National Library of Energy BETA

Sample records for asphalt masonry bricks

  1. An efficient ground penetrating radar finite-difference time-domain subgridding scheme and its application to the non-descructive testing of masonry arch bridges 

    E-Print Network [OSTI]

    Diamanti, Nectaria

    This thesis reports on the application of ground penetrating radar (GPR) as a non-destructive technique for the monitoring of ring separation in brick masonry arch bridges. In addition, research is reported on the ...

  2. Mud-Brick Architecture

    E-Print Network [OSTI]

    Emery, Virginia L.

    2011-01-01

    by the author. Mud-Brick Architecture, Emery, UEE 2011Baldwin 1938 Egyptian architecture as cultural expression.Harrassowitz. 1979a Brick architecture in ancient Egypt.

  3. Measure Guideline: Installing Rigid Foam Insulation on the Interior of Existing Brick Walls

    SciTech Connect (OSTI)

    Natarajan, H.; Klocke, S.; Puttagunta, S.

    2012-06-01

    This measure guideline provides information on an effective method to insulate the interior of existing brick masonry walls with extruded polystyrene (XPS) insulation board. The guide outlines step-by-step design and installation procedures while explaining the benefits and tradeoffs where applicable. The authors intend that this document be useful to a varied audience that includes builders, remodelers, contractors and homeowners.

  4. Measure Guideline. Installing Rigid Foam Insulation on the Interior of Existing Brick Walls

    SciTech Connect (OSTI)

    Natarajan, Hariharan; Klocke, Steve; Puttagunta, Srikanth

    2012-06-01

    This measure guideline provides information on an effective method to insulate the interior of existing brick masonry walls with extruded polystyrene (XPS) insulation board. The guide outlines step-by-step design and installation procedures while explaining the benefits and tradeoffs where applicable. The authors intend that this document be useful to a varied audience that includes builders,remodelers, contractors and homeowners.

  5. Retrofit of a Multifamily Mass Masonry Building in New England

    SciTech Connect (OSTI)

    Ueno, K.; Kerrigan, P.; Wytrykowska, H.; Van Straaten, R.

    2013-08-01

    Merrimack Valley Habitat for Humanity (MVHfH) has partnered with Building Science Corporation to provide high performance affordable housing for 10 families in the retrofit of an existing brick building (a former convent) into condominiums. The research performed for this project provides information regarding advanced retrofit packages for multi-family masonry buildings in Cold climates. In particular, this project demonstrates safe, durable, and cost-effective solutions that will potentially benefit millions of multi-family brick buildings throughout the East Coast and Midwest (Cold climates). The retrofit packages provide insight on the opportunities for and constraints on retrofitting multifamily buildings with ambitious energy performance goals but a limited budget. The condominium conversion project will contribute to several areas of research on enclosures, space conditioning, and water heating. Enclosure items include insulation of mass masonry building on the interior, airtightness of these types of retrofits, multi-unit building compartmentalization, window selection, and roof insulation strategies. Mechanical system items include combined hydronic and space heating systems with hydronic distribution in small (low load) units, and ventilation system retrofits for multifamily buildings.

  6. The 4-dimensional masonry construction

    E-Print Network [OSTI]

    Davis, Lara K. (Lara Katherine)

    2010-01-01

    This design-research thesis - The 4-Dimensional Masonry Construction - presents innovation in the design and construction of thin-shell tile vaulted structures. The core research contributions of this thesis are: #1 Testing ...

  7. Application of petrographic examination techniques to the assessment of fire-damaged concrete and masonry structures

    SciTech Connect (OSTI)

    Ingham, Jeremy P., E-mail: inghamjp@halcrow.com [Halcrow Group Limited, Vineyard House, 44 Brook Green, Hammersmith, London W6 7BY (United Kingdom)

    2009-07-15

    The number of building fires has doubled over the last 50 years. There has never been a greater need for structures to be assessed for fire damage to ensure safety and enable appropriate repairs to be planned. Fortunately, even after a severe fire, concrete and masonry structures are generally capable of being repaired rather than demolished. By allowing direct examination of microcracking and mineralogical changes, petrographic examination has become widely used to determine the depth of fire damage for reinforced concrete elements. Petrographic examination can also be applied to fire-damaged masonry structures built of materials such as stone, brick and mortar. Petrography can ensure accurate detection of damaged geomaterials, which provides cost savings during building repair and increased safety reassurance. This paper comprises a review of the role of petrography in fire damage assessments, drawing on a range of actual fire damage investigations.

  8. Compositional evaluation of asphalt binder recycling agents 

    E-Print Network [OSTI]

    Madrid, Richard Charles

    1997-01-01

    new asphalt binder. The high temperature Superpave TM Performance Grade (PG) specifications for recycled asphalt binders were found to be highly dependent on the aged asphalt. In addition, as the amount of saturates in the aromatic recycling agent...

  9. BBR Asphalt mixture creep test BBR Asphalt mixture creep size effect

    E-Print Network [OSTI]

    Minnesota, University of

    #12;Outline ØBBR Asphalt mixture creep test ØBBR Asphalt mixture creep size effect ØBBR Asphalt Point Bending Test Low temperature 3-point bending creep tests on specimens with three different sizes mixture strength test ØBBR Asphalt binder strength test #12;Asphalt Pavements ØRecent efforts under NCHRP

  10. Retrofit of a MultiFamily Mass Masonry Building in New England

    SciTech Connect (OSTI)

    Ueno, K.; Kerrigan, P.; Wytrykowska, H.; Van Straaten, R.

    2013-08-01

    Merrimack Valley Habitat for Humanity (MVHfH) has partnered with Building Science Corporation to provide high performance affordable housing for 10 families in the retrofit of an existing brick building (a former convent) into condominiums. The research performed for this project provides information regarding advanced retrofit packages for multi-family masonry buildings in Cold climates. In particular, this project demonstrates safe, durable, and cost-effective solutions that will potentially benefit millions of multi-family brick buildings throughout the East Coast and Midwest (Cold climates). The retrofit packages provide insight on the opportunities for and constraints on retrofitting multifamily buildings with ambitious energy performance goals but a limited budget. The condominium conversion project will contribute to several areas of research on enclosures, space conditioning, and water heating. Enclosure items include insulation of mass masonry building on the interior, airtightness of these types of retrofits, multi-unit building compartmentalization, window selection, and roof insulation strategies. Mechanical system items include combined hydronic and space heating systems with hydronic distribution in small (low load) units, and ventilation system retrofits for multifamily buildings.

  11. Seismic Vulnerability and Performance Level of confined brick walls

    SciTech Connect (OSTI)

    Ghalehnovi, M.; Rahdar, H. A. [University of Sistan and Baluchestan, Zahedan (Iran, Islamic Republic of)

    2008-07-08

    There has been an increase on the interest of Engineers and designers to use designing methods based on displacement and behavior (designing based on performance) Regarding to the importance of resisting structure design against dynamic loads such as earthquake, and inability to design according to prediction of nonlinear behavior element caused by nonlinear properties of constructional material.Economically speaking, easy carrying out and accessibility of masonry material have caused an enormous increase in masonry structures in villages, towns and cities. On the other hand, there is a necessity to study behavior and Seismic Vulnerability in these kinds of structures since Iran is located on the earthquake belt of Alpide.Different reasons such as environmental, economic, social, cultural and accessible constructional material have caused different kinds of constructional structures.In this study, some tied walls have been modeled with software and with relevant accelerator suitable with geology conditions under dynamic analysis to research on the Seismic Vulnerability and performance level of confined brick walls. Results from this analysis seem to be satisfactory after comparison of them with the values in Code ATC40, FEMA and standard 2800 of Iran.

  12. Method of forming ceramic bricks

    DOE Patents [OSTI]

    Poeppel, Roger B. (Glen Ellyn, IL); Claar, Terry D. (Newark, DE); Silkowski, Peter (Urbana, IL)

    1988-01-01

    A method for forming free standing ceramic bricks for use as tritium breeder material is disclosed. Aqueous solutions of sodium carbonate and potassium carbonate are mixed with an organic hydrocolloid dispersion and powdered lithium carbonate, spray dried, and ceramic bricks formed by molding in a die and firing.

  13. Method of forming ceramic bricks

    DOE Patents [OSTI]

    Poeppel, R.B.; Claar, T.D.; Silkowski, P.

    1987-04-22

    A method for forming free standing ceramic bricks for use as tritium breeder material is disclosed. Aqueous solutions of sodium carbonate and potassium carbonate are mixed with an organic hydrocolloid dispersion and powdered lithium carbonate, spray dried, and ceramic bricks formed by molding in a die and firing.

  14. Collapse analysis of unreinforced masonry domes and curving walls

    E-Print Network [OSTI]

    Zessin, Jennifer Furstenau

    2012-01-01

    The safety and assessment of historic masonry structures continues to be a challenge for most analysts, especially for more complex buildings. Historic masonry structures have great cultural and economic value, but engineers ...

  15. Life Cycle Assessment of Reclaimed Asphalt Pavement

    E-Print Network [OSTI]

    Minnesota, University of

    such thing as "carbon neutral" · You Can't Quit ­We have to do something #12;Carbon Footprint Perspective · Asphalt Mixture ­60 g C02e/ kg #12;Carbon Footprint Perspective · Asphalt Mixture ­60 g C02e/ kg · Orange Juice ­1600 g C02e/ kg Jan Th. van der Zwan #12;Carbon Footprint Perspective · Asphalt Mixture ­60 g C02

  16. Evaluation of Two CEDA Weatherization Pilot Implementations of an Exterior Insulation and Over-Clad Retrofit Strategy for Residential Masonry Buildings in Chicago

    SciTech Connect (OSTI)

    Neuhauser, K.

    2013-08-01

    This project examines the implementation of an exterior insulation and over-clad strategy for brick masonry buildings in Chicago. The strategy was implemented at a free-standing two story two-family dwelling and a larger free-standing multifamily building. The test homes selected for this research represent predominant housing types for the Chicago area. High heating energy use typical in these buildings threaten housing affordability. Uninsulated mass masonry wall assemblies also have a strongly detrimental impact on comfort. Significant changes to the performance of masonry wall assemblies is generally beyond the reach of typical weatherization (Wx) program resources. The Community and Economic Development Association of Cook County, Inc. (CEDA) has secured a Sustainable Energy Resources for Consumers (SERC) innovation grant sponsored by the United States Department of Energy (DOE). This grant provides CEDA the opportunity to pursue a pilot implementation of innovative approaches to retrofit in masonry wall enclosures. The exterior insulation and over-clad strategy implemented through this project was designed to allow implementation by contractors active in CEDA weatherization programs and using materials and methods familiar to these contractors. The retrofit measures are evaluated in terms of feasibility, cost and performance. Through observations of the strategies implemented, the research described in this report identifies measures critical to performance as well as conditions for wider adoption. The research also identifies common factors that must be considered in determining whether the exterior insulation and over-clad strategy is appropriate for the building.

  17. Expert Meeting Report: Interior Insulation Retrofit of Mass Masonry...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Retrofit of Mass Masonry Wall Assemblies K. Ueno and R. Van Straaten Building Science Corporation (BSC) February 2012 ii NOTICE This report was prepared as an account of...

  18. Measure Guideline. Internal Insulation of Masonry Walls

    SciTech Connect (OSTI)

    Straube, J. F.; Ueno, K.; Schumacher, C. J.

    2012-07-01

    This measure guideline provides recommendations for interior insulation assemblies that control interstitial condensation and durability risks; recommendations for acceptable thermal performance are also provided. An illustrated guide of high-risk exterior details (which concentrate bulk water), and recommended remediation details is provided. This is followed by a recommended methodology for risk assessment of a masonry interior insulation project: a series of steps are suggested to assess the risks associated with this retrofit, with greater certainty with added steps.

  19. Measure Guideline: Internal Insulation of Masonry Walls

    SciTech Connect (OSTI)

    Straube, J. F.; Ueno, K.; Schumacher, C. J.

    2012-07-01

    This measure guideline provides recommendations for interior insulation assemblies that control interstitial condensation and durability risks; recommendations for acceptable thermal performance are also provided. An illustrated guide of high-risk exterior details (which concentrate bulk water), and recommended remediation details is provided. This is followed by a recommended methodology for risk assessment of a masonry interior insulation project: a series of steps are suggested to assess the risks associated with this retrofit, with greater certainty with added steps.

  20. Materials characterization of asphalt and polymer modified asphalt 

    E-Print Network [OSTI]

    Paramasivam, Mohan

    1992-01-01

    specimen mold made of aluminum ? ? ? ? ? ? ? ? ? ? - 28 5. Strain sweep of Santa Maria AC10/AR4000 at 100 rad/sec --- 33 6. Strain sweep of Conoco AC10 at 10 rad/sec ------------- 34 7. Stress relaxation modulus of AAM grade asphalt at 25'C --- 37 8.... The verification of Cox-Merz rule for Santa Maria AC6/AR2000 at 40'C- 9. The master curve of Santa Maria AC6/Muehlstein LDPE shifted to 25'C showing the errors 10. Master curve (G') of Santa Maria AC6 shifted to 25'C ? ? ? ? ? 43 11. Master curve of Santa...

  1. The minimum information for a qualified BioBrick

    E-Print Network [OSTI]

    Zhou, Mubing

    2012-10-11

    Since the information of many existing BioBricks is incomplete, thus the usage of the BioBricks will be affected. It is necessary to standardize the minimum information required for a qualified BioBrick. Furthermore this ...

  2. A Study on the Durability of Flexible Pavement Materials: Asphalt Absorption and Oxidation Kinetics 

    E-Print Network [OSTI]

    Liu, Guanlan

    2015-08-10

    affecting pavement durability are the absorption of asphalt into porous aggregates and the hardening of asphalt due to oxidation. Asphalt absorption reduces the effective binder content in the pavement. Meanwhile, the oxidative hardening of asphalt...

  3. Evaluation of Two CEDA Weatherization Pilot Implementations of an Exterior Insulation and Over-Clad Retrofit Strategy for Residential Masonry Buildings in Chicago

    SciTech Connect (OSTI)

    Neuhauser, Ken

    2013-08-01

    This project examines the implementation of an exterior insulation and over-clad strategy for brick masonry buildings in Chicago—a free-standing two story two-family dwelling and a larger free-standing multifamily building. The test homes selected for this research represent predominant housing types for the Chicago area, in which high heating energy use typical in these buildings threaten housing affordability, and uninsulated mass masonry wall assemblies are uncomfortable for residents. In this project, the Community and Economic Development Association of Cook County, Inc. (CEDA) has secured a Sustainable Energy Resources for Consumers (SERC) innovation grant sponsored by DOE to pursue a pilot implementation of innovative approaches to retrofit in masonry wall enclosures. The retrofit measures are evaluated in terms of feasibility, cost and performance. Through observations of the strategies implemented, the research described in this report identifies measures critical to performance as well as conditions for wider adoption. The research also identifies common factors that must be considered in determining whether the exterior insulation and over-clad strategy is appropriate for the building.

  4. Microstructural viscoplastic continuum model for asphalt concrete 

    E-Print Network [OSTI]

    Tashman, Laith

    2004-09-30

    deformation of Asphalt Concrete (AC) at high temperatures. These phenomena include strain rate dependency, confining pressure dependency, dilation, aggregate friction, anisotropy, and damage. The model is based on Perzyna's theory of viscoplasticity...

  5. Rapid determination of actinides in asphalt samples

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Maxwell, Sherrod L.; Culligan, Brian K.; Hutchison, Jay B.

    2014-01-12

    A new rapid method for the determination of actinides in asphalt samples has been developed that can be used in emergency response situations or for routine analysis If a radiological dispersive device (RDD), Improvised Nuclear Device (IND) or a nuclear accident such as the accident at the Fukushima Nuclear Power Plant in March, 2011 occurs, there will be an urgent need for rapid analyses of many different environmental matrices, including asphalt materials, to support dose mitigation and environmental clean up. The new method for the determination of actinides in asphalt utilizes a rapid furnace step to destroy bitumen and organicsmore »present in the asphalt and sodium hydroxide fusion to digest the remaining sample. Sample preconcentration steps are used to collect the actinides and a new stacked TRU Resin + DGA Resin column method is employed to separate the actinide isotopes in the asphalt samples. The TRU Resin plus DGA Resin separation approach, which allows sequential separation of plutonium, uranium, americium and curium isotopes in asphalt samples, can be applied to soil samples as well.« less

  6. Rapid determination of actinides in asphalt samples

    SciTech Connect (OSTI)

    Maxwell, Sherrod L.; Culligan, Brian K.; Hutchison, Jay B.

    2014-01-12

    A new rapid method for the determination of actinides in asphalt samples has been developed that can be used in emergency response situations or for routine analysis If a radiological dispersive device (RDD), Improvised Nuclear Device (IND) or a nuclear accident such as the accident at the Fukushima Nuclear Power Plant in March, 2011 occurs, there will be an urgent need for rapid analyses of many different environmental matrices, including asphalt materials, to support dose mitigation and environmental clean up. The new method for the determination of actinides in asphalt utilizes a rapid furnace step to destroy bitumen and organics present in the asphalt and sodium hydroxide fusion to digest the remaining sample. Sample preconcentration steps are used to collect the actinides and a new stacked TRU Resin + DGA Resin column method is employed to separate the actinide isotopes in the asphalt samples. The TRU Resin plus DGA Resin separation approach, which allows sequential separation of plutonium, uranium, americium and curium isotopes in asphalt samples, can be applied to soil samples as well.

  7. Constant displacement rate experiments and constitutive modeling of asphalt mixtures 

    E-Print Network [OSTI]

    Hariharakumar, Pradeep

    2006-04-12

    The focus of this dissertation is on constant displacment rate experiments on asphalt concrete and on developing continuum models in a general thermo-mechanical setting which will corroborate with the experimental results. Modeling asphalt concrete...

  8. Moisture Diffusion in Asphalt Binders and Fine Aggregate Mixtures 

    E-Print Network [OSTI]

    Vasconcelos, Kamilla L.

    2011-08-08

    cost in highway maintenance and vehicle operations. One key mechanism of how moisture reaches the asphalt-aggregate interface is by its permeation or diffusion through the asphalt binder or mastic. Different techniques are available for diffusion...

  9. Study of properties of sand asphalt using a torsional rheometer 

    E-Print Network [OSTI]

    Kasula, Lavan Kumar Reddy

    2004-11-15

    The modeling of Sand Asphalt and experiments to measure their rheological properties are of vital concern to many industrial processes especially highway and roadway pavement construction industry. A variety of hot mix asphalt mixtures are used...

  10. Characterization of Fatigue Cracking and Healing of Asphalt Mixtures 

    E-Print Network [OSTI]

    Luo, Xue

    2012-07-16

    Fatigue cracking is one of the most common distresses of asphalt pavements, whereas healing is a counter process to cracking which alleviates cracking damage and extends fatigue life of asphalt pavements. Most of existing ...

  11. Controlling Thermal Properties of Asphalt Concrete and its Multifunctional Applications 

    E-Print Network [OSTI]

    Shi, Xijun

    2014-08-10

    ) by controlling thermal properties of the construction materials. To change thermal properties of asphalt concrete, expanded polypropylene (EPP) pellet and graphite were selected as the additives and mixed into asphalt concrete. Experimental tests are classified...

  12. Damage analysis in asphalt concrete mixtures based on parameter relationships 

    E-Print Network [OSTI]

    Song, Injun

    2004-11-15

    Asphalt pavements experience damage due to traffic loading under various environmental conditions. Damage can be caused by viscopl microcracks, fracture due to fatigue cracking, or fracture due to thermal cracking. Asphalt pavements have...

  13. Evaluation of Rexene polymers in hot mixed asphalt concrete 

    E-Print Network [OSTI]

    Rodriguez, Mary Anne Reese

    1991-01-01

    flexibility and ductility at lower temperatures. The mixture study investigated the performance of asphalt concrete mixtures made with a control asphalt cement and mixtures made with the polymer modified asphalt cements. Susceptibility of the mixture..., indicating that the polymer modified mixtures are less susceptible to permanent deformation. Rexene APAO polymers will provide marketable products for modifying paving grade asphalts and can compete equitably with other commercially available polymers...

  14. The curing of asphalt with rubber and its effect on the physical and chemical properties of asphalt-rubber binders 

    E-Print Network [OSTI]

    Chun, Jay Sung

    1995-01-01

    The objective of this research was to develop a potentially useful asphalt-rubber binder using the curing process. For the curing process, six parameters, which altered the physical and chemical properties of the asphalt-rubber binder, were tested...

  15. Empirical analysis of masonry walls : structural design and seismic reinforcement through tilting experiments

    E-Print Network [OSTI]

    Jimenez, Daniel D. (Daniel David)

    2011-01-01

    Masonry is a fundamental building material that is used for a significant proportion of structures across the world, many of which lie in potentially hazardous environments. While masonry naturally has poor performance ...

  16. The effects of asphalt binder oxidation on hot mix asphalt concrete mixture rheology and fatigue performance 

    E-Print Network [OSTI]

    Jung, Sung Hoon

    2009-06-02

    Asphalt oxidation causes major changes to binder properties and is hypothesized to be a major contributor to age-related pavement failure such as fatigue cracking. Extensive laboratory aging research has been done to assess ...

  17. Prediction of Asphalt Mixture Compactability from Mixture, Asphalt, and Aggregate Properties 

    E-Print Network [OSTI]

    Muras, Andrew J.

    2010-07-14

    The underlying purpose of any pavement is to provide a safe, smooth and reliable surface for the intended users. In the case of hot mix asphalt (HMA) pavements, this includes producing a surface that is resistant to the ...

  18. Identification of asphalt binder properties that affect cracking performance of hot mixed asphalt concrete pavements 

    E-Print Network [OSTI]

    Hastings, Charles Patrick

    1997-01-01

    with the original mixture designs, compacted in the laboratory, and tested using the National Cooperative Highway Research Program (NCHRP) asphalt aggregate mixture analysis system (AAMAS) test protocols to assess relative resistance to fatigue cracking. Field cores...

  19. Calibration under uncertainty for finite element models of masonry monuments

    SciTech Connect (OSTI)

    Atamturktur, Sezer,; Hemez, Francois,; Unal, Cetin

    2010-02-01

    Historical unreinforced masonry buildings often include features such as load bearing unreinforced masonry vaults and their supporting framework of piers, fill, buttresses, and walls. The masonry vaults of such buildings are among the most vulnerable structural components and certainly among the most challenging to analyze. The versatility of finite element (FE) analyses in incorporating various constitutive laws, as well as practically all geometric configurations, has resulted in the widespread use of the FE method for the analysis of complex unreinforced masonry structures over the last three decades. However, an FE model is only as accurate as its input parameters, and there are two fundamental challenges while defining FE model input parameters: (1) material properties and (2) support conditions. The difficulties in defining these two aspects of the FE model arise from the lack of knowledge in the common engineering understanding of masonry behavior. As a result, engineers are unable to define these FE model input parameters with certainty, and, inevitably, uncertainties are introduced to the FE model.

  20. Modeling environmental impact of unfired bricks in India

    E-Print Network [OSTI]

    Zachau Walker, Miriam E. (Miriam Elizabeth)

    2013-01-01

    Brick manufacturing requires a considerable amount of energy and land, but these numbers have been difficult to quantify in rural parts of the developing world. The environmental impact of unfired bricks in India is ...

  1. Continuum-Based Constitutive Modeling of Coupled Oxidative Aging-Mechanical Response of Asphalt Concrete 

    E-Print Network [OSTI]

    Rahmani, Eisa

    2015-05-01

    Oxidative aging is known to be one of the main contributors to reducing the service life of asphalt pavements. Asphalt concrete becomes stiffer and more brittle when it reacts with oxygen. The aged asphalt pavement is more susceptible to crack...

  2. Hunting for that one special brick? This is the

    E-Print Network [OSTI]

    Li, Yang V.

    ), 'my family either worked in the coal mine or made brick,'" he said. The brick industry existed in many said, as they were used to create the roads needed to transport steel and other materials. Bricks made) is more cost-effective in the long (run)," he said. #12;According to Boll, while it costs more to lay

  3. Full-Depth Pavement Reclamation with Foamed Asphalt: Final Report

    E-Print Network [OSTI]

    Jones, David; Fu, P.; Harvey, John T; Halles, F.

    2008-01-01

    asphalt mixes made from recycled aggregates with the same orasphalt mixes made from recycled aggregates with the same orconsists mostly of recycled natural aggregate and cracked

  4. Blending of processed pitches for the production of roofing asphalts

    SciTech Connect (OSTI)

    Poirier, M.A.; Sawatzky, H.

    1987-01-01

    Asphalt is a natural constituent of crude oils and is presently produced from the distillation residues of refining feedstocks. The asphalt market is saturated at this time and it appears that in the near future refineries will upgrade bitumens/heavy oils and vacuum residues via technologies such as hydrocracking, H-Oil and LC-Fining to produce more transportation fuels. Therefore, there will be economic pressure for the utilization of the resulting processed residues as road and roofing asphalts rather than low grade fuels. In this work the use of processed residues for the production of roofing asphalts has been investigated. Results show that 28-30 wt% of processed residue can be blended with 150-200 penetration asphalt cement to produce Type I roofing asphalt. The physical properties of the roofing asphalts were examined in terms of the composition (saturates, aromatics, resins, and asphaltenes) as well as average molecular weight of the maltenes and asphaltenes determined by gel permeation chromatography. The results are compared with two roofing asphalts obtained from petroleum refineries.

  5. Microstructural Characterization of Material Properties and Damage in Asphalt Composites 

    E-Print Network [OSTI]

    Mohammad Khorasani, Sara

    2013-05-03

    Asphalt composites are used to construct 90% of roads in the United States. These composites consist of asphalt binder, which is a product of the refinery process of oil, aggregates, and air voids. Fatigue cracking is one of the most important...

  6. Decreasing water absorption in and environmental analysis of alkali activated bricks

    E-Print Network [OSTI]

    Aponte, Cecilio (Cecilio Aponte, III)

    2015-01-01

    Alkali activated bricks offer an alternative to traditional clay fired bricks for use in construction in the developing world. Previous work in this lab focused on creating a robust mix formulation to create these bricks, ...

  7. Settling of rubber particles in asphalt-rubber blends 

    E-Print Network [OSTI]

    Wattanachai, Piyachat

    1998-01-01

    of the binders seemed to be deteriorated by these severe curing conditions. Air blowing was conducted with an expectation of improving high temperature properties while the added rubber benefited low temperature properties. Low molecular weight asphalt or low...

  8. Imparting Electrical Conductivity into Asphalt Composites Using Graphite 

    E-Print Network [OSTI]

    Baranikumar, Aishwarya

    2013-07-09

    publications showed the potential of graphite in mitigating the sudden transition. The study presented herein investigates possibility of precisely controlling the electrical conductivity of asphalt concrete only by adding filler size graphite powder. Nine...

  9. Relationship between composition and performance of asphalt recycling agents 

    E-Print Network [OSTI]

    Peterson, Gerald Dean

    1993-01-01

    This research was aimed at determining the effects of recycling agent composition on the performance of recycled asphalt with aging. To accomplish this, five experiments were performed, in which blends were produced with controlled compositions...

  10. Viscoelastic{Viscoplastic Damage Model for Asphalt Concrete 

    E-Print Network [OSTI]

    Graham, Michael A.

    2010-10-12

    in experiments, and their model was limited to uniaxial loading. Chehab et al. (2003) developed a continuum viscoelastoplastic model for undamaged asphalt concrete, but its scope was also limited to uniaxial characterization. Uzan (2005) developed a damaged...

  11. Evaluation of moisture damage within asphalt concrete mixes 

    E-Print Network [OSTI]

    Shah, Brij D.

    2004-09-30

    (Member) (Head of Department) August 2003 Major Subject: Civil Engineering iii ABSTRACT Evaluation of Moisture Damage within Asphalt Concrete Mixes. (August 2003) Brij D. Shah, B.E., Gujarat University Chair...

  12. Methodology for predicting asphalt concrete overlay life against reflection cracking 

    E-Print Network [OSTI]

    Jayawickrama, Priyantha Warnasuriya

    1985-01-01

    METHODOLOGY FOR PREDICTING ASPHALT CONCRETE OVERLAY Lr 8 AGAINST REFLECTION CRACKING A Thesis by PRIYANTHA NARNASURIYA JAYAWICKRAMA Submitted to the Graduate College of Texas A8M University in Partial fulfillment of the requirements.... Experimental investigations carried out at Ohio State University ( 1, 2, 3) and Texas A8M University ( 4, 5, 6 ) have verified the applicability of fracture mechanics principles in predicting fatigue life of asphalt TIP OF THE CRACX /~ // N/i OVERLAY OLD...

  13. Use of VFDs on Asphalt Plant Induced Draft Fans 

    E-Print Network [OSTI]

    Anderson, G. R.; Case, P. L.; Lowery, J.

    2005-01-01

    by feeding aggregate into a mixing drum where a burner heats and dries the aggregate. Liquid asphalt cement is added to the aggregate before the hot mix is transferred from the drum to holding silos. Most plants use some recycled pavement which... is loaded, screened and fed to the drum mixer. With approximately 3,600 existing asphalt plants in operation across the United States, a large opportunity for retrofits exists. Working with manufacturers and owners, a new standard can be established...

  14. Relationship Between Surface Free Energy and Total Work of Fracture of Asphalt Binder and Asphalt Binder-Aggregate Interfaces 

    E-Print Network [OSTI]

    Howson, Jonathan Embrey

    2012-10-19

    Performance of asphalt mixtures depends on the properties of its constituent materials, mixture volumetrics, and external factors such as load and environment. An important material property that influences the performance ...

  15. 2009 Voluntary Protection Programs Participants' Association (VPPPA) Presentation: Follow The Yellow Brick Road to Safety

    Broader source: Energy.gov [DOE]

    2009 Voluntary Protection Programs Participants' Association (VPPPA) Presentation: Follow The Yellow Brick Road to Safety

  16. Asphalt Roofing Shingles Into Energy Project Summary Report

    SciTech Connect (OSTI)

    Jameson, Rex, PE

    2008-04-28

    Based on a widely cited September, 1999 report by the Vermont Agency of Natural Resources, nearly 11 million tons of asphalt roofing shingle wastes are produced in the United States each year. Recent data suggests that the total is made up of about 9.4 million tons from roofing tear-offs and about 1.6 million tons from manufacturing scrap. Developing beneficial uses for these materials would conserve natural resources, promote protection of the environment and strengthen the economy. This project explored the feasibility of using chipped asphalt shingle materials in cement manufacturing kilns and circulating fluidized bed (CFB) boilers. A method of enhancing the value of chipped shingle materials for use as fuel by removing certain fractions for use as substitute raw materials for the manufacture of new shingles was also explored. Procedures were developed to prevent asbestos containing materials from being processed at the chipping facilities, and the frequency of the occurrence of asbestos in residential roofing tear-off materials was evaluated. The economic feasibility of each potential use was evaluated based on experience gained during the project and on a review of the well established use of shingle materials in hot mix asphalt. This project demonstrated that chipped asphalt shingle materials can be suitable for use as fuel in circulating fluidized boilers and cement kilns. More experience would be necessary to determine the full benefits that could be derived and to discover long term effects, but no technical barriers to full scale commercial use of chipped asphalt shingle materials in these applications were discovered. While the technical feasibility of various options was demonstrated, only the use of asphalt shingle materials in hot mix asphalt applications is currently viable economically.

  17. A Coupled Micromechanical Model of Moisture-Induced Damage in Asphalt Mixtures: Formulation and Applications 

    E-Print Network [OSTI]

    Caro Spinel, Silvia

    2011-02-22

    The deleterious effect of moisture on the structural integrity of asphalt mixtures has been recognized as one of the main causes of early deterioration of asphalt pavements. This phenomenon, usually referred to as moisture ...

  18. Evaluation of the filler effects on fatique cracking and permanent deformation of asphalt concrete mixtures 

    E-Print Network [OSTI]

    Izzo, Richard P

    1997-01-01

    The addition of hydrated lime to asphalt has shown to be beneficial with an improvement in the Theological properties of the binder, as well as resistance to permanent deformation (rutting) and fatigue cracking of asphalt concrete mixtures...

  19. Embodied Energy of Fired Bricks: The Case of Uganda and Tanzania

    E-Print Network [OSTI]

    Hashemi, Arman; Cruickshank, Heather

    2015-07-30

    and wastes the energy while too little air flow will stop the fuel from burning properly. Providing dampers and wind breaks to control/protect the fire could greatly improve the fuel efficiency of kilns (Practical Action). 5. BRICK SUPPLIERS Artisans... , small- and medium-scale manufactures are the three major types of suppliers of bricks in Uganda (Table 2). Bricks produced by artisans take a larger share of the market compared to small- and medium-scale manufactured bricks. The handmade bricks...

  20. Confined masonry for seismically resilient low-cost housing in India : a design and analysis method

    E-Print Network [OSTI]

    Porst, Christopher F

    2015-01-01

    Confined masonry (CM) is a viable housing typology that is resilient and economical for developing countries in seismic regions. Given its suitability for low-tech environments, multiple authors have published instructions ...

