E-print Network

Sample records for bleeding pavements

  1. Pavement Testing Machine Under Repair 

    Texas A&M University - TxSpace

    Unknown

    2011-08-17

    Pavement smoothness has become a standard measure of pavement quality. Transportation agencies strive to build and maintain smoother pavements. Smooth roads provide comfort while riding, minimize vehicular wear and tear and increase pavement life. A...

  2. Summary of Concrete Overlays Existing concrete pavement

    Engineering Websites

    Monolithic pavement with new concrete surface Existing asphalt pavement with surface distresses Milled concrete pavement act as one monolithic pavement Bonded Concrete Overlays of Asphalt Pavements -- Overlay and existing concrete pavement act as one monolithic pavement Bonded Concrete Overlays of Composite Pavements

  3. Recommended Practice for Accepting New Concrete Pavement

    Engineering Websites

    Recommended Practice for Accepting New Concrete Pavement Surfaces for Tire/Pavement Noise, Suite 4700 Ames, IA 50010 #12;PP 1-1 CPSCP Recommended Practice for Accepting New Concrete Pavement language when requiring the evaluation of tire/pavement noise for new concrete pavement surfaces

  4. CONCRETE PAVEMENT Reference Manual

    Engineering Websites

    . FHWA COTR: Gina Ahlstrom Project Manager: Dale Harringtonx Technical Advisory Panel: Gary Aamold, Angel that are applicable at the project level, and not at the network level, where pavement management activities function and address such issues as prioritizing and budgeting. Detailed information is presented on seven specific

  5. PAVEMENT RECYCLING Description

    Engineering Websites

    PAVEMENT RECYCLING Description Major reconstruction projects can cause a significant amount recycling can significantly reduce construction time and cost by using the existing road structure as part its suitability for recycling. This involves a combination of both nondestructive testing and limited

  6. Pavement Thickness Design Parameter

    Engineering Websites

    deviation based on AASHTO equations ­ PCC properties · Modulus of Elasticity and Modulus of Rupture ­ HMA Distribution ­ HMA ­ PCC #12;Pavement Thickness Design · Soil Resilient Modulus MR ­ Property of the soil indicating the stiffness or elasticity of the soil under dynamic loading ­ Calculated based on California

  7. Concrete Pavement Preservation

    Engineering Websites

    -based training modules (coming soon) All materials were developed under the guidance of a technical oversight suppliers, contractors, quality control person- nel, and technicians are invited to schedule training based on the new Concrete Pavement Preservation Guide (2nd edition). A 1- to 1½-day workshop and related training

  8. PORTLAND CEMENT CONCRETE PAVEMENT FOR FLEXIBLE OVER RIGID COMPOSITE PAVEMENTS (Tollway)

    Engineering Websites

    PORTLAND CEMENT CONCRETE PAVEMENT FOR FLEXIBLE OVER RIGID COMPOSITE PAVEMENTS (Tollway) Effective portland cement concrete for special applications to composite pavements as shown and described. Constructing the Jointed Plain Ternary Cement Concrete Pavement layer of the composite pavement on a prepared

  9. Pavement Design TTP Orientation Seminar

    Energy Storage, Conversion and Utilization Websites

    Handy, Susan L.

    vehicles ­Freight and freight handling ­Trains and trams ­Aircraft and spacecraft #12;Pavement Types, Traffic Considerations, ReDesign 2010-2050 Sustainability Materials ReUse, Vehicle/Pavement Interaction;Traffic Variables Highways - it's the trucks · Loads · Tire pressures · Speeds · Dynamics (interaction

  10. Adaptive prediction of pavement performance 

    Texas A&M University - TxSpace

    Zulyaminayn, Mohammed

    2002-01-01

    A Visual Basic 6.0[TM] computer program for adjusting family performance curves in making reasonable predictions of individual pavement section performance has been developed under this study. The methodology formulated ...

  11. Sustainable Concrete Pavements: A Manual of Practice

    Engineering Websites

    #12;#12;#12;Sustainable Concrete Pavements: A Manual of Practice January 2012 TECHNICAL EDITORS and Sustainability Group, Applied Pavement Technology) CO-AUTHORS Dr. Tom Van Dam, Principal Engineer, CTLGroup (previously, Program Director, Materials and Sustainability Group, Applied Pavement Technology) Dr. Peter

  12. Guide Specification for Highway Construction Texturing Concrete Pavement for

    Engineering Websites

    /Pavement Noise using Artificial Turf Drag Designation: CPSCP GS 2-11 (rev 3/1/2011) National Concrete Pavement for Highway Construction Texturing Concrete Pavement for Reduced Tire/Pavement Noise using Artificial Turf the concrete has attained its initial set. 3.2. Drag artificial turf longitudinally along the concrete pavement

  13. Guide Specification for Highway Construction Texturing Concrete Pavement for

    Engineering Websites

    Guide Specification for Highway Construction Texturing Concrete Pavement for Reduced Tire/Pavement Noise using Diamond Grinding Designation: CPSCP GS 1-11 (rev 3/1/2011) National Concrete Pavement for Highway Construction Texturing Concrete Pavement for Reduced Tire/Pavement Noise using Diamond Grinding

  14. Patch detection for pavement assessment

    University of Cambridge - Dspace

    Radopoulou, Stefania C.; Brilakis, Ioannis

    2015-03-21

    detected based on its visual characteristics, which are: 1) it consists of a closed contour and 2) its texture is the same with the surrounding intact pavement. The patch is then passed to a kernel tracker in order to trace it in subsequent video frames...

  15. Concrete Pavement Surface Characteristics Program

    Engineering Websites

    : In Vehicle Standardized by SAE J1477 and ISO 5128 Same vehicle used for OBSI and In-Vehicle noise testingConcrete Pavement Surface Characteristics Program (CPSCP) #12;Texture Testing: RoboTex 2.0 Built #12;25 or 50 ft. Noise Testing: Wayside Controlled pass-by (CPB) measures noise "roadside" using test

  16. National Concrete Pavement Technology Center

    Engineering Websites

    site review · Walk through the evaluation process · Walk through the design phase · Attend pre Material and Pavement Testing Mobile Laboratory · With the concurrence of each State DOT, the CP Tech Center's Mobile Concrete Lab will be on-site during construction of the overlay demonstration projects

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

    Texas A&M University - TxSpace

    Poduska, Daryl Jason

    1998-01-01

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

  18. Integrated Materials and Construction Practices (IMCP) for Concrete Pavement

    Engineering Websites

    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

  19. Asphalt Oxidation Kinetics and Pavement Oxidation Modeling 

    Texas A&M University - TxSpace

    Jin, Xin

    2012-07-16

    oxidation model that predicts asphalt oxidation and hardening in pavement under environmental conditions. A number of asphalts were studied in laboratory condition. Based on kinetics data, a fast-rate ? constant-rate asphalt oxidation kinetics model...

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

    Texas A&M University - TxSpace

    Han, Rongbin

    2012-07-16

    in pavements. In this model, oxygen transport and reaction were described mathematically as two interlinked steps: 1) diffusion and/or flow of oxygen from the atmosphere above the pavement into the interconnected air voids in the pavement; and 2) diffusion...

  1. Improving a pavement-watering method on the basis of pavement surface temperature measurements

    CERN Preprints

    Hendel, Martin; Diab, Youssef; Royon, Laurent

    2014-01-01

    Pavement-watering has been studied since the 1990's and is currently considered a promising tool for urban heat island reduction and climate change adaptation. However, possible future water resource availability problems require that water consumption be optimized. Although pavement heat flux can be studied to improve pavement-watering methods (frequency and water consumption), these measurements are costly and require invasive construction work to install appropriate sensors in a dense urban environment. Therefore, we analyzed measurements of pavement surface temperatures in search of alternative information relevant to this goal. It was found that high frequency surface temperature measurements (more than every 5 minutes) made by an infrared camera can provide enough information to optimize the watering frequency. Furthermore, if the water retaining capacity of the studied pavement is known, optimization of total water consumption is possible on the sole basis of surface temperature measurements.

  2. Missouri DOT 1) Briefly summarize your current pavement smoothness requirements.

    Engineering Websites

    radius of curve less than 1000 feet (300 m) and pavement within the super-elevation transition of such curves. (c) Pavement on vertical curves having a "K" value less than 90 and a length less than 500 feet (150 m). (d) Pavement width transitions. (e) Fifty feet (15 m) in direction of travel on each side

  3. Wisconsin DOT 1. Briefly summarize your current pavement smoothness requirements.

    Engineering Websites

    Wisconsin DOT 1. Briefly summarize your current pavement smoothness requirements. We currently-contact profiling equipment. Most PCC pavements are profiled using lightweight profilers when the project is still closed to traffic. Most HMA pavements are profiled using high speed profilers (with the same measuring

  4. Fast Error Estimates For Indirect Measurements: Applications To Pavement Engineering

    Computer Technologies and Information Sciences Websites

    Kreinovich, Vladik

    Fast Error Estimates For Indirect Measurements: Applications To Pavement Engineering Carlos that is difficult to measure directly (e.g., lifetime of a pavement, efficiency of an engine, etc). To estimate y computation time. As an example of this methodology, we give pavement lifetime estimates. This work

  5. An evaluation of the flexible pavement design system FPS19 

    Texas A&M University - TxSpace

    Carmona, Gerardo M

    1998-01-01

    in calculating pavement stiffness coefficients in a multi-layer pavement structure is a major deficiency in that version of FPS. A new version of the flexible pavement design program, FPS19, converts FPS to a linear elastic system using elastic moduli...

  6. Graded Viscoelastic Approach for Modeling Asphalt Concrete Pavements

    Engineering Websites

    Paulino, Glaucio H.

    Graded Viscoelastic Approach for Modeling Asphalt Concrete Pavements Eshan V. Dave'', William G of Illinois at Urb ana-Champaign Abstract. Asphalt concrete pavements exhibit severely graded properties viscoelastic model has been implemented within a numerical framework for the simulation of asphalt pavement

  7. Application of Graded Finite Elements for Asphalt Pavements

    Engineering Websites

    Paulino, Glaucio H.

    Application of Graded Finite Elements for Asphalt Pavements William G. Buttlar1 ; Glaucio H. Paulino2 ; and Seong Hyeok Song3 Abstract: Asphalt paving layers, particularly the surface course, exhibit: Fractures; Asphalt pavements; Finite element method; Material properties. Introduction Modern pavement

  8. Pavement Smoothness for Illinois DOT -Doug Dirks 1. Briefly summarize your current pavement smoothness requirements. See below.

    Engineering Websites

    -Depth HMA pavements, and PCC Pavements are all included in this special provision. http://www.dot.il.gov Standard Specifications for Road and Bridge Construction. http://www.dot.il.gov/desenv/spec2007/div400.pdf, Pavement Technology Engineer. (217) 782-8582 / E-mail: LaDonna.Rowden@illinois.gov #12;

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

    Texas A&M University - TxSpace

    Hoyt, Denise

    2012-07-16

    from chip seal emulsions; and investigation of texture measurement methods for assessing existing pavement macrotexture before a chip seal is placed. The performance graded (PG) asphalt binder specification, which was developed to characterize asphalt...

  10. An evaluation of pavement markings and raised pavement markers at left exit lane drops 

    Texas A&M University - TxSpace

    Lance, Marty Tina

    1994-01-01

    panel on conventional signs, and other signs. Markings include alternative gore area treatments and wider, closely-spaced lane lines. The objective of this paper was to determine if these lane drop markings in conjunction with raised pavement markers...

  11. Ride Quality for Pavement Surfaces 1. DESCRIPTION

    Engineering Websites

    . The Engineer may require QA testing to be performed at times of off-peak traffic flow. Operate the inertial quality of pavement surfaces. 2. EQUIPMENT 2.1. Surface Test Type A. Provide a 10-ft. straightedge Institute. 2.2. Surface Test Type B. Provide a high-speed or lightweight inertial profiler, certified

  12. Pavement Design Introduction to Life Cycle

    Engineering Websites

    1 CE 4401 Pavement Design Introduction to Life Cycle Cost Analysis LCCA Defined (FHWA) "A process for evaluating the total economic worth of a useable project segment by analyzing initial costs and discounted future costs, such as maintenance, reconstruction, rehabilitation, restoring, and resurfacing costs, over

  13. Permeable Pavements, Green Roofs, and Cisterns

    Environmental Management and Restoration Websites

    Hunt, William F.

    ), such as bioretention (see AGW- within low-impact development (LID). 588-05 for more information), permeable LID uses Permeable Pavements, Green Roofs, and Cisterns Stormwater Treatment Practices for Low-Impact Development Stormwater runoff continues to be a concern in communities large and small across North Carolina

  14. Development of methodology for detection of defect locations in pavement profile 

    Texas A&M University - TxSpace

    Rawool, Shubham Shivaji

    2005-08-29

    Pavement smoothness has become a standard measure of pavement quality. Transportation agencies strive to build and maintain smoother pavements. Smooth roads provide comfort while riding, minimize vehicular wear and tear ...

  15. Anisotropic Characterization and Performance Prediction of Chemically and Hydraulically Bounded Pavement Foundations 

    Texas A&M University - TxSpace

    Salehi Ashtiani, Reza

    2010-10-12

    The aggregate base layer is a vital part of the flexible pavement system. Unlike rigid pavements, the base layer provides a substantial contribution to the load bearing capacity in flexible pavements, and this contribution is complex: stress...

  16. Simplified Solution for Periodic Thermal Discontinuities in Asphalt Overlays Bonded to Rigid Pavements

    Mathematics Websites

    Paulino, Glaucio H.

    Simplified Solution for Periodic Thermal Discontinuities in Asphalt Overlays Bonded to Rigid discontinuities distributed in a hot mix asphalt overlay bonded to a rigid pavement, where the length Database subject headings: Thermal stresses; Fracture mechanics; Asphalt pavements; Rigid pavements

  17. Joint Optimization of Pavement Management and Reconstruction Policies for Segment and System Problems

    University of California eScholarship Repository

    Lee, Jinwoo

    2015-01-01

    pavement management systems: A case for approximate dynamicmanagement using approximate dynamic programming. Journal of Infrastructure Systemsdynamic programming and other mathematical techniques to pavement management systems.

  18. Desert pavement morphology and dynamics, Big Bend National Park, Texas 

    Texas A&M University - TxSpace

    Harmon, Courtney Michelle

    2009-05-15

    parameters as percent ground cover, clast size, and sorting. Three distinct surface mosaic types of bare ground (BG1, BG2, BG3) and three desert pavement mosaic types (DP1, DP2, DP3) were identified as shown in Fig. 5, and each desert pavement mosaic... than 65% of the ground covered by clasts. 17 Fig. 5. Desert pavement classification system. Examples of the three defined desert pavement surface mosaics (DP1, DP2, DP3) and three bare ground surface mosaics (BG1, BG2, BG3) as classified by Wood...

  19. Portland Cement Concrete Pavement Shannon Golden, Alabama DOT

    Engineering Websites

    Portland Cement Concrete Pavement Shannon Golden, Alabama DOT PORTLAND CEMENT CONCRETE PAVEMENT may be substituted for part of the required Portland cement. Substitution of mineral admixtures shall Cement shall not exceed the percentages shown in the following table: MAXIMUM ALLOWABLE SUBSTITUTION

  20. Guide to Cement-Based Integrated Pavement Solutions

    Engineering Websites

    Guide to Cement-Based Integrated Pavement Solutions August 2011 #12;Cement-Based Integrated Commercial Residential Recreation LAND USE CEMENT-BASED INTEGRATED PAVEMENT SOLUTIONS 1 2 3 4 5 6 7 8 Conventional Overlays CRCP VIBRATORY COMPACTION Pervious Concrete Full-Depth Reclamation Cement- Treat- ed Base

  1. Guide Specification for Highway Construction Texturing Concrete Pavement for

    Engineering Websites

    and by tining. 4. DRAG PRETEXTURE 4.1. Drag artificial turf or burlap longitudinally along the concrete pavement surface after finishing to enhance texture. The turf or burlap shall be mounted on a work bridge or a moveable support system capable of varying the area of turf or burlap in contact with the pavement. 4

  2. COLORADO DEPARTMENT OF TRANSPORTATION Sustainability of Concrete Pavement

    Engineering Websites

    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

  3. Field performance of geosynthetic reinforced pavements over expansive clay subgrades

    Environmental Management and Restoration Websites

    Zornberg, Jorge G.

    Field performance of geosynthetic reinforced pavements over expansive clay subgrades Zornberg, J, The University of Texas, Austin, USA 78712 Keywords: reinforced pavements; expansive soils; geogrids; geotextiles; moisture sensors ABSTRACT: Expansive soils in semi-arid and arid regions of Texas are subjected to moisture

  4. Guide Specification for Highway Construction Texturing Concrete Pavement for

    Engineering Websites

    the full width of the pavement being placed. The turf or burlap shall have a means to adjust the height and with the concrete being placed. Where construction operations necessitate and with the approval of the Owner inches in length and uniform across the width of the pavement being placed. 4.5. Turf or burlap dragging

  5. Alabama DOT 1. Briefly summarize your current pavement smoothness requirements.

    Engineering Websites

    Alabama DOT 1. Briefly summarize your current pavement smoothness requirements. Concrete pavement smoothness is checked using straight edges, levels and strings (all to be furnished by the Contractor). Smoothness checks are made continuously throughout paving process while the concrete is still workable

  6. Structural design of pavements with stabilized layers Animesh Das

    Engineering Websites

    Das, Animesh

    Structural design of pavements with stabilized layers Animesh Das Associate Professor, Department@iitk.ac.in The talk will primarily be divided in three parts, namely analysis of pavement structure, empirical design and mechanistic-empirical design approaches. First, the basic formulation for the analyses of bituminous, concrete

  7. 7. Low temperature cracking in HMA Pavement Cracking Al-Qadi, Scarpas & Loizos (eds)

    Engineering Websites

    Paulino, Glaucio H.

    in asphalt concrete pavements in cold regions. An integrated laboratory testing, field performance data provided new insights towards the mechanisms of thermal cracking in asphalt pavements. 1 INTRODUCTION The low temperature cracking of asphalt concrete pavements is a major pavement distress mech- anism

  8. Asphalt Pavement Aging and TemperatureAsphalt Pavement Aging and Temperature Dependent Properties using a FunctionallyDependent Properties using a Functionally

    Engineering Websites

    Paulino, Glaucio H.

    Asphalt Pavement Aging and TemperatureAsphalt Pavement Aging and Temperature Dependent Properties(132) 3 #12;Functionally Graded Viscoelastic AsphaltFunctionally Graded Viscoelastic Asphalt Concrete ModelConcrete Model Motivation and Introduction Viscoelastic Characterization of Asphalt Concrete

  9. Life cycle assessment of concrete pavements : impacts and opportunities

    MIT - DSpace

    Loijos, Alex (Alexander Nikos)

    2011-01-01

    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 ...

  10. Automated crack control analysis for concrete pavement construction 

    Texas A&M University - TxSpace

    Jang, Se Hoon

    2005-11-01

    probabilistic approach to determine the optimum time and depth of sawcutting for newly constructed portland cement concrete pavements. Variability in climate conditions and material characteristics during the hardening process affects the potential of cracking...

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

    Texas A&M University - TxSpace

    Yang, Guiqin

    1999-01-01

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

  12. OVERLAYSSustainable Solutions for Resurfacing and Rehabilitating Existing Pavements THIRD EDITION

    Engineering Websites

    Guide to CONCRETE OVERLAYSSustainable Solutions for Resurfacing and Rehabilitating Existing. Title and Subtitle 5. Report Date Guide to Concrete Overlays: Sustainable Solutions for Resurfacing 10. Work Unit No. (TRAIS) National Concrete Pavement Technology Center Institute for Transportation

  13. Regular Inspection and Maintenance Guidance for Porous Pavements

    Environmental Management and Restoration Websites

    . Inspection Activities Visual inspections are an integral part of system maintenance. This includes monitoring non-design loads. Damaged areas may be repaired by use of infrared heating and rerolling of pavement

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

    Texas A&M University - TxSpace

    Prapaitrakul, Nikornpon

    2011-02-22

    durability. The main component in asphalt binder oxidation in pavements is binder oxidative hardening. As the aromatic compounds in asphalt binders are oxidized, more polar carbonyl compounds are created, which results in stronger associations between asphalt...

  15. Moriarty Municipal Airport (0E0) Pavement Condition and Analysis

    Environmental Management and Restoration Websites

    Cal, Mark P.

    ..................................................Table 1. Moriarty Airport (0E0) Aircraft Operations (2007-2008) 5 ....................................Table 2. Moriarty Airport (0E0) Predicted Aircraft Operations 2007-2027 6. Design Aircraft Used for Runway Pavement Design 20

  16. Las Cruces International Airport (LRU) Pavement Condition and Analysis

    Environmental Management and Restoration Websites

    Cal, Mark P.

    1. Las Cruces International Airport (LRU) Aircraft Operations (2008-09) 5 .........Table 2. Las Cruces International Airport (LRU) Predicted Aircraft Operations 2007-2027 6 .............Figure 2. Las. Design Aircraft Used for Runway Pavement Design 20

  17. Sierra Blanca Ruidoso Airport (SRR) Pavement Condition and Analysis

    Environmental Management and Restoration Websites

    Cal, Mark P.

    .................................................Table 1. Sierra Blanca Ruidoso (SRR) Aircraft Operations (2007) 5 ..........................Table 2. Sierra Blanca Ruidoso (SRR) Predicted Aircraft Operations 2007-2027 6. Design Aircraft Used for Runway Pavement Design 19

  18. Silver City Grant County Airport (SVC) Pavement Condition and Analysis

    Environmental Management and Restoration Websites

    Cal, Mark P.

    . Silver City Grant County Airport (SVC) Aircraft Operations (2008-2009) 5 .........Table 2. Silver City Grant County Airport (SVC) Predicted Aircraft Operations 2007-2027 6 ............................Figure. Recommend Pavement Design 19 ......................................................Table 5. Design Aircraft

  19. Raton Municipal Airport (RTN) Pavement Condition and Analysis

    Environmental Management and Restoration Websites

    Cal, Mark P.

    .............................................Table 1. Raton Municipal Airport (RTN) Aircraft Operations (2008) 5 ......................Table 2. Raton Municipal Airport (RTN) Predicted Aircraft Operations 2007-2027 6 ..................................Figure 2 Aircraft Used for Runway Pavement Design 20

  20. Implications of reliability in mechanistic/empirical pavement design applications 

    Texas A&M University - TxSpace

    Killingsworth, Brian Mark

    1994-01-01

    At present there are many design procedures for both asphalt and concrete pavement structures. The object of any one of these design procedures being to produce a quality riding structure that will satisfy the design engineer and the riding public...

  1. Incorporating uncertainty in the Life Cycle Cost Analysis of pavements

    MIT - DSpace

    Swei, Omar Abdullah

    2012-01-01

    Life Cycle Cost Analysis (LCCA) is an important tool to evaluate the economic performance of alternative investments for a given project. It considers the total cost to construct, maintain, and operate a pavement over its ...

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

    University of California eScholarship Repository

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

    2008-01-01

    Pavement Response ? t-AC ? v-SG H AC to Yield Same Responses Wetpavement structure had a significant influence on the foamed asphalt layer stiffness, with differences as high as 40 percent between wet and

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

    University of Kansas - KU ScholarWorks

    Acharya, B. S.

    2011-12-31

    ABSTRACT The reprocessed old hot mix asphalt (HMA) concrete also called "Recycled Asphalt Pavement (RAP)", if used to build new roads or to maintain existing roads, would have several benefits, such as preservation of ...

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

    Engineering Websites

    Portland Cement Concrete Pavement State Route 96 Crawford / Peach Counties I-75 Tift County CRC Lane placed 958,000 square yards of PCC Pavement 12" Portland Cement Concrete Current Typical Section of GDOT

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

    Texas A&M University - TxSpace

    Liu, Guanlan

    2015-08-10

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

  6. North Carolina DOT 1. Briefly summarize your current pavement smoothness requirements.

    Engineering Websites

    North Carolina DOT 1. Briefly summarize your current pavement smoothness requirements. Asphalt for and for all other asphalt pavements utilize the 10 Non Mobile Straightedge. When using the Hearne 10' Mobile

  7. PRECAST REPLACEMENT OF CONCRETE PAVEMENT SLABS (Tollway) Effective: March 30, 2009

    Engineering Websites

    precast system, the pavement areas to be repaired will be initially delineated by the Engineer on shoulder'-6" standard slab repair or require a custom slab repair. Standard slab placement shall only be allowed where, the pavement areas to be repaired will be initially delineated by the Engineer on shoulder pavement using spray

  8. Video Conference Agenda and Meeting Notes: Two-Lift Concrete Pavements 27 June 2007

    Engineering Websites

    Video Conference Agenda and Meeting Notes: Two-Lift Concrete Pavements 27 June 2007 Location: FHWA of The Transtec Group will discuss the pavement surface characteristics work ongoing at the National CP Tech expected for 2008. If there is interest by anyone on Two Lift concrete pavements, contact the National CP

  9. Evaluation of geogrids for stabilising weak pavement subgrade Xiaochao Tang1

    Engineering Websites

    Palomino, Angelica M.

