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Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

A PERMEABLE ACTIVE AMENDMENT CONCRETE (PAAC) FOR CONTAMINANT REMEDIATION AND EROSION CONTROL  

SciTech Connect (OSTI)

The final project report for SEED SERDP ER - 2134 describes the development of permeable active amendment concrete (PAAC), which was evaluated through four tasks: 1) development of PAAC; 2) assessment of PAAC for contaminant removal; 3) evaluation of promising PAAC formulations for potential environmental impacts; and 4) assessment of the hydraulic, physical, and structural properties of PAAC. Conventional permeable concrete (often referred to as pervious concrete) is concrete with high porosity as a result of an extensive and interconnected void content. It is made from carefully controlled amounts of water and cementitious materials used to create a paste that forms a coating around aggregate particles. The mixture has a substantial void content (e.g., 15% - 25%) that results in a highly permeable structure that drains quickly. In PAAC, the aggregate material is partly replaced by chemically-active amendments that precipitate or adsorb contaminants in water that flows through the concrete interstices. PAAC combines the relatively high structural strength, ample void space, and water permeability of pervious concrete with the contaminant sequestration ability of chemically-active amendments to produce a new material with superior durability and ability to control contaminant mobility. The high surface area provided by the concrete interstices in PAAC provides significant opportunity for contaminants to react with the amendments incorporated into the concrete matrix. PAAC has the potential to immobilize a large variety of organic and inorganic contaminants by incorporating different active sequestering agents including phosphate materials (rock phosphate), organoclays, zeolite, and lime individually or in combinations.

Knox, A.; Paller, M.; Dixon, K.

2012-06-29T23:59:59.000Z

2

AMENDED  

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

x 1 AMENDED CLASS 1 ENVIRONMENTAL ASSESSMENT ATTACHMENT SEPTEMBER 1, 2010 RAINIER BIOGAS LLC COMMUNITY ANAEROBIC MANURE DIGESTER 2 PROJECT DESCRIPTION Applicant's Name: Rainier...

3

Concrete Domains  

E-Print Network [OSTI]

This paper introduces the theory of a particular kind of computation domains called concrete domains. The purpose of this theory is to find a satisfactory framework for the notions of coroutine computation and sequentiality ...

Kahn, Gilles; Plotkin, Gordon

1993-01-01T23:59:59.000Z

4

Concrete Pavement Surface Characteristics  

E-Print Network [OSTI]

, Broom, Belt, Carpet) Shot Peened Exposed Aggregate Porous (Pervious) Concrete Milled HMA and SurfaceImproving Concrete Pavement Surface Characteristics Pooled Fund TPF-5(139) National Concrete do with this knowledge? #12;Better Design and Construction Practices for Texturing Concrete Pavement

5

Concrete Material Models Concrete_1: Concrete Model with No Tensile Strength  

E-Print Network [OSTI]

Concrete Material Models Concrete_1: Concrete Model with No Tensile Strength INPUT Concrete_1, matID ¢f fc cu u, , ,e e0 Definitions (Fig. 1): fc : concrete compressive strength at 28 days (compression is negative) A0 : concrete strain at maximum strength (compression is negative) fcu : concrete crushing

Filippou, Filip C.

6

Insulating polymer concrete  

DOE Patents [OSTI]

A lightweight insulating polymer concrete formed from a lightweight closed cell aggregate and a water resistance polymeric binder.

Schorr, H. Peter (Douglaston, NY); Fontana, Jack J. (Shirley, NY); Steinberg, Meyer (Melville, NY)

1987-01-01T23:59:59.000Z

7

National Concrete Pavement Technology Center  

E-Print Network [OSTI]

.5 " concrete overlay with 1" asphalt interlayer (non porous surface mix) ·Pours- one 22' pass and one 16' ftNational Concrete Pavement Technology Center Concrete Overlay Technology TTCC/NC2 Meeting Savannah patches in 2008 Shortcut (2) to CD Drive.lnk #12;Need to Move Concrete Overlays Forward Concrete Overlay

8

Sonar probing of concrete  

E-Print Network [OSTI]

ABSTRACT Sonar Probing of Concrete (May 1988) John H. Mims, B. A. , Carleton College Chairman of Advisory Committee: Dr. Robert R, Unterberger Two systems were used for acoustical tests at concrete dams. The first system used a pair of donated... reflections from several concrete-air interfaces at the Norfork Dam, Arkansas. A reflection between two walls in the dam's operating gallery which were 6. 73 m apart was recorded at 3. 4 ms (peak value). After subtracting the appropriate delays, this value...

Mims, John Hornsby

1988-01-01T23:59:59.000Z

9

Concrete chemistry: Chemical admixtures, sprayed concrete, concrete binders and current R&D  

E-Print Network [OSTI]

Concrete chemistry: Chemical admixtures, sprayed concrete, concrete binders and current R&D Dr Roar Myrdal, R&D Director Construction Chemicals, Normet International Ltd. Adjunct Prof. Concrete Technology ­ School of Engineering ABSTRACT A short overview of chemical admixtures for concrete ­ types and how

Davies, Christopher

10

Strict $\\infty $-categories. Concrete Duality  

E-Print Network [OSTI]

An elementary theory of strict $\\infty $-categories with application to concrete duality is given. New examples of first and second order concrete duality are presented.

G. V. Kondratiev

2006-08-17T23:59:59.000Z

11

ParadigmParadigm Concrete RecyclingConcrete Recycling  

E-Print Network [OSTI]

ParadigmParadigm Concrete RecyclingConcrete Recycling #12;Recycled ConcreteRecycled Concrete ·· Whatever steel goes into PCC must comeWhatever steel goes into PCC must come out for recycleout for recycle ·· Aggregates have a big impact on the costAggregates have a big impact on the cost of recyclingof recycling

12

DIVISON 03 CONCRETE 03300 CAST-IN-PLACE CONCRETE  

E-Print Network [OSTI]

-IN-PLACE CONCRETE A. Design Considerations 1. Testing and inspection will be required for cast-in-place concrete of the Building Code. All testing and inspection of concrete work will be contracted for and paid for directly by the University, regardless of building class. The A/E must specify all testing and inspection of concrete work

13

Electrokinetic decontamination of concrete  

SciTech Connect (OSTI)

ELECTROSORB Electrokinetic Extraction Technology, developed by ISOTRON Corp., offers a cost-effective approach to treating contaminated concrete. Heavy metals/radionuclides trapped in concrete can be extracted using this process if they are chemically solubilized; solubilizers used are citric acid alone and a mixture of citric and nitric acids. A DC electric field is applied across the contaminated concrete to electrokinetically transport the solubilized contaminants from the concrete pores to a collector on the concrete surface. The collector is an extraction pad laid on the surface. The pad provides confinement for a planar electrode and solubilizer solution; it is operated under a vacuum to hold the pad against the concrete surface. Operation requires little attendance, reducing the workers` health hazards. The process incorporates a mechanism for recycling the solubilizer solution. A field demonstration of the process took place in Building 21 of DOE`s Mound facility in Miamisburg, OH, over 12 days in June 1996. The thorium species present in this building`s concrete floors included ThO{sub 2} and thorium oxalate. The nitric acid was found to facilitate Th extraction.

Lomasney, H.L.; SenGupta, A.K.; Yachmenev, V.

1996-12-31T23:59:59.000Z

14

Lightweight polymer concrete composites  

SciTech Connect (OSTI)

Lightweight polymer concrete composites have been developed with excellent insulating properties. The composites consist of lightweight aggregates such as expanded perlites, multicellular glass nodules, or hollow alumina silicate microspheres bound together with unsaturated polyester or epoxy resins. These composites, known as Insulating Polymer Concrete (IPC), have thermal conductivites from 0.09 to 0.19 Btu/h-ft-/sup 0/F. Compressive strengths, dependent upon the aggregates used, range from 1000 to 6000 psi. These materials can be precast or cast-in-place on concrete substrates. Recently, it has been demonstrated that these materials can also be sprayed onto concrete and other substrates. An overlay application of IPC is currently under way as dike insulation at an LNG storage tank facility. The composites have numerous potentials in the construction industry such as insulating building blocks or prefabricated insulating wall panels.

Fontana, J.J.; Steinberg, M.; Reams, W.

1985-08-01T23:59:59.000Z

15

Seismic demands in precast concrete diaphragms  

E-Print Network [OSTI]

Reinforced and Prestressed Concrete Walls. Journal ofPrestressed and Precast Concrete Structures. PCI Journal ,methodology for precast concrete diaphragms part 2: Research

Schoettler, Matthew John

2010-01-01T23:59:59.000Z

16

Sustainability of Concrete forSustainability of Concrete for Infrastructure  

E-Print Network [OSTI]

Sustainability of Concrete forSustainability of Concrete for Infrastructure Dr. Jason H. Ideker limits sustainability in concrete materials? ­ Degradation: Alkali-silica reaction ­ Environmental for infrastructure rehabilitation and rapid repair ­ Instrumentation and monitoring to track performance · Testing

Bertini, Robert L.

17

Magnetic Resonance Imaging of concrete  

E-Print Network [OSTI]

velocity Relates Elastic modulus to speed of sound Assumes Concrete heterogeneous Can be affected by steel Modulus related to speed of sound Strength of concrete related to modulus Location of flaws structure In both cases procedure is destructive Systems to monitor concrete modulus Ultra-sonic pulse

Burgoyne, Chris

18

Electroosmotic decontamination of concrete  

SciTech Connect (OSTI)

A method is described for the electroosmotic decontamination of concrete surfaces, in which an electrical field is used to induce migration of ionic contaminants from porous concrete into an electrolyte solution that may be disposed of as a low-level liquid radioactive waste (LLRW); alternately, the contaminants from the solution can be sorbed onto anion exchange media in order to prevent contaminant buildup in the solution and to minimize the amount of LLRW generated. We have confirmed the removal of uranium (and infer the removal of {sup 99}Tc) from previously contaminated concrete surfaces. In a typical experimental configuration, a stainless steel mesh is placed in an electrolyte solution contained within a diked cell to serve as the negative electrode (cathode) and contaminant collection medium, respectively, and an existing metal penetration (e.g., piping, conduit, or rebar reinforcement within the concrete surface) serves as the positive electrode (anode) to complete the cell. Typically we have achieved 70 to >90% reductions in surface activity by applying <400 V and <1 A for 1--3 h (energy consumption of 0.4--12 kWh/ft{sup 2}).

Bostick, W.D.; Bush, S.A.; Marsh, G.C.; Henson, H.M. [Oak Ridge K-25 Site, TN (United States); Box, W.D.; Morgan, I.L. [Oak Ridge National Lab., TN (United States)

1993-03-01T23:59:59.000Z

19

High temperature polymer concrete  

DOE Patents [OSTI]

This invention is concerned with a polymer concrete composition, which is a two-component composition useful with many bases including metal. Component A, the aggregate composition, is broadly composed of silica, silica flour, portland cement, and acrylamide, whereas Component B, which is primarily vinyl and acrylyl reactive monomers, is a liquid system.

Fontana, J.J.; Reams, W.

1984-05-29T23:59:59.000Z

20

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

E-Print Network [OSTI]

Foam-protected reinforced concrete structures under impact:and Repair of Reinforced Concrete with Carbon Overlays."Polymer Reinforcement for Concrete Structures (FRPRCS-08),

Oesterle, Michael G.

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Concrete containment aging study  

SciTech Connect (OSTI)

In 1989, IAEA initiated a pilot study on the management of aging of nuclear power plant components. The Phase I and II studies of concrete containment are discussed. With the data base, plant owners will be able to review and enhance their existing programs. IAEA will analyze data provided by participating plants and the report is scheduled to be released by late 1994 (final report release mid-1995).

Pachner, J. [International Atomic Energy Agency, Vienna (Austria); Tai, T.M. [Bechtel National, Inc., Oak Ridge, TN (United States); Naus, D. [Oak Ridge National Lab., TN (United States)

1994-04-01T23:59:59.000Z

22

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

E-Print Network [OSTI]

suited for testing reinforced concrete and concrete masonrytesting on mitigation strategies of reinforced concrete andConcrete Masonry Unit COR Coefficient of Restitution DIF Dynamic Increase Factor EMRTC Energetic Materials Research and Testing

Oesterle, Michael G.

2009-01-01T23:59:59.000Z

23

WIRELESS SENSORS EMBEDDED IN CONCRETE Amal Abbadi  

E-Print Network [OSTI]

WIRELESS SENSORS EMBEDDED IN CONCRETE Amal Abbadi 1 Phd Student, IRCICA, IEMN, Université Lille1 antennas with concrete are investigated at 860MHz. Simulations for different cases (different concrete are presented. KEYWORDS : Wireless sensor networks, concrete attenuation, embedded antenna, concrete

Paris-Sud XI, Université de

24

Preferred orientation of ettringite in concrete fractures  

E-Print Network [OSTI]

Z. (1988). Cement and Concrete Research , 18 , 823-829.R. (2006). Cement and Concrete Research 36 , 364-370.P.K. & Monteiro, P.J.M. (2006). Concrete. Microstructure,

Wenk, Hans-Rudolf

2009-01-01T23:59:59.000Z

25

Seismic demands in precast concrete diaphragms  

E-Print Network [OSTI]

2004). Load testing of a Precast Concrete Double-Tee FlangeStructural Testing, SP 211-8, American Concrete Institute,shake table testing of a precast concrete building, was

Schoettler, Matthew John

2010-01-01T23:59:59.000Z

26

Asphalt and Asphaltic Concrete  

E-Print Network [OSTI]

, and combined curb and gutter furnished and set, the rate for resetting old curbing; the rate per cubic yard for extra concrete, if any is used; the price per cubic yard for broken stone or gravel; the rate per square yard for paving and for relaying old...- tified and given access to the same at least ten days be- fore it is required for use, and any work in which re- jected cement was used will be rejected altogether. 5. The cement shall be packed in strong bags having printed on the outside the brand...

Young, A. R.

1914-05-01T23:59:59.000Z

27

Corrosion resistant concrete using corrosion resistant steel.  

E-Print Network [OSTI]

??Corrosion of reinforced concrete is a major concern in the United States infrastructure. It is possible to create corrosion resistant concrete structures throughcareful evaluation of (more)

Beh, David

2013-01-01T23:59:59.000Z

28

CRAD, Nuclear Facility Construction - Structural Concrete, May...  

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

CRAD, Nuclear Facility Construction - Structural Concrete, May 29, 2009 CRAD, Nuclear Facility Construction - Structural Concrete, May 29, 2009 May 29, 2009 Nuclear Facility...

29

DATABASE FOR PREMATURE CONCRETE DETERIORATION  

E-Print Network [OSTI]

0-4085-P3 DATABASE FOR PREMATURE CONCRETE DETERIORATION Author: Kevin J. Folliard Project 0. This product presents the architecture for a database to collect relevant information on materials and mixture in developing and populating various materials- and structures-specific databases for both new concrete

Texas at Austin, University of

30

THE JAPAN PRESSS PRECAST CONCRETE  

E-Print Network [OSTI]

Properties Demand performance Strong Connec- tion Outside of plastic hinge yield stiffness equivalent yield located at plastic hinges are allowed by emu- lating cast-in-place concrete connections. #12;5 DESIGN-in-place concrete #12;7 PERFORMANCE DEMAND TO CONNECTIONS: Seismic Load : Performance-based Approach Load Members

Shiohara, Hitoshi

31

Sihang Wei, Daniel Kuchma Gauging of Concrete Crossties to Investigate  

E-Print Network [OSTI]

of Concrete Crossties to Investigate Load Path in Laboratory and Field Testing Mechanistic Design Framework: Concrete Material Properties Concrete core testing Newmark, UIUC Crosstie center positive bending test Testing Background: Concrete Crosstie Design Cracking Moment Concrete compressive strength From crosstie

Barkan, Christopher P.L.

32

Nuclear Power Plant Concrete Structures  

SciTech Connect (OSTI)

A nuclear power plant (NPP) involves complex engineering structures that are significant items of the structures, systems and components (SSC) important to the safe and reliable operation of the NPP. Concrete is the commonly used civil engineering construction material in the nuclear industry because of a number of advantageous properties. The NPP concrete structures underwent a great degree of evolution, since the commissioning of first NPP in early 1960. The increasing concern with time related to safety of the public and environment, and degradation of concrete structures due to ageing related phenomena are the driving forces for such evolution. The concrete technology underwent rapid development with the advent of chemical admixtures of plasticizer/super plasticizer category as well as viscosity modifiers and mineral admixtures like fly ash and silica fume. Application of high performance concrete (HPC) developed with chemical and mineral admixtures has been witnessed in the construction of NPP structures. Along with the beneficial effect, the use of admixtures in concrete has posed a number of challenges as well in design and construction. This along with the prospect of continuing operation beyond design life, especially after 60 years, the impact of extreme natural events ( as in the case of Fukushima NPP accident) and human induced events (e.g. commercial aircraft crash like the event of September 11th 2001) has led to further development in the area of NPP concrete structures. The present paper aims at providing an account of evolution of NPP concrete structures in last two decades by summarizing the development in the areas of concrete technology, design methodology and construction techniques, maintenance and ageing management of concrete structures.

Basu, Prabir [International Atomic Energy Agency (IAEA)] [International Atomic Energy Agency (IAEA); Labbe, Pierre [Electricity of France (EDF)] [Electricity of France (EDF); Naus, Dan [Oak Ridge National Laboratory (ORNL)] [Oak Ridge National Laboratory (ORNL)

2013-01-01T23:59:59.000Z

33

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 2. AMENDMENT/MODIFICATION NO  

E-Print Network [OSTI]

extended. Offers musi acknowledge ceceipl of this amendment prior to the hour and dale specified copies oflhe amendment, (b) By acknowledging receipt ol this amendment on each copy of the offer and amendment numbers FAILURE OF YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT

34

The Building Standard (Scotland) Amendment Regulations 1964  

E-Print Network [OSTI]

STATUTORY INSTRUMENTS 1964 No. 802 (S. 50) BUILDING AND BUILDINGS The Building Standards (Scotland) Amendment Regulations 1964...

Noble, Michael

1964-01-01T23:59:59.000Z

35

Reasoning with Concrete Domains Carsten Lutz  

E-Print Network [OSTI]

Reasoning with Concrete Domains Carsten Lutz RWTH Aachen, LuFg Theoretical Computer Science. Concrete domains allow the integration of description logic reasoning with reasoning about concrete objects for building real­world applications, is widely accepted. How­ ever, the complexity of reasoning with concrete

Lutz, Carsten

36

NCC Technical Training Opportunity in Concrete  

E-Print Network [OSTI]

NCC Technical Training Opportunity in Concrete Pavement Technology National Concrete Consortium training through the National Concrete Pavement Technology Center (CP Tech Center). · Michigan Tech for Concrete Pavement: You may select specific subjects within the manual for emphasis if that is of interest

37

Testing of concrete by laser ablation  

DOE Patents [OSTI]

A method of testing concrete in a structure in situ, by: directing a succession of pulses of laser radiation at a point on the structure so that each pulse effects removal of a quantity of concrete and transfers energy to the concrete; detecting a characteristic of energy which has been transferred to the concrete; determining, separately from the detecting step, the total quantity of concrete removed by the succession of pulses; and calculating a property of the concrete on the basis of the detected energy characteristic and the determined total quantity of concrete removed.

Flesher, Dann J. (Benton City, WA); Becker, David L. (Kennewick, WA); Beem, William L. (Kennewick, WA); Berry, Tommy C. (Kennewick, WA); Cannon, N. Scott (Kennewick, WA)

1997-01-01T23:59:59.000Z

38

Testing of concrete by laser ablation  

DOE Patents [OSTI]

A method is disclosed for testing concrete in a structure in situ, by: directing a succession of pulses of laser radiation at a point on the structure so that each pulse effects removal of a quantity of concrete and transfers energy to the concrete; detecting a characteristic of energy which has been transferred to the concrete; determining, separately from the detecting step, the total quantity of concrete removed by the succession of pulses; and calculating a property of the concrete on the basis of the detected energy characteristic and the determined total quantity of concrete removed. 1 fig.

Flesher, D.J.; Becker, D.L.; Beem, W.L.; Berry, T.C.; Cannon, N.S.

1997-01-07T23:59:59.000Z

39

CONCRETE PAVING & TEXTURING FOR SUSTAINABILITY  

E-Print Network [OSTI]

CONCRETE PAVING & TEXTURING FOR SUSTAINABILITY Bernard Igbafen Izevbekhai, Research Operations 2012 #12;OUTLINE #12;SUSTAINABILITY · Meeting the needs of the present generation without compromising Brundtland Commission in 1987: · Successful application of the principles of sustainable development lies

Minnesota, University of

40

Electrically conductive polymer concrete coatings  

DOE Patents [OSTI]

A sprayable electrically conductive polymer concrete coating for vertical and overhead applications is described. The coating is permeable yet has low electrical resistivity (<10 ohm-cm), good bond strength to concrete substrates, and good weatherability. A preferred formulation contains about 60 wt% calcined coke breeze, 40 wt% vinyl ester resin with 3.5 wt% modified bentonite clay. Such formulations apply evenly and provide enough rigidity for vertical or overhead structures so there is no drip or sag. 4 tabs.

Fontana, J.J.; Elling, D.; Reams, W.

1988-05-26T23:59:59.000Z

Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Electrically conductive polymer concrete coatings  

DOE Patents [OSTI]

A sprayable electrically conductive polymer concrete coating for vertical d overhead applications is described. The coating is permeable yet has low electrical resistivity (<10 ohm-cm), good bond strength to concrete substrates, and good weatherability. A preferred formulation contains about 60 wt % calcined coke breeze, 40 wt % vinyl ester with 3.5 wt % modified bentonite clay. Such formulations apply evenly and provide enough rigidity for vertical or overhead structures so there is no drip or sag.

Fontana, Jack J. (Shirley, NY); Elling, David (Centereach, NY); Reams, Walter (Shirley, NY)

1990-01-01T23:59:59.000Z

42

Electrically conductive polymer concrete coatings  

DOE Patents [OSTI]

A sprayable electrically conductive polymer concrete coating for vertical d overhead applications is described. The coating is permeable yet has low electrical resistivity (<10 ohm-cm), good bond strength to concrete substrates, and good weatherability. A preferred formulation contains about 60 wt % calcined coke breeze, 40 wt % vinyl ester with 3.5 wt % modified bentonite clay. Such formulations apply evenly and provide enough rigidity for vertical or overhead structures so there is no drip or sag.

Fontana, J.J.; Elling, D.; Reams, W.

1990-03-13T23:59:59.000Z

43

Amended Silicated for Mercury Control  

SciTech Connect (OSTI)

Amended Silicates{trademark}, a powdered, noncarbon mercury-control sorbent, was tested at Duke Energy's Miami Fort Station, Unit 6 during the first quarter of 2006. Unit 6 is a 175-MW boiler with a cold-side electrostatic precipitator (ESP). The plant burns run-of-the-river eastern bituminous coal with typical ash contents ranging from 8-15% and sulfur contents from 1.6-2.6% on an as-received basis. The performance of the Amended Silicates sorbent was compared with that for powdered activated carbon (PAC). The trial began with a period of baseline monitoring during which no sorbent was injected. Sampling during this and subsequent periods indicated mercury capture by the native fly ash was less than 10%. After the baseline period, Amended Silicates sorbent was injected at several different ratios, followed by a 30-day trial at a fixed injection ratio of 5-6 lb/MMACF. After this period, PAC was injected to provide a comparison. Approximately 40% mercury control was achieved for both the Amended Silicates sorbent and PAC at injection ratios of 5-6 lbs/MMACF. Higher injection ratios did not achieve significantly increased removal. Similar removal efficiencies have been reported for PAC injection trials at other plants with cold-side ESPs, most notably for plants using medium to high sulfur coal. Sorbent injection did not detrimentally impact plant operations and testing confirmed that the use of Amended Silicates sorbent does not degrade fly ash quality (unlike PAC). The cost for mercury control using either PAC or Amended Silicates sorbent was estimated to be equivalent if fly ash sales are not a consideration. However, if the plant did sell fly ash, the effective cost for mercury control could more than double if those sales were no longer possible, due to lost by-product sales and additional cost for waste disposal. Accordingly, the use of Amended Silicates sorbent could reduce the overall cost of mercury control by 50% or more versus PAC for locations where fly ash is sold as a by-product.

James Butz; Thomas Broderick; Craig Turchi

2006-12-31T23:59:59.000Z

44

Seismic design, testing and analysis of reinforced concrete wall buildings  

E-Print Network [OSTI]

of Slender Reinforced Concrete Walls. Structural Journal,T. (1975). Reinforced Concrete Structures. John Wiley &Design of Reinforced Concrete and Masonry Buildings. John

Panagiotou, Marios

2008-01-01T23:59:59.000Z

45

Nonlinear seismic response analysis of steel-concrete composite frames  

E-Print Network [OSTI]

formulation of nonlinear steel- concrete composite beam ele-Behaviour of Composite Steel and Concrete Struc- turalE. (2001). Analysis of steel-concrete composite frames with

Barbato, Michele

2008-01-01T23:59:59.000Z

46

Reliability based assessment of FRP rehabilitation of reinforced concrete girders  

E-Print Network [OSTI]

Polymer Reinforcing Bars in Concrete Environment. 2002 ,Corrosion of Steel in Concrete; Wiley-VCH: Weinheim, 2004.Mitchell, D. Prestressed Concrete Structures; Prentice Hall:

Wilcox, Patrick Carlo

2008-01-01T23:59:59.000Z

47

Seismic design, testing and analysis of reinforced concrete wall buildings  

E-Print Network [OSTI]

based on the material testing data of concrete cylinders inDESIGN, TESTING AND ANALYSIS OF REINFORCED CONCRETE WALLDESIGN, TESTING AND ANALYSIS OF REINFORCED CONCRETE WALL

Panagiotou, Marios

2008-01-01T23:59:59.000Z

48

Large-Scale Testing of Steel-Reinforced Concrete (SRC) Coupling Beams Embedded into Reinforced Concrete Structural Walls  

E-Print Network [OSTI]

Concrete Cylinder Testing the latter stages of testing, concrete spalling was observedObtained from Concrete Cylinder Testing f' c,test (ksi) ? 0,

Motter, Christopher John

2014-01-01T23:59:59.000Z

49

Glass Concrete Thin Sheets Reinforced with Prestressed Aramid Fabrics  

E-Print Network [OSTI]

Glass Concrete Thin Sheets Reinforced with Prestressed Aramid Fabrics Gregor Vilkner Submitted Glass Concrete Thin Sheets Reinforced with Prestressed Aramid Fabrics Gregor Vilkner Thin sheet concrete presented in this work explored the possibilities of prestressing thin sheet glass concrete products

Meyer, Christian

50

The behaviour of concrete structures in fire  

E-Print Network [OSTI]

The nature of concrete-based structures means that they generally perform very well in fire. However, concrete is a complex material and its properties can change dramatically when exposed to high temperatures. This paper provides a state...

Fletcher, Ian A; Welch, Stephen; Torero, Jose L; Carvel, Ricky O; Usmani, Asif

2007-03-29T23:59:59.000Z

51

Nuclear Facility Construction - Structural Concrete, May 29,...  

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

Nuclear Facility Construction - Structural Concrete, May 29, 2009 (HSS CRAD 64-15, Rev. 0) Nuclear Facility Construction - Structural Concrete, May 29, 2009 (HSS CRAD 64-15, Rev....

52

PERFORMANCE-RELATED SPECIAL PROVISION FOR HIGH PERFORMANCE CONCRETE MIX DESIGNS FOR CONCRETE SUPERSTRUCTURE (Tollway)  

E-Print Network [OSTI]

PERFORMANCE-RELATED SPECIAL PROVISION FOR HIGH PERFORMANCE CONCRETE MIX DESIGNS FOR CONCRETE of designing and furnishing high performance portland cement concrete for special applications to the decks the Illinois Tollway with a methodology to assure high quality concrete with reduced shrinkage potential, while

53

ACHIEVING "GREEN" CONCRETE THROUGH THE USE OF HIGH PERFORMANCE FIBER REINFORCED CONCRETE  

E-Print Network [OSTI]

, the porous and brittle nature of concrete, when interacting with environmental actions such as weathering1 ACHIEVING "GREEN" CONCRETE THROUGH THE USE OF HIGH PERFORMANCE FIBER REINFORCED CONCRETE Shih-Ho Chao1 , A. M., ASCE ABSTRACT Concrete is one of the most widely used materials for infrastructure all

Chao, Shih-Ho

54

CPI Concrete Plant International 2 | 2013 www.cpi-worldwide.com2 PRECAST CONCRETE ELEMENTS  

E-Print Network [OSTI]

CPI ­ Concrete Plant International ­ 2 | 2013 www.cpi-worldwide.com2 PRECAST CONCRETE ELEMENTS with discrete zones of solid concrete can provide a high degree of structural composite action, but also creates the inner and outer wythes of concrete with a steel truss provides a high degree of com- posite action

55

Design and Application of Low Compaction Energy Concrete for Use in Slip-form Concrete  

E-Print Network [OSTI]

Design and Application of Low Compaction Energy Concrete for Use in Slip-form Concrete Paving for the contents or use thereof. #12;1 Optimization of Self-Consolidating Concrete for Slip-form pavement A thesis-form process. Various mix designs based on the concept of Self-Consolidated Concrete were studied, so

56

The Institutes of Technology [as amended by Institutes of Technology,] (Amendment, Act, 1963.  

E-Print Network [OSTI]

The Institutes of Technology Act, 1961 [as amended by Institutes of Technology,] (Amendment, Act, 1963.] Indian Institute of Technology, Powai, Bombay ­ 400 076 #12;THE INSTITUTES OF TECHNOLOGY ACT. THE SCHEDULE #12;THE INSTITUTES OF TECHNOLOGY, ACT, 1961 No. 59 of 1961 [as amended by Institutes of Technology

Sivalingam, Krishna M.

57

Microsoft Word - Alcoa_amendment_CX.docx  

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

level of service under an existing power sales contract to a facility (the Intalco smelter) that is already in existence and currently operating. The amendment would extend...

58

PCC Mix Designs Using Recycled Concrete  

E-Print Network [OSTI]

PCC Mix Designs Using Recycled Concrete Pavements Mary E. Vancura, Derek Tompkins, & Lev Khazanovich 21st Annual Transportation Research Conference #12;·! Reassessment of recycled concrete aggregate (RCA) use in rigid pavements ·! History of RCA use ·! Characteristics of RCA concrete ·! RCA production

Minnesota, University of

59

Concrete Domains and Nominals United Carlos Areces  

E-Print Network [OSTI]

Concrete Domains and Nominals United Carlos Areces University of Amsterdam The Netherlands carlos(D), the extension of ALC with concrete domains, is known to be PSpace-complete, in this article we show on the concrete domain D used). The proof is by a reduction of a NExpTime-complete variant of the domino problem

Lutz, Carsten

60

Quick-setting concrete and a method for making quick-setting concrete  

DOE Patents [OSTI]

A method for producing quick setting concrete is provided comprising hydrng a concrete dry mixture with carbonate solution to create a slurry, and allowing the slurry to cure. The invention also provides for a quick setting concrete having a predetermined proportion of CaCO.sub.3 of between 5 and 23 weight percent of the entire concrete mixture, and whereby the concrete has a compression strength of approximately 4,000 pounds per square inch (psi) within 24 hours after pouring.

Wagh, Arun S. (Joliet, IL); Singh, Dileep (Westmont, IL); Pullockaran, Jose D. (Trenton, NJ); Knox, Lerry (Glen Ellyn, IL)

1997-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Gina Ahlstrom Concrete Pavement Engineer  

E-Print Network [OSTI]

" "Diagnosis Prognosis and Mitigation of Alkali-Silica Reaction (ASR) in Transportation Structures" #12;FHWA;Performance Approach ASTM C 1293 Concrete PrismTest Testing the ability of SCM's or chemical admixtures, such as lithium, to control ASR. Guidelines provided for testing lithium nitrate. Criteria for expansion is 0

62

EIS-0441: Amended Notice of Availability of a Draft Environmental...  

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

Amended Notice of Availability of a Draft Environmental Impact Statement Mohave County Wind Farm Project, Mohave County, Arizona EPA is amending the Notice of Availability for...

63

Amendment to Funding Opportunity Announcement, DE-FOA-0000522...  

Energy Savers [EERE]

Amendment to Funding Opportunity Announcement, DE-FOA-0000522: Geothermal Technology Advancement for Rapid Development of Resources in the U.S. Amendment to Funding Opportunity...