  1. Structural performance of early 20th century masonry high rise buildings

    E-Print Network [OSTI]

    Buntrock, Rebecca (Rebecca Miriam)

    2010-01-01

    Early generation high rise buildings built between 1890 and World War 11 represent a technical transition between traditional load bearing masonry construction and modern curtain wall systems, and are typically referred ...

  2. Investigation of Asphalt Mixture Creep Behavior Using Thin Beam Specimens

    SciTech Connect (OSTI)

    Zofka, Adam; Marasteanu, Mihai; Turos, Mugur

    2008-02-15

    The asphalt pavement layer consists of two or more lifts of compacted asphalt mixture; the top of the layer is also exposed to aging, a factor that significantly affects the mixture properties. The current testing specifications use rather thick specimens that cannot be used to investigate the gradual change in properties with pavement depth. This paper investigates the feasibility of using the 3-point bending test with thin asphalt mixture beams (127x12.7x6.35 mm) to determine the low-temperature creep compliance of the mixtures. Several theoretical and semi-empirical models, from the theory of composites, are reviewed and evaluated using numerical and experimental data. Preliminary results show that this method can be used for low-temperature mixture characterization but several crucial factors need further inspection and interpretation.

  3. Evaluation of products recovered from scrap tires for use as asphalt modifiers

    SciTech Connect (OSTI)

    McKay, J.

    1992-05-01

    Western Research Institute performed rheological tests and water sensitivity tests on asphalt cements that had been modified with carbonous residues obtained from the pyrolysis of scrap tires and waste motor oil. These tests are part of an ongoing program at the University of Wyoming Chemical Engineering Department to evaluate, as asphalt additives, solid carbonous products recovered from the scrap tire and waste motor oil pyrolysis experiments conducted at the University. The tests showed that carbonous residues increased the viscosity and decreased the elasticity of AC-10 and AC-20 asphalts. The tests also indicatedthat asphalt cements modified with carbonous residues were less sensitive to water damage and age embrittlement than unmodified asphalt cements.

  4. Fiber reinforcement of asphalt concrete using cow manure 

    E-Print Network [OSTI]

    Bakar, Mohammed Abu

    1976-01-01

    FIBER REINFORCEMENT OF ASPHALT CONCRETE USING COW MANURE A Thesis by MOHAMMED ABU BAKAR Submitted to the Graduate College of Texas A&M Uaivers"ty in partial fulfill-ent of the recuirement for the degree of STER OF SCIENCE December I976... klajor Subject: Mechanical Engineering FIBER REINFORCKCENT OF ASPHALT CONCRETE USING COW MANURE A These. s by MOE&RM ABU BAKAR Approved as to style and content by: c -~WiH. rman ot Commrt ee ead or Departm ) (M ber) / ( rber) (Member) December...

  5. Automated titration method for use on blended asphalts

    DOE Patents [OSTI]

    Pauli, Adam T. (Cheyenne, WY); Robertson, Raymond E. (Laramie, WY); Branthaver, Jan F. (Chatham, IL); Schabron, John F. (Laramie, WY)

    2012-08-07

    A system for determining parameters and compatibility of a substance such as an asphalt or other petroleum substance uses titration to highly accurately determine one or more flocculation occurrences and is especially applicable to the determination or use of Heithaus parameters and optimal mixing of various asphalt stocks. In a preferred embodiment, automated titration in an oxygen gas exclusive system and further using spectrophotometric analysis (2-8) of solution turbidity is presented. A reversible titration technique enabling in-situ titration measurement of various solution concentrations is also presented.

  6. An investigation of the use of tire rubber in asphalt 

    E-Print Network [OSTI]

    Koo, Heamo Lee

    1996-01-01

    , and Exxon AC-5. With respect to rubber type, the Rouse rubber was determined to improve Theological properties of the asphalt-rubber binder more than the Tire-Gator rubber. The curing process was also shown to increase the breakdown of the rubber...

  7. TECHNICAL POLLUTION PREVENTION GUIDE FOR ASPHALT PREPARATION OPERATIONS

    E-Print Network [OSTI]

    #12;TECHNICAL POLLUTION PREVENTION GUIDE FOR ASPHALT PREPARATION OPERATIONS IN THE LOWER FRASER BASIN DOE FRAP 1996-12 Prepared for: Environment Canada Environmental Protection Fraser Pollution through its Fraser Pollution Abatement Office. Environment Canada is not responsible for the content

  8. A New Standard to Connect BioBrick Parts for Precise Extraction of an Enzyme Digestion Product

    E-Print Network [OSTI]

    Uekusa, Kousuke

    2010-12-05

    This BioBricks Foundation Request for Comments (BBF RFC) introduces a new standard to connect BioBrick parts using BglI site.

  9. External Insulation of Masonry Walls and Wood Framed Walls

    SciTech Connect (OSTI)

    Baker, P.

    2013-01-01

    The use of exterior insulation on a building is an accepted and effective means to increase the overall thermal resistance of the assembly that also has other advantages of improved water management and often increased air tightness of building assemblies. For thin layers of insulation (1" to 1 1/2"), the cladding can typically be attached directly through the insulation back to the structure. For thicker insulation layers, furring strips have been added as a cladding attachment location. This approach has been used in the past on numerous Building America test homes and communities (both new and retrofit applications), and has been proven to be an effective and durable means to provide cladding attachment. However, the lack of engineering data has been a problem for many designers, contractors, and code officials. This research project developed baseline engineering analysis to support the installation of thick layers of exterior insulation on existing masonry and frame walls. Furthermore, water management details necessary to integrate windows, doors, decks, balconies and roofs were created to provide guidance on the integration of exterior insulation strategies with other enclosure elements.

  10. External Insulation of Masonry Walls and Wood Framed Walls

    SciTech Connect (OSTI)

    Baker, P.

    2013-01-01

    The use of exterior insulation on a building is an accepted and effective means to increase the overall thermal resistance of the assembly that also has other advantages of improved water management and often increased air tightness of building assemblies. For thin layers of insulation (1” to 1 ½”), the cladding can typically be attached directly through the insulation back to the structure. For thicker insulation layers, furring strips have been added as a cladding attachment location. This approach has been used in the past on numerous Building America test homes and communities (both new and retrofit applications), and has been proven to be an effective and durable means to provide cladding attachment. However, the lack of engineering data has been a problem for many designers, contractors, and code officials. This research project developed baseline engineering analysis to support the installation of thick layers of exterior insulation on existing masonry and frame walls. Furthermore, water management details necessary to integrate windows, doors, decks, balconies and roofs were created to provide guidance on the integration of exterior insulation strategies with other enclosure elements.

  11. An analysis of some properties of paving asphalts in Texas as they relate to pavement performance 

    E-Print Network [OSTI]

    DuBose, Emmett Haygood

    1980-01-01

    University Chairman of Adv1sory Committee: Dr. William B. Ledbetter This study exam1nes the possibility of the ex1stence of a better defined relationship between rheological asphalt binder properties and pavement performance of thin asphaltic concrete... Directed Interaction Graph of the Relationship Between Pavement Performance and Asphalt Binder Properties for 19 Texas Pavements 122 CHAPTER I INTRODUCTION BACKGROUND In recent years there has been a growing concern 1n the road construction industry...

  12. Tertiary nitrogen heterocyclic material to reduce moisture-induced damage in asphalt-aggregate mixtures

    DOE Patents [OSTI]

    Plancher, Henry (Laramie, WY); Petersen, Joseph C. (Laramie, WY)

    1982-01-01

    Asphalt-aggregate roads crack when subjected to freezing and thawing cycles. Herein, the useful life of asphalts are substantially improved by a minor amount of a moisture damage inhibiting agent selected from compounds having a pyridine moiety, including acid salts of such compounds. A shale oil fraction may serve as the source of the improving agent and may simply be blended with conventional petroleum asphalts.

  13. A novel technique for the production of cool colored concrete tile and asphalt shingle roofing products

    E-Print Network [OSTI]

    Levinson, Ronnen

    2010-01-01

    Wavelength (nm) In press at Solar Energy Materials & Solarcool asphalt shingles. Solar Energy Materials & Solar Cellsof common colorants, Solar Energy Materials & Solar Cells

  14. Integrated coke, asphalt and jet fuel production process and apparatus

    DOE Patents [OSTI]

    Shang, Jer Y. (McLean, VA)

    1991-01-01

    A process and apparatus for the production of coke, asphalt and jet fuel m a feed of fossil fuels containing volatile carbon compounds therein is disclosed. The process includes the steps of pyrolyzing the feed in an entrained bed pyrolyzing means, separating the volatile pyrolysis products from the solid pyrolysis products removing at least one coke from the solid pyrolysis products, fractionating the volatile pyrolysis products to produce an overhead stream and a bottom stream which is useful as asphalt for road pavement, condensing the overhead stream to produce a condensed liquid fraction and a noncondensable, gaseous fraction, and removing water from the condensed liquid fraction to produce a jet fuel-containing product. The disclosed apparatus is useful for practicing the foregoing process. the process provides a useful method of mass producing and jet fuels from materials such as coal, oil shale and tar sands.

  15. Dynamic photoluminescence lifetime imaging of multicrystalline silicon bricks

    E-Print Network [OSTI]

    ,n , Karsten Bothe a , Jan Schmidt a,b , Rolf Brendel a,b , Sebastian Siegmund c a Institute for Solar Energy, Leibniz University of Hanover (LUH), Appelstraße 2, 30167 Hannover, Germany c Schott Solar Wafer GmbH, Fab,2]. The advantage of investigating the brick over measuring as-cut wafers is the smaller influence of the surface

  16. Microstructural Characterization of the Chemo-mechanical Behavior of Asphalt in Terms of Aging and Fatigue Performance Properties 

    E-Print Network [OSTI]

    Allen, Robert Grover

    2013-03-27

    The study of asphalt chemo-mechanics requires a basic understanding of the physical properties and chemical composition of asphalt and how these properties are linked to changes in performance induced by chemical modifications. ...

  17. A unified method for the analysis of nonlinear viscoelasticity and fatigue cracking of asphalt mixtures using the dynamic mechanical analyzer 

    E-Print Network [OSTI]

    Castelo Branco, Veronica Teixeira Franco

    2009-05-15

    Fatigue cracking is one of the primary modes of distress in asphalt pavements that has an important economic impact. Fatigue resistance characterization of an asphalt mixture is a complex issue due to: (i) composite ...

  18. Expert Meeting Report: Interior Insulation Retrofit of Mass Masonry Wall Assemblies

    SciTech Connect (OSTI)

    Ueno, K.; Van Straaten, R.

    2012-02-01

    The Building Science Consortium held an Expert Meeting on Interior Insulation Retrofit of Mass Masonry Wall Assemblies on July 30, 2011 at the Westford Regency Hotel in Westford, MA. This report outlines the extensive information that was presented on assessment of risk factors for premature building deterioration due to interior insulation retrofits, and methods to reduce such risks.

  19. Expert Meeting Report. Interior Insulation Retrofit of Mass Masonry Wall Assemblies

    SciTech Connect (OSTI)

    Ueno, K.; Van Straaten, R.

    2012-02-01

    The Building Science Consortium held an Expert Meeting on Interior Insulation Retrofit of Mass Masonry Wall Assemblies on July 30, 2011, at the Westford Regency Hotel in Westford, MA. This report outlines the extensive information that was presented on assessment of risk factors for premature building deterioration due to interior insulation retrofits, and methods to reduce such risks.

  20. PREDICTING UNDERSEEPAGE OF MASONRY DAMS Published in Proceedings of 29th

    E-Print Network [OSTI]

    PREDICTING UNDERSEEPAGE OF MASONRY DAMS Published in Proceedings of 29th ASDSO Conference (1934) selected conservative values of safe creep ratios because of the small number of dam failures judgment is recommended in designing a dam for safety against piping, and Lane's values are a starting

  1. Canadian Masonry Symposium, Banff, Alberta, June 8 12, 2005 A PROBABILISTIC APPROACH FOR THE INTERPRETATION OF

    E-Print Network [OSTI]

    Garavaglia, Elsa

    , modelling the results of laboratory creep tests on the masonry of ancient buildings. KEYWORDS: Historic have been adopted to understand the phenomenon, from creep to pseudo-creep tests, and various, cyclic tests and a creep test. Their results were discussed in (3). Two series of pseudo-creep tests

  2. Studies of asphalt air blowing and development of a new short-term aging technique 

    E-Print Network [OSTI]

    Vassiliev, Nicolai

    2001-01-01

    In this work asphalt air blowing has been studied from two perspectives. First, the process itself was investigated in terms of the effect of air-blowing conditions on the properties of the asphalt materials obtained. It was found that according...

  3. Project Information Form Project Title Evaluation of the Combined Effect of Recycled Asphalt Pavement (RAP),

    E-Print Network [OSTI]

    California at Davis, University of

    Project Information Form Project Title Evaluation of the Combined Effect of Recycled Asphalt(s) and Amounts Provided (by each agency or organization) Caltrans $90,315 Total Project Cost $90,315 Agency ID Description of Research Project As virgin material sources become increasingly scarce, and the volume

  4. MODELING OF ASPHALT DURABILITY AND SELF-HEALING WITH DISCRETE PARTICLES METHOD

    E-Print Network [OSTI]

    Luding, Stefan

    of asphalt and the mechanics of the bitumen layer between the particles are only partly involved in this kind Asphalt mixtures are composite materials that consist of solid particles, viscous binder/fluid (bitumen changes: starting from the initially loose material, the particle in the skeleton move close to each other

  5. Remedial investigation/feasibility study analysis asphalt storage area, Elmendorf AFB, Alaska. Master's thesis

    SciTech Connect (OSTI)

    Miller, N.S.

    1993-01-01

    This report is focused on an abandoned material storage area located on Elmendorf Air Force Base (EAFB), Alaska. The site is located approximately 2000 feet from the east end of the east/west runway and includes approximately 25 acres. The site was used for asphalt storage and preparation activities during the 1940s and 1950s. Approximately 4,500 drums of asphalt and 29 drums of unknown materials have been abandoned at the site. The drums are located in 32 areas throughout the 25-acre site. Following several decades of exposure to the elements, many of the drums have corroded and leaked to the ground surface. Several acres of soil are inundated with liquid asphalt that has leaked from the drums. Depths of the asphalt range from 6 to 10 inches in areas where surface anomalies have created depressions, and thus a collection point for the asphalt. A 14-x 18-x 4 foot wood frame pit used to support previous asphalt operations is located at the north end of the site. The pit contains approximately 2300 gallons of asphalt. There are also locations where the soil appears to be contaminated by petroleum products other than asphalt.

  6. Hanford Permanent Isolation Barrier Program: Asphalt technology data and status report - FY 1994

    SciTech Connect (OSTI)

    Freeman, H.D.; Romine, R.A.; Zacher, A.H.

    1994-09-01

    The asphalt layer within the Hanford Permanent Isolation Barrier (HPIB) is an important component of the overall design. This layer provides a RCRA equivalent backup to the overlying earthen layers in the unlikely event that these layers are not able to reduce the infiltration rate to less than 0.05 cm/yr. There is only limited amount of information on using asphalt for a moisture infiltration barrier over the long times required by the HPIB. Therefore, a number of activities are under way, as part of the Barrier Development Program, to obtain data on the performance of asphalt as a moisture barrier in a buried environment over a 1000-year period. These activities include (1) determining RCRA equivalency, (2) measurement of physical properties, (3) measurement of aging characteristics, and (4) relationship to ancient asphalt analogs. During FY 1994 progress was made on all of these activities. Studies were conducted both in the laboratory and on the prototype barrier constructed over the 216-B-57 crib in the 200 East Area on the Hanford Site. This report presents results obtained from the asphalt technology tasks during FY 1994. Also included are updates to planned activities for asphalt analogs and monitoring the asphalt test pad near the prototype barrier. Measurements of hydraulic conductivity on the HMAC portion of the prototype barrier show that the asphalt layers easily meet the RCRA standard of 1 {times} 10{sup -7} cm/s. In-place measurements using a new field falling head technique show an average of 3.66 {times} 10{sup -8} cm/s, while cores taken from the north end of the prototype and measured in a laboratory setup averaged 1.29 {times} 10{sup -9} cm/s. Measurements made on the fluid applied asphalt membrane (polymer-modified asphalt) show an extremely low permeability of less than 1 {times} 10{sup -11} cm/s.

  7. Contract for Reinforced Concrete and Masonry Work on the Canteen and the Connecting Wing, and for the Completion of the Council Chamber in the Main Building

    E-Print Network [OSTI]

    1958-01-01

    Contract for Reinforced Concrete and Masonry Work on the Canteen and the Connecting Wing, and for the Completion of the Council Chamber in the Main Building

  8. The effect of asphalt deposition on recovery of oil by a pentane slug 

    E-Print Network [OSTI]

    Bhagia, Nanik S

    1965-01-01

    THE EFFECT OF ASPHALT DEPOSITION ON RECOVERY OF OIL BY A PENTANE SLUG NANIK S. BHAGIA THE EFFECT OF ASPHALT DEPOSITION ON RECOVERY OF OIL BY A PENTANE SLUG A Thesis By NANIK S. BHAGIA Submitted to the Graduate College of the Texas Ak...M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May, I 965 Major Subject: Petroleum Engineering THE EFFECT OF ASPHALT DEPOSITION ON RECOVERY OF OIL BY A PENTANE SLUG A Thesis By NANIK S. BHAGIA Approved...

  9. Feasibility evaluation of fired brick technology as a construction material and income-generating industry in Northern Ghana

    E-Print Network [OSTI]

    Bates, Caroline Nijole

    2014-01-01

    This work evaluates the potential to develop fired brick production in the Northern Region of Ghana. While several brick factories operate in southern Ghana, no factories are known to exist in northern Ghana, which remains ...

  10. Are ceramics and bricks reliable absolute geomagnetic intensity carriers? Juan Morales a,

    E-Print Network [OSTI]

    Cattin, Rodolphe

    Are ceramics and bricks reliable absolute geomagnetic intensity carriers? Juan Morales a, , Avto performed on the raw material (clay and paste) and on in situ prepared baked ceramics and bricks included indicate a mixture of multi- domain and a significant amount of single-domain grains. Ceramic pieces

  11. Influence of coarse aggregate size, shape and surface texture on rutting of hot mix asphalt concrete 

    E-Print Network [OSTI]

    Yeggoni, Mohan

    1993-01-01

    The objectives of this study were to: 1 ) Evaluate the influence of coarse aggregate shape and surface texture on deformation characteristics of asphalt concrete, 2) Characterize aggregate elongation, shape and texture using fractal dimensional...

  12. A Continuum Coupled Moisture-mechanical Constitutive Model for Asphalt Concrete 

    E-Print Network [OSTI]

    Shakiba, Maryam

    2013-12-09

    The presence and flow of moisture degrade engineering properties of asphalt concrete as part of thermodynamic, chemical, physical, and mechanical processes. This detrimental effect is referred to as moisture damage. The aim of this dissertation...

  13. Structural Characterization of Micromechanical Properties in Asphalt Using Atomic Force Microscopy 

    E-Print Network [OSTI]

    Allen, Robert Grover

    2012-02-14

    of the study was based on nano-indentation experiments performed within a micro-grid of asphalt phases in order to determine micromechanical properties such as stiffness, adhesion and elastic/plastic behavior. The change in microstructure...

  14. Development of a long-term durability specification for polymer modified asphalt 

    E-Print Network [OSTI]

    Woo, Won Jun

    2009-06-02

    In recent years an increased use of polymers has occurred to modify asphalt binders, mainly to decrease pavement rutting but also to improve binder failure strain in direct tension. Whereas all of these effects positively ...

  15. The morphology of polymer modified asphalt and its relationship to rheology and durability 

    E-Print Network [OSTI]

    Kraus, Zachary Rothman

    2008-10-10

    Polymers are added to asphalt binders primarily to stiffen the binder at higher temperatures and thus to protect the pavement against rutting at summertime temperatures early in the pavement's life. Also, it has been ...

  16. Analytical-Numerical Methodology to Measure Undamaged, Fracture and Healing Properties of Asphalt Mixtures 

    E-Print Network [OSTI]

    Koohi, Yasser 1980-

    2012-08-29

    Unlike in laboratory compacted asphalt mixtures, the distribution of viscoelastic properties in field layers is not uniform because of nonuniform air void distribution and aging. Therefore, characterization of field specimens ...

  17. Evaluation of healing in asphalt binders using dynamic shear rheometer and molecular modeling techniques 

    E-Print Network [OSTI]

    Bommavaram, Ramamohan Reddy

    2009-05-15

    A self-healing material has the inherent ability to partially reverse damage such as crack formation that might have occurred during its service. Significant evidence exists in the literature to indicate that asphalt binder ...

  18. Development of a Prediction Model for Skid Resistance of Asphalt Pavements 

    E-Print Network [OSTI]

    Rezaei, Arash

    2012-02-14

    The skid resistance of asphalt pavement is a major characteristic that determines the driving safety on a road, especially under wet surface conditions. Skid resistance is primarily a function of the microtexture and ...

  19. The effect of air blowing on the properties of rubber-modified asphalt binder 

    E-Print Network [OSTI]

    Bauer, Shauna Erin

    1997-01-01

    Recently, crumb rubber modifier or CRM has become prevalent in the construction of flexible pavements. This work addresses the phase separation that is commonly encountered with asphalt-rubber binders subjected to prolonged ...

  20. The effect of aging techniques on asphalt low-temperature properties 

    E-Print Network [OSTI]

    Knorr, Daniel Brainard

    2001-01-01

    This study includes three phases wherein the effects of various aging techniques on asphalt low-temperature properties were investigated. In addition, two other studies were conducted: air-blowing was investigated as a possible long-term aging test...

  1. Laboratory evaluation of crumb rubber asphalt concrete mixtures using the concepts of SMA mixtures 

    E-Print Network [OSTI]

    Rebala, Somasekhar Reddy

    1994-01-01

    the potential to significantly improve the resistance to fatigue and thermal cracking characteristics of asphalt concrete mixtures. The wet method appears to yield better performance regardless of the rubber particle size. Fine rubber would improve the fatigue...

  2. Automated Protocol for the Analysis of Dynamic Mechanical Analyzer Date from Fine Aggregate Asphalt Mixes 

    E-Print Network [OSTI]

    Cavalcanti De Sousa, Pedro

    2010-10-12

    Fatigue cracking and moisture damage are two important modes of distresses in asphalt pavements. Recently, the Dynamic Mechanical Analyzer (DMA) was used to characterize fatigue cracking and evaluate the effects of moisture damage on the Fine...

  3. Investigation of Rheological and Nano-Rheological Properties of Asphalt Binders 

    E-Print Network [OSTI]

    Kabir, Pooyan

    2014-08-04

    to the asphalt microstructure and nano-rheology. Furthermore, this study demonstrates the application of dynamic shear rheometer for macro scale and the application of atomic force microscopy imaging for nano-scale. Extraction of nano-scale engineering properties...

  4. Effect of airblowing on the durability of asphalt paving cements 

    E-Print Network [OSTI]

    Tolson, Ronald Geoffrey

    1962-01-01

    Investigated 90 Penetration Asphalts Sam le Mo. ASTN Penetration 77 F ? 100 s/5 secs. Original Viscosity Megapoi~es (S (7 F 5 x 10 sec 1-3 (SR)* 1-4 (AB)* 1-6 (B)* 87 88 87 0. 95 0. 98 0. 91 6-3 (SR) 6-4 (AB) 6-6 (B) 89 92 95 0. 71 0. 85.... 0 16. 0 20. 5 6-3 (SR) 6-4 (AB) 6-6 (8) 2. 0 2. 0 4. 0 3, 5 7. 5 5, 5 3. 5 5. 0 11-3 (SR) 11 4 (AB) 11-6 (B) 2. 0 2. 0 2. 0 6. 0 7. 0 6. 5 11. 0 10. 5 8. 5 9. 5 10. 0 9. 5 g, V P 1 ;ih, e& 7 1, ~a 4 / ~y&, ri 4...

  5. The Effects of Using Alkali-Silica Reaction Affected Recycled Concrete Aggregate in Hot Mix Asphalt 

    E-Print Network [OSTI]

    Geiger, Brian James

    2011-10-21

    through the Airfield Asphalt Pavement Technology Program. Finally, thanks to my mother and father for their encouragement and to my fianc?e for her patience and love. vii NOMENCLATURE AFB - Air Force Base AASHTO - American Association of State... RCA - RCA from Edwards AFB EDL - Electrical Double Layer EDS - Elemental Dispersive Spectroscopy ESEM - Environmental Scanning Electron Microscope HL RCA - RCA from Holloman AFB HMA - Hot Mix Asphalt K - Potassium KOH - Potassium Hydroxide Li...

  6. Evaluation of a stack: A concrete chimney with brick liner

    SciTech Connect (OSTI)

    Joshi, J.R.; Amin, J.A. [Westinghouse Savannah River Co., Aiken, SC (United States); Porthouse, R.A. [Chimney Consultants, West Lebanon, NH (United States)

    1995-12-31

    A 200 ft. tall stack, consisting of a concrete chimney with an independent acid proof brick liner built in the 1950`s, serving the Separations facility at the Savannah River Site (SRS), was evaluated for the performance category 3 (PC3) level of Natural Phenomena Hazards (NPH) effects. The inelastic energy absorption capacity of the concrete chimney was considered in the evaluation of the earthquake resistance, in particular, to compute the F{sub {mu}} factor. The calculated value of F{sub {mu}} exceeded 3.0, while the seismic demand for the PC3 level, using an F{sub {mu}} value of 1.5, was found to be less than the capacity of the concrete chimney. The capacity formulation of ACI 307 was modified to incorporate the effect of an after design opening on the tension side. There are considerable uncertainties in determining the earthquake resistance of the independent brick liner. The critical liner section, located at the bottom of the breeching opening, does not meet the current recommendations. A discussion is provided for the possible acceptable values for the ``Moment Reduction Factor``, R{sub w} or F{sub {mu}} for the liner. Comments are provided on the comparison of stack demands using response spectra (RS) versus time history (TH) analysis, with and without soil structure interaction (SSI) effects.

  7. Brick Walls for Black Holes in AdS/CFT

    E-Print Network [OSTI]

    Norihiro Iizuka; Seiji Terashima

    2015-01-01

    We study the 't Hooft's brick wall model for black holes in a holographic context. The brick wall model suggests that without an appropriate near horizon IR cut-off, the free energy of the probe fields show the divergence due to the large degenerate states near the horizons. After studying the universal nature of the divergence in various holographic setting in various dimensions, we interpret the nature of the divergence in a holographic context. The free energy divergence is due to the large degeneracy and continuity of the low energy spectrum in the boundary theory at the deconfinement phase. These divergence and continuity should be removed by finite N effects, which make the spectrum discrete even at the deconfinement phase. On the other hand, in the bulk, these degenerate states are localized near the horizon, and the universal divergence of these degenerate states implies that the naive counting of the degrees of freedom in bulk should be modified once we take into account the non-perturbative quantum gravity effects near the horizon. Depending on the microscopic degrees of freedom, the position, where the effective field theory description to count the states breaks down, has different Planck scale dependence. It also implies the difficulty to have an electron like gauge-singlet elementary field in the boundary theory Lagrangian. These singlet fields are at most composite fields, because they show divergent free energy, suggesting a positive power of N at the deconfinement phase.

  8. Seismic behaviour of mixed reinforced concreteSeismic behaviour of mixed reinforced concrete nreinforced masonr all str ct resunreinforced masonry wall structuresy

    E-Print Network [OSTI]

    Lenstra, Arjen K.

    Seismic behaviour of mixed reinforced concreteSeismic behaviour of mixed reinforced concrete and Structural Dynamics Laboratory Research IssueResearch Issue Seismic Behaviour of mixed reinforced concrete (RC) unreinforced masonrySeismic Behaviour of mixed reinforced concrete (RC)- unreinforced masonry

  9. Byggmeister Test Home: Cold Climate Multifamily Masonry Building Condition Assessment and Retrofit Analysis

    SciTech Connect (OSTI)

    Wytrykowska, H.; Ueno, K.; Van Straaten, R.

    2012-09-01

    This report describes a retrofit project undertaken by Building Science Corporation and partner Byggmeister on a multifamily brick row house located in Jamaica Plain, MA. This project studied the row house to determine the right combination of energy efficiency measures that are feasible, affordable, and suitable for this type of construction and acceptable to homeowners.

  10. Byggmeister Test Home. Cold Climate Multifamily Masonry Building Condition Assessment and Retrofit Analysis

    SciTech Connect (OSTI)

    Wytrykowska, H.; Ueno, K.; Van Straaten, R.

    2012-09-01

    This report describes a retrofit project undertaken by Building Science Corporation and partner Byggmeister on a multifamily brick row house located in Jamaica Plain, MA. This project studied the row house to determine the right combination of energy efficiency measures that are feasible, affordable, and suitable for this type of construction and acceptable to homeowners.

  11. Application of Metagenomics for Identification of Novel Petroleum Hydrocarbon Degrading Enzymes in Natural Asphalts from the Rancho La Brea Tar Pits

    E-Print Network [OSTI]

    Baquiran, Jean-Paul Mendoza

    2010-01-01

    growth on natural asphalts and heavy oil compounds. A majorand the origin of heavy oil. Nature, 426, 344-352. HEITKAMP,mainly of asphalts and heavy oils, which have saturated into

  12. Development of statistical wet weather model to evaluate frictional properties at the pavement-tire interface on hot mix asphalt concrete 

    E-Print Network [OSTI]

    Bedi, Harpreet

    2001-01-01

    Skid resistance on wet pavements is influenced by friction at the tire-pavement interface as well as overall hot mix asphalt (HMA) performance. It is important to control aggregate, asphalt, and mix properties to achieve desirable frictional...

  13. Application of Metagenomics for Identification of Novel Petroleum Hydrocarbon Degrading Enzymes in Natural Asphalts from the Rancho La Brea Tar Pits

    E-Print Network [OSTI]

    Baquiran, Jean-Paul Mendoza

    2010-01-01

    and the origin of heavy oil. Nature, 426, 344-352. HEITKAMP,natural asphalts and heavy oil compounds. A major questionmainly of asphalts and heavy oils, which have saturated into

  14. Porous Asphalt Pavement for Stormwater Management The UNH Stormwater Center Web: www.unh.edu/erg/cstev/

    E-Print Network [OSTI]

    Porous Asphalt Pavement for Stormwater Management The UNH Stormwater Center Web: www.unh.edu/erg/cstev/ Benefits and Uses Porous Asphalt can be used in replace of traditional stormwater management measures given Quality Treatment 3. Recharges Groundwater to Underlying Aquifers 4. Allows for Reduction of Stormwater

  15. Seismic Response Of Masonry Plane Walls: A Numerical Study On Spandrel Strength

    SciTech Connect (OSTI)

    Betti, Michele; Galano, Luciano; Vignoli, Andrea [Department of Civil and Environmental Engineering (DICeA) University of Florence, Via di S. Marta 3, I-50139, Florence (Italy)

    2008-07-08

    The paper reports the results of a numerical investigation on masonry walls subjected to in-plane seismic loads. This research aims to verify the formulae of shear and flexural strength of masonry spandrels which are given in the recent Italian Standards. Seismic pushover analyses have been carried out using finite element models of unreinforced walls and strengthened walls introducing reinforced concrete (RC) beams at the floor levels. Two typologies of walls have been considered distinguished for the height to length ratio h/l of the spandrels: a) short beams (h/l = 1.33) and b) slender beams (h/l = 0.5). Results obtained for the unreinforced and the strengthened walls are compared with equations for shear and flexural strength provided in Standards [1]. The numerical analyses show that the reliability of these equations is at least questionable especially for the prediction of the flexural strength. In the cases in which the axial force has not been determined by the structural analysis, Standards seems to overestimate the flexural strength of short spandrels both for the unreinforced and the strengthened wall.

  16. Asphalt emulsion radon barrier systems for uranium mill tailings: an overview of the technology

    SciTech Connect (OSTI)

    Baker, E.G.; Hartley, J.N.; Freeman, H.D.; Gates, T.E.; Nelson, D.A.; Dunning, R.L.

    1984-03-01

    Pacific Northwest Laboratory (PNL), under contract to the US Department of Energy (DOE) Uranium Mill Tailings Remedial Action Project (UMTRAP) office, has developed an asphalt emulsion cover system to reduce the release of radon from uranium mill tailings. The system has been field tested at Grand Junction, Colorado. Results from laboratory and field tests indicate that this system is effective in reducing radon release to near-background levels (<2.5 pCi m/sup -2/s/sup -1/) and has the properties required for long-term effectiveness and stability. Engineering specifications have been developed, and analysis indicates that asphalt emulsion covers are cost-competitive with other cover systems. This report summarizes the technology for asphalt emulsion radon barrier systems. 59 references, 45 figures, 36 tables.

  17. Asphalt and Asphaltic Concrete

    E-Print Network [OSTI]

    Young, A. R.

    1914-05-01

    of Materials in Curb 36 Proportions Determined by Weight 52 Propo sal 16 Proposal, Plans & Specifications, part of Contract 71 Protection from Sun 37 Protection of Base 44 Protection of New Work 21 Protection of Public 21 Provision for Traffic... bonds at the option of the Mayor and Board of Com- missioners. 29. In performing the work done under any contract, of which these specifications may be a part, the con- tractor will be governed by the laws of the State of Kansas, and the ordinances...