    (MMLS3) on geogrid-reinforced pavement sections. The pavement sections are constructed on a subgrade a positive correlation with pull-out test results. Keywords: geogrid; subgrade stabilisation; pavement; bench-scale testing; accelerated testing, MMLS3 1. Introduction Geogrids have been widely used as reinforcement

  10. A Method of Generating Pavement Textures Using the Square Packing Technique Kazunori Miyata

    Materials Science Websites

    McGaughey, Alan

    Title: A Method of Generating Pavement Textures Using the Square Packing Technique Authors a method of generating pavement textures using the square packing technique. A pattern of packed square. The pavement texture is then obtained by generating a stone shape for each cell with the subdivision surface

  11. Preliminary evaluation of the lifecycle costs and market barriers of reflective pavements

    University of California eScholarship Repository

    Ting, M.; Koomey, J.G.; Pomerantz, M.

    2001-01-01

    maintenance is often based on maintaining appearance as well as performance, so parameters like pavement conditionbased pavement condition inventory, 2) a recommended schedule of maintenancecondition scenarios. These estimates are based on records from member jurisdictions and a comprehensive study of pavement maintenance

  12. Geosynthetics in pavements: North American contributions Zornberg, J.G. & Gupta, R.

    Environmental Management and Restoration Websites

    Zornberg, Jorge G.

    , pavement, design ABSTRACT: Geosynthetics have been used to reinforce the base layer of flexible pavement of an earth structure under tensile stresses helps inhibit- ing extension strains within the soil, thereby reinforcement in the base-course layer of flex- ible pavements (paved roads). 2 BACKGROUND To highlight

  13. PRESERVING THE LONG LIFE CONCRETE PAVEMENT NETWORK OF THE WASHINGTON STATE DEPARTMENT OF TRANSPORTATION

    Engineering Websites

    pavements 2,360 lane-miles. Vary in age between 1 and 80 years, the average is 35 years. The majority were Management System monitors the performance of each 0.1 lane- mile pavement section Cracking, Spalling, or the combination causing same damage; and 2. Pavement age less than 40 years; and 3. All type of cracking and high

  14. EVALUATION OF THE INFLUENCE OF TACK COAT CONSTRUCTION FACTORS ON THE BOND STRENGTH BETWEEN PAVEMENT LAYERS

    Environmental Management and Restoration Websites

    EVALUATION OF THE INFLUENCE OF TACK COAT CONSTRUCTION FACTORS ON THE BOND STRENGTH BETWEEN PAVEMENT Evaluation of the Influence of Tack Coat Construction Factors on the Bond Strength between Pavement Layers 7 provided by the tack coat at the interface between pavement layers. These factors included the surface

  15. AN IMPROVED DYNAMIC MODEL FOR THE STUDY OF A FLEXIBLE PAVEMENT

    Mathematics Websites

    Avignon et des Pays de Vaucluse, Université de

    to study a Falling Weight Deectometer test conducted on a exible pavement. These dynamic models take of these improvement steps. Keywords: Dynamic, Falling Weight Deectometer (FWD), Flexible pavement, Rayleigh damping Weight De- ectometer (FWD) is the most popular for the NDT testing of exible pavements. The FWD (see Fig

  16. AANP Survey Reveals Lack Of Dialogue Regarding Bleeding Disorder

    Computer Technologies and Information Sciences Websites

    Fernandez, Eduardo

    AANP Survey Reveals Lack Of Dialogue Regarding Bleeding Disorder Tuesday May 31, 2011 The American Willebrand disease, a common but often undiagnosed bleeding disorder. The AANP commissioned an online survey Willebrand disease, one of the most common hereditary bleeding disorders. In VWD, a potentially life

  17. Noise Reduction of a Turbofan Bleed Valve Vincent Phong1

    Engineering Websites

    Papamoschou, Dimitri

    and computational research effort investigated the noise sources of a pneumatic bleed valve used in turbofan engines VALVES Fig. 1 Example installation of bleed valves on a turbofan engine (courtesy: wwwNoise Reduction of a Turbofan Bleed Valve Vincent Phong1 , Shervin Taghavi Nezhad2 , Feng Liu3

  18. Concrete Pavement Research Project Title Project Description First Last Email

    Engineering Websites

    State Concrete Pavement Research Project Title Project Description First Last Email Date started project is listed (TRIS, etc.) DB number Track Link Project 8 IA Self-Consolidating Concrete- -Applications for Slip Form Paving, Phase 2 The objective of this research is to develop a new type of concrete

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

    Engineering Websites

    COMPOSITE PORTLAND CEMENT CONCRETE PAVEMENTS (Tollway) Effective: January 30, 2012 Revised: May 8 tomography (MIT) device. Ternary concrete mix refers to concrete that incorporates portland cement, ground materials. A Type IT blended ternary cement in accordance with AASHTO M 240 shall be acceptable. A Type IP

  20. Roswell International Air Center Airport (ROW) Pavement Condition and Analysis

    Environmental Management and Restoration Websites

    Cal, Mark P.

    Center (ROW) Predicted PCI Branch Map, March 14, 2010 9 .........Table 3. Roswell Intl. Air Center (ROW 19 .........................Figure 9. Roswell Intl. Air Center (ROW) Predicted PCI Branch Map Non-Standard Pavement Design for Asphalt Concrete 26 ...............Table 9. Recommended Runway

  1. Permeable Interlocking Concrete Pavement (PICP) for Stormwater Management

    Environmental Management and Restoration Websites

    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

  2. 1 INTRODUCTION A typical flexible pavement system includes four

    Environmental Management and Restoration Websites

    Zornberg, Jorge G.

    1 INTRODUCTION A typical flexible pavement system includes four distinct layers: asphalt concrete, base course, subbase, and subgrade (Figure 1). The surface layer is typically asphalt concrete, which is a bituminous hot-mix aggregate obtained from distillation of crude petroleum. The asphalt concrete is underlain

  3. SORPTIVITY-BASED SERVICE LIFE PREDICTIONS FOR CONCRETE PAVEMENTS

    Materials Science Websites

    Bentz, Dale P.

    , Chiara F. Ferraris, and Edward J. Garboczi Building and Fire Research Laboratory National Institute of sorptivity-based service life models for concrete pavements and bridge decks. To develop a service life model, one needs to identify and model the suspected degradation mechanism, develop laboratory tests

  4. GFRP DOWEL BARs FOR CONCRETE PAVEMENT Susan L. Grieef

    Engineering Websites

    Graduate StUdies in Partial FUlfilment of the ReqUireJIJents for the Degree of MASTER OF SCIENCE Depart_a_n__L_.__G_r_i_e_e_f____________________________ in partial fal.fil1.ment of the requirements for the degree ~ Master of Science The Thesis Examining pavements. However, problems arising from corrosion ofthe steel have prompted recent investigations

  5. Bituminous pavement recycling Aravind K. and Animesh Das

    Engineering Websites

    Das, Animesh

    with pavement recycling are (i) less user delay (ii) conservation of energy (iii) preservation of environment for recycling per year is about 0.84 million tons in Sweden, 7.3 million tons in Germany, 0.53 million tons mix was produced in Japan, which constituted 30% of the total hot mix production [4]. The RAP

  6. Asphalt Pavement Aging and Temperature Dependent Properties through a Functionally

    Mathematics Websites

    Paulino, Glaucio H.

    on Material Response Data from Apeagyei et al. (2008) #12;9 FE Model Two-dimensional axi Layers #12;11 Simulation Results Material Distributions: FGM Layered Aged Unaged Pavement Responses efficient and accurate simulation scheme for viscoelastic functionally graded materials (VFGMs

  7. Final Report 541 Mitigation Strategies of Reflection Cracking in Pavements

    Environmental Sciences and Ecology Websites

    Harms, Kyle E.

    Reflection cracking is a serious challenge associated with pavement rehabilitation. Practical experience of this synthesis study is to conduct an in-depth literature review of research projects on reflection cracking are the most promising treatment methods. Based on the results of this study, the research team recommends

  8. National Concrete PavementTechnology Center 2711 South Loop Drive, Suite 4700

    Engineering Websites

    framework for the research, technology transfer, and implementation of the most cost-effective methods · SC 7. Technology Transfer and Implementation of Concrete Pavement Surface Characteristics Research

  9. California DOT 1. Briefly summarize your current pavement smoothness requirements.

    Engineering Websites

    the grade ordered. 2. Remove and replace HMA if the finished surface is lower than 0.05 foot below the grade ordered. 39-1.12B Straightedge The top layer of HMA pavement must not vary from the lower edge of a12-foot long straightedge: 1. More than 0.01 foot when the straight edge is laid parallel with the centerline 2

  10. An investigation into the predictive performance of pavement marking retroreflectivity measured under various conditions of continuous wetting 

    Texas A&M University - TxSpace

    Pike, Adam Matthew

    2007-04-25

    This thesis research investigated the predictive performance of pavement marking retroreflectivity measured under various conditions of continuous wetting. The researcher compared nighttime detection distance of pavement markings in simulated rain...

  11. Asphalt Pavement Aging and Temperature Dependent Properties through a Functionally Graded Viscoelastic Model, Part-I: Development,

    Engineering Websites

    Paulino, Glaucio H.

    Asphalt Pavement Aging and Temperature Dependent Properties through a Functionally Graded simulations, correspondence principle, finite-element method Abstract. Asphalt concrete pavements are inherently graded viscoelastic structures. Oxidative aging of asphalt binder and temperature cycling due

  12. Noise Reduction of a Turbofan Bleed Valve Vincent Phong1

    Engineering Websites

    Liu, Feng

    and computational research effort investigated the noise sources of a pneumatic bleed valve used in turbofan engines://arc.aiaa.org|DOI:10.2514/6.2012-681 #12;I. Introduction A significant but little-reported noise from turbofan engines installation of bleed valves on a turbofan engine (courtesy: www.sciencemuseum.org.uk). The basic elements

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

    Engineering Websites

    Paulino, Glaucio H.

    Asphalt Pavement Aging and Temperature Dependent Properties through a Functionally Graded for an aged asphalt concrete pavement. In the current study, a similar pavement section is studied using across the thickness of the asphalt concrete layers. The main sources of non-homogeneity are: (a) Aging

  14. Reasons for choosing CP2 pavement design: Requires less frequent maintenance, repair and rehabilitation.

    Engineering Websites

    to be an important factor of their potential longevity in extreme climates. Low Water/Cement ratio, decreases between CP2 concrete pavement design & typical designs ·Water to cement ratio Typical PCCP W/C = 0 Approximately $10.56 per Square Foot (Plain Cement Concrete Pavement, RPS, 15" Depth) 72,207 SQ YD @ $95.00/SQ

  15. COARSE AGGREGATE FOR COMPOSITE PORTLAND CEMENT CONCRETE PAVEMENT Effective: January 30, 2012

    Engineering Websites

    COARSE AGGREGATE FOR COMPOSITE PORTLAND CEMENT CONCRETE PAVEMENT (Tollway) Effective: January 30, 2012 Revised: October 29, 2012November 26, 2012 Coarse aggregate for Portland Cement Concrete shall of composite Portland cement concrete pavement. Add the following to Article 1004.02 of the Standard

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

    University of California eScholarship Repository

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

    2006-01-01

    and nondestructive data before and after the recyclingData Collection Equipment 3.2.3 Process for Evaluating Strategies for RecyclingRecycling of PCC Grindings Slurry” 3.2.4 Development of Integrated Databases to Make Pavement Preservation Decisions 3.2.5 Documentation of Pavement Performance Data

  17. Evaluation of the existing performance models used for pavement management by the Texas Department of Transportation 

    Texas A&M University - TxSpace

    Mukherjee, Biswajit

    1998-01-01

    is the most important factor in FPS-19, followed by twenty-year projected axle repetition (ESAL). A research database was created by extracting data from the Long Term Pavement Performance (LTPP) database for pavement sections in Texas. A11 data items except...

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

    Energy Storage, Conversion and Utilization Websites

    California at Davis, University of

    Project Information Form Project Title Evaluation of the Combined Effect of Recycled Asphalt Pavement (RAP), Recycled Asphalt Shingles (RAS), and Different Virgin Binder Sources on Performance of pavement material that is routinely recycled increases, it becomes more desirable to use significantly

  19. CrackTree: Automatic crack detection from pavement images Qin Zou a,b,c,

    Computer Technologies and Information Sciences Websites

    Wang, Song

    CrackTree: Automatic crack detection from pavement images Qin Zou a,b,c, , Yu Cao c , Qingquan Li b. Sladoje Keywords: Crack detection Edge detection Edge grouping Tensor voting Shadow removal a b s t r a c t Pavement cracks are important information for evaluating the road condition and conducting the neces- sary

  20. PAVEMENT CRACK DETECTION BASED ON SALIENCY AND STATISTICAL FEATURES Zhenmin Tang

    Computer Technologies and Information Sciences Websites

    Zhou, Jun

    PAVEMENT CRACK DETECTION BASED ON SALIENCY AND STATISTICAL FEATURES Wei Xu Zhenmin Tang Jun Zhou ABSTRACT Traditional pavement crack detection methods can not cope well with the complexity and diversity of noises in large image area. To solve this problem, we propose a novel unsupervised crack detection

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

    Engineering Websites

    = 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 of steel dowels due to the application of de-icing salts causes severe deterioration of concrete highway

  2. Oil and Gas Energy Developments and Changes in Pavement Conditions in Texas

    Engineering Websites

    Oil and Gas Energy Developments and Changes in Pavement Conditions in Texas Final report PRC 14-35F #12;2 Oil and Gas Energy Developments and Changes in Pavement Conditions in Texas Texas A.............................................................................................................. 10 Chapter 2. Oil and Gas Well and Hydrocarbon Production Data

  3. QUANTIFYING THE BENEFITS FOR USING GEOSYNTHETICS IN UNBOUND BASE COURSE OF PAVEMENTS IN HIGH PI CLAYS

    Environmental Management and Restoration Websites

    Zornberg, Jorge G.

    methodology to do the same. The present study aims at constructing field test sections on actual pavements sections on actual pavements with and without geogrid would be constructed. This will lead to quantification of the benefits obtained by using geogrids, and comparing the cost and performance

  4. Thermal Cracking Prediction Model and Software for Asphalt Pavements Eshan V. Dave1

    Mathematics Websites

    Paulino, Glaucio H.

    Thermal Cracking Prediction Model and Software for Asphalt Pavements Eshan V. Dave1 , Sofie Leon2.edu Abstract Thermally induced cracking in asphalt pavements remains to be one of the prominent distress of rate- dependent asphalt concrete reduce(s) the reliability of predictions. This study presents

  5. PCC Pavement Sustainability in New York Economy, Environment, and Society: 2 Out of 3 is Easy

    Engineering Websites

    pavements have very high load carrying capacities and are designed for 50 year service lives in New York." 5. NYSDOT has constructed beautiful, high capacity PCC pavements in urban areas with impressive, and maintaining it through work zones, can work against sustainable practices. 1. Smaller work zones can result

  6. Finite Element Investigation of the Deterioration of Doweled Rigid Pavements

    CERN Preprints

    Ghauch, Ziad G

    2011-01-01

    The purpose of this study is to describe the failure of concrete around dowel bars in jointed rigid pavements, and the resulting effect on the pavement performance. In fact, under repetitive vehicle loading, concrete in contact with the dowel bar deteriorates, particularly at the joint face. The degradation of concrete around the dowel negatively affects the latter's performance in terms of transferring wheel loads through vertical shear action. In this context, a nonlinear 3D Finite Element analysis was performed using the commercial FE code Abaqus (v-6.11). The FE model was validated with classical analytical solutions of shear and moment along the dowel. A concrete damaged plasticity model was used for the PCC slab to model the degradation of concrete matrix around the dowels under incremental loading. Results obtained show, among other things, that the degradation of concrete matrix around the dowel was found to initiate at the face of the joint and propagate towards the interior of the dowel. Also, resul...

  7. Finite Element Investigation of the Deterioration of Doweled Rigid Pavements

    Physics (arXiv)

    Ziad G. Ghauch

    2013-06-23

    The purpose of this study is to describe the failure of concrete around dowel bars in jointed rigid pavements, and the resulting effect on the pavement performance. In fact, under repetitive vehicle loading, concrete in contact with the dowel bar deteriorates, particularly at the joint face. The degradation of concrete around the dowel negatively affects the latter's performance in terms of transferring wheel loads through vertical shear action. In this context, a nonlinear 3D Finite Element analysis was performed using the commercial FE code Abaqus (v-6.11). The FE model was validated with classical analytical solutions of shear and moment along the dowel. A concrete damaged plasticity model was used for the PCC slab to model the degradation of concrete matrix around the dowels under incremental loading. Results obtained show, among other things, that the degradation of concrete matrix around the dowel was found to initiate at the face of the joint and propagate towards the interior of the dowel. Also, results obtained confirmed the decrease in load transfer capability of the dowels as the PCC matrix deteriorates. The central dowels under the wheel load lost a significant portion of their load-transfer capacity as the PCC matrix around them deteriorated, while dowels farther away from the wheel load became more engaged in load transfer.

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

    University of California eScholarship Repository

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

    2005-01-01

    and construction Striping, Temporary Barriers, Portable Message Signs Temporary pavement, bridges, andTemp. Construction Easements Utility Relocations All BridgeConstruction Easements Utility Relocations All work done to bridges

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

    MIT - DSpace

    Rossick, Katelyn M

    2014-01-01

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

  10. Principles of bituminous pavement design and the recent trends Animesh Das1

    Engineering Websites

    Das, Animesh

    ). Since the input parameters with which the pavement design system is based on, exhibit significant of economy and the design reliability. Recent trends Some of the recent issues related to (i) integrated mix

  11. In-place engineering properties of recycled and stabilized pavement layers 

    Texas A&M University - TxSpace

    Syed, Imran Majidali

    1997-01-01

    , some of the districts have been actively recycling thin surfaced pavements and stabilizing bases in an attempt to correct deterioration and increase the structural capacity. In a one pass operation the existing surface and base are mixed and stabilized...

  12. Using finite element structural analysis to study retroreflective raised pavement markers 

    Texas A&M University - TxSpace

    Tong, Jiaxin

    2009-06-02

    This thesis investigates the stress inside Retroreflective Raised Pavement Markers (RRPMs) under tire-marker impact and laboratory testing scenarios. Many RRPMs have poor durability although they meet certain standards of the existing laboratory...

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

    University of California eScholarship Repository

    Horvath, Arpad

    2003-01-01

    decision- making and scenario analysis as parameters of the pavement recycling modelanalysis (LCA) model and implemented in a computer-based spreadsheet that uses environmental and economic parameters to assist decision-

  14. Validation and development of guidelines to select MRR strategies for rigid pavements 

    Texas A&M University - TxSpace

    Herrera, Edgar Efren

    2001-01-01

    Maintenance, rehabilitation and reconstruction (MRR) work to rigid pavement roadways requires a great demand of time, effort, and money. The nature of this work not only affects state highway agencies (SHAs) but also, ...

  15. Evaluation of infiltration in layered pavements using surface GPR reflection techniques

    Geosciences Websites

    Hubbard, Susan

    -coupled ground penetrating radar (GPR) techniques were used to non-destructively monitor the volumetric water over a period of several months into two differently layered pavement test sections, one of which

  16. A Methodology for Developing Performance-Related Specifications for Pavement Preservation Treatments 

    Texas A&M University - TxSpace

    Liu, Litao

    2013-09-23

    need for performance-related specifications (PRS) that link the initial quality of pavement preservation treatments to their long-term performance and life-cycle costs so that rational pay adjustment and acceptance decisions can be made. However...

  17. Sensitivity analysis of flexible pavement response and AASHTO 2002 design guide for properties of unbound layers 

    Texas A&M University - TxSpace

    Masad, Sanaa Ahmad

    2004-09-30

    Unbound granular materials are generally used in road pavements as base and subbase layers. The granular materials provide load distribution through aggregate contacts to a level that can help the subgrade to withstand the applied loads. Several...

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

    University of California eScholarship Repository

    Santero, Nicholas

    2010-01-01

    global warming potential Chan (2007) Process United StatesGlobal Warming Potential Economic and Environmental Evaluations of Life Cycle Cost Analysis Practice: A Case Study of Michigan DOT Pavement Projects Process United States

  19. The impact of maintenance and rehabilitation strategies on the pavement network value 

    Texas A&M University - TxSpace

    Chang Albitres, Carlos Martin

    1999-01-01

    The maintenance and rehabilitation of road infrastructure demands a great investment of time and money. The deterioration of pavement condition over time due to environmental factors and increasing traffic loads combined ...

  20. The ASU Transportation Engineering program has two general themes: Transportation Systems, and Pavements and Materials. First,

    Computer Technologies and Information Sciences Websites

    The ASU Transportation Engineering program has two general themes: Transportation Systems, and Pavements and Materials. First, the Transportation Systems program addresses a broad range of education and research focus areas. Faculty in transportation systems focus on traffic operations and simulation

  1. Effectiveness of vertical moisture barriers in highway pavements on expansive soils 

    Texas A&M University - TxSpace

    Jayatilaka, Ranasinghege

    1993-01-01

    Moisture fluctuations in expansive clay subgrades in response to rainfall and evapotranspiration cause volume changes that in turn cause excessive damage to pavements resting on such subgrades. The Texas Department of ...

  2. A decision process framework: selecting strategies for rehabilitation of rigid pavements subjected to high traffic volumes 

    Texas A&M University - TxSpace

    Valls, Marc Edouard Josep

    2000-01-01

    Concrete pavements, underdesigned for today's levels of traffic, are deteriorating rapidly. Maintenance, rehabilitation, and reconstruction activities (MRR) have become more widespread and costly. State highway agencies are often being asked to do...

  3. Determination of the Presence Conditions of Pavement Markings using Image Processing 

    Texas A&M University - TxSpace

    Ge, Hancheng

    2012-10-19

    by Graphic User Interface (GUI) as a platform to simultaneously evaluate the presence conditions of single or multiple pavement markings. The developed software package is able to do operations such as open files, calibrate camera calibration, clip, rotation...

  4. Development of equations to determine the increase in pavement condition due to treatment and the rate of decrease in condition after treatment for a local agency pavement network. 

    Texas A&M University - TxSpace

    Deshmukh, Maithilee Mukund.

    2010-07-14

    . The goal of the regression analysis is to obtain reasonable prediction models for use in the MTC-PMS StreetSaver decision support model, for use by local agencies in the San Francisco Bay Area. To determine the effect of various attributes on PCI... OF EQUATIONS TO DETERMINE THE INCREASE IN PAVEMENT CONDITION DUE TO TREATMENT AND THE RATE OF DECREASE IN CONDITION AFTER TREATMENT FOR A LOCAL AGENCY PAVEMENT NETWORK A Thesis by MAITHILEE MUKUND DESHMUKH Submitted to the Office of Graduate...

  5. Use of System Dynamics to Understand the Long Term Impact of Climate Change on Pavement Performance and Maintenance Cost

    Environmental Management and Restoration Websites

    topics of climate change, pavement design and performance, and economics into comprehensive studies climatic patterns ­ for example floods associated with hurricanes of increasing frequency and rise in sea

  6. POINT-BASED COLOR BLEEDING WITH VOLUMES Presented to

    Computer Technologies and Information Sciences Websites

    Wood, Zoë J.

    an extension to the commonly used point-based color bleeding (PCB) technique, implementing volume scatter contributions. With the addition of this PCB algorithm extension, we are able to render fast, be- lievable in.1 Global Illumination . . . . . . . . . . . . . . . . . . . . . . . . . . 14 3.1.1 PCB

  7. REVIEW ARTICLE Prevention of spontaneous bleeding in dogs with haemophilia

    Biology and Medicine Websites

    Kay, Mark A.

    REVIEW ARTICLE Prevention of spontaneous bleeding in dogs with haemophilia A and haemophilia B T. C of Pediatrics, Howard Hughes Medical Institute, Philadelphia, PA, USA Summary. Dogs with haemophilia in humans with severe haemophilia. The phenotypic and genotypic characteristics of haemophilic dogs have

  8. Currently, sterilized gauze is used to stem any bleeding occurring during

    Computer Technologies and Information Sciences Websites

    Langendoen, Koen

    to fill the individual will apply pressure to the blood vessels and so stop the bleeding. The addition into place to close the blood vessels. The bleeding can be so severe ­ potentially fatal ­ that the operation

  9. Geotextiles, one among the different geosynthetic products, can be used for a number of functions or applications in pavement design. Specifically, woven or nonwoven geotextiles have been used in pavements to fulfill the

    Environmental Management and Restoration Websites

    Zornberg, Jorge G.

    of new products has led to reduction in costs, it has also made it difficult for TxDOT personnel for more cost-effective pavements are probably being missed by not using (or by incorrectly using) geotextiles in pavement construction. In addition, selection of geotextiles in TxDOT is further deterred

  10. Road Materials and Pavement Design, 2013 Vol. 14, No. S2, 5778, http://dx.doi.org/10.1080/14680629.2013.812838

    Mathematics Websites

    Paulino, Glaucio H.