64

Enforcement Guidance Supplement 00-02: Price-Anderson Amendment...  

Office of Environmental Management (EM)

Enforcement Guidance Supplement 00-02: Price-Anderson Amendment Act (PAAA) Program Reviews Enforcement Guidance Supplement 00-02: Price-Anderson Amendment Act (PAAA) Program...

65

Amended Application for Presidential Permit OE Docket No: PP...  

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

PP-371 Amended Northern Pass Transmission FRN More Documents & Publications Amended Notice of Intent To Modify the Scope of the EIS and Conduct Additional Public Scoping Meetings,...

66

PHOSPHORUS IN ALUM AMENDED POULTRY LITTER SYSTEMS: DISTRIBUTION, SPECIATION, AND  

E-Print Network [OSTI]

PHOSPHORUS IN ALUM AMENDED POULTRY LITTER SYSTEMS: DISTRIBUTION, SPECIATION, AND INTERACTIONS;PHOSPHORUS IN ALUM AMENDED POULTRY LITTER SYSTEMS: DISTRIBUTION, SPECIATION, AND INTERACTIONS WITH ALUMINUM

Sparks, Donald L.

67

Final Rule on Amending Eligibility Provisions to Multifamily...  

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

on Amending Eligibility Provisions to Multifamily Buildings for the Weatherization Assistance Program Final Rule on Amending Eligibility Provisions to Multifamily Buildings for...

68

Radionuclide Retention in Concrete Wasteforms  

SciTech Connect (OSTI)

Assessing long-term performance of Category 3 waste cement grouts for radionuclide encasement requires knowledge of the radionuclide-cement interactions and mechanisms of retention (i.e., sorption or precipitation); the mechanism of contaminant release; the significance of contaminant release pathways; how wasteform performance is affected by the full range of environmental conditions within the disposal facility; the process of wasteform aging under conditions that are representative of processes occurring in response to changing environmental conditions within the disposal facility; the effect of wasteform aging on chemical, physical, and radiological properties; and the associated impact on contaminant release. This knowledge will enable accurate prediction of radionuclide fate when the wasteforms come in contact with groundwater. The information present in the report provides data that (1) measures the effect of concrete wasteform properties likely to influence radionuclide migration; and (2) quantifies the rate of carbonation of concrete materials in a simulated vadose zone repository.

Bovaird, Chase C.; Jansik, Danielle P.; Wellman, Dawn M.; Wood, Marcus I.

2011-09-30T23:59:59.000Z

69

EFFECTIVE TENSILE STRESS-STRAIN CHARACTERISTICS FOR REINFORCED CONCRETE  

E-Print Network [OSTI]

EFFECTIVE TENSILE STRESS-STRAIN CHARACTERISTICS FOR REINFORCED CONCRETE L. Hwang, Graduate Student of reinforced concrete structures, the concrete continues to contribute to the effective stiffness of structures for reinforced concrete developed for analysis of reinforced and/or prestressed concrete structures. The model

70

Design and Application of Low Compaction Energy Concrete for  

E-Print Network [OSTI]

Design and Application of Low Compaction Energy Concrete for Use in Slip-form Concrete Paving of cement pastes and the green strength of concretes Slipform self-consolidating concrete (SFSCC) requires sufficient flowability in order to consolidate without the use of internal vibration. However, this concrete

71

GRANCRETE FOR FLEXURAL STRENGTHENING OF CONCRETE STRUCTURES  

E-Print Network [OSTI]

the concrete to the fibers (ACI 440.2R-08). Research conducted at Lulea University of Technology in Sweden has

72

Pentek concrete scabbling system: Baseline report; Summary  

SciTech Connect (OSTI)

The Pentek concrete scabbling system consists of the MOOSE{reg_sign} scabbler, the SQUIRREL{reg_sign}-I and SQUIRREL{reg_sign}-III scabblers, and VAC-PAC. The scabblers are designed to scarify concrete floors and slabs using cross section, tungsten carbide tipped bits. The bits are designed to remove concrete in 3/8 inch increments. The bits are either 9-tooth or demolition type. The scabblers are used with a vacuum system designed to collect and filter the concrete dust and contamination that is removed from the surface. The safety and health evaluation during the human factors assessment focused on two main areas: noise and dust.

NONE

1997-07-31T23:59:59.000Z

73

Concrete Pour in NSLS-II Ring  

ScienceCinema (OSTI)

The mezzanine floor of the ring building tunnel for NSLS-II was completed when the last concrete was placed in February 2011.

Bruno Semon

2013-07-22T23:59:59.000Z

74

Optimization Online - Concrete Structure Design Using Mixed ...  

E-Print Network [OSTI]

Nov 26, 2009 ... Abstract: We present a mixed-integer nonlinear programming (MINLP) formulation to achieve minimum-cost designs for reinforced concrete...

Andres Guerra

2009-11-26T23:59:59.000Z

75

RFP Amendment_002a.pdf  

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

2 Page 2 of 2 Block 14 "DESCRIPTION OF AMENDMENTMODIFICATION," continued. This amendment is issued to revise Request for Proposal No. DE-SOL-0001458 as described herein. Deletions...

76

Clean Air Act Amendments of 1990  

E-Print Network [OSTI]

Congress is currently debating amendments to the Clean Air Act which would strengthen and enhance the current Clean Air Act. The bill would guarantee a reduction of 10 million tons of sulfur dioxide from 1980 levels; would sharply reduce pollutants...

Hanneschlager, R. E.

77

The life cycle assessment of concrete manufacturing in Kuwait  

E-Print Network [OSTI]

Concrete is the second most widely used material in the world after water. Annually 9,120 million tons of concrete are produced, which is an equivalent of 1.3 tons of concrete per individual. As the world's primary ...

El Mostafa, Mayce (Mayce A.)

2013-01-01T23:59:59.000Z

78

Journal of Educational Psychology Applying Grounded Coordination Challenges to Concrete  

E-Print Network [OSTI]

Journal of Educational Psychology Applying Grounded Coordination Challenges to Concrete Learning, M. I. (2013, August 19). Applying Grounded Coordination Challenges to Concrete Learning Materials.1037/a0034098 #12;Applying Grounded Coordination Challenges to Concrete Learning Materials: A Study

79

Integrated Materials and Construction Practices (IMCP) for Concrete Pavement  

E-Print Network [OSTI]

Integrated Materials and Construction Practices (IMCP) for Concrete Pavement Workshop Participant Handbook Prepared for Prepared by Federal Highway Administration National Concrete Pavement Technology and Construction Practices for Concrete Pavements Workshop Participant Handbook--Front Matter i Technical Report

80

High temperature polymer concrete compositions  

DOE Patents [OSTI]

This invention is concerned with a polymer concrete composition, which is a two-component composition useful with many bases including metal. Component A, the aggregate composition, is broadly composed of silica, silica flour, portland cement, and acrylamide, whereas Component B, which is primarily vinyl and acrylyl reactive monomers, is a liquid system. A preferred formulation emphasizing the major necessary components is as follows: ______________________________________ Component A: Silica sand 60-77 wt. % Silica flour 5-10 wt. % Portland cement 15-25 wt. % Acrylamide 1-5 wt. % Component B: Styrene 50-60 wt. % Trimethylolpropane 35-40 wt. % trimethacrylate ______________________________________ and necessary initiators, accelerators, and surfactants.

Fontana, Jack J. (Shirley, NY); Reams, Walter (Shirley, NY)

1985-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Quick-setting concrete and a method for making quick-setting concrete  

DOE Patents [OSTI]

A method for producing quick setting concrete is provided comprising mixing a concrete dry mixture with carbonate solution to create a slurry, and allowing the slurry to cure. The invention also provides for a quick setting concrete having a predetermined proportion of CaCO{sub 3} of between 5 and 23 weight percent of the entire concrete mixture, and whereby the concrete has a compression strength of approximately 4,000 pounds per square inch (psi) within 24 hours after pouring. 2 figs.

Wagh, A.S.; Singh, D.; Pullockaran, J.D.; Knox, L.

1997-04-29T23:59:59.000Z

82

Nonlinear seismic response analysis of steel-concrete composite frames  

E-Print Network [OSTI]

of nonlinear steel- concrete composite beam ele- ment. Tests and analysis of composite beams with incom- pleteElementary Behaviour of Composite Steel and Concrete Struc-

Barbato, Michele

2008-01-01T23:59:59.000Z

83

Semirealism, Concrete Structures and Theory Change Michel Ghins  

E-Print Network [OSTI]

Semirealism, Concrete Structures and Theory Change Michel Ghins Received: 15 November 2012 metaphysics for scientific realism. First, if particulars and laws are concrete structures, namely actual

Chakravartty, Anjan

84

SURVEY OF MODELS FOR CONCRETE DEGRADATION  

SciTech Connect (OSTI)

Concrete has been used in the construction of nuclear facilities because of two primary properties: its structural strength and its ability to shield radiation. Concrete structures have been known to last for hundreds of years, but they are also known to deteriorate in very short periods of time under adverse conditions. The use of concrete in nuclear facilities for containment and shielding of radiation and radioactive materials has made its performance crucial for the safe operation of the facility. The goal of this report is to review and document the main aging mechanisms of concern for concrete structures in nuclear power plants (NPPs) and the models used in simulations of concrete aging and structural response of degraded concrete structures. This is in preparation for future work to develop and apply models for aging processes and response of aged NPP concrete structures in the Grizzly code. To that end, this report also provides recommendations for developing more robust predictive models for aging effects of performance of concrete.

Spencer, Benjamin W [Idaho National Laboratory; Huang, Hai [Idaho Nation Laboratory

2014-08-01T23:59:59.000Z

85

Comprehensive Database on Concrete Creep and Shrinkage  

E-Print Network [OSTI]

Comprehensive Database on Concrete Creep and Shrinkage Zdenek P. Bazant and Guang-Hua Li Structural Database on Concrete Creep and Shrinkage Zdenek P. Bazant1 and Guang-Hua Li2 Abstract: As a sequel to the first large database created at Northwestern University in 1978, the paper presents a further

86

Stability design of long precast concrete beams  

E-Print Network [OSTI]

Stability design of long precast concrete beams T. J. Stratford, BA, MEng, C. J. Burgoyne BA, MSc needed for design engineers to check the stability of precast concrete beams when simply supported loads can be determined and how estimates can be made of the eect of imperfections both in the beam

Burgoyne, Chris

87

Lateral stability of long precast concrete beams  

E-Print Network [OSTI]

Lateral stability of long precast concrete beams T. J. Stratford, BA, BEng, and C. J. Burgoyne, BA, MSc, CEng, MICE & Modern precast concrete bridge beams are becoming increasingly long and slender, making them more susceptible to buckling failure. This paper shows that once the beam is positioned

Burgoyne, Chris

88

Radionuclide Retention in Concrete Wasteforms  

SciTech Connect (OSTI)

Assessing long-term performance of Category 3 waste cement grouts for radionuclide encasement requires knowledge of the radionuclide-cement interactions and mechanisms of retention (i.e., sorption or precipitation); the mechanism of contaminant release; the significance of contaminant release pathways; how wasteform performance is affected by the full range of environmental conditions within the disposal facility; the process of wasteform aging under conditions that are representative of processes occurring in response to changing environmental conditions within the disposal facility; the effect of wasteform aging on chemical, physical, and radiological properties; and the associated impact on contaminant release. This knowledge will enable accurate prediction of radionuclide fate when the wasteforms come in contact with groundwater. Data collected throughout the course of this work will be used to quantify the efficacy of concrete wasteforms, similar to those used in the disposal of LLW and MLLW, for the immobilization of key radionuclides (i.e., uranium, technetium, and iodine). Data collected will also be used to quantify the physical and chemical properties of the concrete affecting radionuclide retention.

Wellman, Dawn M.; Jansik, Danielle P.; Golovich, Elizabeth C.; Cordova, Elsa A.

2012-09-24T23:59:59.000Z

89

Quick-setting concrete and a method for making quick-setting concrete  

SciTech Connect (OSTI)

This invention relates to a method for producing concrete, and more specifically, this invention relates to a method for producing quick-setting concrete while simultaneously minimizing the release of carbon dioxide to the atmosphere, said release of carbon dioxide inherent in cement production. A method for producing quick setting concrete comprises hydrating a concrete dry mixture with carbonate solution to create a slurry, and allowing the slurry to cure. The invention also provides for a quick setting concrete having a predetermined proportion of CaCO{sub 3} of between 5 and 23 weight percent of the entire concrete mixture, and whereby the concrete has a compression strength of approximately 4,000 pounds per square inch (psi) within 24 hours after pouring.

Wagh, A.S.; Singh, D.; Pullockaran, J.D.; Knox, L.

1995-12-31T23:59:59.000Z

90

Amendment 80 vessel replacement 1 Implementation and of Amendment 80 Vessel Replacement Provisions  

E-Print Network [OSTI]

Amendment 80 vessel replacement 1 Implementation and of Amendment 80 Vessel Replacement Provisions vessels to use non-qualifying vessels in the sector, thus allowing replacement of a lost qualifying vessel of the CRP ambiguous as to whether replacement of qualifying vessels with non-qualifying vessels

91

STRUCTURAL PERFORMANCE OF DEGRADED REINFORCED CONCRETE MEMBERS.  

SciTech Connect (OSTI)

This paper describes the results of a study to evaluate, in probabilistic terms, the effects of age-related degradation on the structural performance of reinforced concrete members at nuclear power plants. The paper focuses on degradation of reinforced concrete flexural members and shear walls due to the loss of steel reinforcing area and loss of concrete area (cracking/spalling). Loss of steel area is typically caused by corrosion while cracking and spalling can be caused by corrosion of reinforcing steel, freeze-thaw, or aggressive chemical attack. Structural performance in the presence of uncertainties is depicted by a fragility (or conditional probability of failure). The effects of degradation on the fragility of reinforced concrete members are calculated to assess the potential significance of various levels of degradation. The fragility modeling procedures applied to degraded concrete members can be used to assess the effects of degradation on plant risk and can lead to the development of probability-based degradation acceptance limits.

Braverman, J.I.; Miller, C.A.; Ellingwood, B.R.; Naus, D.J.; Hofmayer, C.H.; Bezler, P.; Chang, T.Y.

2001-03-22T23:59:59.000Z

92

FLORIDA ATLANTIC UNIVERSITY NOTICE OF PROPOSED REGULATION AMENDMENT  

E-Print Network [OSTI]

and Loitering, was last amended in November 1987 and requires amendment to conform with new administrative/REPEAL OF REGULATIONS IS: Myrlande Dessalines, Paralegal, Office of the General Counsel, 777 Glades Road, Boca Raton

Richman, Fred

93

FLORIDA ATLANTIC UNIVERSITY NOTICE OF PROPOSED REGULATION AMENDMENT  

E-Print Network [OSTI]

.005 was last amended in November 1987 and required amendment to conform with new administrative titles Dessalines, Paralegal, Office of the General Counsel, 777 Glades Road, Boca Raton, Florida, 33431, (561) 297

Richman, Fred

94

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 concrete members and design of prestressed concrete members. He is a member in the Egyptian Code for Design

95

POURED EARTH AS CONCRETE Lionel RONSOUX, Mariette MOEVUS, Yves JORAND,  

E-Print Network [OSTI]

1 POURED EARTH AS CONCRETE Lionel RONSOUX, Mariette MOEVUS, Yves JORAND, Sandrine MAXIMILIEN and Contemporary Architecture Keywords: poured earth, clay concrete, grain packing, clay dispersion Abstract: In order to pour an earthen material in a liquid state, as a concrete, technologies used by concrete

Boyer, Edmond

96

Portland Cement Concrete Pavement Shannon Golden, Alabama DOT  

E-Print Network [OSTI]

Portland Cement Concrete Pavement Shannon Golden, Alabama DOT PORTLAND CEMENT CONCRETE PAVEMENT PROJECT · First in Alabama in more than 25 years! · IM-I059 (342) Etowah County ­ I-59 Concrete Pavement Rehabilitation with Unbonded Concrete Overlay ­ Length: 10.9 miles ­ Thickness: 11.0 to 13.5 inches ­ Volume: 300

97

1 INTRODUCTION 1.1 Textile reinforced concrete  

E-Print Network [OSTI]

1 INTRODUCTION 1.1 Textile reinforced concrete Textile reinforced concrete (TRC) is a new cementi on the funda- mentals of shortcut glass fibre reinforced concrete. In order to increase the effectiveness of the fibres embedded in the concrete matrix, the fibres are aligned in the direction of the tensile stresses

Paris-Sud XI, Université de

98

Model-Driven Analysis and Synthesis of Textual Concrete Syntax  

E-Print Network [OSTI]

Model-Driven Analysis and Synthesis of Textual Concrete Syntax Pierre-Alain Muller1 , Frédéric textual concrete syntaxes with meta-models is still a challenge. Textual concrete syntaxes compilers to generate parsers. Unfortunately, these generated parsers produce concrete syntax trees, leaving

Paris-Sud XI, Université de

99

COMPUTATIONAL MODELING OF CONCRETE FLOW: STATE OF THE ART  

E-Print Network [OSTI]

concretes such as Self-Compacting Concrete (SCC) tools for prediction of the form filling of SCC are neededCOMPUTATIONAL MODELING OF CONCRETE FLOW: STATE OF THE ART Nicolas Roussel Laboratoire Central des Lars N. Thrane Concrete Centre, Danish Technological Institute Peter Szabo Department of Chemical

Boyer, Edmond

100

Center for By-Products Utilization High Durability Concrete Using  

E-Print Network [OSTI]

TESTING · Fresh Concrete Properties ·Unit Weight (ASTM C 138) ·Air Content (ASTM C 237) ·Slump (ASTM C 143Center for By-Products Utilization High Durability Concrete Using High-Carbon Fly Ash and Pulp Mill-Products Utilization Durable Concrete in Northern Climates · Producing durable concrete in a freezing and thawing

Saldin, Dilano

Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Carbon dioxide sequestration in concrete in different curing environments  

E-Print Network [OSTI]

Carbon dioxide sequestration in concrete in different curing environments Y.-m. Chun, T.R. Naik, USA ABSTRACT: This paper summarizes the results of an investigation on carbon dioxide (CO2) sequestration in concrete. Concrete mixtures were not air entrained. Concrete mixtures were made containing

Wisconsin-Milwaukee, University of

102

NOTICE OF PROPOSED REGULATION AMENDMENT Date: March 22, 2007  

E-Print Network [OSTI]

.: Florida Solar Energy Center Operations 6C7-8.001 SUMMARY OF REGULATION AMENDMENT: The amendments INITIATED PROPOSED REGULATION AMENDMENT: Philip Fairey, Deputy Director of Florida Solar Energy CenterC7-8.001 Florida Solar Energy Center Operations. (1) The Florida Solar Energy Center, (herein called

Wu, Shin-Tson

103

November 18, 2011 Amendment to Patent Acknowledgment or Agreement;  

E-Print Network [OSTI]

November 18, 2011 Amendment to Patent Acknowledgment or Agreement; Look for E-mail during Week University resources or facilities sign an amendment to the patent document signed by all employees when the Patent Amendment process that commences the week of November 28, 2011. Background The Patent

Leistikow, Bruce N.

104

NOTICE OF PROPOSED REGULATION AMENDMENT Date: April 15, 2009  

E-Print Network [OSTI]

REGULATION AMENDMENT: Philip Fairey, Deputy Director, Florida Solar Energy Center COMMENTS CONCERNING.: Solar Thermal Collector and PV Module Testing Standards UCF-8.002 SUMMARY OF REGULATION AMENDMENT-mail: regulations@mail.ucf.edu FULL TEXT OF THE PROPOSED REGULATION AMENDMENT: UCF6C7-8.002 Solar Thermal Collector

Wu, Shin-Tson

105

NOTICE OF PROPOSED REGULATION AMENDMENT Date: August 18, 2005  

E-Print Network [OSTI]

.: Florida Solar Energy Center Operations 6C7-8.001 SUMMARY OF REGULATION AMENDMENT: This regulation is revised to update the location of the Florida Solar Energy Center. This regulation is amended also of Florida Solar Energy Center COMMENTS CONCERNING THE PROPOSED REGULATION AMENDMENT SHOULD BE SUBMITTED

Wu, Shin-Tson

106

NOTICE OF PROPOSED REGULATION AMENDMENT Date: August 18, 2005  

E-Print Network [OSTI]

PROPOSED REGULATION AMENDMENT: Philip Fairey, Deputy Director of Florida Solar Energy Center COMMENTS.: Solar Collector Certification 6C7-8.003 SUMMARY OF REGULATION AMENDMENT: This regulation is revised-mail: regulations@mail.ucf.edu FULL TEXT OF THE PROPOSED REGULATION AMENDMENT: 6C7-8.003 Solar Thermal Collector

Wu, Shin-Tson

107

NOTICE OF PROPOSED REGULATION AMENDMENT Date: April 15, 2009  

E-Print Network [OSTI]

REGULATION AMENDMENT: Philip Fairey, Deputy Director, Florida Solar Energy Center COMMENTS CONCERNING.: Solar Thermal Collector and PV Module Certification UCF-8.003 SUMMARY OF REGULATION AMENDMENT-mail: regulations@mail.ucf.edu FULL TEXT OF THE PROPOSED REGULATION AMENDMENT: UCF6C7-8.003 Solar Thermal Collector

Wu, Shin-Tson

108

NOTICE OF PROPOSED REGULATION AMENDMENT Date: April 15, 2009  

E-Print Network [OSTI]

.: Florida Solar Energy Center Operations UCF-8.001 SUMMARY OF REGULATION AMENDMENT: The regulation Director, Florida Solar Energy Center COMMENTS CONCERNING THE PROPOSED REGULATION AMENDMENT SHOULD TEXT OF THE PROPOSED REGULATION AMENDMENT: UCF6C7-8.001 Florida Solar Energy Center Operations. (1

Wu, Shin-Tson

109

Application for Amendment 80 Vessel Replacement Page 1 of 6  

E-Print Network [OSTI]

Application for Amendment 80 Vessel Replacement Page 1 of 6 Revised: 12/23/2013 OMB Control No. 0648-0565 Expiration Date: 01/31/2016 APPLICATION FOR AMENDMENT 80 VESSEL REPLACEMENT United States OF THE AMENDMENT 80 VESSEL BEING REPLACED 1. Vessel Name: 2. ADF&G Vessel Registration No.: 3. USCG Documentation

110

Computers and Concrete, Vol. 3, No. 5 (2006) 313-334 313 Design optimization of reinforced concrete structures  

E-Print Network [OSTI]

Computers and Concrete, Vol. 3, No. 5 (2006) 313-334 313 Design optimization of reinforced concrete formulation aiming to achieve optimal design of reinforced concrete (RC) structures is presented here. Optimal and placing concrete and steel are incorporated as a function of member size using RS Means 2005 cost data

111

Corrosion rate of steel reinforcement in concrete in seawater and influence of concrete crack width.  

E-Print Network [OSTI]

??This thesis reports a research of the corrosion mechanism and corrosion rate of steel reinforcement in concrete. Experimental results are presented to compare the corrosion (more)

Chang, Zhen-Tian

2007-01-01T23:59:59.000Z

112

Air leakage of Insulated Concrete Form houses  

E-Print Network [OSTI]

Air leakage has been shown to increase building energy use due to additional heating and cooling loads. Although many construction types have been examined for leakage, an exploration of a large number of Insulated Concrete ...

Durschlag, Hannah (Hanna Rebekah)

2012-01-01T23:59:59.000Z

113

Progress Update: H4 Basin Concrete Pour  

ScienceCinema (OSTI)

The Recovery Act funded project in the H area basin. A concrete ditch built longer than half a mile to prevent contaminated water from expanding and to reduce the footprint on the environment.

None

2012-06-14T23:59:59.000Z

114

Performance of Reinforced Concrete Column Lap Splices  

E-Print Network [OSTI]

PERFORMANCE OF REINFORCED CONCRETE COLUMN LAP SPLICES A Thesis by RYAN ALBERSON 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 2009 Major Subject: Civil Engineering PERFORMANCE OF REINFORCED CONCRETE COLUMN LAP SPLICES A Thesis by RYAN ALBERSON Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment...

Alberson, Ryan M.

2010-01-14T23:59:59.000Z

115

San Francisco Building Code Amendments to the  

E-Print Network [OSTI]

1 2010 San Francisco Building Code Amendments to the 2010 California Green Building Standards Code not pertain to energy) Operative date: January 1, 2011 #12;139 Chapter 13C GREEN BUILDING REQUIREMENTS shall be known as the California San Francisco Green Building Standards Code and may be cited

116

San Francisco Building Code Amendments to the  

E-Print Network [OSTI]

Green Building Standards Code 2010 California Residential Code Operative date: January 1, 2011 #12;2 #121 2010 San Francisco Building Code Amendments to the 2010 California Building Code 2010 California;3 CHAPTER 1 SCOPE AND ADMINISTRATION DIVISION I CALIFORNIA ADMINISTRATION No San Francisco Building Code

117

Amendment 25 Fishery Management Plan for  

E-Print Network [OSTI]

-Pie Cooperative Program: Catcher Processor Elements * * * 1.7.2.5 CONVERSION TO CATCHER/PROCESSOR SHARES. (1) This amendment authorizes: (A) an eligible entity holding processor quota shares to elect on an annual basis for the Northern Region; and (B) an eligible entity holding catcher vessel quota shares to elect on an annual basis

118

Life-Cycle Evaluation of Concrete Building Construction as a Strategy for Sustainable Cities  

E-Print Network [OSTI]

of Portland Cement Concrete. P. C. A. [PCA]. Marceau, M.L. ,BIBM) (2009). Sustainable Benefits of Concrete Structures.Brussels, Belgium, European Concrete Platform ASBL ( Bureau

Stadel, Alexander

2013-01-01T23:59:59.000Z

119

Energy Efficiency Improvement and Cost Saving Oportunities for the Concrete Industry  

E-Print Network [OSTI]

cooling concrete with ice, and cooling concrete with liquidcooling concrete with ice, 4) cooling coarse aggregates andcost-effective than cooling water with ice (Lee, 1989). Pre-

Kermeli, Katerina

2013-01-01T23:59:59.000Z

120

Hybrid Simulation of the Seismic Response of Squat Reinforced Concrete Shear Walls  

E-Print Network [OSTI]

ACI Symposium on Reinforced Concrete Structures in SeismicStudies of Reinforced Concrete Walled Bents under Static2009. Update to ASCE/SEI 41 Concrete Provisions, PEER Report

Whyte, Catherine Alexandra

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Energy Efficiency Improvement and Cost Saving Oportunities for the Concrete Industry  

E-Print Network [OSTI]

Armor. 2010. Sustainable Concrete Plant Guidelines, Pilot-B. Ivery, J. Flaherty. 2004. Concrete Batch Plant Operator.National Ready Mixed Concrete Association Fleet Benchmarking

Kermeli, Katerina

2013-01-01T23:59:59.000Z

122

Reliability-based characterization of prefabricated FRP composites for rehabilitation of concrete structures  

E-Print Network [OSTI]

FRP Strengthening of Reinforced Concrete Structures, Ph.D.for Prestressed Concrete Bridge Girders Strengthened withof Reinforced Normal Weight Concrete Members, Structural

Jin, Sung-Jun

2008-01-01T23:59:59.000Z

123

Experimental damage-gas flow correlations for cyclically loaded reinforced concrete walls  

E-Print Network [OSTI]

vessels. Cement and Concrete research, 32, XTRACT (2007).of air permeability in a concrete shear wall subjected tocharacteristics in cracked concrete. Nuclear Engineering

Soppe, Travis E.

2009-01-01T23:59:59.000Z

124

Emerging Energy-efficiency and CO2 Emission-reduction Technologies for Cement and Concrete Production  

E-Print Network [OSTI]

2010. Cement and concrete nanoscience and nanotechnology.of 100 Percent Fly Ash Concrete. 2005 World of Coal Ash (carbon dioxide in precast concrete. TECHNOLOGY REVIEW A

Hasanbeigi, Ali

2013-01-01T23:59:59.000Z

125

E-Print Network 3.0 - aci american concrete Sample Search Results  

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

Fellow Tarun R. Naik... are gratefully acknowledged. REFERENCES 1. Okamura, H., Self-Compacting High Performance Concrete, ACI Concrete... : Expanding the Possibility of Concrete...

126

Experimental damage-gas flow correlations for cyclically loaded reinforced concrete walls  

E-Print Network [OSTI]

of work focused on testing reinforced concrete panels underof work focused on testing reinforced concrete panels underfocuses on testing nine reinforced concrete wall panels

Soppe, Travis E.

2009-01-01T23:59:59.000Z

127

Seismic Performance, Modeling, and Failure Assessment of Reinforced Concrete Shear Wall Buildings  

E-Print Network [OSTI]

J.W. , (2009). Testing and Reinforced Concrete Coupling2010). "Testing and Modeling of Reinforced Concrete Couplingscale testing of four-story reinforced concrete and post-

Tuna, Zeynep

2012-01-01T23:59:59.000Z

128

InstantaneousIn-SituDetermination of Water-CementRatio of Fresh Concrete  

E-Print Network [OSTI]

microstructure of concrete, and testing methods. Steven D.resistivity; fresh concrete; nondestructive testing; qualityin concrete structures, and nondestructive testing methods.

Mancio, Mauricio; Moore, Jeffrey R.; Brooks, Zenzile; Monteiro, Paulo J. M.; Glaser, Steve D.

2010-01-01T23:59:59.000Z

129

Characterization of Effective Built-in Curling and Concrete Pavement Cracking on the Palmdale Test Sections  

E-Print Network [OSTI]

of Concrete and Implications for Choice of Testing Standard.J. R. Non-Destructive Testing of Concrete Pavements forAsphalt Concrete Accelerated Pavement Testing American

Rao, Shreenath; Roesler, Jeffery R.

2005-01-01T23:59:59.000Z

130

Experimental simulations of explosive loading on structural components : reinforced concrete columns with advanced composite jackets  

E-Print Network [OSTI]

5]. 3.A.4 Material Testing Concrete Concrete cylinders wereConcrete Institute ANFO Ammonium Nitrate and Fuel Oil ASTM ASTM International (American Society for Testing

Rodrguez-Nikl, Tonatiuh

2006-01-01T23:59:59.000Z

131

Improving the design and performance of concrete bridges in seismic regions  

E-Print Network [OSTI]

compression testing for both concrete and grout are listedcompression testing for both concrete and grout are listedcompression testing for both concrete and grout are listed

Tobolski, Matthew Joseph

2010-01-01T23:59:59.000Z

132

Flow conditions of fresh mortar and concrete in different pipes  

SciTech Connect (OSTI)

The variation in fresh concrete flow rate over the pipe cross section was investigated on differently coloured and highly flowable concrete mixes flowing through pipes of different materials (rubber, steel, acryl). First, uncoloured (gray) concrete was poured through the pipe and the pipe blocked. Similar but coloured (black) concrete was then poured into the pipe filled with gray concrete, flowing after the gray concrete for a while before being blocked and hardened. The advance of the colouring along the pipe wall (showing boundary flow rate) was observed on the moulded concrete surface appearing after removing the pipe from the hardened concrete. The shapes of the interfaces between uncoloured and coloured concrete (showing variation of flow rate over the pipe cross section) were observed on sawn surfaces of concrete half cylinders cut along the length axes of the concrete-filled pipe. Flow profiles over the pipe cross section were clearly seen with maximum flow rates near the centre of the pipe and low flow rate at the pipe wall (typically rubber pipe with reference concrete without silica fume and/or stabilizers). More plug-shaped profiles, with long slip layers and less variation of flow rate over the cross section, were also seen (typically in smooth acrylic pipes). Flow rate, amount of concrete sticking to the wall after flow and SEM-images of pipe surface roughness were observed, illustrating the problem of testing full scale pumping.

Jacobsen, Stefan, E-mail: stefan.jacobsen@ntnu.n [Norwegian University of Science and Technology, Dept of Structural Engineering, Trondheim (Norway); Haugan, Lars; Hammer, Tor Arne [SINTEF Byggforsk AS Building and Infrastructure, Trondheim (Norway); Kalogiannidis, Evangelos [Norwegian University of Science and Technology, Dept of Structural Engineering, Trondheim (Norway)

2009-11-15T23:59:59.000Z

133

The implications of compartment fire non-uniformity for the membrane action of reinforced concrete slabs  

E-Print Network [OSTI]

to the complexity of concrete material behaviour and also due to concretes reputation of superior fire performance. Concrete technology is, however, continually evolving; structures are increasingly slender, more highly stressed and have higher compressive...