  18. The effects of lime and amines on the aging of asphalts and recycling agents 

    E-Print Network [OSTI]

    Wisneski, Mary Luvola

    1995-01-01

    , and AAF-F3. The experiments were designed and performed to study the oxidation rates, the hardening rates, the hardening susceptibilities, and if possible, the prediction of the critical times for pavement failure due to the hardening of the asphalt...

  19. 1 INTRODUCTION Asphalt mixtures are composite materials that consist of solid particles, viscous binder/fluid

    E-Print Network [OSTI]

    Luding, Stefan

    binder/fluid (bitumen) and pores filled with air. When considering asphalt we should distinguish in the skeleton move close to each other and air in the voids is squeezed out. The fluid in the mixture (that can of the bitumen layer between the particles are only partly involved in this kind of approach. The discrete

  20. Creep Compliance Analysis Technique for the Flattened Indirect Tension Test of Asphalt Concrete

    E-Print Network [OSTI]

    Paulino, Glaucio H.

    Creep Compliance Analysis Technique for the Flattened Indirect Tension Test of Asphalt Concrete: ­ Cored Sample (Cylindrical) Indirect tensile testing (IDT) (Strength/Creep) ­ AASHTO T-322 Damage under and Flattened IDT · 1000-sec creep tests on three replicates · 0, -10, and -20 deg. C · Displacement

  1. Mirzahosseini et. al. ANN-Based Prediction Model for Rutting Propensity of Asphalt Mixtures1

    E-Print Network [OSTI]

    Fernandez, Thomas

    in a repeated load permanent deformation test.21 Dynamic creep test is one of the best tools for assessing of load cycles is the most23 important output of the dynamic creep test. This curve includes primary based on volumetric proportioning of the asphalt mixture. This method does16 not include any direct test

  2. Low-Btu coal gasification in the United States: company topical. [Brick producers

    SciTech Connect (OSTI)

    Boesch, L.P.; Hylton, B.G.; Bhatt, C.S.

    1983-07-01

    Hazelton and other brick producers have proved the reliability of the commercial size Wellman-Galusha gasifier. For this energy intensive business, gas cost is the major portion of the product cost. Costs required Webster/Hazelton to go back to the old, reliable alternative energy of low Btu gasification when the natural gas supply started to be curtailed and prices escalated. Although anthracite coal prices have skyrocketed from $34/ton (1979) to over $71.50/ton (1981) because of high demand (local as well as export) and rising labor costs, the delivered natural gas cost, which reached $3.90 to 4.20/million Btu in the Hazelton area during 1981, has allowed the producer gas from the gasifier at Webster Brick to remain competitive. The low Btu gas cost (at the escalated coal price) is estimated to be $4/million Btu. In addition to producing gas that is cost competitive with natural gas at the Webster Brick Hazelton plant, Webster has the security of knowing that its gas supply will be constant. Improvements in brick business and projected deregulation of the natural gas price may yield additional, attractive cost benefits to Webster Brick through the use of low Btu gas from these gasifiers. Also, use of hot raw gas (that requires no tar or sulfur removal) keeps the overall process efficiency high. 25 references, 47 figures, 14 tables.

  3. A comparison of the fracture properties of conventional and polymer-modified two-layer asphalt concrete overlay systems 

    E-Print Network [OSTI]

    Reddy, Praveena Gutha

    1996-01-01

    The problem of reflection cracking through the conventional asphalt concrete overlays has increased the need to find new materials which could resist cracking or fracture more effectively. It is for this reason that polymers (Styrelo are added...

  4. Fatigue resistance of hot-mix asphalt concrete (HMAC) mixtures using the calibrated mechanistic with surface energy (CMSE) measurements approach 

    E-Print Network [OSTI]

    Ofori-Abebresse, Edward Kwame

    2006-10-30

    Fatigue cracking is one of the fundamental distresses that occur in the life of a Hot Mix Asphalt Concrete (HMAC) pavement. This load induced distress leads to structural collapse of the entire pavement ultimately and can ...

  5. Contributions to an Improved Oxygen and Thermal Transport Model and Development of Fatigue Analysis Software for Asphalt Pavements 

    E-Print Network [OSTI]

    Jin, Xin

    2012-02-14

    Fatigue cracking is one primary distress in asphalt pavements, dominant especially in later years of service. Prediction of mixture fatigue resistance is critical for various applications, e.g., pavement design and ...

  6. A Model for the Nonlinear Mechanical Behavior of Asphalt Binders and its Application in Prediction of Rutting Susceptibility 

    E-Print Network [OSTI]

    Srinivasa Parthasarathy, Atul

    2013-04-30

    The mechanical behavior of asphalt binders is nonlinear. The binders exhibit shear thinning/thickening behavior in steady shear tests and non-proportational behavior in other standard viscoelastic tests such as creep-recovery ...

  7. Safety assessment of historical masonry churches based on pre-assigned kinematic limit analysis, FE limit and pushover analyses

    SciTech Connect (OSTI)

    Milani, Gabriele Valente, Marco

    2014-10-06

    This study presents some results of a comprehensive numerical analysis on three masonry churches damaged by the recent Emilia-Romagna (Italy) seismic events occurred in May 2012. The numerical study comprises: (a) pushover analyses conducted with a commercial code, standard nonlinear material models and two different horizontal load distributions; (b) FE kinematic limit analyses performed using a non-commercial software based on a preliminary homogenization of the masonry materials and a subsequent limit analysis with triangular elements and interfaces; (c) kinematic limit analyses conducted in agreement with the Italian code and based on the a-priori assumption of preassigned failure mechanisms, where the masonry material is considered unable to withstand tensile stresses. All models are capable of giving information on the active failure mechanism and the base shear at failure, which, if properly made non-dimensional with the weight of the structure, gives also an indication of the horizontal peak ground acceleration causing the collapse of the church. The results obtained from all three models indicate that the collapse is usually due to the activation of partial mechanisms (apse, façade, lateral walls, etc.). Moreover the horizontal peak ground acceleration associated to the collapse is largely lower than that required in that seismic zone by the Italian code for ordinary buildings. These outcomes highlight that structural upgrading interventions would be extremely beneficial for the considerable reduction of the seismic vulnerability of such kind of historical structures.

  8. A study of substitution solvents in asphalt fume extraction and the effects of heating duration and temperature 

    E-Print Network [OSTI]

    Curry, Noel Thomas

    1981-01-01

    may be used as substitute solvents for the solvent extraction analytical method for asphalt furres proposed by NlnSH and currently in use by OSHA. Benzene is known to orovide IC0% effic- 1 iency in asphalt fume extraction. The results..., rather than the solvents' effic- iency loss, was responsible for the differences. The importance of the data lies in the fact that the other two test solvents exhibited a consiatency equal to that of benzene. 'Ahile the exact coefficient of any...

  9. Practical 2: Getting Started with BrickPi; Accurate Robot Motion Andrew Davison and Stefan Leutenegger

    E-Print Network [OSTI]

    Davison, Andrew

    and login IDs of the group members, and give you a box which contains a Raspberry Pi + BrickPi kit which you to assemble and use a Raspberry Pi based robotics kit; and then examine how wheeled robots move the following items: · Raspberry Pi and Brickpi: the computer and an interface board to Lego Mindstorms sensors

  10. Summary of Surface Swipe Sampling for Beryllium on Lead Bricks and Shielding

    SciTech Connect (OSTI)

    Paik, S Y; Barron, D A

    2011-08-03

    Approximately 25,000 lbs of lead bricks at Site 300 were assessed by the Site 300 Industrial Hygienis tand Health Physicist for potential contamination of beryllium and radiation for reuse. These lead bricks and shielding had been used as shielding material during explosives tests that included beryllium and depleted uranium. Based on surface swipe sampling that was performed between July 26 and October 11, 2010, specifically for beryllium, the use of a spray encapsulant was found to be an effective means to limit removable surface contamination to levels below the DOE release limit for beryllium, which is 0.2 mcg/100 cm{sup 2}. All the surface swipe sampling data for beryllium and a timeline of when the samples were collected (and a brief description) are presented in this report. On December 15, 2010, the lead bricks and shielding were surveyed with an ion chamber and indicated dose rates less than 0.05 mrem per hour on contact. This represents a dose rate consistent with natural background. An additional suevey was performed on February 8, 2011, using a GM survey instrument to estimate total activity on the lead bricks and shielding, confirming safe levels of radioactivity. The vendor is licensed to possess and work with radioactive material.

  11. A utility evaluation of nondestructive testing devices used on asphalt concrete pavements 

    E-Print Network [OSTI]

    Stoffels, Shelley Marie

    1986-01-01

    defined . Weighting factors are developed using the Churchman-Ackoff technique. The analysis is performed under uncertainty using a beta probability distribution. The calculations are performed using a computer program. The results are expressed... in terms of an expected value and a 95f confidence interval. Fifteen nondestructive testing devices are evaluated for use for both project-level design and network-level planning on asphalt concrete pavements. These devices are described in detail...

  12. Chip Seals for Asphalt Concrete Pavements: A Proposed Emulsion Residue Specification and Existing Pavement Texture Evaluation 

    E-Print Network [OSTI]

    Hoyt, Denise

    2012-07-16

    of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved by: Chair of Committee, Amy Epps Martin Committee Members, Robert L. Lytton Charles Glover Head of Department, John...&M University Chair of Advisory Committee: Dr. Amy Epps Martin Chip seals are a pavement surface treatment used for maintaining asphalt concrete pavements. National Cooperative Highway Research Program (NCHRP) Project 14-17 was performed to produce a...

  13. Finite element analyses of continuous filament ties for masonry applications : final report for the Arquin Corporation.

    SciTech Connect (OSTI)

    Quinones, Armando, Sr. (Arquin Corporation, La Luz, NM); Bibeau, Tiffany A.; Ho, Clifford Kuofei

    2008-08-01

    Finite-element analyses were performed to simulate the response of a hypothetical vertical masonry wall subject to different lateral loads with and without continuous horizontal filament ties laid between rows of concrete blocks. A static loading analysis and cost comparison were also performed to evaluate optimal materials and designs for the spacers affixed to the filaments. Results showed that polypropylene, ABS, and polyethylene (high density) were suitable materials for the spacers based on performance and cost, and the short T-spacer design was optimal based on its performance and functionality. Simulations of vertical walls subject to static loads representing 100 mph winds (0.2 psi) and a seismic event (0.66 psi) showed that the simulated walls performed similarly and adequately when subject to these loads with and without the ties. Additional simulations and tests are required to assess the performance of actual walls with and without the ties under greater loads and more realistic conditions (e.g., cracks, non-linear response).

  14. New Tool Quantitatively Maps Minority-Carrier Lifetime of Multicrystalline Silicon Bricks (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-11-01

    NREL's new imaging tool could provide manufacturers with insight on their processes. Scientists at the National Renewable Energy Laboratory (NREL) have used capabilities within the Process Development and Integration Laboratory (PDIL) to generate quantitative minority-carrier lifetime maps of multicrystalline silicon (mc-Si) bricks. This feat has been accomplished by using the PDIL's photoluminescence (PL) imaging system in conjunction with transient lifetime measurements obtained using a custom NREL-designed resonance-coupled photoconductive decay (RCPCD) system. PL imaging can obtain rapid high-resolution images that provide a qualitative assessment of the material lifetime-with the lifetime proportional to the pixel intensity. In contrast, the RCPCD technique provides a fast quantitative measure of the lifetime with a lower resolution and penetrates millimeters into the mc-Si brick, providing information on bulk lifetimes and material quality. This technique contrasts with commercially available minority-carrier lifetime mapping systems that use microwave conductivity measurements. Such measurements are dominated by surface recombination and lack information on the material quality within the bulk of the brick. By combining these two complementary techniques, we obtain high-resolution lifetime maps at very fast data acquisition times-attributes necessary for a production-based diagnostic tool. These bulk lifetime measurements provide manufacturers with invaluable feedback on their silicon ingot casting processes. NREL has been applying the PL images of lifetime in mc-Si bricks in collaboration with a U.S. photovoltaic industry partner through Recovery Act Funded Project ARRA T24. NREL developed a new tool to quantitatively map minority-carrier lifetime of multicrystalline silicon bricks by using photoluminescence imaging in conjunction with resonance-coupled photoconductive decay measurements. Researchers are not hindered by surface recombination and can look deeper into the material to map bulk lifetimes. The tool is being applied to silicon bricks in a project collaborating with a U.S. photovoltaic industry partner. Photovoltaic manufacturers can use the NREL tool to obtain valuable feedback on their silicon ingot casting processes.

  15. Experimental Study on Shear Fatigue Behavior and Stiffness Performance of Warm Mix Asphalt by adding Synthetic Wax

    E-Print Network [OSTI]

    Petit, Christophe; Canestrari, Francesco; Pannunzio, Valter; Virgili, Amadeo

    2012-01-01

    Synthetic waxes produced by standard and registered processes may be used to manufacture Warm Mix Asphalt (WMA), which is a modified asphalt concrete produced, applied and compacted at temperatures below those typically required. This feature leads to environmental benefits, such as reduced energy consumption, gas and fume emissions, as well as to economic/operational advantages, such as lower production costs and greater hauling distances for extended construction seasons with tighter schedules. The present article serves to compare the mechanical performance of a WMA produced by adding synthetic wax with a traditional Hot Mix Asphalt (HMA) specimen, in terms of shear fatigue response and both complex and stiffness moduli. The experimental results and related modeling work demonstrate that adding synthetic wax into the WMA composition does not hinder either the destructive or non-destructive performance of an HMA, and this finding is corroborated by respectively measuring fatigue life and stiffness.

  16. Experimental Study on Shear Fatigue Behavior and Stiffness Performance of Warm Mix Asphalt by adding Synthetic Wax

    E-Print Network [OSTI]

    Christophe Petit; Anne Millien; Francesco Canestrari; Valter Pannunzio; Amadeo Virgili

    2012-03-13

    Synthetic waxes produced by standard and registered processes may be used to manufacture Warm Mix Asphalt (WMA), which is a modified asphalt concrete produced, applied and compacted at temperatures below those typically required. This feature leads to environmental benefits, such as reduced energy consumption, gas and fume emissions, as well as to economic/operational advantages, such as lower production costs and greater hauling distances for extended construction seasons with tighter schedules. The present article serves to compare the mechanical performance of a WMA produced by adding synthetic wax with a traditional Hot Mix Asphalt (HMA) specimen, in terms of shear fatigue response and both complex and stiffness moduli. The experimental results and related modeling work demonstrate that adding synthetic wax into the WMA composition does not hinder either the destructive or non-destructive performance of an HMA, and this finding is corroborated by respectively measuring fatigue life and stiffness.

  17. Entropy of Warped Taub-NUT AdS Black String via the Brick Wall Method

    E-Print Network [OSTI]

    Chong Oh Lee

    2015-03-10

    When we consider five-dimensional warped Taub-NUT/bolt AdS black string with minimally coupled massive scalar field, we calculate entropies by using the brick wall method. It is found that they are proportional to being quadratically divergent in a cutoff parameter. In particular, we show that the entropy of warped Taub-NUT AdS black string holds for an area law in the bulk as well as on the brane.

  18. Development of a Crush and Mix Machine for Composite Brick Fabrication

    SciTech Connect (OSTI)

    Sothea, Kruy; Fazli, Nik; Hamdi, M. [Department of Design and Manufacture Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur (Malaysia); Aoyama, Hideki [Department of System Design Engineering, Keio University (Japan)

    2011-01-17

    Currently, people are more and more concerned about the environmental protection. Municipal solid wastes (MSW) have bad effect on the environment and also human health. In addition, the amounts of municipal solid wastes are increasing due to the economic development, density of population, especially in the developing countries and they are recycled in a little percentage. To address this problem, the composite brick forming machine was designed and developed to make brick using combination of MSW and mortar. The machine consists of two independent parts, crusher and mixer part, and molding part. This paper explores the design of crusher and mixer part. The crusher has ability to cut MSW such as wood, paper and plastic into small size. There are two mixers; one is used for making mortar and other use for making slurry. FEA analyses were carried out to address the suitable strength of the critical parts of the crusher which ensures that crusher can run properly with high efficiency. The experimentation of the crusher shows that it has high performance for cutting MSW. The mixers also work very well in high efficiency. The results of composite brick testing have been shown that ability of the machine can performance well. This is the innovation of crush and mix machine which is portable and economic by using MSW in replacement of sand.

  19. Air-conditioning electricity savings and demand reductions from exterior masonry wall insulation applied to Arizona residences

    SciTech Connect (OSTI)

    Ternes, M.P.; Wilkes, K.E.

    1993-06-01

    A field test involving eight single-family houses was performed during the summer of 1991 in Scottsdale, Arizona to evaluate the potential of reducing air-conditioning electricity consumption and demand by insulating their exterior masonry walls. Total per house costs to perform the installations ranged from $3610 to $4550. The average annual savings was estimated to be 491 kWh, or 9% of pre-retrofit consumption. Peak demands without and with insulation on the hottest day of an average weather year for Phoenix were estimated to be 4.26 and 3.61 kill, for a demand reduction of 0.65 kill (15%). We conclude that exterior masonry wall insulation reduces air-conditioning electricity consumption and peak demand in hot, dry climates similar to that of Phoenix. Peak demand reductions are a primary benefit, making the retrofit worthy of consideration in electric utility conservation programs. Economics can be attractive from a consumer viewpoint if considered within a renovation or home improvement program.

  20. Air-conditioning electricity savings and demand reductions from exterior masonry wall insulation applied to Arizona residences

    SciTech Connect (OSTI)

    Ternes, M.P.; Wilkes, K.E.

    1993-01-01

    A field test involving eight single-family houses was performed during the summer of 1991 in Scottsdale, Arizona to evaluate the potential of reducing air-conditioning electricity consumption and demand by insulating their exterior masonry walls. Total per house costs to perform the installations ranged from $3610 to $4550. The average annual savings was estimated to be 491 kWh, or 9% of pre-retrofit consumption. Peak demands without and with insulation on the hottest day of an average weather year for Phoenix were estimated to be 4.26 and 3.61 kill, for a demand reduction of 0.65 kill (15%). We conclude that exterior masonry wall insulation reduces air-conditioning electricity consumption and peak demand in hot, dry climates similar to that of Phoenix. Peak demand reductions are a primary benefit, making the retrofit worthy of consideration in electric utility conservation programs. Economics can be attractive from a consumer viewpoint if considered within a renovation or home improvement program.

  1. Reconstruction of fault slip of the September 21st, 1999, Taiwan earthquake in the asphalted surface of a car park,

    E-Print Network [OSTI]

    Lee, Jian-Cheng

    surface of a car park, and co-seismic slip partitioning Jacques Angeliera,*, Jian-Cheng Leeb , Hao Received 27 May 2001; accepted 5 March 2002 Abstract The deformation in the asphalted surface of a car park), the surface traces of the June 21st, 2000, earthquake (Mw 6.4) in southern Iceland, were analysed in a car

  2. Important Tenders and Contracts to be Placed in the Near Future - Concrete and Masonry Construction Work for the Control Station and Part of the Annex Laboratory Wing and the Corridor which Connects them to the Main SC Building

    E-Print Network [OSTI]

    European Organization for Nuclear Research

    1955-01-01

    Important Tenders and Contracts to be Placed in the Near Future - Concrete and Masonry Construction Work for the Control Station and Part of the Annex Laboratory Wing and the Corridor which Connects them to the Main SC Building

  3. Excess Foundry Sand Characterization and Experimental Investigation in Controlled Low-Strength Material and Hot-Mixing Asphalt

    SciTech Connect (OSTI)

    Pauul J. Tikalsky

    2004-10-31

    This report provides technical data regarding the reuse of excess foundry sand. The report addresses three topics: (1) a statistically sound evaluation of the characterization of foundry sand, (2) a laboratory investigation to qualify excess foundry sand as a major component in controlled low-strength material (CLSM), and (3) the identification of the best methods for using foundry sand as a replacement for natural aggregates for construction purposes, specifically in asphalt paving materials. The survival analysis statistical technique was used to characterize foundry sand over a full spectrum of general chemical parameters, metallic elements, and organic compounds regarding bulk analysis and leachate characterization. Not limited to characterization and environmental impact, foundry sand was evaluated by factor analyses, which contributes to proper selection of factor and maximization of the reuse marketplace for foundry sand. Regarding the integration of foundry sand into CLSM, excavatable CLSM and structural CLSM containing different types of excess foundry sands were investigated through laboratory experiments. Foundry sand was approved to constitute a major component in CLSM. Regarding the integration of foundry sand into asphalt paving materials, the optimum asphalt content was determined for each mixture, as well as the bulk density, maximum density, asphalt absorption, and air voids at N{sub ini}, N{sub des}, and N{sub max}. It was found that foundry sands can be used as an aggregate in hot-mix asphalt production, but each sand should be evaluated individually. Foundry sands tend to lower the strength of mixtures and also may make them more susceptible to moisture damage. Finally, traditional anti-stripping additives may decrease the moisture sensitivity of a mixture containing foundry sand, but not to the level allowed by most highway agencies.

  4. Excess Foundry Sand Characterization and Experimental Investigation in Controlled Low-Strength Material and Hot-Mixing Asphalt

    SciTech Connect (OSTI)

    Paul J. Tikalsky, Hussain U. Bahia, An Deng and Thomas Snyder

    2004-10-15

    This report provides technical data regarding the reuse of excess foundry sand. The report addresses three topics: a statistically sound evaluation of the characterization of foundry sand, a laboratory investigation to qualify excess foundry sand as a major component in controlled low-strength material (CLSM), and the identification of the best methods for using foundry sand as a replacement for natural aggregates for construction purposes, specifically in asphalt paving materials. The survival analysis statistical technique was used to characterize foundry sand over a full spectrum of general chemical parameters, metallic elements, and organic compounds regarding bulk analysis and leachate characterization. Not limited to characterization and environmental impact, foundry sand was evaluated by factor analyses, which contributes to proper selection of factor and maximization of the reuse marketplace for foundry sand. Regarding the integration of foundry sand into CLSM, excavatable CLSM and structural CLSM containing different types of excess foundry sands were investigated through laboratory experiments. Foundry sand was approved to constitute a major component in CLSM. Regarding the integration of foundry sand into asphalt paving materials, the optimum asphalt content was determined for each mixture, as well as the bulk density, maximum density, asphalt absorption, and air voids at Nini, Ndes, and Nmax. It was found that foundry sands can be used as an aggregate in hot-mix asphalt production, but each sand should be evaluated individually. Foundry sands tend to lower the strength of mixtures and also may make them more susceptible to moisture damage. Finally, traditional anti-stripping additives may decrease the moisture sensitivity of a mixture containing foundry sand, but not to the level allowed by most highway agencies.

  5. Building America Whole-House Solutions for Existing Homes: 56th and Walnut: A Philly Gut Rehab Development

    Broader source: Energy.gov [DOE]

    In this project, CPM partnered with the Consortium for Advanced Residential Buildings team to renovate 32 units in 11 three-story, historic, brick masonry urban buildings.

  6. Comparison of fatigue analysis approaches for predicting fatigue lives of hot-mix asphalt concrete (HMAC) mixtures 

    E-Print Network [OSTI]

    Walubita, Lubinda F.

    2006-08-16

    -1 COMPARISON OF FATIGUE ANALYSIS APPROACHES FOR PREDICTING FATIGUE LIVES OF HOT-MIX ASPHALT CONCRETE (HMAC) MIXTURES A Dissertation by LUBINDA F. WALUBITA Submitted to the Office of Graduate Studies of Texas A&M University in partial... Dissertation by LUBINDA F. WALUBITA Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved by: Chair of Committee, Amy Epps Martin...

  7. Finite element analyses of continuous filament ties for masonry applications:final report for the Arquin Corporation.

    SciTech Connect (OSTI)

    Quinones, Armando (Arquin Corporation, La Luz, NM); Bibeau, Tiffany A.; Ho, Clifford Kuofei

    2006-06-01

    Finite-element analyses were performed to simulate the response of a hypothetical masonry shear wall with and without continuous filament ties to various lateral loads. The loads represented three different scenarios: (1) 100 mph wind, (2) explosive attack, and (3) an earthquake. In addition, a static loading analysis and cost comparison were performed to evaluate optimal materials and designs for the spacers affixed to the filaments. Results showed that polypropylene, ABS, and polyethylene (high density) were suitable materials for the spacers based on performance and cost, and the short T-spacer design was optimal based on its performance and functionality. Results of the shear-wall loading simulations revealed that simulated walls with the continuous filament ties yielded factors of safety that were at least ten times greater than those without the ties. In the explosive attack simulation (100 psi), the simulated wall without the ties failed (minimum factor of safety was less than one), but the simulated wall with the ties yielded a minimum factor of safety greater than one. Simulations of the walls subject to lateral loads caused by 100 mph winds (0.2 psi) and seismic events with a peak ground acceleration of 1 ''g'' (0.66 psi) yielded no failures with or without the ties. Simulations of wall displacement during the seismic scenarios showed that the wall with the ties resulted in a maximum displacement that was 20% less than the wall without the ties.

  8. Establishment of a laboratory mix-design method for open-graded friction courses using sulfur-extended asphalt (SEA) binders 

    E-Print Network [OSTI]

    Ho, Kee-Kwong

    1981-01-01

    indicated that mixtures of sand, asphalt and sulfur exhibited somewhat h1gher Marshall stabil1ties, with a slightly greater water sensitiv1ty, than convent1onal asphalt1c concrete mixtures. 23 Develo ment of SEA-DGFC A review of the literature... temperature of sulfur (i. e. , 240'F (116'C)1. It was also suggested that further study should examine the reasons for the improved permeab1lity in the SEA-OGFC systems. Future work should also include the verificat1on of the proposed mix-des1gn procedure...

  9. Experimental Study on Geocell-Reinforced Flexible Pavements with Recycled Asphalt Pavement (RAP) Bases under Cyclic Loading

    E-Print Network [OSTI]

    Acharya, B. S.

    2011-12-31

    and Characteristics 27 3.3 Asphalt Concrete and Characteristics 29 3.4 Geocell 29 3.5 Geotextile 31 3.6 Test Devices and Instrumentation 32 3.6.1 Earth Pressure Cells 33 3.6.2 Strain Gauge 34 3.6.3 Displacement Transducer and Tell Tales 36 3.6.4 Data....5 The bundled NPA Geocell used in this research 30 Figure 3.6 Non-woven geotextile used in this research 32 Figure 3.7 Earth pressure cell on the top of the subgrade 34 Figure 3.8 Strain gauge affixed on Geocell...

  10. A novel technique for the production of cool colored concrete tile and asphalt shingle roofing products

    SciTech Connect (OSTI)

    Levinson, Ronnen; Akbari, Hashem; Berdahl, Paul; Wood, Kurt; Skilton, Wayne; Petersheim, Jerry

    2009-11-20

    The widespread use of solar-reflective roofing materials can save energy, mitigate urban heat islands and slow global warming by cooling the roughly 20% of the urban surface that is roofed. In this study we created prototype solar-reflective nonwhite concrete tile and asphalt shingle roofing materials using a two-layer spray coating process intended to maximize both solar reflectance and factory-line throughput. Each layer is a thin, quick-drying, pigmented latex paint based on either acrylic or a poly(vinylidene fluoride)/acrylic blend. The first layer is a titanium dioxide rutile white basecoat that increases the solar reflectance of a gray-cement concrete tile from 0.18 to 0.79, and that of a shingle surfaced with bare granules from 0.06 to 0.62. The second layer is a 'cool' color topcoat with weak near-infrared (NIR) absorption and/or strong NIR backscattering. Each layer dries within seconds, potentially allowing a factory line to pass first under the white spray, then under the color spray. We combined a white basecoat with monocolor topcoats in various shades of red, brown, green and blue to prepare 24 cool color prototype tiles and 24 cool color prototypes shingles. The solar reflectances of the tiles ranged from 0.26 (dark brown; CIELAB lightness value L* = 29) to 0.57 (light green; L* = 76); those of the shingles ranged from 0.18 (dark brown; L* = 26) to 0.34 (light green; L* = 68). Over half of the tiles had a solar reflectance of at least 0.40, and over half of the shingles had a solar reflectance of at least 0.25.

  11. Cooling energy performance and installation of a retrofitted exterior insulation and finish system on masonry residences in the southwestern United States

    SciTech Connect (OSTI)

    Ternes, M.P.; Wilkes, K.E.; McLain, H.A.

    1992-12-31

    A field test involving eight single-family houses was performed during the summer of 1991 in Scottsdale, Arizona to evaluate the potential of reducing air-conditioning electricity consumption and demand by insulating their exterior masonry walls using a site-fabricated (non-commercially available) insulation and finish system. The exterior insulation system developed for the field test was easily performed and should result in a durable installation. Total per house costs to perform the installations ranged from $3610 to $4550. The average annual savings was estimated to be 491 kWh, or 9% of pre-retrofit consumption. Peak demands without and with insulation on the hottest day of an average weather year for Phoenix were estimated to be 4.26 and 3.61 kill, for a demand reduction of 0.65 kill (15%). We conclude that exterior masonry wall insulation offers the greatest potential for air-conditioning electricity savings and peak demand reductions in hot, dry climates similar to that of Phoenix. Retrofit economics need to be thoroughly examined from societal, utility, and consumer perspectives and must consider other benefits such as space-heating energy savings and improved house value.

  12. Steinway & Sons Upgrades Its Turn-of-the-Century Brick Kilns to a Quick-Dry Partial Vacuum System 

    E-Print Network [OSTI]

    Bossis, R.

    2015-01-01

    Street, Suite 350, North Andover, MA 01845 With offices in: CA, CT, ME, NY, OR, TX, VT www.ers-inc.com PRESENTATION BY RYAN BOSSIS June 3, 2015 Steinway & Sons Upgrades Its Turn-of-the-Century Brick Kilns to a Quick-Dry Partial Vacuum System ESL...-IE-15-06-17 Proceedings of the Thrity-Seventh Industrial Energy Technology Conference New Orleans, LA. June 2-4, 2015 ?History of Steinway & Sons and manufacturing process ?Current wood-drying process ?Data collection and measurement of existing kiln’s...

  13. Asphalt overlay design methods for rigid pavements considering rutting, reflection cracking, and fatigue cracking. Research report September 1996--August 1997

    SciTech Connect (OSTI)

    Cho, Y.H.; Liu, C.; Dossey, T.; McCullough, B.F.

    1998-10-01

    An asphalt concrete pavement (ACP) overlay over a rigid pavement represents a viable rehabilitation strategy. It can provide good serviceability at an initial construction cost that is substantially less than that of a rigid overlay rehabilitation. In addition, ACP overlays require less construction time, which can reduce user costs during construction. However, it may not be the most economical solution for long-term rehabilitation. Because of their relatively short service life, ACP overlays may require maintenance sooner than rigid overlays. And one of the more critical distresses that effectively determine the life span of the structure is reflection cracking. This report investigates alternative strategies that seek to prevent reflection cracking on ACP overlays.

  14. Utilize Cementitious High Carbon Fly Ash (CHCFA) to Stabilize Cold In-Place Recycled (CIR) Asphalt Pavement as Base Coarse

    SciTech Connect (OSTI)

    Wen, Haifang; Li, Xiaojun; Edil, Tuncer; O'Donnell, Jonathan; Danda, Swapna

    2011-02-05

    The purpose of this study was to evaluate the performance of cementitious high carbon fly ash (CHCFA) stabilized recycled asphalt pavement as a base course material in a real world setting. Three test road cells were built at MnROAD facility in Minnesota. These cells have the same asphalt surface layers, subbases, and subgrades, but three different base courses: conventional crushed aggregates, untreated recycled pavement materials (RPM), and CHCFA stabilized RPM materials. During and after the construction of the three cells, laboratory and field tests were carried out to characterize the material properties. The test results were used in the mechanistic-empirical pavement design guide (MEPDG) to predict the pavement performance. Based on the performance prediction, the life cycle analyses of cost, energy consumption, and greenhouse gasses were performed. The leaching impacts of these three types of base materials were compared. The laboratory and field tests showed that fly ash stabilized RPM had higher modulus than crushed aggregate and RPM did. Based on the MEPDG performance prediction, the service life of the Cell 79 containing fly ash stabilized RPM, is 23.5 years, which is about twice the service life (11 years) of the Cell 77 with RPM base, and about three times the service life (7.5 years) of the Cell 78 with crushed aggregate base. The life cycle analysis indicated that the usage of the fly ash stabilized RPM as the base of the flexible pavement can significantly reduce the life cycle cost, the energy consumption, the greenhouse gases emission. Concentrations of many trace elements, particularly those with relatively low water quality standards, diminish over time as water flows through the pavement profile. For many elements, concentrations below US water drinking water quality standards are attained at the bottom of the pavement profile within 2-4 pore volumes of flow.

  15. The importance of the glass transition temperature in relation to the low-temperature fracture resistance of asphalt and sulphlex pavement binders 

    E-Print Network [OSTI]

    Smith, Douglas Lee

    1985-01-01

    dilatometer was fabricated for use in the determination of the glass trans1ti on temperature of asphalt and plasticized sulfur (Sulphlex) pavement binders. A total of 11 materials were examined including seven Sul phlex binders, a blend of two Sulphlex.... Ouartz Tube Dilatometer . Df fferential Scanning Calorimetry . IV EXPERIMENTAL PRDCEOURE. Materials Selection . . Di 1atometri c Measurements V RESULTS Vi scoel asti c Justi f i cat i on. Experimental Results. Statistical Analysis. VI CONCLUSIONS...

