E-print Network

E-print Network

Sample search results for: bleeding pavements

 

1

LRRB Pavement Management Systems Pavement Management Systems

  Energy Storage, Conversion and Utilization Websites

Summary: LRRB Pavement Management Systems Pavement Management Systems Presented by: Michael Marti SRF devoted to local road research § Research is: · Managed by the LRRB · Conducted by DOT, U of M, Mn for implementing and monitoring research results (RIC) #12;LRRB Pavement Management Systems LRRB Structure LRRB

Minnesota, University of

2

Recycling of pavement materials 

  Texas A&M University - TxSpace

Summary: materials. A comparison was made between the recycled pavements and typical conventional asphalt concrete pavements. An economic asse?sment of thc recycled pavements was made to determine thc economic feasibility of recycling. Results of laboratory... evaluations show that: recycled pavement mixtures possess properties equivalent to conventional asphalt concrete mixtures; and rccvcl inI' con ho accom- plished with conventional ertuapment. kyar po I'lotion associated with hot-mix recycling of asphalt...

O'Neal, Randy Jim
1976-01-01

3

Pavement Thickness Design Parameter

  Engineering Websites

Summary: % ­ 5% · Be aware of unusual situations, even if low volume ­ Annual growth rate · Usually 2% ­ LengthPavement Thickness Design Parameter Impacts 2012 Municipal Streets Seminar November 14, 2012 Paul D. Wiegand, P.E. #12;Pavement Thickness Design · How do cities decide how thick to build their pavements


4

CONCRETE PAVEMENT Reference Manual

  Engineering Websites

Summary: Technology 400 7th Street AW HIPT 20 Washington, D.C. 20590 PRESERVATION WORKSHOP February 2008 Prepared Preservation Workshop 6. Performing Organization Code 8. Performing Organization Report No. 7. Author(s) 9 Notes 16. Abstract 17. Key Words 18. Distribution Statement concrete pavement, pavement preservation


5

Complications: Bleeding and

  Biology and Medicine Websites

Summary: Complications: Bleeding and Blood Clots A patient's guide Thrombosis Service #12;Can a blood thinner make me bleed? Yes. Blood thinners can protect you from getting blood clots but can also cause a change in your health ·You get hurt ·Your blood is too thin How can I tell if bleeding is serious? What

Feschotte, Cedric

6

Sustainable Concrete Pavements: A Manual of Practice

  Engineering Websites

Summary: #12;#12;#12;Sustainable Concrete Pavements: A Manual of Practice January 2012 TECHNICAL EDITORS Dr. Peter Taylor, Associate Director National Concrete Pavement Technology Center, Iowa State Taylor, Associate Director National Concrete Pavement Technology Center, Iowa State University Mr. Gary


7

Concrete Pavement Surface Characteristics

  Engineering Websites

Summary: the texture and other surface properties. Key Concept #1 #12;It is not about designing or building "innovative" surfaces, but rather the control of conventional texturing techniques. Key Concept #2 #12;What have we #12;Properties of a Quieter Pavement Surface Texture Avoid (flatten) texture at intervals > 1 inch


8

Automated pavement crack detection

  Texas A&M University - TxSpace

Summary: cracking information automatically and accurately. The analysis is performed by means of a sliding window inside which a projection histogram identifies the presence of an edge element. At the end of processing of an image, a simple analysis... of the number and orientation of the edges detected in the windows yields a classification of the crack type. The extent of the cracking is calculated by the total number of cracks found in the pavement section. To my parents. ACKNOWLEDGMENTS I wish...

Rao, Ashok Madhava
1991-01-01

9

SOURCE: UNIVERSITY OF CALIFORNIA PAVEMENT RESEARCH CENTER PAVEMENT TECHNOLOGY UPDATE

  Engineering Websites

Summary: of new and rehabilitated pavement sections incorporating long-life concepts will be increasingly important. Recognizing this, the California Department of Transportation (Caltrans) implemented its long-life PROGRAM NOVEMBER 2011, VOL. 3, NO. 2 Long-Life Asphalt Pavements By John Harvey Director, University

California at Berkeley, University of

10

Summary of Concrete Overlays Existing concrete pavement

  Engineering Websites

Summary: Monolithic pavement with new concrete surface Existing asphalt pavement with surface distresses Milled pavement with asphalt surface distresses Milled and cleaned surface New 2­5 in. (5.1­12.7 cm) bonded pavement New unbonded overlay Need for milling determined based on degree of surface distortions Existing