Deeny, Susan

2011-01-01T23:59:59.000Z

134

Energy Efficiency Improvement and Cost Saving Oportunities for the Concrete Industry  

E-Print Network [OSTI]

Applications of Self-Compacting Concrete in Japan, EuropeShutt, C.A. 2002. Self Compacting Concrete Offers DesignConcrete or Self-Compacting Concrete SCMs Supplementary

Kermeli, Katerina

2013-01-01T23:59:59.000Z

135

Nuclear Concrete Materials Database Phase I Development  

SciTech Connect (OSTI)

The FY 2011 accomplishments in Phase I development of the Nuclear Concrete Materials Database to support the Light Water Reactor Sustainability Program are summarized. The database has been developed using the ORNL materials database infrastructure established for the Gen IV Materials Handbook to achieve cost reduction and development efficiency. In this Phase I development, the database has been successfully designed and constructed to manage documents in the Portable Document Format generated from the Structural Materials Handbook that contains nuclear concrete materials data and related information. The completion of the Phase I database has established a solid foundation for Phase II development, in which a digital database will be designed and constructed to manage nuclear concrete materials data in various digitized formats to facilitate electronic and mathematical processing for analysis, modeling, and design applications.

Ren, Weiju [ORNL; Naus, Dan J [ORNL

2012-05-01T23:59:59.000Z

136

TRANSPORT THROUGH CRACKED CONCRETE: LITERATURE REVIEW  

SciTech Connect (OSTI)

Concrete containment structures and cement-based fills and waste forms are used at the Savannah River Site to enhance the performance of shallow land disposal systems designed for containment of low-level radioactive waste. Understanding and measuring transport through cracked concrete is important for describing the initial condition of radioactive waste containment structures at the Savannah River Site (SRS) and for predicting performance of these structures over time. This report transmits the results of a literature review on transport through cracked concrete which was performed by Professor Jason Weiss, Purdue University per SRR0000678 (RFP-RQ00001029-WY). This review complements the NRC-sponsored literature review and assessment of factors relevant to performance of grouted systems for radioactive waste disposal. This review was performed by The Center for Nuclear Waste Regulatory Analyses, San Antonio, TX, and The University of Aberdeen, Aberdeen Scotland and was focused on tank closure. The objective of the literature review on transport through cracked concrete was to identify information in the open literature which can be applied to SRS transport models for cementitious containment structures, fills, and waste forms. In addition, the literature review was intended to: (1) Provide a framework for describing and classifying cracks in containment structures and cementitious materials used in radioactive waste disposal, (2) Document the state of knowledge and research related to transport through cracks in concrete for various exposure conditions, (3) Provide information or methodology for answering several specific questions related to cracking and transport in concrete, and (4) Provide information that can be used to design experiments on transport through cracked samples and actual structures.

Langton, C.

2012-05-11T23:59:59.000Z

137

Concrete material characterization reinforced concrete tank structure Multi-Function Waste Tank Facility  

SciTech Connect (OSTI)

The purpose of this report is to document the Multi-Function Waste Tank Facility (MWTF) Project position on the concrete mechanical properties needed to perform design/analysis calculations for the MWTF secondary concrete structure. This report provides a position on MWTF concrete properties for the Title 1 and Title 2 calculations. The scope of the report is limited to mechanical properties and does not include the thermophysical properties of concrete needed to perform heat transfer calculations. In the 1970`s, a comprehensive series of tests were performed at Construction Technology Laboratories (CTL) on two different Hanford concrete mix designs. Statistical correlations of the CTL data were later generated by Pacific Northwest Laboratories (PNL). These test results and property correlations have been utilized in various design/analysis efforts of Hanford waste tanks. However, due to changes in the concrete design mix and the lower range of MWTF operating temperatures, plus uncertainties in the CTL data and PNL correlations, it was prudent to evaluate the CTL data base and PNL correlations, relative to the MWTF application, and develop a defendable position. The CTL test program for Hanford concrete involved two different mix designs: a 3 kip/in{sup 2} mix and a 4.5 kip/in{sup 2} mix. The proposed 28-day design strength for the MWTF tanks is 5 kip/in{sup 2}. In addition to this design strength difference, there are also differences between the CTL and MWTF mix design details. Also of interest, are the appropriate application of the MWTF concrete properties in performing calculations demonstrating ACI Code compliance. Mix design details and ACI Code issues are addressed in Sections 3.0 and 5.0, respectively. The CTL test program and PNL data correlations focused on a temperature range of 250 to 450 F. The temperature range of interest for the MWTF tank concrete application is 70 to 200 F.

Winkel, B.V.

1995-03-03T23:59:59.000Z

138

Hybrid Simulation of the Seismic Response of Squat Reinforced Concrete Shear Walls  

E-Print Network [OSTI]

quasi-static reinforced concrete testing protocol from ITGOn the days of testing, three concrete cylinders from the

Whyte, Catherine Alexandra

2012-01-01T23:59:59.000Z

139

Set in stone? A perspective on the concrete sustainability challenge  

E-Print Network [OSTI]

As the most abundant engineered material on Earth, concrete is essential to the physical infrastructure of all modern societies. There are no known materials that can replace concrete in terms of cost and availability. ...

Vliet, Krystyn Van J.

140

Illinois: Ozinga Concrete Runs on Natural Gas and Opens Private...  

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

Illinois: Ozinga Concrete Runs on Natural Gas and Opens Private Station Illinois: Ozinga Concrete Runs on Natural Gas and Opens Private Station November 6, 2013 - 12:00am Addthis...

Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Automated crack control analysis for concrete pavement construction  

E-Print Network [OSTI]

The focus of this research is on the control of random cracking in concrete paving by using sawcut notch locations in the early stages of construction. This is a major concern in concrete pavement construction. This research also addresses a...

Jang, Se Hoon

2005-11-01T23:59:59.000Z

142

FRP-to-concrete bond behaviour under high strain rates  

E-Print Network [OSTI]

Fibre reinforced polymer (FRP) composites have been used for strengthening concrete structures since early 1990s. More recently, FRP has been used for retrofitting concrete structures for high energy events such as impact ...

Li, Xiaoqin

2012-06-25T23:59:59.000Z

143

Analytical modeling of composite steel-concrete frame systems  

E-Print Network [OSTI]

of reinforced concrete or composite steel shapes encased in reinforced concrete (SRC), structural steel beams, and composite beam-column joints. To facilitate the modeling of inelastic deformations in joint regions, a panel element capable of representing joint...

Atahan, Ali Osman

1996-01-01T23:59:59.000Z

144

Evaluation of a microplane model for progressive fracture in concrete  

E-Print Network [OSTI]

). These test results laid the foundation for researchers to attack the problem of modeling concrete subjected to multiaxial stresses. Today, many computer codes exist which can model aspects of the behavior of concrete (Colville and Abbasi 1974; Bazant...

Loper, James Harris

1988-01-01T23:59:59.000Z

145

Lightweight concrete : investigations into the production of natural fiber reinforcement  

E-Print Network [OSTI]

The purpose of this study is to investigate the benefits of adding natural fiber tensile reinforcement to aerated concrete. Concrete is a great composite material which can be created in various proportions and with various ...

Garbis, Leonidia Maria

2013-01-01T23:59:59.000Z

146

Controlling Thermal Properties of Asphalt Concrete and its Multifunctional Applications  

E-Print Network [OSTI]

) 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...

Shi, Xijun

2014-08-10T23:59:59.000Z

147

Material flow analysis of concrete in the United States  

E-Print Network [OSTI]

Concrete is the second most consumed material in the world after water. Due to the sheer mass of concrete consumed annually and its associated resource and environmental impacts, improving the materials management of ...

Low, Man-Shi

2005-01-01T23:59:59.000Z

148

Detection Of Concrete Deterioration By Staining  

DOE Patents [OSTI]

A method using concentrated aqueous solutions of sodium cobaltinitrite and a rhodamine dye is described which can be used to identify concrete that contains gels formed by the alkali-silica reaction (ASR), and to identify degraded concrete which results in a porous or semi-permeable paste due to carbonation or leaching. These solutions present little health or environmental risk, are readily applied, and rapidly discriminate between two chemically distinct gels; K-rich, Na--K--Ca--Si gels are identified by yellow staining, and alkali-poor, Ca--Si gels are identified by pink staining.

Guthrie, Jr., George D. (Santa Fe, NM); Carey, J. William (Santa Fe, NM)

1999-09-21T23:59:59.000Z

149

Possibilities of Sulphur as a Soil Amendment.  

E-Print Network [OSTI]

TEXAS AGRICULTURAL EXPERIMENT STATION A. B. CONNER, DIRECTOR COLLEGE STATION, BRAZOS COUNTY, TEXAS BULLETIN NO. 414 AUGUST, 1930 DIVISION OF CHEMISTRY POSSIBILITIES OF SULPHUR AS A - SOIL AMENDMENT AGRICULTURAL AND MECHANICAL COLLEGE OF TEXAS... . --- Agronomist B. C. LANGLEY,'B. S., Assistant in Soils PUBLICATIONS: A. D. JACKSON, Chief VETERINARY SCIENCE: *M. FRANCIS, D. V. M., Chief. H SCHMIDT D V M Veferznarian E: JUNGHE~R, D. V. M.. Veterinarran W T HARDY D V RI., Veterinnrian F.'E.'CARROL;, D...

Fraps, G. S. (George Stronach)

1930-01-01T23:59:59.000Z

150

Glenwood Springs Amendments | 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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio: Energy Resources Jump to: navigation,Open EnergyAmendments Jump to:

151

Morley Symposium on Concrete Plasticity and its Application. University of Cambridge 23 PLASTICITY APPLICATIONS IN REINFORCED CONCRETE AND  

E-Print Network [OSTI]

a range of reinforced and or prestressed concrete structures consisting of tower crane foundations, wind: plasticity, prestressed concrete, serviceability, turbine foundation, offshore structures 1 INTRODUCTION turbine foundations, building floors and offshore structures. The case studies have been chosen based

Burgoyne, Chris

152

Concrete and Sustainable Development Special Publication ACI 206, 2002  

E-Print Network [OSTI]

friendly construction; fly ash; green buildings; recycling; supplementary cementing materials; sustainableC. Meyer Concrete and Sustainable Development 1 Special Publication ACI 206, 2002 Concrete Hills, MI Concrete and Sustainable Development By C. Meyer Synopsis: The United States is a country

Meyer, Christian

153

The Transfer of Scientific Principles Using Concrete and Idealized  

E-Print Network [OSTI]

The Transfer of Scientific Principles Using Concrete and Idealized Simulations Robert L. Goldstone the first simulation was manipulated. The elements either remained concrete throughout the simulation, remained idealized, or switched midway into the simulation from concrete to idealized or vice versa

Goldstone, Robert

154

Silica dust control when drilling concrete Page 1 of 2  

E-Print Network [OSTI]

Silica dust control when drilling concrete Page 1 of 2 Drilling into concrete releases a fine sandy and routinely drill into concrete are at risk of developing this disease. Controlling the dust Hammer drills are available with attached dust removal systems. These draw dust from the drill end, down the attachment

Knowles, David William

155

BOND PROPERTIES OF CFCC PRESTRESSING STRANDS IN PRETENSIONED CONCRETE BEAMS  

E-Print Network [OSTI]

BOND PROPERTIES OF CFCC PRESTRESSING STRANDS IN PRETENSIONED CONCRETE BEAMS by Nolan G. Domenico plastic prestressing strands (CFCC) in pretensioned concrete beams. The bond characteristics are examined for 15.2 mm diameter and 12.5 mm diameter seven-wire CFCC strands. Ten prestressed concrete beams

156

The Description Logic ALCN HR+ Extended with Concrete Domains  

E-Print Network [OSTI]

The Description Logic ALCN HR+ Extended with Concrete Domains: A Practically Motivated Approach, role hierarchies, transitively closed roles, generalized concept inclusions, and concrete domains. As in other languages based on concrete domains (e.g. ALC(D)) a so-called ex- istential predicate restriction

Moeller, Ralf

157

Building Cathedrals and Breaking down Reinforced Concrete Walls  

E-Print Network [OSTI]

Building Cathedrals and Breaking down Reinforced Concrete Walls Michel Brou´e Institut Henri distinction between great mathematicians Concrete walls breakers Michel Brou´e (Institut Henri Poincar´e) John Concrete walls breakers Cathedrals builders Michel Brou´e (Institut Henri Poincar´e) John Thompson

Broué, Michel - Institut de Mathématiques de Jussieu, Université Paris 7

158

Adapting Optimization Techniques to Description Logics with Concrete Domains  

E-Print Network [OSTI]

Adapting Optimization Techniques to Description Logics with Concrete Domains Anni-Yasmin Turhan backtracking and model merging can be adapted to description logics with concrete domains. We propose al) a new requirement for concrete domains in order to enable dependency directed backtracking for all clash

Haarslev, Volker

159

Guide to Dowel LoadTransfer Systems for Jointed Concrete  

E-Print Network [OSTI]

Guide to Dowel LoadTransfer Systems for Jointed Concrete Roadway Pavements TECH BRIEF SEPTEMBER 2011 #12;#12;GUIDE TO DOWEL LOAD TRANSFER SYSTEMS FOR JOINTED CONCRETE ROADWAY PAVEMENTS i Technical and Subtitle Guide to Dowel Load Transfer Systems for Jointed Concrete Roadway Pavements 5. Report Date

160

Effects of g Radiation on Fiber-Reinforced Polymer Concrete  

E-Print Network [OSTI]

Effects of g Radiation on Fiber-Reinforced Polymer Concrete Gonzalo Marti´nez-Barrera,1,2 Luis F% of nylon fibers. The fiber-containing polymer concretes (PCs) were subjected to 5, 10, 50, and 100 k Engineers INTRODUCTION AND SCOPE It is well known that polymer concrete (PC) is three to five times stronger

North Texas, University of

Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Designing Precast Concrete Cross Wall Joints Against Progressive Collapse  

E-Print Network [OSTI]

Designing Precast Concrete Cross Wall Joints Against Progressive Collapse Researcher: Mohamad concrete cross wall constructions. Ronan Point Collapse (http://en.wikipedia.org/wiki/Ronan_Point) #12;Due gap is listed as follows: · Limited number of studies for designing precast concrete cross wall

Birmingham, University of

162

Concrete Browsing Of A Graphical Toolkit Library Denys Duchier  

E-Print Network [OSTI]

Concrete Browsing Of A Graphical Toolkit Library Denys Duchier Department of Computer Science and promote reuse. This paper introduces Concrete Browsing as an improved method of consult- ing a graphical library, and Spreading Computation as novel paradigm for search and retrieval. A concrete browser allows

Duchier, Denys

163

From Abstract to Concrete Norms in Agent Institutions  

E-Print Network [OSTI]

From Abstract to Concrete Norms in Agent Institutions Davide Grossi and Frank Dignum Utrecht accounts for how (abstract) norms can be incorporated in the (concrete) procedures constituting. This abstract is organized as follows. In Section 2 we make the problem we are focusing on concrete by means

Dignum, Frank

164

Permeable Interlocking Concrete Pavement (PICP) for Stormwater Management  

E-Print Network [OSTI]

Permeable Interlocking Concrete Pavement (PICP) for Stormwater Management Benefits and Uses Traditional Concrete · Long-term Maintenance Required by Routine Vacuum Sweeping · Sweeping Cost May Be Off-set by Possible Reduction in Deicing Costs · Repairs Can be Made in Freezing Temperatures with Reinstated Concrete

165

Concrete Browsing Of A Graphical Toolkit Library Denys Duchier  

E-Print Network [OSTI]

Concrete Browsing Of A Graphical Toolkit Library Denys Duchier Department of Computer Science and promote reuse. This paper introduces Concrete Browsing as an improved method of consult­ ing a graphical library, and Spreading Computation as novel paradigm for search and retrieval. A concrete browser allows

Duchier, Denys

166

CIVE 452 Spring 1998 Design of Reinforced Concrete Structures  

E-Print Network [OSTI]

CIVE 452 Spring 1998 Design of Reinforced Concrete Structures Instructor: M.O. Eberhard Office: 233 of concrete and steel (CIVE 363). The purpose of the course is to provide seniors with an introduction to the behavior and design of reinforced concrete structures. Course Outline Text Reading 1. Introduction Ch. 1, 2

Eberhard, Marc O.

167

Compressive Strength of Gamma-Irradiated Polymer Concrete  

E-Print Network [OSTI]

Compressive Strength of Gamma-Irradiated Polymer Concrete Gonzalo Marti´nez-Barrera,1,2 Uriel concrete (PC) was developed by using differ- ent concentrations of silica sand as aggregate of Plastics Engineers INTRODUCTION Polymer concrete (PC) is a particulate composite where thermoset resins

North Texas, University of

168

COLORADO DEPARTMENT OF TRANSPORTATION Sustainability of Concrete Pavement  

E-Print Network [OSTI]

COLORADO DEPARTMENT OF TRANSPORTATION Sustainability of Concrete Pavement I-225 - Mississippi to 6 · 2 Mile Reconstruction Existing: · 4 Lane Divided Highway · 8" Concrete Pavement (Recycled on-site) · 4" Asphalt Overlay (Recycled off-site) Project Design: · 6 Lane Divided Highway · 13" Concrete

169

Model coupling friction and adhesion for steel-concrete interfaces  

E-Print Network [OSTI]

Model coupling friction and adhesion for steel- concrete interfaces Michel Raous Laboratoire de: In this paper the interface behaviour between steel and concrete, during pull out tests, is numerically a variable friction coefficient in order to simulate the behaviour of the steel-concrete interface during

Boyer, Edmond

170

The Description Logic ALCNHR + Extended with Concrete Domains  

E-Print Network [OSTI]

The Description Logic ALCNHR + Extended with Concrete Domains: A Practically Motivated Approach restrictions, role hierarchies, transitively closed roles, generalized concept inclusions, and concrete domains. As in other languages based on concrete domains (e.g. ALC(D)) a so­called ex­ istential predicate restriction

Haarslev, Volker

171

Adapting Optimization Techniques to Description Logics with Concrete Domains  

E-Print Network [OSTI]

Adapting Optimization Techniques to Description Logics with Concrete Domains Anni­Yasmin Turhan backtracking and model merging can be adapted to description logics with concrete domains. We propose al) a new requirement for concrete domains in order to enable dependency directed backtracking for all clash

Haarslev, Volker

172

NExpTime-complete Description Logics with Concrete Domains  

E-Print Network [OSTI]

NExpTime-complete Description Logics with Concrete Domains Carsten Lutz LuFG Theoretical Computer Science RWTH Aachen, Germany lutz@cs.rwth-aachen.de Abstract. Concrete domains are an extension \\concrete properties" of objects such as sizes, weights, and durations. It is known that reasoning with ALC

Baader, Franz

173

Concrete vs. Abstract Problem Formats: A Disadvantage of Prior Knowledge  

E-Print Network [OSTI]

Concrete vs. Abstract Problem Formats: A Disadvantage of Prior Knowledge Andrew F. Heckler experiments examine the effects of varying the relative concreteness of physics word problems on student performance.Previous studies have found that concrete representations benefit performance for relatively

Heckler, Andrew F.

174

DATA FOR THE CALCULATION OF ALBEDOS FROM CONCRETE  

E-Print Network [OSTI]

DATA FOR THE CALCULATION OF ALBEDOS FROM CONCRETE IRON, LEAD, AND WATER FOR PHOTONS AND NEUTRONS for four materials: concrete, iron, lead, and water. Unlike previous compilations of albedo data, modern obtained by fits to results of Monte Carlo calculations for concrete,3 and later extended to water, iron

Shultis, J. Kenneth

175

Effects of elevated temperatures on mechanical properties of concrete containing  

E-Print Network [OSTI]

Effects of elevated temperatures on mechanical properties of concrete containing haematite and A. Beycioglu5 Concretes containing different proportions of haematite (15, 30, 45 and 60%) were of concretes were determined according to ASTM C39 and ASTM C469. A rule based Mamdani type fuzzy logic model

North Texas, University of

176

A NOVEL MICROWAVE CAMERA FOR NDE OF CONCRETE STRUCTURES  

E-Print Network [OSTI]

A NOVEL MICROWAVE CAMERA FOR NDE OF CONCRETE STRUCTURES By Maria Q. Feng1 , Yoo Jin Kim2 , Franco De Flaviis3 , and Luis Jofre 4 ABSTRACT: Nondestructive assessment of concrete structures heavily and cracks inside concrete caused by aging, deterioration, and seismic loading. The authors have developed

De Flaviis, Franco

177

CONCRETE OPTIMISATION WITH REGARD TO PACKING DENSITY AND RHEOLOGY  

E-Print Network [OSTI]

/organizers): .............. Keywords: packing density, rheology, grading curve, optimisation, self-compacting concrete, roller-compactedCONCRETE OPTIMISATION WITH REGARD TO PACKING DENSITY AND RHEOLOGY François de Larrard LCPC Centre concrete. Author contacts Authors E-Mail Fax Postal address LCPC Centre de Nantes François de Larrard

Paris-Sud XI, Université de

178

NExpTime-complete Description Logics with Concrete Domains  

E-Print Network [OSTI]

that reasoning with the concrete do- main D (i.e., testing the satis#12;ability of #12;nite conjunctionsChapter 1 NExpTime-complete Description Logics with Concrete Domains Carsten Lutz Abstract. Description Logics (DLs) incorporating concrete domains are useful formalisms for integrated reasoning about

Baader, Franz

179

TTUS FP&C Design & Building Standards Division 3 Concrete  

E-Print Network [OSTI]

All concrete products shall be designed, formed, transported, placed, tested, and finished in strict accordance with the American Society for Testing and Materials (ASTM) and the American Concrete Institute, and submit test reports during concrete placement. Page 1 of 4 #12;TTUS FP&C Design & Building

Gelfond, Michael

180

TRNEWS279MARCHAPRIL2012 The authors are Concrete  

E-Print Network [OSTI]

. Most prefer the Standard Test Method for Electrical Indication of Concrete's Ability to Resist Chloride measurements across a wide range of permeability values, sample testing ages, and concrete mix designs (FigureTRNEWS279MARCH­APRIL2012 46 The authors are Concrete Research Engineers, Louisiana Transportation

Harms, Kyle E.

Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

SERVICEABILITY LIMIT STATES OF CONCRETE BEAMS PRESTRESSED BY CFRP BARS  

E-Print Network [OSTI]

reinforcements. The experimental program consisted of testing eight concrete beams prestressed by CFRP bars beams prestressed by Leadline CFRP bars were tested, in addition to two concrete beams prestressedAbstract SERVICEABILITY LIMIT STATES OF CONCRETE BEAMS PRESTRESSED BY CFRP BARS by Amr A

182

Experimental and Analytical Reexamination of Classic Concrete Beam Tests  

E-Print Network [OSTI]

Experimental and Analytical Reexamination of Classic Concrete Beam Tests F. J. Vecchio1 and W. Shim CE Database subject headings: Beams; Concrete; Tests; Ductility; Finite elements; Models; Shear paper describing the testing of a series of 12 reinforced concrete beams Bresler and Scordelis 1963

Vecchio, Frank J.

183

Disk-shaped Compact Tension Test for Asphalt Concrete Fracture  

E-Print Network [OSTI]

Disk-shaped Compact Tension Test for Asphalt Concrete Fracture by M.P.Wagoner, W.G. Buttlar and G geometry is the ability to test cylindrical cores obtained from in-place asphalt concrete pavements finalizing the specimen geometry, a typical asphalt concrete surface mixture was tested at various

Paulino, Glaucio H.

184

air act amendments: Topics by E-print Network  

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

SHARES. (1) This amendment authorizes: (A) an eligible entity holding processor quota shares to elect on an annual basis for the Northern Region; and (B) an eligible entity...

185

air act amendment: Topics by E-print Network  

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

SHARES. (1) This amendment authorizes: (A) an eligible entity holding processor quota shares to elect on an annual basis for the Northern Region; and (B) an eligible entity...

186

amendment regulations northern: Topics by E-print Network  

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

students that a parking space will be available at all times. (6) Annual, or semester, monthly, weekly or daily term Pilyugin, Sergei S. 200 Certificate of Compliance Amendment...

187

Enforcement Guidance Supplement 00-02: Price-Anderson Amendment...  

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

of program implementation lessons-learned Enforcement Guidance Supplement 00-02: Price-Anderson Amendment Act (PAAA) Program Reviews More Documents & Publications...

188

amendments irritate businesses: Topics by E-print Network  

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

Management Studies Business and Management Studies (with a professional placement year) Business with Human Resource Sussex, University of 42 Date Created: 2006 Date Amended...

189

Amended Application for Presidential Permit OE Docket No: PP...  

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

Amended Application of Northern Pass Transmission LLC for Presidential Permit Exhibit 1 - Opinion of Counsel Exhibit 2 - General Area Map of Proposed Route Exhibit 3 - Diagrams of...

190

Amended Application for Presidential Permit OE Docket No. PP...  

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

Northern Transmission Line has submitted an amended application for a Presidential Permit to construct, operate, maintain and connect an electric transmission line across the...

191

Efficacy of soluble sodium tripolyphosphate amendments for the...  

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

of soluble sodium tripolyphosphate amendments for the in-situ immobilisation of uranium."Environmental Chemistry 4:293-300. Authors: DM Wellman EM Pierce MM Valenta...

192

alnus rubra amended: Topics by E-print Network  

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

Amended by F96 in the all-University requirements as presented by Dr. Theodore Norton, Chairman of the Curriculum Committee. (Passed: Meeting of 22673) Copies sent to...

193

EIS-0431: Amended Notice of Intent to Prepare an Environmental...  

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

Involvement Hydrogen Energy California's Integrated Gasification Combined Cycle and Carbon Capture and Sequestration Project, Kern County, CA DOE is publishing this Amended...

194

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

E-Print Network [OSTI]

of three blocks with two mortar joints and both cells fully16 in. concrete blocks with two mortar joints (Figure 6.21).between the mortar joints and the block were equal to 200

Oesterle, Michael G.

2009-01-01T23:59:59.000Z

195

Evaluation of mechanical properties of high strength concrete for prestressed concrete bridge design  

E-Print Network [OSTI]

follows that used by the American Concrete Institute (ACI) Committee 363 (1997) as concrete having compressive strength greater than 6000 psi (41. 4 MPa) produced without using exotic materials or techniques. HSC with compressive strengths above 6000... psi (41. 4 MPa) is commonly available today and is used extensively in prestressed bridge girders. However, the current design codes such as the American Association of State Highway and Transportation Officials (AASHTO) Standard Specifications...

Chompreda, Praveen

2001-01-01T23:59:59.000Z

196

INTRODUCTION Portland cement concrete (PCC) is the world's most versatile and utilized construction material. Modern concrete consists of six  

E-Print Network [OSTI]

INTRODUCTION Portland cement concrete (PCC) is the world's most versatile and utilized construction material. Modern concrete consists of six main ingredients: coarse aggregate, sand, portland cement agreement that the use of SCMs has the following effects in concrete: 1. Improved workability and finish

Harms, Kyle E.

197

Morley Symposium on Concrete Plasticity and its Application. University of Cambridge 23 THE PLASTICITY OF UNREINFORCED CONCRETE  

E-Print Network [OSTI]

Morley Symposium on Concrete Plasticity and its Application. University of Cambridge 23 rd July, 2007 THE PLASTICITY OF UNREINFORCED CONCRETE Jacques HEYMAN Department of Engineering, University of Cambridge, UK Keywords: Mass concrete, plasticity 1 THE MATERIAL If a material is to be structurally useful

Burgoyne, Chris

198

E-Print Network 3.0 - amending council directive Sample Search...  

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

species because it assumes the unharvested QS... interactions between Amendment 80 cooperatives. The commenter may approach the Council in the future... in the Amendment 80...

199

Concrete decontamination by Electro-Hydraulic Scabbling (EHS)  

SciTech Connect (OSTI)

EHS is being developed for decontaminating concrete structures from radionuclides, organic substances, and hazardous metals. EHS involves the generation of powerful shock waves and intense cavitation by a strong pulsed electric discharge in a water layer at the concrete surface; high impulse pressure results in stresses which crack and peel off a concrete layer of controllable thickness. Scabbling produces contaminated debris of relatively small volume which can be easily removed, leaving clean bulk concrete. Objective of Phase I was to prove the technical feasibility of EH for controlled scabbling and decontamination of concrete. Phase I is complete.

NONE

1994-11-01T23:59:59.000Z

200

Surface treated polypropylene (PP) fibres for reinforced concrete  

SciTech Connect (OSTI)

Surface treatments on a polypropylene (PP) fibre have contributed to the improvement of fibre/concrete adhesion in fibre-reinforced concrete. The treatments to the PP fibre were characterized by contact angle measurements, ATR-IR and XPS to analyse chemical alterations. The surface topography and fibre/concrete interaction were analysed by several microscopic techniques, namely optical petrographic, and scanning electron microscopy. Treatment modified the surface chemistry and topography of the fibre by introducing sodium moieties and created additional fibre surface roughness. Modifications in the fibre surface led to an increase in the adhesion properties between the treated fibres and concrete and an improvement in the mechanical properties of the fibre-reinforced concrete composite as compared to the concrete containing untreated PP fibres. Compatibility with the concrete and increased roughness and mineral surface was also improved by nucleated portlandite and ettringite mineral association anchored on the alkaline PP fibre surface, which is induced during treatment.

Lpez-Buenda, Angel M., E-mail: buendia@uv.es [AIDICO Technological Institute of Construction, Benjamin Franklin 17, 46380 Paterna, Valencia (Spain); Romero-Snchez, Mara Dolores [AIDICO Technological Institute of Construction, Marble Technical Unit, Cam de Castella 4, 03660 Novelda. Alicante (Spain)] [AIDICO Technological Institute of Construction, Marble Technical Unit, Cam de Castella 4, 03660 Novelda. Alicante (Spain); Climent, Vernica [Lafarge Cementos, Polgono Sepes, Isaac Newton s/n, 46500 Sagunto, Valencia (Spain)] [Lafarge Cementos, Polgono Sepes, Isaac Newton s/n, 46500 Sagunto, Valencia (Spain); Guillem, Celia [AIDICO Technological Institute of Construction, Marble Technical Unit, Cam de Castella 4, 03660 Novelda. Alicante (Spain)] [AIDICO Technological Institute of Construction, Marble Technical Unit, Cam de Castella 4, 03660 Novelda. Alicante (Spain)

2013-12-15T23:59:59.000Z

Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Recycling of PET bottles as fine aggregate in concrete  

SciTech Connect (OSTI)

An attempt to substitute in concrete the 5% by weight of fine aggregate (natural sand) with an equal weight of PET aggregates manufactured from the waste un-washed PET bottles (WPET), is presented. The WPET particles possessed a granulometry similar to that of the substituted sand. Specimens with different cement content and water/cement ratio were manufactured. Rheological characterization on fresh concrete and mechanical tests at the ages of 28 and 365 days were performed on the WPET/concretes as well as on reference concretes containing only natural fine aggregate in order to investigate the influence of the substitution of WPET to the fine aggregate in concrete. It was found that the WPET concretes display similar workability characteristics, compressive strength and splitting tensile strength slightly lower that the reference concrete and a moderately higher ductility.

Frigione, Mariaenrica, E-mail: mariaenrica.frigione@unisalento.i [Department of Engineering for Innovation, University of Salento, Via per Monteroni, 73100 Lecce (Italy)

2010-06-15T23:59:59.000Z

202

An Alternative Mechanism for Accelerated Carbon Sequestration in Concrete  

SciTech Connect (OSTI)

The increased rate of carbon dioxide sequestration (carbonation) is desired in many primary and secondary life applications of concrete in order to make the life cycle of concrete structures more carbon neutral. Most carbonation rate studies have focused on concrete exposed to air under various conditions. An alternative mechanism for accelerated carbon sequestration in concrete was investigated in this research based on the pH change of waters in contact with pervious concrete which have been submerged in carbonate laden waters. The results indicate that the concrete exposed to high levels of carbonate species in water may carbonate faster than when exposed to ambient air, and that the rate is higher with higher concentrations. Validation of increased carbon dioxide sequestration was also performed via thermogravimetric analysis (TGA). It is theorized that the proposed alternative mechanism reduces a limiting rate effect of carbon dioxide dissolution in water in the micro pores of the concrete.

Haselbach, Liv M.; Thomle, Jonathan N.

2014-07-01T23:59:59.000Z

203

Corrosion of steel reinforcement in concrete. Corrosion of mild steel bars in concrete and its effect on steel-concrete bond strength.  