  16. Two- and Three-Dimensional Microstructural Modeling of Asphalt Particulate Composite Materials using a Unified Viscoelastic-Viscoplastic-Viscodamage Constitutive Model 

    E-Print Network [OSTI]

    You, Taesun

    2013-08-13

    -viscoplastic, and thermo-viscodamaged materials, while the aggregate is considered to be a linear, isotropic elastic material. The 2D RVEs were used to study the effects of variation in aggregate shape, distribution, volume fraction, ITZ strength, strain rate... Page Figure IV-19. Damage density distribution of asphalt concrete models with tensile strain rates (50% aggregate volume fraction and T=20 ?C): (a) 10-6/second, (b) 10-5/second, (c) 10-4/second, and (d) 10...

  17. SOLAR HEATING OF TANK BOTTOMS Application of Solar Heating to Asphaltic and Parrafinic Oils Reducing Fuel Costs and Greenhouse Gases Due to Use of Natural Gas and Propane

    SciTech Connect (OSTI)

    Eugene A. Fritzler

    2005-09-01

    The sale of crude oil requires that the crude meet product specifications for BS&W, temperature, pour point and API gravity. The physical characteristics of the crude such as pour point and viscosity effect the efficient loading, transport, and unloading of the crude oil. In many cases, the crude oil has either a very high paraffin content or asphalt content which will require either hot oiling or the addition of diluents to the crude oil to reduce the viscosity and the pour point of the oil allowing the crude oil to be readily loaded on to the transport. Marginal wells are significantly impacted by the cost of preheating the oil to an appropriate temperature to allow for ease of transport. Highly paraffinic and asphaltic oils exist throughout the D-J basin and generally require pretreatment during cold months prior to sales. The current study addresses the use of solar energy to heat tank bottoms and improves the overall efficiency and operational reliability of stripper wells.

  18. DIY TIMBER DECKS CHECKLIST POINTS TO CONSIDER

    E-Print Network [OSTI]

    Peters, Richard

    , concrete, stirrups etc. · Make an allowance for unexpected costs. · Use of tradies. · Skip hire. LEVEL. · Square. · Metal rule. · Spirit levels. · String line. · Impact drill (for drilling into brick walls/masonry etc). · Masonry drill bits. · Power drill with screwdriver bits. · Timber drill bits. · Dyna bolts

  19. Beyond Mortar and Bricks

    E-Print Network [OSTI]

    Kretsinger, Anne

    2008-07-01

    ://www.dailysoft.com/berlinwall/indes.html>. 4. “Episode 9: !e Wall.” CNN Interactive. Retrieved on Oct. 21, 2006, from . 5. Munro, Sir Leslie. (1962). “Introduction” in !e Berlin Wall: A De#ance of Human Rights. International Commission...://www.dailysoft.com/berlinwall/indes.html>. 4. “Episode 9: !e Wall.” CNN Interactive. Retrieved on Oct. 21, 2006, from . 5. Munro, Sir Leslie. (1962). “Introduction” in !e Berlin Wall: A De#ance of Human Rights. International Commission...

  20. A few comments on Brick-wall model and the Entropy of a scalar field in Schwarzschild black hole background:II

    E-Print Network [OSTI]

    K. Ghosh

    2014-10-14

    In this article we will discuss a Lorentzian sector calculation of the entropy of a minimally coupled scalar field in the Schwarzschild and in the Reissner-Nordstrom black hole backgrounds using the brick wall model of t' Hooft. We will use the semiclassical WKB approximation and find the possible states using the WKB quantization rule which is similar to the semiclassical Bohr-Sommerfeld quantization rule. In a previous article we found that the WKB quantization rule together with a proper counting of the states lead to a new expression for the matter field entropy which is not proportional to the area of the horizon. The expression of the entropy is logarithmically divergent in the brick wall cut-off parameter in contrary to an inverse power divergence obtained earlier. In this article we will first show that similar situation remains to be valid for the non-extreme Reissner-Nordstrom black hole background. We will next consider the modes which are not globally stationary and are confined near the horizon. The results indicate the regions in which the WKB approximation holds better and we will consider the entropy for a thin shell of matter field of a given thickness surrounding the black hole horizon. The thickness is chosen to be large compared to the Planck length. We will discuss the corresponding boundary conditions and the appropriateness of the WKB approximation using the Regge-Wheeler tortoise coordinates. When expressed in terms of a covariant cut-off parameter, the entropy of a thin shell of matter field of a given thickness and surrounding the horizon in the Schwarzschild black hole background is given by an expression proportional to the area of the black hole horizon. This leading order divergent term in the cut-off parameter remains to be logarithmically divergent.

  1. Variability of hot mix asphalt produced with reclaimed asphalt pavement 

    E-Print Network [OSTI]

    Yang, Guiqin

    1999-01-01

    Pavement recycling operations have been used in the United States from the early 1900s to date. These recycling operations have been used for a variety of reasons including solid waste disposal problems, reduction of initial cost, and conservation...

  2. Fulvio_Brick and Mortar

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFES OctoberEvanServicesAmesFourFromFuel CellFull CommentsI,5

  3. Testing of hollow clay tile masonry prisms

    SciTech Connect (OSTI)

    Jones, W.D.; Butala, M.B.

    1993-10-15

    This paper presents test results of 610-mm wide (24-in.) by 1219-mm high (48-in.) by 203-or 330-mm (8- or 13-in.) thick prisms constructed of hollow clay tiles. Three prisms were extracted fro existing hollow clay title walls and 69 were constructed in laboratories at The University of Tennessee and the National Institute of Standards and Technology (NIST) in Gaithersburg, Maryland. Modulus of Elasticity, E, and compressive strength f{prime}{sub m} were calculated from the results.

  4. Structural optimization of 3D masonry buildings

    E-Print Network [OSTI]

    Whiting, Emily

    In the design of buildings, structural analysis is traditionally performed after the aesthetic design has been determined and has little influence on the overall form. In contrast, this paper presents an approach to guide ...

  5. International Masonry Institute | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View NewGuam:on OpeneiAlbanian CentreHoldingsFund forGreen Power

  6. By-Products Utilization

    E-Print Network [OSTI]

    Wisconsin-Milwaukee, University of

    technologies. A clean-coal ash is defined as the ash derived from SOxand NOxcontrol technologies, and FBC that obtained from clean-coal technology, are not utilized in cast-concrete masonry products (bricks, blocks conventional and clean-coal technologies. Fifteen high-sulfur coal ash samples were obtained from eight

  7. By-Products Utilization

    E-Print Network [OSTI]

    Wisconsin-Milwaukee, University of

    clean coal technology, are not extensively utilized in the cast concrete masonry products (bricks both conventional and clean coal technologies. A clean coal ash is defined as the ash derived from SO2Center for By-Products Utilization USE OF CLASS F FLY ASH AND CLEAN-COAL ASH BLENDS FOR CAST

  8. By-Products Utilization

    E-Print Network [OSTI]

    Wisconsin-Milwaukee, University of

    combustion by-products #12;3 generated by using both conventional and clean-coal technologies. A clean-coal that obtained from clean-coal technology, are not utilized in cast-concrete masonry products (bricks, blocksCenter for By-Products Utilization RECENT ADVANCES IN RECYCLING CLEAN- COAL ASH By Tarun R. Naik

  9. Revision 5/05/15 YES NO NO NO NO

    E-Print Network [OSTI]

    McConnell, Terry

    for the purpose of subsequent transfer to another solid waste management facility. Are Lab Results for TCLP1 Above" and unadultered wood, asphalt pavement, brick, concrete, masonary waste, soil or rocks. Waste Management Flowchart&D Landfill: Can accept and dispose of only C&D waste Can accept and dispose of C&D and other solid wastes

  10. Multiscale approach for modeling hot mix asphalt 

    E-Print Network [OSTI]

    Dessouky, Samer Hassan

    2005-08-29

    presents the development of elastic and visco-plastic models that account for important aspects of the microstructure distribution in modeling the macroscopic behavior of HMA. In the first part of this study, an approach is developed to introduce a length...

  11. ORIGINAL CONTRIBUTION Rheological characterization of asphalt

    E-Print Network [OSTI]

    Mather, Patrick T.

    compared favorably with those obtained using conventional parallel-plate torsional flow in a commercial and are aggregates of polar aromatic compounds (Maruska and Rao 1987). Maltenes are nonpolar aliphatic hydrocarbons time (Anderson and Marasteanu 1999). Because of their codification, the conventional tests

  12. Asphalt Oxidation Kinetics and Pavement Oxidation Modeling 

    E-Print Network [OSTI]

    Jin, Xin

    2012-07-16

    by XIN JIN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved by: Chair of Committee, Charles J. Glover Committee Members, Amy Epps... I would like to thank my committee chair, Dr. Charles J. Glover, and my committee members, Dr. Amy Epps Martin, Dr. Victor M. Ugaz, Dr. M. Sam Mannan, for their guidance and support throughout the course of this research. Thanks also go to my...

  13. Anisotropic Characterization of Asphalt Mixtures in Compression 

    E-Print Network [OSTI]

    Zhang, Yuqing 1983-

    2012-10-08

    and physically related to anisotropic modulus ratio. The anisotropic viscoelasticity was represented by complex moduli and Poisson's ratios in separate orthogonal directions that were determined by an efficient testing protocol. Master curve models were proposed...

  14. Cool Asphalt Shingles | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based Fuels|ProgramsLakeDepartment of Energy3-1DepartmentCooking UpCool

  15. Water Well with Brick Pump House 

    E-Print Network [OSTI]

    Raiford Stripling Associates, Inc.; Stripling, Raiford L.

    2011-08-29

    Expensive fan wrecks and down time occurs when couplings break or gearboxes self-destruct. A viable alternative eliminates shaft, coupling, and gearbox moving motor to ground level, driving a hydraulic pump transmitting fluid under pressure. A...

  16. RavenBrick LLC | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onRAPID/Geothermal/Exploration/Colorado <RAPID/Geothermal/WaterEnergy Marketing CorpMemberREC) JumpRaus

  17. Effect of viscosity of asphalt on stress strain and volume change characteristics of asphaltic mixtures 

    E-Print Network [OSTI]

    Gandhi, Poduru Mohandas Karamchand

    1966-01-01

    help given by the Texas Transportation Instituce for the auchor s graduate study i. s sincerely appreciated, The author is very grateful to Nsp students Messrs. Dou Russell and John cohagan uho helped cha author in tha experimental murk. Thanks ara... dua Mrs. Rddie Raye andrews for her excellent aud patient typing of this thesis. Finally, the author is deeply indebted to his uife for her conCinuous help and encouragamant. iv I INTRODUCTION II REVIEW OP LITERATBRE Rheological Properties...

  18. Concrete Masonry Wall Retrofit Systems for Blast Protection 

    E-Print Network [OSTI]

    Johnson, Carol Faye

    2013-12-11

    Corporation. The insight provided by the representatives from each company was invaluable. Finally, thanks to my family and friends for their encouragement, patience, and love. vi NOMENCLATURE A Area AFB Air Force Base AFRL Air Force Research...

  19. Retrofitting unreinforced concrete masonry to resist tornado loading

    E-Print Network [OSTI]

    Dorshorst, Evan G. (Evan Gregory)

    2013-01-01

    Advances in structural design and building materials have significantly increased the performance of many structures under the extreme loading conditions associated with natural disasters such as earthquakes. However, ...

  20. Base Isolation of a Chilean Masonry House: A Comparative Study 

    E-Print Network [OSTI]

    Husfeld, Rachel L.

    2010-01-16

    throughout the world. These earthquakes have a major impact on society. Recent examples include the M S 7.7 earthquake in Gujarat, India, in 2001; the M S 6.6 earthquake in Bam, Iran, in 2003; the M W 9.1 2004 Indian Ocean earthquake; the M S 7...

  1. ENERGY BUDGETS AND MASONRY HOUSES: A PRELIMINARY ANALYSIS OF THE COMPARATIVE ENERGY PERFORMANCE OF MASONRY AND WOOD-FRAME HOUSES

    E-Print Network [OSTI]

    Goldstein, David B.

    2012-01-01

    of Proposed Building Energy Performance Standards'' Pacificbuildings with building energy performance standards. The1uati on of Building Energy Performance Standards", Lawrence

  2. Performance of Drained and Undrained Flexible Pavement Structures Under Wet Conditions Test Data From Accelerated Pavement Test Section 543-Drained

    E-Print Network [OSTI]

    2004-01-01

    or through very permeable asphalt concrete and carry it outAsphalt Concrete Asphalt Treated Permeable Base AggregateAsphalt Concrete Asphalt Treated Permeable Base Aggregate

  3. -A Science Service Feature 7 VHYTHEI'rrEATHER 1

    E-Print Network [OSTI]

    apart from the ice storm. Just as warm rain f a l l i n g on a sidewalk may leave its surface dry, so, too, chilled rain may f a l l 011 brick or asphalt without wetting it, evaporates the raindrops converted i n t o i c e . In the one case the hot surface In the other, rain,cooled be- Some snowstorms

  4. Technology meets aggregate

    SciTech Connect (OSTI)

    Wilson, C.; Swan, C.

    2007-07-01

    New technology carried out at Tufts University and the University of Massachusetts on synthetic lightweight aggregate has created material from various qualities of fly ash from coal-fired power plants for use in different engineered applications. In pilot scale manufacturing tests an 'SLA' containing 80% fly ash and 20% mixed plastic waste from packaging was produced by 'dry blending' mixed plastic with high carbon fly ash. A trial run was completed to produce concrete masonry unit (CMU) blocks at a full-scale facility. It has been shown that SLA can be used as a partial substitution of a traditional stone aggregate in hot asphalt mix. 1 fig., 2 photos.

  5. Existing Whole-House Solutions Case Study: 56th and Walnut: A Philly Gut Rehab Development, Philadelphia, Pennsylvania

    SciTech Connect (OSTI)

    2013-11-01

    Load-bearing brick-masonry multifamily buildings are prevalent in urban areas across much of the Northeast and mid-Atlantic. In most instances, these buildings are uninsulated unless they have been renovated within the past two decades. Affordable housing capital budgets typically limit what can be spent and energy improvements often take a back seat to basic capital improvements such as interior finish upgrades and basic repairs. The Consortium for Advanced Residential Buildings (CARB) is researching cost-effective solution packages for significant energy efficiency and indoor air-quality improvements in these urban buildings.

  6. 56th & Walnut - A Philly Gut Rehab Development

    SciTech Connect (OSTI)

    Puttagunta, S.; Faakye, O.; Zoeller, W.

    2013-07-01

    Load-bearing brick-masonry multifamily buildings are prevalent in urban areas across much of the Northeast and mid-Atlantic. In most instances, these buildings are uninsulated unless they have been renovated within the past two decades. Affordable housing capital budgets typically limit what can be spent and energy improvements often take a back seat to basic capital improvements such as interior finish upgrades and basic repairs. The Consortium for Advanced Residential Buildings is researching cost-effective solution packages for significant energy efficiency and indoor air-quality improvements in these urban buildings.

  7. Innovative rehabilitation technologies: A state of the art overview

    SciTech Connect (OSTI)

    1996-02-01

    This report describes the results of a 1995 Housing Rehabilitation Technologies study, through which HUD sought information from the model code associations, trade and professional organizations, manufacturers, and others on new technologies and advances in existing ones. In deciding which technologies to include in the report, three criteria were applied: cost, time, and quality. Among the technologies discussed are reinforced hollow brick masonry, moisture barrier housewraps, ductless air conditioners, cast-in-place flue relining systems, wood flooring installation systems, and dust control methods. The report also notes that many design advances are occurring in the areas of compute software, seismic retrofit, hazardous materials abatement, accessibility, home automation, and energy-efficient labeling.

  8. 56th & Walnut - A Philly Gut Rehab Development

    SciTech Connect (OSTI)

    Puttagunta, S.; Faakye, O.; Zoeller, W.

    2013-07-01

    Load-bearing brick-masonry multifamily buildings are prevalent in urban areas across much of the U.S. Northeast and mid-Atlantic. In most instances, these buildings are uninsulated unless they have been renovated within the past two decades. Affordable housing capital budgets typically limit what can be spent and energy improvements often take a back seat to basic capital improvements such as interior finish upgrades and basic repairs. The Consortium for Advanced Residential Buildings is researching cost-effective solution packages for significant energy efficiency and indoor air-quality improvements in these urban buildings, as presented in this report.

  9. Evaluation of Laboratory Conditioning Protocols for Warm-Mix Asphalt 

    E-Print Network [OSTI]

    Yin, Fan 1990-

    2012-10-26

    ) and off-site Plant Mixed Laboratory Compacted (PMLC) specimens were selected, and their effects on mixture properties were evaluated. Mixture stiffness evaluated in a dry condition using the Resilient Modulus (MR) test (ASTM D-7369) was the main parameter...

  10. Analyses of sulfur-asphalt field trials in Texas 

    E-Print Network [OSTI]

    Newcomb, David Edward

    1979-01-01

    I I wr r I OI OI OI OI OI OI OI OI OI CL dl OJ OI OI OI OI Ol Crl OOCJCCJ: JJ av v o o o v o a IU fd RI fd fd IU fd fd fU IO 4 4 4 4 IO 4 4 IO C L I \\ I 1 III VI Vl III Vl f/I IU IU IU IU O Cl dl U CLCLCCCLU CL'IZ:LL a n. o. IU lll dl... IO Ol IO I/I (U Crl O ' dl E IOmr mOIOmL/IIO IO P) M CO P) Iff fO fO IO CU Of O Gl O O v O dl dl dl v C O C Cl fd fd fd 5 I- O U-U U I- IU df dl IJ IJ O O O fd fd fd L- LI U Lf E C fd fd O O. ' IU V/I Lf CCI fd UJ O O...

  11. A thermodynamic approach for compaction of asphaltic composites 

    E-Print Network [OSTI]

    Koneru, Saradhi

    2009-05-15

    Binder . . . . . . . . . . . . . . . . . . . 8 C. Compaction Equipment . . . . . . . . . . . . . . . . . . . . 9 1. Field Compaction Equipment . . . . . . . . . . . . . . 9 a. Static Steel Wheel Rollers . . . . . . . . . . . . . 9 b. Pneumatic Tire... the desired density level and meet the specifications ? To provide the roadway with a smooth surface. The compaction equipment can be divided into three general categories; static steel wheel rollers, pneumatic tire rollers, and vibratory steel wheel rollers...

  12. Measurements of moisture suction in hot mix asphalt mixes 

    E-Print Network [OSTI]

    Kassem, Emad Abdel-Rahman

    2006-10-30

    . Peltier Effect...........................................................................................................14 Fig. 6. Stainless Steel Screen Thermocouple Psychrometer..............................................16 Fig. 7. Cover Materials.... The first one is called wet loop and the second one is called Peltier psychrometer. Both of them measure the relative humidity based on the temperature difference between two surfaces, the nonevaporating surface (dry bulb) and the evaporating surface (wet...

  13. Asphalt landscape after all : residual suburban surface as public infrastructure

    E-Print Network [OSTI]

    O'Connor, Joseph Michael, M. Arch. Massachusetts Institute of Technology

    2011-01-01

    The thesis proposes a hybridized commercial retail strip inserted into a residual suburban condition as a manner of investigating the latent potential of suburban logic, both its constituent elements and its formal rules ...

  14. Complex Modulus Prediction of Asphalt Concrete Pavement Cores 

    E-Print Network [OSTI]

    Ling, Meng

    2013-12-02

    . For field cores complex modulus measuring methods, except some expensive pavement field testers, empirical and semiempirical models are widely used, but an accurate mechanical test method is more desired. In this research, Arizona, Yellowstone National Park...

  15. Recycling asphaltic concrete with sulphur as a supplemental binder 

    E-Print Network [OSTI]

    Barnett, Robert William

    1976-01-01

    ) (275'F) Ring and Ball Softening Point Specific Gravity 0. 2 mm 1. 2 mm Too Hard 14. 7 cSt 15S'F 1. 04 D 5 [53] D 5 [53] D 2170 [54] D 2170 [54] D 36 [55] D 70 [56] a Extraction ? ASTM Designation: D 2172 [57] TABLE 2--Physical... properties of the recovered aggregate. Property Fine Aggregate a b Coarse Aggregate Specific Gravity Bu11% SSD 2. 59 2. 60 Specific Gravity Apparent Absorption 2. 65 1. 4X 2. 66 1. 2X Percent Passing No. 200 Sieve S. OX ASTM Designation: C 128...

  16. Prediction of Reflection Cracking in Hot Mix Asphalt Overlays 

    E-Print Network [OSTI]

    Tsai, Fang-Ling

    2011-02-22

    Distribution ??????????????????????????????? 64 3.4.5 Number of Axle Types per Vehicle ???????????????????????????????????? 65 3.5 Tire Patch Length and Cumulative Axle Load Distribution ???????????????? 70 3.5.1 Tire Patch Length... ???????????????????????????????????????????????????????? 70 3.5.2 Determination of Cumulative Axle Load Distribution on Tire Length ???????????????????????????????????????????????????????????? 71 3.5.3 Modeling of Cumulative Axle Load Distribution (CALD) ????????? 76 3.6 Determination of Hourly Number...

  17. Fatigue Resistance of Asphalt Mixtures Affected by Water Vapor Movement 

    E-Print Network [OSTI]

    Tong, Yunwei

    2013-11-08

    This dissertation has two key objectives: the first objective is to develop a method of predicting and quantifying the amount of water that can enter into a pavement system by vapor transport; the second objective is to ...

  18. Energy Efficiency Opportunities in the Stone and Asphalt Industry 

    E-Print Network [OSTI]

    Moray, S.; Throop, N.; Seryak, J.; Schmidt, C.; Fisher, C.; D'Antonio, M.

    2006-01-01

    of locations use underground mines. Mining methods involve removing the overburden to extract the underlying rock deposits. Tricone rotary drills, long-hole percussion drills, and churn drills are used to create the blast holes in the rocks. Blasting... Energy & Resource Solutions, Inc. Haverhill, MA Abstract The highly energy-intensive stone mining and crushing industry, grouped with other mining industries, has been one of the focal sectors of the US Department of Energy’s Industries...

  19. Full-Depth Pavement Reclamation with Foamed Asphalt: Final Report

    E-Print Network [OSTI]

    Jones, David; Fu, P.; Harvey, John T; Halles, F.

    2008-01-01

    content). Small cold milling machines (e.g. , Wirtgen W35 orbe excavated with a cold milling machine to ensure thattest pits using a cold milling machine, the target grading

  20. Full-Depth Pavement Reclamation with Foamed Asphalt: Final Report

    E-Print Network [OSTI]

    Jones, David; Fu, P.; Harvey, John T; Halles, F.

    2008-01-01

    cement, lime) and/or inert (fly ash, mineral fines) fillershydrated lime, Class-C fly ash, and cement kiln dust.lime), semi-active (e.g. , fly-ash and kiln dust), and inert

  1. Evaluation of Moisture Susceptibility of Warm Mix Asphalt 

    E-Print Network [OSTI]

    Garcia Cucalon, Maria Lorena

    2013-05-03

    Economic, environmental and engineering benefits promote the rapid implementation of WMA technologies. However, concerns remain based on changes in the production process that may lead to moisture susceptibility in the ...

  2. Toward an Improved Model of Asphalt Binder Oxidation in Pavements 

    E-Print Network [OSTI]

    Prapaitrakul, Nikornpon

    2011-02-22

    nd Coring of the Study ................................. 20 Table II-3. Properties of the Abilene L1 and L2 Cores ......................................... 30 Table II-4. Properties of the Abilene R1 and R2 Cores... Coring 2 nd Coring Ce11 1 5.9 Ce11 3 6.3 AC 120/150 (Un) 1992 Ce11 33 4.04 58-28 (Un) Ce11 34 3.92 58-34 (SBS) Ce11 35 I 94 3.96 58-40 (SBS) 1999 11/2004 07/2006 The accessible or interconnected air voids of core samples from the Mn...

  3. PERFORMANCE ASSESSMENT OF POROUS ASPHALT FOR STORMWATER TREATMENT

    E-Print Network [OSTI]

    1.4 Study Area Durability, Life Cycle, and Cost....................................... 21 2.3 Surface Infiltration Capacity

  4. Full-Depth Pavement Reclamation with Foamed Asphalt: Final Report

    E-Print Network [OSTI]

    Jones, David; Fu, P.; Harvey, John T; Halles, F.

    2008-01-01

    Standard Method of Test for Determining the Creep ComplianceStandard Method of Test for Determining the Creep ComplianceLTPP P07 (Test Method for Determining the Creep Compliance,

  5. Toxic species emissions from controlled combustion of selected paving asphalts 

    E-Print Network [OSTI]

    Mendez, Carlos Luis

    1993-01-01

    Table XIII. Gas Analysis Results for Material ACT-2 Using Method 1 . . . 46 Table XIV. Approximate Yield (liter/kg) of NOx from Materials AC-10A, AC-10B, AC-10C, AR4%-B, AR10%-B and AR18%-B 48 Table XV. Approximate Yield (liter/kg) of SO2 from... 53 LIST OF TABLES (Continued) Table XIX. Smoke Mass Results for Material AC-5B . . . Table XX. Smoke Mass Results for Material AR10%-B . . Table XXI. Coefficient of Variation for Materials AC-10A, AC-10B, AC-10C, AC-5B and AR10%-B. Table XXII...

  6. New Cool Roof Coatings and Affordable Cool Color Asphalt

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURING OFFICESpecialAPPENDIXConcentratingInstitutionalEnergyNew CleanNew Cool Roof

  7. Quantifying potential industrial symbiosis : a case study of brick manufacturing

    E-Print Network [OSTI]

    Hodge, Matthew M

    2007-01-01

    Humanity is currently on an unsustainable path of growth and development. One tool to address sustainability in industrial activities is Industrial Symbiosis, which is the study of cooperation across industry boundaries ...

  8. Saline absorption in calcium silicate brick observed by NMR scanning

    E-Print Network [OSTI]

    Eindhoven, Technische Universiteit

    and structural damages, and the corrosion of steel in concrete structures, which can cause structural damages will have a direct in uence on the capillary action, viscosity, and permeability and therefore

  9. 56th and Walnut: A Philly Gut Rehab Development; Philadelphia, Pennsylvania (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-11-01

    Load-bearing brick-masonry multifamily buildings are prevalent in urban areas across much of the Northeast and mid-Atlantic. In most instances, these buildings are un-insulated unless they have been renovated within the past two decades. Affordable housing capital budgets typically limit what can be spent and energy improvements often take a back seat to basic capital improvements such as interior finish upgrades and basic repairs. The Consortium for Advanced Residential Buildings (CARB) is researching cost effective solution packages for significant energy efficiency and indoor air-quality improvements in these urban buildings. To explore how these low-cost retrofits can effectively integrate energy efficiency upgrades, CARB partnered with Columbus Property Management and Development, Inc. on a community-scale gut rehabilitation project located at 56th Street and Walnut Street in Philadelphia, consisting of 32 units in eleven 3-story buildings. These buildings were built in the early 1900s using stone foundations and solid brick-masonry walls. They were renovated in the 1990s to have interior light gauge metal framing with R-13 batt in the above-grade walls, induced-draft furnaces, and central air conditioning.

  10. Blast simulator wall tests : experimental methods and mitigation strategies for reinforced concrete and concrete Masonry

    E-Print Network [OSTI]

    Oesterle, Michael G.

    2009-01-01

    in reinforced concrete section d cfb Distance to bottom CFRPof bolt A c Area of concrete A cfb Cross-sectional area offunction for BG programmers F cfb Stress in bottom CFRP F

  11. Experimental and analytical investigation of the seismic performance of low-rise masonry veneer buildings

    E-Print Network [OSTI]

    Okail, Hussein

    2010-01-01

    J. , “Implications of the IRC Seismic Requirements on Brickand Two-Family Dwellings (IRC)”, 2006. Itani, R.Y. , andwallboards, respectively. The IRC (ICC, 2006) provides

  12. Robotic design construction : digital fabrication strategies for freeform masonry casting and mobile assembly

    E-Print Network [OSTI]

    Liu, Yuchen, S.M. Massachusetts Institute of Technology

    2009-01-01

    The paradigm shift of digital fabrication encourages architects to incorporate the knowledge of using innovative materials and novel tools to solve problems in design and construction. However, the application of digital ...

  13. Experimental and analytical investigation of the seismic performance of low-rise masonry veneer buildings

    E-Print Network [OSTI]

    Okail, Hussein

    2010-01-01

    and Below . 28 Table 3.1. Summary of Wood-Stud Wall43 Table 3.2. Test Sequence for the Wood-StudModel for Wood-Stud Walls 122

  14. Non-laminated FRP Strap Elements for Reinforced Concrete, Timber and Masonry Applications

    E-Print Network [OSTI]

    Lees, Janet M.; Winistörfer, A. U.

    2010-05-11

    - metallic versions of support pads of the type shown in Fig. 5 have also been developed (Nägeli 2006). Straps consisting of 10 layers of 0.13 mm CFRP tape supported on high density polyethylene (HDPE), GFRP or CFRP prestressed concrete pads have been... for Reinforced Concrete Structures (FRPRCS-7). SP-230 , eds: C.K. Shield, J.P. Busel, S.L. Walkup and D.D. Gremel, ACI International SP-230-40, pp.685-704. 7. Hoult, N.A. and Lees, J.M. (2009), Efficient CFRP strap configurations for the shear...

  15. Design of structurally-sound masonry buildings using 3D static analysis

    E-Print Network [OSTI]

    Whiting, Emily Jing Wei

    2012-01-01

    In the design of buildings, structural analysis is traditionally performed after the aesthetic design has been determined and has little in uence on the overall form. This thesis presents methods to integrate architectural ...

  16. Blast simulator wall tests : experimental methods and mitigation strategies for reinforced concrete and concrete Masonry

    E-Print Network [OSTI]

    Oesterle, Michael G.

    2009-01-01

    the bolts connecting the plate to the support structurethe number of bolts used to secure the bottom support angle.bolts and steel ties needed to connect the polyurea to the supports.

  17. CBEI: Packaged Masonry Wall Retrofit Solution for Small and Medium Sized

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram:Y-12Power,5 BUDGET AT-A-GLANCE BuildingsC.D.CALiPER|Peer

  18. CBEI - Packaged Masonry Wall Retrofit Solutions for Small and Medium sized Commercial Buildings

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based Fuels| Department ofBusiness Opportunity SessionJuneof Energy Packaged

  19. Improvements to a Transport Model of Asphalt Binder Oxidation in Pavements: Pavement Temperature Modeling, Oxygen Diffusivity in Asphalt Binders and Mastics, and Pavement Air Void Characterization 

    E-Print Network [OSTI]

    Han, Rongbin

    2012-07-16

    ) and image processing techniques. From these imaging techniques, three pavement air void properties, radius of each air void (r), number of air voids (N), and average shell distance between two air voids (rNFB) were obtained to use as model inputs...

  20. A study of the effects of limestone rock asphalt screenings on the structural properties of hot-mix asphaltic concrete made with siliceous materials 

    E-Print Network [OSTI]

    Albritton, Oscar Willard

    1958-01-01

    . Z Total yo a 28 9o Bin No. 3 Total 9o oo Igloo Bin No. 4 Total 9o ot Combined Analysis fo 1. 6 30. 8 58. 2 4 ? 10 38 Z0. 5 19 5. 3 25. 8 10 ? 40 43 12. I 14. 3 40 ? 80 36 10. 0 11. 7 21. 7 80 ? 200 0. 6 4. 3 4, 9 Pass 200 0, 9 0. 9.... 6 40 ? 80 36 2. 9 65 11. 7 19 3. 8 18 4 80 ? ZOO Pass ZOO 0. 2 24 0. 9 l. 8 l. 2 6. 3 2. 1 Total 100@a 54. 0/o 100'fo 8, 0'fo 1009'o 18. 0'fo 100/a 20. Ofo 100fo Bin No, I - Allen Farm Pea Gravel . Bin No. 2 - Gifford-Hill Concrete Sand...

  1. Passive solar construction handbook

    SciTech Connect (OSTI)

    Levy, E.; Evans, D.; Gardstein, C.