    .1080/14680629.2013.812838 IlliTC ­ low-temperature cracking model for asphalt pavements Eshan V. Davea *, William G. Buttlarb for asphalt pavements located in regions with cold climate; however, most pavement design methods do of asphalt mixture and do not account for quasi-brittle behaviour of asphalt concrete. Furthermore, TCModel

  11. A COMPREHENSIVE MODEL FOR THE FATIGUE ANALYSIS OF FLEXIBLE1 PAVEMENTS CONSIDERING THE EFFECTS OF DYNAMIC AXLE LOADS2

    Mathematics Websites

    Colominas, Ignasi

    of the dynamic axle load14 exerted by a heavy vehicle on the pavement. Finally, the model is completed by adding of pavements. In these pioneer studies, heavy vehicles where kept3 rolling on test tracks until OF DYNAMIC AXLE LOADS2 Fermín Navarrina, Corresponding Author3 School of Civil Engineering -- University

  12. Viscoroute 2.0: a tool for the simulation of moving load effects on asphalt pavement

    CERN Preprints

    Chabot, Armelle; Deloffre, Lydie; Duhamel, Denis

    2010-01-01

    As shown by strains measured on full scale experimental aircraft structures, traffic of slow-moving multiple loads leads to asymmetric transverse strains that can be higher than longitudinal strains at the bottom of asphalt pavement layers. To analyze this effect, a model and a software called ViscoRoute have been developed. In these tools, the structure is represented by a multilayered half-space, the thermo-viscoelastic behaviour of asphalt layers is accounted by the Huet-Sayegh rheological law and loads are assumed to move at constant speed. First, the paper presents a comparison of results obtained with ViscoRoute to results stemming from the specialized literature. For thick asphalt pavement and several configurations of moving loads, other ViscoRoute simulations confirm that it is necessary to incorporate viscoelastic effects in the modelling to well predict the pavement behaviour and to anticipate possible damages in the structure.

  13. Optimization of Self-Consolidating Concrete for Slip-form pavement

    Engineering Websites

    1 Optimization of Self-Consolidating Concrete for Slip-form pavement A thesis submitted in partial-form process. Various mix designs based on the concept of Self-Consolidated Concrete were studied, so-Richard, for their wonderful support throughout my studies. #12;5 Table of Contents Optimization of Self-Consolidating Concrete

  14. MODELING OF HYDRONIC AND ELECTRIC-CABLE SNOW-MELTING SYSTEMS FOR PAVEMENTS

    Energy Storage, Conversion and Utilization Websites

    MODELING OF HYDRONIC AND ELECTRIC-CABLE SNOW-MELTING SYSTEMS FOR PAVEMENTS AND BRIDGE DECKS By XIA of MASTER of SCIENCE December, 2002 #12;MODELING OF HYDRONIC AND ELECTRIC-CABLE SNOW-MELTING SYSTEMS Objective and Scope 45 2. PARAMETRIC STUDY OF SNOW-MELTING SYSTEM 47 2.1. Introduction 47 2.2. Methodology

  15. National Concrete PavementTechnology Center 2711 South Loop Drive, Suite 4700

    Engineering Websites

    Contact: Paul Wiegand, P.E. 515-294-7082, pwiegand@iastate.edu Strategic Plan for Improved Concrete Administration Cooperative Agreement DTFH61-01-X-00042 (Project 15) #12;Strategic Plan for Improved Concrete, Iowa State University Communications Services Mark Anderson-Wilk, National Concrete Pavement Technology

  16. Design principles for design of bituminous pavement with stabilized/ cemented layer

    Engineering Websites

    Das, Animesh

    Design principles for design of bituminous pavement with stabilized/ cemented layer Animesh Das1 aggregates in cemented form. Cement, lime, coal-flyash, pozzolanic materials, chemical polymers etc are some examples of cementing material, which can be mixed to the marginal aggregates to develop bound base/ sub

  17. TOLLWAY LCCA PROCESS FOR ADDAMS MEMORIAL TOLLWAY ADDAMS EXPRESSWAY PAVEMENT RECONSTRUCTION --

    Engineering Websites

    -- LIFE-CYCLE COST ANALYSIS BACKGROUND In 2012, the Illinois Tollway made the decision to reconstruct. The Tollway then performed a life-cycle cost analysis (LCCA) to determine the relative costs of five different, including: 2-lift, black rock Jointed Plain Concrete Pavement (JPCP) 2-lift, black rock Continuously

  18. Project Information Form Project Title White Paper on The application of permeable pavement with emphasis

    Energy Storage, Conversion and Utilization Websites

    California at Davis, University of

    with emphasis on successful design, water quality benefits, and identification of knowledge and data gaps and improve water quality as well as urban heat island, the application of permeable pavement in urban areas have increased tremendously as an alternative low impact development (LID) design for storm water best

  19. Project Information Form Project Title White Paper on the Application of Permeable Pavement with Emphasis

    Energy Storage, Conversion and Utilization Websites

    California at Davis, University of

    with Emphasis on Successful Design, Water Quality Benefits, and Identification of Knowledge and Data Gaps and improve water quality as well as urban heat island, the application of permeable pavement in urban areas have increased tremendously as an alternative low impact development (LID) design for storm water best

  20. CE 363 -TRANSPORTATION ENGINEERING AND PAVEMENT DESIGN Fall 2009 Course Syllabus

    Energy Storage, Conversion and Utilization Websites

    Hickman, Mark

    performance characteristics, highway geometric and pavement design principles; traffic analysis:00-8:50 pm, Harvill 305 Required Principles of Highway Engineering and Traffic Analysis, 4th edition, F: There will be weekly homework assignments. Each homework is scored out of 20 points. Homework handed in late will have

  1. Field monitoring and modeling of pavement response and service life consumption due to overweight truck traffic 

    Texas A&M University - TxSpace

    Oh, Jeong-Ho

    2004-11-15

    in the formulation Intensive nondestructive testing has been performed to identify the existing pavement test section geometry and layer properties. In addition, a fiber optic based Weigh-in Motion (WIM) sensor was developed and tested. It is expected to be a...

  2. Numerical Investigation of Design Strategies to Achieve Long-Life Pavements

    Physics (arXiv)

    Grace G. Abou-Jaoude; Ziad G. Ghauch

    2012-03-30

    Increasing the HMA base thickness and modifying the HMA mixture properties to improve the resistance to fatigue cracking are among the most popular methods for achieving long-lasting pavements. Such methods are based on the idea of reducing the tensile strain at the bottom of the HMA layer below the Fatigue Endurance Limit (FEL), a level of strain below which no cumulative damage occurs to the HMA mixture. This study investigates the effectiveness of several design strategies involved in long-life, perpetual pavement design. A 3D Finite Element model of the pavement involving a linear viscoelastic constitutive model for HMA materials and non-uniform tire contact stresses is developed using ABAQUS 6.11. The effects of asphalt base course thickness and mixture type, rich binder layer, and aggregate subbase layer are examined. Four asphalt base course mixture types, namely dense graded, polymer modified, high modulus, and standard binder, are studied as a function of the asphalt base course thickness. The results underline a better performance of the high-modulus asphalt base, as compared to the other base course mixtures. The aggregate subbase layer on top of subgrade soil showed a relatively minor effect on the longitudinal and lateral strain response at the bottom of asphalt base course. The addition of a rich binder layer at the bottom of the asphalt base course showed a significant reduction in tensile strains. Tables are provided as a guideline to assess the different alternatives in design of long-life perpetual pavements.

  3. Decomposition of tree leaf litter on pavement: implications for urban water quality

    Biology and Medicine Websites

    Thomas, David D.

    Decomposition of tree leaf litter on pavement: implications for urban water quality Sarah E. Hobbie and ultimately contribute to eutrophication of surface waters associated with urbanization. Thus, understand- ing for stormwater management. However, few studies have examined leaf litter decom- position in the unique urban

  4. Implementation Activities supporting the International Technology Scan on Long-Life concrete Pavements.

    Engineering Websites

    Implementation Activities supporting the International Technology Scan on Long-Life concrete pavements with long life expectancies. The purpose of this project under the FHWA/ISU cooperative agreement. The STIP recommendations are summarized below as identified in the draft STIP plan. Long-Life Concrete

  5. Viscoelastic functionally graded finite element method with recursive time integration and applications to flexible pavements

    Mathematics Websites

    Paulino, Glaucio H.

    . Aging and temperature-induced property gradi- ents are common sources of non-homogeneity for asphalt of which 75.6% have an asphalt concrete surface [1]. Asphalt concrete pavements are inherently graded viscoelastic structures. Oxidative aging of asphalt binder and temperature cycling leading to gradients

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

    Environmental Management and Restoration Websites

    and redevelopment projects are one watershed-based strategy that can both mitigate impacts for new development. Observed hydrologic response resembled shallow depth groundwater drainage, as is the goal for low-impact that can meet these requirements. Porous pavements can both mitigate impacts from new development

  7. Development of a mult-objective strategic management approach to improve decisions for pavement management practices in local agencies 

    Texas A&M University - TxSpace

    Chang Albitres, Carlos Martin

    2009-05-15

    Multiple objectives are often used by agencies trying to manage pavement networks. Often alternative investment strategies can accomplish the agencies’ target objectives. If the goal is to achieve the target objectives at the minimum cost...

  8. Impact of Climate Change on Pavement Performance: Preliminary Lessons Learned through the Infrastructure and Climate Network (ICNet)

    Environmental Management and Restoration Websites

    to integrate the multidisciplinary areas of climate change, pavement design and performance, and economics does climate non-stationarity differentially impact transportation infrastructure design, performance changing weather patterns resulting from global climate change. Observations, models, and even

  9. Accounting for the effects of rehabilitation actions on the reliability of flexible pavements: performance modeling and optimization 

    Texas A&M University - TxSpace

    Deshpande, Vighnesh Prakash

    2009-05-15

    A performance model and a reliability-based optimization model for flexible pavements that accounts for the effects of rehabilitation actions are developed. The developed performance model can be effectively implemented ...

  10. A Wireless Lab-in-a-Pill Biosensor for Rapid Detection of Gastrointestinal Bleeding

    Materials Science Websites

    A Wireless Lab-in-a-Pill Biosensor for Rapid Detection of Gastrointestinal Bleeding A dissertation Robert M. Westervelt Alex Nemiroski A Wireless Lab-in-a-Pill Biosensor for Rapid Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.3 A New Method to Identify Active GI Bleeding . . . . . . . . . . . . . 7 1.4 Design

  11. Effect of pervious and impervious pavement on the rhizosphere of American Sweetgum (Liquidambar styraciflua) 

    Texas A&M University - TxSpace

    Viswanathan, Bhavana

    2012-07-16

    .g., drought and flooding) generally decrease root and microbial respiration and thus soil CO2 efflux (de Dato et al. 2009; Guntinas et al. 2009). Other soil characteristics such as the anaerobic soil conditions that are more prevalent in compacted soils also... Aitkenhead Peterson Wesley Todd Watson Head of Department, Tim Davis May 2010 Major Subject: Horticulture iii iii ABSTRACT Effect of Pervious and Impervious Pavement on Soil Respiration, Soil Chemistry and Root Growth of American Sweetgum...

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

    Texas A&M University - TxSpace

    McGahan, Jeremy

    2006-04-12

    mixes and result in increased fatigue life (Monismith, 1970). Foster (1970) compared the resistance of dense-graded HMA mixes containing both crushed and uncrushed coarse aggregates to traffic loads using pavement test sections. He concluded... that HMA mixes containing crushed coarse aggregate perform 7 no better than mixes containing uncrushed coarse aggregate and that the true capacity of dense-graded mixes to resist traffic-induced stress is controlled by fine aggregate...

  13. Numerical Investigation of Design Strategies to Achieve Long-Life Pavements

    CERN Preprints

    Ghauch, Ziad G

    2011-01-01

    Increasing the HMA base thickness and modifying the HMA mixture properties to improve the resistance to fatigue cracking are among the most popular methods for achieving long-lasting pavements. Such methods are based on the idea of reducing the tensile strain at the bottom of the HMA layer below the Fatigue Endurance Limit (FEL), a level of strain below which no cumulative damage occurs to the HMA mixture. This study investigates the effectiveness of several design strategies involved in long-life, perpetual pavement design. A 3D Finite Element model of the pavement involving a linear viscoelastic constitutive model for HMA materials and non-uniform tire contact stresses is developed using ABAQUS 6.11. The effects of asphalt base course thickness and mixture type, rich binder layer, and aggregate subbase layer are examined. Four asphalt base course mixture types, namely dense graded, polymer modified, high modulus, and standard binder, are studied as a function of the asphalt base course thickness. The result...

  14. Controlled release films and functional surfaces targeting infection, inflammation, and bleeding

    MIT - DSpace

    Shukla, Anita, Ph. D. Massachusetts Institute of Technology

    2011-01-01

    Uncontrolled bleeding and infection are leading causes of patient morbidity and mortality following traumatic injury. Traditional pressure based methods of hemorrhage management are not suitable for incompressible or complex ...

  15. Performance-Based Concrete Pavement Mix Design System Performance-Based Design Guide for New and Rehabilitated

    Engineering Websites

    Systems and Economics · Concrete Pavement Sustainability The CP Road Map #12;The Problem... · Not many folks know about the CP Road Map. · Even fewer folks use the CP Road Map. #12;· We need to get the word out. · The CP Road Map needs to be even more interactive. · We want the CP Road Map to guide our

  16. Development of design criteria pertaining to signing, pavement markings, and geometric cross-section for improved two-lane section (Texas Super 2) 

    Texas A&M University - TxSpace

    Heard, Barry Don

    2001-01-01

    The purpose of this research was to establish the optimum driver information strategy regarding Super 2 passing lane sections in Texas. A Driver Survey and a Before and After Study examining proposed skip stripe pavement ...

  17. 64 NATURE MEDICINE VOLUME 5 NUMBER 1 JANUARY 1999 Hemophilia is an X-linked recessive bleeding disorder that

    Biology and Medicine Websites

    Kay, Mark A.

    of the transfusion of clotting factors prepared from human blood products. The risks associated with transfusion-linked recessive bleeding disorder that affects about 1 in 5,000 males and results from a deficiency of clotting clotting factors now in clinical trials or in clinical use for treatment of bleeding, and in some cases

  18. Detection of Bleeding in Wireless Capsule Endoscopy Images Using Range Ratio Color

    CERN Preprints

    Al-Rahayfeh, Amer A; 10.5121/ijma.2010.2201

    2010-01-01

    Wireless Capsule Endoscopy (WCE) is device to detect abnormalities in colon,esophagus,small intestinal and stomach, to distinguish bleeding in WCE images from non bleeding is a hard job by human reviewing and very time consuming. Consequently, automation for classifying bleeding frames not only will expedite the process but will reduce the burden on the doctors. Using the purity of the red color we can detect the Bleeding areas in WCE images. But, we could find various intensity of red color values in different parts of the small intestinal,so it is not enough to depend on the red color feature alone. We select RGB(Red,Green,Blue) because it takes raw level values and it is easy to use. In this paper we will put range ratio color for each of R,G,and B. Therefore, we divide each image into multiple pixels and apply the range ratio color condition for each pixel. Then we count the number of the pixels that achieved our condition. If the number of pixels grater than zero, then the frame is classified as a bleedi...

  19. Manuscript bleed-through removal via hysteresis thresholding Rolando Estrada and Carlo Tomasi

    Computer Technologies and Information Sciences Websites

    Tomasi, Carlo

    properly separate ink and bleed-through because the ranges of intensities for the two classes overlap. Hysteresis thresholding overcomes this limitation via the two steps of thresholding and ink regrowth of previously proposed approaches on ink pixel precision and recall. Hysteresis thresholding significantly

  20. Sarah Green, Bridget Laue, Heather Steele and Reuben Nowell July 2014 Horse chestnut bleeding canker

    Renewable Energy Websites

    the past decade by a widespread outbreak of bleeding canker disease. Symptoms include rust of this disease is the pathogenic bacterium Pseudomonas syringae pv. aesculi, which is believed to have originated should help unravel the key host­pathogen interactions that underlie bacterial diseases of trees. 1FCRN

  1. Document Ink bleed-through removal with two hidden Markov random fields and a

    Computer Technologies and Information Sciences Websites

    Wolf, Christian

    field Christian Wolf Abstract-- We present a new method for blind document bleed through removal based is not available (blind separation). In this case, the task is equivalent to a segmentation problem: classify each it might be a good idea to inter- pret the task as a blind source separation problem similar

  2. AUTOMATED REAL TIME PAVEMENT MARKING RETROREFLECTIVITY MEASUREMENTS Norbert H. Maerz, University of Missouri-Rolla, 1006 Kingshighway, Rolla MO, 65409-0660, USA. Tel: (573) 341-

    Engineering Websites

    Maerz, Norbert H.

    Retroreflectivity, Pavement markings, Stripe measurement, Night visibility, Striping. ACKNOWLEDGMENTS The authors ambient light conditions, simple painted lines would be adequate, reflecting and scattering light in every, the only source of lighting is directional, emanating from the headlamps of the vehicle travelling down

  3. 1. Briefly summarize your current pavement smoothness requirements. Smoothness measuring equipment and operators must be certified by OH DOT. Incentives and

    Engineering Websites

    Ohio DOT 1. Briefly summarize your current pavement smoothness requirements. Smoothness measuring the requirements apply to both PCC and HMA? Yes, for our main smoothness note which is for more than 3" of new AC smoothness specs. We would like to see reciprocity of certification of equipment and operators. I do expect

  4. Base reinforcement results from the addition of a geosynthetic at the bottom or within a base course to increase the structural or load-carrying capacity of a pavement system. While there is clear evidence that geosynthetic

    Environmental Management and Restoration Websites

    Zornberg, Jorge G.

    , which are characterized by the presence of expansive clays. Consequently, this Texas Department the construction of 32 test sections in the pavement of FM2 (Bryan District), reconstructed over expansive clays

  5. Document Ink bleed-through removal with two hidden Markov random fields and a single observation field

    Computer Technologies and Information Sciences Websites

    Wolf, Christian

    ://liris.cnrs.fr/christian.wolf July 2, 2007 Abstract We present a new method for blind document bleed through removal based clusters are recognized without using any color or gray value information. The pro- posed method of the verso side is not available (blind sepa- ration). In this case, the task is equivalent to a segmenta

  6. Concrete Pavement Surface Characteristics

    Engineering Websites

    #12;CP Road Map Surface Characteristics Track #12;Design Materials Construction Climate Traffic.0 Built around LMI-Selcom RoLine Sensor Laser height sensor, inertial referencing GPS, DMI encoder, video Treatments 170 miles of test surface in 20 States and 6 Countries CP Tech Center Test Sections #12;There

  7. Pavement Recycling Machine 

    Texas A&M University - TxSpace

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

    2011-08-29

    and fuel consumption are becoming more and more severe. The appeal for low emissions and high fuel economy from the cars is urgent and arouses great attention from different realms of the society. To solve this problem, many alternative drive trains..., and the failure of new oil findings to complement on a global scale, it is necessary to explore other alternative energy sources. The statics from the Department of Energy show the major consumers of the petroleum are cars and trucks [1]. During 1970s...

  8. SUSTAINABLE PAVEMENTS Description

    Engineering Websites

    sustainability. Transportation departments may soon be federally mandated to incorporate carbon footprint during wet weather conditions by draining water off the road through a porous surface. The picture above

  9. SHOULDER PAVEMENT UPGRADE Description

    Engineering Websites

    by simplifying designs and limiting disruptions to traffic. · Reduces impacts and disruptions normally caused-lane traffic. Non-continuous or inadequate shoulders must be catalogued and upgraded. Safety concerns must be addressed with decisions to upgrade and use shoulders. Design modifica- tions will be required at entrance

  10. Pavement Design TTP Orientation Seminar

    Energy Storage, Conversion and Utilization Websites

    Handy, Susan L.

    , rubber modifiers · Portland cement concrete is 70% aggregate by volume; 11% portland cement; up to 25% of cement replaced by fly ash; some steel · Nearly all of these materials can be perpetually recyclable

  11. Concrete Pavements Surface Characteristics Program

    Engineering Websites

    longitudinal, 12 transverse) 59 Drag (Burlap, Turf, Broom, Belt, Carpet) 10 Shot Peened 5 Exposed Aggregate 2) Trf.Drag(Hvy)(CO-202-1,C) 3/4"L.Tine1/16"D+Turf(IA-101-4,C) D.Grnd(CO-202-1,WP) Trf.Drag(Hvy)(CO-202.Drag(Hvy)(IA-101-2,C) Brlp.Drag(Hvy)(IA-101-4,C) Crpt.Drag-SnglSaw(KS-205-1,WP) 3/4"L.Tine1/16"D+Turf(IA-101-2,WP

  12. Concrete Pavement Surface Characteristics Program

    Engineering Websites

    -grooving), Sta. 21+400 to 22+200 Surface C, Turf Drag + Longitudinal Grooving (pre- and post-grooving), Sta. 22+200 to 23+000 Surface D, Turf Drag, Sta. 23+200 to 23+800 Surface E, Conventional Diamond Grinding (pre m) PCC C Turf Drag + Longitudinal Grooving** EB Right 2625 (800 m) PCC D Turf Drag EB Right 1968

  13. Gina Ahlstrom Concrete Pavement Engineer

    Engineering Websites

    and Selecting the Appropriate Measures for Preventing Deleterious Expansion in New Concrete Construction by implementing routing testing with petrography and laboratory expansion tests. Encouraged to use ASTM C 1293 combinations. Expansion criteria is 0.10% at 14 days. Caution Many aggregates fail theAMBT, but do not cause

  14. FRP Dowels for Concrete Pavements

    Engineering Websites

    Manitoba in Partial Fulfillment ofthe Requirements for the Degree of Master of Science Department of Civil to the expansion of steel during the corrosion process. A corrosion-free alternative, such as Fiber Reinforced. FRP materials have exceptionally high tensile strength in the direction of the fibers, however, it has

  15. Concrete Pavement Sustainability Sustainability Track Leadership

    Engineering Websites

    sustainable technologies · Multiple conferences in the next year #12;Cement Driven Initiatives · ASTM C595 blended cements · ASTM C1157 performance cements ­ Portland-limestone cements · High-volume fly ash mixtures ­ Alkali-activated systems · Inorganic polymers (geopolymers) · Carbon sequestering cements #12;In

  16. European Scanning Tour of PCC Pavements

    Engineering Websites

    and blended cements used to mitigate alkali- silica reaction · High level of attention given to aggregate recycling of materials #12;11 of 33 Findings: Construction and Materials · Moderate-alkali cements

  17. WINTER PERFORMANCE ASSESSMENT OF PERMEABLE PAVEMENTS

    Environmental Management and Restoration Websites

    , PERVIOUS CONCRETE, AND CONVENTIONAL ASPHALT IN A NORTHERN CLIMATE BY KRISTOPHER M. HOULE BS, Worcester the University of New Hampshire, the Northern New England Concrete Promotion Association (NNECPA), the Northeast Cement Shippers Association, and the National Ready Mix Concrete Association (NRMCA). I would like

  18. SEPTEMBER 2015 National Concrete PavementTechnology

    Engineering Websites

    to the above topics, the CPTech Center has developed a new series of four web-based training modules, IA 50010-8664 515-294-8103 www.cptechcenter.org This document lists training workshop topicsProgramBooklet.pdf. SCHEDULE A WORKSHOP For details about any of these training opportunities, or to schedule a workshop

  19. of Concrete Pavements Joint PerformanCe

    Engineering Websites

    . Government Accession No. 3. Recipient's Catalog No. 4. Title and Subtitle 5. Report Date Interim Guide the latest knowledge and implement proven techniques. Emphasizing that water is the common factor in most

  20. Demonstration of Technologies for Concrete Pavement Quality

    Engineering Websites

    origin, sexual orientation, gender identity, genetic information, sex, marital status, disability, disability, gender identity, national origin, pregnancy, race, religion, sex, sexual orientation or veteran

  1. NOVEMBER 2015 National Concrete PavementTechnology

    Engineering Websites

    Deterioration: Recent Findings to Reduce the Potential for Damage (June 2015) (Map Brief) Constructing Concrete of Ternary Mixtures in Concrete (May 2014) Integrated Materials and Construction Optimization: A State) (FHWA website) Materials-Related Distress: Hardened Cement Paste (June 2015) (Tech Brief from Best

  2. Empirical Comparison of Statistical Pavement Performance Models

    Engineering Websites

    ; Predictions; Comparative studies. Introduction A key component in making design, construction, maintenance and forecasting the effect of the aforementioned decisions on fu- ture conditions. Condition forecasts are generated with perfor- mance models, which are mathematical expressions that relate condition data to a set

  3. Model based pavement-vehicle interaction simulation for life cycle assessment of pavements

    MIT - DSpace

    Akbarian, Mehdi

    2012-01-01

    Responsible for about a third of the annual energy consumption and greenhouse gas (GHG) emissions, the U.S. transportation Network needs to attain a higher level of sustainability. This is particularly true for the roadway ...

  4. Sampling & Testing Guide-Minimum Frequency PORTLAND CEMENT CONCRETE PAVEMENT, PAVEMENT WIDENING, BASE WIDENING

    Engineering Websites

    QUALITY CONTROL INDEPENDENT ASSURANCE & VERIFICATION S&T REMARKSMATERIAL OR CONSTRUCTION ITEM TESTS METHOD-Resident Construction Engineer/Project Engineer IA-Independent Assurance ASD-Approved Shop Drawing Cert C-Type C) Units 2 QUALITY CONTROL INDEPENDENT ASSURANCE & VERIFICATION S&T REMARKSMATERIAL OR CONSTRUCTION ITEM

  5. Dynamic response of guardrail systems encased in pavement mow strips 

    Texas A&M University - TxSpace

    Seckinger, Nathaniel Ryan

    2002-01-01

    material stiffness of the confining layers around the posts, this practice changes the dynamic response of the guardrail system to the impact of a vehicle. This research aims to analyze existing mow strip configurations by using experimental testing...

  6. Combined permeable pavement and ground source heat pump systems 

    Edinburgh, University of - Research Archive

    Grabowiecki, Piotr

    2010-01-01

    the sub?base. Salmonella sp, Escherichia coli, Enterococci and total heterotrophic bacteria were analysed in order to assess potential risk to health. Supplementary carbon dioxide monitoring indicated relatively high microbial activity on the geotextile...