E-Print Network [OSTI]

??This thesis reports on the research outcome of corrosion mechanism and corrosion rate of mild steel in different environments (saline, alkaline solutions and concrete media) (more)

Abosrra, L. R.

2010-01-01T23:59:59.000Z

204

NOTICE OF PROPOSED REGULATION AMENDMENT Date: November 8, 2011  

E-Print Network [OSTI]

PROPOSED REGULATION AMENDMENT: Dr. James Fenton, Director, Florida Solar Energy Center COMMENTS CONCERNING.: Solar Thermal and Photovoltaic System Standards UCF-8.010 and Certification SUMMARY OF REGULATION-mail: regulations@mail.ucf.edu FULL TEXT OF THE PROPOSED REGULATION AMENDMENT: UCF-8.010 Solar Thermal

Richardson, Martin C.

205

NOTICE OF PROPOSED REGULATION AMENDMENT Date: November 8, 2011  

E-Print Network [OSTI]

REGULATION AMENDMENT: Dr. James Fenton, Director, Florida Solar Energy Center COMMENTS CONCERNING.: Solar Thermal PV Equipment Testing Standards UCF-8.007 SUMMARY OF REGULATION: This regulation-mail: regulations@mail.ucf.edu FULL TEXT OF THE PROPOSED REGULATION AMENDMENT: UCF-8.007 Solar Thermal PV Equipment

Richardson, Martin C.

206

NOTICE OF PROPOSED REGULATION AMENDMENT Date: November 8, 2011  

E-Print Network [OSTI]

.: Florida Solar Energy Center Operations UCF-8.006 SUMMARY OF REGULATION: This regulation is an updated-mail: regulations@mail.ucf.edu FULL TEXT OF THE PROPOSED REGULATION AMENDMENT: UCF-8.006 Florida Solar Energy Center AMENDMENT: Dr. James Fenton, Director, Florida Solar Energy Center COMMENTS CONCERNING THE PROPOSED

Richardson, Martin C.

207

NOTICE OF PROPOSED REGULATION AMENDMENT Date: November 8, 2011  

E-Print Network [OSTI]

REGULATION AMENDMENT: Dr. James Fenton, Director, Florida Solar Energy Center COMMENTS CONCERNING.: Solar Thermal Collector and PV Module Certification UCF-8.008 SUMMARY OF REGULATION: This regulation-mail: regulations@mail.ucf.edu FULL TEXT OF THE PROPOSED REGULATION AMENDMENT: UCF-8.008 Solar Thermal Collector

Richardson, Martin C.

208

NOTICE OF PROPOSED REGULATION AMENDMENT Date: April 15, 2009  

E-Print Network [OSTI]

, Florida Solar Energy Center COMMENTS CONCERNING THE PROPOSED REGULATION AMENDMENT SHOULD BE SUBMITTED.: Solar Thermal and Photovoltaic System Standards UCF-8.005 and Certification SUMMARY OF REGULATION OF THE PROPOSED REGULATION AMENDMENT: UCF6C7-8.005 Solar Thermal and Photovoltaic System Standards

Wu, Shin-Tson

209

NOTICE OF PROPOSED REGULATION AMENDMENT Date: August 18, 2005  

E-Print Network [OSTI]

, Deputy Director of Florida Solar Energy Center COMMENTS CONCERNING THE PROPOSED REGULATION AMENDMENT in the solar hearing industry and to refer to updated standards prepared by the Florida Solar Energy Center TEXT OF THE PROPOSED REGULATION AMENDMENT: 6C7-8.005 SolarThermal and Photovoltaic Domestic Water

Wu, Shin-Tson

210

Direct Speciation of Phosphorus in Alum-Amended Poultry Litter  

E-Print Network [OSTI]

Direct Speciation of Phosphorus in Alum-Amended Poultry Litter: Solid-State 31 P NMR Investigation, and Department of Plant and Soil Sciences, University of Delaware, Newark, Delaware 19717 Amending poultry litter prerequisite for the assessment of the sustainability of intensive poultry operations. Both solid- state MAS

Sparks, Donald L.

211

TSNo s02-staats173645-P Alum Amendment Effects on Soil Phosphorus Stabilization in Poultry Litter Amended Sandy Soils.  

E-Print Network [OSTI]

TSNo s02-staats173645-P Title Alum Amendment Effects on Soil Phosphorus Stabilization in Poultry Litter Amended Sandy Soils. abstract Increased poultry production has contributed to excess nutrient (i.e., phosphorus (P)) problems in Atlantic Coastal Plain soils due to land application of poultry litter and manure

Sparks, Donald L.

212

Use of POTW biosolids in bituminous concrete  

SciTech Connect (OSTI)

Although wastewater treatment helps alleviate water pollution, it creates residual by-products that can pose a disposal dilemma. Four main practices are presently employed to dispose of wastewater treatment plant sludge: land application, composting, incineration, and landfilling. A fifth disposal method that may help to alleviate the sludge disposal problem in future years is the incorporation of sludge into useful end products such as fertilizer or construction materials. This research was designed to evaluate the properties of bituminous concrete mixes that had anaerobically digested sewage sludge incorporated into their design. In doing so, it was desired to verify the work of Wells concerning sludge incorporation into bituminous concrete mixes using today`s asphalts. Hot mix and cold mix designs were studied.

Smith, R.C. [Jones and Henry Engineers, Ltd., Toledo, OH (United States); Angelbeck, D.I. [Univ. of Toledo, OH (United States)

1995-11-01T23:59:59.000Z

213

Wearability of Portland Cement Concrete Pavement Finishes  

E-Print Network [OSTI]

Major Subject: Civil Engineering NEARABILITY OF PORTLAND CENENT CONCRETE PAPFNENT FIVISNFS A Thesis by Nilliam Rem NcKeen Approved as to style and content by: (Chairman of Committ e) (Nember) August 1971 ABSTRACT Hearabil'tv of Portland Cement... portland cement, and an air entrainment admixture. Standard laboratory tests were performed on all aggregates to determine their properties. iv The test specimens were molded in a controlled environmental room and the anpropriate surface finish (burlap...

McKeen, William Rew

1971-01-01T23:59:59.000Z

214

Radionuclide Retention in Concrete Waste Forms  

SciTech Connect (OSTI)

Assessing long-term performance of Category 3 waste cement grouts for radionuclide encasement requires knowledge of the radionuclide-cement interactions and mechanisms of retention (i.e., sorption or precipitation); the mechanism of contaminant release; the significance of contaminant release pathways; how waste form performance is affected by the full range of environmental conditions within the disposal facility; the process of waste form aging under conditions that are representative of processes occurring in response to changing environmental conditions within the disposal facility; the effect of waste form aging on chemical, physical, and radiological properties; and the associated impact on contaminant release. This knowledge will enable accurate prediction of radionuclide fate when the waste forms come in contact with groundwater. The information presented in the report provides data that 1) quantify radionuclide retention within concrete waste form materials similar to those used to encapsulate waste in the Low-Level Waste Burial Grounds (LLBG); 2) measure the effect of concrete waste form properties likely to influence radionuclide migration; and 3) quantify the stability of uranium-bearing solid phases of limited solubility in concrete.

Mattigod, Shas V.; Bovaird, Chase C.; Wellman, Dawn M.; Wood, Marcus I.

2010-09-30T23:59:59.000Z

215

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE  

E-Print Network [OSTI]

. is not extended. Offers must acknowledge receipt of this amendment prior to the hour and date specified copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer and amendment numbers. FAILURE OF YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT

216

Analytical and Experimental Assessment of Seismic Vulnerability of Beam-Column Joints without Transverse Reinforcement in Concrete Buildings  

E-Print Network [OSTI]

Deformations in Reinforced Concrete BeamColumn Joints?,P. , ?Update to ASCE/SEI 41 Concrete Provisions?, EarthquakeEffective Stiffness of Reinforced Concrete Columns?, Pacific

Hassan, Wael M.

2011-01-01T23:59:59.000Z

217

Coupled Damage and Plasticity Modelling in Transient Dynamic Analysis of Concrete  

E-Print Network [OSTI]

Coupled Damage and Plasticity Modelling in Transient Dynamic Analysis of Concrete F. Gatuingt Abstract In a concrete structure subjected to an explosion, for example a concrete slab, the material on the same concrete. Computations of split Hopkinson tests on confined concrete, a tensile test with scabbing

218

University of North Carolina at Charlotte Design and Construction Manual Section 2, Division 03 Concrete  

E-Print Network [OSTI]

. American Concrete Institute (ACI) B. American Society for Testing and Materials (ASTM) C. Portland Cement ­ Concrete SECTION 2 DIVISION 03 CONCRETE #12;University of North Carolina at Charlotte Design and Construction Manual Section 2, Division 03 ­ Concrete DIVISION 3 - CONCRETE Note: This is a guide for Designers

Xie,Jiang (Linda)

219

Concrete decontamination by Electro-Hydraulic Scabbling (EHS). Topical report  

SciTech Connect (OSTI)

Electro-Hydraulic Scabbling (EHS) technology and equipment for decontaminating concrete structures from radionuclides, organic substances, and hazardous metals is being developed by Textron Systems Division (TSD). This wet scabbling technique involves the generation of powerful shock waves and intense cavitation by a strong pulsed electric discharge in a water layer at the concrete surface. The high pressure impulse results in stresses which crack and peel off a concrete layer of a controllable thickness. Scabbling produces contaminated debris of relatively small volume which can be easily removed, leaving clean bulk concrete. This new technology is being developed under Contract No. DE-AC21-93MC30164. The project objective is to develop and demonstrate a cost-efficient, rapid, controllable process to remove the surface layer of contaminated concrete while generating minimal secondary waste. The primary target of this program is uranium-contaminated concrete floors which constitute a substantial part of the contaminated area at DOE weapon facilities.

NONE

1996-03-30T23:59:59.000Z

220

Finite Element Modeling of the Fastening Systems and the Concrete  

E-Print Network [OSTI]

Sleeper and Ballast 0 500 1000 1500 2000 2500 3000 3500 4000 0.0000 0.0002 0.0004 0.0006 0.0008 0 of strands Rail seat area is between 0.39 m to 0.67 m Rail Seat Area Component Modeling: Concrete Sleeper Seat Area Position of concrete surface strain lt = 0.48 m Component Modeling: Concrete Sleeper

Barkan, Christopher P.L.

Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Dynamic Impact Analyses and Tests of Concrete Overpacks - 13638  

SciTech Connect (OSTI)

Concrete cask is an option for spent nuclear fuel interim storage which is prevailingly used in US. A concrete cask usually consists of metallic canister which confines the spent nuclear fuel and concrete overpack. When the overpack undergoes a severe missile impact which might be caused by a tornado or an aircraft crash, it should sustain acceptable level of structural integrity so that its radiation shielding capability and the retrievability of canister are maintained. Missile impact against a concrete overpack involves two damage modes, local damage and global damage. Local damage of concrete is usually evaluated by empirical formulas while the global damage is evaluated by finite element analysis. In many cases, those two damage modes are evaluated separately. In this research, a series of numerical simulations are performed using finite element analysis to evaluate the global damage of concrete overpack as well as its local damage under high speed missile impact. We consider two types of concrete overpack, one with steel in-cased concrete without reinforcement and the other with partially-confined reinforced concrete. The numerical simulation results are compared with test results and it is shown that appropriate modeling of material failure is crucial in this analysis and the results are highly dependent on the choice of failure parameters. (authors)

Lee, Sanghoon; Cho, Sang-Soon; Kim, Ki-Young; Jeon, Je-Eon; Seo, Ki-Seog [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)] [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

2013-07-01T23:59:59.000Z

222

An investigation of tendon sheathing filler migration into concrete  

SciTech Connect (OSTI)

During some of the inspections at nuclear power plants with prestressed concrete containments, it was observed that the containments has experienced leakage of the tendon sheathing filler (i.e., streaks). The objective of this activity was to provide an indication of the extent of tendon sheathing filler leakage into the concrete and its affects on concrete properties. Literature was reviewed and concrete core samples were obtained from the Trojan Nuclear Plant and tested. The literature primarily addressed effects of crude or lubricating oils that are known to cause concrete damage. However, these materials have significantly different characteristics relative to the materials used as tendon sheathing fillers. Examination and testing of the concrete cores indicated that the appearance of tendon sheathing filler on the concrete surface was due to leakage from the conduits and its subsequent migration through cracks that were present. Migration of the tendon sheathing filler was confined to the cracks and there was no perceptible movement into the concrete. Results of compressive strength testing indicated that the concrete quality was consistent in the containment and that the strength had increased over 40% in 25.4 years relative to the average compressive strength at 28-days age.

Naus, D.J.; Oland, C.B. [Oak Ridge National Lab., TN (United States)

1998-03-01T23:59:59.000Z

223

UNIT NUMBER SWMU 175 UNIT NAME: Concrete Rubble Pile (28...  

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

75 UNIT NAME: Concrete Rubble Pile (28) REGULATORY STATUS: AOC LOCATION: Outside Security Fence, East of C-360 Building in KPDES Outfall Ditch 002. APPROXIMATE DIMENSIONS: 400 ft...

224

NDE of Concrete Structures Strengthened with FRP Using Infrared Thermography  

E-Print Network [OSTI]

NDE of Concrete Structures Strengthened with FRP Using Infrared Thermography Monica A. STARNES that infrared thermography is a promising nondestructive evaluation (NDE) method considering testing speed

Entekhabi, Dara

225

Microsoft Word - EMDA_Volume_4_-_Concrete_Final.docx  

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

room (or building) Diesel generator building Piping or electrical cable ducts or tunnels Radioactive waste storage building Stacks Intake structures (including concrete water...

226

Optimization of Flexural capacity Of Reinforced fibrous concrete ...  

E-Print Network [OSTI]

Dec 22, 2005 ... Optimization of Flexural capacity Of Reinforced fibrous concrete Beams Using Genetic Algorithm. D Suji (suji_mohan2002 ***at*** yahoo.com)

D Suji

2005-12-22T23:59:59.000Z

227

On Concrete Universals: A Modern Treatment using Category Theory  

E-Print Network [OSTI]

Today it would be considered "bad Platonic metaphysics" to think that among all the concrete instances of a property there could be a universal instance so that all instances had the property by virtue of participating in that concrete universal. Yet there is a mathematical theory, category theory, dating from the mid-20th century that shows how to precisely model concrete universals within the "Platonic Heaven" of mathematics. This paper, written for the philosophical logician, develops this category-theoretic treatment of concrete universals along with a new concept to abstractly model the functions of a brain.

David Ellerman

2014-05-09T23:59:59.000Z

228

Optimization of Flexural capacity of Reinforced fibrous Concrete ...  

E-Print Network [OSTI]

Optimizing the flexural capacity of steel fiber reinforced concrete beams, with random ... standard test procedures to be adopted for testing and evaluation of the...

step1

2005-05-24T23:59:59.000Z

229

A STUDY OF THE EFFECTS OF POST-COMBUSTION AMMONIA INJECTION ON FLY ASH QUALITY: CHARACTERIZATION OF AMMONIA RELEASE FROM CONCRETE AND MORTARS CONTAINING FLY ASH AS A POZZOLANIC ADMIXTURE  

SciTech Connect (OSTI)

The Clean Air Act Amendments of 1990 require large reductions in emissions of NO{sub x} from coal-fired electric utility boilers. This will necessitate the use of ammonia injection, such as in selective catalytic reduction (SCR), in many power plants, resulting in the deposition of ammonia on the fly ash. The presence of ammonia could create a major barrier to fly ash utilization in concrete because of odor concerns. Although there have been limited studies of ammonia emission from concrete, little is known about the quantity of ammonia emitted during mixing and curing, and the kinetics of ammonia release. This is manifested as widely varying opinions within the concrete and ash marketing industry regarding the maximum acceptable levels of ammonia in fly ash. Therefore, practical guidelines for using ammoniated fly ash are needed in advance of the installation of many more SCR systems. The goal of this project was to develop practical guidelines for the handling and utilization of ammoniated fly ash in concrete, in order to prevent a decrease in the use of fly ash for this application. The objective was to determine the amount of ammonia that is released, over the short- and long-term, from concrete that contains ammoniated fly ash. The technical approach in this project was to measure the release of ammonia from mortar and concrete during mixing, placement, and curing. Work initially focused on laboratory mortar experiments to develop fundamental data on ammonia diffusion characteristics. Larger-scale laboratory experiments were then conducted to study the emission of ammonia from concrete containing ammoniated fly ash. The final phase comprised monitoring ammonia emissions from large concrete slabs. The data indicated that, on average, 15% of the initial ammonia was lost from concrete during 40 minutes of mixing, depending on the mix proportions and batch size. Long-term experiments indicated that ammonia diffusion from concrete was relatively slow, with greater than 50% of the initial ammonia content remaining in an 11cm thick concrete slab after 1 month. When placing concrete in an enclosed space, with negligible ventilation, it is recommended that the ammonia concentration in the concrete mix water should not exceed 110 mg NH{sub 3}/L, if the NIOSH exposure limit of 25 ppm in the air is not to be exceeded. If even a modicum of ventilation is present, then the ammonia concentration in the concrete water should be less than 170 mg/L. The maximum level of ammonia in the fly ash can then be calculated using these limits if the concrete mix proportions are known. In general, during the mixing and placement of ammonia-laden concrete, no safety concerns were encountered. The only location where the ammonia concentration attained high levels (i.e. > 25 ppm in the air) was within the concrete mixing drum.

Robert F. Rathbone; Thomas L. Robl

2002-10-30T23:59:59.000Z

230

Modeling and Simulation of Electromutagenic Processes for Multiscale Modification of Concrete Jinko Kanno1  

E-Print Network [OSTI]

Modeling and Simulation of Electromutagenic Processes for Multiscale Modification of Concrete Jinko Engineering Program, Louisiana Tech University ABSTRACT Concrete contains numerous pores that allow of concrete with solid materials or nanoparticles tends to improve the strength significantly. In this paper

Kanno,Jinko

231

Transportation Research Board AFN 10: Basic Research and Emerging Technologies in Concrete  

E-Print Network [OSTI]

Transportation Research Board AFN 10: Basic Research and Emerging Technologies in Concrete I will identify potential problems related to concrete materials, and develop research needs statement within STATEMENT AND BACKGROUND The chloride induced corrosion of steel reinforcement embedded in concrete

232

Experimental and Theoretical Studies on Mechanical Properties of Complex Oxides in Concrete  

E-Print Network [OSTI]

0 to 100% slag, Cement and Concrete Research, 40 (2010) 971-ray microscopy, Cement and Concrete Research, 35 (2005) 351-ray microscopy, Cement and Concrete Research, 28 (1998) 411-

Moon, Juhyuk

2013-01-01T23:59:59.000Z

233

CONCRETE STRUCTURE DESIGN USING MIXED-INTEGER NONLINEAR PROGRAMMING WITH COMPLEMENTARITY  

E-Print Network [OSTI]

CONCRETE STRUCTURE DESIGN USING MIXED-INTEGER NONLINEAR PROGRAMMING WITH COMPLEMENTARITY programming (MINLP) formulation to achieve mini- mum-cost designs for reinforced concrete (RC) structures for concrete, steel reinforcing bars, and formwork according to typical contractor methods. Restrictions

234

A TIME-DEPENDENT METHOD FOR CHARACTERIZING THE DIFFUSION OF RADON-222 IN CONCRETE  

E-Print Network [OSTI]

Coefficient of Radon in Concrete", Health Phys. 30, 263. Didiffusion of radon through concrete. The source loop exposesa 2.5-cm sample taken from a different type of concrete.

Zapalac, Geordie H.

2013-01-01T23:59:59.000Z

235

Development of load and resistance factor design for FRP strengthening of reinforced concrete structures  

E-Print Network [OSTI]

Design for FRP Strengthening of Reinforced Concrete. In 7 thFRP) Reinforcement for Concrete Structure; Shield, C.K. ,G.C. Fatigue Performance of Concrete Beams Strengthened with

Atadero, Rebecca Anne

2006-01-01T23:59:59.000Z

236

InstantaneousIn-SituDetermination of Water-CementRatio of Fresh Concrete  

E-Print Network [OSTI]

method for cement content determination of fresh concrete.Cement and Concrete Research, 1980. 10(1): p. 23-34. Hime,the cement content of plastic concrete. ASTM Bulletin, 1955.

Mancio, Mauricio; Moore, Jeffrey R.; Brooks, Zenzile; Monteiro, Paulo J. M.; Glaser, Steve D.

2010-01-01T23:59:59.000Z

237

Sensitivity Analysis of 2002 Design Guide Distress Prediction Models for Jointed Plain Concrete Pavement  

E-Print Network [OSTI]

for Jointed Plain Concrete Pavement Venkata Kannekanti andfeatures, portland cement concrete (PCC) strength, andj o i n t e d p l a i n concrete pavement (JPCP) module o f

Kannekanti, Venkata N.; Harvey, John T

2007-01-01T23:59:59.000Z

238

Experimental and Analytical Studies on Old Reinforced Concrete Buildings with Seismically Vulnerable Beam-Column Joints  

E-Print Network [OSTI]

concrete thickness of the beam cross- sections were measured after testingconducted at the testing day. Table B.3 Concrete cylindertesting (d) EW beam (c) NS beam Figure V.52 Failure of SP4 after removing concrete

PARK, SANGJOON

2010-01-01T23:59:59.000Z

239

Analytical and experimental study of seismic performance of reinforced concrete frames infilled with masonry walls  

E-Print Network [OSTI]

of concrete and implications for choice of testingTable Testing of Gravity Load Designed Reinforced ConcreteConcrete Institute ASCE American Society of Civil Engineers ASTM American Society for Testing

Stavridis, Andreas

2009-01-01T23:59:59.000Z

240

Analytical Modeling of Cyclic Shear - Flexure Interaction in Reinforced Concrete Structural Walls  

E-Print Network [OSTI]

Strength of Concrete at the Day of Testing (Tran,Strength of Concrete at the Day of Testing (Tran, 2012) No.concrete compressive strengths at the time of testing ranged

Kolozvari, Kristijan

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Seismic Performance of Reinforced Concrete Bridges Allowed to Uplift During Multi-Directional Excitation  

E-Print Network [OSTI]

were cast for testing concrete compressive strength at 7strength of column concrete on testing day was about 4.7Concrete Cylinders.. 39 Table 3.4: Testing

Espinoza, Andres Oscar

2011-01-01T23:59:59.000Z

242

Construction and Preliminary HVS Tests of Pre-Cast Concrete Pavement Slabs  

E-Print Network [OSTI]

Cast Concrete Pavement Slabs with HVS Testing. TechnicalCast Concrete Pavement Slabs with HVS Testing Signatures: E.subgrade. FWD testing on the centers of the concrete slabs

Kohler, Erwin R.; du Plessis, Louw; Theyse, Hechter

2008-01-01T23:59:59.000Z

243

Earth pressures on reinforced concrete box culverts  

E-Print Network [OSTI]

. 28 day Compressive Strength in psi 3000 4150 Max. Water/Cement Ratio in gallons/sack Slump Range in inches 7. 0 3-4 5. 4 - 5. 7 3. 5 - 5. 5 Note: 1 yd = 0. 765 m , 1 psi = 6. 89 kpa, 1 in. = 2. 54 cm. , 3 3 1 sack of cement = 94 lb, 1 lb...-structure interface. It also provides the highest degree of 6000 5000 '"4000 ~ 3000 C. I2000 0 0 7 14 21 28 35 Time (days) FIG. 3 - Measured Concrete Compressive Strength (1 psi 6. 89 kpa) 42 PLAN 14 ~ ~ 11 15 ~ ~ 12 & 16 + ~ 13 ~ 8 ~ 9 ~ 10 5 ~ 3...

Brown, Dale Evan

1986-01-01T23:59:59.000Z

244

Biochar amendment and greenhouse gas emissions from agricultural soils  

E-Print Network [OSTI]

The aim of this study was to investigate the effects of biochar amendment on soil greenhouse gas (GHG) emissions and to elucidate the mechanisms behind these effects. I investigated the suppression of soil carbon dioxide ...

Case, Sean Daniel Charles

2013-11-28T23:59:59.000Z

245

FLORIDA ATLANTIC UNIVERSITY NOTICE OF PROPOSED REGULATION AMENDMENT  

E-Print Network [OSTI]

in 1981, and last revised in 1987. It requires updating to reflect the policies and procedures currently AMENDMENT IS: Myrlande Dessalines, Paralegal, Office of the General Counsel, 777 Glades Road, Boca Raton

Richman, Fred

246

FLORIDA ATLANTIC UNIVERSITY NOTICE OF PROPOSED REGULATION AMENDMENT  

E-Print Network [OSTI]

.003 was originally drafted in 1979, and last revised in 1987. It sets forth some, but not all, employee files AMENDMENT IS: Myrlande Dessalines, Paralegal, Office of the General Counsel, 777 Glades Road, Boca Raton

Richman, Fred

247

FLORIDA ATLANTIC UNIVERSITY NOTICE OF PROPOSED REGULATION AMENDMENTS  

E-Print Network [OSTI]

and distribution of financial aid to students. It was last amended November 11, 1987. This proposal updates: Myrlande Dessalines, Paralegal, Office of the General Counsel, 777 Glades Road, Boca Raton, Florida, 33431

Richman, Fred

248

DOE Notice of Proposed Rulemaking to Amend the External Power...  

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

12192014, Apple Inc. met with DOE to discuss the Notice of Proposed Rulemaking to Amend the External Power Supply Test Procedure. EPS TP Ex Parte MemoApple12-19-14 More...

249

Microsoft Word - Alcoa_short-term_amendments_CX.docx  

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

the same level of service under an existing power sales contract to the Intalco smelter in Ferndale, WA. These amendments would further extend this service for up to an...

250

SECTION 340 WRDA 1992, AS AMENDED ENVIRONMENTAL INFRASTRUCTURE  

E-Print Network [OSTI]

SECTION 340 ­ WRDA 1992, AS AMENDED ENVIRONMENTAL INFRASTRUCTURE SOUTHERN WEST VIRGINIA MODEL for the provision of environmental assistance to non-Federal interests in southern West Virginia pursuant to Section

US Army Corps of Engineers

251

SECTION 340 WRDA 1992, AS AMENDED ENVIRONMENTAL INFRASTRUCTURE  

E-Print Network [OSTI]

SECTION 340 ­ WRDA 1992, AS AMENDED ENVIRONMENTAL INFRASTRUCTURE SOUTHERN WEST VIRGINIA MODEL of environmental assistance to non-Federal interests in southern West Virginia pursuant to Section 340 of the Water

US Army Corps of Engineers

252

SECTION 340 WRDA 1992, AS AMENDED SOUTHERN WEST VIRGINIA  

E-Print Network [OSTI]

SECTION 340 ­ WRDA 1992, AS AMENDED SOUTHERN WEST VIRGINIA MODEL AGREEMENT FOR DESIGN ASSISTANCE-Federal interests in southern West Virginia pursuant to Section 340 of the Water Resources Development Act of 1992

US Army Corps of Engineers

253

SECTION 571 WRDA 1999, AS AMENDED CENTRAL WEST VIRGINIA  

E-Print Network [OSTI]

SECTION 571 ­ WRDA 1999, AS AMENDED CENTRAL WEST VIRGINIA MODEL AGREEMENT FOR CONSTRUCTION West Virginia pursuant to Section 571 of the Water Resources Development Act of 1999, Public Law 106

US Army Corps of Engineers

254

SECTION 340 WRDA 1992, AS AMENDED SOUTHERN WEST VIRGINIA  

E-Print Network [OSTI]

SECTION 340 ­ WRDA 1992, AS AMENDED SOUTHERN WEST VIRGINIA MODEL AGREEMENT FOR CONSTRUCTION West Virginia pursuant to Section 340 of the Water Resources Development Act of 1992, Public Law 102

US Army Corps of Engineers

255

SECTION 340 WRDA 1992, AS AMENDED SOUTHERN WEST VIRGINIA  

E-Print Network [OSTI]

SECTION 340 ­ WRDA 1992, AS AMENDED SOUTHERN WEST VIRGINIA MODEL AGREEMENT FOR DESIGN ASSISTANCE for providing environmental assistance to non-Federal interests in southern West Virginia pursuant to Section

US Army Corps of Engineers

256

SECTION 571 WRDA 1999, AS AMENDED CENTRAL WEST VIRGINIA  

E-Print Network [OSTI]

SECTION 571 ­ WRDA 1999, AS AMENDED CENTRAL WEST VIRGINIA MODEL AGREEMENT FOR DESIGN to be developed for providing environmental assistance to non-Federal interests in central West Virginia pursuant

US Army Corps of Engineers

257

SECTION 340 WRDA 1992, AS AMENDED SOUTHERN WEST VIRGINIA  

E-Print Network [OSTI]

SECTION 340 ­ WRDA 1992, AS AMENDED SOUTHERN WEST VIRGINIA MODEL AGREEMENT FOR DESIGN-Federal interests in southern West Virginia pursuant to Section 340 of the Water Resources Development Act of 1992

US Army Corps of Engineers

258

SECTION 571 WRDA 1999, AS AMENDED CENTRAL WEST VIRGINIA  

E-Print Network [OSTI]

SECTION 571 ­ WRDA 1999, AS AMENDED CENTRAL WEST VIRGINIA MODEL AGREEMENT FOR DESIGN ASSISTANCE assistance to non-Federal interests in central West Virginia pursuant to Section 571 of the Water Resources

US Army Corps of Engineers

259

SECTION 571 WRDA 1999, AS AMENDED CENTRAL WEST VIRGINIA  

E-Print Network [OSTI]

SECTION 571 ­ WRDA 1999, AS AMENDED CENTRAL WEST VIRGINIA MODEL AGREEMENT FOR DESIGN-Federal interests in central West Virginia pursuant to Section 571 of the Water Resources Development Act of 1999

US Army Corps of Engineers

260

SECTION 571 WRDA 1999, AS AMENDED CENTRAL WEST VIRGINIA  

E-Print Network [OSTI]

SECTION 571 ­ WRDA 1999, AS AMENDED CENTRAL WEST VIRGINIA MODEL AGREEMENT FOR CONSTRUCTION environmental assistance to non-Federal interests in central West Virginia pursuant to Section 571 of the Water

US Army Corps of Engineers

Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

SECTION 340 WRDA 1992, AS AMENDED SOUTHERN WEST VIRGINIA  

E-Print Network [OSTI]

SECTION 340 ­ WRDA 1992, AS AMENDED SOUTHERN WEST VIRGINIA MODEL AGREEMENT FOR DESIGN to be developed for providing environmental assistance to non-Federal interests in southern West Virginia pursuant

US Army Corps of Engineers

262

SECTION 571 WRDA 1999, AS AMENDED CENTRAL WEST VIRGINIA  

E-Print Network [OSTI]

SECTION 571 ­ WRDA 1999, AS AMENDED CENTRAL WEST VIRGINIA MODEL AGREEMENT FOR DESIGN ASSISTANCE to be developed for providing environmental assistance to non-Federal interests in central West Virginia pursuant

US Army Corps of Engineers

263

BLM - Approved Resource Management Plan Amendments/Record of...  

Open Energy Info (EERE)

Approved Resource Management Plan AmendmentsRecord of Decision for Solar Energy Development in Six Southwestern States Jump to: navigation, search OpenEI Reference LibraryAdd to...

264

SECTION 531 WRDA 1996, AS AMENDED SOUTHERN AND EASTERN KENTUCKY  

E-Print Network [OSTI]

SECTION 531 ­ WRDA 1996, AS AMENDED SOUTHERN AND EASTERN KENTUCKY MODEL AGREEMENT FOR DESIGN in southern and eastern Kentucky pursuant to Section 531 of the Water Resources Development Act of 1996

US Army Corps of Engineers

265

SECTION 531 WRDA 1996, AS AMENDED SOUTHERN AND EASTERN KENTUCKY  

E-Print Network [OSTI]

SECTION 531 ­ WRDA 1996, AS AMENDED SOUTHERN AND EASTERN KENTUCKY MODEL AGREEMENT FOR DESIGN and eastern Kentucky pursuant to Section 531 of the Water Resources Development Act of 1996, Public Law 104

US Army Corps of Engineers

266

SECTION 531 WRDA 1996, AS AMENDED SOUTHERN AND EASTERN KENTUCKY  

E-Print Network [OSTI]

SECTION 531 ­ WRDA 1996, AS AMENDED SOUTHERN AND EASTERN KENTUCKY MODEL AGREEMENT FOR CONSTRUCTION to be developed for providing environmental assistance to non-Federal interests in southern and eastern Kentucky

US Army Corps of Engineers

267

amend existing operating: Topics by E-print Network  

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

6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Handbook of Operating Procedures (HOP) Amendment Approval Process -UTDPP1056 Biology and...