    1981-08-01

    Many of the basic elements of passive solar design are reviewed. The unique design constraints presented in passive homes are introduced and many of the salient issues influencing design decisions are described briefly. Passive solar construction is described for each passive system type: direct gain, thermal storage wall, attached sunspace, thermal storage roof, and convective loop. For each system type, important design and construction issues are discussed and case studies illustrating designed and built examples of the system type are presented. Construction details are given and construction and thermal performance information is given for the materials used in collector components, storage components, and control components. Included are glazing materials, framing systems, caulking and sealants, concrete masonry, concrete, brick, shading, reflectors, and insulators. The Load Collector Ratio method for estimating passive system performance is appended, and other analysis methods are briefly summarized. (LEW)

  2. Caltrans Partnered Pavement Research Program (PPRC) Summary Report: Four Year Period: 2000–2004

    E-Print Network [OSTI]

    Harvey, John T; Monismith, Carl L.; Nokes, William; Coetzee, N. F

    2006-01-01

    in the asphalt concrete layer will reduce its permeability.asphalt concrete layer. Reducing the permeability and the

  3. A novel technique for the production of cool colored concrete tile and asphalt shingle roofing products

    E-Print Network [OSTI]

    Levinson, Ronnen

    2010-01-01

    energy, mitigate urban heat islands and slow global warmingenergy, mitigate urban heat islands and slow global warmingcommunities: strategies for heat islands mitigation and smog

  4. Impact of aging on asphalt pavement performance, ductility and DSR measurements 

    E-Print Network [OSTI]

    Al-Azri, Nasser Ahmed

    2002-01-01

    was also established from the perspective of the viscoelastic rheological properties, G' and []'. Data points were plotted on G' vs. G'/[]' map. Both field and lab-aged binder followed the same trend on that map as aging progressed. The study of hardening...

  5. Investigation of Conditions for Moisture Damage in Asphalt Concrete and Appropriate Laboratory Test Methods

    E-Print Network [OSTI]

    Harvey, John T; Lu, Qing

    2005-01-01

    25. Admixtures used (lime, liquid anti- strip, etc. ) Mixuse of anti-strip additive (lime or liquid), and pavementeffectiveness of both hydrated lime and liquid anti-strip

  6. Investigation of Conditions for Moisture Damage in Asphalt Concrete and Appropriate Laboratory Test Methods

    E-Print Network [OSTI]

    Lu, Qing

    2005-01-01

    effectiveness of both hydrated lime and liquid antistripping25. Admixtures used (lime, liquid anti- strip, etc. ) Mixeffectiveness of both hydrated lime and liquid antistripping

  7. Compaction Effects on Uniformity, Moisture Diffusion, and Mechanical Properties of Asphalt Pavements 

    E-Print Network [OSTI]

    Kassem, Emad Abdel-Rahman Ahmed

    2011-08-08

    of Core 4 from FW-01 Section ............147 9-1 (a) Seebeck Effect, (b) Peltier Effect (Fredlund and Rahardjo 1993) .................150 9-2 Calibration Curve of Thermocouple Psychrometer ............................................152 9...

  8. Thickness estimation of subsurface layers in asphalt pavement using monstatic ground penetrating radar 

    E-Print Network [OSTI]

    Lau, Chun Lok

    1991-01-01

    , The signature of the pulse emerging from the antenna looks different from the transmitter signal. Records of these signals are shown in Fig 2. 4. 1a-c. Fig 2. 4. 1a The transmitter pulse Fig 2. 4. 1b The mathematical differentiation of Fig2. 4. 1a Fig 2. 4... the metal plate is recorded and then the file consists of the adverse effects of the GPR system is subtracted from this record. The result is shown below in Fig 2. 4. 2a-c. Fig 2. 4. 2a Metal plate reflection toaveform before processing 22 Fig 2. 4. 2b...

  9. Whole House Thermal Performance of Asphalt Shingles Exploiting Special Infrared Reflective Pigments 

    E-Print Network [OSTI]

    Hahn, L.; Miller, W.; Desjarlais, A.; Jacobs, J.; Youngquist, A.

    2006-01-01

    Industrial Mineral Products St. Paul, Minnesota Adam Youngquist Graduate Student Mechanical Engineering University of Tennessee Knoxville, Tennessee ABSTRACT New “cool pigmented” colors that appear as dark colors in the visible spectrum... of background foliage in the visible and NIR spectra. The chlorophyll in plants strongly absorbs in the non-green parts of the visible spectrum, giving the leaf a dark green color with high reflectance elsewhere in the solar spectrum 1 (Kipling 1970...

  10. Influence of fundamental material properties and air void structure on moisture damage of asphalt mixes 

    E-Print Network [OSTI]

    Arambula Mercado, Edith

    2009-05-15

    Members, Robert L. Lytton Hamn-Ching Chen David S. Schechter Head of Department, David V. Rosowsky May 2007 Major Subject: Civil Engineering iii ABSTRACT Influence of Fundamental Material Properties and Air Void Structure... I dedicate this work to my beloved parents, Mart?n Lilia Raquel and to my dear sisters, Ivette Lizette Anette vi ACKNOWLEDGEMENTS I extend my sincere appreciation to the co-chairs of my committee Dr. Eyad Masad, E.B. Snead I associate...

  11. Laboratory Evaluation of Hot-Mix Asphalt Concrete Fatigue Cracking Resistance 

    E-Print Network [OSTI]

    Jamison, Brandon Parker

    2012-02-14

    &M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved by: Chair of Committee, Amy Epps Martin Committee Members, Robert L. Lytton Karl T. Hartwig Head of Department, John Niedzwecki December 2010... appreciation and due gratitude to my advisor and study leader, Dr. Amy Epps Martin (E.B. Snead II Associate Professor), for the academic guidance, mentorship, and technical advice rendered during the course of this thesis. This thesis would not have been...

  12. Analysis of aggregate imaging system (AIMS) measurements and their relationship to asphalt pavement skid resistance 

    E-Print Network [OSTI]

    Luce, Anthony David

    2009-05-15

    and to propose a new method for the classification of aggregates based on their shape characteristics. This new method of classification is for use in the Texas Department of Transportation (TxDOT) wet weather accident reduction program (WWARP). The use of AIMS...

  13. A novel technique for the production of cool colored concrete tile and asphalt shingle roofing products

    E-Print Network [OSTI]

    Levinson, Ronnen

    2010-01-01

    Akbari and Paul Berdahl Heat Island Group, Lawrence Berkeleyenergy, mitigate urban heat islands and slow global warmingenergy, mitigate urban heat islands and slow global warming

  14. An evaluation of permanent deformation properties of crumb rubber modified (CRM) asphalt concrete mixtures 

    E-Print Network [OSTI]

    Makunike, Danai Ellarin

    1995-01-01

    The disposal of waste car and truck tires in the U.S. is becoming increasingly problematic, as is true for all forms of non-biodegradable solid waste. Over 200 million tires are discarded annually, of which only 34 percent are recycled in various...

  15. Characterization of aggregate resistance to degradation in stone matrix asphalt mixtures 

    E-Print Network [OSTI]

    Gatchalian, Dennis

    2006-04-12

    of aggregates to degradation in SMA was evaluated through the analysis of aggregate gradation before and after compaction using conventional mechanical sieve analysis and nondestructive X-ray computed tomography (CT). The findings of this study led...

  16. Surface roughness effects on the solar reflectance of cool asphalt shingles

    E-Print Network [OSTI]

    Berdahl, Paul

    2008-01-01

    Roofing Materials,” Solar Energy Materials & Solar Cells,measurements,” Solar Energy Materials & Solar Cells, 89(4):common colorants,” Solar Energy Materials & Solar Cells, 89(

  17. A novel technique for the production of cool colored concrete tile and asphalt shingle roofing products

    E-Print Network [OSTI]

    Levinson, Ronnen

    2010-01-01

    nm) In press at Solar Energy Materials & Solar Cellsasphalt shingles. Solar Energy Materials & Solar Cells 92 (common colorants, Solar Energy Materials & Solar Cells 89,

  18. Experimental Study on Geocell-Reinforced Recycled Asphalt Pavement (RAP) Bases under Static and Cyclic Loading

    E-Print Network [OSTI]

    Thakur, Jitendra Kumar

    2011-01-13

    .1.2 Standard Proctor compaction curve of subgrade 94 Figure 5.1.3 CBR versus moisture content curve of subgrade 95 Figure 5.2.1 Schematic diagram for the set up of cyclic plate load test 96 Figure 5.2.2 Cyclic loading wave 97 Figure 5.2.3 Geotextile... and coastal protection, airfields, railroads, subgrade improvement, and reinforcement to base courses of road sections etc. since the 1970s. Today, there are many types of geosynthetic products (e.g., geogrid, geotextile, geocell, geomembrane, geonet...

  19. Study of the asphalt pavement damage through nondestructive testing on overweight truck routes 

    E-Print Network [OSTI]

    Ramos-Aparicio, Sonia Ines

    2004-09-30

    Many highway facilities experience deterioration due to high traffic volumes and a service life that has been extended beyond facility design life. The 75th and 76th Texas Legislatures passed bills allowing trucks of gross ...

  20. Life-Cycle Environmental and Economic Assessment of Using Recycled Materials for Asphalt Pavements

    E-Print Network [OSTI]

    Horvath, Arpad

    2003-01-01

    million metric tons of recycled aggregates are generated instate to state in the U.S. Recycled aggregates are, however,consumption of recycled aggregates from crushed concrete

  1. Taphonomy and paleoecology of asphaltic Pleistocene vertebrate deposits of the western Neotropics

    E-Print Network [OSTI]

    Lindsey, Emily Leigh

    2013-01-01

    paleontology,  geology,  and  paleoecology:  Mammoth  Site  taphonomy  and   paleoecology:  University  of  Chicago  Gregory.  (2005).  Paleoecology  of  extinct  xenarthrans  

  2. The use of sulfer modified bottom ash (SMBA) as an aggregate in asphaltic mixtures 

    E-Print Network [OSTI]

    Chimakurthy, Harshavardhan

    1998-01-01

    Of the 20 million tons of bottom ash and boiler slag generated annually in the United States less than 40 percent is used. The eastern half of Texas is served by 18 coal burning electric power generating plants which produce approximately 3...

  3. Life-Cycle Environmental and Economic Assessment of Using Recycled Materials for Asphalt Pavements

    E-Print Network [OSTI]

    Horvath, Arpad

    2003-01-01

    1993] MOEE. Spent Foundry Sand - Alternative Uses Study.Flue Gas Scrubber Material Foundry Sands Kiln Dusts Mineralin highway construction is foundry sand. Silica sand coated

  4. Investigation of Noise and Durability Performance Trends for Asphaltic Pavement Surface Types: Three-Year Results

    E-Print Network [OSTI]

    Lu, Qing; Kohler, Erwin R.; Harvey, John T; Ongel, Aybike

    2009-01-01

    retain its permeability longer. Old concrete surfaces withretain its permeability longer. Old concrete surfaces withconcrete, decibel (dB), noise, absorption, macrotexture, microtexture, open-graded, gap-graded, dense- graded, onboard sound intensity, permeability,

  5. The effect of construction variables on the dynamic modulus of asphalt treated base courses 

    E-Print Network [OSTI]

    Moeller, William Ernest

    1970-01-01

    were taken the confining pressure was raised to 20 psi and the procedure repeated. The same sequence was repeated for a confining prossnre of 40 psi. 37 Unconfined Comcression Test The unconfined compression test has long been used in the testing... the recorder load versus time plot. No other instrumentation was utilized in this test. The Texas High?ay Department procedure for unconfined compression testing of bituminous mixtures specifies a specimen temperature of 140 F and a rate of loading...

  6. A program to design asphalt concrete overlays to mitigate reflection cracking 

    E-Print Network [OSTI]

    Satyanarayana Rao, Sindhu

    2002-01-01

    . Various engineering reinforcing grids have been used in recent years to mitigate the occurrence and propagation of reflection cracking. Reinforcing grids made of fiberglass or polypropylene has been used for this purpose. The main objectives...

  7. The application of triaxial compression tests to the design of sand-asphalt paving mixtures 

    E-Print Network [OSTI]

    Ritter, Leo J

    1940-01-01

    of Changes in Sand. Orading upon the JLngle of Internal Friction III. Effect of the Initial Void Ratio upon ths ' ingle of Internal friction (Pine Sand. ) . . . . . . . Page 31 35 IV. Xffect oi Dust on the Angle of Internal Jriction in Sand Nixes... after Failure . . , 24 S. Nffsct of Changes in Sand. Grading on the Angle of Internal Friction . . . . . . '. . . . . . . . . . . . . . . . . 32 Relation between ths Angle of Internal Friction ank Initial Yolk Ratio (Fine Sank...

  8. Taphonomy and paleoecology of asphaltic Pleistocene vertebrate deposits of the western Neotropics

    E-Print Network [OSTI]

    Lindsey, Emily Leigh

    2013-01-01

    Taphonomy  and  sedimentology  of  Arikaree  (lower  Gary.  (2009).  Sedimentology  and  stratigraphy:  Wiley.  using  megafauna,  sedimentology,  radiocarbon,  and  

  9. Water Quality and Hydrologic Performance of a Porous Asphalt Pavement as a Storm-Water

    E-Print Network [OSTI]

    Strategy in a Cold Climate Robert M. Roseen, Ph.D., P.E., D.WRE, M.ASCE1 ; Thomas P. Ballestero, Ph.D., P.E., M.ASCE2 ; James J. Houle3 ; Joshua F. Briggs4 ; and Kristopher M. Houle5 Abstract: This study-impact development designs. Peak flows were reduced by 90% to 0:58 m3 =s=km2 Æ 0:74 in comparison with standard

  10. New Cool Roof Coatings and Affordable Cool Color Asphalt | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Financing Tool Fits the BillDepartmentSites KDFNationalNavy 1 GeothermalNew BondEnergy New Cool

  11. Y-12's rough roads smoothed over with recycled asphalt | Y-12 National

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDidDevelopmentatabout Who Works for NIF &Y-12 wastes not and

  12. Y-12's rough roads smoothed over with 23,000 tons of recycled asphalt |

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-SessionsSouthReport forRetirementAdministrationWayne| National

  13. The utilization of flue gas desulfurization waste by-products in construction brick 

    E-Print Network [OSTI]

    Berryman, Charles Wayne

    1992-01-01

    Millions of tons of waste by-products from Texas coal burning plants are produced each year. Two common byproducts are the fuel ashes and calcium sulfate (gypsum). Fuel ashes result from the burning of coal. Gypsum is a byproduct of the air...

  14. Design of fuel efficient brick kiln for ceramic water filter firing in Ghana

    E-Print Network [OSTI]

    Adjorlolo, Eric (Eric James Kofi)

    2007-01-01

    Ceramic water filters are currently produced in Ghana in order to provide a household solution to contaminated water. These filters, locally branded with the name Kosim filter by originating from Potters for Peace-Nicaragua, ...

  15. 6th Annual Clinical Research Symposium Beyond the Bricks and Mortar

    E-Print Network [OSTI]

    Chisholm, Rex L.

    of an evaluation form. Nurses seeking contact hours must also provide their license number at the time of registration. This activity has been submitted to the Ohio Nurses Association for approval to award contact

  16. Recycle of Wastes of Clay Brick Industry for Producing Eco-cement 

    E-Print Network [OSTI]

    Amin, A. M

    2010-01-01

    factors as type, degree of crystallinty, and fineness of the used pozzolana in addition to the ESL-IC-10-10-09 Proceedings of the Tenth International Conference for Enhanced Building Operations, Kuwait, October 26-28, 2010 curing conditions (4... for Enhanced Building Operations, Kuwait, October 26-28, 2010 strength of the hardened specimens decreases with increasing waste material content in the mix. The continuous growth of the compressive strength is mainly due to the formation and accumulation...

  17. "Brick-and-Mortar" Self-Assembly Approach to Mesoporous Carbon

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired SolarAboutXuRod Hunt (208) 386-52542 120 Federal ColumbiaUsing

  18. Numerical analysis of masonry-infilled reinforced concrete frames subjected to seismic loads and experimental evaluation of retrofit techniques

    E-Print Network [OSTI]

    Koutromanos, Ioannis

    2011-01-01

    g) Acceleration (g) Los Gatos (Loma Prieta, 1989) time (sec)1940 Takatori Sylmar Los Gatos SA (g) SA (g) El Centro 19791940 Takatori Sylmar Los Gatos El Centro 1979 Chy084 Rinaldi

  19. Remaining Sites Verification Package for the 100-B-18, 184-B Powerhouse Debris Pile, Waste Site Reclassification Form 2007-020

    SciTech Connect (OSTI)

    L. M. Dittmer

    2007-11-30

    The 100-B-18 Powerhouse Debris Pile contained miscellaneous demolition waste from the decommissioning activities of the 184-B Powerhouse. The debris covered an area roughly 15 m by 30 m and included materials such as concrete blocks, mixed aggregate/concrete slabs, stone rubble, asphalt rubble, traces of tar/coal, broken fluorescent lights, brick chimney remnants, and rubber hoses. In accordance with this evaluation, the verification sampling results support a reclassification of this site to Interim Closed Out. The results of verification sampling show that residual contaminant concentrations do not preclude any future uses and allow for unrestricted use of shallow zone soils. The results also demonstrate that residual contaminant concentrations are protective of groundwater and the Columbia River.

  20. Residential Behavioral Savings: An Analysis of Principal Electricity End Uses in British Columbia

    E-Print Network [OSTI]

    Tiedemann, Kenneth Mr.

    2013-01-01

    survey: unplugging brick chargers when not in use, turningto unplugging unused brick chargers (33%). The behavioralUnplug unused brick chargers Turn off TV no one watching

  1. Decontamination of surfaces by blasting with crystals of H{sub 2}O and CO{sub 2}

    SciTech Connect (OSTI)

    Benson, C.E.; Parfitt, J.E.; Patton, B.D.

    1995-02-01

    A major mission of the US Department of Energy during the 1990s is site and environmental cleanup. In pursuit of this mission, numerous remediation projects are under way and many others are being planned at Oak Ridge National Laboratory (ORNL). In this report, tests using two proposed methods for decontaminating surfaces one using water ice crystals [Crystalline Ice Blast (CIB)], the other using dry ice crystals (CO{sub 2} Cleanblast{trademark}) -- are described. Both methods are adaptations of the commonly used sand blasting technology. The two methods tested differ from sand blasting in that the particles are not particularly abrasive and do not accumulate as particles in the wastes. They differ from each other in that the CO{sub 2} particles sublime during and after impact and the ice particles melt. Thus, the two demonstrations provide important information about two strong candidate decontamination methodologies. Each process was tested at ORNL using contaminated lead bricks and contaminated tools and equipment. Demonstrations with the prototype Crystalline Ice Blast and the CO{sub 2} Cleanblast systems showed that paint, grease, and oil can be removed from metal, plastic, asphalt, and concrete surfaces. Furthermore, removal of contamination from lead bricks was highly effective. Both processes were found to be less effective, under the conditions tested, with contaminated tools and equipment that had chemically bonded contamination or contamination located in crevices since neither technology abrades the substrates or penetrates deeply into crevices to remove particulates. Some process improvements are recommended.

  2. Draft Closure Plan

    Office of Environmental Management (EM)

    asphalt pad, the materials associated with the asphalt pad (e.g., concrete ringwall, sumps, liner) and a minimum of six inches of the base course and soil underlying the asphalt...

  3. The neutron spectrum from Li7 + H2 and energy levels of Be8 

    E-Print Network [OSTI]

    Trail, Carroll Clark

    1956-01-01

    for asphalt absorption measurement, using a density gradient column, was developed to measure asphalt absorption in single aggregate particles at a higher precision level. Experimental results showed that asphalt absorption correlated very well with the void...

  4. Development of Energy Balances for the State of California

    E-Print Network [OSTI]

    Murtishaw, Scott; Price, Lynn; de la Rue du Can, Stephane; Masanet, Eric; Worrell, Ernst; Sahtaye, Jayant

    2005-01-01

    to obtain, the consumption of lubricants and asphalt andto the reported consumption of lubricants, asphalt, roadlubricants, asphalt, and road oil. Data Sources and Data Issues Data for petroleum product consumption

  5. Asphalt Pavement Aging and Temperature Dependent Properties through a Functionally Graded Viscoelastic Model, Part-II: Applications

    E-Print Network [OSTI]

    Paulino, Glaucio H.

    products obtained through fractional distillation of crude oil or petroleum. Due to its organic nature - Mirza and Witczak [5] refers to them as short term hardening, which occurs during the mix production by the "Global Aging Model" used

  6. Probabilistic analysis of air void structure and its relationship to permeability and moisture damage of hot mix asphalt 

    E-Print Network [OSTI]

    Castelblanco Torres, Adhara

    2006-04-12

    ............................24 Probabilistic Analysis of Air Void Size and Permeability..........................29 Summary .....................................................................................................50 IV THE RELATIONSHIP BETWEEN AIR VOID... ..............................................................................................................................106 ix LIST OF FIGURES FIGURE Page 1 Schematic of the X-ray CT scanner. .....................................................................16 2 X-ray CT images of an LKC specimen: (a) grey scale image...

  7. Experimental Study on Shear Fatigue Behavior and Stiffness Performance of Warm Mix Asphalt by adding Synthetic Wax

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    by adding Synthetic Wax C. Petita , A. Milliena , F. Canestrarib , V. Pannunziob , A. Virgilib a Université.petit@unilim.fr , Phone : +33555934519 Abstract Synthetic waxes produced by standard and registered processes may be used. The present article serves to compare the mechanical performance of a WMA produced by adding synthetic wax

  8. Geocell-Reinforced Unpaved and Paved Roads with Recycled Asphalt Pavement (RAP) Bases: Experimental Study and Damage Model Development

    E-Print Network [OSTI]

    Thakur, Jitendra Kumar

    2013-08-31

    …………………………………….. 146 LWD test results…………………………………………………………. 148 Properties of cored HMA samples…………………………………….. 152 5.4.2 Recorded surface deformation…………………………………………. 153 5.4.3 Surface permanent deformation………………………………………... 154 5...………………………………. Fig. 5.3.2 Paved road test sections………………………………………… 138 Fig. 5.3.3 Light Weight Deflectometer (LWD) test on subgrade…………. 140 Fig. 5.3.4 Tell-tale measurements...

  9. Modeling Hot Mix Asphalt Compaction Using a Thermodynamics Based Compressible Viscoelastic Model within the Framework of Multiple Natural Configurations 

    E-Print Network [OSTI]

    Koneru, Saradhi

    2011-10-21

    description of HMA. This framework has a reasonably general structure within which a host of dissipative processes can be de- scribed. This framework, to model HMA, recognizes the change in the microstructure of the material through the changes...

  10. A study of sand-asphalt mixtures: a constitutive model based on a thermomechanical framework and experimental corroboration 

    E-Print Network [OSTI]

    Ravindran, Parag

    2009-06-02

    TABLE OF CONTENTS CHAPTER Page I INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . 1 A. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 1 B. Focus of Research . . . . . . . . . . . . . . . . . . . . . . . 2 C. Outline... the reference and current configurations. The motion assigns a one-to-one mapping between points X ? ?R and points x ? ?c(t), at each t, i.e., x = ??R(X,t). (2.1) The motion is assumed to have sufficient smoothness to enable all operations defined subsequently...

  11. Electrochemical assessment and service-life prediction of mechanically stabilized earth walls backfilled with crushed concrete and recycled asphalt pavement 

    E-Print Network [OSTI]

    Esfeller, Michael Watts, Jr.

    2009-06-02

    A Mechanically Stabilized Earth (MSE) wall is a vertical grade separation that uses earth reinforcement extending laterally from the wall to take advantage of earth pressure to reduce the required design strength of the ...

  12. Application of Direct Tension Testing to Laboratory Samples to Investigate the Effects of Hot Mix Asphalt Aging 

    E-Print Network [OSTI]

    Padigala, Meghana 1989-

    2012-12-07

    of the requirements for the degree of MASTER OF SCIENCE Approved by: Chair of Committee, Amy Epps Martin Committee Members, Charles Glover Robert Lytton Head of Department, John Niedzwecki December 2012 Major Subject: Civil Engineering... ACKNOWLEDGEMENTS I would like to thank my committee chair, Dr. Epps Martin for her constant encouragement, support and invaluable input in this study. This study would not have been possible without her leadership and enthusiasm. I am thankful to Dr. Glover...

  13. We are going to use a plank of wood, a brick, sandpaper, and an elastic cord to mimic earthquake mechanics. Although pulled with a constant velocity, the brick will repeatedly slide and then

    E-Print Network [OSTI]

    Smith-Konter, Bridget

    by rapid release is called elastic rebound. Energy, friction and waves. At first the rock does not move, so the energy is stored in the elastic cord. The more the elastic cord is stretched, the more energy is stored friction that is resisting motion of the rock. The energy that was slowly stored up within the elastic cord

  14. A study of the feasibility of the increased use of wage incentives in the brick manufacturing industry 

    E-Print Network [OSTI]

    Stringer, James Lewis

    1966-01-01

    process. Q operation; inspection; D transportation;+storage Q Clay mined by dragline from open pits. Stored in shed until needed. 0 Removed from storage upon order 'by front-end loader. Moved by front-end loader to grinders. Q Clay is ground...

  15. Bond Strength Measurements from a TAMU Balanced Bond Wrench in Comparison to Brick Prism ASTM E518 Beam Test 

    E-Print Network [OSTI]

    Choudhary, Rishav

    2015-04-30

    115.8 d2 711.2 m1 5.75 Note: Lengths in millimeter and Weight in kilograms 44 The design analysis is: Design Cross-sectional area of a member (Ad) in mm 2 = 10563.57 mm2 Section modulus of the fractured section of the beam....60 75941.87 0.9326 1-4 4.55 116.44 35498.07 0.4326 1-5 5.89 129.59 44485.58 0.5438 2-1 3.89 109.97 31071.39 0.3779 2-2 7.22 142.64 53406.02 0.6541 2-3 6.45 135.08 48241.56 0.5902 2-4 8.98 159.90 65210.51 0.7999 2-5 7.41 144.50 54680.37 0.6698 3-1 3...

  16. Assistant Professor in Residence Department of Civil and Environmental Engineering

    E-Print Network [OSTI]

    Chandy, John A.

    Polymer-Modified Asphalts Mechanistic-Empirical Pavement Design Guide Implementation Plan, sponsored Transportation Consortium Recycling Asphalt Pavements Containing Modified Binders, sponsored by New England

  17. Microsoft Word - Attachment G2A.doc

    Office of Environmental Management (EM)

    possible microbial degradation in asphalt elements is mitigated with addition 11 of lime. For these reasons, it is thought that design characteristics of asphalt components...

  18. Building America Technology Solutions Case Study: Field Testing...

    Energy Savers [EERE]

    Field Testing an Unvented Roof with Asphalt Shingles in a Cold Climate Building America Technology Solutions Case Study: Field Testing an Unvented Roof with Asphalt Shingles in a...

  19. Caltrans Partnered Pavement Research Program (PPRC) Summary Report: Four Year Period: 2000–2004

    E-Print Network [OSTI]

    Harvey, John T; Monismith, Carl L.; Nokes, William; Coetzee, N. F

    2006-01-01

    5 tests as well as a recycled aggregate base (RAB) used inof Recycled Asphalt Concrete Materials as Aggregate Base.of Recycled Asphalt Concrete Materials as Aggregate Base.

  20. ISET Journal of Earthquake Technology, Paper No. 493, Vol. 44, No. 3-4, Sept.-Dec. 2007, pp. 421444 SEISMIC PERFORMANCE AND FINANCIAL RISK OF MASONRY

    E-Print Network [OSTI]

    Gupta, Vinay Kumar

    Engineering, S.G.S. Institute of Technology & Science, Indore-452003 ABSTRACT Seismic behaviour of a typical

  1. Cover. Insert, ground-shaking damage from the 1949 Puget Sound earthquake to unrein-forced masonry in Seattle, Wash. Photograph by George Cankonen, Seattle Times. Back-

    E-Print Network [OSTI]

    Goldfinger, Chris

    -607-89262-5 95­37559 CIP #12;III CONTENTS VOLUME 2 EARTHQUAKE HAZARDS An Introduction to Predicting Earthquake................................................ 307 GROUND-MOTION PREDICTION Engineering Characterization of Earthquake Strong Ground Motions#12;Cover. Insert, ground-shaking damage from the 1949 Puget Sound earthquake to unrein- forced

  2. Evaluation of Crawlspace Retrofits in Multifamily Buildings

    SciTech Connect (OSTI)

    Rudd, A.

    2014-09-01

    In 2011 and early 2012, Building Science Corporation (BSC) collaborated with Innova Services Corporation on a multifamily community unvented crawlspace retrofit project at Oakwood Gardens in Lansdale, Pennsylvania. BSC provided design consulting services and pre- and post-retrofit evaluation, testing, and data monitoring. The existing condition was a vented crawlspace with an uninsulated floor between the crawlspace and the dwelling units above. The crawlspace was therefore a critically weak link in the building enclosure and was ripe for improvement. Saving energy was the primary interest and goal, but the greatest challenge in this unvented crawlspace retrofit project was working through a crawlspace bulk water intrusion problem caused by inadequate site drainage, window well drainage, foundation wall drainage, and a rising water table during rainy periods. While the unvented crawlspace retrofit was effective in reducing heat loss, and the majority of the bulk water drainage problems had been resolved, the important finding was that some of the wood joists embedded in masonry pockets behind the brick veneer were showing signs of moisture damage.

  3. BUILDING MATERIALS MADE FROM FLUE GAS DESULFURIZATION BY-PRODUCTS

    SciTech Connect (OSTI)

    Michael W. Grutzeck; Maria DiCola; Paul Brenner

    2006-03-30

    Flue gas desulphurization (FGD) materials are produced in abundant quantities by coal burning utilities. Due to environmental restrains, flue gases must be ''cleaned'' prior to release to the atmosphere. They are two general methods to ''scrub'' flue gas: wet and dry. The choice of scrubbing material is often defined by the type of coal being burned, i.e. its composition. Scrubbing is traditionally carried out using a slurry of calcium containing material (slaked lime or calcium carbonate) that is made to contact exiting flue gas as either a spay injected into the gas or in a bubble tower. The calcium combined with the SO{sub 2} in the gas to form insoluble precipitates. Some plants have been using dry injection of these same materials or their own Class C fly ash to scrub. In either case the end product contains primarily hannebachite (CaSO{sub 3} {center_dot} 1/2H{sub 2}O) with smaller amounts of gypsum (CaSO{sub 4} {center_dot} 2H{sub 2}O). These materials have little commercial use. Experiments were carried out that were meant to explore the feasibility of using blends of hannebachite and fly ash mixed with concentrated sodium hydroxide to make masonry products. The results suggest that some of these mixtures could be used in place of conventional Portland cement based products such as retaining wall bricks and pavers.

  4. 480 THE CANADIAN JOURNAL OF CHEMICAL ENGINEERING VOLUME 84, AUGUST 2006 INTRODUCTION

    E-Print Network [OSTI]

    Hussein, Ibnelwaleed A.

    . (2001) modified asphalt binder using recycled polymers like polyethylenes, polypropylenes, polyetherpoly. Many investigations were performed on polymer modified asphalt (PMA), where asphalt binder is modified by different types of polymers. Goodrich (1988) related asphalt binder and PMA performance to the performance

  5. Improving the Carbon Dioxide Emission Estimates from the Combustion of Fossil Fuels in California

    E-Print Network [OSTI]

    de la Rue du Can, Stephane

    2010-01-01

    Lubricants Asphalt Waxes Special Naphtha Petrochem feedstocks Other Petro Prods Coal Net reconciliation error Total Consumption

  6. Vitrification of organics-containing wastes

    DOE Patents [OSTI]

    Bickford, D.F.

    1995-01-01

    A process for stabilizing organics-containing waste materials and recovery metals therefrom, and a waste glass product made according to the process are described. Vitrification of wastes such as organic ion exchange resins, electronic components and the like can be accomplished by mixing at least one transition metal oxide with the wastes, and, if needed, glass formers to compensate for a shortage of silicates or other glass formers in the wastes. The transition metal oxide increases the rate of oxidation of organic materials in the wastes to improve the composition of the glass-forming mixture: at low temperatures, the oxide catalyzes oxidation of a portion of the organics in the waste; at higher temperatures, the oxide dissolves and the resulting oxygen ions oxidize more of the organics; and at vitrification temperatures, the metal ions conduct oxygen into the melt to oxidize the remaining organics. In addition, the transition metal oxide buffers the redox potential of the glass melt so that metals such as Au, Pt, Ag, and Cu separate form the melt in the metallic state and can be recovered. After the metals are recovered, the remainder of the melt is allowed to cool and may subsequently be disposed of. The product has good leaching resistance and can be disposed of in an ordinary landfill, or, alternatively, used as a filler in materials such as concrete, asphalt, brick and tile.

  7. Vitrification of organics-containing wastes

    DOE Patents [OSTI]

    Bickford, D.F.

    1997-09-02

    A process is described for stabilizing organics-containing waste materials and recovering metals therefrom, and a waste glass product made according to the process is also disclosed. Vitrification of wastes such as organic ion exchange resins, electronic components and the like can be accomplished by mixing at least one transition metal oxide with the wastes, and, if needed, glass formers to compensate for a shortage of silicates or other glass formers in the wastes. The transition metal oxide increases the rate of oxidation of organic materials in the wastes to improve the composition of the glass-forming mixture: at low temperatures, the oxide catalyzes oxidation of a portion of the organics in the waste; at higher temperatures, the oxide dissolves and the resulting oxygen ions oxidize more of the organics; and at vitrification temperatures, the metal ions conduct oxygen into the melt to oxidize the remaining organics. In addition, the transition metal oxide buffers the redox potential of the glass melt so that metals such as Au, Pt, Ag, and Cu separate from the melt in the metallic state and can be recovered. After the metals are recovered, the remainder of the melt is allowed to cool and may subsequently be disposed of. The product has good leaching resistance and can be disposed of in an ordinary landfill, or, alternatively, used as a filler in materials such as concrete, asphalt, brick and tile. 1 fig.