  7. Multi-period optimization of pavement management systems 

    Texas A&M University - TxSpace

    Yoo, Jaewook

    2004-09-30

    to the activity performed on a highway network over an analysis period. It is assumed that the unused portion of the budget for one period can be carried over to subsequent periods. Dynamic Programming (DP) and Branch-and-Bound (B-and-B) approaches are combined...

  8. Nonwoven Geotextile Interlayers for Concrete Pavements and Overlays

    Engineering Websites

    per unit area 500 g/m² (14.7 oz/sq.yd) 550 g/m² (16.2 oz/sq.yd) ISO 9864 (ASTM D 5261) Thickness.10 in.) [c] At 200 kPa (29 psi): 1.0 mm (0.04 in.) ISO 9863-1 (ASTM D 5199) Wide-width tensile strength 10 kN/m (685 lb/ft) ISO 10319 (ASTM D 4595) Wide-width maximum elongation 130% ISO 10319 (ASTM D

  9. Complex Modulus Prediction of Asphalt Concrete Pavement Cores 

    Texas A&M University - TxSpace

    Ling, Meng

    2013-12-02

    and Texas field cores and three types of asphalt mixtures including hot mix asphalt (HMA), foaming warm mix asphalt (FWMA), and Evotherm warm mix asphalt (EWMA) were used. There were nearly forty field cores with different aging times from these three...

  10. Belen Alexander Municipal Airport (E80) Pavement Condition and Analysis

    Environmental Management and Restoration Websites

    Cal, Mark P.

    Airport (E80) PCI Branch Map, Nov. 9, 2006 7 ...........................Figure 3. Belen Alexander ....................................................................................................................................Estimates 9 ....Figure 8. Belen Alexander Municipal Airport (E80) Predicted PCI Branch Map for 2010 16 ....Figure 9

  11. Double Eagle II Airport (AEG) Pavement Condition and Analysis

    Environmental Management and Restoration Websites

    Cal, Mark P.

    ...............................................................................................2. Soil and Aggregate Analysis 9 ...................................................Figure 3. Base and Subgrade Analysis for Runway 4-22 9 ......................................................................................................................Runway 4-22 9 .................................Figure 4. Base and Subgrade Analysis for Taxiway 2

  12. Clayton Municipal Airport (CAO) Pavement Condition and Analysis

    Environmental Management and Restoration Websites

    Cal, Mark P.

    .............................................................................................................................Estimates 9 .............................................................................................2. Clayton Municipal Airport (CAO) Predicted PCI Map for 2010 16 ......................Figure 9. Clayton as a Function of Time 21 .................Table 9. Estimated Maintenance and Rehabilitation (M&R) Actions

  13. Salt Frost Deterioration in Concrete Pavement --Causes and Mitigation

    Engineering Websites

    temperature, a vacuum with low partial pressure of the water develops around the ice which starts a cryogenic is essentially a hydraulic pressure-induced mechanism. Growth of ice front pushes liquid or vapor and hydraulic

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

    Engineering Websites

    the new changes soon. Smoothness measurement equipment to be used for control and for acceptance testing provision uses a 0.2 inch blanking band. This will change to a zero blanking banking band in the new

  15. Regular Inspection and Maintenance Guidance for Porous Pavements

    Environmental Management and Restoration Websites

    . Inspection Activities Visual inspections are an integral part of system maintenance. This includes monitoring. Signage should display limitation of design load (i.e. passenger vehicles only, light truck traffic, etc

  16. CHECKLIST FOR INSPECTION OF POROUS PAVEMENTS Location: Inspector

    Environmental Management and Restoration Websites

    /Corrective Action 1. Salt / Deicing *Note complete winter maintenance guidance is available at UNHSC Use salt only for ice management S U Piles of accumulated salt removed in spring S U 2. Debris Cleanup (2-4 times a year

  17. Impact of Curing Methods on Curling of Concrete Pavements

    Engineering Websites

    temperature #12;moisture temperature dry wet #12;moisture temperature dry wet less dry #12;moisture temperature dry wet less dry #12;moisture temperature dry wet less dry #12;moisture temperature dry wet less dry wet less wet #12;moisture temperature dry wet less dry wet less wet cold less cold #12;moisture

  18. PRECAST CONCRETE PAVEMENT SLAB SYSTEMS (Tollway) Effective: March 30. 2009

    Engineering Websites

    together by wire ties, and extra tie bars shall be furnished as may be necessary for maintaining satisfactory rigidity during handling and placing. Spot welding will be permitted where approved by the Engineer. Sufficient thermoplastic or wire chairs shall be furnished for supporting the reinforcement

  19. PARTIAL-DEPTH REPAIR OF CONCRETE PAVEMENTSCONCRETE PAVEMENTS

    Engineering Websites

    . Government Accession No. 3. Recipient's Catalog No. 4. Title and Subtitle 5. Report Date Guide for Partial portland cement concrete QA quality assurance QC quality control w/c water/cement Figure Sources

  20. Mechanistic modeling of roughness on continuously reinforced concrete pavement 

    Texas A&M University - TxSpace

    Sriraman, Supriya

    1996-01-01

    of mechanistic modeling. The laboratory test is described in detail. Existing roughness models were reviewed. The data acquisition process, data compilation and data analysis are described. The form of the IRI model is explained. The method employed to arrive...

  1. Tolerable Strains for HMA Overlays over Concrete Pavements

    University of Kansas - KU ScholarWorks

    Gautam, Ashwani

    2009-06-10

    .5in and 2in were chosen. Direct shear box tests and semi-circular bend tests were conducted on these chosen HMA mixtures to characterize their shear and tensile properties respectively. Crack width was simulated in lab by steel bars having thickness 0...

  2. Guidance for Improving Foundation Layers to Increase Pavement

    Engineering Websites

    does not discriminate on the basis of race, color, age, ethnicity, religion, national origin, pregnancy, creed, disability, gender identity, national origin, pregnancy, race, religion, sex, sexual orientation

  3. TWO LIFT PCC PAVEMENTS TO MEET PUBLIC NEEDS

    Engineering Websites

    and cost drive many away from two lift. PTEC99PTEC99PTEC99 US CONSTRUCTION EXPERIENCEUS CONSTRUCTION ­ plants, placers, pavers Definition of low quality layer ­ strength, durability, cost, etc.? Construction surface materials against the savings in local cost for the base layer Involve the construction industry

  4. Heavy Metals in Glass Beads Used in Pavement Markings 

    Texas A&M University - TxSpace

    Mangalgiri, Kiranmayi

    2012-07-16

    beads. In the analysis of the field site samples of soil containing glass beads obtained from a glass bead storage and transfer facility, the mass content of beads in the soil varied from a mean of 19% to 78% depending on the location within the facility...

  5. +0 000 FFL Main Space -0 680 Pavement Level

    Mathematics Websites

    Wagner, Stephan

    to engineer's spec, roofing to later detail demolish exist roof new brick parapet wall to be built on top detail remove exist mild steel stair existing surface bed demolished to new ground levels new ms entrance gate new brickwork for extent of new entrance opening below x 50mm SA Pine purlins at max 1200mm

  6. Deming Municipal Airport (DMN) Pavement Condition and Analysis

    Environmental Management and Restoration Websites

    Cal, Mark P.

    .........................................Table 1. Deming Municipal Airport (RTN) Aircraft Operations (2009) 5 .................Table 2. Deming Municipal Airport (DMN) Predicted Aircraft Operations 2009-2029 6 ......................Figure 2. Deming

  7. Model studies of stresses in upper layers of pavements 

    Texas A&M University - TxSpace

    Subbaraju, Bhupatiraju

    1955-01-01

    A methodology is presented for basing quality improvement decisions in civil engineering design firms upon historical data, statistical methods, and hydrologic modeling techniques. Statistical Process Control (SPC) is a quality management tool...

  8. MNROAD SPECIAL PROVISIONS FOR COMPOSITE PAVEMENT CONSTRUCTION Section Page

    Engineering Websites

    .....................................................................................................19 S-24 (1717) AIR, LAND AND WATER POLLUTION IMPLEMENTATION OF CLEAN AIR ACT AND FEDERAL WATER POLLUTION CONTROL ACT .......................................................................................19 S-25 (1717) NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) PERMIT...........21 S-26

  9. Incorporating Network Considerations into System-level Pavement Management Systems

    University of California eScholarship Repository

    Medury, Aditya

    2013-01-01

    dynamics within the system-level infrastructure managementManagement Using Approximate Dynamic Programming”. In: Journal of Infrastructure Systemsdynamic programming framework for infrastructure management systems.

  10. Early age delamination in concrete pavements made with gravel aggregates 

    Texas A&M University - TxSpace

    Liu, Juanyu

    2009-06-02

    design combination was subsequently chosen and validated. Geometric parameters were proposed to characterize aggregate shape properties relative to bonding performance with the facilitation of the Aggregate Imaging System. A rating system based on utility...

  11. 3-D Seismic Methods for Shallow Imaging Beneath Pavement

    University of Kansas - KU ScholarWorks

    Miller, Brian

    2013-05-31

    several tens of meters of the subsurface has become an important technique for near-surface investigations. A new method for acquiring and visualizing surface wave information in three-dimensions is demonstrated. As will be shown, a volume of shear wave...

  12. TECHNOLOGY DEPLOYMENT A central mission of the National Concrete Pavement

    Engineering Websites

    , a printed manual, and a site visit. A day in advance, staff from the CP Tech Center travel to the host state Technology Center (CP Tech Center) at Iowa State University is to accelerate the deployment of concrete · CP Road Map-related topics Your agency is invited to participate in one or more of these training

  13. Asphalt Pavement Aging and Temperature Dependent Properties through a Functionally

    Mathematics Websites

    Paulino, Glaucio H.

    Viscoelastic Model ­I: Development, Implementation and Verification Eshan V. Dave, Secretary of M&FGM2006 (Hawaii) Research Assistant and Ph.D. Candidate Glaucio H. Paulino, Chairman of M&FGM2006 (Hawaii) Donald

  14. Structural Change, Impacts and Opportunities For Concrete Pavement

    Engineering Websites

    ;Demographics Putting Things Into Context: Point 1. #12;US Population Millions of Persons 190 210 230 250 270 Developed Economies Asia, Excl Japan #12;Oil Price History $ Per Barrel, West Texas Intermediate 0 20 40 60 Formed Asia (excluding Japan) = 20% world Oil Demand OPEC Induced Energy Crisis New Reality: Emphasis

  15. Exploration of Pavement Oxidation Model Applications and Field Validation 

    Texas A&M University - TxSpace

    Cui, Yuanchen

    2014-08-11

    Collected in 2004.. ........................... 29 Figure 7 MnRoad Aging Comparison of the Core Collected from Wheel Path aaaaaaain 2008... ................................................................................................................. 30 Figure 8 MnRoad Aging Comparison of the Core Collected from Wheel Path aaaaaaain 2010 ................................................................................................................. 30 Figure 9 MnRoad Aging...

  16. An Approach to Point Based Approximate Color Bleeding With Volumes

    Computer Technologies and Information Sciences Websites

    Wood, Zoë J.

    illustrates a comparison of our algorithm and Monte Carlo ray traced results. 1.1 Background The goal are presented here, (based off of [3]). In contrast to polygonal models, in volumes, as light passes through as the isotropic or constant phase function which represents the BRDF analog for participating media [4]. Finally

  17. No Chemical, Zero Bleed Cooling Tower Water Treatment Process 

    Texas A&M University - TxSpace

    Coke, A. L.

    1992-01-01

    treatment process. This is an alternative to conventional chemical treatment. Beginning with a suction pump to draw water out of the tower sump, water goes through a permanent magnetic descaler to increase the water solubility and begin the scale.... in a shorter than normal life span than the equipment is engineered for. CHEMICAL TREATMENT As you know, the conventional chemical treatment includes biocides, corrosion inhibitors, scale inhibitors, and anti-foaming agents to treat the various...

  18. Testing Rabbit Bleeds By Elisa Claire Walczak January 1996

    Biology and Medicine Websites

    Mitchison, Tim

    (peptide conjugated to BSA) diluted in TBS (50 ul/well) ON at 4 deg C. 2. Remove antigen and rinse wells 2 wells 2Xs with TBST. 5. Incubate in primary antibody diluted in Blocking Buffer for 2 hr at RT. I do tripling dilutions beginning at 1/10 (50 ul/well). 6. Remove primary antibody and rinse wells 4Xs with TBST

  19. Biomedical companies catch and bleed horseshoe crabs for the pro-

    Environmental Sciences and Ecology Websites

    of pathogenic gram- negative bacteria in injectable drugs and implantable medical and dental devices (Mikkelsen contamination, and its increasing use in medical and phar- maceutical laboratories makes it a highly valued

  20. What is hemophilia A? Prolonged bleeding after injury and surgery

    Biology and Medicine Websites

    Brutlag, Doug

    ;References http://www.ncbi.nlm.nih.gov/books/NBK22260/ http://www.nlm.nih.gov/medlineplus/ency/article/000538.htm http://www.nhlbi.nih.gov/health/health-topics/topics/hemophilia/ treatment.html http://www.ncbi.nlm.nih.gov

  1. TOol using STAcked DAta Final report

    Engineering Websites

    ......................................................................................................................................... 10 Pavement Condition.................................................................................................................. 10 Bridge Condition ............................................................................................................11 Pavement Condition and Crash Frequency Link

  2. 1. Report No. SWUTC/10/476660-00003-3

    Energy Storage, Conversion and Utilization Websites

    ) evaluating retroreflectivity measurement techniques for profiled and rumble stripe pavement markings; 3, Visibility, Pavement Markings, Traffic Signs, Schools, Pavement Management, Concrete, Hydration 18

  3. University of Idaho The University of Idaho Department of Civil Engineering invites applications for tenure-track

    Computer Technologies and Information Sciences Websites

    Guo, Dongning

    .Sustainable Infrastructure Materials including pavement materials for asphalt and concrete pavements. 2 such as innovative pavement materials (WMA, SMA, and fiber-reinforced asphalt), implementation and local calibration

  4. Technical Paper ISSN 1997-1400 Int. J. Pavement Res. Technol. 3(5):234-240 Copyright @ Chinese Society of Pavement Engineering

    Materials Science Websites

    Bentz, Dale P.

    50 % or more of the Portland cement with fly ash, a significant reduction is achieved in the carbon performance as conventional (cement-only) mixtures, performance problems are often encountered at early ages examined in laboratory studies include cement type, fly ash class, the provision of internal curing

  5. Summary of Construction Activities and Results from Six Initial Accelerated Pavement Tests Conducted on Asphalt Concrete Pavement Section for Modified-Binder Overlay

    University of California eScholarship Repository

    Bejarano, Manuel O.; Morton, Bruce S.; Scheffy, Clark

    2005-01-01

    wet months, but the sections tested during the dry period had longer pavementwet season. Figure 27 shows the variation of asphalt concrete modulus with pavementpavement elevations. The base material was compacted at the optimum water content for the maximum wet

  6. Technical Report Documentation Page 1. Report No.

    Energy Storage, Conversion and Utilization Websites

    of Portland Cement Concrete Pavements 6. Performing Organization Code 7. Author(s) William James Wilde, Steve for portland cement concrete pavements which considers all aspects of pavement design, construction Life Cycle Cost, Pavement Performance, Portland Cement Concrete Pavement, Highway Pavement Construction

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

    Texas A&M University - TxSpace

    Al-Azri, Nasser Ahmed

    2002-01-01

    in this road. Twenty-four hours of PAV lab aging was found to simulate 2.5 years in the field. No significant difference was found between the top and bottom lift hardening rates. Both lifts seemed to harden at the same rate. Moreover, seal coat asphalt...

  8. An investigation of factors that significantly affect pavement maintenance costs in Texas 

    Texas A&M University - TxSpace

    Fogle, Kendall Lee

    1998-01-01

    In the past twenty years, the focus of the highways industry has shifted from the construction of new highways to the maintenance of those which already exist. At the same time, the maintenance budgets of highway agencies are being significantly...

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

    Texas A&M University - TxSpace

    Luce, Anthony David

    2009-05-15

    This thesis consists of two parts. The first part includes analyses of the correlation between the results of two Aggregate Imaging System (AIMS) units. These analyses have led to refinements of the AIMS analysis methods ...

  10. Summary Report on the Evaluation of Rigid Pavement Long-life Strategies

    University of California eScholarship Repository

    Jones, David; Harvey, John T; Kohler, Erwin R.

    2008-01-01

    adverse reactions between new cements and existing cement-the effect of new fast-setting cements on slab curecements meeting the requirements for early opening to carry traffic, and develop methods to screen new

  11. Pre- and Postconstruction Analysis of the Interstate 15 (Devore) Concrete Pavement Reconstruction Project

    University of California eScholarship Repository

    Lee, E. B.; Choi, K.; Harvey, John T

    2005-01-01

    new cross section of 290-mm doweled slabs of Type III portland concrete cement (cement-treated base and part of aggregate base (AB) Grade and compact AB Pave newcement UCPRC-RR-2005-14 concrete (FSHCC) with a four-hour curing time, (2) a new

  12. Life-Cycle Assessment of Highway Pavement Alternatives in Aspects of Economic, Environmental, and Social Performance 

    Texas A&M University - TxSpace

    Mao, Zhuting

    2012-10-19

    in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved by: Co-Chairs of Committee, Kunhee Choi Edelmiro Escamilla Committee Members, Sarel Lavy-Leibovich Ivan Damnjanovic Head of Department, Joe Horlen August...; to my cousin, Hui Liu, for always being an example for me. vii ACKNOWLEDGEMENTS I would like to thank my committee co-chairs, Dr. Kunhee Choi, and Dr. Edelmiro Escamilla, and my committee members, Dr. Sarel Lavy-Leibovich, and Dr. Ivan...

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

    University of California eScholarship Repository

    Horvath, Arpad

    2003-01-01

    Coal Fly Ash Flue Gas Scrubber Material Foundry Sands KilnFly Ash RAP RCP (RCM) Bottom Ash Siliceous Gravel Siliceous Sandfly ash content flowable fill materials, triaxial strength tests have indicated friction angles of 20° for mixes containing fine sand and

  14. Pavement Through the Prairie, Wheels in the Wetlands: The battle over a road in Lawrence, Kansas

    University of Kansas - KU ScholarWorks

    Heiman, Kelly

    2012-04-01

    of Transportation and the US Army Corps of Engineers. The Federal Highway Administration played an important role in the first phase of construction on the South Lawrence Trafficway by investing in the project. The Lawrence and Douglas County Commissions... Impact Statement built on arguments made by earlier city planning documents, providing specific information about population growth. It projected future population growth using travel pattern data from the 1971 Lawrence Area Transportation Study...

  15. Use of Falling Weight Deflectometer Data to Quantify the Relative Performance of Reinforced Pavement Sections

    Environmental Management and Restoration Websites

    Zornberg, Jorge G.

    section, base reinforced with 3 different geosynthetic products, lime stabilized subbase and combinations benefits of the 3 types of geosynthetic reinforcements as well as of lime stabilization and quantify light on the relative merits of base reinforcement against lime stabilization. INTRODUCTION For the past

  16. Assessment of durability performance of "Early-Opening-to-Traffic" Portland Cement Concrete pavement and patches 

    Texas A&M University - TxSpace

    Shrestha, Pradhumna Babu

    1999-01-01

    This study relates the assessment of durability to ''early-opening-to-traffic'' (EOT) portland cement concrete (PCC). Several factors were identified relative to the performance of EOT PCC. Each of these factors was considered in terms of freeze...

  17. Summary Report on the Evaluation of Rigid Pavement Long-life Strategies

    University of California eScholarship Repository

    Jones, David; Harvey, John T; Kohler, Erwin R.

    2008-01-01

    potential adverse reactions between new cements and existingReactions In the first phase of the study: • Calcium aluminate cementreactions. In the investigation into sulfate attack, four portland cement

  18. Advanced Characterisation of Pavement and Soil Engineering Materials Loizos, Scarpas & Al-Qadi (eds)

    Engineering Websites

    Paulino, Glaucio H.

    developed by Dempsey et al. (1990) based upon air temperatures obtained from National Weather Service data (crack/seat, break/seat, and rubblization), modification of asphalt properties, crack arresting

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

    University of California eScholarship Repository

    Rao, Shreenath; Roesler, Jeffery R.

    2005-01-01

    reaction) were used in ILSL97 to estimate the crack rotation ?, due to a 57-kN dual wheelwheel widths and spacings Elastic moduli, Poisson’s ratio, coefficients of thermal expansion, unit weights Modulus of subgrade reaction

  20. Unintended Impacts of Increased Truck Loads on Pavement Supply-Chain Emissions

    University of California eScholarship Repository

    Sathaye, Nakul; Horvath, Arpad; Madanat, Samer

    2009-01-01

    refineries sector.   Table E.11  presents the combined emissions emissions, which should be relatively representative of U.S.   averages for petroleum refineries and Emission factors associated with bitumen production are based entirely on the EIO?LCA petroleum  refineries 

  1. Development of a Pavement Quality Index for the State of Ohio

    University of California eScholarship Repository

    Reza, F; Boriboonsomsin, K; Bazlamit, S

    2006-01-01

    Civil Engineering Ohio Northern University 525 South Main Street, Ada, OH 45810, USACivil Engineering Ohio Northern University 525 South Main Street, Ada, OH 45810, USACivil Engineering Ohio Northern University 525 South Main Street, Ada, OH 45810, USA

  2. An Asset Management Framework Based on Field Performance of Pavement Markings 

    Texas A&M University - TxSpace

    Madiri, Sam

    2011-08-08

    measure on which the analysis and application was carried out. Two case studies were conducted, one for statistical techniques with retroreflectivity data collected by the National Transportation Product Evaluation Program (NTPEP) on U.S. Highway 78...

  3. IMPROVEMENT REVISIONS TO SPECIFICATIONS TO EXTEND THE LIFE OF CONCRETE PAVEMENTS

    Engineering Websites

    aggregates · Mineral Admixture Usage 2008: Limited to substitution for one of the following: 10% silica fume, 20% fly ash or 30% GGBFS. 2012: Contractor may substitute any combination of mineral admixtures

  4. A procedure for automatically linking a geographical database and a pavement attribute database 

    Texas A&M University - TxSpace

    Lehmann, Erwin August

    1996-01-01

    . To achieve a link between a PMS attribute database and a GIS spatial database requires that the databases share a common unique identifier. This paper summarizes the efforts to identify a common unique identifier and to automatically link a PMS attribute...

  5. Stochastic Modeling of Future Highway Maintenance Costs for Flexible Type Highway Pavement Construction Projects 

    Texas A&M University - TxSpace

    Kim, Yoo Hyun

    2012-07-16

    increased needs to rebuild deteriorated transportation networks. For major highway maintenance projects, a federal rule enforces to perform a life-cycle cost analysis (LCCA). The lack of analytical methods for LCCA creates many challenges of STAs to comply...

  6. Environmental, Economic, and Social Impacts of Concrete Pavement Material Choices: A Life-Cycle Assessment Approach 

    Texas A&M University - TxSpace

    Park, Hyunsoung

    2014-12-12

    the perspective of life-cycle assessment. This research analyzes the three different types of concrete alternatives such as Portland Cement Concrete (PCC), Fast Setting Hydraulic Cement Concrete (FSHCC) and Rapid Strength Concrete (RSC) with as well as without...

  7. ACCELERATED PORTLAND CEMENT CONCRETE PAVEMENT PATCHING (Tollway BDE) Effective: July 16, 2010

    Engineering Websites

    ) ..........................................................1027.01 (l) Calcium Chloride (Note 6 of the slab. Note 6. The calcium chloride accelerator, when permitted by the Tollway, shall be Type L (Liquid) with a minimum of 32.0 percent by weight of calcium chloride." #12;EQUIPMENT Equipment for any precast patching

  8. Modeling the Effect of Curing on Early Age Distress Potential of Concrete Pavement 

    Texas A&M University - TxSpace

    Bari, Muhammad Ehsanul

    2014-04-11

    was indicative of the effectiveness of curing application provided during construction. Corner deflection model for predicting lift-off displacement and climatic stress model for predicting crack formations were formulated in order to predict the distress...

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

    Texas A&M University - TxSpace

    Hastings, Charles Patrick

    1997-01-01

    transform infrared (FT-IR), gel permeation chromatography (GPC), and asphaltene content (using heptane). Asphalt binders extracted from field cores were tested using FT-IR and GPC. Retained binders and aggregates were combined in accordance...

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

    University of California eScholarship Repository

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

    2009-01-01

    Fatigue Cracking . 40 Table 4.5: Single-Variable Cox Regression Model for Wheelpath Crack Initiation .fatigue performance of the four mix types. Survival Analysis Survival analysis was used to model the crack initiation.

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

    Texas A&M University - TxSpace

    Rezaei, Arash

    2012-02-14

    .................................................................................................. 1 Problem Statement .............................................................................................. 3 Objectives... ........................................................................................................... 3 Organization of the Study ................................................................................... 4 II LITERATURE REVIEW...