268

SECTION 593 WRDA 1999, AS AMENDED CENTRAL NEW MEXICO  

E-Print Network [OSTI]

SECTION 593 ­ WRDA 1999, AS AMENDED CENTRAL NEW MEXICO MODEL AGREEMENT FOR DESIGN ASSISTANCE (WORK New Mexico pursuant to Section 593 of the Water Resources Development Act of 1999, Public Law 106

US Army Corps of Engineers

269

SECTION 593 WRDA 1999, AS AMENDED CENTRAL NEW MEXICO  

E-Print Network [OSTI]

SECTION 593 ­ WRDA 1999, AS AMENDED CENTRAL NEW MEXICO MODEL AGREEMENT FOR DESIGN ASSISTANCE (WORK developed for providing environmental assistance to non-Federal interests in central New Mexico pursuant

US Army Corps of Engineers

270

How the Second Amendment to China's Patent Law Affects Firms' Patenting Behavior In this study, we examine how the second amendment to China's patent law affects the  

E-Print Network [OSTI]

How the Second Amendment to China's Patent Law Affects Firms' Patenting Behavior Abstract In this study, we examine how the second amendment to China's patent law affects the patenting behavior passed a second amendment to its patent system in 2000 in accordance with the Trade-Related Aspects

Sekhon, Jasjeet S.

271

Proposed Amendment Text for Amendment 85 to the Fishery Management Plan for Groundfish of the Gulf of Alaska  

E-Print Network [OSTI]

or on the harvest of 90 percent of the participant's cooperative allocation, if the harvest of the allocation began that elect to remain in the fishery. #12;Rbaker G:\\FMGROUP\\Amendment 85 (GOA) Rockfish July stand down

272

Microscale investigation of the corrosion performances of low-carbon and stainless steels in highly alkaline concretes  

E-Print Network [OSTI]

can diffuse through the porous concrete and react with thein concrete, oxygen diffuses through the porous hydrated

Itty, Pierre-Adrien

2012-01-01T23:59:59.000Z

273

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

E-Print Network [OSTI]

infill Load ratio age at testing Concrete frame Infill paneltesting of masonry infilled reinforced concrete frame, ASCE

Koutromanos, Ioannis

2011-01-01T23:59:59.000Z

274

Construction and Preliminary HVS Tests of Pre-Cast Concrete Pavement Slabs  

E-Print Network [OSTI]

22 Figure 22. FWD data collection points on the concreteelastic moduli for the concrete, the cemented base, and the30 Figure 29. Backcalculated stiffness of concrete

Kohler, Erwin R.; du Plessis, Louw; Theyse, Hechter

2008-01-01T23:59:59.000Z

275

aggregates by relationship to concrete: Topics by E-print Network  

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

Concrete under Reversed Cyclic Loading by Jun Wei Behaviour and Analysis of Steel Fibre-Reinforced Concrete Subjected to Reversed Cyclic Loading Jun Wei Luo for developing...

276

E-Print Network 3.0 - architectural precast concrete Sample Search...  

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

Series of the PCI Foundation Innovative use of FRP for Precast Concrete Summary: -tee beams, insulated precast wall panels, architectural cladding, precast concrete filled FRP...

277

E-Print Network 3.0 - aggregate concrete beams Sample Search...  

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

concrete beams Search Powered by Explorit Topic List Advanced Search Sample search results for: aggregate concrete beams Page: << < 1 2 3 4 5 > >> 1 Technical Report Documentation...

278

E-Print Network 3.0 - aged concrete structures Sample Search...  

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

risk of premature corrosion deterioration in concrete structures exposed to aggressive salt- laden... is slightly lower at early ages than those of control concretes but exceeds...

279

Interlingual Encounter in Pierre Garnier and Niikuni Seiichis French-Japanese Concrete Poetry  

E-Print Network [OSTI]

P. (1968d). Spatialisme et posie concrte [Spatialismand concrete poetry]. Paris: Gallimard. Garnier, P. (Gomringer, E. (1968). Concrete poetry (I. M. Sinor & M. E.

Wong, Elaine S.

2015-01-01T23:59:59.000Z

280

Energy Efficiency Improvement and Cost Saving Oportunities for the Concrete Industry  

E-Print Network [OSTI]

Testing and Materials (ASTM) C94. Standard Specification for Ready Mixed Concrete.Concrete. West Conshohocken, Pennsylvania. American Society for Testing

Kermeli, Katerina

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

E-Print Network 3.0 - antiwashout underwater concrete Sample...  

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

Page 1. Report No. Summary: . Recipient's Catalog No. 4. Title and Subtitle Prediction Model for Concrete Behavior--Final Report 5. Report... for Concrete Behavior. The main...

282

Corrosion Repair and Corrosion Protection of Reinforced Concrete Structures in  

E-Print Network [OSTI]

11/14/2014 1 Corrosion Repair and Corrosion Protection of Reinforced Concrete Structures in Pulp and Paper Mills Vector Construction / Vector Corrosion Technologies www.vectorgroup.com www.vector-corrosion.com Presentation Outline · Introduction · Corrosion of Reinforced Concrete Structures · Protection of Chests

Das, Suman

283

THERMAL CONDUCTIVITY OF HEMP CONCRETES: VARIATION WITH FORMULATION, DENSITY AND  

E-Print Network [OSTI]

envelope and on the performance of systems. This behaviour is related to hygric and thermal propertiesTHERMAL CONDUCTIVITY OF HEMP CONCRETES: VARIATION WITH FORMULATION, DENSITY AND WATER CONTENT of formulation, density and water content on the thermal conductivity of hemp concretes. The investigations

284

ARE DEICING SALTS NECESSARY TO PROMOTE SCALING IN CONCRETE?  

E-Print Network [OSTI]

. Keywords: Concrete, cryosuction, durability, frost, poromechanics, porous media, thermo- dynamics, spallingARE DEICING SALTS NECESSARY TO PROMOTE SCALING IN CONCRETE? A. Fabbri1,2 , O. Coussy1 , T. Fen of the different phases that form the porous material. It eventually predicts that a less perme- able sample

Paris-Sud XI, Université de

285

Computational Modeling of Conventionally Reinforced Concrete Coupling Beams  

E-Print Network [OSTI]

COMPUTATIONAL MODELING OF CONVENTIONALLY REINFORCED CONCRETE COUPLING BEAMS A Thesis by AJAY SESHADRI SHASTRI Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of requirements... for the degree of MASTER OF SCIENCE December 2010 Major Subject: Civil Engineering Computational Modeling of Conventionally Reinforced Concrete Coupling Beams Copyright 2010...

Shastri, Ajay Seshadri

2012-02-14T23:59:59.000Z

286

Electropositive bivalent metallic ion unsaturated polyester complexed polymer concrete  

DOE Patents [OSTI]

Quick setting polymer concrete compositions are described which are mixtures of unsaturated polyesters and crosslinking monomers together with appropriate initiators and promoters in association with aggregate which may be wet and a source of bivalent metallic ions which will set to polymer concrete with excellent structural properties.

Sugama, T.; Kukacka, L.E.; Horn, W.H.

1983-05-13T23:59:59.000Z

287

Electropositive bivalent metallic ion unsaturated polyester complexed polymer concrete  

DOE Patents [OSTI]

Quick setting polymer concrete compositions with excellent structural properties are disclosed; these polymer concrete compositions are mixtures of unsaturated polyesters and crosslinking monomers together with appropriate initiators and promoters in association with aggregate, which may be wet, and with a source of bivalent metallic ions.

Sugama, Toshifumi (Mastic Beach, NY); Kukacka, Lawrence E. (Port Jefferson, NY); Horn, William H. (Brookhaven, NY)

1985-01-01T23:59:59.000Z

288

Electropositive bivalent metallic ion unsaturated polyester complexed polymer concrete  

DOE Patents [OSTI]

Quick setting polymer concrete compositions which are mixtures of unsaturated polyesters and crosslinking monomers together with appropriate initiators and promoters in association with aggregate which may be wet and a source of bivalent metallic ions which will set to polymer concrete with excellent structural properties.

Sugama, T.; Kukacka, L.E.; Horn, W.H.

1981-11-04T23:59:59.000Z

289

Method for incorporating radioactive phosphoric acid solutions in concrete  

DOE Patents [OSTI]

A method for incorporating radioactive phosphoric acid solutions in concrete is described wherein the phosphoric acid is reacted with Ca(OH).sub.2 to form a precipitate of hydroxyapatite and the hydroxyapatite is mixed with portland cement to form concrete.

Wolf, Gary A [Kennewick, WA; Smith, Jeffrey W [Lancaster, OH; Ihle, Nathan C [Walla Walla, WA

1984-01-01T23:59:59.000Z

290

NIST Special Publication 1173 Virtual Cement and Concrete  

E-Print Network [OSTI]

#12;NIST Special Publication 1173 Virtual Cement and Concrete Testing Laboratory Version 9.5 User;Virtual Cement and Concrete Testing Laboratory Version 9.5 User Guide Jeffrey W. Bullard1 Materials-8615 This document serves as the user's guide for the Virtual Cement and Con- crete Testing Laboratory (VCCTL

291

Hybrid FRP/Concrete Structural Members and Sami Rizkalla  

E-Print Network [OSTI]

with differentfiber orientations partially and/or totallyfilled with concrete. Hollow FRP and steel tubes were testedHybrid FRP/Concrete Structural Members Amir Fam1 and Sami Rizkalla 2 Department of Civil, highway overhead sign structures and bridges. The experimental program included testing to failure tubes

292

Method for incorporating radioactive phosphoric acid solutions in concrete  

DOE Patents [OSTI]

A method for incorporating radioactive phosphoric acid solutions in concrete is described wherein the phosphoric acid is reacted with Ca(OH)/sub 2/ to form a precipitate of hydroxyapatite and the hydroxyapatite is mixed with Portland cement to form concrete.

Wolf, G.A.; Smith, J.W.; Ihle, N.C.

1982-07-08T23:59:59.000Z

293

Radionuclide Retention in Concrete Wasteforms - FY13  

SciTech Connect (OSTI)

Assessing long-term performance of Category 3 waste cement grouts for radionuclide encasement requires knowledge of the radionuclide-cement interactions and mechanisms of retention (i.e., sorption or precipitation); the mechanism of contaminant release; the significance of contaminant release pathways; how wasteform performance is affected by the full range of environmental conditions within the disposal facility; the process of wasteform aging under conditions that are representative of processes occurring in response to changing environmental conditions within the disposal facility; the effect of wasteform aging on chemical, physical, and radiological properties; and the associated impact on contaminant release. This knowledge will enable accurate prediction of radionuclide fate when the wasteforms come in contact with groundwater. Data collected throughout the course of this work will be used to quantify the efficacy of concrete wasteforms, similar to those used in the disposal of low-level waste and mixed low-level waste, for the immobilization of key radionuclides (i.e., uranium, technetium, and iodine). Data collected will also be used to quantify the physical and chemical properties of the concrete affecting radionuclide retention.

Snyder, Michelle MV; Golovich, Elizabeth C.; Wellman, Dawn M.; Crum, Jarrod V.; Lapierre, Robert; Dage, Denomy C.; Parker, Kent E.; Cordova, Elsa A.

2013-10-15T23:59:59.000Z

294

Testing and evaluation of electrokinetic decontamination of concrete  

SciTech Connect (OSTI)

The goals and objectives of the technical task plan (TTP) are to (1) describe the nature and extent of concrete contamination within the Department of Energy (DOE) complex and emerging and commercial technologies applicable to these problems; (2) to match technologies to the concrete problems and recommend up to four demonstrations; (3) to initiate recommended demonstrations; and (4) to continue investigation and evaluation of the application of electrokinetic decontamination processes to concrete. This document presents findings of experimental and theoretical studies of the electrokinetic decontamination (EK) process and their implications for field demonstrations. This effort is an extension of the work performed under TTP 142005, ``Electroosmotic Concrete Decontamination. The goals of this task were to determine the applicability of EK for treating contaminated concrete and, if warranted, to evaluate EK as a potential technology for demonstration. 62 refs.

DePaoli, D.W.; Harris, M.T.; Ally, M.R. [Oak Ridge National Lab., TN (United States). Chemical Technology Div.] [and others

1996-10-01T23:59:59.000Z

295

SLAM: a sodium-limestone concrete ablation model  

SciTech Connect (OSTI)

SLAM is a three-region model, containing a pool (sodium and reaction debris) region, a dry (boundary layer and dehydrated concrete) region, and a wet (hydrated concrete) region. The model includes a solution to the mass, momentum, and energy equations in each region. A chemical kinetics model is included to provide heat sources due to chemical reactions between the sodium and the concrete. Both isolated model as well as integrated whole code evaluations have been made with good results. The chemical kinetics and water migration models were evaluated separately, with good results. Several small and large-scale sodium limestone concrete experiments were simulated with reasonable agreement between SLAM and the experimental results. The SLAM code was applied to investigate the effects of mixing, pool temperature, pool depth and fluidization. All these phenomena were found to be of significance in the predicted response of the sodium concrete interaction. Pool fluidization is predicted to be the most important variable in large scale interactions.

Suo-Anttila, A.J.

1983-12-01T23:59:59.000Z

296

Review of Concrete Biodeterioration in Relation to Buried Nuclear Waste  

SciTech Connect (OSTI)

Long-term storage of low level radioactive material in below ground concrete disposal units (DUs) (Saltstone Disposal Facility) is a means of depositing wastes generated from nuclear operations of the U.S. Department of Energy. Based on the currently modeled degradation mechanisms, possible microbial induced effects on the structural integrity of buried low level wastes must be addressed. Previous international efforts related to microbial impacts on concrete structures that house low level radioactive waste showed that microbial activity can play a significant role in the process of concrete degradation and ultimately structural deterioration. This literature review examines the recent research in this field and is focused on specific parameters that are applicable to modeling and prediction of the fate of concrete vaults housing stored wastes and the wastes themselves. Rates of concrete biodegradation vary with the environmental conditions, illustrating a need to understand the bioavailability of key compounds involved in microbial activity. Specific parameters require pH and osmotic pressure to be within a certain range to allow for microbial growth as well as the availability and abundance of energy sources like components involved in sulfur, iron and nitrogen oxidation. Carbon flow and availability are also factors to consider in predicting concrete biodegradation. The results of this review suggest that microbial activity in Saltstone, (grouted low level radioactive waste) is unlikely due to very high pH and osmotic pressure. Biodegradation of the concrete vaults housing the radioactive waste however, is a possibility. The rate and degree of concrete biodegradation is dependent on numerous physical, chemical and biological parameters. Results from this review point to parameters to focus on for modeling activities and also, possible options for mitigation that would minimize concrete biodegradation. In addition, key chemical components that drive microbial activity on concrete surfaces are discussed.

Turick, C; Berry, C.

2012-10-15T23:59:59.000Z

297

Sulfate and acid resistant concrete and mortar  

DOE Patents [OSTI]

The present invention relates to concrete, mortar and other hardenable mixtures comprising cement and fly ash for use in construction and other applications, which hardenable mixtures demonstrate significant levels of acid and sulfate resistance while maintaining acceptable compressive strength properties. The acid and sulfate hardenable mixtures of the invention containing fly ash comprise cementitious materials and a fine aggregate. The cementitous materials may comprise fly ash as well as cement. The fine aggregate may comprise fly ash as well as sand. The total amount of fly ash in the hardenable mixture ranges from about 60% to about 120% of the total amount of cement, by weight, whether the fly ash is included as a cementious material, fine aggregate, or an additive, or any combination of the foregoing. In specific examples, mortar containing 50% fly ash and 50% cement in cementitious materials demonstrated superior properties of corrosion resistance. 6 figs.

Liskowitz, J.W.; Wecharatana, M.; Jaturapitakkul, C.; Cerkanowicz, A.E.

1998-06-30T23:59:59.000Z

298

Sulfate and acid resistant concrete and mortar  

DOE Patents [OSTI]

The present invention relates to concrete, mortar and other hardenable mixtures comprising cement and fly ash for use in construction and other applications, which hardenable mixtures demonstrate significant levels of acid and sulfate resistance while maintaining acceptable compressive strength properties. The acid and sulfate hardenable mixtures of the invention containing fly ash comprise cementitious materials and a fine aggregate. The cementitous materials may comprise fly ash as well as cement. The fine aggregate may comprise fly ash as well as sand. The total amount of fly ash in the hardenable mixture ranges from about 60% to about 120% of the total amount of cement, by weight, whether the fly ash is included as a cementious material, fine aggregate, or an additive, or any combination of the foregoing. In specific examples, mortar containing 50% fly ash and 50% cement in cementitious materials demonstrated superior properties of corrosion resistance.

Liskowitz, John W. (Belle Mead, NJ); Wecharatana, Methi (Parsippany, NJ); Jaturapitakkul, Chai (Bangkok, TH); Cerkanowicz, deceased, Anthony E. (late of Livingston, NJ)

1998-01-01T23:59:59.000Z

299

Microsoft Word - Port Townsend Amendment DRAFT 5.2.12.doc  

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

2. AMENDMENT OF AGREEMENT BPA and Port Townsend amend the Agreement as follows: (a) The following Section 2.24 ("Wheel Turning Load") shall be added to the Agreement: "2.24...

300

The Price of Pretrial Release: Can We Afford to Keep Our Fourth Amendment Rights?  

E-Print Network [OSTI]

This Article looks at the intersection of the Fourth Amendment, which protects Americans' personal security against arbitrary and oppressive searches by law enforcement officials, and the Eighth Amendment, which proscribes ...

Wilson, Melanie D.

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

EA-1086: Amendments to 10 CFR Part 835 (Revised Version- 6/98)  

Broader source: Energy.gov [DOE]

This EA evaluates the environmental impacts of a proposal to issue as a final rulemaking an amended version of 10 CFR Part 835, "Occupational Radiation Protection." The amended version provides...

302

Amendment to LM-07-12 for Fiber Optic Cable Trenching at the...  

Energy Savers [EERE]

Amendment to LM-07-12 for Fiber Optic Cable Trenching at the Westminster, Colorado, Office Amendment to LM-07-12 for Fiber Optic Cable Trenching at the Westminster, Colorado,...

303

A Summary of Utilities' Positions Regarding the Clean Air Act Amendments of 1990  

E-Print Network [OSTI]

This paper summarizes information from the electric utilities in Texas concerning their preliminary plans for compliance with the 1990 Amendments to the Clean Air Act. Enactment of the amendments resulted in a new two phase, market-based allowance...

Nalepa, K. J.

304

The Return of Reasonableness: Saving the Fourth Amendment from the Supreme Court  

E-Print Network [OSTI]

The Supreme Court's Fourth Amendment jurisprudence has been oft criticized. The criticism is not surprising or undeserved. After all, the express language of the Fourth Amendment requires that the government act reasonably ...

Wilson, Melanie D.

2008-01-01T23:59:59.000Z

305

E-Print Network 3.0 - amended bacterial sulfate Sample Search...  

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

Uranium- (VI) amended at 1.5 M was reduced to less than 1 n... contained immobilized uranium. After an initial loss of the amendments, the ... Source: Istok, Jonathan "Jack" -...

306

Application of linear programming methods to determine the best location of concrete dispatch plants  

E-Print Network [OSTI]

Application of linear programming methods to determine the best location of concrete dispatch cement and concrete industry; "anybody can make concrete..... you just need cement, stone, sand, water the labor cost is so low, that for construction companies is cheaper to "handmade" their own concrete

Yong, Alexander

307

Predicting the Permeability of Pervious Concretes from Planar Images M.S. Sumanasooriya1  

E-Print Network [OSTI]

-dimensional material structures. Introduction Pervious concrete (also called Enhanced Porosity Concrete, or porous1 Predicting the Permeability of Pervious Concretes from Planar Images M.S. Sumanasooriya1 , D-dimensional material structures of pervious concretes using two-dimensional digital images obtained from actual

Bentz, Dale P.

308

4 CONCRETE REPAIR BULLETIN MAY/JUNE2001 Laser Profilometry for  

E-Print Network [OSTI]

4 CONCRETE REPAIR BULLETIN MAY/JUNE2001 Laser Profilometry for Concrete Substrate Characterization and resins are non- corrosive, they are ideally suited for the repair and retrofitting of concrete bridges highly upon the quality of the bond between the concrete and the laminate. Experience has shown that when

Maerz, Norbert H.

309

DESIGN GUIDELINES FOR CONCRETE BEAMS REINFORCED WITH MMFX MICROCOMPOSITE REINFORCING BARS  

E-Print Network [OSTI]

DESIGN GUIDELINES FOR CONCRETE BEAMS REINFORCED WITH MMFX MICROCOMPOSITE REINFORCING BARS M. Dawood: Corrosion of steel reinforcement in concrete structures and bridges is a major problem facing for concrete beams and slabs. The behavior of concrete beams reinforced with MMFX reinforcing bars is evaluated

310

Properties of concrete paving blocks made with waste marble Osman Gencela,f,*, Cengiz Ozelb  

E-Print Network [OSTI]

Properties of concrete paving blocks made with waste marble Osman Gencela,f,*, Cengiz Ozelb , Fuat: Concrete paving blocks Recycled aggregate Marble waste Concrete wear a b s t r a c t Marble industry. Waste marble is well usable instead of the usual aggregate in the concrete paving block production. ?

North Texas, University of

311

Learning outcomes MSc in Civil Engineering (Concrete Technology) RU-School of Science and Engineering 1  

E-Print Network [OSTI]

including fracture mechanics, high performance concrete including self-compacting concrete and durabilityLearning outcomes MSc in Civil Engineering (Concrete Technology) RU-School of Science and Engineering 1 MSc in Civil Engineering (Cycle 2, level 4) Specialisation: Concrete Technology MSc in Civil

Karlsson, Brynjar

312

Mechanical properties of self-compacting concrete reinforced with polypropylene fibres  

E-Print Network [OSTI]

Mechanical properties of self-compacting concrete reinforced with polypropylene fibres O. Gencel*1 of workability. Self-compacting concrete (SCC) is an innovative concrete that is able to flow under its own engineers to incorporate many materials into it. A variety of types of concrete exist.7 Self-compacting

North Texas, University of

313

Analytical and numerical methods for processing Hopkinson Bar Loaded Bending test on concrete: a comparative study  

E-Print Network [OSTI]

Analytical and numerical methods for processing Hopkinson Bar Loaded Bending test on concrete on dynamic characteristics of concrete. Various techniques have been used to test concretes at high strain for concrete structures subjected to dynamic loading such as explosions or im- pacts require information

Boyer, Edmond

314

Effect of Fiber Orientation and Ply Mix on Fiber Reinforced Polymer-Confined Concrete  

E-Print Network [OSTI]

concrete by testing under uniaxial compression a designed array of plain concrete cylinders wrappedEffect of Fiber Orientation and Ply Mix on Fiber Reinforced Polymer-Confined Concrete Ching Au, A concrete lateral strain while the kink stress was found to upshift with increasing jacket stiffness

Entekhabi, Dara

315

Concrete international /january 2010 35 Portland limestone cement (PLC) is produced by  

E-Print Network [OSTI]

Concrete international /january 2010 35 Portland limestone cement (PLC) is produced by blending demonstration of PLC concrete in the late-fall construction of a parking lot at a ready mixed concrete plant near Gatineau, QC, Canada. The performance of the plastic and hardened concretes produced with PLC

316

E-Print Network 3.0 - agricultural soil amended Sample Search...  

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

amendments and carbon sinks. Advantages Higher cation... Potential Applications Carbon sequestration Soil ... Source: Controlled Fusion Atomic Data Center (CFADC)...

317

The relative economy of prestressed concrete bridge designs and handbook data for a number of prestressed concrete beam designs  

E-Print Network [OSTI]

, 000 psi), or by using a concrete with a hd. ghsr modulus of elasticity, or by oontrolling the shrinks. ~ in the concretes or by overstretching the steel, or any oombination of these, Since this is possible~ the co. vputations will bs co. cpletcd... since the stress produced bv Fc fell vithin the presoribsd limitse 25 Principal Tensile dtressesc Ths ALHO specifications allow no dis tribution of wheel loads when computing shear stresses for concrete or steel girder brig. ~s but on the other hand...

Jones, Truman Ross

1955-01-01T23:59:59.000Z

318

AMENDMENT RECOMMENDATIONS TO THE NWPCC PERTAINING TO THE FPC and FPCOB  

E-Print Network [OSTI]

AMENDMENT RECOMMENDATIONS TO THE NWPCC PERTAINING TO THE FPC and FPCOB Columbia Basin Fish and Wildlife Authority Amendment 2.1.5.4 Fish Passage Center Include the following language in the Program: Retain the existing Fish Passage Center language (2003 Mainstem Amendment, pages 27-28) in the Program

319

CSEM WP 118 The Impact of the Clean Air Act Amendments of 1990  

E-Print Network [OSTI]

CSEM WP 118 The Impact of the Clean Air Act Amendments of 1990 on Electric Utilities and Coal Mines of the Clean Air Act Amendments of 1990 on Electric Utilities and Coal Mines: Evidence from the Stock Market at Davis, crknittel@ucdavis.edu. #12;2 The Impact of the Clean Air Act Amendments of 1990 on Electric

California at Berkeley. University of

320

PAGES11. CONTRACT lD CODE IPAGE AMENDMENT OF SOLICITATION/MODIFICATION 0': CONTRACT OF,  

E-Print Network [OSTI]

receipt of Offers D is extended. D is not extended. Offers must acknowledge receipt of this amendment: (a) By completing Items 8 and 15, and returning copies of the amendment; (b) By acknowledging receipt includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGEMENT

Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

AMENDMENT OF SOLIC ITATION/MODIFICATION OF CONTRACT 11. CONTRACT ID CODE  

E-Print Network [OSTI]

for receipt of Offers 0 is extended, 0 is not extended. Offers must acknowledge receipt of this amendment: (a) By completing Items 8 and 15, and returning copies of the amendment: (b) By acknowledging receipt a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGEMENT TO BE RECEIVED

322

AMENDMENT OF SOLICIT ATION/MODIFICA TION OF CONTRACT 1. CONTRACTID CODE  

E-Print Network [OSTI]

must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted; or (c OF YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR

323

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE PAGE  

E-Print Network [OSTI]

for receipt of Offers is extended, is not extended. Offers must acknowledge receipt of this amendment prior) By completing Items 8 and 15, and returning _copies of the amendment; (b) By acknowledging receipt a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGEMENT TO BE RECEIVED

324

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE  

E-Print Network [OSTI]

for receipt of Offers D is extended, 0 is not extended. Offers must acknowledge receipt of this amendment: (a) By completing Items 8 and 15 , and returning copies of the amendment; (b) By acknowledging includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGEMENT

325

Service Contract Act of 1965, As Amended UT-B Contracts Div Page 1 of 4  

E-Print Network [OSTI]

Service Contract Act of 1965, As Amended UT-B Contracts Div Jan 2006 Page 1 of 4 sca-1965-ext-jan06.doc SERVICE CONTRACT ACT OF 1965, AS AMENDED (Jan 2006) (a) Definitions. "Act," as used in this clause, means the Service Contract Act of 1965, as amended (41 U.S.C. 351, et seq.). "Service employee," as used

Pennycook, Steve

326

Seismic rehabilitation of a reinforced concrete flat-slab structure  

E-Print Network [OSTI]

The effectiveness of seismic rehabilitation techniques used to eliminate punching shear failures was assessed for flat-slab structural systems. This type of retrofit was evaluated for a four-story reinforced concrete (RC) frame office building...

Jimenez, Laila Margarita

1999-01-01T23:59:59.000Z

327

Natural fiber reinforced aerated concrete : an experimental investigation  

E-Print Network [OSTI]

The purpose of this study is to compare existing research with aerated concrete and fiber reinforcement to original experiments completed investigating the benefits of adding natural fiber tensile reinforcement to aerated ...

Garbis, Leonidia Maria

2013-01-01T23:59:59.000Z

328

Design of wind turbines with Ultra-High Performance Concrete  

E-Print Network [OSTI]

Ultra-High Performance Concrete (UHPC) has proven an asset for bridge design as it significantly reduces costs. However, UHPC has not been applied yet to wind turbine technology. Design codes do not propose any recommendations ...

Jammes, Franois-Xavier

2009-01-01T23:59:59.000Z

329

Roman Seawater Concrete Holds the Secret to Cutting Carbon Emissions  

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

of Roman concrete from harbor installations that have survived 2,000 years of chemical attack and wave action, "one of the most durable construction materials on the planet," says...

330

Life cycle assessment of concrete pavements : impacts and opportunities  

E-Print Network [OSTI]

The concrete pavement network in the United States plays a crucial role in the economy by enabling the transport of people and goods, but it also leads to resource consumption and environmental impacts. This thesis is ...

Loijos, Alex (Alexander Nikos)

2011-01-01T23:59:59.000Z

331

Dynamic analysis of concrete coupled wall structures : a parametric study  

E-Print Network [OSTI]

Concrete coupled wall structure is a system that can efficiently dissipate energy under the effect of lateral loads. It has been widely used in medium height buildings for several decades. While researchers have conducted ...

Huang, Elaine Annabelle, 1981-

2005-01-01T23:59:59.000Z

332

STRESS WAVE EMISSION AND FRACTURE OF PRESTRESSED CONCRETE REACTOR...  

Office of Scientific and Technical Information (OSTI)

PRESTRESSED CONCRETE REACTOR VESSEL MATERIALS. Re-direct Destination: Temp Data Fields Green, A.T. Temp Data Storage 3: Aerojet-General Corp., Sacramento, Calif. Short URL for...

333

Compressive strength of concrete and mortar containing fly ash  

DOE Patents [OSTI]

The present invention relates to concrete, mortar and other hardenable mixtures comprising cement and fly ash for use in construction. The invention includes a method for predicting the compressive strength of such a hardenable mixture, which is very important for planning a project. The invention also relates to hardenable mixtures comprising cement and fly ash which can achieve greater compressive strength than hardenable mixtures containing only concrete over the time period relevant for construction. In a specific embodiment, a formula is provided that accurately predicts compressive strength of concrete containing fly ash out to 180 days. In other specific examples, concrete and mortar containing about 15% to 25% fly ash as a replacement for cement, which are capable of meeting design specifications required for building and highway construction, are provided. Such materials can thus significantly reduce construction costs.

Liskowitz, John W. (Belle Mead, NJ); Wecharatana, Methi (Parsippany, NJ); Jaturapitakkul, Chai (Bangkok, TH); Cerkanowicz, deceased, Anthony E. (late of Livingston, NJ)

1997-01-01T23:59:59.000Z

334

Compressive strength of concrete and mortar containing fly ash  

DOE Patents [OSTI]

The present invention relates to concrete, mortar and other hardenable mixtures comprising cement and fly ash for use in construction. The invention includes a method for predicting the compressive strength of such a hardenable mixture, which is very important for planning a project. The invention also relates to hardenable mixtures comprising cement and fly ash which can achieve greater compressive strength than hardenable mixtures containing only concrete over the time period relevant for construction. In a specific embodiment, a formula is provided that accurately predicts compressive strength of concrete containing fly ash out to 180 days. In other specific examples, concrete and mortar containing about 15% to 25% fly ash as a replacement for cement, which are capable of meeting design specifications required for building and highway construction, are provided. Such materials can thus significantly reduce construction costs. 33 figs.

Liskowitz, J.W.; Wecharatana, M.; Jaturapitakkul, C.; Cerkanowicz, A.E.

1997-04-29T23:59:59.000Z

335

Compressive strength of concrete and mortar containing fly ash  

DOE Patents [OSTI]

The present invention relates to concrete, mortar and other hardenable mixtures comprising cement and fly ash for use in construction. The invention includes a method for predicting the compressive strength of such a hardenable mixture, which is very important for planning a project. The invention also relates to hardenable mixtures comprising cement and fly ash which can achieve greater compressive strength than hardenable mixtures containing only concrete over the time period relevant for construction. In a specific embodiment, a formula is provided that accurately predicts compressive strength of concrete containing fly ash out to 180 days. In other specific examples, concrete and mortar containing about 15% to 25% fly ash as a replacement for cement, which are capable of meeting design specification required for building and highway construction, are provided. Such materials can thus significantly reduce construction costs.