  8. Application of Metagenomics for Identification of Novel Petroleum Hydrocarbon Degrading Enzymes in Natural Asphalts from the Rancho La Brea Tar Pits

    E-Print Network [OSTI]

    Baquiran, Jean-Paul Mendoza

    2010-01-01

    and characterization of long-chain-alkane degrading Bacillus thermoleovorans from deep subterranean petroleum reservoirs.characterization of microbial assemblages associated with high- temperature petroleum reservoirs.

  9. Application of Metagenomics for Identification of Novel Petroleum Hydrocarbon Degrading Enzymes in Natural Asphalts from the Rancho La Brea Tar Pits

    E-Print Network [OSTI]

    Baquiran, Jean-Paul Mendoza

    2010-01-01

    of petroleum hydrocarbon-contaminated ground water: Theof petroleum hydrocarbon-contaminated ground water: The

  10. Application of Metagenomics for Identification of Novel Petroleum Hydrocarbon Degrading Enzymes in Natural Asphalts from the Rancho La Brea Tar Pits

    E-Print Network [OSTI]

    Baquiran, Jean-Paul Mendoza

    2010-01-01

    Bioremediation of petroleum hydrocarbon-contaminated ground water:Bioremediation of petroleum hydrocarbon-contaminated ground water:dioxide and water (Heitzer and Sayler, 1993). Bioremediation

  11. A Methodology of Quantifying Precipitation Exposure for Wet-Weather Collisions and Evaluating Effectiveness of Open-Grade Asphalt Concrete as a Countermeasure

    E-Print Network [OSTI]

    Chan, Ching-Yao; Jin, Eui-Jae; Oh, Soon Mi; Ragland, David R

    2010-01-01

    of a road accident in rainy weather. Accident Analysis andseverity and recorded weather. J. Safety Research. Vol. 29,of rainfall and other weather variables with road traffic

  12. Application of Metagenomics for Identification of Novel Petroleum Hydrocarbon Degrading Enzymes in Natural Asphalts from the Rancho La Brea Tar Pits

    E-Print Network [OSTI]

    Baquiran, Jean-Paul Mendoza

    2010-01-01

    been converted to natural gas, liquid crude oil, shale oil,been converted to natural gas, liquid crude oil, shale oil,

  13. Application of Metagenomics for Identification of Novel Petroleum Hydrocarbon Degrading Enzymes in Natural Asphalts from the Rancho La Brea Tar Pits

    E-Print Network [OSTI]

    Baquiran, Jean-Paul Mendoza

    2010-01-01

    WITH BIODEGRADATION OF CRUDE-OIL IN THE OUACHITA MOUNTAINS,A SPHALTS AND H EAVY O IL Crude oil is an extremely complexto natural gas, liquid crude oil, shale oil, tars and

  14. To the Graduate Council: I am submitting herewith a thesis written by James Robert Wilson entitled "A

    E-Print Network [OSTI]

    Abidi, Mongi A.

    , is described. The Sensor Brick System, a mobile robotic system infused with artificial intelligence, is derived

  15. Self-Assembly of Molecular Brick Wall and Molecular Honeycomb from Nickel(II) Macrocycle and 1,3,5-Benzenetricarboxylate

    E-Print Network [OSTI]

    Paik Suh, Myunghyun

    -assembly of S ) 0 Ni(II) macrocyclic complex containing hydroxyl pendent chains and 1,3,5-benzenetricarboxylate (BTC-ray crystal structures indicate that each Ni(II) macrocycle binds two BTC3- in the trans position and each BTC(II) macrocyclic complexes and six BTC3- anions. The rings are extended to form a 2-D layer. The layers are stacked

  16. The bricks, clicks, economics and mortar of contemporary retail : the consequences that retailer storing strategies and retail performance across markets have on real estate investments

    E-Print Network [OSTI]

    Fagan, Kevin William

    2011-01-01

    The retail industry in the 21st century is undergoing a confluence of transformative changes. In this paper we discuss particularly noteworthy changes related to demography, retail economics and the Internet. We note how, ...

  17. Is a Meta-Analysis a Foundation, or Just Another Brick? Comment on Meltzer, McNulty, Jackson, and Karney (2014)

    E-Print Network [OSTI]

    Reber, Paul J.

    2014-01-01

    research can complement evolutionary perspectives and vice versa. Nevertheless, Meltzer et al. (2014 physical attractiveness is more strongly associated with relationship satisfaction for men than for women with the trajectory of relationship satisfaction for women than for men. As noted by Eastwick, Luchies, et al. (in

  18. Is a Meta-analysis a Foundation, or Just Another Brick? Comment on Meltzer, McNulty, Jackson, and Karney (2014)

    E-Print Network [OSTI]

    Reber, Paul J.

    2014-01-01

    psychological topics. Close relationships re- search can complement evolutionary perspectives and vice versa physical attractiveness is more strongly associated with relationship satisfaction for men than for women for women than for men. As noted by Eastwick, Luchies, et al. (in press), in paradigms where participants

  19. Contribution of Building Materials to Urban Wet-Weather Pollutant

    E-Print Network [OSTI]

    Clark, Shirley E.

    . · Stabilizing additives include cellulose fiber, rock wool fiber, and/or polymers. · Road runoff has been shown. Asphalt · Khandal et al. (1995) investigated incorporation recycled asphalt pavement (RAP) into new

  20. DEVELOPMENT OF A RAPID TEST TO DETERMINE MOISTURE SENSTIVITY OF HMA (SUPERPAVE) MIXTURES

    E-Print Network [OSTI]

    Shiwakoti, Harihar

    2007-12-14

    Exiting test methods to determine moisture sensitivity in hot mix asphalt are time consuming and inconsistent. This research focused on wheel tracking devices to develop a rapid test method to evaluate moisture sensitivity. The Asphalt Pavement...

  1. Technical Report Documentation Page Form DOT F 1700.7 (8-72) Reproduction of completed page authorized

    E-Print Network [OSTI]

    revenues from the State of Texas. Project title: Micro Crack Growth in Recycled Asphalt Mixtures 16, while it excludes aggregate-asphalt binder interactions. Furthermore, this research also investigated

  2. Surface performance grading and grade selection process for surface treatment binders 

    E-Print Network [OSTI]

    Barcena Mendoza, Roberto

    2001-01-01

    ) or performance-graded (PG) asphalt binder specification was developed in the 1990's to measure binder properties directly related to hot mix asphalt concrete (HMAC) performance and included material characterization at low, intermediate, and high temperatures...

  3. Cool Roofs | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    overlapping panels made from a variety of materials such as fiberglass asphalt, wood, polymers, or metals. How they can be made cool: Buy cool asphalt shingles, which use specially...

  4. World War I: A past that will not pass away 

    E-Print Network [OSTI]

    Joffe, Josef

    2013-09-19

    ) by controlling thermal properties of the construction materials. To change thermal properties of asphalt concrete, expanded polypropylene (EPP) pellet and graphite were selected as the additives and mixed into asphalt concrete. Experimental tests are classified...

  5. Evaluation of I-10 Pomona (07-181304) Long-Life Pavement Rehabilitation Costs

    E-Print Network [OSTI]

    Harvey, John T; Santero, Nicholas J; G, Mary Fermo

    2005-01-01

    Treated Permeable Base Asphalt Concrete (Type B) PlacePermeable Base, Retrofit Dowels, Tie Bars, Concrete Spall

  6. Building America Best Practices Series, Volume 13 - Energy Performance...

    Energy Savers [EERE]

    Insulation Retrofit of Mass Masonry Wall Assemblies Building America Efficient Solutions for Existing Homes Case Study: Deep Energy Retrofit of 1910 House, Portland, Oregon...

  7. An Evaluation of Ethyl Silicate-Based Grouts for Weathered Silicate Stones

    E-Print Network [OSTI]

    Dolph, Brittany Helen

    2014-01-01

    evaluation of hydraulic lime grouts for the strengthening ofAnalysis of Hydraulic Lime Grouts for Masonry Repair. ”are almost exclusively lime- and cement- based products.

  8. Building America Expert Meeting: Interior Insulation Retrofit...

    Broader source: Energy.gov (indexed) [DOE]

    The Building Science Corporation team held an Expert Meeting on Interior Insulation Retrofit of Mass Masonry Wall Assemblies on July 30, 2011, at the Westford Regency Hotel in...

  9. Transient Cold-Climate Building Foundation Hygrothermal Experimental...

    Open Energy Info (EERE)

    of two years of continuous transient experimental measurements on the hygrothermal performance of concrete masonry block walls in a full basement in a cold climate (US DOE...

  10. Contaminants in Buildings and Occupied Spaces as Risk Factors for Occupant Symptoms in U.S.

    E-Print Network [OSTI]

    Mendell, M.J.; Mirer, A.; Lei-Gomez, Q.

    2008-01-01

    masonry exterior walls (cough, eye symptoms, and fatigue/upper respiratory symptoms, cough, eye symptoms, fatigue/or chest tightness), cough, upper respiratory (stuffy or

  11. *Contact lens wearers must be aware of additional hazards due to dusty or chemical

    E-Print Network [OSTI]

    California at San Diego, University of

    , grinding, machining, drilling, chiseling, riveting, sanding, masonry, chainsaw work Requires side protection For severe exposure HEAT Furnace operations, pouring, casting, hot dipping, cutting, welding

  12. Building America Case Study: Retrofit Measure for Embedded Wood...

    Energy Savers [EERE]

    Existing Homes Building America Case Study Retrofit Measures for Embedded Wood Members in Insulated Mass Masonry Walls Lawrence, Massachusetts PROJECT INFORMATION Project Name: The...

  13. Expeditious Data Center Sustainability, Flow, and Temperature Modeling: Life-Cycle Exergy Consumption Combined with a Potential Flow Based, Rankine Vortex Superposed, Predictive Method

    E-Print Network [OSTI]

    Lettieri, David

    2012-01-01

    Sustainability Case Study Example: Brick and Mortar vs. ShippingSustainability Case Study Example: Brick and Mortar vs. Shippingsustainability ramifications which could be captured with a LCEA. For example, each shipping

  14. Valorization of boiler ash in alkali activated material

    E-Print Network [OSTI]

    Laracy, Michael Edward

    2015-01-01

    For centuries the clay fired brick has been the most popular building material in India due to its local availability and low cost. Despite the growing demand for bricks, some negative environmental and social impacts ...

  15. Located in downtown Tucson, Armory Park del Sol finds its architectural inspiration in the surrounding

    E-Print Network [OSTI]

    flooring Energy Efficient ~ Photovoltaic electric power generating systems ~ Solar water heaters with on- demand water heater backup ~ Dual pane high efficiency windows ~ Masonry wall superstructure is concrete masonry super structure ~ Termite proof metal studs ~ Copper water lines Easy Access ~ Extra-wide hallways

  16. ISET Journal of Earthquake Technology, Paper No. 449, Vol. 41, No. 2-4, June-December 2004, pp. 233-247 SEISMIC PERFORMANCE ASSESSMENT OF REINFORCED

    E-Print Network [OSTI]

    Gupta, Vinay Kumar

    representative buildings according to displacement-based seismic design methodologies, as recommended by FEMA-273 the building partially inoperative. KEYWORDS: Performance-Based Design, Seismic Assessment, Masonry Infilled-247 SEISMIC PERFORMANCE ASSESSMENT OF REINFORCED CONCRETE STRUCTURES WITH MASONRY INFILLED PANELS: THE CASE

  17. The Great British Columbia ShakeOut Annual Provincial-Wide Earthquake Drill

    E-Print Network [OSTI]

    Kavanagh, Karen L.

    , overpasses, power lines and buildings made of masonry or glass as quickly and safely as possible. Stay away from buildings made of masonry or glass, walls and power lines For more information on what to do after the shaking stops, please review the following resources: Earthquake and Tsunami Smart Manual

  18. he project focusses upon the changing role of physical intervention and manage-

    E-Print Network [OSTI]

    Davies, Christopher

    Sustainability knowledge transfer 6 Energy Concrete/masonry housing and energy 6 Renovation using steel/masonry housing and energy 6 Renovation using steel technologies 3 Power Engineering Cavitation in large hydro FOR CONSTRUCTION AND THE BUILT ENVIRONMENT Buildings Renovation using steel technologies 3 Communications

  19. ME 356 -LEGO Machine Design Project Description

    E-Print Network [OSTI]

    Sniadecki, Nathan J.

    PART NAME QTY PART NAME QTY 8 tooth gear 4 2x1 brick with hole 6 16 tooth gear 3 4x1 brick with holes 4 24 tooth gear 2 8x1 brick with holes 2 40 tooth gear 1 Bushing 10 Worm gear 1 Belt Wheel 4 Rack (rack) Joints, 9) Welds, and 10) Gears. #12;

  20. Building America Case Study: Field Testing an Unvented Roof with Asphalt Shingles in a Cold Climate, Boilingbrook, Illinois (Fact Sheet), Technology Solutions for New and Existing Homes, Energy Efficiency & Renewable Energy (EERE)

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based Fuels ResearchofDerivativeCold Climate FoundationTotal Heating andTesting

  1. Microsoft Word - Attachment G2B.doc

    Office of Environmental Management (EM)

    to heal if deformed. Shielded from ultraviolet radiation and mixed with hydrated lime to 25 inhibit microbial degradation, the longevity of the asphalt will be great....

  2. Life Cycle Assessment of Pavements: A Critical Review of Existing Literature and Research

    E-Print Network [OSTI]

    Santero, Nicholas

    2010-01-01

    pavements still consume more energy, although only 0.3 toalternatives generally consume more energy, albeit only withfeedstock energy included, the asphalt designs consume two

  3. Permeable Pavements, Green Roofs, and Cisterns

    E-Print Network [OSTI]

    Hunt, William F.

    , and water harvesting through them, such as asphalt and con- systems or cisterns. This new fact sheet crete storage of rainwater. Permeable pavements are least expensive a

  4. Life-Cycle Water Impacts of U.S. Transportation Fuels

    E-Print Network [OSTI]

    Scown, Corinne Donahue

    2010-01-01

    Recycled asphalt is a better aggregate than virgin aggregaterecycled at the end of a road’s life by undergoing crushing and use as an aggregate.

  5. Development and HVS Validation of Design Tables for Permeable Interlocking Concrete Pavement: Final Report

    E-Print Network [OSTI]

    Li, Hui; Jones, David; Wu, Rongzong; Harvey, John T

    2014-01-01

    porous asphalt, pervious concrete and permeable interlockingasphalt, pervious concrete, and permeable concrete slabs toasphalt, pervious concrete and permeable cast concrete slab

  6. Techniques and Technologies for Field Detection of Asbestos Containing Materials

    Broader source: Energy.gov [DOE]

    Asbestos has been used in numerous applications at DOE sites including sprayed-on fireproofing, asphalt and vinyl floor tile, and asbestos-cement(transite) siding.

  7. Development and HVS Validation of Design Tables for Permeable Interlocking Concrete Pavement: Final Report

    E-Print Network [OSTI]

    Li, Hui; Jones, David; Wu, Rongzong; Harvey, John T

    2014-01-01

    permeability of the porous asphalt and pervious concrete ispermeability was measured according to ASTM C1701 (Standard Test Method for Infiltration Rate of In Place Pervious Concrete,

  8. PowerPoint Presentation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Fe Railyard Park & Plaza * Permeable asphalt blends into gravel tree wells in highly pedestrian areas * Permeable strips are alternated with impermeable surfaces * Extensive...

  9. Building America Whole-House Solutions for New Homes: John Wesley...

    Energy Savers [EERE]

    Tucson, Arizona Case study of John Wesley Miller Companies, who worked with the NAHBRC to build two net-zero energy homes with foam-sheathed masonry walls, low-E windows 2.9 ACH50...

  10. Redevelopment of southern mill towns : a study of Georgetown, South Carolina

    E-Print Network [OSTI]

    Morgan, Robert L. (Robert Lafaye), 1975-

    2004-01-01

    The Georgetown Steel Company (GSC), located in Georgetown, South Carolina, closed and filed for bankruptcy in October 2003. GSC has only been operating since the late 1960s; therefore, it does not contain masonry warehouse ...

  11. International Workshop of Young Doctors in Geomechanics -W(H)YDOC 08 Pereira, De Gennaro & Delage (eds) 2008, Ecole des Ponts ParisTech, Champs-sur-Marne

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    3 rd International Workshop of Young Doctors in Geomechanics - W(H)YDOC 08 Pereira, De Gennaro in geomechanics, Champs-sur- Marne : France (2008)" #12;Figure 2. Interlocking blocks at masonry wall in Peru

  12. Structural systems and tuned mass dampers of super-tall buildings : case study of Taipei 101

    E-Print Network [OSTI]

    Kourakis, Ioannis

    2007-01-01

    The design of the first generation of skyscrapers was based on strength. Heavy masonry cladding and wall curtains used at that period added a considerable amount of stiffness and damping to the structure. Inter-storey ...

  13. Development of technical bases for using infrared thermography for nondestructive evaluation of fiber reinforced polymer composites bonded to concrete

    E-Print Network [OSTI]

    Starnes, Monica Anastasia

    2002-01-01

    Fiber-reinforced polymer (FRP) composites, in the form of pultruded laminates or built-up woven fabrics, are being used widely to strengthen existing concrete and masonry structures. The success of these materials in ...

  14. Structural analysis and assessment of Guastavino vaulting

    E-Print Network [OSTI]

    Reese, Megan L

    2008-01-01

    This thesis studies the behavior and pathologies of the masonry tile structures built by the R. Guastavino Company in order to provide recommendations on their analysis and assessment. Structural analyses of two specific ...

  15. USF System USF USFSP USFSM Number: 10-051

    E-Print Network [OSTI]

    Meyers, Steven D.

    of clean energy, increasing energy efficiency, and diminishing life-cycle impacts and our consumption environments (including water management), transportation, energy, and consumption (waste and recycling to: materials reuse and building renovation, retrofitting, green building, smart masonry, materials

  16. Image

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Work 11 * 04300 - Unit Masonry System. 12 1.3 Reference Documents 13 "Reference Stratigraphy and Rock Properties for the Waste Isolation Pilot Plant (WIPP) Project" 14 by R.D....

  17. The applicability and accuracy of computer modeling in regards to acoustical scattering by a complex geometry

    E-Print Network [OSTI]

    Elliot, William J., S.B. Massachusetts Institute of Technology

    2005-01-01

    The intent of the investigation is to try to characterize the nature of scattered acoustical energy off of the face of a concrete masonry unit with an atypical geometry. The nature of the tests conducted would be in ...

  18. Comprehensive Compaction Monitoring System

    E-Print Network [OSTI]

    of New Asphalt Pavement Do Road-User Charges Make Sense for Texas? More States Are Exploring Alternatives to the Motor Fuels Tax TTI Researchers Contribute to the 2014 TRB Annual Meeting Researcher TEXAS of New Asphalt Pavement 12 Do Road-User Charges Make Sense for Texas? More States Are Exploring

  19. 10 Water Resources and the Urban Environment Tide-induced Air Pressure Fluctuation in Coastal Unsaturated Zones

    E-Print Network [OSTI]

    Jiao, Jiu Jimmy

    such as asphalt pavement of extremely low permeability, soil structures of the reclamation area, and rainfall soil near the coast may also fluctuate in response to sea tides. If the soil is well capped by low-permeability materials such as concrete or asphalt, which is common in the extensively urbanized coastal areas

  20. Co-Sponsored by: Environmental Research Group

    E-Print Network [OSTI]

    2015 Spring Seminar Series April 21, 2015 Gregg 320, 12:30 ­ 2:00 Sustainability in Beauty binders and aggregates is essential to the performance of asphalt mixtures. We used the modified Atomic-modified AFM probes differentiated the performance of different asphalt binders. Results also suggested

  1. Technical Report Documentation Page Form DOT F 1700.7 (8-72) Reproduction of completed page authorized

    E-Print Network [OSTI]

    authorized 1. Report No. SWUTC/13/600451-00062-1 2. Government Accession No. 3. Recipient's Catalog No. 4 additives in the asphalt binder or by foaming the asphalt binder using small percentages of water. The use using four different rates of surface formation and at several different temperatures within the range

  2. WINTER PERFORMANCE ASSESSMENT OF PERMEABLE PAVEMENTS

    E-Print Network [OSTI]

    WINTER PERFORMANCE ASSESSMENT OF PERMEABLE PAVEMENTS A COMPARATIVE STUDY OF POROUS ASPHALT, PERVIOUS CONCRETE, AND CONVENTIONAL ASPHALT IN A NORTHERN CLIMATE BY KRISTOPHER M. HOULE BS, Worcester the University of New Hampshire, the Northern New England Concrete Promotion Association (NNECPA), the Northeast

  3. OKLAHOMA DEPARTMENT OF TRANSPORTATION PAVEMENT AND BRIDGE DECK SMOOTHNESS REQUIREMENTS

    E-Print Network [OSTI]

    is defined. The specification applies to PFC (permeable friction course), OGFC (open graded friction course), HMA (hot mix asphalt), PCCP (P.C. concrete pavement) and Bridge Decks. Areas where 1/8 to 1/2 inch per apply to all types of Portland cement and asphalt concrete pavements as well as bridge decks. ODOT

  4. Greenland Meadows LID Case Study: Economics

    E-Print Network [OSTI]

    Greenland Meadows LID Case Study: Economics Utilizing an LID approach that featured porous asphalt and supporting designs. This case study shows how a combination of porous asphalt and standard pavement design natural underlying soils are mainly clay in composition, which is very prohibitive towards infiltration

  5. Santa Cruz and the Cowell Ranch, 1890-9641

    E-Print Network [OSTI]

    Regional History Project, UCSC Library; Cardiff, George; Calciano, Elizabeth Spedding

    1965-01-01

    tile Cardiff: Yes, cement, lime, plaster, brick -- allbasement, the foundation, is lime rock, three or four feetHe bought some additional lime quarries, lime kilns. The

  6. ENVIRONMENTAL REVIEW FOR CATEGORICAL EXCLUSION DETERMINATION

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mountain Region (RMR) Small Control building which consists of a wood frame, metal roof, and brick exterior. The proposed project will consist of demolishing the current...

  7. Conway Street Apartments: A Multifamily Deep Energy Retrofit...

    Office of Scientific and Technical Information (OSTI)

    CONSORTIUM FOR ADVANCED RESIDENTIAL BUILDINGS; MULTIFAMILY; RETROFIT; ZERO ENERGY; SOLAR THERMAL; DRAIN WATER RECOVERY SYSTEM; DEMAND-CONTROLLED RECIRCULATION SYSTEM; BRICK;...

  8. TITLE AUTHORS SUBJECT SUBJECT RELATED DESCRIPTION PUBLISHER AVAILABILI...

    Office of Scientific and Technical Information (OSTI)

    CONSORTIUM FOR ADVANCED RESIDENTIAL BUILDINGS MULTIFAMILY RETROFIT ZERO ENERGY SOLAR THERMAL DRAIN WATER RECOVERY SYSTEM DEMAND CONTROLLED RECIRCULATION SYSTEM BRICK SPRAY...

  9. Networks, deregulation, and risk : the politics of critical infrastructure protection

    E-Print Network [OSTI]

    Ellis, Ryan Nelson

    2011-01-01

    before Subcommittee on National Security, Emerging Threatsbefore Subcommittee on National Security, Emerging ThreatsEnergy Strategy for National Security. Andover, MA: Brick

  10. Search for spontaneous muon emission from lead nuclei

    E-Print Network [OSTI]

    L. Arrabito; D. Autiero; E. Barbuto; C. Bozza; S. Cecchini; L. Consiglio; M. Cozzi; N. D'Ambrosio; Y. Declais; G. De Lellis; G. De Rosa; M. De Serio; D. Di Ferdinando; A. Di Giovanni; N. Di Marco; L. S. Esposito; G. Giacomelli; M. Giorgini; G. Grella; M. Hauger; M. Ieva; D. B. Ion; I. Janicsko; F. Juget; I. Laktineh; G. Mandrioli; S. Manzoor; A. Margiotta; P. Migliozzi; P. Monacelli; M. T. Muciaccia; L. Patrizii; C. Pistillo; V. Popa; G. Romano; G. Rosa; P. Royole-Degieux; S. Simone; M. Sioli; C. Sirignano; G. Sirri; G. Sorrentino; M. Spurio; V. Tioukov

    2005-08-05

    We describe a possible search for muonic radioactivity from lead nuclei using the base elements ("bricks" composed by lead and nuclear emulsion sheets) of the long-baseline OPERA neutrino experiment. We present the results of a Monte Carlo simulation concerning the expected event topologies and estimates of the background events. Using few bricks, we could reach a good sensitivity level.

  11. 1 2000, Cisco Systems, Inc.1404_07_2000_c1 ArchitectingArchitecting thethe

    E-Print Network [OSTI]

    Ahmad, Sajjad

    1© 2000, Cisco Systems, Inc.1404_07_2000_c1 ArchitectingArchitecting thethe Internet Organization GroupInternet Business Solutions Group #12;21404_07_2000_c1 © 2000, Cisco Systems, Inc. The .The .com'scom's #12;31404_07_2000_c1 © 2000, Cisco Systems, Inc. The Brick&Mortar.The Brick

  12. AC 2011-904: THE IMPACT OF ENGINEERING-BASED SCIENCE IN-STRUCTION ON SCIENCE CONTENT UNDERSTANDING

    E-Print Network [OSTI]

    of Distinguished Teaching where he played with underwater robots, wind tunnels, and LEGO bricks. In 2006-7, he spent the year at ETH in Zurich playing with very very small robots and measuring the lift force directions, in- cluding learning robotics with LEGO bricks and learning manufacturing by building musical

  13. The Practice of Parking Requirements

    E-Print Network [OSTI]

    Shoup, Donald C.

    2006-01-01

    for churches and parking lots that replaced buildings onceThe full cost of the parking lot is incurred to serve a fewbuilt have supersize parking lots that are asphalt eyesores,

  14. Rutting and drainage design methodology for a concrete block pavement 

    E-Print Network [OSTI]

    Poduska, Daryl Jason

    1998-01-01

    Concrete block pavements (CBP) have historically been hics. used in low trafficked applications as an alternative to asphalt and concrete pavement because of their aesthetic quality. However, concrete block pavements have not been used for high...

  15. November, 2014 Beyond Pipes to Watersheds

    E-Print Network [OSTI]

    Wetland Surface WetlandStormwater Wetland Constructed WetlandPorous AsphaltPervious Concrete Permeable Interlocking Concrete Pavers Permeable Interlocking Concrete Pavers Permeable Interlocking Concrete Pavers Permeable Interlocking Concrete Pavers Permeable Interlocking Concrete Pavers Permeable Interlocking

  16. Thermo-Viscoelastic-Viscoplastic-Viscodamage-Healing Modeling of Bituminous Materials: Theory and Computation 

    E-Print Network [OSTI]

    Darabi Konartakhteh, Masoud

    2012-10-19

    for bituminous materials and asphalt mixes. The developed thermodynamic-based framework is general and can be applied for constitutive modeling of different materials such as bituminous materials, soft materials, polymers, and biomaterials. This framework...

  17. Economically and Environmentally Informed Policies for Road Resurfacing: Tradeoffs between Costs and Greenhouse Gas Emissions

    E-Print Network [OSTI]

    Reger, Darren Peter

    2015-01-01

    of a U.S. economic input-output life-cycle assessment model.International Journal of Life Cycle Assessment, 12(6), 365-input–output life cycle assessment of warm mix asphalt

  18. The effect of carbonation after demolition on the life cycle assessment of pavements

    E-Print Network [OSTI]

    Rossick, Katelyn M

    2014-01-01

    The high contribution of CO? emissions associated with pavements has driven research to assess the life cycle of concrete versus asphalt structures and to develop a strategy to reduce the carbon footprint. The life cycle ...

  19. Factors affecting binder properties between production and construction and their impact on quality assurance programs 

    E-Print Network [OSTI]

    Arambula Mercado, Edith

    2002-01-01

    . In Texas, QA testing is done immediately after binder production, regardless of the fact that the material undergoes several storage and transfer processes before it reaches the construction site or hot mix asphalt (HMA) plant. Storage at elevated...

  20. Bioadhesive Alliance

    Broader source: Energy.gov [DOE]

    Bioadhesive Alliance Inc. is a developer and manufacturer of “PiGrid”, bio-based adhesive that is green, low cost, and durable and can be utilized as a substitute to petroleum-based asphalt binder.

  1. A framework for a coarse aggregate classification system 

    E-Print Network [OSTI]

    Peapully, Srikrishna

    1994-01-01

    Coarse aggregates are the major constituents of concrete or asphalt mixtures and are widely used in various construction purposes. A classification system for these aggregates would provide a systematic means of aggregate identification which could...

  2. Using the Multi-Depth Deflectometer to study pavement response 

    E-Print Network [OSTI]

    Yazdani, Jamshed Iqbal

    1989-01-01

    GILT NGV IIAN SIAT NIL T NON 101 ~ PATE OP NEASUGEO OEPLECTION 1000 Figure 23. Comparison of measured and calculated surface deflections (40) 44 bottom of an asphalt pavement is justified, provided that the moduli values used is corrected...

  3. Stormwater Management for UMore Park Molly McClung

    E-Print Network [OSTI]

    Amin, S. Massoud

    from brake dust, oils on asphalt, and pesticides and fertilizer from landscaping. These compounds ground water sources on site. To support the current goals of creating a sustainable, regenerative

  4. Effects of superpave aggregate gradation on permanent deformation 

    E-Print Network [OSTI]

    del Cerro Grau, Jose

    1999-01-01

    In order to improve the performance, durability, and safety of United States roads, the Strategic Highway Research Program (SHRP) was established by Congress in 1987 as a five year research program. SUPERPAVE[] (Superior Performing Asphalt Pavements...

  5. Advanced Tools For Characterizing HMA Fatigue Resistance 

    E-Print Network [OSTI]

    Lawrence, James Jefferies

    2011-02-22

    Accurately and efficiently characterizing the material properties of hot mix asphalt (HMA) is critical to the design and development of pavements that can experience repeated loading for long periods of time and resist ...

  6. Electronics Lab 

    E-Print Network [OSTI]

    Unknown

    2011-08-17

    Moisture damage in asphalt mixes refers to the loss of serviceability due to the presence of moisture. The extent of moisture damage, also called moisture susceptibility, depends on internal and external factors. The ...

  7. New Braunfels HTC 

    E-Print Network [OSTI]

    Unknown

    2011-08-17

    The performance of hot mix asphalt, Portland cement concrete, unbound base, and subbase layers in a pavement are significantly affected by aggregate shape characteristics. Classification of coarse and fine aggregate shape ...

  8. Development of methods to quantify bitumen-aggregate adhesion and loss of adhesion due to water 

    E-Print Network [OSTI]

    Bhasin, Amit

    2007-09-17

    reasons. The objective of this research is to develop experimental and analytical tools to characterize important material properties that influence the moisture sensitivity of asphalt mixes. Quality of adhesion between the aggregate and bitumen binder...

  9. IMPROVING MIX DESIGN AND CONSTRUCTION OF PERMEABLE FRICTION COURSE MIXTURES 

    E-Print Network [OSTI]

    Alvarez Lugo, Allex Eduardo

    2012-02-14

    Permeable friction course (PFC), or new generation open-graded friction course (OGFC) mixtures, are hot mix asphalt (HMA) characterized by high total air voids (AV) content (minimum 18 %) as compared to the most commonly ...

  10. The development of correlations between HMA pavement performance and aggregate shape properties 

    E-Print Network [OSTI]

    McGahan, Jeremy

    2006-04-12

    The physical characteristics of aggregates (form, angularity, and texture) are known to affect the performance of hot mix asphalt (HMA) pavements. Efforts to develop relationships between these aggregate characteristics ...

  11. Evaluation of an alternative bituminous material as a soil stabilizer 

    E-Print Network [OSTI]

    Kim, Yong-Rak

    1999-01-01

    . Consequently, development of a new stabilization material, which is environmentally safe and non-flammable, is desired for replacing cutback asphalts. In this study a petroleum-resin-based (PRB) material was tested to investigate its physical and mechanical...

  12. Agents of seed dispersal : animal--zoochary / Wind--anemonochory

    E-Print Network [OSTI]

    Lysakowski, Lukasz Kamil, 1974-

    2004-01-01

    Agents of seed dispersal is a project designed to address the increase of environmental degradation, which occurs as a result of the perpetual spread of the asphalt and concrete of the contemporary urban situation. Agents ...

  13. 2030 Transportation and Mobility Plan 

    E-Print Network [OSTI]

    Bi-State Metropolitan Planning Organization

    2006-08-11

    The skid resistance of asphalt pavement is a major characteristic that determines the driving safety on a road, especially under wet surface conditions. Skid resistance is primarily a function of the microtexture and ...

  14. Application of Direct Tension Testing to Field Samples to Investigate the Effects of HMA Aging 

    E-Print Network [OSTI]

    Lawrence, James 1973-

    2012-08-27

    There are many factors which contribute to fatigue failure in HMA. While studies have been made with respect to binder aging, little has been done to investigate the effect of aging on the fatigue failure of asphalt mixtures. The lack...