11

European Scanning Tour of PCC Pavements

  Engineering Websites

Summary: Findings: Construction and Materials · Recycled concrete and recycled asphalt pavement used (or mandatedEuropean Scanning Tour of PCC Pavements June 27, 2007 E. Tom Cackler, P.E. National Concrete, and implementable in the US, for achieving longer concrete pavement service lives #12;7 of 33 Findings: Pavement


12

Pavement Design TTP Orientation Seminar

  Energy Storage, Conversion and Utilization Websites

Summary: · Asphalt Concrete Surface ­ Granular bases ­ Subgrade · Concrete Surface ­ Various bases ­ Subgrade or concrete layers, open granular layers, on uncompacted subgrade #12;What are Pavements? #12;What? and will this change? · Most pavements are made of engineered soils and processed rock · Asphalt concrete is 85

Handy, Susan L.

13

Automated pavement crack detection 

  Texas A&M University - TxSpace

Summary: of the number and orientation of the edges detected in the windows yields a classification of the crack type. The extent of the cracking is calculated by the total number of cracks found in the pavement section. To my parents. ACKNOWLEDGMENTS I wish... and Unimodal III IMAGE ANALYSIS . . A. Projection Histogram B. Error Analysis on Window Size and Shape Factor 1. Shape Factor 2. Window Size C. Classification Rule 1. Two-Direction Algorithm 2. Four-Direction Algorithm 3. Eight-Direction Algorithm . D...

Rao, Ashok Madhava
1991-01-01

14

Patch detection for pavement assessment

  University of Cambridge - Dspace

Summary: Pavement management systems rely on comprehensive up-to-date road condition data to provide effective decision support for short, medium and long term maintenance scheduling. However, the cost per mile of the existing condition data collection...

Radopoulou, Stefania C.; Brilakis, Ioannis
2015-03-21

15

Adaptive prediction of pavement performance 

  Texas A&M University - TxSpace

Summary: decision support for maintaining pavement networks at an acceptable condition at the lowest life- cycle cost (I) Knowledge of future health and life in terms of performance of the pavement network is needed. Family performance curves have been developed... in a user-friendly solbvare application, thus providing a dynamic tool capable of generating and improving performance models as additional data is collected and more refined expert knowledge is gathered Florida Department of Transportation (FDOT...

Zulyaminayn, Mohammed
2002-01-01

16

PAVEMENT TECHNOLOGY UPDATE This Technology Transfer Program

  Engineering Websites

Summary: in reducing crack reflection, improving wet weather safety, and reducing pavement noise. It has also helped roads. #12;PAVEMENT TECHNOLOGY UPDATE Historic Review Rubber modification of asphalt has a long history

California at Berkeley, University of

17

of Concrete Pavements Joint PerformanCe

  Engineering Websites

Summary: practitioners under- stand how to optimize concrete pavement joint perfor- mance through the identificationof Concrete Pavements Joint PerformanCe interim Guide for optimum JUNE 2012 #12;#12;Interim Guide for Optimum Joint Performance of Concrete Pavements i Technical Report Documentation Page 1. Report No. 2


18

GEOLOGICAL NOTE Desert Pavement: An Environmental Canary?

  Engineering Websites

Summary: GEOLOGICAL NOTE Desert Pavement: An Environmental Canary? P K. Haft Division of Earth and Ocean the mosaic on a tiled floor. Clasts are seated in the underlying 6ne- grained matrix, but they arc or to the matrix. Pavement stones are often easily dislodged by a footstep_ Long-term pavement stability

Ahmad, Sajjad

19

Guide Specification for Highway Construction Texturing Concrete Pavement for

  Engineering Websites

Summary: /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


20

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

  Engineering Websites

Summary: California DOT 1. Briefly summarize your current pavement smoothness requirements. For HMA pavement to OGFC placed on existing pavement not constructed under the same project. If concrete pavement is placed ordered. 39-1.12B Straightedge The top layer of HMA pavement must not vary from the lower edge of a12-foot


21

SOURCE: UNIVERSITY OF CALIFORNIA PAVEMENT RESEARCH CENTER PAVEMENT TECHNOLOGY UPDATE

  Engineering Websites

Summary: longer than 50 years without requiring major structural rehabilitation or reconstruction, and needing and rehabilitated pavement sections incorporating long-life concepts will be increasingly important. Recognizing rehabilitation strategies (LLPRS) program in 1998 with a goal to rebuild approximately 1,740 lane-miles of high

California at Berkeley, University of

22

Rutting and drainage design methodology for a concrete block pavement 

  Texas A&M University - TxSpace

Summary: 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...