Liskowitz, John W. (Belle Mead, NJ); Wecharatana, Methi (Parsippany, NJ); Jaturapitakkul, Chai (Bangkok, TH); Cerkanowicz, deceased, Anthony E. (late of Livingston, NJ)

1998-01-01T23:59:59.000Z

336

Compressive strength of concrete and mortar containing fly ash  

DOE Patents [OSTI]

The present invention relates to concrete, mortar and other hardenable mixtures comprising cement and fly ash for use in construction. The invention includes a method for predicting the compressive strength of such a hardenable mixture, which is very important for planning a project. The invention also relates to hardenable mixtures comprising cement and fly ash which can achieve greater compressive strength than hardenable mixtures containing only concrete over the time period relevant for construction. In a specific embodiment, a formula is provided that accurately predicts compressive strength of concrete containing fly ash out to 180 days. In other specific examples, concrete and mortar containing about 15% to 25% fly ash as a replacement for cement, which are capable of meeting design specification required for building and highway construction, are provided. Such materials can thus significantly reduce construction costs. 33 figs.

Liskowitz, J.W.; Wecharatana, M.; Jaturapitakkul, C.; Cerkanowicz, A.E.

1998-12-29T23:59:59.000Z

337

The Influence of Travelling Fires on a Concrete Frame  

E-Print Network [OSTI]

. Current structural fire design methods do not account for these types of fires. This paper applies a novel methodology for defining a family of possible heating regimes to a framed concrete structure using the concept of travelling fires. A finite...

Law, Angus; Stern-Gottfried, Jamie; Gillie, Martin; Rein, Guillermo

2011-01-01T23:59:59.000Z

338

Concrete Industry Benefits from Ancient Romans and the ALS  

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

saw for the first time how an extraordinarily stable compound called calcium-aluminum-silicate-hydrate (C-A-S-H) plays an integral role in the structure of Roman seawater concrete,...

339

Fast Flux Test Facility final safety analysis report. Amendment 73  

SciTech Connect (OSTI)

This report provides Final Safety Analysis Report (FSAR) Amendment 73 for incorporation into the Fast Flux Test Facility (FFTR) FSAR set. This page change incorporates Engineering Change Notices (ECNs) issued subsequent to Amendment 72 and approved for incorparoration before May 6, 1993. These changes include: Chapter 3, design criteria structures, equipment, and systems; chapter 5B, reactor coolant system; chapter 7, instrumentation and control systems; chapter 9, auxiliary systems; chapter 11, reactor refueling system; chapter 12, radiation protection and waste management; chapter 13, conduct of operations; chapter 17, technical specifications; chapter 20, FFTF criticality specifications; appendix C, local fuel failure events; and appendix Fl, operation at 680{degrees}F inlet temperature.

Gantt, D.A.

1993-08-01T23:59:59.000Z

340

Recycling asphaltic concrete with sulphur as a supplemental binder  

E-Print Network [OSTI]

RECYCLING ASPHALTIC CONCRETE WITH SULPHUR AS A SUPPLEMENTAL BINDER A Thesis by ROBERT WILLIAM BARNETT Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE... August 1976 Major Subject: Civil Engineering RECYCLING ASPHALTIC CONCRETE WITH SULPHUR AS A SUPPLEMENTAL BINDER A Thesis by ROBERT WILLIAM BARNETT Approved as to style and content by: :) (Chairm o I ommit tee) (M ber) Mem er) August 1976...

Barnett, Robert William

1976-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Water permeability and microstructure of three old concretes  

SciTech Connect (OSTI)

Measurement of the permeability of concrete to water is complicated by the self-sealing phenomenon, the progressive reduction of flow during the test. Many researchers have attributed self sealing to the hydration of previously unreacted cement on exposure to water. This paper describes permeability tests on concretes continuously hydrated for 26 years. Backscattered electron images show that virtually no unhydrated cement remains in these specimens, yet they exhibit self-sealing behavior.

Hearn, N.; Detwiler, R.J.; Sframeli, C. (Univ. of Toronto, Ontario (Canada). Dept. of Civil Engineering)

1994-01-01T23:59:59.000Z

342

Systems building of short span precast concrete bridges  

E-Print Network [OSTI]

SYSTEMS BUILDING OF SHORT SPAN PRECAST CONCRETE BRIDGES A Thesis by MARVIN STEELE Submitted to the Graduate College of Texas AIIM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE May 1975 Major... Subject: Civil Engineering SYSTEMS BUILDING OF SHORT SPAN PRECAST CONCRETE BRIDGES A Thesis by MARVIN STEELE Aoproved as to style and content by: (Chairman of Committee) (Head of Department ( mber) fi (Member) May 1975 ABSTRACT Systems Building...

Steele, Marvin

1975-01-01T23:59:59.000Z

343

Predicting the fatigue life of asphalt concrete overlay systems  

E-Print Network [OSTI]

PREDICTING THE FATIGUE LIFE OF ASPHALT CONCRETE OVERLAY SYSTEMS A Thesis by FREDERICK PHILIP GERMANN Submitted to the Graduate College of Texas A&M University in Partial fulfillment of the requirement for the degree of MASTER OF SCIENCE May... 1979 Major Subject: Civil Engineering PREDICTING THE FATIGUE LIFE OF ASPHALT CONCRETE OVERLAY SYSTEMS A Thesis by FREDERICK PHILIP GERMANN Approved as to style and content by: (Chair n of Commit e) (Head of Department) (Member) (Member) May...

Germann, Frederick P

1979-01-01T23:59:59.000Z

344

Study on concrete cask storage of spent fuel in Japan  

SciTech Connect (OSTI)

The present report describes the status of the first year`s work of a five-year-long study on concrete cask storage of spent fuel in Japan. Firstly, the proposed study program is elaborated to clarify the position of the present work. Then, the results of the study which have been obtained so far are described and the technical issues are addressed to make the concrete cask storage viable in Japan.

Itoh, C. [Central Research Inst. of Electric Power Industry, Abiko, Chiba (Japan). Nuclear Fuel Cycle Dept.; Onodera, A.; Yamada, N. [Hitachi Zosen Corp., Tokyo (Japan). Nuclear Div.

1993-12-31T23:59:59.000Z

345

Laboratory-scale sodium-carbonate aggregate concrete interactions. [LMFBR  

SciTech Connect (OSTI)

A series of laboratory-scale experiments was made at 600/sup 0/C to identify the important heat-producing chemical reactions between sodium and carbonate aggregate concretes. Reactions between sodium and carbonate aggregate were found to be responsible for the bulk of heat production in sodium-concrete tests. Exothermic reactions were initiated at 580+-30/sup 0/C for limestone and dolostone aggregates as well as for hydrated limestone concrete, and at 540+-10/sup 0/C for dehydrated limestone concrete, but were ill-defined for dolostone concrete. Major reaction products included CaO, MgO, Na/sub 2/CO/sub 3/, Na/sub 2/O, NaOH, and elemental carbon. Sodium hydroxide, which forms when water is released from cement phases, causes slow erosion of the concrete with little heat production. The time-temperature profiles of these experiments have been modeled with a simplified version of the SLAM computer code, which has allowed derivation of chemical reaction rate coefficients.

Westrich, H.R.; Stockman, H.W.; Suo-Anttila, A.

1983-09-01T23:59:59.000Z

346

Effect of Concrete Waste Form Properties on Radionuclide Migration  

SciTech Connect (OSTI)

Assessing long-term performance of Category 3 waste cement grouts for radionuclide encasement requires knowledge of the radionuclide-cement interactions and mechanisms of retention (i.e., sorption or precipitation) the mechanism of contaminant release, the significance of contaminant release pathways, how waste form performance is affected by the full range of environmental conditions within the disposal facility, the process of waste form aging under conditions that are representative of processes occurring in response to changing environmental conditions within the disposal facility, the effect of waste form aging on chemical, physical, and radiological properties and the associated impact on contaminant release. This knowledge will enable accurate prediction of radionuclide fate when the waste forms come in contact with groundwater. Numerous sets of tests were initiated in fiscal years (FY) 2006-2009 to evaluate (1) diffusion of iodine (I) and technetium (Tc) from concrete into uncontaminated soil after 1 and 2 years, (2) I and rhenium (Re) diffusion from contaminated soil into fractured concrete, (3) I and Re (set 1) and Tc (set 2) diffusion from fractured concrete into uncontaminated soil, (4) evaluate the moisture distribution profile within the sediment half-cell, (5) the reactivity and speciation of uranium (VI) (U(VI)) compounds in concrete porewaters, (6) the rate of dissolution of concrete monoliths, and (7) the diffusion of simulated tank waste into concrete.

Mattigod, Shas V.; Bovaird, Chase C.; Wellman, Dawn M.; Skinner, De'Chauna J.; Cordova, Elsa A.; Wood, Marcus I.

2009-09-30T23:59:59.000Z

347

VIII International Conference on Fracture Mechanics of Concrete and Concrete Structures C. Boulay, S. Staquet, M. Azenha, A. Deraemaeker, M. Crespini, J. Carette, J. Granja, B. Delsaute, C. Dumoulin, G. Karaiskos  

E-Print Network [OSTI]

of concrete, Young's modulus, round robin test, dynamic testing, ultrasonic measurements Abstract: Early age static tests at the time of the concrete setting. This difference decreases as the concrete hardens. 1VIII International Conference on Fracture Mechanics of Concrete and Concrete Structures FraMCoS-8 C

Paris-Sud XI, Université de

348

High-volume natural volcanic pozzolan and limestone powder as partial replacements for portland cement in self-compacting and sustainable concrete  

E-Print Network [OSTI]

the resulting self-compacting concrete (SCC). Petrographicity, which satisfy self-compacting concrete criteria withoutcement in self-compacting and sustainable concrete K. Celik

2014-01-01T23:59:59.000Z

349

Assessment of FRP composite strengthened reinforced concrete bridge structures at the component and systems level through progressive damage and Non-Destructive Evaluation (NDE)  

E-Print Network [OSTI]

as obtained from testing of the concrete used in the testTesting Techniques for FRP Rehabilitated Concrete: I ATesting Techniques for FRP Rehabilitated Concrete: II

Ghosh, Kumar Kanti

2006-01-01T23:59:59.000Z

350

Date Created: March 2008 Date Amended: March 2009  

E-Print Network [OSTI]

Date Created: March 2008 Date Amended: March 2009 DYSLEXIA POLICY.doc- 1 - DYSLEXIA POLICY 1 (both written and spoken) reading, memory and organisation associated with the terms dyslexia, dyspraxia this document the term `dyslexia' will be used in a comprehensive way to refer to all of the above. The College

Subramanian, Sriram

351

Environmental assessment for amendments to 10 CFR Part 835  

SciTech Connect (OSTI)

This proposed amendment will modify the scope of 10 CFR 835 to explicitly exclude the transportation of radioactive material conducted in conformance with the Department of Transportation regulations, certain activities conducted on foreign soil, add standards for area posting and sealed radioactive source control, and add a removable surface radioactivity value for tritium.

NONE

1997-02-01T23:59:59.000Z

352

FLORIDA ATLANTIC UNIVERSITY NOTICE OF PROPOSED REGULATION AMENDMENT  

E-Print Network [OSTI]

to the Florida administrative and judicial appeal process. The Regulation was last amended in 1987. The proposed of the General Counsel, 777 Glades Road, Boca Raton, Florida, 33431, (561) 297-3007 (phone), (561) 297-2787 (fax) The address of the Agency Clerk is Room 333367, Administration Building, Florida Atlantic University, Boca

Richman, Fred

353

Volatile organic compound losses from sewage sludge-amended soils  

SciTech Connect (OSTI)

Volatile organic compounds (VOCs) applied to soil in sludge have been assumed to disappear quickly and completely. The VOC behavior in sludge-amended soils has been studied previously only in laboratory systems where the sludged soil has been spiked with compounds of interest. Behavior in these systems may not necessarily represent compound behavior in field soils to which contaminated sludge is added. A series of laboratory microcosm experiments were designed therefore to investigate the behavior of toluene, ethyl benzene, o-, m-, and p-xylene applied to soil in contaminated sludge, and factors influencing loss processes. The VOC loss from sludge-amended soil was well described by a simple one step pseudo-first-order model but in certain soils was better described by a two step first-order model. Volatilization was the predominant loss process. Rates of loss depended on sludge application rate, method of sludge application, soil properties, and on compound characteristics. Experiments indicated that spiking sludge-amended soils gave a reasonable indication of VOC loss rates from systems amended with contaminated sludge at least over a period of 23 d. The majority of VOCs applied to soils in sludge volatilizes quickly to the atmosphere over a few to 10s of days with a small fraction lost more slowly. Potential for VOC crop uptake, livestock ingestion, and contamination of ground water is low under routine, managed applications of sewage sludge to agricultural land.

Wilson, S.C.; Jones, K.C.

1999-08-01T23:59:59.000Z

354

NOTICE OF PROPOSED REGULATION AMENDMENT Date: May 31, 2011  

E-Print Network [OSTI]

Electric Vehicles which require electricity for power may park in the parking spaces designated "Electric electric motors or other non-fossil fuel for momentum. Only these vehicles will be allowed to park amended to include the addition of high efficiency vehicles; permits for residents of the Apollo and Libra

Wu, Shin-Tson

355

SECTION 593 WRDA 1999, AS AMENDED CENTRAL NEW MEXICO  

E-Print Network [OSTI]

SECTION 593 ­ WRDA 1999, AS AMENDED CENTRAL NEW MEXICO MODEL AGREEMENT FOR DESIGN AND CONSTRUCTION-Federal interests in central New Mexico pursuant to Section 593 of the Water Resources Development Act of 1999") and Section 401 of the Federal Water Pollution Control Act (33 U.S.C. 1341). Compliance with all applicable

US Army Corps of Engineers

356

SECTION 593 WRDA 1999, AS AMENDED CENTRAL NEW MEXICO  

E-Print Network [OSTI]

SECTION 593 ­ WRDA 1999, AS AMENDED CENTRAL NEW MEXICO MODEL AGREEMENT FOR CONSTRUCTION ASSISTANCE New Mexico pursuant to Section 593 of the Water Resources Development Act of 1999, Public Law 106, NEPA and Section 401 of the Federal Water Pollution Control Act (33 U.S.C. 1341). #12;

US Army Corps of Engineers

357

SECTION 593 WRDA 1999, AS AMENDED CENTRAL NEW MEXICO  

E-Print Network [OSTI]

SECTION 593 ­ WRDA 1999, AS AMENDED CENTRAL NEW MEXICO MODEL AGREEMENT FOR CONSTRUCTION ASSISTANCE to non-Federal interests in central New Mexico pursuant to Section 593 of the Water Resources Development of the Federal Water Pollution Control Act (33 U.S.C. 1341). #12;

US Army Corps of Engineers

358

SECTION 593 WRDA 1999, AS AMENDED CENTRAL NEW MEXICO  

E-Print Network [OSTI]

SECTION 593 ­ WRDA 1999, AS AMENDED CENTRAL NEW MEXICO MODEL AGREEMENT FOR DESIGN AND CONSTRUCTION environmental assistance to non-Federal interests in central New Mexico pursuant to Section 593 of the Water Pollution Control Act (33 U.S.C. 1341). Compliance with all applicable environmental laws and regulations

US Army Corps of Engineers

359

Amendment 46 Revisions to the FMP for the  

E-Print Network [OSTI]

area In chapter 2.0, section 2.1 entitled "History and Summary of Amendments," add the following to vessels using jig gear; 51 percent to vessels using hook-and- line or pot gear; and 47 percent to vessels. The Bering Sea and Aleutian Islands area Pacific cod TAC shall be allocated among gear groups as follows: 2

360

SECTION 340 WRDA 1992, AS AMENDED ENVIRONMENTAL INFRASTRUCTURE  

E-Print Network [OSTI]

SECTION 340 ­ WRDA 1992, AS AMENDED ENVIRONMENTAL INFRASTRUCTURE SOUTHERN WEST VIRGINIA MODEL of six models for the provision of environmental assistance to non-Federal interests in southern West Virginia pursuant to Section 340 of the Water Resources Development Act of 1992, Public Law 102

US Army Corps of Engineers

Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Amended on April 6, 2011 Scholarship Award Policy  

E-Print Network [OSTI]

Amended on April 6, 2011 Scholarship Award Policy Department of Mining Engineering College the guidelines as stated in the SME Student Chapter Professional and Social Responsibility Policy as outlined in the SME Student Chapter Professional and So- cial Responsibility Policy. This scholarship

Mohaghegh, Shahab

362

December 12, 2012 AMENDED ANNOUNCEMENT OF FEDERAL FUNDING OPPORTUNITY FOR  

E-Print Network [OSTI]

December 12, 2012 AMENDED ANNOUNCEMENT OF FEDERAL FUNDING OPPORTUNITY FOR THE NIST SMART GRID://www.nist.gov/smartgrid/upload/NIST-20121129-Smart-Grid-FFO.pdf) announcing the solicitation of proposals for the fiscal year 2013 Smart Grid. #12;1 12/12/12 ANNOUNCEMENT OF FEDERAL FUNDING OPPORTUNITY (FFO) Smart Grid Interoperability Standards

363

Original article Nutrient leaching from soil amended with apple waste  

E-Print Network [OSTI]

Original article Nutrient leaching from soil amended with apple waste Anne-Marie de COCKBORNE December 2000) Abstract ­ Among the possibilities for disposing of overproduction of apple, land application is flexible and inexpensive. Six soil columns receiving 0, 200 or 500 Mg of apple wasteha­1 were

Paris-Sud XI, Université de

364

Effects of remediation amendments on vadose zone microorganisms  

SciTech Connect (OSTI)

Surfactant-based foam delivery technology has been studied to remediate Hanford 200 area deep vadose zone sediment. However, the surfactants and remediation amendments have an unknown effect on indigenous subsurface microorganisms. Microbial populations are important factors to consider in remediation efforts due to their potential to alter soil geochemistry. This project focuses on measuring microbial metabolic responses to remediation amendments in batch and column studies using Deep Vadose Zone Sediments. Initial studies of the microbes from Hanford 200 area deep vadose zone sediment showed surfactants sodium dodecyl sulfate (SDS) and cocamidopropyl betaine (CAPB) and remediation amendment calcium polysulfide (CPS) had no affect on microbial growth using BiologTM Ecoplates. To move towards a more realistic field analog, soil columns were packed with Hanford 200 Area sediment. Once microbial growth in the column was verified by observing growth of the effluent solution on tryptic soy agar plates, remedial surfactants were injected into the columns, and the resulting metabolic diversity was measured. Results suggest surfactant sodium dodecyl sulfate (SDS) stimulates microbial growth. The soil columns were also visualized using X-ray microtomography to inspect soil packing and possibly probe for evidence of biofilms. Overall, BiologTM Ecoplates provide a rapid assay to predict effects of remediation amendments on Hanford 200 area deep vadose zone microorganisms.

Miller, Hannah M.; Tilton, Fred A.

2012-08-10T23:59:59.000Z

365

NOTICE OF PROPOSED REGULATION AMENDMENT Date: August 18, 2005  

E-Print Network [OSTI]

Plate Liquid Type Solar Collectors," Standard 96-1980 of the American Society of Heating, Refrigeration.: Solar Collector Testing Standards 6C7-8.002 SUMMARY OF REGULATION AMENDMENT: This regulation is revised to reflect updated information regarding the testing and standards for solar thermal collectors

Wu, Shin-Tson

366

Reclaiming earthen drainage channels using organic soil amendments  

E-Print Network [OSTI]

. The primary goal of this study was to determine the best combination of organic amendment and vegetation to stabilize and maintain these waterways. A site was selected that had surface soil textures ranging from fine sandy loam to silt loam. Soils...

Carpenter, Todd A

2000-01-01T23:59:59.000Z

367

NOTICE OF PROPOSED REGULATION AMENDMENT Date: August 18, 2005  

E-Print Network [OSTI]

Director of Florida Solar Energy Center COMMENTS CONCERNING THE PROPOSED REGULATION AMENDMENT SHOULD been modified to reflect that the Florida Solar Energy Center provides services to the solar energy by the Center shall be collected by at the Florida Solar Energy Center prior to the performance of such tests

Wu, Shin-Tson

368

Achieving "Green" Concrete Through The Use Of High Performance FiberThe Use Of High Performance Fiber  

E-Print Network [OSTI]

Achieving "Green" Concrete Through The Use Of High Performance FiberThe Use Of High Performance Fiber Reinforced Concrete ShihShih--Ho Chao,Ho Chao, Ph.DPh.D Assistant Professor, Department of Civil, 2008 #12;What is D rable Concrete?What is D rable Concrete?What is Durable Concrete?What is Durable

Chao, Shih-Ho

369

Radionuclide Migration through Sediment and Concrete: 16 Years of Investigations  

SciTech Connect (OSTI)

The Waste Management Project provides safe, compliant, and cost-effective waste management services for the Hanford Site and the U.S. Department of Energy (DOE) complex. Part of these services includes safe disposal of low-level waste and mixed low-level waste at the Hanford Low-Level Waste Burial Grounds in accordance with the requirements of DOE Order 435.1, Radioactive Waste Management. To partially satisfy these requirements, performance assessment analyses were completed and approved. DOE Order 435.1 also requires continuing data collection to increase confidence in the critical assumptions used in these analyses to characterize the operational features of the disposal facility that are relied on to satisfy the performance objectives identified in the order. Cement-based solidification and stabilization is considered for hazardous waste disposal because it is easily done and cost-efficient. One critical assumption is that concrete will be used as a waste form or container material at the Hanford Site to control and minimize the release of radionuclide constituents in waste into the surrounding environment. Concrete encasement would contain and isolate the waste packages from the hydrologic environment and act as an intrusion barrier. Any failure of concrete encasement may result in water intrusion and consequent mobilization of radionuclides from the waste packages. The radionuclides iodine-129, selenium-75, technetium-99, and uranium-238 have been identified as long-term dose contributors (Mann et al. 2001; Wood et al. 1995). Because of their anionic nature in aqueous solutions, these constituents of potential concern may be released from the encased concrete by mass flow and/or diffusion and migrate into the surrounding subsurface environment (Serne et al. 1989; 1992; 1993a, b; 1995). Therefore, it is necessary to assess the performance of the concrete encasement structure and the ability of the surrounding soil to retard radionuclide migration. Each of the test methods performed throughout the lifetime of the project has focused on different aspects of the concrete waste form weathering process. Diffusion of different analytes [technetium-99 (Tc-99), iodine-125 (I-125), stable iodine (I), uranium (U), and rhenium (Re)] has been quantified from experiments under both saturated and unsaturated conditions. The water-saturated conditions provide a conservative estimate of the concretes performance in situ, and the unsaturated conditions provide a more accurate estimate of the diffusion of contaminants from the concrete.

Golovich, Elizabeth C.; Mattigod, Shas V.; Snyder, Michelle MV; Powers, Laura; Whyatt, Greg A.; Wellman, Dawn M.

2014-11-06T23:59:59.000Z

370

Report on aging of nuclear power plant reinforced concrete structures  

SciTech Connect (OSTI)

The Structural Aging Program provides the US Nuclear Regulatory Commission with potential structural safety issues and acceptance criteria for use in continued service assessments of nuclear power plant safety-related concrete structures. The program was organized under four task areas: Program Management, Materials Property Data Base, Structural Component Assessment/Repair Technology, and Quantitative Methodology for Continued Service Determinations. Under these tasks, over 90 papers and reports were prepared addressing pertinent aspects associated with aging management of nuclear power plant reinforced concrete structures. Contained in this report is a summary of program results in the form of information related to longevity of nuclear power plant reinforced concrete structures, a Structural Materials Information Center presenting data and information on the time variation of concrete materials under the influence of environmental stressors and aging factors, in-service inspection and condition assessments techniques, repair materials and methods, evaluation of nuclear power plant reinforced concrete structures, and a reliability-based methodology for current and future condition assessments. Recommendations for future activities are also provided. 308 refs., 61 figs., 50 tabs.

Naus, D.J.; Oland, C.B. [Oak Ridge National Lab., TN (United States); Ellingwood, B.R. [Johns Hopkins Univ., Baltimore, MD (United States). Dept. of Civil Engineering

1996-03-01T23:59:59.000Z

371

Concrete Cleaning, Inc. centrifugal shot blaster: Baseline report; Summary  

SciTech Connect (OSTI)

The centrifugal shot blaster is an electronically operated shot-blast machine that removes layer of concrete of varying depths. Hardened steel shot propelled at a high rate of speed abrades the surface of the concrete. The depth of material removed is determined by the rate of speed the machine is traveling and the volume of shot being fired into the blast chamber. The steel shot is reused until it is pulverized to dust, which is deposited in the waste container with the concrete being removed. Debris is continually vacuumed by a large dust collection system attached to the shot blaster. The safety and health evaluation during the human factors assessment focused on two main areas: noise and dust.

NONE

1997-07-31T23:59:59.000Z

372

Treatment of fly ash for use in concrete  

SciTech Connect (OSTI)

A process for treating fly ash to render it highly usable as a concrete additive. A quantity of fly ash is obtained that contains carbon and which is considered unusable fly ash for concrete based upon foam index testing. The fly ash is mixed with an activator solution sufficient to initiate a geopolymerization reaction and for a geopolymerized fly ash. The geopolymerized fly ash is granulated. The geopolymerized fly ash is considered usable fly ash for concrete according to foam index testing. The geopolymerized fly ash may have a foam index less than 35% of the foam index of the untreated fly ash, and in some cases less than 10% of the foam index of the untreated fly ash. The activator solution may contain an alkali metal hydroxide, carbonate, silicate, aluminate, or mixtures thereof.

Boxley, Chett; Akash, Akash; Zhao, Qiang

2013-01-08T23:59:59.000Z

373

Treatment of fly ash for use in concrete  

DOE Patents [OSTI]

A process for treating fly ash to render it highly usable as a concrete additive. A quantity of fly ash is obtained that contains carbon and which is considered unusable fly ash for concrete based upon foam index testing. The fly ash is mixed with an activator solution sufficient to initiate a geopolymerization reaction and for a geopolymerized fly ash. The geopolymerized fly ash is granulated. The geopolymerized fly ash is considered usable fly ash for concrete according to foam index testing. The geopolymerized fly ash may have a foam index less than 35% of the foam index of the untreated fly ash, and in some cases less than 10% of the foam index of the untreated fly ash. The activator solution may contain an alkali metal hydroxide, carbonate, silicate, aluminate, or mixtures thereof.

Boxley, Chett (Park City, UT); Akash, Akash (Salt lake City, UT); Zhao, Qiang (Natick, MA)

2012-05-08T23:59:59.000Z

374

Treatment of fly ash for use in concrete  

DOE Patents [OSTI]

A process for treating fly ash to render it highly usable as a concrete additive. A quantity of fly ash is obtained that contains carbon and which is considered unusable fly ash for concrete based upon foam index testing. The fly ash is mixed with a quantity of spray dryer ash (SDA) and water to initiate a geopolymerization reaction and form a geopolymerized fly ash. The geopolymerized fly ash is granulated. The geopolymerized fly ash is considered usable fly ash for concrete according to foam index testing. The geopolymerized fly ash may have a foam index less than 40%, and in some cases less than 20%, of the foam index of the untreated fly ash. An optional alkaline activator may be mixed with the fly ash and SDA to facilitate the geopolymerization reaction. The alkaline activator may contain an alkali metal hydroxide, carbonate, silicate, aluminate, or mixtures thereof.

Boxley, Chett (Park City, UT)

2012-05-15T23:59:59.000Z

375

Survey of four damage models for concrete.  

SciTech Connect (OSTI)

Four conventional damage plasticity models for concrete, the Karagozian and Case model (K&C), the Riedel-Hiermaier-Thoma model (RHT), the Brannon-Fossum model (BF1), and the Continuous Surface Cap Model (CSCM) are compared. The K&C and RHT models have been used in commercial finite element programs many years, whereas the BF1 and CSCM models are relatively new. All four models are essentially isotropic plasticity models for which 'plasticity' is regarded as any form of inelasticity. All of the models support nonlinear elasticity, but with different formulations. All four models employ three shear strength surfaces. The 'yield surface' bounds an evolving set of elastically obtainable stress states. The 'limit surface' bounds stress states that can be reached by any means (elastic or plastic). To model softening, it is recognized that some stress states might be reached once, but, because of irreversible damage, might not be achievable again. In other words, softening is the process of collapse of the limit surface, ultimately down to a final 'residual surface' for fully failed material. The four models being compared differ in their softening evolution equations, as well as in their equations used to degrade the elastic stiffness. For all four models, the strength surfaces are cast in stress space. For all four models, it is recognized that scale effects are important for softening, but the models differ significantly in their approaches. The K&C documentation, for example, mentions that a particular material parameter affecting the damage evolution rate must be set by the user according to the mesh size to preserve energy to failure. Similarly, the BF1 model presumes that all material parameters are set to values appropriate to the scale of the element, and automated assignment of scale-appropriate values is available only through an enhanced implementation of BF1 (called BFS) that regards scale effects to be coupled to statistical variability of material properties. The RHT model appears to similarly support optional uncertainty and automated settings for scale-dependent material parameters. The K&C, RHT, and CSCM models support rate dependence by allowing the strength to be a function of strain rate, whereas the BF1 model uses Duvaut-Lion viscoplasticity theory to give a smoother prediction of transient effects. During softening, all four models require a certain amount of strain to develop before allowing significant damage accumulation. For the K&C, RHT, and CSCM models, the strain-to-failure is tied to fracture energy release, whereas a similar effect is achieved indirectly in the BF1 model by a time-based criterion that is tied to crack propagation speed.

Leelavanichkul, Seubpong (University of Utah, Salt Lake City, UT); Brannon, Rebecca Moss (University of Utah, Salt Lake City, UT)

2009-08-01T23:59:59.000Z

376

Effect of Corrosion on the Seismic Response of a Single-Bent, Reinforced Concrete Bridge  

E-Print Network [OSTI]

The effect of corrosion on a single-bent, reinforced concrete (RC) bridge subject to seismic loading is the primary focus of this research. This work attempts to determine the effects of decreasing rebar diameter and concrete cover spalling...

Harvat, Jessica

2010-07-14T23:59:59.000Z

377

The Effect of Elevated Temperature on Concrete Materials and Structures - a Literature Review.  

SciTech Connect (OSTI)

The objective of this limited study was to provide an overview of the effects of elevated temperature on the behavior of concrete materials and structures. In meeting this objective the effects of elevated temperatures on the properties of ordinary Portland cement concrete constituent materials and concretes are summarized. The effects of elevated temperature on high-strength concrete materials are noted and their performance compared to normal strength concretes. A review of concrete materials for elevated-temperature service is presented. Nuclear power plant and general civil engineering design codes are described. Design considerations and analytical techniques for evaluating the response of reinforced concrete structures to elevated-temperature conditions are presented. Pertinent studies in which reinforced concrete structural elements were subjected to elevated temperatures are described.

Naus, Dan J [ORNL

2006-03-01T23:59:59.000Z

378

Meso-Scale Model for Simulations of Concrete Subjected to Cryogenic Temperatures  

E-Print Network [OSTI]

software ABAQUS. In this model, concrete is considered as a 3- phase composite material in a meso-scale structure: mortar matrix, aggregate, and interfacial transmission zone (ITZ). The Concrete Damage Plasticity model in ABAQUS is used to represent...

Masad, Noor Ahmad

2013-07-17T23:59:59.000Z

379

Evaluation of Multiple Corrrosion Protection Systems and Corrosion Inhibitors for Reinforced Concrete Bridge Decks  

E-Print Network [OSTI]

that a reduced water-cement ratio improves the corrosion resistance of conventional steel in uncracked concrete. The use of a corrosion inhibitor improves the corrosion resistance of conventional steel in both cracked and uncracked concrete, but provides...

Xing, Lihua

2010-05-10T23:59:59.000Z

380

Lightweight concrete : investigations into the production of variable density cellular materials  

E-Print Network [OSTI]

This research focuses on the intersection between material composition and form in the development of a new type of concrete. As concrete is the most widely used building material in the world, innovation in this material ...

Cooke, Timothy Graham

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Seismic vulnerability of older reinforced concrete frame structures in Mid-America  

E-Print Network [OSTI]

This research quantifies the seismic vulnerability of older reinforced concrete frame structures located in Mid-America. After designing a representative three-story gravity load designed reinforced concrete frame structure, a nonlinear analytical...

Beason, Lauren Rae

2004-09-30T23:59:59.000Z

382

Evaluation and optimization of pervious concrete with respect to permeability and clogging  

E-Print Network [OSTI]

environmental effects associated with pavement runoff has also increased. These two issues have spurred the recent interest in pervious concrete pavements.Pervious concrete, however, has deficiencies which limit its application as pavements. These limitations...