  15. DOE Tour of Zero: The School Street Homes by StreetScape Development...

    Broader source: Energy.gov (indexed) [DOE]

    of 17 The wall moisture control system consists of an asphalt-based, vapor-permeable coating that is painted directly onto the OSB sheathing to provide a weather-resistant...

  16. University of Washington Faculty Council on University Facilities and Services

    E-Print Network [OSTI]

    Van Volkenburgh, Elizabeth

    costs will escalate, driven by rising oil prices and its effect on asphalt · deferred maintenance · loss for the separate trim out space. The lighting upgrade in the Triangle Garage is an ESCO project funded by energy

  17. Technical Report Documentation Page 1. Report No.

    E-Print Network [OSTI]

    aggregates were coated with fine-grained polyethylene, carpet co-product, or cement + styrene butadiene-product, or cement + styrene butadiene rubber latex and used to prepare hot mix asphalt concrete specimens. Only

  18. Effects of aggregate gradation and angularity on VMA and rutting resistance 

    E-Print Network [OSTI]

    Park, Dae-Wook

    2000-01-01

    Specific Gravity of Fine Aggregates. 20 5 FAA Values of Fine Aggregates. 21 6 Design Asphalt Content and VMA Value. . 7 Asphalt Pavement Analyzer (APA) Results. . . . . . . . . . . . . . . . . . . . . . . 8 Analysis of Variance ( = 0. 05) for Average... Maximum Size. . . . . 10 2 FAA versus Rut Depth. . 27 3 Mineral Filler Content versus VMA. . 4 VMA During Superpave Volumetric Mix Design Process. . . . . 5 FAA versus VMA at 4 Percent Air Voids. . . . . . . . 39 40 CHAPTER I INTRODUCTION GENERAL...

  19. Safety considerations for the use of sulfur in sulfur-modified pavement materials 

    E-Print Network [OSTI]

    Jacobs, Carolyn Yuriko

    1980-01-01

    Liquid Sulfur Page v111 ix 33 33 35 IV Symptoms of Poisoning . First Aid SULFUR IN THE PAVING INDUSTRY General Sand-Asphalt-Sulfur Pavements (SAS) ', , Sulfur-Extended Asphalt Pavements (SEA) Sulfur Concrete EVALUATION OF RISKS AND SAFETY... RECOMMENDATIONS General Stationary Sources Mobile Sources Maintenance 40 41 43 43 44 45 46 Hot-Mix Recycling VI EMISSIONS MONITORING METHODS General Area Monitoring - Continuous Samplina Short Term Sampling (" Grab" Sampling) Personnel Monitoring...

  20. Doctrina cristiana en lengua misteca 

    E-Print Network [OSTI]

    Ferná ndez, Benito, 16th cent.

    2010-10-16

    -1 AUTOMATED PROTOCOL FOR ANALYSIS OF DYNAMIC MECHANICAL ANALYZER DATA FROM FINE AGGREGATE ASPHALT MIXES A Thesis by PEDRO CAVALCANTI DE SOUSA Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE August 2010 Major Subject: Civil Engineering ii AUTOMATED PROTOCOL FOR ANALYSIS OF DYNAMIC MECHANICAL ANALYZER DATA FROM FINE AGGREGATE ASPHALT MIXES A Thesis by PEDRO CAVALCANTI DE...

  1. Economic aspects of black bases in Texas 

    E-Print Network [OSTI]

    Schoen, Wayne Ayron

    1976-01-01

    such that an optimal asphalt content for each aggregate type could be determined. Test method Tex-126-E requires that the 6-inches in diameter by 8-inches in height samples be failed in unconfined compression and from these results an optimum asphalt content... procedure and two would not. The purpose of the vacuum saturation procedure was to determine the effect of water on the black base mixtures. At present, an acceptable national standard vacuum saturation procedure does not exist. Therefore, a test...

  2. Evaluation of methods of mixing lime in bituminous paving mixtures in batch and drum plants 

    E-Print Network [OSTI]

    Button, Joseph Wade

    1984-01-01

    . Lime was added in the pugmill of the batch plant, on the cold feed belt, and through the fines feeder of the drum mix plant. The asphalt and aggregates used were characterized in the laboratory. Asphalt concrete mixture tests included laboratory... Maria Road 14 3 Laboratory Test Program for All Mixtures 17 Process by which Lime Slurry was Added to the Individual Aggregates on the Cold Feed Belt Overall Average Air Void Content of Laboratory Mixed and Compacted Samples 19 27 Resilient...

  3. Refractory lining system for high wear area of high temperature reaction vessel

    DOE Patents [OSTI]

    Hubble, David H. (Export, PA); Ulrich, Klaus H. (Duisburg, DE)

    1998-01-01

    A refractory-lined high temperature reaction vessel comprises a refractory ring lining constructed of refractory brick, a cooler, and a heat transfer medium disposed between the refractory ring lining and the cooler. The refractory brick comprises magnesia (MgO) and graphite. The heat transfer medium contacts the refractory brick and a cooling surface of the cooler, and is composed of a material that accommodates relative movement between the refractory brick and the cooler. The brick is manufactured such that the graphite has an orientation providing a high thermal conductivity in the lengthwise direction through the brick that is higher than the thermal conductivity in directions perpendicular to the lengthwise direction. The graphite preferably is flake graphite, in the range of about 10 to 20 wt %, and has a size distribution selected to provide maximum brick density. The reaction vessel may be used for performing a reaction process including the steps of forming a layer of slag on a melt in the vessel, the slag having a softening point temperature range, and forming a protective frozen layer of slag on the interior-facing surface of the refractory lining in at least a portion of a zone where the surface contacts the layer of slag, the protective frozen layer being maintained at or about the softening point of the slag.

  4. Closure Report for Corrective Action Unit 117: Area 26 Pluto Disassembly Facility, Nevada Test Site, Nevada, Revision 0

    SciTech Connect (OSTI)

    Mark Burmeister

    2009-06-01

    This Closure Report (CR) presents information supporting the closure of Corrective Action Unit (CAU) 117: Area 26 Pluto Disassembly Facility, Nevada Test Site, Nevada. This CR complies with the requirements of the Federal Facility Agreement and Consent Order that was agreed to by the State of Nevada; U.S. Department of Energy (DOE), Environmental Management; U.S. Department of Defense; and DOE, Legacy Management. Corrective Action Unit 117 comprises Corrective Action Site (CAS) 26-41-01, Pluto Disassembly Facility, located in Area 26 of the Nevada Test Site. The purpose of this CR is to provide documentation supporting the completed corrective actions and provide data confirming that the closure objectives for CAU 117 were met. To achieve this, the following actions were performed: • Review the current site conditions, including the concentration and extent of contamination. • Implement any corrective actions necessary to protect human health and the environment. • Properly dispose of corrective action and investigation wastes. • Document Notice of Completion and closure of CAU 117 issued by the Nevada Division of Environmental Protection. From May 2008 through February 2009, closure activities were performed as set forth in the Streamlined Approach for Environmental Restoration Plan for Corrective Action Unit 117, Area 26 Pluto Disassembly Facility, Nevada Test Site, Nevada. The purpose of the activities as defined during the data quality objectives process were: • Determine whether contaminants of concern (COCs) are present. • If COCs are present, determine their nature and extent, implement appropriate corrective actions, and properly dispose of wastes. Analytes detected during the closure activities were evaluated against final action levels to determine COCs for CAU 117. Assessment of the data generated from closure activities indicated that the final action levels were exceeded for polychlorinated biphenyls (PCBs) reported as total Aroclor and radium-226. A corrective action was implemented to remove approximately 50 cubic yards of PCB-contaminated soil, approximately 1 cubic foot of radium-226 contaminated soil (and scabbled asphalt), and a high-efficiency particulate air filter that was determined to meet the criteria of a potential source material (PSM). Electrical and lighting components (i.e., PCB-containing ballasts and capacitors) and other materials (e.g., mercury-containing thermostats and switches, lead plugs and bricks) assumed to be PSM were also removed from Building 2201, as practical, without the need for sampling. Because the COC contamination and PSMs have been removed, clean closure of CAS 26-41-01 is recommended, and no use restrictions are required to be placed on this CAU. No further action is necessary because no other contaminants of potential concern were found above preliminary action levels. The physical end state for Building 2201 is expected to be eventual demolition to slab. The DOE, National Nuclear Security Administration Nevada Site Office provides the following recommendations: • Clean closure is the recommended corrective action for CAS 26-41-01 in CAU 117. • A Notice of Completion to the DOE, National Nuclear Security Administration Nevada Site Office is requested from the Nevada Division of Environmental Protection for closure of CAU 117. • Corrective Action Unit 117 should be moved from Appendix III to Appendix IV of the Federal Facility Agreement and Consent Order.

  5. Glass-coating and cleaning system to prevent carbon deposition on coke oven walls

    SciTech Connect (OSTI)

    Takahira, Takuya; Ando, Takeshi; Kasaoka, Shizuki; Yamauchi, Yutaka [Kawasaki Steel Corp., Mizushima, Kurashiki (Japan). Mizushima Works

    1997-12-31

    The new technology for protecting the coking chamber bricks from damage by hard-pushing is described. The technology consists of the glass coating on the wall bricks and a wall cleaner to blow deposited carbon. For the glass coating, a specially developed glaze is sprayed onto the wall bricks by a spraying device developed to completely spray one coking chamber in a few minutes. The wall cleaner is installed on a pusher ram in the facility to automatically blow air at a sonic speed during coke pushing. The life of the glazed layer is estimated to be over two years.

  6. Hanford Site

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    86746-11 White Bluffs High School Fire, 1942 86746-11 White Bluffs High School Fire, 1942 79113-9 Students and Teacher in front of the Red Brick School, White Bluffs, 1916 79113-9...

  7. PROJECT MANGEMENT PLAN EXAMPLES

    Energy Savers [EERE]

    and a lead brick will be removed from the 772-D laboratory. Example 19 6.01.01 Characterization and Hazards Identification Accountable Nuclear Material The inventory of nuclear...

  8. Philip B. Stark Department of Statistics

    E-Print Network [OSTI]

    Stark, Philip B.

    ! Data!" he cried impatiently. "I can't make bricks without clay." ­The Adventure of the Copper Beeches, Sir Arthur Conan Doyle #12;· data plumbing · integrity of the audit trail #12;Now what? · Demand

  9. Revealing the potential of Compressed Earth Blocks : a visual narration

    E-Print Network [OSTI]

    Rabie, Omar

    2008-01-01

    Compressed Earth Blocks (CEB) is a developed earth technology, in which unbaked brick is produced by compressing raw soil using manual, hydraulic, or mechanical compressing machines. Revealing the potential of an affordable ...

  10. Synthesizing Law for Synthetic Biology

    E-Print Network [OSTI]

    Torrance, Andrew W.

    2010-01-01

    , metabolic pathways, cells, viruses, and whole organisms rapidly, inexpensively, and easily. Already, a number of institutions have helped synthetic biology achieve considerable success, both in terms of science and public awareness. The BioBricks Foundation...

  11. Sigma Gamma Tau 

    E-Print Network [OSTI]

    Unknown

    2011-08-17

    Three drums containing potentially contaminated lead bricks were assayed with the Segmented Gamma Scan Neutron Assay System (SGSNAS) at Pacific Northwest National Laboratory's (PNNL) Nondestructive Assay Center. The assay system reported...

  12. Imaging Study of Multi-Crystalline Silicon Wafers Throughout the Manufacturing Process: Preprint

    SciTech Connect (OSTI)

    Johnston, S.; Yan, F.; Zaunbracher, K.; Al-Jassim, M.; Sidelkheir, O.; Blosse, A.

    2011-07-01

    Imaging techniques are applied to multi-crystalline silicon bricks, wafers at various process steps, and finished solar cells. Photoluminescence (PL) imaging is used to characterize defects and material quality on bricks and wafers. Defect regions within the wafers are influenced by brick position within an ingot and height within the brick. The defect areas in as-cut wafers are compared to imaging results from reverse-bias electroluminescence and dark lock-in thermography and cell parameters of near-neighbor finished cells. Defect areas are also characterized by defect band emissions. The defect areas measured by these techniques on as-cut wafers are shown to correlate to finished cell performance.

  13. EXOSKELETONS ARESTRUTTING

    E-Print Network [OSTI]

    Rosen, Jacob

    - Fashioned Future, for example, Bruce Sterling writes of a soldier dying after crashing in his "power-armor, a leaping, brick-busting, lightning-spewing exoskeleton." Today, in Japan and the United States, engineers

  14. Fast multiple gene fragment ligation method based on Type IIs restriction enzyme DraIII

    E-Print Network [OSTI]

    Shi, Zhenyu

    2010-10-31

    With the established BioBrick Assembly standards, ligation of different parts has to be accomplished step by step. It can be time-consuming when dealing with multiple fragment ligation. BBF RFC 61 is developed aimed at ...

  15. Fast multiple gene fragment ligation method based on homologous recombination

    E-Print Network [OSTI]

    Wang, Ruiyan

    2010-10-31

    With the established BioBrick Assembly standards, ligation of different parts has to be accomplished step by step. It can be time-consuming when dealing with multiple fragment ligation. BBF RFC 62 is developed aimed at ...

  16. Multi-layer asymptotic solution for wetting fronts in porous media with exponential moisture diffusivity

    E-Print Network [OSTI]

    Stockie, John

    .1146/((please add article doi)) 1 Stud. Appl. Math. AA:1­29 c 2015 Wiley Periodicals, Inc., A Wiley Company #12 such as wood [20], brick [16] or concrete [10]. Exponential diffusion has also been identified in other

  17. CX-004400: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Repair Brick Support Plates on Connecting Bridges - Building 58CX(s) Applied: B2.3Date: 11/05/2010Location(s): Allegheny City, PennsylvaniaOffice(s): Fossil Energy, National Energy Technology Laboratory

  18. Urban solarium : thermal performance in Boston

    E-Print Network [OSTI]

    Hsu, Juliet Chia-Wen

    2012-01-01

    This thesis addresses the issue of energy efficiency through the lens of thermal performance in the context of urban housing in the city of Boston. Located in the historic brick row house neighborhood of the South End, the ...

  19. For suggestions on many more community service

    E-Print Network [OSTI]

    Hammack, Richard

    Short Pump at 2200 Old Brick Road and at 2626 W. Broad Street, 1.1 miles from the Monroe Park Campus, in the theater, with exhibit maintenance, gardening, as science assistants, at special events, and as camp

  20. Complex system analysis through discrete event simulation

    E-Print Network [OSTI]

    Faranca, Anthony G. (Anthony Gilbert), 1971-

    2004-01-01

    E-commerce is generally thought of as a world without walls. Although a computer monitor may replace a storefront window, the products that are purchased online have to be distributed from a brick and mortar warehouse. ...

  1. LEGO Engineer and RoboLab: Teaching Engineering with LabVIEW from

    E-Print Network [OSTI]

    to offer. College seniors went on to build a computer-controlled milling machine with three degrees, and the milling machine would cut it out of balsa wood. One graduate student built a drop tower out of LEGO bricks

  2. Inter-organizational information sharing of customer data in retail

    E-Print Network [OSTI]

    Tengberg, John C.F. (John Claes Fredrik)

    2013-01-01

    As massive online retailers are putting increasing pressure on the traditional brick-and-mortar retailers, new ways to compete for customers is needed. Identifying customers' behavior and understanding their needs could ...

  3. Yeast dual-affinity biobricks: Progress towards renewable whole-cell biosensors

    E-Print Network [OSTI]

    2015-01-01

    BioBricks: Progress Towards Renewable Whole-Cell Biosensorslow cost, whole-cell “renewable” capture reagent for use inof ultra- low cost “renewable” cell-based reagents, which

  4. IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, VOL. 18, NO. 9, SEPTEMBER 2008 647 Waveguide Microwave Imaging: Spherical

    E-Print Network [OSTI]

    Yakovlev, Vadim

    in a waveguide system. structures or bricks [7], detection of defects in wood slabs [8] and in composite panels [9], detection of porosity in ceramics and molded rubber [10] and monitoring of inhomogeneities

  5. Passive neutron techniques for the nondestructive assay of nuclear material 

    E-Print Network [OSTI]

    Mapili, Gabriel

    2000-01-01

    Three drums containing potentially contaminated lead bricks were assayed with the Segmented Gamma Scan Neutron Assay System (SGSNAS) at Pacific Northwest National Laboratory's (PNNL) Nondestructive Assay Center. The assay system reported...

  6. TES for Residential Settings

    SciTech Connect (OSTI)

    Rutberg, Michael; Hastbacka, Mildred; Bouza, Antonio

    2013-07-31

    The article discusses thermal energy storage approaches for residential buildings. This article addresses both brick bank storage and phase change material technologies. The energy savings and market potential of these thermal energy storage methods are reviewed as well.

  7. MgAl2O4 spinel refractory as containment liner for high-temperature alkali salt containing environments

    DOE Patents [OSTI]

    Peascoe-Meisner, Roberta A [Knoxville, TN; Keiser, James R [Oak Ridge, TN; Hemric, James G [Knoxville, TN; Hubbard, Camden R [Oak Ridge, TN; Gorog, J Peter [Kent, WA; Gupta, Amul [Jamestown, NY

    2008-10-21

    A method includes containing a high-temperature alkali salt containing environment using a refractory containment liner containing MgAl.sub.2O.sub.4 spinel. A method, includes forming a refractory brick containing MgAl.sub.2O.sub.4 spinel having an exterior chill zone defined by substantially columnar crystallization and an interior zone defined by substantially equiaxed crystallization; and removing at least a portion of the exterior chill zone from the refractory brick containing MgAl.sub.2O.sub.4 spinel by scalping the refractory brick containing MgAl.sub.2O.sub.4 spinel to define at least one outer surface having an area of substantially equiaxed crystallization. A product of manufacture includes a refractory brick containing MgAl.sub.2O.sub.4 spinel including an interior zone defined by substantially equiaxed crystallization; and at least one outer surface having an area of substantially equiaxed crystallization.

  8. Help in N.J. for Those Struggling with Energy Costs | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    N.J., times are still tough for some residents. Among the rows of worn brick architecture, though, there are signs of hope, thanks to a local community action agency's...

  9. Programmed path : the conceptual re-enactment of a Charlestown warehouse and dock

    E-Print Network [OSTI]

    Reeves, Sarah Rundquist

    2009-01-01

    Conceptually re-defining the role of a 100-year-old waterfront brick and timber warehouse structure, it is turned inside-out : interior becomes path. Programmatic functions imitate the physical characteristics of a conceptual ...

  10. Evaluation and recommendations for reduction of a silica dust exposure 

    E-Print Network [OSTI]

    Gruben, Raymond L

    2000-01-01

    A brick cutting task was identified as a job with a potential overexposure to crystalline silica dust. A sampling plan was proposed and implemented. Both the NIOSH approved method, using cyclone filters to select out ...

  11. New Whole-House Solutions Case Study: John Wesley Miller, Tucson, Arizona

    SciTech Connect (OSTI)

    none,

    2013-09-01

    This builder worked with the National Association of Home Builders Research Center to build two net-zero energy homes with foam-sheathed masonry walls, low-E windows 2.9 ACH50 air sealing, transfer grilles, ducts in insulated attic, PV, and solar water heating.

  12. Energy Efficiency Improvement and Cost Saving Opportunities for Cement Making. An ENERGY STAR Guide for Energy and Plant Managers

    E-Print Network [OSTI]

    Worrell, Ernst

    2008-01-01

    Hydraulic Institute/Europump/ United States Department of Energy.Hydraulic Institute standards and motor performance data from the MotorMaster+ database to calculate potential energy andhydraulic cements, including portland, natural, masonry, and pozzolana cements. The production of cement is an energy-

  13. Interaction between surface structures and tunnelling in sand: centrifuge and computational modelling

    E-Print Network [OSTI]

    Giardina, Giorgia; DeJong, Matthew J.; Mair, Robert J.

    2015-07-30

    historische Geba¨ude am Beispiel einer neuen U-Bahnlinie in Rom, Geomechanics and Tunnelling 5 (3) (2012) 275–299. [36] G. Giardina, M. A. N. Hendriks, J. G. Rots, Sensitivity study on tunnelling induced damage to a masonry fac¸ade, Engineering Structures 89...

  14. Amr Abdelrahman, PhD Professor of Concrete Structures,

    E-Print Network [OSTI]

    Amr Abdelrahman, PhD Professor of Concrete Structures, Structural Engineering Dept., Ain Shams Behavior and Design of Reinforced and Prestressed Concrete Structures and Masonry Wall Design. He conducts and Construction of Concrete Structures, Egyptian Code for Design of Bridges and Egyptian Code for Use

  15. STATE=OF=THE-ART REPORT ON SEISMIC PERFORMANCE OF UNREINFORCED

    E-Print Network [OSTI]

    Bruneau, Michel

    STATE=OF=THE-ART REPORT ON SEISMIC PERFORMANCE OF UNREINFORCED MASONRY BUILDINGS By Michel Bruneau is of unreinforcedmasonry(URM), constructedinthe absenceofmandatoryearthquake design requirements, and unquestionably is relativelynew in eastern North America. In addition, the nature of the seismic risk and other

  16. Research Area Research Instruction

    E-Print Network [OSTI]

    Kaji, Hajime

    mineralogy on nature and artificial inorganic raw materials. Field mineralogy. Synthesis, reaction, physical concerning the development of the processing technology for the valuable materials converted from mineral in the Earth crust. Study on stone materials used for masonry cultural heritages and their deterioration. H11 H

  17. Assessment for the extended uses of historic structures 

    E-Print Network [OSTI]

    Brune, Geoffrey John

    1996-01-01

    of the scope of work is determined by the expertise of the assessing team, including architects, engineers, and contractors. Masonry buildings of a variety of configurations were used as the case studies. It is anticipated that the tool will be equally...

  18. CEE 812 Structural Engineering Seminar Series Resolving Bond Challenges

    E-Print Network [OSTI]

    Kamat, Vineet R.

    and Masonry Construction by Lisa R. Feldman, Ph.D., F.ACI, P.Eng Associate Professor Department of Civil standards. The results of an experimental investigation to evaluate the effects of casting position and bar & Geological Engineering at the University of Saskatchewan. She is a Member of ACI Committee 318-R, Code

  19. Comparison of Construction Labor Productivity between U.S. and China: Using On-Site Productivity Measurement Methods

    E-Print Network [OSTI]

    Chui, Ka Wah

    2010-12-30

    .2.2 Heating, Ventilation, and Air Conditioning System........................................84 4.2.3 Masonry ...........................................................................................................85 4.3 Data Analyses.....................................................................................................................87 5.2 Productivity Data Set in the U.S..................................................................................88 5.3 Productivity Data Set in China ..................................................................................100...

  20. PPage 14 ATDF JOURN AL V olum e 7, Issue 1/2 2010 The Mapungubwe Interpretive Centre in South Africa

    E-Print Network [OSTI]

    Lygeros, John

    in South Africa uses novel design and construction techniques to allow local materials and labour in South Africa. Keywords: form-finding, thrust line, masonry vaulting, local production, earth architecture, development 1. Introduction Mapungubwe National Park, on South Africa's northern border

  1. Quarterly Construction Status Report Period Ending: December 31, 2013

    E-Print Network [OSTI]

    Alpay, S. Pamir

    Greenhouse Upgrade Heating System 901367c Whetten Quad Pedestrian Safety Improvements Phase I 901629 Heating System 901698 Homer Babbidge Library - Replace Floor Coverings 901715 Arjona & Monteith - Renovations foot (gsf) two story steel framed building with exterior masonry walls. The floor surface

  2. Variational fracture mechanics The fracture pattern in stressed bodies is defined through the minimization of a two-field pseudo-spatial-

    E-Print Network [OSTI]

    Segatti, Antonio

    Variational fracture mechanics The fracture pattern in stressed bodies is defined through-deviatoric and masonry-like fractures. Remarkably, this latter formulation rigorously avoid material overlapping., Francfort, G. A. and J. J. Marigo, Numerical experiments in revisited brittle fracture. J. Mech. Phys

  3. County looks at turning waste ash into money Two companies using grant to investigate ways to recycle incinerator byproduct

    E-Print Network [OSTI]

    Columbia University

    County looks at turning waste ash into money Two companies using grant to investigate ways authority, two companies will look at ways to turn waste ash into ceramics or masonry. Trash incineration in York County generates about 160,000 tons of ash per year, and attempts to dispose of it have caused

  4. Nacre: An orthotropic and bimodular elastic material K. Bertoldi a

    E-Print Network [OSTI]

    Bigoni, Davide

    in Table 1), it is dif- ficult to understand how a composite with a highly compli- ant organic matrix may: Mother-of-pearl; Biological composites; Masonry; Homogenization theory; Elasticity 1. Introduction of Currey [7,8]. The fact that these mechanical characteristics remain unchallenged by the cur- rent ceramic

  5. Session T3H San Juan, PR July 23 28, 2006

    E-Print Network [OSTI]

    Simões, Marcelo Godoy

    around the world in need of "smart" technical assistance. As part of the grant, we have added three new, and Timber and Masonry Design with Applications to Unconventional Building Materials. Each class contained of these classes indicate progress in reaching the goals of the humanitarian minor. Index Terms ­ building design

  6. Lessons from a Dam Failure1 JAMI;S E. EVANS, SCUDDKR D. MACKKY, JOHAN F. GOTTC.KNS, AND WILFRID M. GILL, Department of Geology, Bowling Green State

    E-Print Network [OSTI]

    Gottgens, Hans

    Lessons from a Dam Failure1 JAMI;S E. EVANS, SCUDDKR D. MACKKY, JOHAN F. GOTTC.KNS, AND WILFRID M, OH 43606, and Enecotech Southwest, Inc., Phoenix, AZ 85004. ABSTRACT. The IVEX Dam (Chagrin River of the dam. The failure was the result of seepage piping at the toe of the dam, near the masonry spillway

  7. S E R I E S SEISMIC ENGINEERING RESEARCH INFRASTRUCTURES

    E-Print Network [OSTI]

    S E R I E S SEISMIC ENGINEERING RESEARCH INFRASTRUCTURES FOR EUROPEAN SYNERGIES COMMISSION General Committee Final workshop Ispra (IT), May 30 th, 2013 MAID project : Seismic behavior of L- and T-shaped unreinforced Masonry shear walls including Acoustic Isolation Devices #12;SEISMIC ENGINEERING RESEARCH

  8. QUANTIFYING NON-POINT SOURCES OF VOLATILE ORGANIC COMPOUNDS IN STORMWATER FROM A PARKING LOT

    E-Print Network [OSTI]

    1 QUANTIFYING NON-POINT SOURCES OF VOLATILE ORGANIC COMPOUNDS IN STORMWATER FROM A PARKING LOT (VOCs) in stormwater from an asphalt parking lot without obvious point sources (e.g. gasoline stations). The parking lot surface and atmosphere are important non-point sources of VOCs, with each being important

  9. Energy sources for a secure (?) and clean (?) energy future

    E-Print Network [OSTI]

    Hughes, Larry

    -energy: ­ Pesticides ­ Plastics ­ Cosmetics ­ Asphalt Source: IEA, Key World Energy Statistics, 2006 #12;Oil production;Other issues · Changes in the oil market: ­ Heavy-sour crude replacing light-sweet crude ­ Exploration Dalhousie University http://lh.ece.dal.ca/enen #12;Why all the fuss over oil? Oil 34.3% Coal 25.1% Natural

  10. COLLINS, KELLY ALYSSA. A Field Evaluation of Four Types of Permeable Pavement with Respect to Water Quality Improvement and Flood Control. (Under the direction of

    E-Print Network [OSTI]

    Hunt, William F.

    ABSTRACT COLLINS, KELLY ALYSSA. A Field Evaluation of Four Types of Permeable Pavement with Respect of porous concrete (PC), two types of permeable interlocking concrete pavers (PICP) with gravel fill significantly lower outflow volumes than #12;asphalt and the other permeable pavement sections evaluated (p

  11. Characterization of a combined release of LNAPLs and DNAPLs

    SciTech Connect (OSTI)

    Holt, W. )

    1993-10-01

    The subject of this investigation concerns a large quantity, subsurface release of an asphalt paint. The asphalt paint consisted of a mixture of asphalt (cut-back) and a commercial solvent that is 1,1,1-trichloroethane (TCA) based. The TCA appeared in the aquifer as a dense, nonaqueous phase liquid (DNAPL), and the balance of the material in the asphalt paint mixture appeared as light, nonaqueous phase liquids (LNAPLs). The site is located within a manufacturing facility which has been in operation since the late 1900s. There has been extensive development at the site, with attendant renovations and demolition of prior structures and placement of fill material, which has changed the natural surface soil conditions and complicated the local ground-water flow patterns. The complexity of the geology and hydrogeology of the site as well as the extent of the contaminant plume migration further complicated the site investigation. The investigation consisted of several elements: (A) Soil/Gas/Vapor Survey; (B) Surface-Water Sampling; (C) Deep and Shallow Cluster Drilling, Ground-Water Monitoring Well Installation, and Sampling; and (D) Ground-Water Flow and Transport Modeling.

  12. Technical Report Documentation Page 1. Report No. 2. Government Accession No. 3. Recipient's Catalog No.

    E-Print Network [OSTI]

    of Asphalt Pavements through Developing a Predictive Model with Fundamental Material Properties August 2009 6 Drucker-Prager yield surface and plastic potential that is modified to capture the distinction between Model with Fundamental Material Properties by Rashid K. Abu Al-Rub Zachry Department of Civil

  13. ROOFING PROJECT ODORS How Can EHS Help?

    E-Print Network [OSTI]

    Stephens, Graeme L.

    ROOFING PROJECT ODORS How Can EHS Help? We can work with occupants to act as a liaison with Facili- ties Management and the contractor to identify ways to reduce odors. Contact us at 491­ 6745. Roof work is a necessary part of building preservation. Roofing odors are generated during these projects when hot asphalt

  14. Wet-Weather Pollution from Commonly-Used Building Materials

    E-Print Network [OSTI]

    Clark, Shirley E.

    .4) 100 (1.1) 99 (2.6) Freeways (185 events) 1.4 (0.5) 60 (1.2) 78 (1.5) Industrial (518 events) 1.6 (0 · Membrane/rubberized roofing · Cedar shingles · Faux slate shingles (made from recycled materials Distillate PenetrexTM (penetrating oil) · Silver Dollar Fibered Aluminum Roof Coating Aluminum Flakes Asphalt

  15. Long-term Water Balance Monitoring of Engineered Covers for Waste Containment Robert C. Reedy1

    E-Print Network [OSTI]

    Scanlon, Bridget R.

    was excavated to a depth of approximately 3.5 m and sequentially backfilled in nominal 0.15-m lifts with soil. The two designs are separated at the ground surface by a drainage ridgeline and in the subsurface components of the water balance include precipitation, surface runoff, lateral drainage from the asphalt

  16. Society for Range Management and Weed Science Society of America, "Working landscapes providing for the future", February 711 2010, Denver, Colorado. p80.

    E-Print Network [OSTI]

    Maxwell, Bruce D.

    , and Balbach H Dispersal of plant propagules by vehicles. Secondary dispersal of plant propagules by vehicles is generally perceived to be important in the spread of invasive species, though with only to vehicles will depend on a number of factors including type of ground surface (asphalt, gravel, or unpaved

  17. Montana Weed Control Association Annual Meeting. January 11th 2011, Great Falls, MT.

    E-Print Network [OSTI]

    Maxwell, Bruce D.

    Seed movement by vehicles: how many, how far, and under what conditions? Movement of seeds by vehicles is generally thought to increase the spread of invasive plant species, but few studies have vehicles when driven a range of distances on different surfaces (asphalt, unpaved and offroad) under wet

  18. Conservation of Heat Energy at Hot Petroleum Products Terminals 

    E-Print Network [OSTI]

    Powell, J. C.; Graham, R. M.

    1981-01-01

    Exxon operates several terminals which store asphalt and heavy fuel oil. Due to the rising cost of fuels, Exxon initiated a study to identify economic investments which would reduce the fuel needed to heat these products. First, fuel usage at four...

  19. TTCC/NCC Fall Meeting October 6-8, 2009 St. Louis, MO

    E-Print Network [OSTI]

    CO2; cement is #8 of major contributors · Needed infrastructural renewal, cost of asphalt (5b-Poppoff) · Canadian GHG legislation previously mandated a 18% reduction in CO2 emissions final limit requirement...based on a clinker or cement baseline (MT/MT or BTU/MT). · Process CO2

  20. Lake Worth Inlet Palm Beach Harbor

    E-Print Network [OSTI]

    US Army Corps of Engineers

    and Environmental Impact Statement (FR/EIS). The Battelle IEPR panel reviewed the Draft FR/EIS, as well. Clarification of the materials categorized as cement and cement materials was added to Sections 4.2, 4.2.2, 4 and recent rates was added to Section 4.2.3. Clarification on the grouping of asphalt, fuel oil

  1. Worldwide refining

    SciTech Connect (OSTI)

    Williamson, M.