  12. State Report Questions Fall 2010 NCC Meeting 1. Briefly summarize your current pavement smoothness requirements.

    Engineering Websites

    , we did 6 pilot "ghost" specification projects with the combined spec. The intent was for the Contractor to gather the data under the "ghost" spec and analyze the data both under the old and new spec

  13. Synthesis on Use of Geosynthetics in Pavements and Development of a

    Engineering Websites

    . 3. Recipient's Catalog No. 5. Report Date Insert same date as cover publication date 4. Title Engineering Solutions, Inc. 405 Water Street, PO Box 3004 Conneaut Lake, PA 16316 11. Contract or Grant No

  14. Elastic and plastic properties of soils influencing the design of rigid pavements 

    Texas A&M University - TxSpace

    Khuri, Fuad I.

    1954-01-01

    . Srinivasa was my first teacher of elasticity and plasticity with whom I have learned fundamental mechanics in-depth. His valuable comments always served as a guideline for me to complete my dissertation. Dr. Reddy was my first teacher of linear... the graded direction of FGM having constituents with temperature dependent elastic properties, for Ti6Al-4V/Zr02.. .......................... 193 Figure 5.8 Variations of displacement field at different times along the graded direction...

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

    University of Kansas - KU ScholarWorks

    Thakur, Jitendra Kumar

    2011-01-13

    . The Mohr-Coulomb failure envelopes for RAP and RAP/geocell interface were obtained by direct shear tests. The asphalt binder and the aggregates were extracted from RAP. The extracted aggregates were tested for their properties including gradation, specific...

  16. Measuring and ReportingTire-Pavement Noise Using On-Board Sound Intensity (OBSI)

    Engineering Websites

    , but one common technique is to use a probe consisting of two microphones spaced apart by specified using microphones in a sound intensity probe configuration mounted to the outside of a vehicle, near distance. Measuring both the amplitude and phase of sound at the two microphones gives the probe

  17. A more comprehensive life cycle cost analysis of pavement materials alternatives

    MIT - DSpace

    Dunn, William Colby

    2014-01-01

    Life Cycle Cost Analysis (LCCA) is a commonly used tool in analyzing the economic viability of highway construction investments. The initial and life-cycle materials costs associated with highway construction involve a ...

  18. A new NDT tool for pavement evaluation: Step-Frequency GPR

    Engineering Websites

    ) Asphalt Base Interface Base Subgrade Interface Surface #12;External interference #12;No. of Common Offset Asphalt/Base Interface Base/Sub-grade Interface #12;Relative dielectric permittivity for a selection

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

    Texas A&M University - TxSpace

    Ramos-Aparicio, Sonia Ines

    2004-09-30

    of the Asphalt Concrete Mixture /E*/.??? 55 Creep Compliance Parameters.???????????.??.. 68 viii CHAPTER Page VII TEMPERATURE CORRECTION OF BACKCALCULATED MODULUS.???????????. 73 Prediction... Relationship between the Static Analysis and the Dynamic (Complex) Modulus /E*/?????. 105 Backcalculated AC Moduli Relationship between the Static Analysis and the Dynamic Analysis?????????..?? 113 Comparison of the Creep Compliance Parameters...

  20. Incorporating Risk and Uncertainty into Pavement Network Maintenance and Rehabilitation Budget Allocation Decisions 

    Texas A&M University - TxSpace

    Menendez Acurio, Jose Rafael

    2014-07-30

    According to the American Society of Civil Engineers, 33% of the United States’ major roads are in poor or mediocre condition with a projected funding shortfall of $549.5 billion for 2010–2015. Environmental factors, ...

  1. Bridging the Gap between Network and Project Selection Levels in Pavement Management 

    Texas A&M University - TxSpace

    Gurganus, Charles Felder

    2011-08-08

    . The research revealed there is little agreement between the output of PMIS’s Needs Estimate tool and actual construction projects. Possible reasons for this disagreement include the inability of PMIS’s Needs Estimates to consider the decision makers...

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

    Texas A&M University - TxSpace

    Kassem, Emad Abdel-Rahman Ahmed

    2011-08-08

    Mix and Base Temperatures 105oC or 135oC behind Paver (Corps of Engineers, 2000) ....................................................................................11 2-3 Static Steel Wheel Roller... ......................................................................................14 2-4 Pneumatic Tire Roller .................................................................................................. 15 2-5 Vibratory Steel Wheel Roller ................................................................................16...

  3. Advancement of Erosion Testing, Modeling, and Design of Concrete Pavement Subbase Layers 

    Texas A&M University - TxSpace

    Jung, Youn Su

    2010-10-12

    in terms of their utility to characterize subbase materials for erosion resistance. With this information, a new test configuration was devised that uses a Hamburg wheel-tracking device for evaluating erodibility with respect to the degree of stabilization...

  4. Regulation of endometrial repair and its impact on heavy menstrual bleeding 

    Edinburgh, University of - Research Archive

    Maybin, Jacqueline Ann

    2011-11-25

    Introduction: The human endometrium has a remarkable capacity for efficient cyclical repair following the inflammatory process of menstruation. Defective postmenstrual repair may contribute to the common complaint of ...

  5. If it bleeds, it leads: separating threat from mere Kestutis Kveraga,1,2

    Biology and Medicine Websites

    Barrett, Lisa Feldman

    Medical School, Boston, MA, 02115 USA, 3 Department of Psychology, Brandeis University, 415 South Street, Waltham MA 02453-2728, USA, 4 Department of Psychology, The Pennsylvania State University, University Park, PA, 16802-3103 USA, 5 Department of Psychology, 3210 Tolman Hall, University of California, Berkeley

  6. AUTOMATED ANALYSIS OF VITAL SIGNS TO IDENTIFY PATIENTS WITH SUBSTANTIAL BLEEDING BEFORE HOSPITAL ARRIVAL

    Biotechnology Websites

    Index of 1.4 or higher; sensitivity, 59%; initial systolic blood pressure (SBP) less than 110 mmHg, 50,* and Andrew T. Reisner¶ *Department of Defense Biotechnology High Performance Computing Software Applications retrospective. The APPRAISE system was 76% sensitive for 24-h packed red blood cells of 9 or more units (95

  7. Report on the National Survey to Assess the Presence of Bleeding Canker of Horse Chestnut Trees

    Renewable Energy Websites

    in Great Britain Forestry Commission Plant Health Service Edinburgh March 2008 #12;Summary Between June survey work by Forest Research's Tree Health Division Purpose of the Survey This survey was intended to to carry out this survey. Training of TSU staff by Tree Health Division (THD), on symptom recognition took

  8. Robert Otto Rasmussen Vice President,TheTranstec Group, Inc.

    Engineering Websites

    Research Engineer, Institute forTransportation at Iowa State University National Concrete Pavement@iastate.edu May 2011 Concrete Pavement Specifications for ReducingTire-Pavement Noise Concrete Pavement Surface Pavement Surface Characteristics Program (CPSCP). Part of the guidance developed includes specifications

  9. Robert Otto Rasmussen Vice President,TheTranstec Group, Inc.

    Engineering Websites

    , Snyder and Associates National Concrete PavementTechnology Center 2711 South Loop Drive, Suite 4700 Ames PavementTexture Concrete Pavement Surface Characteristics Program Introduction Pavement texture is defined by the irregularities on a pavement surface that deviate from an ideal, perfectly flat surface. As shown in Figure 1

  10. Vesicular Horizon Distribution, Properties, and Pedogenic Processes in Deserts of the Western United States

    University of California eScholarship Repository

    Turk, Judith Katherine

    2012-01-01

    soils and pavements: formation, age and relation to climate change.soils and pavements: formation, age and relation to climate change.soils and pavements: formation, age and relation to climate change.

  11. Technical Assistance Report 14-01 TA-P Joor Road Noise Level Assessment

    Biology and Medicine Websites

    Stephens, Jacqueline

    concrete roadway with an annual daily traffic (ADT) of approximately 13,500 with 7 percent trucks polyurethane foam, transverse faulting, rehabilitation, jointed concrete pavement repairs, asset management, joint load transfer, roughness, profile, pavement preservation, Uretek, Nortex, concrete pavement

  12. CEE List of Undergraduate Laboratory Needs Fall 2010 11-23-2010 CEE List of Undergraduate Laboratory Needs

    Computer Technologies and Information Sciences Websites

    Reed, Nancy E.

    ) ................................... $ 11,000 Pavement lab ­ Material, supplies, and safety equipment for CEE461) ............................................................................................................................ $ 2,000 Pavement Lab: Digital Pressure Manometer NIST Certified. Item 36 on page 8 ............ $ 500 Pavement Lab: Infrared Digital Thermometer. It

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

    Materials Science Websites

    Bentz, Dale P.

    of pavements to reduce the tire- pavement interaction noise and improve skid resistance (Brite/Euram report sufficient strength, durability, and abrasion resistance to serve as a pavement. Thus, porosity is considered

  14. Viscoelastic Functionally Graded Finite-Element Method Using Correspondence Principle

    Mathematics Websites

    Paulino, Glaucio H.

    an attractive simulation technique for modeling complicated boundary value problems such as asphalt concrete-parametric formulation. This paper emphasizes viscoelastic behavior of asphalt concrete pavements and several examples; Asphalt pavements; Concrete pavements; Finite-element method. Author keywords: Viscoelasticity

  15. PROJECT INFORMATION FORM Project Title Sustainable Mitigation of Stormwater Runoff through Fully Permeable

    Energy Storage, Conversion and Utilization Websites

    California at Davis, University of

    stormwater management best management practice (BMP) to provide low-impact infrastructure of Transportation (Caltrans) is interested in the development of fully permeable pavement Pavement Research Center (UCPRC) to develop a design for fully permeable pavement

  16. Page 1 of 20 January 2015 MICHAEL A. MOONEY, PhD, PE

    Environmental Management and Restoration Websites

    Aviation Pavement Integrity, Oklahoma Aeronautics Commission, PI, 1996-1997, $12k. 2. Development of General Aviation Airfield Pavement Management System - Phase I, Oklahoma Aeronautics Commission, PI, 1998

  17. Global Cooling: Policies to Cool the World and Offset Global Warming from CO2 Using Reflective Roofs and Pavements

    University of California eScholarship Repository

    Akbari, Hashem

    2010-01-01

    310. AMS. 2009. Geo-engineering the Climate System: A Policyclimate change becomes more pronounced, a number of scientists have proposed supplementing the full range of mitigation efforts with geo-engineering (

  18. Comparative Analysis of Cement and Lateralite on the Engineering Properties of Niger Delta Soils for Pavement Construction

    University of Cambridge - Dspace

    Alayaki, F. M.; Al-Tabbaa, A.; Meshida, E. A.; Ayotamuno, M. J.

    2015-05-13

    , Egypt. Complete Peer review History: http://www.sciencedomain.org/review-history.php?iid=1137&id=5&aid=9224 Received 11 th April 2015 Accepted 1st May 2015 Published 13 th May 2015 ABSTRACT This study investigated the effect... ://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Peer-review history: The peer review history for this paper can be accessed here: http://www.sciencedomain.org/review-history.php...

  19. Comparative Analysis of Cement and Lateralite on the Engineering Properties of Niger Delta Soils for Pavement Construction

    University of Cambridge - Dspace

    Alayaki, F. M.; Al-Tabbaa, A.; Meshida, E. A.; Ayotamuno, M. J.

    2015-05-13

    This study investigated the effect of cement and lateralite in improving some engineering properties of Niger Delta soils, classified as clayey soil, silty/clayey sand, and fine sand. Cement had very good effect in reducing the plasticity...

  20. Quantitative sustainability assessment of pavement-vehicle interaction : from bench-top experiments to integrated road network analysis

    MIT - DSpace

    Akbarian, Mehdi

    2015-01-01

    The sustainable development of our nation's roadway system requires quantitative means to link infrastructure performance to lifecycle energy use and greenhouse gas (GHG) emissions. Beside surface texture and roughness-induced ...

  1. Measuring the Effect of Uncertainty in Unit Cost and Pre-Treatment Condition on Pavement Maintenance and Rehabilitation Decisions 

    Texas A&M University - TxSpace

    Li, Jing

    2014-05-23

    Figure 4.6 DS Probability Distribution Fitted for a 9-mile PM Project on US79 form 2012 .................................................................................................................. 41 Figure 4.7 RS Probability Distribution Fitted...-S Kolmogorov-Smirnov LCCA Life-Cycle Cost Analysis LMDP Latent Markov Decision Process LR Light Rehabilitation MR Medium Rehabilitation M&R Maintenance and Rehabilitation MU Maintenance Unit NN Needs Nothing vi PM Preventive Maintenance PMP...

  2. Performance Based Mechanistic-Empirical Approach to Assess Joint Sealant Effectiveness on Sustainability of Concrete Pavement Infrastructure 

    Texas A&M University - TxSpace

    Neshvadian Bakhsh, Keivan

    2014-08-11

    . .................................................. 38 Figure 14 Water Infiltration Rates for Different Joint Dirtiness Levels. ......................... 40 Figure 15 Water Related Damages; Potholes, Corner Breaking and Wide Cracks. ........ 42 Figure 16 Three Stages of Water Transmission... Information on LTPP Sections. .................................................. 93 Table 15. Statistical Analysis for Sampled LTPP Faulting Data. .................................... 95 Table 16 Soil Samples Location and Classification (NP for Non-Plastic...

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

    Texas A&M University - TxSpace

    Esfeller, Michael Watts, Jr.

    2009-06-02

    ....................................................................................17 2.3.1.8 Dissolved Oxygen ..................................................................................18 2.3.1.9 Organic Content .....................................................................................19 2.3.1.10 Differential... Gravity......................................................................................43 3.2.1.5 Relative-Density (Unit Weight) .............................................................45 3.2.1.6 Adsorption...

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

    Texas A&M University - TxSpace

    Jin, Xin

    2012-02-14

    the carbonyl group formation in one unmodified binder (SEM 64-22) and one polymer-modified binder (SEM 70-22), aged at five elevated temperatures. Data of SEM 64-22, especially at low temperatures, showed support for a parallel-reaction model, one first order...

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

    Environmental Management and Restoration Websites

    (Quarterly) Vacuum Sweeping (Vac-Assisted Dry Sweeper Only) · Proper Construction Stabilization and Erosion are Essential for Success · Accidental Seal-Coating or Similar Surface Treatment Will Cause Failure Cost & Maintenance · Total Project Cost is Comparable for Porous Asphalt with Reduced Stormwater Infrastructure VS

  6. Development of a Pavement Maintenance and Rehabilitation Project Formation and Prioritization Methodology that Reflects Agency Priorities and Improves Network Condition 

    Texas A&M University - TxSpace

    Narciso, Paul John Ross

    2013-07-22

    Methodical maintenance and renewal of infrastructure systems is critical due to the rapid deterioration of infrastructure assets under increasing loads and environmental effects and the scarcity of resources allocated for ...

  7. Using finite element analysis of retroreflective raised pavement markers to recommend testing procedures for simulating their field performance 

    Texas A&M University - TxSpace

    Agrawal, Ravi Prakash

    2006-08-16

    of the main causes for underperformance of the RRPMs is the lack of appropriate laboratory testing standards that can test the adequacy of the RRPMs to perform in field conditions. There is a need to modify the existing standards or develop new testing...

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

    University of Kansas - KU ScholarWorks

    Thakur, Jitendra Kumar

    2013-08-31

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

  9. State DOT: Minnesota State Report Questions on NDT Testing

    Engineering Websites

    materials, concrete pavements, and overlays are you trying? · Probing o MnDOT started requiring%. 2301.3.N Thickness Requirements Provide pavement with a finished pavement thickness as shown on the Plans or as modified, in writing, by the Engineer. N.1 Procedure Construct pavement to the thickness

  10. Driving NailsDriving Nails Developing an Approach forDeveloping an Approach for

    Engineering Websites

    Concrete PavementsSustainable Concrete Pavements Through the CP Road MapThrough the CP Road Map Concrete to be driven #12;CP Road Map Concrete PavementCP Road Map Concrete Pavement Sustainability TrackSustainability Track When the CP Road Map was developed, it wasWhen the CP Road Map was developed, it was decided

  11. The falling weight deflectometer (FWD) test is one of the most com-monly used tools for nondestructive evaluation of flexible pavements.

    Fossil Fuels Websites

    Guzina, Bojan

    -frequency) force and deflection values in lieu of their peak counterparts, the static backcalculation can, elastostatic-based interpretation of the falling weight­induced force and deflection records remains the norm

  12. COLLINS, KELLY ALYSSA. A Field Evaluation of Four Types of Permeable Pavement with Respect to Water Quality Improvement and Flood Control. (Under the direction of

    Environmental Management and Restoration Websites

    Hunt, William F.

    of porous concrete (PC), two types of permeable interlocking concrete pavers (PICP) with gravel fill, and concrete grid pavers (CGP) filled with sand. The void spaces of the PICP sections differed, at 12.9 % (PICP

  13. Investigation of the benefits of carbonate cementation due to addition of low percentage of hydrated lime in the base courses of pavements 

    Texas A&M University - TxSpace

    Bhuiyan, Jasim Uddin

    1994-01-01

    that quartz-rich limestone and caliche aggregate contained little, if any, clay minerals and it was unlikely for these aggregates to experience pozzolanic reaction for that reason. Strength increases due to the addition of low percentage of lime to both...

  14. Rutting Performance of Airport Hot-Mix Asphalt Characterized by Laboratory Performance Testing, Full-Scale Accelerated Pavement Testing, and Finite Element Modeling 

    Texas A&M University - TxSpace

    Rushing, John Ford

    2014-04-25

    Hot Mix Asphalt (HMA) laboratory mixture design is intended to provide a durable, rut-resistant mixture for a given traffic type. Current mixture design procedures using the Superpave Gyratory Compactor (SGC) rely on volumetric properties...

  15. Road Materials and Pavement Design. Volume 9 No. 1/2008, pages 31 to 57 Assessment of Existing Micro-mechanical

    Engineering Websites

    Paulino, Glaucio H.

    Micro-mechanical Models for Asphalt Mastics Considering Viscoelastic Effects H.M. Yin* -- W.G. Buttlar the effective complex modulus of asphalt mastics from the mechanical properties of their constituents. Because of binders have not been considered. Moreover, due to the unique features of asphalt mastics such as high

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

    Texas A&M University - TxSpace

    Bedi, Harpreet

    2001-01-01

    these properties through an effective testing and monitoring program. Research studies have indicated that current testing protocol for pre-qualification of aggregates being used by DOT's is tenuous and needs definitive evaluation. The validity of some tests...

  17. Washington State Report Questions on NDT Testing 1. What NDT testing methods for concrete materials, concrete pavements, and overlays are you

    Engineering Websites

    Scan T2 and maturity testing. The MIT Scan has been used for forensic work. The MIT Scan T2 was demonstrated to WSDOT as a result of a FHWA Mobile Concrete Lab project. Maturity testing is a routine+85 232.0 232.7 -0.7 Maturity testing requires field verification. Contractors are normally able to verify

  18. Reflective Cracking Study: First-Level Report on the HVS Rutting Experiment

    University of California eScholarship Repository

    Jones, David; Harvey, John T; Steven, B.

    2008-01-01

    the Caltrans/Industry Rubber Asphalt Concrete Task Group (Rubber Pavements Association, Valero Energy Corporation, and Paramount Petroleum which contributed funds and asphaltasphalt concrete pavements in California. The study includes mixes modified with rubber and

  19. State DOT: Wisconsin DOT State Report Questions on NDT Testing

    Engineering Websites

    for concrete materials, concrete pavements, and overlays are you trying? WisDOT has experimentally tried constructed PCC pavements. WisDOT also plans to try in 2012 to experimentally use the MIT SCAN T2 device

  20. Technical Report Documentation Page 1. Report No. 2. Government Accession No. 3. Recipient's Catalog No.

    Engineering Websites

    . Distribution Statement Concrete pavement, concrete materials, construction, hydration, materials. Performing Organization Code Integrated Materials and Construction Practices for Concrete Pavement: A State Organization Report No. 9. Performing Organization Name and Address 10. Work Unit No. (TRAIS) National Concrete

  1. Stormwater BMPs for Trout Waters Coldwater Stream Design Guidance for Stormwater Wetlands,

    Environmental Management and Restoration Websites

    Hunt, William F.

    . During a storm event, heat is transferred from pavement and roof tops to stormwater runoff, with runoff temperatures at times exceeding 110°F. Because most of the heat is concentrated near the pavement or rooftop

  2. JOINT DETERIORATION MONITORING FOR SELECTION OF PROPER PRESERVATION TYPE AND TIMING

    Engineering Websites

    JOINT DETERIORATION MONITORING FOR SELECTION OF PROPER PRESERVATION TYPE AND TIMING Research Problem Statement Premature deterioration at concrete pavement joints reduces concrete pavement life Roadmap that has resulted in multiple studies dealing with mechanisms that cause joint deterioration

  3. Application of graphical method in analyzing falling weight deflectometer (FWD) data 

    Texas A&M University - TxSpace

    Kim, Min-Gu

    1999-01-01

    Deflection measurements have long been used to evaluate the structural capacity of in-situ flexible pavements. The structural evaluation of flexible pavements is recently carried out mostly with the Falling Weight Deflectometer ...

  4. ELIMINATION OF COVERS IN COMPLETENES SZYMON DOLECKI

    Mathematics Websites

    Dolecki, Szymon

    ´ik are extended and refined. Hereditary completeness is dually character- ized (in terms of pavements of the upper of an epitopology is equivalent to the existence of a pavement of cardinality at every element of the upper Kura

  5. A real-time computer vision system for vehicle tracking and trac surveillance

    Computer Technologies and Information Sciences Websites

    Malik, Jitendra

    ®cant problem. Early solutions attempted to lay more pavement to avoid congestion, but adding more lanes towards non-invasive detectors mounted beyond the edge of the pavement. One promising approach is vehicle

  6. Optimal Location of Infiltration-Based Best Management Practices for Storm Water Management

    Geosciences Websites

    Vogel, Richard M.

    include infiltration trenches, pervious pavement, grass swales, buffer strips, detention, retention infiltration basins, rain gardens, and pervious pavements, to the use of swales and curb cuts to direct runoff

  7. Updated version forthcoming in the International Journal of Theoretical and Applied Finance

    Mathematics Websites

    Brigo, Damiano

    Fitch Solutions and Dept. of Mathematics, Imperial College 101 Finsbury Pavement, EC2A 1RS London. E Finsbury Pavement, EC2A 1RS London. E-mail: kyriakos.chourdakis@fitchsolutions.com Abstract We consider

  8. MWGen: A Mini World Generator Jianqiu Xu, Ralf Hartmut Guting

    Computer Technologies and Information Sciences Websites

    Güting, Ralf Hartmut

    , metro network, pavement areas and indoor. Each environment is also called an infrastructure. All outdoor to the transportation mode, like walking in the pavement, driving along the road, or taking a bus. At the same time

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

    Texas A&M University - TxSpace

    Rahmani, Eisa

    2015-05-01

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

  10. Opening criteria for accelerated paving techniques 

    Texas A&M University - TxSpace

    Johnson, Jason Leonard

    1993-01-01

    Fast track paving or accelerated pavement design is the rapid replacement of portland cement concrete pavement, allowing for the reopening to traffic under specific time requirements. The purpose of this research is to develop opening criteria...

  11. A review of "The Journal of William Dowsing: Iconoclasm in East Anglia During the English Civil War." by Trevor Cooper, ed. 

    Texas A&M University - TxSpace

    Charles W. A. Prior

    2002-01-01

    A pavement maintenance and rehabilitation (M&R) project normally extends over 2-10 mile long roadway segment. At the M&R planning stage, these projects are called pavement management sections, which are often comprised of ...