Poduska, Daryl Jason
1998-01-01

23

Rutting and drainage design methodology for a concrete block pavement

  Texas A&M University - TxSpace

Summary: 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...

Poduska, Daryl Jason
1998-01-01

24

Integrated Materials and Construction Practices (IMCP) for Concrete Pavement

  Engineering Websites

Summary: 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


25

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

  Environmental Management and Restoration Websites

Summary: Standard Pavement Design for Asphalt Concrete 26 ...........................................Table 8. FAA Non-Standard Pavement Design for Asphalt Concrete 26 ...............Table 9. Recommended Runway Portland Cement Concrete (PCC) Pavement Design 26

Cal, Mark P.

26

Las Cruces International Airport (LRU) Pavement Condition and Analysis

  Environmental Management and Restoration Websites

Summary: ...................................................Table 6. FAA Standard Pavement Design for Asphalt Concrete 21 ...........................................Table 7. FAA Non-Standard Pavement Design for Asphalt Concrete 21 ...............Table 8. Recommended Runway Portland Cement Concrete (PCC) Pavement Design 21

Cal, Mark P.

27

Toward an Improved Model of Asphalt Binder Oxidation in Pavements 

  Texas A&M University - TxSpace

Summary: Asphalt binder oxidation in pavements has been proven to be an ongoing process throughout a pavement's service life. Understanding the nature of the oxidation process is a critical step toward better pavement design to ...

Prapaitrakul, Nikornpon
2011-02-22

28

Concrete Pavements Surface Characteristics Program

  Engineering Websites

Summary: Aggregate Surface Characteristics Understand and Control Texture: Geometry and Durability #12;5 Age Function(Noise) Mix Change Surface Characteristics For the same "texture", we might get... Surface Characteristics Understand and Control Texture: which means... Mixture and Construction #12;6 Concrete Pavements Surface


29

Concrete Pavement Surface Characteristics Program

  Engineering Websites

Summary: Concrete Pavement Surface Characteristics Program Site Evaluation Report Site 211-1 (Pre- and Post grinding, along with an exposed aggregate concrete texture. Number of Test Surfaces: Seven (7) including.294.5798 www.SurfaceCharacteristics.com #12;CPSCP Site Evaluation Report 1 Overall Site Information Report Date


30

Pavement Design TTP Orientation Seminar

  Environmental Sciences and Ecology Websites

Summary: · Asphalt Concrete Surface ­ Granular bases ­ Subgrade · Concrete Surface ­ Various bases ­ Subgrade or concrete layers, open granular layers, on uncompacted subgrade #12;What are Pavements? #12;What soils and processed rock · Asphalt concrete is 85% aggregate by volume; 10% asphalt; some plastic

Handy, Susan L.

31

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

  Texas A&M University - TxSpace

Summary: Chip seals are a pavement surface treatment used for maintaining asphalt concrete pavements. National Cooperative Highway Research Program (NCHRP) Project 14-17 was performed to produce a national Chip Seal Manual which would consolidate the best...

Hoyt, Denise
2012-07-16

32

Pilot Project for Fixed Segmentation of the Pavement Network

  University of California eScholarship Repository

Summary: and concrete is very reasonable, and that GPR accuracy in predicting pavement layerlayer thicknesses of seventeen pavement sites of different types (flexible, continuously reinforced, and jointed plain concrete)

Kohler, Erwin R.; Santero, Nicholas J.; Harvey, John T
2005-01-01

33

The evaluation of airfield pavements

  Texas A&M University - TxSpace

Summary: in design practice as more service test data becomes available, Jurgenson, Leo, "The Application of Theories of Elasticity and Plas- ticity to Foundation Problems, " Contributions to Soil Mechanics, Boston Society of Civil Engineers, 1934, , p, 148 17... and Mechanical College of Texas in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 1960 Major Subject: Civil Engineering THE EVALUATION OF AIRFIELD PAVEMENTS Arthur R. Poor Captain, United States Air Force Approved...

Poor, Arthur Reginald
1960-01-01

34

The evaluation of airfield pavements 

  Texas A&M University - TxSpace

Summary: strength of the subgrade in- 8 fluences the design thickness of all materials placed upon it; and this property, determined by different procedures for flexible and rigid pave- ments, is produced by obtaining bearing properties of the soil under static... by the California bearing ratio test, which measures these strengths for static loading conditions, The action of repetitive loads of aircraft on a pavement complex mobilize the elastic proper- ties of the foundation media, and depletes the non reooverable or in...