    1994-12-19

    The paper consists of several tables compiling data on refinery capacities by country, by state, and by company. The capacity data are given by process as well as by final product. Processes include vacuum distillation, thermal operations, catalytic cracking, catalytic reforming, catalytic hydrocracking, catalytic hydrorefining, and catalytic hydrotreating. Products include alkylates, polymers, and dimers; aromatics and isomers; oxygenates; hydrogen; asphalts; and coke.

  2. 1996 worldwide refining survey

    SciTech Connect (OSTI)

    NONE

    1996-12-23

    Data are presented on the capacity of refineries for the following processes: vacuum distillation, coking, catalytic cracking, catalytic reforming, catalytic hydrocracking, catalytic hydrorefining, and catalytic hydrotreating. Production capacities are also noted for alkylation, polymerization/dimerization, aromatics, isomerization, lubricants, oxygenates, hydrogen, coke, sulfur, and asphalts. Country totals are given, as well as the data for individual companies within each country, state, or province.

  3. Worldwide refining

    SciTech Connect (OSTI)

    NONE

    1995-12-18

    Data are presented on refining capacity by country and by company within each country. Capacity data are divided into the following processes: vacuum distillation, thermal operations, catalytic cracking, catalytic reforming, catalytic hydrocracking, catalytic hydrorefining, and catalytic hydrotreating. Production capacity is divided into: alkylation/polymerization/dimerization; aromatics/isomerization; lubricants; oxygenates; hydrogen; petroleum coke; and asphalts.

  4. Lignite pellets and methods of agglomerating or pelletizing

    DOE Patents [OSTI]

    Baker, Albert F. (Pittsburgh, PA); Blaustein, Eric W. (Pittsburgh, PA); Deurbrouck, Albert W. (Pittsburgh, PA); Garvin, John P. (Pittsburgh, PA); McKeever, Robert E. (Pittsburgh, PA)

    1981-01-01

    The specification discloses lignite pellets which are relatively hard, dust resistant, of generally uniform size and free from spontaneous ignition and general degradation. Also disclosed are methods for making such pellets which involve crushing as mined lignite, mixing said lignite with a binder such as asphalt, forming the lignite binder mixture into pellets, and drying the pellets.

  5. COARSE AGGREGATE FOR COMPOSITE PORTLAND CEMENT CONCRETE PAVEMENT Effective: January 30, 2012

    E-Print Network [OSTI]

    Specifications: "(g) Recycled Coarse Aggregate (RCA). If recycled coarse aggregate is specified for use in a concrete mix design, the recycled coarse aggregate will be generated from a Tollway approved source of existing concrete or asphalt pavement. The recycled coarse aggregate may be processed from a non

  6. Multiscale Modeling and Simulation of Fluid Flows in Inelastic Media

    E-Print Network [OSTI]

    Popov, Peter

    in porous media (e.g. soil), Elasticity equations in heterogeneous media (concrete, asphalt), etc permeability K = 0.0045 0.0000 0.0000 0.0000 0.0025 0.0000 0.0000 0.0000 0.0043 #12;- p. 8/42 Nonlinear

  7. CX-012380: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Establishment of a MOX Laydown Yard in an Existing Asphalt Parking Lot South of Building 782-3A CX(s) Applied: B1.15 Date: 05/22/2014 Location(s): South Carolina Offices(s): Savannah River Operations Office

  8. 1. Report No. SWUTC/13/600451-00019-1

    E-Print Network [OSTI]

    1. Report No. SWUTC/13/600451-00019-1 2. Government Accession No. 3. Recipient's Catalog No. 4. Title and Subtitle FATIGUE RESISTANCE OF ASPHALT MIXTURES AFFECTED BY WATER VAPOR MOVEMENT 5. Report of predicting and quantifying the amount of water that can enter into a pavement system by vapor transport

  9. Short Elliott Hendrickson Inc., 3535 Vadnais Center Drive, St. Paul, MN 55110-5196 SEH is an equal opportunity employer | www.sehinc.com | 651.490.2000 | 800.325.2055 | 651.490.2150 fax

    E-Print Network [OSTI]

    Netoff, Theoden

    , 2009 UMore Air Quality Impact Study Projected Air Quality Impacts from Concrete and Asphalt Plants an Air Quality Impact Study to assess the air quality impacts associated with the project. The Air for the project and identified issues and alternatives to be examined in depth in the EIS. Air quality impacts

  10. Project Information Form Project Title White Paper on The application of permeable pavement with emphasis

    E-Print Network [OSTI]

    California at Davis, University of

    Project Information Form Project Title White Paper on The application of permeable pavement Project Depending on the type of surface pavement, permeable pavement can be termed as porous asphalt, pervious concrete, or interlocking concrete pavers. Because of their ability to reduce runoff volume

  11. Frequency dependent elastic properties and attenuation in heavy-oil sands: comparison between mea-sured and modeled data

    E-Print Network [OSTI]

    Frequency dependent elastic properties and attenuation in heavy-oil sands: comparison between mea) properties of heavy-oil sands over a range of frequencies (2 - 2000Hz) covering the seismic bandwidth and at ultrasonic frequencies (0.8MHz). The measurements were carried on heavy-oil sand sample from Asphalt Ridge

  12. Evaluation of infiltration in layered pavements using surface GPR reflection techniques

    E-Print Network [OSTI]

    Hubbard, Susan

    Evaluation of infiltration in layered pavements using surface GPR reflection techniques K. Grotea and guiding pavement maintenance, is greatly influenced by soil water content. In this study, ground content in sub-asphalt aggregate layers during an extended infiltration experiment. Water was injected

  13. Supplementary material: The role of vegetation in the CO2 flux from a tropical urban neighbourhood

    E-Print Network [OSTI]

    Meskhidze, Nicholas

    Norford1 1 Singapore-MIT Alliance for Research and Technology (SMART), Center for Environmental Sensing or asphalt. Figure S2. Cumulative probability density distribution of height of trees and buildings within height of trees and buildings. 80% of the trees and buildings have heights below 9.8 and 12.8 m

  14. Eshan V. Dave,1 Andrew F. Braham,2

    E-Print Network [OSTI]

    Paulino, Glaucio H.

    . KEYWORDS: indirect tensile test, creep test, tensile strength test, viscoelasticity, finite element creep and strength properties of asphalt con- crete mixtures [2,3] in indirect tension. The test in AASHTO T322. Both properties are measured on the same sample, with the non-destructive creep test run

  15. 1 INTRODUCTION AND MOTIVATION The Indirect Tension Test is frequently used in the

    E-Print Network [OSTI]

    Paulino, Glaucio H.

    Highway Research Program (SHRP), in the mid-1990's, a test protocol was developed for evaluating creep on the same sample, with the non-destructive creep test run before the destructive strength test Tension Test (IDT) is frequently used for evaluation of asphalt material viscoelas- tic creep properties

  16. Automated speed enforcement study finds public support in Minnesota

    E-Print Network [OSTI]

    Minnesota, University of

    -temperature cracking than current methods that examine creep and strength properties. After using the DCT test professor Mihai Marasteanu has been working to develop new testing methods and specification criteria, the research team developed a new test for asphalt mixtures based on fracture mechanics principles. The test

  17. Short-Term Energy Outlook Model Documentation: Other Petroleum Products Consumption Model

    Reports and Publications (EIA)

    2011-01-01

    The other petroleum product consumption module of the Short-Term Energy Outlook (STEO) model is designed to provide U.S. consumption forecasts for 6 petroleum product categories: asphalt and road oil, petrochemical feedstocks, petroleum coke, refinery still gas, unfinished oils, and other miscvellaneous products

  18. DOE ZERH Case Study: Habitat for Humanity South Sarasota, Laurel Gardens #794, Nakomis, FL

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning affordable home in the hot-humid climate that got a HERS 51 without PV, with foam-filled masonry block walls with .75” rigid foam, furring strips, and foil-faced paper on interior walls; R-20 ocsf in roof of sealed attic, uninsulated slab, 15 SEER 8.0 HSPF heat pump walls for heating and cooling, heat pump water heater.

  19. Best Practices Case Study: John Wesley Miller Companies - Armory Park Del Sol, Tucson, AZ

    SciTech Connect (OSTI)

    2009-10-01

    Case study of John Wesley Miller Companies, who built two net zero energy homes plus 97 other solar homes in Tucson, AZ. Masonry block walls with rigid foam exterior sheathing, rigid foam over the roof deck plus R-38 in the attic, ducts in conditioned space, 4.2 kW and 5.7 kW photovoltaics and solar water heating yielded HERS scores of 0 on the two homes.

  20. Existing Whole-House Solutions Case Study: Multifamily Individual Heating and Ventilation Systems, Lawrence, Massachusetts

    SciTech Connect (OSTI)

    2013-11-01

    The conversion of an older Massachusetts building into condominiums illustrates a safe, durable, and cost-effective solution for heating and ventilation systems that can potentially benefit millions of multifamily buildings. In this project, Merrimack Valley Habitat for Humanity (MVHfH) partnered with U.S. Department of Energy Building America team Building Science Corporation (BSC) to provide high performance affordable housing for 10 families in the retrofit of an existing mass masonry building (a former convent).

  1. Samuel Sandoval Solis, PhD Assistant Professor

    E-Print Network [OSTI]

    Pasternack, Gregory B.

    Samuel Sandoval Solis, PhD Assistant Professor University of California, Davis Department of Land of 10 #12;Hoover Dam 158 m 35.2 Km3 4.2 bill. KWh $49M - 1936 Oroville Dam 230 m 4.4 Km3 2.2 bill. KWh Shasta Dam 159 m 5.6 Km3 1.8 bill. KWh $36M - 1945 #12;· Masonry - Arch Dams · Gravity Dams · Embankment

  2. Experimental study of a fiber absorber-suppressor modified Trombe wall

    SciTech Connect (OSTI)

    Choudhury, D; Birkebak, R C

    1982-12-01

    An experimental study has been conducted to ascertain the effects of introducing fiber bed absorbers on Trombe wall passive solar collectors. Two identical, Trombe wall passive solar units were constructed that incorporate the basic components of masonry collector-storage walls: glazings, masonry and thermal insulation. Both units were extensively instrumented with thermocouples and heat flux transducers. Ambient temperature, relative humidity, wind speed and insolation are also measured. In the first part of the study the two Trombe wall units were tested with a single glass cover. The thermal performance of both units was found to be virtually identical. In the second part of the study a single cover Trombe wall unit was compared with a double cover unit and the latter was found to have higher air gap and masonry wall temperatures and heat fluxes. In the final phase of the experiment, an absorbing, scattering and emitting fiberglass-like material was placed in the air gap of the single gazed wall. Tests were conducted to compare the solar-thermal performance, heat loss and gain characteristics between the units with and without the fiber absorber-suppressor. This experiment showed that the fiber bed served to decouple the wall at night from its exterior environment and to reduce the heat losses. The modified Trombe wall with the fiber absorber-suppressor out-performed the double glazed Trombe wall system by approximately ten percent gain in useable thermal energy. Also, the fiber bed eliminates one glazing thereby reducing system cost as well.

  3. Constructing earth sheltered housing with concrete

    SciTech Connect (OSTI)

    Spears, R.E.

    1981-01-01

    This manual provides a state - of - the - art review of the design and construction of an earth - sheltered house using cast - in - place concrete, precast concrete, and concrete masonry. Based on a literature survey, theoretical work, and discussions with researchers and engineers in the concrete industry, the text is designed for use by architects, engineers, and homebuilders. The features of concrete construction that are current accepted practice for the concrete products discussed are shown to be applicable with reasonable care to building a safe, dry, and comfortable earth - sheltered house. The main considerations underlying the recommendations were the use of the earth's mass and passive solar effects to minimize energy needs, the structural capacity of the separate concrete products and their construction methods, and drainage principles and waterproofing details. Shelter ranging from those with at least 2 feet of earth cover to those with an uncovered roof of usual construction are included. To be considered an earth - sheltered residential building, at least half of the exterior wall and roof area that is in direct contact with the conditioned living space must be sheltered from the environment by earth berm or earthfill. Siting considerations, the fundamentals of passive solar heating, planning considerations, and structural considerations are discussed. Detailed guidelines are provided on concrete masonry construction, joint details in walls and floors, waterproofing, formwork and form removal, concrete construction practices, concrete masonry, and surface finishes. Numerous illustrations, tables, and a list of 32 references are provided. (Author abstract modified).

  4. Improvement of tap holes at Wakayama No. 5 blast furnace

    SciTech Connect (OSTI)

    Yamashita, M.; Kashiwada, M.; Shibuta, H. [Sumitomo Metal Industries, Ltd., Wakayama (Japan). Wakayama Steel Works

    1995-12-01

    The service life of blast furnaces, as the result of various improvement measures, has been extended from the conventional 5 to 7 years to 15 to 20 years. Wakayama No. 5 blast furnace adopted SiC bricks. Though SiC brick excelled in strength and durability, it has raised problems such as tap hole inside temperature lowering attributable to its high thermal conductivity, insufficient mud burning and gas blow-out. Nevertheless, various countermeasures described within have been taken against such problems, and as the result it has now become possible to maintain tap holes in stable conditions.

  5. Bosh repairs No. 3 blast furnace, Edgar Thomson Plant Mon Valley Works

    SciTech Connect (OSTI)

    Stoupis, M.G.

    1993-01-01

    The paper describes in detail the steps taken from quenching to dry out of the furnace to repair the bosh area of the No.3 blast furnace. Inspection of the area revealed that there was no brick anywhere in the bosh. Brick in the tuyere breast area had been peeled back to reveal the steel plate, and descaling revealed 14 pipes fully exposed. None were leaking, but one seemed badly deteriorated. Conventional repairs could not take place before the scheduled blow-in. Installation of coolers were instead tried.

  6. Design of Refractory Linings for Balanced Energy Efficiency, Uptime, and Capacity in Lime Kilns

    SciTech Connect (OSTI)

    Gorog, John Peter; Hemrick, James Gordon; Walker, Harold; Leary, William R; Ellis, Murray

    2014-01-01

    The rotary kilns used by the pulp and paper industry to regenerate lime in the Kraft process are very energy intensive. Throughout the 90 s, in response to increasing fuel prices, the industry used back up insulation in conjunction with the high alumina brick used to line the burning zones of their kilns. While this improved energy efficiency, the practice of installing insulating brick behind the working lining increased the inner wall temperatures. In the worst case, due to the increased temperatures, rapid brick failures occurred causing unscheduled outages and expensive repairs. Despite these issues, for the most part, the industry continued to use insulating refractory linings in that the energy savings were large enough to offset any increase in the cost of maintaining the refractory lining. Due to the dramatic decline in the price of natural gas in some areas combined with mounting pressures to increasing production of existing assets, over the last decade, many mills are focusing more on increasing the uptime of their kilns as opposed to energy savings. To this end, a growing number of mills are using basic (magnesia based) brick instead of high alumina brick to line the burning zone of the kiln since the lime mud does not react with these bricks at the operating temperatures of the burning zone of the kiln. In the extreme case, a few mills have chosen to install basic brick in the front end of the kiln running a length equivalent to 10 diameters. While the use of basic brick can increase the uptime of the kiln and reduce the cost to maintain the refractory lining, it does dramatically increase the heat losses resulting from the increased operating temperatures of the shell. Also, over long periods of time operating at these high temperatures, damage can occur in the shell. There are tradeoffs between energy efficiency, capacity and uptime. When fuel prices are very high, it makes sense to insulate the lining. When fuel prices are lower, trading some thermal efficiency for increased uptime and capacity seems reasonable. This paper considers a number of refractory linings in an effort to develop optimized operating strategies that balance these factors. In addition to considering a range of refractory materials, the paper examines other factors such as the chain area, discharge dams and other operating variables that impact the service life of the refractory lining. The paper provides recommendations that will help mill personnel develop a strategy to select a refractory lining that is optimized for their specific situation.

  7. Regenerative air heater

    DOE Patents [OSTI]

    Hasselquist, P.B.; Baldner, R.

    1980-11-26

    A gas-cooled steel skirt is used to support a refractory cored brick matrix and dome structure in a high temperature regenerative air heater useful in magnetohydrodynamic power generation. The steel skirt thermally expands to accommodate the thermal expansion of the dome structure despite substantial temperature differential thereby reducing relative movement between the dome bricks. Gas cooling of the steel skirt allows the structure to operate above its normal temperature during clean-out cycles and also allows for the control of the thermal expansion of the steel skirt.

  8. The Role of Fucose in Early Cancer Detection

    E-Print Network [OSTI]

    Heinzman, Jeff; McKenzie, David; Melrose, Scott; Selley, Patrick; Wenke, Jamie

    2009-10-01

    . The colors included in the tricolored care are, from left to right, Honey Pot (ACE), Yellow Brick Road (ACE), and Citrus (Behr). Figure 2. (above) Fucose, 15µL Indicator, 800?M, 1200?M,1600?M left to right, 30 min. 66 volume affected the color change.... The colors included in the tricolored care are, from left to right, Honey Pot (ACE), Yellow Brick Road (ACE), and Citrus (Behr). Figure 2. (above) Fucose, 15µL Indicator, 800?M, 1200?M,1600?M left to right, 30 min. 66 volume affected the color change...

  9. Regenerative air heater

    DOE Patents [OSTI]

    Hasselquist, Paul B. (Maple Grove, MN); Baldner, Richard (Minnetonka, MN)

    1982-01-01

    A gas-cooled steel skirt is used to support a refractory cored brick matrix and dome structure in a high temperature regenerative air heater useful in magnetohydrodynamic power generation. The steel skirt thermally expands to accommodate the thermal expansion of the dome structure despite substantial temperature differential thereby reducing relative movement between the dome bricks. Gas cooling of the steel skirt allows the structure to operate above its normal temperature during clean-out cycles and also allows for the control of the thermal expansion of the steel skirt.

  10. An Upgraded Front-End Switching Power Supply Design for the ATLAS TileCAL Detector of the LHC

    E-Print Network [OSTI]

    Drake, G; The ATLAS collaboration; De Lurgio, P; Henriques, A; Minashvili, I; Nemecek, S; Price, L; Proudfoot, J; Stanek, R

    2011-01-01

    We present the design of an upgraded switching power supply brick for the front-end electronics of the ATLAS hadron tile calorimeter (TileCAL) at the LHC. The new design features significant improvement in noise, improved fault detection, and generally a more robust design, while retaining the compact size, water-cooling, output control, and monitoring features in this 300 KHz design. We discuss the improvements to the design, and the radiation testing that we have done to qualify the design. We also present our plans for the production of 2400 new bricks for installation on the detector in 2013.

  11. Design of a Natural Ventilation System in the Dunhuang Museum 

    E-Print Network [OSTI]

    Zhang, Y.; Guan, W.

    2006-01-01

    preservation layer, interior side is clay air brick, heat transfer coefficient is 0.43W/m2. ?. Window: alloy aluminium window interior shading device with low-e properties, heat transfer coefficient is 2.0 W/m2. ?. Roof: 120mm concrete slab, outside...

  12. Demonstration: The Key to Technology Transfer in the Field of Energy Conservation in the UK 

    E-Print Network [OSTI]

    Carter, D. E. F.; Lawrence, J. E.

    1983-01-01

    TABLE 1 ENERGY AUDIT SCHEME SECTOR REPORTS AND CONSERVATION POTENTIAL SECTOR POTENTIAL Mtcehr (%) 1. IRON CASTINGS 0.6 (12%) 2. BRICKS 0.45 (45%) 3. DAIRY INDUSTRY 0.25 (25%) 4. REFRACTORIES 0.15 (15%) 5. GLASS 0.5 (30%) 6. ALUMINIUM 0.2 7...

  13. 1. Noah's Bagels 2. Pete's Coffee & Tea

    E-Print Network [OSTI]

    Weinreb, Sander

    1. Noah's Bagels 2. Pete's Coffee & Tea 3. Pie 'N Burger 4. Noda Sushi 5. Subway 6. Madres 7. Coffee Bean & Tea Leaf 14. Cold Stone Creamery 15. Macy's 16. Red Brick Pizza 17. Trader Joe's 18. Green Street Restaurant 42. Radhika's Cuisine of India 43. Crocodile Cafe 44. California Skewers 45

  14. Word Spotting for Handwritten Documents using Chamfer Distance and Dynamic Time Warping

    E-Print Network [OSTI]

    El-Sana, Jihad

    in libraries around the world. The desire to ac- cess, search, and explore these documents paves the way, taken from Juma'a Al Majid Center - Dubai, and obtained encouraging results. Keywords: Word Spotting to rare documents and old manuscripts, which are kept in brick-and-mortar libraries around the world

  15. PHYSICS DIVISION ESH BULLETIN 2004-02 1/15/04 LEAD SHIELDING

    E-Print Network [OSTI]

    PHYSICS DIVISION ESH BULLETIN 2004-02 1/15/04 LEAD SHIELDING Lead bricks (also sheet, tape, shot) are commonly used in the Physics Division for radiation shielding. Lead is toxic by inhalation and ingestion. Lead is a carcinogen and a reproductive hazard for both males and females. In addition to being

  16. The 1994 intermediate reline of H-3 furnace

    SciTech Connect (OSTI)

    James, J.D.; Nanavati, K.S.; Spirko, E.J.; Wakelin, D.H.

    1995-12-01

    LTV Steel`s Indiana Harbor Works H-3 Blast Furnace was rebuilt in 1988 to provide reliable operations at high production rates without damage to the shell for an overall campaign. This Rebuild included: (1) complete bosh and partial stack shell replacement; (2) a spray cooled carbon bosh; (3) a row of staves at the mantle and six rows of stack staves, all stack staves had noses (ledges at the top of the stave) with the exception of row 5; (4) silicon carbide filled semi graphite brick for the bosh, silicon carbide brick from the mantle area and to the top of stave row No. 1, super duty brick in front of the remaining staves and phosphate bonded high alumina brick in the upper stack; (5) movable throat armor; (6) upgraded instrumentation to follow furnace operation and lining wear occurring in the furnace. No work was done to the hearth walls and bottom, since these had been replaced in 1982 with a first generation graphite cooled design and has experienced 7.7 million NTHM. The furnace was blown in November 18, 1988 and operated through September 3, 1994, at which time it was blown down for its first intermediate repair after 7.85 million NTHM. This paper summarizes the operation of the furnace and then discusses the major aspects of the 1994 intermediate repair.

  17. Atmos. Chem. Phys., 11, 931954, 2011 www.atmos-chem-phys.net/11/931/2011/

    E-Print Network [OSTI]

    Meskhidze, Nicholas

    for the brick and coke industries, as well as for coal- burning stoves and biofuel usage in the residential impact the climate system directly by enhancing the scattering and absorption of solar radiation and indi et al., 2003; Huang et al., 2006), changes in surface solar radiation trends (Kaiser and Qian, 2002

  18. Community Geothermal Technology Program: Silica bronze project. Final report

    SciTech Connect (OSTI)

    Bianchini, H.

    1989-10-01

    Objective was to incorporate waste silica from the HGP-A geothermal well in Pohoiki with other refractory materials for investment casting of bronze sculpture. The best composition for casting is about 50% silica, 25% red cinders, and 25% brick dust; remaining ingredient is a binder, such as plaster and water.

  19. Rationale, Concept & Architecture of a Distributed MCDA application Designer

    E-Print Network [OSTI]

    Bisdorff, Raymond

    => stabilization & evolution issues · Data and process traceability => Missing link (feedback, trust) · But it - remastered 11 Data Brick ! Persistency ! Standard architecture JEE/JPA/DBMS ! Fine coarse (atomic) granularity & traceability ! Generic storage schema ! Concurrent data and schema evolution ! XSD/XML I

  20. begell house, inc. Journal Production

    E-Print Network [OSTI]

    Hu, Qinhong "Max"

    . For example, critical voltage of concrete at limited cur- rents is used to evaluate the concrete permeability. The calculated effective permeabilities of three building materials, including limestone, concrete, and brick (Lu et al., 2000). Also, the permeability of concrete can be obtained by the conductivity of concrete

  1. WASTE DESCRIPTION CONTACT PHONE RECYCLED OR

    E-Print Network [OSTI]

    eliminates potential environmental impact of storing waste bricks. Waste Oil Roland Baillargeon, ext.3261 Source Reduction 3,500 Hazardous Waste $6,000 $0 $20,000 350 gallons of waste oil contaminated contamination was identified and replaced with non-chlorinated substitute. Waste oil is now removed free

  2. A New Quad at Walton Street Ground Investigation Report

    E-Print Network [OSTI]

    Flynn, E. Victor

    out by Geotechnical and Environmental Associates Limited (GEA) on the instructions of Stockley-brown and greyish brown sandy gravelly clay or a clayey gravelly sand with fragments of brick, concrete, ash and coal. The underlying Northmoor Sand and Gravel Formation initially comprised soft orange light brown

  3. M. KOVA^I^ et al.: LADLE-NOZZLE OPENING AND GENETIC PROGRAMMING LADLE-NOZZLE OPENING AND GENETIC

    E-Print Network [OSTI]

    Fernandez, Thomas

    number, the time spend for secondary metallurgy, the sustainability of the upper-nozzle brick, the sustainability of the ladle and of the foreman of secondary metallurgy and the melt chemical composition (Al, C in practice to change several steelmaking technologies. Keywords: secondary metallurgy, ladle-nozzle opening

  4. scientific data. They improved its scala-bility through partitioning and distribu-

    E-Print Network [OSTI]

    Chetverikov, Dmitry

    information be extracted from this flood of data? There is great need for models, methods and techniques to control it. The MonetDB/SkyServer project con- tributes to this objective. The MonetDB SkyServer project was funded by the Dutch Bsik BRICKS pro- gramme, NWO Focus and MultimediaN. The MonetDB platform

  5. 2 3 4 5 6 7 8 FFL = -1 400

    E-Print Network [OSTI]

    Wagner, Stephan

    lineofnewroof overhangabove blank off exist waste pipe retain exist white porcelain tiles new ledge & steps- roundings to be made good remove exist built in seat new aluminium sliding / stacking doors to schedule screed tile to spec remove exist tiles new tiles to spec remove exist door and brick up and make good

  6. 368 IEEE JOURNAL OF PHOTOVOLTAICS, VOL. 4, NO. 1, JANUARY 2014 The Impact of Silicon CCD Photon Spread on

    E-Print Network [OSTI]

    be achieved. Short-pass filtering provides partial correction of the photon spread with the advantage material at all stages of fabrication, from bricks and as-cut wafers to complete solar cells for Sustainable Energy Systems, Australian National University, Canberra, A.C.T. 2602, Australia (e-mail: daniel

  7. for Better Homes The effects of loads from wind, snow and rain on houses and other

    E-Print Network [OSTI]

    Lennard, William N.

    realistic circumstances; as a result, the ways buildings respond to these stresses to the point of failure a controlled environment · Contains a typical two-storey brick house that comes complete with plumbing moulds grow · How loads move through structures to the ground · How well individual and overall parts

  8. "Pushing the frontiers in spintronics and quantum information."

    E-Print Network [OSTI]

    Zhigilei, Leonid V.

    "Pushing the frontiers in spintronics and quantum information." Stuart Wolf Professor Director, and as reconfigurable logic, a potential replacement for conventional CMOS. The ultimate spintronic structure contains Spintronics and Nanomagnetics As conventional CMOS technologies are running into multiple "red brick walls

  9. X29A SAFETY CHECKLIST BROOKHAVEN NATIONAL LABORATORY NATIONAL SYNCHROTRON LIGHT SOURCE

    E-Print Network [OSTI]

    Johnson, Peter D.

    around bellows downstream of mirror tank. 7. Bremsstrahlung shields (BS #1) and lead bricks around white. 2. Exclusion Zone (EZ #1) metal encasement in place and locked. See photo 1 3. Scatter Shield covering Exclusion Zone (EZ #2) lead shield in place and banded around bellows upstream of monochromator

  10. Working With Radiation For Research

    E-Print Network [OSTI]

    Jia, Songtao

    flight New York to LA 5 Moving from east coast to Denver for one year 50 Moving from frame house to brick with an ever-present background of radiation. Radiation & Life 1* *2 #12;3 · Radiation is energy traveling with sufficiently energy to remove electrons from the atoms or molecules of the substances it passes through. Can

  11. Gille-ESYS 10, Winter 2003 1 Syllabus: ESYS 10 Introduction to Environmental Systems

    E-Print Network [OSTI]

    Griesel, Alexa

    on Case study 1. · January 21: Global energy balance: The greenhouse effect. Case study 1, part 2. Reading: Ch. 3 · January 23: Global energy balance (cont.). Case study 2, part 1 · January 28: Paul Dayton study warm up. · January 14: Daisy World, Case study 1, part 1. Reading: Ch. 2 · January 16: Bill Brick

  12. Mechatronics 2: Part 3 Capture Motor Characteristics Copyright 2011 by Paul Oh

    E-Print Network [OSTI]

    Oh, Paul

    Mechatronics 2: Part 3 ­ Capture Motor Characteristics Copyright 2011 by Paul Oh Hands-on Lab NXT mass cartm [Kg] NXT Brick Voltage [V] Table 1: Preliminary values #12;Mechatronics 2: Part 3 ­ Capture clamping surfaceTie other end of fishing line to cart's crossbars #12;Mechatronics 2: Part 3 ­ Capture

  13. Acta Materialia 51 (2003) 24572475 www.actamat-journals.com

    E-Print Network [OSTI]

    Nakamura, Toshio

    2003-01-01

    for an effective ceramic thermal barrier coating (TBC) are recog- nized to be: (i) low thermal conductivity; (ii-up of these "splats" results in a lay- ered arrangement in the coating, analogous to a brick-wall-like structure where the splats are entwined in complex arrays [8,9]. This splat-based layered microstructure leads

  14. Laser fusion and glass forming of high iron bearing SiO2-CaO-Fe2O3 batches (Fusin y vitrificacin por lser de vidrios SiO2-CaO-Fe2O3 con altas cantidades de hierro)

    E-Print Network [OSTI]

    Vásquez, Carlos

    , 90 sec. Apparent density of samples: 1,93 & 2,11 gr. /cm3 Laser CO2 RefractoryBrick Mirror Laser CO2, showing a rippling phenomenon. It was possible to take advantage of this foaming effect for separating pressing of 5 gr samples Precharge: 5 ton, 1 min. Charge: 15, 20, 25 and 30 ton, 3 min Exposure to Laser CO

  15. Green Building Features Northwest Center for Engineering, Science and Technology

    E-Print Network [OSTI]

    Bertini, Robert L.

    , including concrete, brick, structural steel and doors Preference given to local and regionally extracted car-sharing vehicle located across street from main entrance Rainwater harvesting reduces the burden on the city drinking water & stormwater systems Additional catch-basin design and stormwater recovery

  16. 2012 State Fair 4-H Energy Robotics Challenge Level A Groups attempt tasks 1-4

    E-Print Network [OSTI]

    Keinan, Alon

    . When placed on the roof of the 4-H Facility, the solar panel with be tilted for efficiency. 3. WIND is completely "off-the-grid" with its solar installation. CHALLENGE: Your robot will place a solar panel on a local 4-H facility. a. Solar panel (Lego brick solar panel) must be placed on top of house for total

  17. C.C. Berndt: Professional 1 Following your Passion while

    E-Print Network [OSTI]

    Alpay, S. Pamir

    · Pump Impellers · Coal Chutes · Valve Flanges · Centrifuge Scrolls · Boiler Tubes · Extrusion Screws and Compressor Rods ·Plungers ·Valves, Thermowells ·Pump Impellors · Brick and Tile · Cement Mixers · Conveyers of jobs? · How do they get there? #5 #12;C.C. Berndt: Professional 1. Industry 2. Academia 3. Government

  18. Project Plan This project will identify key silicon material and device defects, and develop new methods for their

    E-Print Network [OSTI]

    for solar cell efficiency. This parameter is in principle directly measurable on ingots and bricks, whereas to the Work- Packages and Tasks. 4. Commercial Outcomes and Cost Savings ­ a summary of the anticipated, Sinton Instruments Background, Motivation and Summary Detection of efficiency limiting defects

  19. Compact, Low-Profile Power Converters: Highly-Laminated, High-Saturation-Flux-Density, Magnetic Cores for On-Chip Inductors in Power Converter Applications

    SciTech Connect (OSTI)

    None

    2010-09-01

    ADEPT Project: Georgia Tech is creating compact, low-profile power adapters and power bricks using materials and tools adapted from other industries and from grid-scale power applications. Adapters and bricks convert electrical energy into useable power for many types of electronic devices, including laptop computers and mobile phones. These converters are often called wall warts because they are big, bulky, and sometimes cover up an adjacent wall socket that could be used to power another electronic device. The magnetic components traditionally used to make adapters and bricks have reached their limits; they can't be made any smaller without sacrificing performance. Georgia Tech is taking a cue from grid-scale power converters that use iron alloys as magnetic cores. These low-cost alloys can handle more power than other materials, but the iron must be stacked in insulated plates to maximize energy efficiency. In order to create compact, low-profile power adapters and bricks, these stacked iron plates must be extremely thin-only hundreds of nanometers in thickness, in fact. To make plates this thin, Georgia Tech is using manufacturing tools used in microelectromechanics and other small-scale industries.

  20. Acknowledgments: UNEP/WMO, IIASA, JRC, US EPA, SEI, Scripps, Middlebury, U York,

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