  12. A summary of chapter 2 (pages 726) of the IMCP Manual (reference information on page 4) Technical Summary

    Engineering Websites

    briefly describes the effect of site factors on performance, basic concrete pavement types, and commonly or Iowa State University. CP Tech Center Mission The mission of the National Concrete Pavement Technology

  13. Guide to Dowel LoadTransfer Systems for Jointed Concrete

    Engineering Websites

    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

  14. Auburn University Environmental Institute Annual Technical Report

    Geosciences Websites

    Improvement Through Pervious Concrete Pavement Basic Information Title: Evaluation of Stormwater Quality Improvement Through Pervious Concrete Pavement Project Number: 2009AL76B Start Date: 3/1/2009 End Date: 4. Dougherty, Charlene M LeBleu Publication "Pervious Concrete: The Sustainable Pavement" a 4-hr Educational

  15. A summary of chapter 8 (pages 203240) of the IMCP Manual (reference information on page 4) Technical Summary

    Engineering Websites

    ) Technical Summary 8 Concrete Pavement Construction Figure 1. Typical sequence of adding material and Construction Practices for Concrete Pavements: A State-of-the- Practice Manual (IMCP manual). The summaries and methods which contribute to concrete pavement performance. The variables and methods described include

  16. Testimony of Dr. David Ellis Research Scientist

    Engineering Websites

    Desired system pavement condition Population growth Vehicle miles traveled Fuel efficiency Desired system pavement condition ­ maintain current system pavement condition #12;2 Population growth Population growth ­ same as above Vehicle Miles Traveled ­ same as above Fuel efficiency ­ same as above

  17. TEMPLATE DESIGN 2008 www.PosterPresentations.com

    Engineering Websites

    to the movement of the heavy clay soils on which it was constructed. The original pavement section consisted of 9 produce the highly weathered, highly plastic clay soils, that reach depths of 18 feet, along this portion clay soils began to cause undulations in the pavement. This led to cracks forming in the pavement

  18. August 2011 Variability and Visualization of

    Engineering Websites

    Authors August 2011 Variability and Visualization of Tire-Pavement Noise Measurements Concrete Pavement Surface Characteristics Program Robert Otto Rasmussen Vice President,TheTranstec Group, Inc Concrete PavementTechnology Center 2711 South Loop Drive, Suite 4700 Ames, IA 50010-8664 www

  19. Developing Large High-Resolution Display Visualizations of High-Fidelity

    Computer Technologies and Information Sciences Websites

    provides better insights into the characteristics of the pavement or road surface. However, the resolution are designed and evaluated with automotive and pavement engineers to demonstrate effective- ness of LHRDs for multiscale tasks that involve understanding pavement surface details within the overall context

  20. State DOT: Illinois (Prepared by Doug Dirks) State Report Questions on MEPDG Implementation

    Engineering Websites

    based upon pavement performance. During the past several years, IDOT worked with the University and pavement performance data. Revisions proposed by UIUC were then vetted through industry and an independent/BDE/pdf/Chapter%2054%20Pavement%20Design.pdf . IDOT believes that our mechanistic design procedure, specific

  1. Haeyong Chung Computer Science

    Computer Technologies and Information Sciences Websites

    .me.vt.edu/VTPL John Ferris www.me.vt.edu/VTPL Motivation · The pavement distortions should be inspected properly inspection and visually decide which pavement should be repaired Slide 10 #12;11Haeyong Chung www www.me.vt.edu/VTPL Goals · New method for pavement surface condition inspection that combines

  2. Guide to the Design of OVERLAYSUsing Existing Methodologies

    Engineering Websites

    Guide to the Design of CONCRETE OVERLAYSUsing Existing Methodologies October 2012 1993 AASHTO AASHTOWare Pavement ME Design Bonded Concrete Over Asphalt (BCOA) #12;On the Cover 1993 AASHTO Guide for Design of Pavement Structures (1993 AASHTO Guide), nomographs AASHTOWare Pavement ME Design American

  3. Technical Report Documentation Page 1. Report No.

    Environmental Management and Restoration Websites

    Zornberg, Jorge G.

    of or within a base course to increase the structural or load-carrying capacity of a pavement system. While of geosynthetics for unbound base courses can lead to improved performance and reduced costs in pavement systems of pavement systems, and (ii) developing material specifications that incorporate the geosynthetic and soil

  4. State DOT Representative Report National Concrete Consortium

    Engineering Websites

    , 2010 Theme: Pavement Smoothness 1. Briefly summarize your current pavement smoothness requirements. Smoothness requirements are based on Mean Roughness Index (MRI), which is the average of IRI for both wheel in the quality of ride relative to the pavement's initial condition (or down to a 75 in/mi threshold). Smoothness

  5. Robert Otto Rasmussen Vice President,TheTranstec Group, Inc.

    Engineering Websites

    Concrete pavements can be designed and constructed to be as quiet as any other conventional pavement type" of virtually every nominal concrete pavement texture in use today has been catalogued as part of the evaluation for each nominal texture type. The distributions that have been found are due to differences in design

  6. extrans Development of a Low-temperature Cracking Analysis and Design Tool: Visual LTC Student: Sofie Leon; Advisors: William Buttlar, Glaucio Paulino

    Mathematics Websites

    Paulino, Glaucio H.

    SIGNIFICANCE Low-temperature cracking of hot-mix asphalt (HMA) pavements continues to be a leading cause of pavement failure in regions of cold climate and/or where significant thermal cycling occurs. Asphalt of potholes and complete pavement failure. Recent advances in fracture testing and modeling of hot-mix asphalt

  7. Alabama DOT: Alabama Report Questions on NDT Testing

    Engineering Websites

    Alabama DOT: Alabama Report Questions on NDT Testing 1. What NDT testing methods for concrete materials, concrete pavements, and overlays are you trying? · We perform pavement smoothness testing, pavement friction testing and FWD testing · We are currently using GPR on the I-59 project to locate voids

  8. Dr.Thomas Van Dam Dr. Peter Taylor

    Engineering Websites

    of the Sustainability Track (Track 13) of the Long-Term Plan for Concrete Pavement Research and Technology (CP Road Map). The CP Road Map is a national research plan jointly developed and implemented by the concrete pavement Pavement Technology. CP Road Map publications and other operations support services are provided

  9. 3D Finite Element Analysis of HMA Overlay Mix Design to Control Reflective Cracking

    CERN Preprints

    Ghauch, Ziad G

    2011-01-01

    One of the most common rehabilitation techniques of deteriorated pavements is the placement of an HMA overlay on top of the existing Asphalt Concrete (AC) or Portland Cement Concrete (PCC) pavement. However, shortly after pavement resurfacing, HMA overlays exhibit a cracking pattern similar to that of the underlying pavement. This phenomenon is known as reflective cracking. This study examines the effectiveness of several HMA overlay mix design strategies for the purpose of controlling the development of reflective cracking. A parametric study was conducted using a 3D Finite Element (FE) model of a rigid pavement section including a Linear Viscoelastic (LVE) model for Hot Mix Asphalt (HMA) materials and non-uniform tire-pavement contact stresses. Results obtained show that for the intermediate and surface courses, using a Dense Graded (DG) or Polymer Modified (PM) asphalt mixture instead of a Standard Binder (SB) mixture results in reduced tensile stresses at the bottom of the HMA overlay but higher levels of...

  10. Asphalt and Asphaltic Concrete

    University of Kansas - KU ScholarWorks

    Young, A. R.

    1914-05-01

    of asphaltic concrete pavement .1 Litigation, Warren Bros. Co. vs. City of Topeka, Kaw Paving Co,, et al . , and decree 1 Asphalt and Asphaltic Cements . . . . . . . . 5 Mineral aggregate . . .9 Common defects in asphaltic concrete pavements... and their remedies . . . . 1 2 SPECIFICATIONS Instructions to bidders 13 Proposal . . . 1 6 General Stipulations . . Grading . .28 Curb and Gutter .32 Cement specifications 33 Rolling . .41 Concrete base .43 Asphaltic concrete pavement . . . . . . . . . 4 5...

  11. Released on receipt A, Science Service Feature,

    Environmental Sciences and Ecology Websites

    falls the pavements under t r e e s may stay dry f o r an appreciable period and then begin t o get wet evaporation from a wet pavement is an interesting commentary on tho temperature of the surface. Where exposed the preceding afternoon, and the afternoon shadows of hOU606 mY be clearly marked on the pavement by the wet

  12. Earth pressures and deformations in civil infrastructure in expansive soils 

    Texas A&M University - TxSpace

    Hong, Gyeong Taek

    2008-10-10

    Classifications ... 121 8.3 Vertical Movement at the Edge of Pavement and at the Outer Wheel Path, Fort Worth North Loop IH 820, Section A ................................................ 123 8.4 Input Parameters for Structural Properties of Pavement... and Traffic Data, Fort Worth North Loop IH 820 .................................................................. 124 8.5 Vertical Movement at the Edge of Pavement and at the Outer Wheel Path, Fort Worth North Loop IH 820, Section B...

  13. Adhesion in bitumen-aggregate systems and quantification of the effect of water on the adhesive bond 

    Texas A&M University - TxSpace

    Hefer, Arno Wilhelm

    2005-02-17

    This research is intended to contribute toward the understanding, development, and implementation of a more fundamental design process for bituminous pavement materials, utilizing thermodynamic properties of the materials ...

  14. A review of "Theater of State: Parliament and Political Culture in Early Stuart England" by Chris R. Kyle 

    Texas A&M University - TxSpace

    Schwarz, Marc

    2013-01-01

    Concrete pavements, underdesigned for today's levels of traffic, are deteriorating rapidly. Maintenance, rehabilitation, and reconstruction activities (MRR) have become more widespread and costly. State highway agencies ...

  15. Capacity of and coding for multiple-aperture, wireless, optical communications

    MIT - DSpace

    Haas, Shane M. (Shane Martin), 1975-

    2003-01-01

    Refractive index turbulence causes random power fluctuations in optical communication systems, making communication through the atmosphere difficult. This same phenomenon makes the stars twinkle at night, and pavement ...

  16. Transaction-Cost Economic Analysis of Institutional Change toward Design-Build Contracts for Public Transportation

    University of California eScholarship Repository

    Whittington, Jan; Dowall, David E.

    2006-01-01

    Construction Cost Mobilization Grading Structure Pavement Other Construction Traffic Controlconstruction costs show that the contractor for Thurston Way charged more for mobilization and quality assurance and control (

  17. Effective thermal conductivity of two-phase functionally graded particulate H. M. Yin, G. H. Paulino,a

    Mathematics Websites

    Paulino, Glaucio H.

    , asphalt pavements are typically constructed in layers, where material gradients such as density vertically, particularly with depth from the surface, causing the viscoelastic asphalt surfacing materials to exhibit

  18. A review of "The Third Voyage Journals: Writing and Performance in the London East India Company, 1607-10" by Richmond Barbour 

    Texas A&M University - TxSpace

    Hayworth, Gene

    2012-01-01

    Concrete pavements, underdesigned for today's levels of traffic, are deteriorating rapidly. Maintenance, rehabilitation, and reconstruction activities (MRR) have become more widespread and costly. State highway agencies ...

  19. de Lange lab protocol Peptide Antibody Production

    Biology and Medicine Websites

    de Lange, Titia

    Production bleed (20 ml serum). Day84 Boost SC: Tube #5 with FIA. Day94 Production bleed (20 ml serum). Day105 Boost SC: Tube #6 with FIA. Day115 Production bleed (20 ml serum). Day118 Terminal bleed (50 mlde Lange lab protocol Peptide Antibody Production A) Peptide BioSynthesis (http

  20. Basdogan, C., Ho, C., Srinivasan, M., 1999, "Simulation of Tissue Cutting and Bleeding for Laparoscopic Surgery Using Auxiliary Surfaces", Proceedings of the Medicine Meets Virtual Reality (MMVR'1999) Conference, pp. 38-

    Engineering Websites

    Basdogan, Cagatay

    for Laparoscopic Surgery Using Auxiliary Surfaces", Proceedings of the Medicine Meets Virtual Reality (MMVR'1999 for Laparoscopic Surgery Using Auxiliary Surfaces Cagatay Basdogan, Chih-Hao Ho, Mandayam A. Srinivasan Laboratory a number of instruments to perform incision and dissection of tissues during minimally invasive surgery

  1. Feb/Mar 2009 By: Giorgio Apollinari, Technical Division Head

    Physics Websites

    Fermilab Experiment E831

    exiting a vehicle, an employee stepped on an icy patch of pavement covered with a layer of snow they slipped and fell on icy pavement that was hidden by snow. The employee tried to break their fall. It takes a combination of preventative actions, such as snow removal and salting, and hazard recognition

  2. KENNETH H. STOKOE, II Dr. Stokoe has been working in the areas of in situ seismic measurements, laboratory

    Engineering Websites

    Briaud, Jean Louis

    testing (NDT) of pavements, runways and geotechnical systems, and 2. laboratory evaluation of soil. In the last 30 years, Dr. Stokoe has conducted major research efforts in the areas of: 1. nondestructive and taxiways due to micro-tunneling activities. As part of his activities in NDT of pavements, Dr. Stokoe

  3. 8:00 Registration, Breakfast and Welcome Moderator, Dale S. Harrington, representing the CP Tech Center 8:30 Bike Facilities Design for City Systems Jason Havel, City of Iowa City

    Engineering Websites

    . A summary of the new CP Tech Center's new Concrete Pavement Preservation Guide will be presented Solutions ­ Gordon Smith/John Cunningham, Iowa Concrete Paving Association The new updated (Oct 2014) Guide to Cement-Based Integrated Pavement Solutions covers 10 different cement ­ bound material options

  4. ORGANIZED IN 2000ORGANIZED IN 2000 Southeast Concrete Alliance Network (SCAN).

    Engineering Websites

    , and Tennessee. #12;MISSION To provide an ongoing regional forum for Portland cement concrete (PCC) pavement Portland cement concrete pavements and its components for highways, local roads, and streets #12;Members · DOT 8 ( 1 at large) · FHWA 1 · Academia 1 · Contractors 3 · Cement Industry 2 · Aggregate 1

  5. POSTER TEMPLATE BY: www.PosterPresentations.com

    Engineering Websites

    cements , with higher C2S, produced concrete with a dense microstructure and thus, low permeability. Cores. The later concrete pavements utilized blended cements, both Type IP and Type IS , with Class C fly ash. Hardened Air Content of Pavement Cores Many changes have occurred over the past century. Cement chemistry

  6. TEMPLATE DESIGN 2008 www.PosterPresentations.com

    Engineering Websites

    . Parry, P.E. Wisconsin DOT INTRODUCTION Wisconsin DOT has a long history of use of recycled materials in concrete pavement construction. ·1983 ­ First project where recycled concrete was used as aggregate in new. Wisconsin DOT specifications for recycling materials related to concrete pavements have always been

  7. POSTER TEMPLATE BY: www.PosterPresentations.com

    Engineering Websites

    POSTER TEMPLATE BY: www.PosterPresentations.com Recycling of Iowa Pavements Kevin Merryman Since as a recycled base material. Iowa has allowed recycled pavement to be used as drainable bases (Granular Subbase on-grade recycling ("Paradigm") Iowa specifications allow up to 100% recycled asphalt in structural

  8. 144 Rev. Int. de Desastres Naturales, Accidentes e Infraestructura Civil. Vol. 12(1) REFUERZO DE PAVIMENTOS SOBRE ARCILLAS EXPANSIVAS1

    Environmental Management and Restoration Websites

    Zornberg, Jorge G.

    OVER EXPANSIVE CLAYS Abstract: Basal reinforcement of pavement systems has been used for the purposes of longitudinal cracks induced in pavements constructed over highly plastic, expansive clay subgrades. Overall over expansive clay subgrades, although there is still the need for better characterization

  9. Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering

    Environmental Management and Restoration Websites

    Zornberg, Jorge G.

    over expansive clay subgrades Renfort des trottoirs au-dessus des argiles expansibles J.G. Zornberg & R, the mitigation of longitudinal cracks in- duced in pavements constructed over highly plastic, expansive clay benefits associated with the use of geogrids in pavements over expansive clay subgrades, although

  10. Infrastructure Investment Texas A&M Transportation Institute

    Engineering Websites

    condition Population growth Vehicle miles traveled Fuel efficiency Construction cost inflation System system pavement condition Population growth ­ State Data Center 1.0 migration scenario (assumes net pavement condition ­ same as above Population growth ­ same as above Vehicle Miles Traveled ­ same

  11. Using Porous Asphalt and CU-Structural Soil Urban Horticulture Institute

    Multidisciplinary Databases and Resources Websites

    Virginia Tech

    Asphalt Pavement: Why do we need it, what is it, and how is it used? Phase I and II National Pollution-point source pollution by mandating that the first half inch of runoff caused by storm events remain on site particles leaves gaps within the profile of the asphalt that allow water to flow through the pavement

  12. GGrraadduuaattee SSttuuddeenntt HHaannddbbooookk 22000099--22001100

    Mathematics Websites

    and Geoenvironmental Engineering 23 7.2 MS CE ­ Pavement Engineering 25 7.3 MS CE ­ Structural Engineering, Mechanics of the department 49 11. AREA-SPECIFIC PH.D. QUALIFYING EXAM STANDARDS AND GUIDELINES 50 11.1 Pavement Engineering

  13. USING FFTBASED DATA PROCESSING TECHNIQUES TO CHARACTERIZE ASPHALTIC CONCRETE MIXTURES

    Computer Technologies and Information Sciences Websites

    Kreinovich, Vladik

    to test the quality of a pavement is to send signals with different frequencies through the pavement to elastomers used in aerospace industry. In many applications of these materials, it is desirable to use non­destructive techniques to test the structural in­ tegrity and the properties of the corresponding structures

  14. State DOT: Louisiana State Report Questions on NDT Testing

    Engineering Websites

    or overlays non-destructively. We do use the surface resistivity meter for non-destructive testingState DOT: Louisiana State Report Questions on NDT Testing 1. What NDT testing methods for concrete materials, concrete pavements, and overlays are you trying? LADOTD does not test concrete pavements

  15. USING FFT-BASED DATA PROCESSING TECHNIQUES TO CHARACTERIZE ASPHALTIC CONCRETE MIXTURES

    Computer Technologies and Information Sciences Websites

    Kreinovich, Vladik

    to test the quality of a pavement is to send signals with different frequencies through the pavement to elastomers used in aerospace industry. In many applications of these materials, it is desirable to use non-destructive techniques to test the structural in- tegrity and the properties of the corresponding structures

  16. Robert Otto Rasmussen Vice President,TheTranstec Group, Inc.

    Engineering Websites

    Editor Sabrina Shields-Cook 515-294-7124 shieldsc@iastate.edu The Language of Noise and Quieter Pavements, the world's largest database of noise data for concrete pavements has also been collected and analyzed--that of acoustics and noise control. This document serves as both a brief tutorial and a handy reference for those

  17. October 2006 Concrete Solutions for Quieter

    Engineering Websites

    (DOTs) is highway noise, particularly in urban areas. Where autos are the predominant vehicles on high-speed facilities, most of the noise is generated at the tire-pavement interface. The impact of tire-pavement noise lessens as the percentage of trucks increase and other elements of highway noise--vehicle drive trains

  18. Int. J. Business Intelligence and Data Mining, Vol. 8, No. 3, 2013 199 Copyright 2013 Inderscience Enterprises Ltd.

    Computer Technologies and Information Sciences Websites

    Liang, Huizhi "Elly"

    of Transport and Main Roads, P.O. Box 673, Fortitude Valley, Queensland, QLD 4006, Australia E-mail: Majid.nayak@qut.edu.au *Corresponding author Abstract: Road networks are a national critical infrastructure. The road assets need of such assets, road pavement, plays a major role in the road network maintenance programmes. Pavement conditions

  19. Peer Review Plan Date: August 29, 2014

    Geosciences Websites

    is to describe a series of toxicity tests conducted with runoff from pavement with two different types found that runoff from coal-tar-sealcoated pavement collected during the 36 days following sealcoat% coal-tar-based sealcoat runoff or to 100% asphalt-based- sealcoat runoff occurred only with subsequent

  20. 3D Laser Imaging at Highway Speed Kelvin CP Wang

    Engineering Websites

    3D Laser Imaging at Highway Speed Kelvin CP Wang And the Team Formerly at the University Concrete Consortium Meeting Oklahoma City Sheraton Hotel #12;3D Laser Imaging for Pavements Mature Potential to Cover Most if Not All Data Collection on Pavement Surface How to Obtain True 1mm 3D Visual

  1. Technical Report Documentation Page 1. Report No.

    Energy Storage, Conversion and Utilization Websites

    AND INFORMATION SYSTEM FOR FORENSIC INVESTIGATION OF PAVEMENTS 6. Performing Organization Code 7. Author University Transportation Center Texas Transportation Institute Texas A&M University System College Station system for forensic investigation of pavements by enhancing the 1998 version of the ForenSys database

  2. POSTER TEMPLATE BY: www.PosterPresentations.com

    Engineering Websites

    , and minimizing the waste of products with road construction value. Concrete pavements are being designed of Transportation recognizes the importance of designing longer lasting pavements, conserving natural resources of a modified Class "F" fly ash for paving and bridge superstructure mix designs; specifications also allow

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

    Texas A&M University - TxSpace

    Satyanarayana Rao, Sindhu

    2002-01-01

    the shear and tensile stresses due to the movement of the underlying pavement. This movement is due to traffic loading and thermal contraction. This propagation of an existing cracking pattern from the old pavement into and through a new overlay is called...

  4. BAYESIAN NETWORKS Judea Pearl

    Computer Technologies and Information Sciences Websites

    California at Los Angeles, University of

    of the year (X 1 ), whether it's raining (X 2 ), whether the sprinkler is on (X 3 ), whether the pavement in any direction. For example, if the sprinkler is on, then the pavement is probably wet (prediction SEASON @ @R `j 'i X 3 SPRINKLER \\Gamma \\Gamma\\Psi `j 'i X 2 RAIN `j 'i X 4 WET ? `j 'i X 5 SLIPPERY

  5. BAYESIAN NETWORKS, CAUSAL INFERENCE AND KNOWLEDGE

    Computer Technologies and Information Sciences Websites

    California at Los Angeles, University of

    ), whether it's raining (X 2 ), whether the sprinkler is on (X 3 ), whether the pavement is wet (X 4 could be added.) \\Gamma \\Gamma\\Psi @ @R `j 'i X 1 SEASON @ @R `j 'i X 3 SPRINKLER \\Gamma \\Gamma\\Psi `j direction. For example, if the sprinkler is on, then the pavement is probably wet (prediction); if someone

  6. Mostafa Elseifi 1 of 15 Mostafa Elseifi, PhD, PE

    Engineering Websites

    Cai, Steve C. S.

    2004 Asphalt Technology 2003 Assistant Lecturer ­ Pavement Design 2001 Lab Instructor ­ Civil of Asphalt Paving Technologist (AAPT) o Best paper at the AAPT 2010 Annual Meeting Grant D. Mickle Award and to Detect Reflective Cracking in Asphalt Pavements ­ Agency: Gulf Coast Center for Evacuation

  7. Technical Report Documentation Page 1. Report No.

    Energy Storage, Conversion and Utilization Websites

    the horizontal strains at the pavement surface, the horizontal strains at the bottom of the asphalt layer to estimate pavement strains under a number of combinations of tire load, tire pressure, asphalt modulus, asphalt thickness and subgrade modulus. The Asphalt Institute method and the Shell method are used

  8. MODELLING ASPHALT WITH DISCRETE AND

    Computer Technologies and Information Sciences Websites

    Luding, Stefan

    MODELLING ASPHALT WITH DISCRETE AND CONTINUUM METHODS T.J. Ormel MECHANICAL ENGINEERING CHAIR S T R A C T Asphalt is used in many pavement constructions. During pavement con- struction the asphalt of numerical models, capable of describing the be- haviour of asphalt during compaction, could lead to a better

  9. SUBGRADE AGGREGATE, SPECIAL (Tollway) Effective: October 29, 2012

    Engineering Websites

    be crushed stone, crushed blast furnace slag, crushed gravel, crushed reclaimed asphalt pavement (RAP material from an approved source with the Contractor having the option to use screened Reclaimed Asphalt provision for Reclaimed Asphalt Pavement and have 100% passing the 1.5 inch sieve and be well graded down

  10. Technical and Computational Aspects of the Measurement of Aggregate Shape by Digital Image Analysis

    Engineering Websites

    Maerz, Norbert H.

    Norbert H. Maerz1 Abstract: Aggregates need to pass numerous tests to ensure the performance of asphalt; consequently the performance of the concrete or asphalt pavement relies heavily on the performance of the aggre, fine aggregate angularity and coarse ag- gregate angularity in concrete and asphalt pavements have re

  11. State DOT: PENNSYLVANIA State Report Questions on NDT Testing

    Engineering Websites

    State DOT: PENNSYLVANIA State Report Questions on NDT Testing 1. What NDT testing methods Deflectometer (FWD) testing on our pavements by request. We are currently looking into the use of Rolling Weight) to analyze our pavements. 2. In your experience, how does the reliability of NDT testing methods compare

  12. ALABAMA DOT State Report Answers

    Engineering Websites

    and payment adjustment clauses related to QC/QA requirements. PRICE ADJUSTMENT BASED ON RIDEABILITY Profile Index Inches/mile/section Contract Price Adjustment Percent of Pavement Unit Contract Price Under 10.0)/1.5] Over 50.0 Unacceptable #12;PRICE ADJUSTMENT BASED ON PAVEMENT THICKNESS PRICE ADJUSTMENT FOR DEFICIENCY

  13. Technical Report Documentation Page 1. Report No.

    Energy Storage, Conversion and Utilization Websites

    . Issues of concern in WMA are binder oxidation and absorption and their impact on pavement durability. Key that accounts for climate, traffic loading, pavement structural properties, life-cycle cost analysis) absorption is directly related to aggregate void fraction, 2) WMA absorption is somewhat less than HMA

  14. Graphical Models for Probabilistic and Causal Reasoning

    Computer Technologies and Information Sciences Websites

    California at Los Angeles, University of

    the causal re- lationships among the season of the year (X1), whether rain falls (X2) during the season, whether the sprinkler is on (X3) during that season, whether the pavement would get wet (X4), and whether that the influence of seasonal variations on the slipperiness of the pavement is mediated by other conditions (e

  15. Bayesian Networks Judea Pearl

    Computer Technologies and Information Sciences Websites

    California at Los Angeles, University of

    a simple yet typical Bayesian network. It describes the causal re­ lationships among the season of the year (X 1 ), whether rain falls (X 2 ) during the season, whether the sprinkler is on (X 3 ) during that season, whether the pavement would get wet (X 4 ), and whether the pavement would be slippery (X 5 ). All

  16. LouisianaTransportation Research Center

    Biology and Medicine Websites

    Stephens, Jacqueline

    to improve transportation systems in Louisiana.The center conducts short-term and long-term research's Pavement Management System (PMS). In order to evaluate and potentially improve PMS operations, a two on the right road at the right time. DOTD Evaluates and Integrates Pavement Management System Performance to

  17. Technical Report Documentation Page 1. Report No.

    Energy Storage, Conversion and Utilization Websites

    of Transportation Research and Technology Implementation Office 125 E. 11th Street Austin, Texas 78701-2483 13. Type for forming and prioritizing pavement maintenance and rehabilitation (M&R) projects was developed. The Texas Management, Pavement Performance Prediction, Maintenance and Rehabilitation Planning, Project Prioritization

  18. MMaannhhaattttaann CCoolllleeggee CCeenntteerr ffoorr GGeeootteecchhnnoollooggyy

    Engineering Websites

    Horvath, John S.