Joung, Young

2010-01-20T23:59:59.000Z

383

Evaluation of Economic Impact of Three-Dimensional Modeling in Precast Concrete Engineering  

E-Print Network [OSTI]

Evaluation of Economic Impact of Three-Dimensional Modeling in Precast Concrete Engineering Rafael (IT); Concrete, precast; Economic factors; Three-dimensional models. Introduction "The application to this; but the funda- mental reason undoubtedly was economic." (Mitchell 1977). Intuitive assessments

Sacks, Rafael

384

Seismic fragility curves for reinforced concrete A Dissertation Submitted in Partial Fulfilment of the Requirements  

E-Print Network [OSTI]

Seismic fragility curves for reinforced concrete buildings A Dissertation Submitted in Partial dissertation entitled "Seismic fragility curves for reinforced concrete frame and wall- frame buildings. Buildings designed for seismic loading, and buildings designed only for gravity loads, are considered

385

E-Print Network 3.0 - asphalt concrete core Sample Search Results  

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

southbound on US-169 are coming from the gravel pits, concrete plants, and waste disposal facilities just north Summary: to raveling of the asphalt at the concrete-asphalt...

386

The use of nondestructive testing methods for the condition assessment of concrete bridge girders  

E-Print Network [OSTI]

There are over 594,000 publicly controlled bridges in the United States. Concrete and pre-stressed concrete bridges account for nearly 50% of the bridges in the US inventory. This proportion is increasing each year, as new ...

Unruh, Richard Cornelius, 1974-

2004-01-01T23:59:59.000Z

387

Practical limitations of single-span ultra-high performance concrete beams  

E-Print Network [OSTI]

Since its development in the early 1970's, researchers have continued to push the limits of concrete mixtures through the creation of ultra-high performance concretes. The use of this class of materials has allowed designers ...

Abrams, Daniel Scott

2013-01-01T23:59:59.000Z

388

Tall concrete buildings subject to vertically moving fires: A case study approach  

E-Print Network [OSTI]

regarded as safe in a fire situation as concrete is non-flammable and exhibits highly insulating material properties. The majority of current research relating to the impact of fire on structures examines other forms of construction. Research of concrete...

Fletcher, Ian A

389

E-Print Network 3.0 - alkali-activated slag concrete Sample Search...  

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

66 By-Products Utilization Summary: Center for By-Products Utilization SELF-COMPACTING CONCRETE (SCC) OR SELF- LEVELING CONCRETE (SLC... - MILWAUKEE 12;2 SELF-COMPACTING...

390

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

E-Print Network [OSTI]

of Asphalt Concrete-Physical Testing. Final Report, #930-of Asphalt Concrete: Chemical Testing. Alabama Highwayconcrete mixes, it is preferred to use a mix that would have good moisture resistance under laboratory testing

Lu, Qing

2005-01-01T23:59:59.000Z

391

Lateral behavior of reinforced concrete columns supported on Type II shafts  

E-Print Network [OSTI]

concrete strength reached the desired strength on the day of testingconcrete and reinforcing steel during the construction period and on the day of column-shaft assembly testing.during testing. However, the cracking of the concrete at the

Liu, Yujia

2012-01-01T23:59:59.000Z

392

Experimental and Analytical Investigation of Reinforced Concrete Columns Subjected to Horizontal and Vertical Ground Motions  

E-Print Network [OSTI]

errors in concrete sampling and testing these cylinders areprocedure for concrete cylinder making and testing. Cylinderconcrete stress-strain relationship on the 72 day (1 cylinder) 3.21 Testing

Lee, Hyerin

2011-01-01T23:59:59.000Z

393

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

E-Print Network [OSTI]

of Asphalt Concrete-Physical Testing. Final Report no.of Asphalt Concrete: Chemical Testing. Alabama Highwayconcrete mixes, it is preferable to use a mix that would have good moisture resistance under laboratory testing

Harvey, John T; Lu, Qing

2005-01-01T23:59:59.000Z

394

Effects of environment and construction procedures on concrete pavement surfaces  

E-Print Network [OSTI]

on the consolidation of concrete, most of these are related to beams, 1-7"- columns, floor slabs, and dams. Reports in the areas of con- crete pavement consolidation arc somewhat limited in number. * Supersc -ipt Arabic numbers throughout this thesis refer... be durable, structurally sound, and safe (provide ample ance) . To this end, a study was conducted to d ve) o) i improv '. d construction prattler s rel ated to th consolidation, f. 'nishing, and cu. ing of Continuously Reinforced Concrete Pavemont, s (CR...

Wrbas, Ronald Otto

1972-01-01T23:59:59.000Z

395

The Thermal Conductivity of Low Density Concretes Containing Perlite  

E-Print Network [OSTI]

-Tov, "HEATING5 - An IBM 360 Heat Conduction Program," ORNL/CSD/tm-15(1977). Oak Ridge National Laboratory, Oak Ridge, TN 37831. [5J Expanded Shale Clay and Slate Institute, "Lightweight Concrete Information Sheet," No.4, Washington, D.C., 1958. [6J Moore..., J. P., R. S. Graves, J. G. Stradley, J. H. Hannah, and D. L. McElroy, "Some Thermal Transport Properties of a Limestone Concrete," ORNL/TM-2644 (August 1969), Oak Ridge National Laboratory, Oak Ridge, TN 37831. [7J Valore, R. C., Jr., "Cellular...

Yarbrough, D. W.

396

High-performance, high-volume fly ash concrete  

SciTech Connect (OSTI)

This booklet offers the construction professional an in-depth description of the use of high-volume fly ash in concrete. Emphasis is placed on the need for increased utilization of coal-fired power plant byproducts in lieu of Portland cement materials to eliminate increased CO{sub 2} emissions during the production of cement. Also addressed is the dramatic increase in concrete performance with the use of 50+ percent fly ash volume. The booklet contains numerous color and black and white photos, charts of test results, mixtures and comparisons, and several HVFA case studies.

NONE

2008-01-15T23:59:59.000Z

397

Quick setting water-compatible furfuryl alcohol polymer concretes  

DOE Patents [OSTI]

A novel quick setting polymer concrete composite comprising a furfuryl alcohol monomer, an aggregate containing a maximum of 8% by weight water, and about 1-10% trichlorotoluene initiator and about 20-80% powdered metal salt promoter, such as zinc chloride, based on the weight of said monomer, to initiate and promote polymerization of said monomer in the presence of said aggregate, within 1 hour after mixing at a temperature of -20.degree. C. to 40.degree. C., to produce a polymer concrete having a 1 hour compressive strength greater than 2000 psi.

Sugama, Toshifumi (Ridge, NY); Kukacka, Lawrence E. (Port Jefferson, NY); Horn, William H. (Brookhaven, NY)

1982-11-30T23:59:59.000Z

398

Investigation for determining the curing characteristics of lightweight aggregate concrete  

E-Print Network [OSTI]

reached in froa 65 to 70 days for clay and shale con- ctetece The possibility of the entrapped or absorbed water in the aggregate acting as a self curing agent for lightweight aggregate concrete and the supporting statcscents concerning the slower than... standard 5/8 inch roue@, bullet~ tamping rod, while the beams wars compacted by being roddsd 55 times on each of two equal S inch layers with the standard tamping rod, The concrete an both sides and at the ends of the bxsm mold was spaded with a travel...

Carlton, Thomas Arlis

1955-01-01T23:59:59.000Z

399

Creep behavior of refractory concretes. First annual report, October 1, 1981-September 30, 1982  

SciTech Connect (OSTI)

Objectives are to evaluate the creep of alumina refractory concretes, determine differential transient creep strain of pristine specimens, develop a mathematical model for the creep behavior of refractory concretes, investigate the creep of commercial refractory concretes, and determine the effect of fiber reinforcements on the creep of concretes. After a summary of the first four years' progress, the technical progress during the fourth year is described in detail. 97 figures. (DLC)

McGee, T.D.

1982-12-01T23:59:59.000Z

400

E-Print Network 3.0 - air entrained concrete Sample Search Results  

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

; Materials Science 10 By-Products Utilization Summary: . Keywords: aggregates, air entrainment, autogenous shrinkage, compressive strength, concretes, drying... on...

Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Speciation and bioavailability of zinc in amended sediments  

SciTech Connect (OSTI)

The speciation and bioavailability of zinc (Zn) in smelter-contaminated sediments were investigated as a function of phosphate (apatite) and organic amendment loading rate. Zinc species identified in preamendment sediment were zinc hydroxide-like phases, sphalerite, and zinc sorbed to an iron oxide via X-ray adsorption near edge structure (XANES) spectroscopy. Four months after adding the amendments to the contaminated sediment, hopeite, a Zn phosphate mineral, was identified indicating phosphate was binding and sequestering available Zn and Zn pore water concentrations were decreased at levels of 90% or more. Laboratory experiments indicate organic amendments exhibit a limited effect and may hinder sequestration of pore water Zn when mixed with apatite. The acute toxicity of the sediment Zn was evaluated with Hyalella azteca, and bioaccumulation of Zn with Lumbriculus variegates. The survivability of H. azteca increased as a function of phosphate (apatite) loading rate. In contaminated sediment without apatite, no specimens of H. azteca survived. The bioaccumulation of Zn in L. variegates also followed a trend of decreased bioaccumulation with increased phosphate loading in the contaminated sediment. The research supports an association between Zn speciation and bioavailability.

Williams, Aaron G.B.; Scheckel, Kirk G.; McDermott, Gregory; Gratson, David; Neptune, Dean; Ryan, James A.

2011-12-09T23:59:59.000Z

402

The influence of abstract and concrete mindsets on anticipating and guiding others' self-regulatory effortsq  

E-Print Network [OSTI]

The influence of abstract and concrete mindsets on anticipating and guiding others' self the impact of abstract and concrete mindsets on attention to goal-relevant aspects of others' situations. An abstract (relative to a concrete) mindset, by making accessible the cognitive operation of considering

Freitas, Antonio L.

403

Linseed Oil-Based Concrete Surface Treatment -for Building and Highway Structures in  

E-Print Network [OSTI]

, Linseed Oil-Based Concrete Surface Treatment -for Building and Highway Structures in Hong Kong Y using jour Canadian linseed oil- based sealants on concrete specimens madejrom G30120 and G45120 Keywords: Unseed Oil, Concrete Surface Treatment, Salt Spray Resistance, Carbonation, Bond Strength, Ultra

404

A model for reactive porous transport during re-wetting of hardened concrete  

E-Print Network [OSTI]

A model for reactive porous transport during re-wetting of hardened concrete Michael Chapwanya residing in the porous concrete matrix. The main hypothesis in this model is that the reaction product hydration; Porous media; Reaction-diffusion equations; Vari- able porosity. 1. Introduction Concrete

Stockie, John

405

A poroplastic model for hygro-chemo-mechanical damage of concrete M. Cuomo & A. Nicolosi  

E-Print Network [OSTI]

and to the prediction of long term response of concrete constructions. The crystalline and porous microstruc- tureA poroplastic model for hygro-chemo-mechanical damage of concrete M. Cuomo & A. Nicolosi Department an analytical model for calcium leaching of concrete due to water. The model is set in the framework

Paris-Sud XI, Université de

406

A MOVING-BOUNDARY PROBLEM FOR CONCRETE CARBONATION: GLOBAL EXISTENCE AND UNIQUENESS OF  

E-Print Network [OSTI]

in a porous solid ­ concrete ­ which incorporates slow diffusive transport, interfacial exchange between wet of gaseous CO2 from the atmosphere penetrate the concrete via the unsaturated porous matrix. After enteringA MOVING-BOUNDARY PROBLEM FOR CONCRETE CARBONATION: GLOBAL EXISTENCE AND UNIQUENESS OF WEAK

Eindhoven, Technische Universiteit

407

Concrete calcium leaching at variable temperature: experimental data and numerical model inverse  

E-Print Network [OSTI]

, concrete porous solution is very basic (pH around 13) and several ionic species are highly concentrated [1Concrete calcium leaching at variable temperature: experimental data and numerical model inverse/DSU/SSIAD/BERIS, Fontenay-aux-Roses, France Abstract A simplified model for calcium leaching in concrete is presented

Paris-Sud XI, Université de

408

Experimentally Validated Compatibility Strut and Tie Modeling of Reinforced Concrete Bridge Piers  

E-Print Network [OSTI]

(drift) response .......................................................................... 95 Figure 3.13 Nonlinear response and early concrete cracking effects ............................. 97 Figure 3.14 Nonlinear concrete and steel response... design tool, STM is purely a force-based approach that implicitly assumes a lower bound solution by establishing a plastic truss consisting of concrete compression struts and steel tension ties, satisfying both equilibrium and ultimate material...

Scott, Reece Melby

2010-10-12T23:59:59.000Z

409

Paper No. RBCSR RESPONSE OF A BURIED CONCRETE PIPELINE TO GROUND  

E-Print Network [OSTI]

Paper No. RBCSR RESPONSE OF A BURIED CONCRETE PIPELINE TO GROUND RUPTURE: A FULL-SCALE EXPERIMENT A typical water distribution system includes a network of steel and concrete pipelines. Concrete segmental pipelines are particularly vulnerable to damage by ground rupture. Ground displacements may produce

Michalowski, Radoslaw L.

410

LIFE CYCLE ASSESSMENT OF A HEMP CONCRETE WALL: IMPACT OF THICKNESS AND COATING.  

E-Print Network [OSTI]

LIFE CYCLE ASSESSMENT OF A HEMP CONCRETE WALL: IMPACT OF THICKNESS AND COATING. Sylvie PRETOT, this study concerns the LCA of an environmentally friendly material used for building construction, hemp construction materials, hemp concrete has a low impact on environment. Moreover, hemp concrete contributes

Paris-Sud XI, Université de

411

Concrete properties evaluation by statistical fusion of NDT techniques Zoubir Mehdi Sbartaa  

E-Print Network [OSTI]

1 Concrete properties evaluation by statistical fusion of NDT techniques Zoubir Mehdi Sbartaïa (NDT) techniques are affected in different ways by concrete properties such as porosity, complexity of the pore network, water content, strength, etc. Therefore, extracting one concrete property from one NDT

Boyer, Edmond

412

Concrete Pavement I-285 under 5th runway at Hartsfield Jackson  

E-Print Network [OSTI]

Concrete Pavement Sweet as a James Page I-285 under 5th runway at Hartsfield Jackson International Concrete Paving project I-285 East Perimeter Fiscal 2012 GDOT placed 205,704 square yards of RCC Pavement Portland Cement Concrete Pavement State Route 96 Crawford / Peach Counties I-75 Tift County CRC Lane

413

An experimental evaluation of two effective medium theories for ultrasonic wave propagation in concrete  

E-Print Network [OSTI]

in concrete Jean-François Chaix*, Mathieu Rossat, Vincent Garnier, Gilles Corneloup. Laboratoire de and experimental data in concrete. As a consequence of its composition and manufacturing process, this material has of longitudinal waves to be described at the scale of materials such as concrete. The validity limits

Paris-Sud XI, Université de

414

Making the abstract concrete 1 Running head: VISUALIZING MATHEMATICAL SOLUTION PROCEDURES  

E-Print Network [OSTI]

Making the abstract concrete 1 Running head: VISUALIZING MATHEMATICAL SOLUTION PROCEDURES Making the Abstract Concrete: Visualizing Mathematical Solution Procedures Katharina Scheiter University of Tuebingen) (2006) 9-25" DOI : 10.1016/j.chb.2005.01.009 #12;Making the abstract concrete 2 Abstract This article

Paris-Sud XI, Université de

415

E. F. Redish 1 DTS Proposal Learning the Language of Science: Advanced Math for Concrete Thinkers  

E-Print Network [OSTI]

E. F. Redish 1 DTS Proposal Learning the Language of Science: Advanced Math for Concrete Thinkers, differential equations, and Fourier transforms, many concrete thinkers find these topics to be insurmount- able to teach abstract math to concrete thinkers could have a broad impact beyond physics. Many fields

Maryland at College Park, University of

416

Numerical determination of the tensile response and the dissipated fracture energy of concrete: role of the  

E-Print Network [OSTI]

Numerical determination of the tensile response and the dissipated fracture energy of concrete concrete can be considered as a mix of coarse aggregates with a mortar paste matrix. In this paper we of concrete. Each coarse aggregate is assumed to be circular with six different radiuses following

Paris-Sud XI, Université de

417

SERVICEABILITY OF CONCRETE BEAMS PRESTRESSED BY CARBON FffiRE REINFORCED PLASTIC .RODS  

E-Print Network [OSTI]

SERVICEABILITY OF CONCRETE BEAMS PRESTRESSED BY CARBON FffiRE REINFORCED PLASTIC .RODS A of Manitoba to study the serviceability of concrete beams prestressed by carbon fibre reinforced plastic (CFRP) rods. The experimental program consisted of eight concrete beams prestressed by CFRP rods and two

418

A continuum damage modelling of quasi-static fatigue strength of plain concrete  

E-Print Network [OSTI]

A continuum damage modelling of quasi-static fatigue strength of plain concrete S. H. Maia,b , F of concrete. The approach is based on the framework of continuum damage mechanics where the fatigue model fatigue tests have been performed on a concrete the formulation of which is close to the one used

Paris-Sud XI, Université de

419

The Role of Concrete Marine Structures in the Recovery of Energy and Natural Resources from the  

E-Print Network [OSTI]

The Role of Concrete Marine Structures in the Recovery of Energy and Natural Resources from Concrete materials are derived from some of the most abundant and economically available sources on this planet. Recent advancements in the development of concrete technology related to the durability, strength

Frandsen, Jannette B.

420

IMPACT OF ALTERNATIVE CEMENTITIOUS MATERIAL ON THE1 MECHANICAL AND TRANSFER PROPERTIES OF CONCRETE2  

E-Print Network [OSTI]

OF CONCRETE2 3 Alexandre Pavoine, David Harbec, Thierry Chaussadent, Arezki Tagnit-Hamou and Loïc4 Divet5. The subject of his PhD thesis was the risk of development of Delayed9 Ettringite Formation in concretes. His research interests include durability of concrete and the10 development of alternative materials

Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Running head: CONCRETE PROSOCIAL GOALS MAXIMIZE HAPPINESS 1 Getting the Most out of Giving  

E-Print Network [OSTI]

Running head: CONCRETE PROSOCIAL GOALS MAXIMIZE HAPPINESS 1 Getting the Most out of Giving: Concretely Framing a Prosocial Goal Maximizes Happiness Melanie Rudda University of Houston Jennifer Aakerb Melcher Hall, Houston, TX 77204-6021; Email: mrrudd@bauer.uh.edu; Phone: 713.743.4572. #12;CONCRETE

Bogyo, Matthew

422

QUALIFICATION OF A TRULY DISTRIBUTED FIBER OPTIC TECHNIQUE FOR STRAIN AND TEMPERATURE MEASUREMENTS IN CONCRETE STRUCTURES  

E-Print Network [OSTI]

MEASUREMENTS IN CONCRETE STRUCTURES J.M. Henault1 , J. Salin1 , G. Moreau1 , S. Delepine-Lesoille2 , J. Bertand with different materials targeting to last for decades, either embedded in the concrete or attached to the surface of the structure. They must ensure an optimal transfer of temperature and strain from the concrete

Paris-Sud XI, Université de

423

Hybrid Control Charts for Active Control and Monitoring of Concrete Strength  

E-Print Network [OSTI]

Hybrid Control Charts for Active Control and Monitoring of Concrete Strength Busaba Laungrungrong1 ; Barzin Mobasher2 ; Douglas Montgomery3 ; and Connie M. Borror4 Abstract: Concrete is the most widely used the efficiency of a concrete production process. Statistical process control is generally applied to gain

Mobasher, Barzin

424

MODELLING OF CONCRETE STRUCTURES AFFECTED BY INTERNAL SWELLING REACTIONS: COUPLINGS BETWEEN  

E-Print Network [OSTI]

Page 1 MODELLING OF CONCRETE STRUCTURES AFFECTED BY INTERNAL SWELLING REACTIONS: COUPLINGS BETWEEN of the affected concrete that generally leads to cracking and decrease of its mechanical properties of the concrete works and structural integrity. To manage with considered suffering structures, it is necessary

Paris-Sud XI, Université de

425

Concrete Structure Design Using Mixed-Integer Nonlinear Programming with Complementarity Constraints  

E-Print Network [OSTI]

Concrete Structure Design Using Mixed-Integer Nonlinear Programming with Complementarity) formulation to achieve minimum-cost designs for reinforced concrete (RC) structures that satisfy building code requirements. The objective function includes material and labor costs for concrete, steel reinforcing bars

426

TEST ON PRESTRESSED CONCRETE BEAM WITH AFRP SPIRAL CONFINEMENT AND EXTERNAL ARAMID TENDONS  

E-Print Network [OSTI]

D at the University of Cambridge and is currently researching the properties of self-compacting concretesTEST ON PRESTRESSED CONCRETE BEAM WITH AFRP SPIRAL CONFINEMENT AND EXTERNAL ARAMID TENDONS C. J concrete beam. Aramid Fibre Reinforced Polymers (AFRP) are used to make compression confinement in the form

Burgoyne, Chris

427

Peel and Shear Fracture Characterization of Debonding in FRP Plated Concrete Affected by Moisture  

E-Print Network [OSTI]

polymer CFRP plated concrete systems by mechanically testing accelerated moisture conditioned mesoscalePeel and Shear Fracture Characterization of Debonding in FRP Plated Concrete Affected by Moisture fracture toughness as the quantification parameter of the CFRP-epoxy-concrete trilayer system, which

Entekhabi, Dara

428

[ ]May 2014 Portland cement concrete (PCC) overlays have been used with great success in many locations  

E-Print Network [OSTI]

accelerated pavement testing on bonded concrete overlay pavements to be constructed at the Pavement Research testing; evaluate the structural bearing capacity of the concrete overlay pavement structures[ ]May 2014 PROBLEM Portland cement concrete (PCC) overlays have been used with great success

Harms, Kyle E.

429

Disk-shaped Compact Tension Test for Plain Concrete A. Amirkhanian1  

E-Print Network [OSTI]

Disk-shaped Compact Tension Test for Plain Concrete A. Amirkhanian1 , D. Spring1 , J. Roesler1 , K cracking prediction of concrete pavement systems. The single-edge notched beam test has been used energy in asphalt concrete using the disk-shaped compact tension (DCT) test. The benefit of this specimen

Paulino, Glaucio H.

430

Edinburgh Research Explorer The Dalmarnock Fire Tests on a Cast Insitu Concrete Structure  

E-Print Network [OSTI]

Edinburgh Research Explorer The Dalmarnock Fire Tests on a Cast Insitu Concrete Structure Citation Fire Tests on a Cast Insitu Concrete Structure'. in Proceedings of the international Workshop Fire THE DALMARNOCK FIRE TESTS ON A CAST INSITU CONCRETE STRUCTURE Susan Deeny PhD Student University of Edinburgh, UK

Millar, Andrew J.

431

A testing technique for concrete under confinement at high rates of strain P. Forquin1,  

E-Print Network [OSTI]

1 A testing technique for concrete under confinement at high rates of strain P. Forquin1, , F://lmsX.polytechnique.fr/LMSX/ Abstract: A testing device is presented for the experimental study of dynamic compaction of concrete under numerical simulations of tests involving a set of 4 different concrete-like behaviours and different

432

FRP Dowels for Concrete Pavements Darren Eddie, Junior Structural Engineer, Reid Crowther & Partners;  

E-Print Network [OSTI]

testing ofGFRP and steel dowels using a model of a concrete pavement slab joint subjected to static= L FRP Dowels for Concrete Pavements By Darren Eddie, Junior Structural Engineer, Reid Crowther - Introduction Joints are used in concrete pavements in order to control cracking due to thermal

433

Concrete international /DECEMBER 2004 33 BY EDWARD J. GARBOCZI, JEFFREY W. BULLARD, AND DALE P. BENTZ  

E-Print Network [OSTI]

with virtual testing will result in tremendous time and cost savings to the cement and concrete industry of the National Institute of Standards and Technology (NIST)/Industry Virtual Cement and Concrete Testing's work follows, along with a general overview of what virtual testing of cement and concrete actually

Bentz, Dale P.

434

Application of digital image correlation to size effect tests of concrete S. Yasir Alam & A. Loukili  

E-Print Network [OSTI]

Application of digital image correlation to size effect tests of concrete S. Yasir Alam & A beams. Three point bending tests are performed on scaled concrete beams in accordance with RILEM rec, reactor containments, bridges) and of labora- tory tests. In concrete structures, fracture is generally

Paris-Sud XI, Université de

435

Laboratory Testing to Address the Potential for Damaging Hydraulic Pressure in the Concrete Tie Rail Seat  

E-Print Network [OSTI]

Laboratory Testing to Address the Potential for Damaging Hydraulic Pressure in the Concrete Tie of different combinations of concrete ties and fastening system components to RSD (1). TTC's tests resulted) is the most critical problem with concrete tie performance on North American freight railroads. Currently

Illinois at Urbana-Champaign, University of

436

Fracture Behavior and Properties of Functionally Graded Fiber-Reinforced Concrete  

E-Print Network [OSTI]

the structural benefits of functionally graded concrete materials (FGCM) for rigid pavements by testing (testing and modeling) demonstrates the viability of FGCM for designing layered concrete pavements systemFracture Behavior and Properties of Functionally Graded Fiber-Reinforced Concrete Jeffery Roesler

Paulino, Glaucio H.

437

Monitoring of the creep and the relaxation hhh behaviour of concrete since setting time, hh hhhhhhhh  

E-Print Network [OSTI]

experimental tests on the same ordinary concrete in order to investigate the early age mechanical behaviour in the laboratory of civil engineering at ULB for testing concrete in tension or in compression since setting time), France (2012)" #12;2 2. Test setup 2.1. Tested concrete description The mixture proportions

Paris-Sud XI, Université de

438

Keynote Paper, Shah, Page 1/13 HEALTH MONITORING OF EARLY AGE CONCRETE  

E-Print Network [OSTI]

relationship to the actual concrete in the structure. This calls for nondestructive test methods that offer potential for the application of nondestructive testing of concrete under field conditions. The resultsKeynote Paper, Shah, Page 1/13 HEALTH MONITORING OF EARLY AGE CONCRETE Thomas Voigt, Zhihui Sun

439

IDENTIFICATION OF INHOMOGENEOUS CONCRETE COVER BY NON-CONTACT ULTRASONIC METHOD  

E-Print Network [OSTI]

their irreversible damage. Various methods are available today for testing concrete structures. Among themIDENTIFICATION OF INHOMOGENEOUS CONCRETE COVER BY NON- CONTACT ULTRASONIC METHOD B.Piwakowski1 , Q Science, Kazimierz Wielki University, Bydgoszcz, Poland bogdan.piwakowski@ec-lille.fr ABSTRACT Concrete

Boyer, Edmond

440

Non Destructive Testing of Concrete: Transfer from Laboratory to On-site Measurement  

E-Print Network [OSTI]

Non Destructive Testing of Concrete: Transfer from Laboratory to On-site Measurement Vincent Vincent.garnier@univ-amu.fr ABSTRACT The evaluation of mechanical and chemical properties of concrete laws from the laboratory between non-destructive measurements and characteristics of the concrete

Boyer, Edmond

Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Virtual Cement and Concrete Testing Laboratory Educational Version 2.0 User Guide  

E-Print Network [OSTI]

1 Virtual Cement and Concrete Testing Laboratory Educational Version 2.0 User Guide Jeffrey W of the Virtual Cement and Concrete Testing Laboratory (VCCTL) software, version 2.0. Using the VCCTL software, cement hydration, computer modeling, concrete testing, microstructure, simulation, virtual laboratory

Magee, Joseph W.

442

Effect of Electric Arc Furnace Bag House Dust on Concrete Durability Researcher: Fahad Al-Mutlaq  

E-Print Network [OSTI]

Effect of Electric Arc Furnace Bag House Dust on Concrete Durability Researcher: Fahad Al billions of dollars annually. While steel is normally protected from corrosion in concrete by a passive of the effects of addition of Bag House Dust (BHD) on aspects of concrete durability. BHD is a fine powder

Birmingham, University of

443

EIS-0407: Amended Notice of Intent to Modify the Scope of the...  

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

Notice of Intent to Modify the Scope of the Environmental Impact Statement Abengoa Refinery Project near Hugoton, Kansas Amended Notice of Intent to Modify the Scope of the...

444

E-Print Network 3.0 - amending regulation ec Sample Search Results  

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

this regulation amendment... .003. NAME OF ... Source: Boreman, Glenn D. - School of Optics (CREOLE), University of Central Florida; Wu, Shin-Tson - School of Optics (CREOLE),...

445

Microsoft Word - Agreement to amend 1-13-09 electronic signature...  

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

to implement the amendment and avoid, if possible, any unnecessary interruption of smelter operations, especially given the difficult economic times and potential loss of...

446

E-Print Network 3.0 - amendments Sample Search Results  

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

OF THE ASSOCIATION OF ALUMNI As Adopted October 27, 2010 Guidelines... for Election of Officers and Committee Members and for Constitutional Amendments 1. All-Media Voting....

447

E-Print Network 3.0 - amendments hot topic Sample Search Results  

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

4 dated November 15, 2010... , and Amendment 5 dated April 5, 2011 (collectively the "Lease") ... Source: Rebaza, Jorge - Department of Mathematics, Missouri State University...

448

E-Print Network 3.0 - amended soil microcosms Sample Search Results  

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

by Explorit Topic List Advanced Search Sample search results for: amended soil microcosms Page: << < 1 2 3 4 5 > >> 1 Biotechnology Letters 22: 915919, 2000. 2000 Kluwer Academic...

449

File:App Commercial Leases and Easements or Amendment or Residential...  

Open Energy Info (EERE)

App Commercial Leases and Easements or Amendment or Residential Coastal Easements HOA.pdf Jump to: navigation, search File File history File usage Metadata File:App Commercial...

450

INTERIM REPORT ON CONCRETE DEGRADATION MECHANISMS AND ONLINE MONITORING TECHNIQUES  

SciTech Connect (OSTI)

The existing fleets of nuclear power plants in the United States have initial operating licenses of 40 years, though most these plants have applied for and received license extensions. As plant structures, systems, and components age, their useful lifeconsidering both structural integrity and performanceis reduced as a result of deterioration of the materials. The online monitoring of concrete structure conducted under the Advanced Instrumentation, Information, and Control Technologies Pathway of the Light Water Reactor Sustainability program at Idaho National Laboratory will develop and demonstrate concrete structures health monitoring capabilities. Assessment and management of aging concrete structures in nuclear plants require a more systematic approach than simple reliance on existing code margins of safety. Therefore, the structural health monitoring is required to produce actionable information regarding structural integrity that supports operational and maintenance decisions. Through this research project, several national laboratories and Vanderbilt University proposes to develop a framework of research activities for the health monitoring of nuclear power plant concrete structures that includes integration of four elementsdamage modeling, monitoring, data analytics, and uncertainty quantification. This report briefly discusses available techniques and ongoing challenges in each of the four elements of the proposed framework with emphasis on degradation mechanisms and online monitoring techniques.

Mahadevan, Sankaran; Agarwal, Vivek; Neal, Kyle; Kosson, David; Adams, Douglas

2014-09-01T23:59:59.000Z

451

Concrete Company Aims Higher for More Wind Energy  

Broader source: Energy.gov [DOE]

Today, most steel towers that support utility-scale turbines stand about 80 meters tall, but the Tindall Corporation wants to go higher using precast concrete to raise turbines over 100 meters in height to capture stronger, steadier winds - and more energy.

452

Field Testing for Understanding In Situ Concrete Crosstie  

E-Print Network [OSTI]

Slide 7 · Linear Potentiometer Fixture ­ Welded steel frame ­ Designed for flexible positioning ­ BoltedField Testing for Understanding In Situ Concrete Crosstie and Fastener Behavior Justin Grassé, David Lange 2012 Joint Rail Conference Philadelphia, PA 17-19 April 2012 #12;Field Testing

Barkan, Christopher P.L.

453

Concrete Strength Data 1 0.45 2954  

E-Print Network [OSTI]

.5 2739 7 0.55 2652 8 0.55 2607 9 0.55 2583 0 #12;Response: Concrete Compressive Strength Summary of Fit.963004 26.75521 2765.889 9 Lack of Fit Source Lack of Fit Pure Error Total Error DF 1 6 7 Sum of Squares 672>F Press 8682.2673817 x 2 #12;

Vardeman, Stephen B.