    Research Project Non-Earth Subgrade Materials and Their Thermal Effects on Pavements: An Overview Manhattan Research Project Non-Earth Subgrade Materials and Their Thermal Effects on Pavements: An Overview Report No/Center for Geotechnology Manhattan College School of Engineering Center for Geotechnology Bronx, New York, U.S.A. May 2001

  19. NCC and TTCCNCC and TTCC RelationshipRelationship

    Engineering Websites

    for collaboration and new initiatives, and be part of theinitiatives, and be part of the CP Road Map Mix Design and AnalysisCP Road Map Mix Design and Analysis Track team.Track team. #12;National Center forNational Center for Concrete Pavement TechnologyConcrete Pavement Technology (CP Tech Center)(CP Tech Center) Mission

  20. Improved Load Distribution for Load Rating of Low-Fill Box Structures

    University of Kansas - KU ScholarWorks

    Acharya, Raju

    2012-12-31

    . The distribution of the wheel load through a pavement may be different from that suggested by the current AASHTO guidelines. In addition to the pavement effect, the fill conditions (i.e., fill thickness and fill modulus) may affect the load distribution. Currently...

  1. Effect of PCC Joint Skew on Reflective Cracking in HMA Overlays

    CERN Preprints

    Ghauch, By Ziad G

    2011-01-01

    Reflective cracking is a relatively premature distress that occurs in HMA materials overlaying cracked and jointed underlying pavements. The high concentration of stresses and strains in the vicinity of the discontinuity of the old pavement causes the cracks to reflect into the newly placed HMA overlay. While it is a common practice to use skewed transverse joints in rigid pavements to improve the latter's performance, the impact of such a practice on the cracking of a potential HMA overlay has not been examined so far. In this context, this study investigates the effect of using skewed transverse joints in rigid pavements on reflective cracking development in the HMA overlay. Advanced three-dimensional Finite Element models including viscoelastic material properties for the HMA overlay, 3D beam modeling of dowel bars, non-uniform tire-pavement contact stresses, friction interfaces, and infinite boundary elements were constructed for both normal and skewed transverse joints using ABAQUS v-6.11. The potential ...

  2. Simulation of spike stall inception in a radial vanted diffuser

    MIT - DSpace

    Hill, Raymond Andrew, IV

    2007-01-01

    In turbocharger application bleed air at impeller exit is typically used to seal bearing compartments and to balance axial thrust in the rotor. It was previously shown that this bleed air can have a significant impact on ...

  3. Association of Diagnostic Blood Loss from Phlebotomy and Hospital-Acquired Anemia During Admission with Acute Myocardial Infarction

    University of Kansas - KU ScholarWorks

    Salisbury, Adam Christopher

    2010-12-31

    in high risk patients. Periprocedural bleeding is an important target for such HAA prevention initiatives. For instance, interventions that decrease bleeding risk at the time of percutaneous coronary intervention (such as closure devices or the use... of alternative anticoagulants such as bivalirudin) are likely to reduce the incidence of HAA by reducing bleeding complications.12 However, HAA commonly occurs in the absence of bleeding in both AMI patients and in patients admitted for percutaneous coronary...

  4. Brookhaven National Laboratory/National Synchrotron Light Source Subject: VACUUM PROCEDURES FOR BEAMLINE X21A

    Physics Websites

    Johnson, Peter D.

    ) A. Bleed up 1. Notify the Coordinator (Beeper 5824). 2. Close and seal Valve 1A and Front-End Vat. Bleed up 1. Notify the Coordinator(Beeper 5824). 2. Close and seal Valve 1A. 3. Coordinator places Yellow Tag on Valve 1A. 4. Close and seal Valve 2A. 5. Slowly bleed up while Coordinator monitors

  5. Brookhaven National Laboratory/ LIGHT SOURCES DIRECTORATE Subject: VACUUM PROCEDURES FOR BEAMLINE X-15B

    Physics Websites

    Johnson, Peter D.

    on the NSLS website. The following procedures must be followed when bleeding up different beamline sections TO BE PERFORMED BY NSLS VACUUM GROUP ONLY) A. Bleed-Up 1. Notify the Coordinator (Beeper 5824). 2. Refer to Front BOX A. Bleed-Up 1. Notify the Coordinator (Beeper 5824). 2. Close and seal Valve 1B and the Front

  6. Number: Revision: B LS-OPS-0062

    Physics Websites

    Johnson, Peter D.

    signatures for validity. The following procedures must be followed when bleeding up different beam line.69-001): I. FRONT END (PROCEDURE TO BE PERFORMED BY NSLS VACUUM GROUP ONLY) A. Bleed-Up 1. Notify. Section between Valve 1A and Valve 2A (Collimating Mirror Tank) A. Bleed-up 1. Notify the Coordinator

  7. Brookhaven National Laboratory/ LIGHT SOURCES DIRECTORATE Subject: VACUUM PROCEDURES FOR BEAMLINE U7A

    Physics Websites

    Johnson, Peter D.

    copy. The following procedures must be followed when bleeding up different beam line sections and when (PROCEDURE TO BE PERFORMED BY NSLS VACUUM GROUP ONLY) A. Bleed-Up 1. Notify the Coordinator (Beeper 5824). 2 AND VALVE 2A, Entrance Slit Section A. Bleed-Up 1. Notify the Coordinator (Beeper 5824). 2. Close and seal

  8. Brookhaven National Laboratory/ LIGHT SOURCES DIRECTORATE Subject: VACUUM PROCEDURES FOR BEAMLINE U-4A

    Physics Websites

    Johnson, Peter D.

    . The following procedures must be followed when bleeding up different beamline sections and when returning VACUUM GROUP ONLY) A. Bleed-Up 1. Notify the Coordinator (Beeper 5824). 2. Refer to Front-End Vacuum. Bleed-Up 1. Notify the Coordinator ( Beeper 5824 ). 2. Ensure that the front mirror shutter is down. 3

  9. Brookhaven National Laboratory/ LIGHT SOURCES DIRECTORATE Subject: VACUUM PROCEDURES FOR BEAMLINE U-12IR

    Physics Websites

    Johnson, Peter D.

    gauge G1 and ion pump P1 (120 l/s). 6. Connect turbo station with Nitrogen gas bleed up accessory to one Vacuum Group monitors ring pressure, slowly bleed in Nitrogen gas. Close bleed valve if ring pressure the downstream pressure on Gauge G2 to ensure that Valve V2 is not leaking. Keep dry Nitrogen flowing

  10. GIS-Based Probabilistic Approach for Assessing and Enhancing Infrastructure Data Quality 

    Texas A&M University - TxSpace

    Saliminejad, Siamak 1983-

    2012-11-26

    paradigm (with focus on pavement management) in two primary ways: (a) it provides in-depth understanding of the impact of errors in condition data on the outputs of infrastructure management systems, and (b) it provides efficient computational methods...

  11. Paleontology and Geology of Indiana Department of Geological Sciences | P. David Polly 1

    Biology and Medicine Websites

    Polly, David

    Ordovician, Harding Sandstone #12;Department of Geological Sciences | P. David Polly 7 Chondricthyes (Sharks, rays, and chimaeras) Misc shark teeth (x4) Valmeyeran Elasmobranchii (sharks), Xenacanthida Xenacanth shark, Cannel Coal, Knox County, IL Holocephali, Cochliodontidae (chimaeras) Deltodus Pavement shark

  12. Framework for Consideration of Aging andFramework for Consideration of Aging and Thermal Gradients in Asphalt ConcreteThermal Gradients in Asphalt Concrete

    Mathematics Websites

    Paulino, Glaucio H.

    and long term aging of asphalt cements," Journal of Asphalt Paving Technologists, Vol. 64 393-430. Guide for Mechanistic-Empirical Design of New and Rehabilitated Pavement Structures, NCHRP Project 1-37A Final Report

  13. Reflective Cracking Study: First-level Report on HVS Testing on Section 586RF - 45 mm MB15-GOverlay

    University of California eScholarship Repository

    Jones, David; Wu, R; Harvey, John T

    2008-01-01

    the Caltrans/Industry Rubber Asphalt Concrete Task Group (tire rubber (MAC15-G); Half-thickness rubberized asphaltRubber Pavements Association, Valero Energy Corporation, and Paramount Petroleum which contributed funds and asphalt

  14. Reflective Cracking Study: First-Level Report on HVS Testing on Section 590RF - 90 mm MB4-G Overlay

    University of California eScholarship Repository

    Jones, David; Tsai, Bor-Wen; Harvey, John T

    2008-01-01

    the Caltrans/Industry Rubber Asphalt Concrete Task Group (tire rubber (MAC15-G); Half-thickness rubberized asphaltRubber Pavements Association, Valero Energy Corporation, and Paramount Petroleum which contributed funds and asphalt

  15. Reflective Cracking Study: First-level Report on HVS Testing on Section 588RF - 90 mm AR4000-DOverlay

    University of California eScholarship Repository

    Jones, David; Wu, R; Harvey, John T

    2008-01-01

    the Caltrans/Industry Rubber Asphalt Concrete Task Group (tire rubber (MAC15-G), and Half-thickness rubberized asphaltRubber Pavements Association, Valero Energy Corporation, and Paramount Petroleum which contributed funds and asphalt

  16. Reflective Cracking Study: First-Level Report on HVS Testing on Section 589RF - 45 mm MB4-G Overlay

    University of California eScholarship Repository

    Jones, David; Harvey, John T; Wu, R; Lea, J.

    2008-01-01

    the Caltrans/Industry Rubber Asphalt Concrete Task Group (tire rubber (MAC15-G); Half-thickness rubberized asphaltRubber Pavements Association, Valero Energy Corporation, and Paramount Petroleum which contributed funds and asphalt

  17. Reflective Cracking Study: Backcalculation of HVS Test Section Deflection Measurements

    University of California eScholarship Repository

    Lu, Qing; Jones, David; Harvey, John T

    2008-01-01

    the Caltrans/Industry Rubber Asphalt Concrete Task Group (tire rubber (MAC15-G); Half-thickness rubberized asphaltRubber Pavements Association, Valero Energy Corporation, and Paramount Petroleum which contributed funds and asphalt

  18. Reflective Cracking Study: HVS Test Section Forensic Investigation

    University of California eScholarship Repository

    Jones, David; Steven, B.; Harvey, John T

    2008-01-01

    the Caltrans/Industry Rubber Asphalt Concrete Task Group (Rubber Pavements Association, Valero Energy Corporation, and Paramount Petroleum which contributed funds and asphaltrubber (referred to as “MAC15-G” in this report) Half-thickness rubberized asphalt

  19. Reflective Cracking Study: First-level Report on HVS Testing on Section 591RF - 45 mm MAC15TR-GOverlay

    University of California eScholarship Repository

    Jones, David; Wu, R.; Harvey, John T

    2008-01-01

    the Caltrans/Industry Rubber Asphalt Concrete Task Group (tire rubber (MB15-G); Half-thickness rubberized asphaltRubber Pavements Association, Valero Energy Corporation, and Paramount Petroleum which contributed funds and asphalt

  20. Department of Civil & Environmental Engineering Geotechnical Group Seminar Series

    Engineering Websites

    Kamat, Vineet R.

    of Michigan, Ann Arbor Pavement Optimization with Tensar TriAx Geogrids By Jim Sanneman, Tensar Wednesday is composed of a layer of Tensar TriAx geogrid and aggregate. The placement of TriAx geogrid in the aggregate

  1. 5 ways McGill researchers are BUILDING YOUR FUTURE

    Environmental Sciences and Ecology Websites

    Abouheif, Ehab

    sneakers (or boots at this time of year), grab my backpack, and hit the pavement for 15 to 20 minutes understanding about why this theme is so appropriate. It recently hit me that my routine could undergo changes

  2. Effect of Ionic Stabilization on Vertical Movement in Expansive Subgrade Soils in Texas 

    Texas A&M University - TxSpace

    Hariharan, Narain

    2013-07-31

    An important consideration for the successful design of flexible pavement systems in Texas is the prediction and control of the vertical change in height of the subgrade soils due to swelling upon wetting and shrinkage upon drying. The purpose...

  3. Mechanics of fragmentation of crocodile skin and other thin films

    MIT - DSpace

    Qin, Zhao

    Fragmentation of thin layers of materials is mediated by a network of cracks on its surface. It is commonly seen in dehydrated paintings or asphalt pavements and even in graphene or other two-dimensional materials, but is ...

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

    Texas A&M University - TxSpace

    Cavalcanti De Sousa, Pedro

    2010-10-12

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

  5. MSC Awards Display 

    Texas A&M University - TxSpace

    Unknown

    2011-08-17

    Many municipalities have operational Pavement Management Systems (PMS) in one form or another. These municipalities desire the ability to access, manipulate, analyze, display, and report graphical information about their roadway networks. While most...

  6. Moon C. Won 2300 Glenna Goodacre Blvd

    Engineering Websites

    Chen, Xinzhong

    ,000) Investigated premature deterioration of concrete pavements and structures due to alkali silica reaction-3995 (1997 ­ 2002: $127,000) Developed a water/cement ratio test method. Principal Investigator: Tx

  7. Fuente: Todd Hanson,Iowa DOT Fuente: Jim Cable, Iowa State University Fuente: Randell Riley, Illinois chapter,ACPA Fuente: Kevin Merryman, Iowa DOT Fuente:TheTranstec Group Fuente: Todd Hanson, Iowa DOT

    Engineering Websites

    ACPA American Concrete Pavement Association ASR alkali-silica reactivity/reaction/reactive ASTM on Uniform Traffic Control Devices NCHRP National Cooperative Highway Research Program PCA Portland Cement Association PCC portland cement concrete SCM supplementary cementitious material TRB Transportation Research

  8. State Report Answers -ALABAMA September 12-15, 2011 TTCC/NCC Meeting

    Engineering Websites

    for cracking in a pavement is ¼ inch. Michigan does not begin observing cracks until ¼ inch. At what level features of the design program and modification that will be allowed for ALDOT to customize the software

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

    Texas A&M University - TxSpace

    Barcena Mendoza, Roberto

    2001-01-01

    Surface treatments have been used by many government agencies as part of their maintenance and rehabilitation programs to improve surface quality and extend the service life of pavements. Traditional specifications for asphalt binders failed...

  10. State DOT: Michigan State Report Questions on NDT Testing

    Engineering Websites

    to calibrate the test site for all of the department and contractor's lightweight and high speed pavement conducting research using high speed imaging to determine aggregate gradation and particle shape in lieu

  11. Neoproterozoic glaciation in the mid-oceanic realm: An example from hemi-pelagic mudstones on Llanddwyn Island, Anglesey, UK

    Computer Technologies and Information Sciences Websites

    Ikegami, Takashi

    debris in moraines (e.g. Starck and Papa, 2006; England, 1999). Evidence of former glaciations in the Neoproterozoic, is provided by tillites, scratched pavements, dropstones and moraines (e.g. Hoffman and Schrag

  12. Traffic models from a velocity point of view and implementation of traffic conditions in excess fuel consumption estimates

    MIT - DSpace

    Bain, Nicolas Charles Patrick

    2015-01-01

    The estimation of excess fuel consumption due to pavement - vehicle interactions (PVI) is receiving an increasing amount of attention, for it has major economic and ecological implications for the design and maintenance ...

  13. New Braunfels HTC 

    Texas A&M University - TxSpace

    Unknown

    2011-08-17

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

  14. Measurement and quantification of aggregate thermal coefficient of expansion 

    Texas A&M University - TxSpace

    Chande, Gautam U

    1997-01-01

    The coefficient of thermal expansion of concrete affects thermal related distresses in pavements. Factors affecting expansion of concrete and aggregates along with existing models are reviewed. A test method to measure the coefficient of thermal...

  15. MICHIGAN DOT State Report Answers

    Engineering Websites

    quality control activities necessary to deliver a concrete pavement in accordance with plans and specifications, including, · Developing and maintaining QC Plan. · Developing concrete mixture proportions for each grade of concrete. · Conducting quality control, sampling, testing, and inspection during all

  16. Evaluation of Condor SS as a soil stabilizer 

    Texas A&M University - TxSpace

    Ahmed, Shamim

    1995-01-01

    In most cases, pavement failures are directly related to subgrade failures. Subgrade failures are normally attributed to soils which are expansive in nature. The expansive properties of a soil can be chemically altered by ...

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

    Engineering Websites

    Chandy, John A.

    by Connecticut Department of Transportation Forensic Testing and Evaluation of the Long Term Pavement Performance of Science Establishing Default Dynamic Modulus Values for New England, sponsored by New England

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

    Texas A&M University - TxSpace

    Castelo Branco, Veronica Teixeira Franco

    2009-05-15

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

  19. Winter2013 (Revised 1.9.13) 1 of 5 Department of Civil & Environmental Engineering

    Energy Storage, Conversion and Utilization Websites

    Bertini, Robert L.

    factors, statistical analysis, traffic control and public policy. Design concepts of intersections knowledge of highway design, operation, maintenance, human factors, statistical analysis, traffic control, traffic signals, traffic signs and pavement markings. They must be able to analyze large data sets

  20. A Study of Crack Detection Model 

    Texas A&M University - TxSpace

    Shi, Yangming

    2014-12-11

    collection, image segmentation, pixel selection and statistical analysis. Image collection is a process of using a photogrammetry method to collect the data for the crack detection model. Then, the pavement image is transformed into a binary image during...

  1. A New Protocol for Evaluating Concrete Curing Effectiveness 

    Texas A&M University - TxSpace

    Sun, Peizhi

    2013-07-22

    Excessive early-age concrete surface moisture evaporation causes many problems of concrete pavements, such as plastic shrinkage cracking and delamination; the use of liquid membrane-forming curing compounds is one of the most prevalent methods...

  2. Instrumentation for Process Individual 

    Texas A&M University - TxSpace

    Unknown

    2011-08-17

    The permeability of hot mix asphalt (HMA) is of special interest to engineers and researchers due to the effects that water has on asphalt pavement performance. Significant research has been done to study HMA permeability. ...

  3. Transportation Research Record: Journal of the Transportation Research Board, No. 2272, Transportation Research Board of the National Academies, Washington,

    Computer Technologies and Information Sciences Websites

    Caverlee, James

    of a pavement marking's service life. Finally, statistical modeling was used to determine the relation- ship and thermoplastic should be used only for short-term applications with low to medium traffic. The measurement

  4. 2015 GRADUATE STUDIES GEOSYSTEMS ENGINEERING

    Engineering Websites

    companies in the mining, petroleum and energy industries. Graduate students may select from almost 30 in Geotechnical Engineering · Energy Geotechnics · Environmental Geotechnics · Experimental Methods in Research Design and Management · Mathematical Applications for Civil and Environmental Engineering · Pavement

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

    Texas A&M University - TxSpace

    Woo, Won Jun

    2009-06-02

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

  6. Nondestructive testing using stress waves: wave propagation in layered media 

    Texas A&M University - TxSpace

    Ortega, Jose Alberto

    2013-02-22

    The use of stress waves in several civil engineering applications such as nondestructive testing of soil deposits or pavement systems has become extremely popular over the last few years. In all cases, a dynamic impulse is applied to the surface...

  7. Chapter 7--Establishment Establishment in Barren Sites

    Biology and Medicine Websites

    del Moral, Roger

    a densely packed layer of pumice similar to de- sert pavement (Abraham Plain, August 17, 2011). Fig. 7 distressed plants (del Moral 1981; Fig. 7.1). Pumice rocks absorbed water that expanded as it froze

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

    Texas A&M University - TxSpace

    Song, Injun

    2004-11-15

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

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

    Texas A&M University - TxSpace

    Jung, Sung Hoon

    2009-06-02

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

  10. DigiGraff: Considering Graffiti as a Location Based Social Network

    Computer Technologies and Information Sciences Websites

    Brewster, Stephen

    the locations of utilities as a way to communicate with later engineers (Figure 1 top). Decorators will chalk signs on the pavement to warn pedestrians that a nearby fence or door has recently been painted. Chalk

  11. SEPTEMBER 2011 PRIMARY SOURCE

    Engineering Websites

    Consortium (NCC) is a national forum for concrete pavement research and technology transfer initiatives. NCC is supported through the TechnologyTransfer Concrete Consortium (FHWA Pooled FundTPF-5(159)). The goals

  12. North Dakota DOT Responses to State Report Questions 1. Has your state built concrete overlays?

    Engineering Websites

    on another. 2. If yes: a. What bid items were used? Concrete Pavement with units of cubic yard. Concrete experience with overruns in concrete mix quantities? Plan quantity was determined by adding calculated cubic

  13. A Sclencg Service Feature-7 WHYTEEEWEATHER 7

    Environmental Sciences and Ecology Websites

    vapor a l o f t but destroy the optical uniformitr of the air, causing a blurring effect as of However, Moreover, in autumn the heated air over a hot pavement. ------..--- (Tomorrow: Water Vapor and A1titude 1 A

  14. Rheological Investigation of the Influence of Acrylate Polymers on the Modification of Asphalt

    Materials Science Websites

    Hussein, Ibnelwaleed A.

    of Chemical Engineering, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia 2, increasing traffic volume, high traffic load, and weather accelerate the pavement deterioration.2 So, asphalt

  15. Technical Report Documentation Page 1. Report No.

    Energy Storage, Conversion and Utilization Websites

    . Recipient's Catalog No. 4. Title and Subtitle PERFORMANCE AND COST EFFECTIVENESS OF PERMEABLE FRICTION, the water flow values had a tendency to increase early in the life of the pavement and remain relatively

  16. Hard prey, soft jaws and the ontogeny of feeding mechanics in the spotted ratfish

    Environmental Sciences and Ecology Websites

    Summers, Adam P.

    of a molariform or pavement- like dentition is strongly correlated with hard prey consumption (durophagy). Although the posterior occlusal surface of their dentition is suited for crushing, holocephalans may

  17. Washington State DOT Report: State Report Questions on MEPDG Implementation

    Engineering Websites

    studded tires from November to April which causes surface wear. A WSDOT test showed that PCC pavements with an IRI of 145-155 inches/mile in the wheelpath (where studded tire wear would have the greatest effect

  18. Schwarz, T. and Wells, S. (1999) "Storm Water Particle Removal using Cross-Flow Filtration and Sedimentation," in Advances in Filtration and Separation Technology, Volume 12, ed. by W. Leung, American Filtrations and Separations Society, pp.219-226.

    Environmental Management and Restoration Websites

    Wells, Scott A.

    1999-01-01

    , and leakage of oil, pavement wear, application of de-icing compounds, pesticides and herbicides, accidental spills, tree leaves, and littering. The solids come from the fine particulate dust of the surrounding

  19. Tool developing of MRR strategy selection 

    Texas A&M University - TxSpace

    Liu, Juanyu

    2001-01-01

    , constructibility, construction and traffic control cost, corridor impact, and road user delay. Three main tasks are involved in the decision process and accomplished by related programming tools. Task 1 is to assess pavement condition data and develop key...

  20. Highway Research 

    Texas A&M University - TxSpace

    Unknown

    2011-08-17

    The highway system is reaching the end of its design life and requires rehabilitation due to excessive wear and age. Concrete pavement rehabilitation and reconstruction are two of the methods used to extend the service life of roadways. This study...

  1. Ecology 2006 20, 10371044

    Environmental Sciences and Ecology Websites

    Arizona State University

    Ecological Society Blackwell Publishing Ltd Ant stoichiometry: elemental homeostasis in stage elemental composition within limited bounds. Such stoichiometric homeostasis has often been considered : phosphorus (C : N : P) homeostasis in a eusocial insect, the pavement ant Tetramorium caespitum. 3. Colony

  2. A generalized land use study of the San Jacinto River watershed of Texas 

    Texas A&M University - TxSpace

    Buckley, Frank A.

    1951-01-01

    Negative effects of urban stormwater runoff on water environment have been a growing concern in the United States. Drastic change in land uses to urban communities with pavements from natural land uses can destroy the already established eco...

  3. ASPHALT PAVEMENTAGING AND TEMPERATURE DEPENDENT PROPERTIES USING FUNCTIONALLY GRADED VISCOELASTIC MODEL

    Mathematics Websites

    Paulino, Glaucio H.

    ASPHALT PAVEMENTAGING AND TEMPERATURE DEPENDENT PROPERTIES USING FUNCTIONALLY GRADED VISCOELASTICBenedetto, University of Lyon Mr. Philip B. Blankenship, Asphalt Institute #12;© 2009 Eshan V. Dave. All rights reserved. #12;ii ABSTRACT ASPHALT PAVEMENT AGING AND TEMPERATURE DEPENDENT PROPERTIES THROUGH A FUNCTIONALLY

  4. Resilient modulus and permanent deformation testing of unbound granular materials 

    Texas A&M University - TxSpace

    Kancherla, Anuroopa

    2005-11-01

    Numerous research efforts have been devoted to characterizing the behavior of granular materials, which is one of the main concerns of pavement engineers. For better understanding of this behavior, laboratory tests where ...

  5. Develop statewide recommendations for application of PCC joint reflective cracking rehabilitation strategies 

    Texas A&M University - TxSpace

    Jain, Rahul Padamkumar

    2004-11-15

    Concrete pavements are facing rapid deterioration due to the increasing high traffic volumes. Maintenance, rehabilitation and reconstruction (MRR) have become major activities for all the state highway agencies. Due to ...