454

Pentek concrete scabbling system: Baseline report; Greenbook (chapter)  

SciTech Connect (OSTI)

The Pentek scabbling technology was tested at Florida International University (FIU) and is being evaluated as a baseline technology. This report evaluates it for safety and health issues. It is a commercially available technology and has been used for various projects at locations throughout the country. The Pentek concrete scabbling system consisted of the MOOSE, SQUIRREL-I, and SQUIRREL-III scabblers. The scabblers are designed to scarify concrete floors and slabs using cross-section, tungsten carbide tipped bits. The bits are designed to remove concrete in 318 inch increments. The bits are either 9-tooth or demolition type. The scabblers are used with a vacuum system designed to collect and filter the concrete dust and contamination that is removed from the surface. The safety and health evaluation conducted during the testing demonstration focused on two main areas of exposure: dust and noise. Dust exposure was minimal, but noise exposure was significant. Further testing for each of these exposures is recommended. Because of the outdoor environment where the testing demonstration took place, results may be inaccurate. It is feasible that the dust and noise levels will be higher in an enclosed operating environment. Other areas of concern were arm-hand vibration, whole-body vibration, ergonomics, heat stress, tripping hazards, electrical hazards, machine guarding, and lockout/tagout.

NONE

1997-07-31T23:59:59.000Z

455

COMPOSITE PORTLAND CEMENT CONCRETE PAVEMENTS (Tollway) Effective: January 30, 2012  

E-Print Network [OSTI]

COMPOSITE PORTLAND CEMENT CONCRETE PAVEMENTS (Tollway) Effective: January 30, 2012 Revised: May 8 for special applications to composite pavements as shown and described on the Drawings and in this Special as required; 5. Constructing the composite pavement on a prepared subgrade, or subbase, without forms. 6

456

Center for By-Products Utilization Sustainable Concrete with  

E-Print Network [OSTI]

landfilling them but also leads to the reduction of the the environmental pollution. #12;Center for ByCenter for By-Products Utilization Sustainable Concrete with Industrial and Post-Consumer By Construction Materials and Technologies, Ancona, Italy, June 2010 #12;Center for By-Products Utilization Why

Saldin, Dilano

457

Light weight concrete: 226 K contents and dose  

E-Print Network [OSTI]

gamma spectrometry. All the radionuclide contents except those for the PFA autoclave aerated concrete been determined using high- resolution gamma spectrometry. The results have been compared with those1 for construction materials for dwellings. The gamma-dose rate for an indoor environment

Yu, K.N.

458

Crack-based analysis of concrete with brittle reinforcement  

E-Print Network [OSTI]

{ FaberMaunsell Ltd; University of Cambridge Brittle reinforcement (such as fibre-reinforced plastic to the surround- ing concrete, at a crack surface sL=sR s on the left/right side of a crack u increase in unbonded

Burgoyne, Chris

459

MICROWAVE-BASED NDE OF FRP-JACKETED CONCRETE STRUCTURES  

E-Print Network [OSTI]

MICROWAVE-BASED NDE OF FRP-JACKETED CONCRETE STRUCTURES Yoo Jin Kim, Franco De Flaviis University are presented in this paper. KEY WORDS: Microwave, Non-Destructive Evaluation (NDE), FRP Jacket, Imaging Technol not be visually observed. Various nondestructive evaluation (NDE) techniques have been studied to detect cracks

De Flaviis, Franco

460

1 INTRODUCTION Concrete bridge decks are high-performance  

E-Print Network [OSTI]

conditions of reinforced concrete bridge decks with multiple non-destructive evaluation (NDE) techniques activities. The present state-of-the-art is that multiple NDE techniques are available, but that the accuracy and reliability of the methods are not guaranteed. NDE techniques generally employ electromagnetic

Huston, Dryver R.

Note: This page contains sample records for the topic "amendment concrete paac" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Research in nondestructive evaluation techniques for nuclear reactor concrete structures  

SciTech Connect (OSTI)

The purpose of the Materials Aging and Degradation (MAaD) Pathway of the Department of Energy's Light Water Reactor Sustainability (LWRS) Program is to develop the scientific basis for understanding and predicting longterm environmental degradation behavior of material in nuclear power plants and to provide data and methods to assess the performance of systems, structures, and components (SSCs) essential to safe and sustained nuclear power plant operations. The understanding of aging-related phenomena and their impacts on SSCs is expected to be a significant issue for any nuclear power plant planning for long-term operations (i.e. service beyond the initial license renewal period). Management of those phenomena and their impacts during long-term operations can be better enable by improved methods and techniques for detection, monitoring, and prediction of SSC degradation. The MAaD Pathway R and D Roadmap for Concrete, 'Light Water Reactor Sustainability Nondestructive Evaluation for Concrete Research and Development Roadmap', focused initial research efforts on understanding the recent concrete issues at nuclear power plants and identifying the availability of concrete samples for NDE techniques evaluation and testing. [1] An overview of the research performed by ORNL in these two areas is presented here.

Clayton, Dwight; Smith, Cyrus [Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831 (United States)

2014-02-18T23:59:59.000Z

462

ASSESSMENT OF RELEASE RATES FOR RADIONUCLIDES IN ACTIVATED CONCRETE.  

SciTech Connect (OSTI)

The Maine Yankee (MY) nuclear power plant is undergoing the process of decontamination and decommissioning (D&D). Part of the process requires analyses that demonstrate that any radioactivity that remains after D&D will not cause exposure to radioactive contaminants to exceed acceptable limits. This requires knowledge of the distribution of radionuclides in the remaining material and their potential release mechanisms from the material to the contacting groundwater. In this study the concern involves radionuclide contamination in activated concrete in the ICI Sump below the containment building. Figures 1-3 are schematic representations of the ICI Sump. Figure 2 and 3 contain the relevant dimensions needed for the analysis. The key features of Figures 2 and 3 are the 3/8-inch carbon steel liner that isolates the activated concrete from the pit and the concrete wall, which is between 7 feet and 7 feet 2 inches thick. During operations, a small neutron flux from the reactor activated the carbon steel liner and the concrete outside the liner. Current MY plans call for filling the ICI sump with compacted sand.

SULLIVAN,T.M.

2003-08-23T23:59:59.000Z

463

Structural Engineering Seminar Series Ultra-High Performance Concrete Construction  

E-Print Network [OSTI]

performance and resistance against environmental degradation. UHPC is defined as a concrete fiber composite for Our Future Infrastructure? by Kay Wille, PhD Assistant Professor, Civil and Environmental Engineering and conference proceedings. It has been used in various forms in structural and architectural elements, as a bond

Kamat, Vineet R.

464

An attempt to validate the ultra-accelerated microbar and the concrete performance test with the degree of AAR-induced damage observed in concrete structures  

SciTech Connect (OSTI)

There is little knowledge about the relation between AAR-induced damage observed in structures and the expansion potential obtained with accelerated tests. In this study, aggregates used in structures damaged by AAR were tested with the microbar test (MBT/AFNOR XP 18-594) and the concrete performance test (CPT/AFNOR P18-454). After the tests, the samples were examined using optical and scanning electron microscopy. Based on the results, the significance of the microbar test has to be examined very critically. The agreement of measured expansion, reacted rock types and the composition of the reaction products between the on-site concrete and the reproduced concrete subjected to the CPT clearly indicates that the reaction mechanisms in the structure and in the concrete performance test are comparable. As such, the concrete performance test seems to be an appropriate tool to test the potential reactivity of specific concrete mixtures.

Leemann, Andreas, E-mail: andreas.leemann@empa.ch [Empa, Dbendorf (Switzerland)] [Empa, Dbendorf (Switzerland); Merz, Christine [Holcim (Schweiz) AG, Wrenlingen (Switzerland)] [Holcim (Schweiz) AG, Wrenlingen (Switzerland)

2013-07-15T23:59:59.000Z

465

Numerical homogenization of concrete microstructures without explicit meshes  

SciTech Connect (OSTI)

Life management of electric hydro or nuclear power plants requires to estimate long-term concrete properties on facilities, for obvious safety and serviceability reasons. Decades-old structures are foreseen to be operational for several more decades. As a large number of different concrete formulations are found in EDF facilities, empirical models based on many experiments cannot be an option for a large fleet of power plant buildings. To build predictive models, homogenization techniques offer an appealing alternative. To properly upscale creep, especially at long term, a rather precise description of the microstructure is required. However, the complexity of the morphology of concrete poses several challenges. In particular, concrete is formulated to maximize the packing density of the granular skeleton, leading to aggregates spanning several length scales with small inter particle spacings. Thus, explicit meshing of realistic concrete microstructures is either out of reach of current meshing algorithms or would produce a number of degrees of freedom far higher than the current generic FEM codes capabilities. This paper proposes a method to deal with complex matrix-inclusions microstructures such as the ones encountered at the mortar or concrete scales, without explicitly meshing them. The microstructure is superimposed to an independent mesh, which is a regular Cartesian grid. This inevitably yields so called 'gray elements', spanning across multiple phases. As the reliability of the estimate of the effective properties highly depends on the behavior affected to these gray elements, special attention is paid to them. As far as the question of the solvers is concerned, generic FEM codes are found to lack efficiency: they cannot reach high enough levels of discretization with classical free meshes, and they do not take advantage of the regular structure of the mesh. Thus, a specific finite differences/finite volumes solver has been developed. At first, generic off-the-shelf linear system solvers were used. To further improve the efficiency in terms of memory requirements, specific variants of the preconditioned conjugate gradient were implemented. This allowed to homogenize the conductivity of a concrete-like microstructure using more than 10{sup 9} degrees of freedom on a rather common hardware for 2010 (a PC embedding 48 GB of RAM). Taking benefit of the properties of the regular Cartesian grid we have also investigated a multi-level method to improve the CPU efficiency of the code.

Sanahuja, Julien, E-mail: julien.sanahuja@edf.fr; Toulemonde, Charles, E-mail: charles.toulemonde@edf.fr

2011-12-15T23:59:59.000Z

466

HYDRAULIC AND PHYSICAL PROPERTIES OF SALTSTONE GROUTS AND VAULT CONCRETES  

SciTech Connect (OSTI)

The Saltstone Disposal Facility (SDF), located in the Z-Area of the Savannah River Site (SRS), is used for the disposal of low-level radioactive salt solution. The SDF currently contains two vaults: Vault 1 (6 cells) and Vault 4 (12 cells). Additional disposal cells are currently in the design phase. The individual cells of the saltstone facility are filled with saltstone. Saltstone is produced by mixing the low-level radioactive salt solution, with blast furnace slag, fly ash, and cement (dry premix) to form a dense, micro-porous, monolithic, low-level radioactive waste form. The saltstone is pumped into the disposal cells where it subsequently solidifies. Significant effort has been undertaken to accurately model the movement of water and contaminants through the facility. Key to this effort is an accurate understanding of the hydraulic and physical properties of the solidified saltstone. To date, limited testing has been conducted to characterize the saltstone. The primary focus of this task was to estimate the hydraulic and physical properties of three types of saltstone and two vault concretes. The saltstone formulations included saltstone premix batched with (1) Deliquification, Dissolution, and Adjustment (DDA) salt simulant (w/pm 0.60), (2) Actinide Removal Process (ARP)/Modular Caustic Side Solvent Extraction Unit (MCU) salt simulant (w/pm 0.60), and (3) Salt Waste Processing Facility (SWPF) salt simulant (w/pm 0.60). The vault concrete formulations tested included the Vault 1/4 concrete and two variations of the Vault 2 concrete (Mix 1 and Mix 2). Wet properties measured for the saltstone formulations included yield stress, plastic viscosity, wet unit weight, bleed water volume, gel time, set time, and heat of hydration. Hydraulic and physical properties measured on the cured saltstone and concrete samples included saturated hydraulic conductivity, moisture retention, compressive strength, porosity, particle density, and dry bulk density. These properties were determined following a minimum 28 day curing period. Additional testing of the three saltstone formulations was conducted following a minimum 90 day curing period. The compressive strength of each saltstone and concrete material was measured at approximately 14, 28, 56, and 90 days. Recommended hydraulic property values for each saltstone grout and the vault concretes are provided. The hydraulic properties provided for each material include the saturated hydraulic conductivity, dry bulk density, particle density, and porosity. In addition, water retention data are presented for each material along with the van Genuchten transport parameters as determined using the RETC code.

Dixon, K; John Harbour, J; Mark Phifer, M

2008-11-25T23:59:59.000Z

467

The concrete road : development and present status of design and construction  

E-Print Network [OSTI]

of Temperature and Trafiic 21 2. Impact 2? 3. Fatigue of Concrete C. Design of Concrete Pavements 44 1. Cross-Sections of Concrete Slabs 45 2. Stresses in Concrete Pavements - Thick ness of Slab 5o 3. Defects in Concrete Pavement Slabs - Con trol... 36 * 12. Static Loading Curve. Fatigue Test Method .. 38 " 13. Fatigue Endurance -^irnit of Cement Mortar Beams 39 * 14. Effect of prolonged Rest Period 4o 15. Effect of Increasing the Load during Fatigue Action 42 16. Typical Cross...

Puell, Heinz Werner

1935-01-01T23:59:59.000Z

468

Soranakom, C., Bakhshi M. , and Mobasher, B. " Role of Alkali Resistant Glass Fibers in Suppression of Restrained Shrinkage Cracking of Concrete Materials," 15th International Glass Fibre Reinforced Concrete Association  

E-Print Network [OSTI]

of Restrained Shrinkage Cracking of Concrete Materials," 15th International Glass Fibre Reinforced Concrete Fibers in Suppression of Restrained Shrinkage Cracking of Concrete Materials Chote Soranakom1 , Mehdi resistance of concrete subjected to drying shrinkage is studied by experimental and analytical approaches

Mobasher, Barzin

469

Finite Element Stress Computations Applied to Images of Damaged Concrete: A Possible New Diagnostic Tool for Concrete Petrography  

E-Print Network [OSTI]

Reprinted from the Twenty-Third International Conference on Cement Microscopy. Proceedings. International in the assessment of degradation mechanisms. #12;INTRODUCTION There is a recurring problem in the field of concrete and environmental history can help guide the petrographer's approach to the problem. For example, if the temperature

Bentz, Dale P.

470

Eligibility Conditions for Project Associates - Amendments to the Management's proposals concerning project associates approved by the Finance Committee and the Council in June 1994 - Amendment to Document CERN/2048 (Annex)  

E-Print Network [OSTI]

Eligibility Conditions for Project Associates - Amendments to the Management's proposals concerning project associates approved by the Finance Committee and the Council in June 1994 - Amendment to Document CERN/2048 (Annex)

1996-01-01T23:59:59.000Z

471

HOSNY, AMR. Behavior of Concrete Members Containing Lightweight Synthetic Particles. (Under the direction of Dr. Sami Rizkalla.)  

E-Print Network [OSTI]

ABSTRACT HOSNY, AMR. Behavior of Concrete Members Containing Lightweight Synthetic Particles of Lightweight Synthetic Particles (LSP) to normal weight concrete leads to reduction of the unit weight of the concrete by 10 to 20 percent resulting in concrete with unit weights ranging between 120 and 130 lb/ft3

472

Mertol, Rizkalla, Zia and Mirmiran 2006 CBC FLEXURAL DESIGN USING HIGH-STRENGTH CONCRETE UP TO 20 KSI  

E-Print Network [OSTI]

Mertol, Rizkalla, Zia and Mirmiran 2006 CBC 1 FLEXURAL DESIGN USING HIGH-STRENGTH CONCRETE UP TO 20 findings of the fundamental characteristics of high-strength concrete for the flexural design of bridge Design Specifications to extend the use of concrete strength up to 18 ksi. A total of 15 plain concrete

473

SHORT-TERM EFFECTS OF SOIL AMENDMENT WITH TREE LEGUME BIOMASS ON CARBON AND NITROGEN  

E-Print Network [OSTI]

SHORT-TERM EFFECTS OF SOIL AMENDMENT WITH TREE LEGUME BIOMASS ON CARBON AND NITROGEN IN PARTICLE-to-N ratio of the added plant material seems to control the eects of soil amendment with tree legume biomass to the total quantity of C and N pre- sent. Physical fractionation of SOM can help to identify more active

Lehmann, Johannes

474

Environmental Assessment/Regulatory Impact Review AMENDMENT 45 TO THE FISHERY MANAGEMENT PLAN  

E-Print Network [OSTI]

Environmental Assessment/Regulatory Impact Review FOR AMENDMENT 45 TO THE FISHERY MANAGEMENT PLAN it would conflict with the Bering Sea non-roe season. At its January 1996 meeting, the Council considered/C Regulatory Areas must be made. Amendment 19 to the FMP, implemented as a measure to prevent roe stripping

475

The 1994 Net Ban Constitutional Amendment: a case study of marine fisheries management in Florida  

E-Print Network [OSTI]

On November 8, 1994 the Florida electorate voted 2,876,091 to 1,135,110 in favor of proposed amendment #3 to the state constitution. The amendment effectively reallocated the state's nearshore fisheries to predominantly recreational "hook and line...

Grimes, Shepherd Russell

1996-01-01T23:59:59.000Z

476

EIS-0470: EPA Amended Notice of Adoption | 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:Year in Review: TopEnergy DOEDealingVehicle1: Draft6: RecordRecord of Decision EIS-0464:Amended

477

Amendment No. 1 (August 5, 2010) | Department of Energy  

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

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists' ResearchThe OfficeUtility Fed.9-0s) All OtherDepartment ofThis tipDepartmentAmendment

478

EIS-0222: Amended Record of Decision | 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:YearRound-UpHeat Pump Models |Conduct,Final9:Department ofofGNARecord ofEnergy-SA-01:2: Amended

479

EIS-0277: Amendment to Record of Decision | 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:YearRound-UpHeat Pump Models |Conduct,Final9:DepartmentExtensionRecord ofDepartment ofAmendment to

480

AME:NDMENT OF SOLICITATION/MODIFICATION OF CONTRACT  

National Nuclear Security Administration (NNSA)

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481

EIS-0380: Amended Record of Decision | Department of Energy  

Energy Savers [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 Office of Inspector General Office of Audit ServicesMirantPartners,of Energy 50-S1:376: Final380: Amended Record of

482

The jet impingement phase of molten core-concrete interactions  

SciTech Connect (OSTI)

Scoping calculations have been carried out demonstrating that a significant and abrupt reduction in the corium temperature may be realized when molten corium drains as a jet from a localized breach in the RPV lower head to impinge upon the concrete basemat. The temperature decrease may range from a value of approx.170 K (approx.140 K) for limestone (basaltic) aggregate concrete to a value approaching the initial corium superheat depending upon whether the forced convection impingement heat flux is assumed to be controlled by either thermal conduction across a slag film layer or the temperature boundary condition represented by a corium crust. The magnitude of the temperature reduction remains significant as the initial corium temperature, impinging corium mass, and initial localized breach size are varied over their range of potential values.

Sienicki, J.J.; Spencer, B.W.

1986-01-01T23:59:59.000Z

483

Development and Construction of Low-Cracking High-Performance Concrete (LC-HPC) Bridge Decks: Free Shrinkage, Mixture Optimization, and Concrete Production  

E-Print Network [OSTI]

of concrete mixtures in the laboratory tested in accordance with ASTM C 157. The evaluation of shrinkage properties includes a total of 56 individual concrete batches. Both a high-absorption (2.5 to 3.0%) coarse aggregate and a low-absorption (less than 0...

Lindquist, Will David

2008-01-01T23:59:59.000Z

484

Application of Digital Image Correlation to reinforced concrete fracture  

E-Print Network [OSTI]

mechanics models to reinforced concrete structures where a stitching action prevents the crack face opening and controls the crack growth by increasing the energy demand for the crack advancement (Carpinteri and Massabo, 1997). Fracture mechanics is a... ., & Take, W. A. (2002). GeoPIV: Particle Image Velocimetry (PIV) software for use in geotechnical testing. Cambridge University Engineering Department Technical Report, CUED/D-Soil/TR322. ...

Fayyad, Tahreer M.; Lees, Janet M.

2014-06-27T23:59:59.000Z

485

Contaminated concrete: Occurrence and emerging technologies for DOE decontamination  

SciTech Connect (OSTI)

The goals of the Facility Deactivation, Decommissioning, and Material Disposition Focus Area, sponsored by the US Department of Energy (DOE) Office of Technology Development, are to select, demonstrate, test, and evaluate an integrated set of technologies tailored to provide a complete solution to specific problems posed by deactivation, decontamination, and decommissioning, (D&D). In response to these goals, technical task plan (TTP) OR152002, entitled Accelerated Testing of Concrete Decontamination Methods, was submitted by Oak Ridge National Laboratory. This report describes the results from the initial project tasks, which focused on the nature and extent of contaminated concrete, emerging candidate technologies, and matching of emerging technologies to concrete problems. Existing information was used to describe the nature and extent of contamination (technology logic diagrams, data bases, and the open literature). To supplement this information, personnel at various DOE sites were interviewed, providing a broad perspective of concrete contamination. Because characterization is in the initial stage at many sites, complete information is not available. Assimilation of available information into one location is helpful in identifying potential areas of concern in the future. The most frequently occurring radiological contaminants within the DOE complex are {sup 137}Cs, {sup 238}U (and it daughters), and {sup 60}Co, followed closely by {sup 90}Sr and tritium, which account for {minus}30% of the total occurrence. Twenty-four percent of the contaminants were listed as unknown, indicating a lack of characterization information, and 24% were listed as other contaminants (over 100 isotopes) with less than 1% occurrence per isotope.

Dickerson, K.S.; Wilson-Nichols, M.J. [Oak Ridge National Lab., Grand Junction, CO (United States); Morris, M.I. [Oak Ridge National Lab., TN (United States)

1995-08-01T23:59:59.000Z

486

FRPs in Reinforced and Prestressed Concrete Applications: Moving Forward  

E-Print Network [OSTI]

and the rotation capacity requirements. The principle was demonstrated by testing in flexure a number of small scale pretensioned concrete beams with aramid FRP tendons [48]. Beams with fully bonded, unbonded or partially bonded tendons were considered... , as the tendons are external to the structure, the monitoring and testing of the tendons is greatly facilitated. Aramid fibre ropes have been used in both new construction and also to upgrade existing structures [54]. A study by Leung considered beams...

Lees, Janet M.

2001-08-29T23:59:59.000Z

487

Rutting and drainage design methodology for a concrete block pavement  

E-Print Network [OSTI]

. . . . 2 Experience based design chart used in Denmark. . . . . 10 3 Experience based design chart used in South Africa. . . . . . . . . . . . . . 4 Marais' design curve based on Westergaard's slab theory. . . . . 12 5 CCA design chart used in Great... 150 Fi 3 ? Ex erience based desi n chart used in South Africa. ' ~ Modifications Based On Existing Design Procedures For Pavements One of the first design procedures for concrete block pavements was developed by Marais in 1967 and based on rigid...

Poduska, Daryl Jason

1998-01-01T23:59:59.000Z

488

Evaluation of a stack: A concrete chimney with brick liner  

SciTech Connect (OSTI)

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.

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

1995-12-31T23:59:59.000Z

489

Preliminary study of neutron absorption by concrete with boron carbide addition  

SciTech Connect (OSTI)

Concrete has become a conventional material in construction of nuclear reactor due to its properties like safety and low cost. Boron carbide was added as additives in the concrete construction as it has a good neutron absorption property. The sample preparation for concrete was produced with different weight percent of boron carbide powder content. The neutron absorption rate of these samples was determined by using a fast neutron source of Americium-241/Be (Am-Be 241) and detection with a portable backscattering neutron detector. Concrete with 20 wt % of boron carbide shows the lowest count of neutron transmitted and this indicates the most neutrons have been absorbed by the concrete. Higher boron carbide content may affect the concrete strength and other properties.

Abdullah, Yusof, E-mail: yusofabd@nuclearmalaysia.gov.my; Yusof, Mohd Reusmaazran; Zali, Nurazila Mat; Ahmad, Megat Harun Al Rashid Megat; Yazid, Hafizal [Malaysian Nuclear Agency, Bangi, 43000 Kajang, Selangor (Malaysia); Ariffin, Fatin Nabilah Tajul; Ahmad, Sahrim [School of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM, Bangi, Selangor (Malaysia); Hamid, Roszilah [Department of Civil and Structural Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM, Bangi, Selangor (Malaysia); Mohamed, Abdul Aziz [College of Engineering, Universiti Tenaga National, Jalan Ikram-Uniten, 43000 Kajang, Selangor (Malaysia)

2014-02-12T23:59:59.000Z

490

Transport of entrained air bubbles in fresh concrete due to pressure variations  

E-Print Network [OSTI]

Alkali (Soluble) on Air Entrainment in Concrete [22]. 31 Figure 11. Figure 12. Effect of Cement Fineness on Air Content of Fresh Concrete [22]. Change in Void Size Distribution on Vibration of Air Entrained Concrete [17]. 32 33 Figure 13. Effect.... Reduction in Water and Sand Contents Made Possible by Various Percentages of Entrained Air Content [21]. 38 Page Figure 16. Relationship of Solubility of Air and Internal Pressure to the Size of an Air Bubble in water at 20 C [14...

Macha, Ravi Kumar

1993-01-01T23:59:59.000Z

491

Energy Efficiency Improvement and Cost Saving Oportunities for the Concrete Industry  

E-Print Network [OSTI]

of energy management: energy audits/assessments, energyto Titan America, energy audits conducted in concrete plantsmanagement programs Energy audit Energy teams Employee

Kermeli, Katerina

2013-01-01T23:59:59.000Z

492

Effect of {gamma}-irradiation on strength of concrete for nuclear-safety structures  

SciTech Connect (OSTI)

Concrete applied for construction of nuclear power plant (NPP) Temelin (Czech Republic) has been exposed to {gamma}-irradiation up to dose 6x10{sup 5} Gy. Depending on the level of irradiation, changes in strength, porous structure and phase composition of the concrete have been studied. It is found that irradiation lowers both the strength of concrete (about 10%) and volume (resp. surface) of porous space. On the other hand, {gamma}-irradiation increases the ratio of calcite, CaCO{sub 3}, in the concrete. Observed effects are discussed with respect to safety of NPPs.

Vodak, F. [Czech Technical University (CVUT), Faculty of Civil Engineering, Prague, Thakurova 7, CZ 166 29 Prague 6 (Czech Republic); Trtik, K. [Czech Technical University (CVUT), Faculty of Civil Engineering, Prague, Thakurova 7, CZ 166 29 Prague 6 (Czech Republic); Sopko, V. [Czech Technical University (CVUT), Faculty of Civil Engineering, Prague, Thakurova 7, CZ 166 29 Prague 6 (Czech Republic); Kapickova, O. [Czech Technical University (CVUT), Faculty of Civil Engineering, Prague, Thakurova 7, CZ 166 29 Prague 6 (Czech Republic); Demo, P. [Czech Technical University (CVUT), Faculty of Civil Engineering, Prague, Thakurova 7, CZ 166 29 Prague 6 (Czech Republic)]. E-mail: demo@fzu.cz

2005-07-01T23:59:59.000Z

493

ERDC/GSLTR-02-4 Rapid Strengthening of Reinforced Concrete  

E-Print Network [OSTI]

of the Army position, unless so designated by other authorized documents. PRINTED ON RECYCLED PAPER #12;ERDC.................................................................................................17 5--FRP/Concrete Connection Tests.......................................................................18 Testing Procedure

Bank, Lawrence C.

494

Energy Efficiency Improvement and Cost Saving Oportunities for the Concrete Industry  

SciTech Connect (OSTI)

The U.S. concrete industry is the main consumer of U.S.-produced cement. The manufacturing of ready mixed concrete accounts for more than 75% of the U.S. concrete production following the manufacturing of precast concrete and masonry units. The most significant expenditure is the cost of materials accounting for more than 50% of total concrete production costs - cement only accounts for nearly 24%. In 2009, energy costs of the U.S. concrete industry were over $610 million. Hence, energy efficiency improvements along with efficient use of materials without negatively affecting product quality and yield, especially in times of increased fuel and material costs, can significantly reduce production costs and increase competitiveness. The Energy Guide starts with an overview of the U.S. concrete industrys structure and energy use, a description of the various manufacturing processes, and identification of the major energy consuming areas in the different industry segments. This is followed by a description of general and process related energy- and cost-efficiency measures applicable to the concrete industry. Specific energy and cost savings and a typical payback period are included based on literature and case studies, when available. The Energy Guide intends to provide information on cost reduction opportunities to energy and plant managers in the U.S. concrete industry. Every cost saving opportunity should be assessed carefully prior to implementation in individual plants, as the economics and the potential energy and material savings may differ.

Kermeli, Katerina; Worrell, Ernst; Masanet, Eric

2011-12-01T23:59:59.000Z

495

Emerging Energy-efficiency and CO2 Emission-reduction Technologies for Cement and Concrete Production  

E-Print Network [OSTI]

Looping Technology Description: Amine scrubbing carboncarbon capture using absorption technologies Calera process CO 2 sequestration in concrete curing technology Carbonate looping

Hasanbeigi, Ali

2013-01-01T23:59:59.000Z

496

Summary of Uranium Solubility Studies in Concrete Waste Forms and Vadose Zone Environments  

SciTech Connect (OSTI)

One of the methods being considered for safely disposing of Category 3 low-level radioactive wastes is to encase the waste in concrete. Concrete encasement would contain and isolate the waste packages from the hydrologic environment and act as an intrusion barrier. The current plan for waste isolation consists of stacking low-level waste packages on a trench floor, surrounding the stacks with reinforced steel, and encasing these packages in concrete. These concrete-encased waste stacks are expected to vary in size with maximum dimensions of 6.4 m long, 2.7 m wide, and 4 m high. The waste stacks are expected to have a surrounding minimum thickness of 15 cm of concrete encasement. These concrete-encased waste packages are expected to withstand environmental exposure (solar radiation, temperature variations, and precipitation) until an interim soil cover or permanent closure cover is installed and to remain largely intact thereafter. Any failure of concrete encasement may result in water intrusion and consequent mobilization of radionuclides from the waste packages. This report presents the results of investigations elucidating the uranium mineral phases controlling the long-term fate of uranium within concrete waste forms and the solubility of these phases in concrete pore waters and alkaline, circum-neutral vadose zone environments.

Golovich, Elizabeth C.; Wellman, Dawn M.; Serne, R. Jeffrey; Bovaird, Chase C.

2011-09-30T23:59:59.000Z

497

Temperature and pore pressure distribution in a concrete slab during the microwave decontamination process  

SciTech Connect (OSTI)

As an application of microwave engineering, the new technology of concrete decontamination and decommissioning using microwave energy has been recently developed. The temperature and pore pressure within the concrete are studied theoretically in this paper. The heat and mass transfer within the porous concrete, coupled with temperature dependent dielectric property are investigated. The effects of microwave frequency (f), microwave power intensity (Q{sub 0,ave}), concrete porosity ({phi}) on the temperature and pore pressure distributions and their variations are fully discussed. The effects of the variation of complex dielectric permittivity ({epsilon}) and presentation of different steel reinforcements are also illustrated.

Li, W.; Ebadian, M.A. [Florida International Univ., Miami, FL (United States). Dept. of Mechanical Engineering; White, T.L.; Grubb, R.G.; Foster, D. Jr. [Oak Ridge National Lab., TN (United States)

1994-10-01T23:59:59.000Z

498

Modeling of interaction between corrosion-induced concrete cover crack and steel corrosion rate.  

E-Print Network [OSTI]

??Chloride-induced corrosion of steel reinforcement in concrete may cause severe damage to RC structures. Longitudinal cover cracks may form during the rust expansion process. Currently, (more)

Cao, Chong

2012-01-01T23:59:59.000Z

499

Emerging Energy-efficiency and CO2 Emission-reduction Technologies for Cement and Concrete Production  

E-Print Network [OSTI]

processes to reduce the carbon footprint of concrete. Thelargest share of energy and carbon footprint of the concreteproduct have a negative carbon footprint because they are

Hasanbeigi, Ali

2013-01-01T23:59:59.000Z

500

221-U Facility concrete and reinforcing steel evaluations specification for the canyon disposition initiative (CDI)  

SciTech Connect (OSTI)

This describes a test program to establish the in-situ material properties of the reinforced concrete in Building 221-U for comparison to the original design specifications. Field sampling and laboratory testing of concrete and reinforcing steel structural materials in Building 221-U for design verification will be undertaken. Forty seven samples are to be taken from radiologically clean exterior walls of the canyon. Laboratory testing program includes unconfined compressive strength of concrete cores, tensile strength of reinforcing steel, and petrographic examinations of concrete cores taken from walls below existing grade.

Baxter, J.T.

1998-05-28T23:59:59.000Z