  6. 8th RILEM International Symposium on Testing and Characterization of Sustainable and Innovative Bituminous Materials

    CERN Preprints

    Partl, Manfred

    2016-01-01

    This work presents the results of RILEM TC 237-SIB (Testing and characterization of sustainable innovative bituminous materials and systems). The papers have been selected for publication after a rigorous peer review process and will be an invaluable source to outline and clarify the main directions of present and future research and standardization for bituminous materials and pavements. The following topics are covered: - Characterization of binder-aggregate interaction - Innovative testing of bituminous binders, additives and modifiers - Durability and aging of asphalt pavements - Mixture design and compaction analysis - Environmentally sustainable materials and technologies - Advances in laboratory characterization of bituminous materials - Modeling of road materials and pavement performance prediction - Field measurement and in-situ characterization - Innovative materials for reinforcement and interlayer systems - Cracking and damage characterization of asphalt pavements - Rec...

  7. Massive landslide (Qushan Town)

    Geosciences Websites

    Klinger, Yann

    , pavements, channels, gullies and terraces, which are generally perpendicular to the surface rupture zone. Vertical offsets of the ground surfaces observed in fluvial fill terraces, river beds, small gullies

  8. Determining the extent and characteristics of overrepresentation of large truck crashes in daytime and nighttime work zones 

    Texas A&M University - TxSpace

    Mokkapati, Naveen

    2009-05-15

    The growth of vehicle travel in the United States has accelerated wear on the interstate highway system leading to frequent pavement repair and rehabilitation projects. The presence of work zones not only causes traffic congestion and backup...

  9. Modeling Low Impact Development at the Small-Watershed Scale: Implications for the Decision Making Process 

    Texas A&M University - TxSpace

    Seo, Mijin

    2014-12-03

    Negative effects of urban stormwater runoff on water environment have been a growing concern in the United States. Drastic change in land uses to urban communities with pavements from natural land uses can destroy the already established eco...

  10. Reflective Cracking Study: Initial Construction, Phase 1 HVS Testing, and Overlay Construction

    University of California eScholarship Repository

    Bejarano, Manuel O.; Jones, David; Morton, Bruce S.; Scheffy, Clark

    2008-01-01

    wet and dry seasons and hence water could have infiltrated the pavementwet months, but the sections tested during the dry period had longer pavementwet months, but the sections tested during the dry period had longer pavement

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

    University of Kansas - KU ScholarWorks

    Shiwakoti, Harihar

    2007-12-14

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

  12. BAYESIAN NETWORKS Judea Pearl

    Computer Technologies and Information Sciences Websites

    California at Los Angeles, University of

    ), whether it's raining (X2), whether the sprinkler is on (X3), whether the pavement is wet (X4), and whether #12;;; @@R X1 SEASON @@R X3SPRINKLER ;; X2 RAIN X4 WET ? X5 SLIPPERY Figure 1: A Bayesian network that the pavement is wet, that makes it more likely that the sprinkler is on or that it is raining (abduction

  13. Transportation Curriculum Coordination Council

    Engineering Websites

    Pavements 92 0 92 FHWA-NHI-131122 Portland Cement Concrete Paving Inspection 125 79 204 FHWA-NHI-131126 Concepts 62 7 69 FHWA-NHI-131126B Concrete Pavement Evaluation 54 5 59 FHWA-NHI-131126C Slab Stabilization and Crack Sealing 52 5 57 FHWA-NHI-131126J Strategy Selection 33 4 37 FHWA-NHI-131127 Concrete Series 134 21

  14. Effect of PCC Joint Skew on Reflective Cracking in HMA Overlays

    Physics (arXiv)

    Ziad G. Ghauch

    2012-03-30

    Reflective cracking is a relatively premature distress that occurs in HMA materials overlaying cracked and jointed underlying pavements. The high concentration of stresses and strains in the vicinity of the discontinuity of the old pavement causes the cracks to reflect into the newly placed HMA overlay. While it is a common practice to use skewed transverse joints in rigid pavements to improve the latter's performance, the impact of such a practice on the cracking of a potential HMA overlay has not been examined so far. In this context, this study investigates the effect of using skewed transverse joints in rigid pavements on reflective cracking development in the HMA overlay. Advanced three-dimensional Finite Element models including viscoelastic material properties for the HMA overlay, 3D beam modeling of dowel bars, non-uniform tire-pavement contact stresses, friction interfaces, and infinite boundary elements were constructed for both normal and skewed transverse joints using ABAQUS v-6.11. The potential for reflective cracking was monitored through the fracture mechanics J-integral parameter. Results obtained show, among other things, that the practice of skewing transverse joints increases the potential for reflective cracking development in the asphalt concrete overlay.

  15. Brookhaven National Laboratory/National Synchrotron Light Source Subject: VACUUM PROCEDURES FOR BEAMLINE X-13A

    Physics Websites

    Johnson, Peter D.

    and Front End Valve. 5. Slowly bleed-up with boil-off N2 while Coordinator monitors front end pressure. and V1. 4. Slowly bleed-up with boil-off N2 while Coordinator monitors the pressure in M0A mirror was closed and sealed at Bleed-Up section III point A.2., Open ValveV2B into M0 mirror chamber provided

  16. rATEs&sPEcIfIcATIons AD sIzEs IMPErIAL METrIc

    Engineering Websites

    Napp, Nils

    116 mm 1/4 Page 3 3 /8" 4 3 /4" 121 mm 86 mm bLEED AD sIzEs IMPErIAL METrIc PAGe unIT WIDTh DePTh De calendar days prior to publication date. PrInT sPEcIfIcATIons fuLL-PAgE bLEED rEquIrEMEnTs · Bleed size: 8 1 /2" x 10 3 /4" · Trim size: 8 1 /4" x 10 1 /2" · Live area: 7 3 /4" x 10" TWo-PAgE bLEED r

  17. Division of Sciences www.otago.ac.nz/sciences

    Environmental Sciences and Ecology Websites

    , mechanical analysis suggests their continued activity depends on the presence of highly pressurized fluids as `valves', bleeding off overpressured fluids immediately after seismic activity, when there is enhanced

  18. University of Connecticut Health Center

    Biology and Medicine Websites

    Oliver, Douglas L.

    complications you have had after any of your surgeries): Infection: Pneumonia: Bleeding: Lung Problems: Blood, Nose, Throat Vertigo, Sinusitis, Hoarseness, Loss of Hearing Heart Chest pain, Murmurs, Palpitations

  19. OSU Student Health History Form Updated 3/6/13 Page 1 Student Health Services, SHS @ Dixon, 211 Dixon Recreation Center

    Environmental Sciences and Ecology Websites

    Tullos, Desiree

    Hepatitis 6 Multiple Sclerosis 6 Stroke 6 Bleed Easily 6 High Blood Pressure 6 Mumps 6 Tuberculosis 6 Cancer Tuberculosis 6 Other ___________________________________________ Known or suspected allergies

  20. Child Information: Our Little Village

    Biology and Medicine Websites

    : Allergy to medicine, food, animal ADHD (Attention Deficit Hyperactive Disorder) Asthma Seizures Heart Trouble Diabetes Bleeding disorders Other Please explain any checked item from above: Please list any

  1. "paper" --2008/3/20 --15:47 --page 19 --#1 Vol. 13, No. 1: 1929

    Computer Technologies and Information Sciences Websites

    Callahan, Steven

    acne. Second, gaps between shadow map pixels are either ignored, which results in light bleeding of sur- face acne and light bleeding. Our algorithm uses a multi-layer shadow map to reduce light the problem of surface acne. 2. Soft Shadow Mapping with Backprojection Soft shadows rendered using percentage

  2. Brookhaven National Laboratory/ LIGHT SOURCES DIRECTORATE Subject: VACUUM PROCEDURES FOR BEAMLINE X-16C

    Physics Websites

    Johnson, Peter D.

    Brookhaven National Laboratory/ LIGHT SOURCES DIRECTORATE Subject: VACUUM PROCEDURES FOR BEAMLINE X VACUUM GROUP ONLY) A. Bleed-Up 1. Notify the Coordinator (Beeper 5824). 2. Refer to Front End Vacuum End Vacuum Procedures (SLS-07.19-13-1) II. SECTION BETWEEN VALVE 1C AND Be WINDOW 1C A. Bleed-Up 1

  3. Brookhaven National Laboratory/ LIGHT SOURCES DIRECTORATE Subject: VACUUM PROCEDURES FOR BEAMLINE X-7A

    Physics Websites

    Johnson, Peter D.

    Brookhaven National Laboratory/ LIGHT SOURCES DIRECTORATE Subject: VACUUM PROCEDURES FOR BEAMLINE X VACUUM GROUP ONLY) A. Bleed-Up 1. Notify the Coordinator (Beeper 5824). 2. Refer to Front-End Vacuum to Front-End Vacuum Procedures (SLS-07.19-13-1). II. SECTION BETWEEN VALVE 1A AND Be WINDOW 1A A. Bleed

  4. Brookhaven National Laboratory/ LIGHT SOURCES DIRECTORATE Subject: VACUUM PROCEDURES FOR BEAMLINE X-15A

    Physics Websites

    Johnson, Peter D.

    Brookhaven National Laboratory/ LIGHT SOURCES DIRECTORATE Subject: VACUUM PROCEDURES FOR BEAMLINE X VACUUM GROUP ONLY) A. Bleed-Up 1. Notify the Coordinator (Beeper 5824). 2. Refer to Front-End Vacuum to Front-End Vacuum Procedures (SLS-07.19-13-1). II. SECTION BETWEEN VALVE 1A AND Be WINDOW 1A A. Bleed

  5. Brookhaven National Laboratory/ LIGHT SOURCES DIRECTORATE Subject: VACUUM PROCEDURES FOR BEAMLINE X-11A

    Physics Websites

    Johnson, Peter D.

    Brookhaven National Laboratory/ LIGHT SOURCES DIRECTORATE Subject: VACUUM PROCEDURES FOR BEAMLINE X VACUUM GROUP ONLY) A. Bleed-Up 1. Notify the Coordinator (Beeper 5824). 2. Refer to Front-End Vacuum to Front-End Vacuum Procedures (SLS-07.19-13-1). II. SECTION BETWEEN VALVE 1A AND Be WINDOW 1A A. Bleed

  6. Brookhaven National Laboratory/ LIGHT SOURCES DIRECTORATE Subject: VACUUM PROCEDURES FOR BEAMLINE X-26A

    Physics Websites

    Johnson, Peter D.

    Brookhaven National Laboratory/ LIGHT SOURCES DIRECTORATE Subject: VACUUM PROCEDURES FOR BEAMLINE X VACUUM GROUP ONLY) A. Bleed-Up 1. Notify the Coordinator (Beeper 5824). 2. Refer to Front-End Vacuum to Front-End Vacuum Procedures (SLS-07.19-13-1). II. SECTION BETWEEN VALVE 2A AND Be WINDOW 1A A. Bleed

  7. Improving Distant Supervision for Information Extraction Using Label Propagation Through Lists

    Computer Technologies and Information Sciences Websites

    Cohen, William W.

    . For instance, a set of facts like adverse- EffectOf(meloxicam, stomachBleeding), interacts- With lead to la- beling passage 1 from Table 1 as support for the fact adverseEffectOf(, stomach); by careful filter- 1. "Avoid drinking alcohol. It may increase your risk of stomach bleeding." 2. "Get

  8. Proceedings of the 2015 Conference on Empirical Methods in Natural Language Processing, pages 524529, Lisbon, Portugal, 17-21 September 2015. c 2015 Association for Computational Linguistics.

    Computer Technologies and Information Sciences Websites

    . For instance, a set of facts like adverse- EffectOf(meloxicam, stomachBleeding), interacts- With lead to la- beling passage 1 from Table 1 as support for the fact adverseEffectOf(, stomach); by careful filter- 1. "Avoid drinking alcohol. It may increase your risk of stomach bleeding." 2. "Get

  9. Brookhaven National Laboratory/ LIGHT SOURCES DIRECTORATE Subject: VACUUM PROCEDURES FOR BEAMLINE X-14A

    Physics Websites

    Johnson, Peter D.

    . Notify the Coordinator (Beeper 5824). 2. Close and seal the Front-End High Vacuum Valve and Valve 1A. 3 (Beeper 5824). 2. Close and seal Valve 1A. 3. Coordinator places Yellow Tag on Valve 1A. 4. Slowly bleed AND VALVE 6A, MONOCHROMATOR A. Bleed-Up 1. Notify the Coordinator (Beeper 5824). 2. Close and seal Valve 1A

  10. Brookhaven National Laboratory/National Synchrotron Light Source Subject: VACUUM PROCEDURES FOR BEAMLINE X-13B

    Physics Websites

    Johnson, Peter D.

    , M0 MIRROR CHAMBER A. Bleed-Up 1. Notify the Coordinator (Beeper 5824). 2. Close and seal Valve V1 A. Bleed-Up 1. Notify the Coordinator (Beeper 5824). 2. Close and seal Valves V2A, V2B, and Valve V1. Notify the Coordinator (Beeper 5824). 2. Close and seal Valve V2B. 3. Coordinator places Yellow Tag

  11. Sudden Oak Death: Recent Developments on Trees in Europe1

    Environmental Sciences and Ecology Websites

    by Forest Research, U.K. showed that P. ramorum was also spreading onto tree stems at two main locations Risk Analysis (PRA) for Europe being prepared by Forest Research (FR), United Kingdom. Subsequently) with bleeding stem lesions was found. In 2004, another site was found to have nine Q. rubra with bleeding stem

  12. Hemophilia A Angela Torney

    Biology and Medicine Websites

    Brutlag, Doug

    trials for gene therapy have been discontinued because of complications and failure to achieve replacement therapy (blood transfusions) only when bleeding occurs. Before doing an activity with a high risk replacement therapy. Prevents bleeding that could cause permanent damage to joints, muscles, or other parts

  13. For over a decade, scientists at the University of Edinburgh have been doing research to better

    Computer Technologies and Information Sciences Websites

    Edinburgh, University of

    understand the causes and consequences of bleeding in the brain, known as brain haemorrhage. Further funding of stroke is caused by spontaneous bleeding from blood vessels into the brain, known as brain haemorrhage programme focuses on understanding what causes brain haemorrhage and what influences its outcome. Our goals

  14. Number: Revision: LS-OPS-0035 B

    Physics Websites

    Johnson, Peter D.

    VAT valve #1A AND WATER COOLED BE-WINDOW #1A. A. Bleed-up 1. Notify the Coordinator (beeper 3456 ­ 5824) 2. Close VAT valve #1A and Front End GP valve. 3. Hook up turbo pump to this section. 4. Coordinator places yellow tag on VAT valve #1A. 5. Slowly bleed up with dry nitrogen while Coordinator

  15. From HEALTH TOPICS on the UHS Web site www.rochester.edu/uhs

    Biology and Medicine Websites

    Cantlon, Jessica F.

    From HEALTH TOPICS on the UHS Web site www.rochester.edu/uhs First Aid Basics University Health bleeding by applying direct pressure on wound. · Elevate affected part if possible. · If not deep, cleanse with soap and water. · If deep, or cannot control bleeding, may need sutures. Seek medical attention. BURNS

  16. Please join us for a Special Chemical Engineering & Bioengineering Seminar

    Engineering Websites

    , and bleeding. Current treatments for these conditions include systemic drug delivery to address infection of antimicrobials can lead to the development of drug-resistant bacteria, and pressure based methods for bleeding on developing controlled release drug delivery coatings that have the potential to treat infection, inflammation

  17. Design Strategies and Applications of Tissue Bioadhesives

    Biology and Medicine Websites

    Yang, Jian

    applications, including wound closure and healing, drug delivery, implantation of medical devices, tissue In the past two decades tissue adhesives and sealants have revolutionized bleeding control and wound healing. Introduction The ability to control bleeding and wound closure dates back to ancient time when grass and leaves

  18. Analytica Chimica Acta 559 (2006) 3744 High-throughput pharmacokinetic method: Cassette dosing in mice

    Biotechnology Websites

    Hammock, Bruce D.

    2006-01-01

    in mice associated with minuscule serial bleedings and LC/MS/MS analysis Takaho Watanabe1, Daniela Schulz for pharmacokinetic studies using cassette dosing associated with serial bleeding in mice is described. PK profiles for in vivo PK studies. Because of the size of the blood sam- ple taken for analysis, different animals

  19. For Immediate Release Date: January 19, 2007 News Release Contact: Russell Houston

    Engineering Websites

    in pavement mowing strips, designing a cost-effective guardrail-to-bridge rail transition system for low. Bligh holds a Ph.D. in civil engineering from Texas A&M University and is a registered professional security and anti-terror and anti-ram devices. A registered professional engineer, Alberson holds a Ph

  20. Updated April, 2015 Suggested Courses for ME Students Interested in

    Engineering Websites

    Battaglia, Francine

    and simulation of robotic devices. #12;Updated April, 2015 ME 4534 ­ Land Vehicle Dynamics (3 credits) Analytical methods for land vehicle dynamics. Mechanics of pneumatic tires on pavement and steel wheels requirements, dynamometer testing, fuel economy, and vehicle performance. Alternative fuel vehicles

  1. West Virginia University 1 Department of Mechanical & Aerospace

    Fossil Fuels Websites

    Mohaghegh, Shahab

    ) Unmanned aerial vehicle avionic systems and flight testing · Yu Gu - Ph.D. (West Virginia University science · Kenneth H. Means - Ph.D., P.E. (West Virginia University) Kinematics, Dynamics and stability dynamics and controls · Samir Shoukry - Ph.D. (Aston University in Birmingham, United Kingdom) Pavement

  2. Updated November, 2015 Suggested Courses for ME Students Interested in

    Computer Technologies and Information Sciences Websites

    Virginia Tech

    : ECE 2574, STAT 4714 or ME 3514, STAT 3604. ME 4534 ­ Land Vehicle Dynamics (3 credits) Spring only. Analytical methods for land vehicle dynamics. Mechanics of pneumatic tires on pavement and steel wheels vehicles: Emissions standards, fleet requirements, dynamometer testing, fuel economy, and vehicle

  3. Technical Report Documentation Page 1. Report No.

    Energy Storage, Conversion and Utilization Websites

    for meeting the requirements of MAP-21. 17. Key Words Pavement Management, Asset Management, Budget Allocation NETWORK MAINTENANCE AND REHABILITATION BUDGET ALLOCATION DECISIONS 5. Report Date August 2014 6 and performance. This law requires states to develop risk-based asset management plans that include risk

  4. State DOT: ALABAMA Performance Assumptions Used to Support LCCA -State Reports -Fall 2013 Meeting

    Engineering Websites

    , Division Maintenance prioritization all of which are ultimately driven by funding. 4. What preservation, the pavement management system tracks all "awarded" projects. However, locally purchased or work performed to evaluate the performance and/or current condition of the network and, in turn, schedule and prioritize work

  5. Life-Cycle Civil Engineering Biondini & Frangopol (eds) 2008 Taylor & Francis Group, London, ISBN 978-0-415-46857-2

    Engineering Websites

    Lepech, Michael D.

    adopted as a framework for designing and constructing pave- ment systems. Life cycle assessment (LCA of pavement systems. An integrated LCA and LCCA model (LCA- LCCA) was developed to provide sustainability indi disposal. LCA is an analytical technique for assessing poten- tial environmental burdens and impacts. LCA

  6. InsideIllinoisApril 3, 2008 Vol. 27, No. 17

    Biology and Medicine Websites

    Bashir, Rashid

    legacy, cementing the social networking power of the Internet into the pavement of future campaign trails added a new high-tech wrinkle to campaign strategy by encouraging supporters to interact online, with other users as well as the cam- paign. Those personal endorsements have mustered waves of new support

  7. Stroll around Edinburgh, route description Disclaimer. Note: The information given on this website has been provided in good faith, it

    Geosciences Websites

    through trees which leads up to Lanark Rd. Go right along the pavement. Cross with care at a traffic island into leafy Spylaw Park Rd. At the first corner go right. Splylaw Ave. leads to the busy Gillespie into the mock-Tudor housing development of Gallollee. Follow through, to encounter a path, and steps, leading

  8. PUBLISHED ONLINE: 29 MAY 2011 | DOI: 10.1038/NCLIMATE1120 Divergent long-term trajectories of human access

    Geosciences Websites

    economic zones of Canada, Greenland, Russia and the US. The Northern Sea Route, Arctic Bridge and North construction caused by milder winters and deeper snow accumulation. Projected 2­4 C increases in global mean transportation systems: (1) maritime shipping, and (2) temporary winter roads and ice pavements constructed

  9. Simulating Classic Mosaics with Graph Cuts Yu Liu, Olga Veksler, and Olivier Juan

    Engineering Websites

    Veksler, Olga

    and most durable art forms. There has been a growing interest in simulating classic mosaics from digital. 1 Introduction Mosaic is one of the most ancient and durable art forms. Since ancient Greek and Roman times, people used beautiful, fascinating mosaics to decorate floor pavements, wall murals

  10. A summary of chapter 1 (pages 15) of the IMCP Manual (reference information on page 4) Technical Summary

    Engineering Websites

    of advancing concrete pavement technology through research, tech transfer, and technology implementation. Iowa, sexual orientation, gender identity, sex, marital status, disability, or status as a U.S. veteran not contain any information about maintenance and rehabilitation. The content of the IMCP manual reflects

  11. Bayesian Nets Are All There Is To Causal Dependence Wolfgang Spohn

    Multidisciplinary Databases and Resources Websites

    Fitelson, Branden

    and elsewhere): U consists of five variables: A1: season of a given year (spring, summer, fall, winter) A2: rain to some place in Southern California): #12;3 A1 (season) (rain fall) A2 A3 (sprinkler) A4 (wet pavement) A

  12. State Report Questions April 26-28, 2011 TTCC/NCC Meeting

    Engineering Websites

    , HMAC pavements are generally 100% QC/QA). The contractor is responsible for running all job control The contractor job control tests are not used for payment purposes (as payment is based on depth tolerance of spec to various degrees. TxDOT performs verification testing of all the above at a rate of at least 1

  13. Doctoral Defense "Frost Deterioration in Concrete Due to Deicer Salt Exposure

    Engineering Websites

    Kamat, Vineet R.

    Doctoral Defense "Frost Deterioration in Concrete Due to Deicer Salt Exposure: Mechanism in the presence of a deicer salt solution is considered a severe concrete exposure condition. Prolonged exposure in pavement joints has been found to erode the concrete binder material (portland cement paste) when coupled

  14. CP Tech Center I Iowa State University I 2711 S. Loop Dr. Suite 4700,Ames, IA 50010-8664 I 515-294-5798 FOR MORE INFORMATION

    Engineering Websites

    -294-5798 FOR MORE INFORMATION Concrete Property Test www.cptechcenter.org Strength Development 2-3: Set Time Purpose ­ Why Do This Test? Determining the set time of a concrete mixture during the mixture design and mixture in preventing uncontrolled cracking in the pavement. Principle ­ What is the Theory? The hydration process

  15. A summary of chapter 6 (pages 171190) of the IMCP Manual (reference information on page 4) Technical Summary

    Engineering Websites

    ) Technical Summary 6 Development of Concrete Mixtures This document is one of a set of technical summaries of chapters 1 through 10 of the Integrated Materials and Construction Practices for Concrete Pavements with the manual. This document summarizes the basic elements of concrete mix design, including the selection

  16. CP Tech Center I Iowa State University I 2711 S. Loop Dr. Suite 4700,Ames, IA 50010-8664 I 515-294-5798 FOR MORE INFORMATION

    Engineering Websites

    -294-5798 FOR MORE INFORMATION Concrete Property Test www.cptechcenter.org Purpose ­ Why Do This Test? Measuring the maturity of concrete pavements is a nondestructive test method for estimating in-place concrete strength and for quality control purposes. Other 6-1: Concrete Maturity Principle ­ What is the Theory? The degree

  17. Transportation Research Record: Journal of the Transportation Research Board, No. 2037, Transportation Research Board of the National Academies, Washington,

    Mathematics Websites

    Paulino, Glaucio H.

    higher performance at a lower cost. The objective of this research was to a the overall performance of the system (3, 4). An innovative approach that can maximize the performance while minimizing the cost of the concrete pavement is to use layers with different properties at specified depths

  18. Real Time Monitoring of Subsidence Along I-70 in Washington, Pennsylvania Kevin M. O==Connor

    Engineering Websites

    Real Time Monitoring of Subsidence Along I-70 in Washington, Pennsylvania Kevin M. O==Connor Geo for repairs nearly a dozen times over the last several years. Mine subsidence also caused power lines along, past experience had taught PennDoT that the pavement would subside and crack, and there was concern

  19. Blind testing of rock varnish microstratigraphy as a chronometric indicator: results on late Quaternary lava flows in the

    Multidisciplinary Databases and Resources Websites

    Dorn, Ron

    with available radiometric age constraints. Based on this regional chronology, varnishes from the A flow, H flow, and a stone pavement surface in the Cima volcanic field were estimated to be 16.5­24, 74­85, and 74­85 ka, respectively; these ages are consistent with previously published cosmogenic 3 He ages of 18­20, 72­74, and 80

  20. (NB: This is the English version of the paper, "Quand tous les ocans taient gels", which appeared in La Recherche, v. 355, pp.

    Geosciences Websites

    Kirschvink, Joseph L.

    and pavements, stones dropped from icebergs, poorly-sorted conglomerates where the clasts simply 'float that glacially-derived rocks of this age were scattered over all of the major continents, implying that the ice age that caused them, if it was a single event, would have dwarfed anything else in Earth history. Two