Poor, Arthur Reginald
1960-01-01

35

1 INTRODUCTION A typical flexible pavement system includes four

  Environmental Management and Restoration Websites

Summary: 1 INTRODUCTION A typical flexible pavement system includes four distinct layers: asphalt concrete-section of flexible pavement system (Muench 2006) Pavement distress may occur due to either traffic or environmental can provide lateral drain- Geosynthetic-reinforced Pavement Systems J.G. Zornberg Professor

Zornberg, Jorge G.

36

Recommended Practice for Accepting New Concrete Pavement

  Engineering Websites

Summary: .2. If any part of this practice is in conflict with references made, such as ASTM or AASHTO Standards, Measurement of Tire/Pavement Noise Using the On-Board Sound Intensity (OBSI) Method 2.2. ASTM Standards: F the interaction of a ASTM F 2493 Standard Reference Test Tire (SRTT) on a pavement surface. #12;PP 1-2 CPSCP 3


37

Innovations in Pavement Recycling Session CTS Conference

  Energy Storage, Conversion and Utilization Websites

Summary: .asphaltisbest.com & www.asphaltalliance.com Resonant Pavement Breaker Multi-head Hammer #12;Concrete pavement in need drum vibratory rollers #12;High performance, long lasting HMA over rubblized concrete #12;#12;Design the deteriorated concrete for base without having the hauling & material costs. !! Reused existing resources rather

Minnesota, University of

38

PAVEMENT TECHNOLOGY UPDATE This Technology Transfer Program

  Engineering Websites

Summary: approach. The goal is to transition to an ME design and analysis system with software, databases, guidelines, and test methods that will result in pavements with more cost-effective life-cycles. This article of pavement design and analysis so as to reduce life-cycle costs and limit traffic delays on California

California at Berkeley, University of

39

Effects of pavement surface characteristics and textures on skid resistance 

  Texas A&M University - TxSpace

Summary: conditions or lack of suffi- cient forces between tires and pavements to properly decelerate, corner or accel. rate tice vehicles (1). Some of the factors which affect the forces between tires and pavements are th design and composition of the tire..., operating mode of the tire, pavement sur- face texture, and the thickness of water film on the pavement. (2). The effects of pavement surface texture on skid number (100 times the fric' ion coefficient under locked-wheel condition) have been investigated...

Tomita, Hisao
1970-01-01

40

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

  Texas A&M University - TxSpace

Summary: three major rigid pavements of Jointed Plain Concrete Pavement (JPCP), Jointed Reinforced Concrete Pavement (JRCP), and Continuously Reinforced Concrete Pavement (CRCP) within the perspective of economic transactions, greenhouse gases, energy use...

Mao, Zhuting
2012-10-19

41

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

Summary: Although evidence is mounting that asphalt binder oxidizes in pavements, and that oxidation and subsequent hardening of asphalt binder has a profound effect on pavement durability, important implementation issues remain ...

Han, Rongbin
2012-07-16

42

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

Summary: 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...

Han, Rongbin
2012-07-16

43

Menstrual Bleeding Patterns Following Levonorgestrel Emergency Contraception

  Physics Websites

Summary: Contraception 08/2006; 74(2): 118-24 #12;LNG EC Bleeding Patterns 2 Abstract Multiple trials by the World Health, menstrual cycle HALauthormanuscriptinserm-00088285,version1 #12;LNG EC Bleeding Patterns 3 Introduction

Paris-Sud XI, Université de

44

Concrete Pavement Sustainability Sustainability Track Leadership

  Engineering Websites

Summary: #12;What Else is Happening? · FHWA advocating "Green Paving" technologies ­ Recycled concrete, twoTrack 13: Concrete Pavement Sustainability #12;Sustainability Track Leadership Committee Members: Preservation/Rehabilitation/Recycling Strategies · S.5: Improved Economic Life Cycle Cost Analysis · S.6


45

Markovian & Weibull Approach to Concrete Pavement Monitoring

  Energy Storage, Conversion and Utilization Websites

Summary: Markovian & Weibull Approach to Concrete Pavement Monitoring Bernard Igbafen Izevbekhai, P.E., Ph, it is said to be ergodic. Other wise substitution can be costly. #12;Weibull Distribution For Failure

Minnesota, University of

46

Asphalt Oxidation Kinetics and Pavement Oxidation Modeling

  Texas A&M University - TxSpace

Summary: 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...

Jin, Xin
2012-07-16

47

BLEEDING CANKER OF HORSE CHESTNUT QUESTIONS & ANSWERS

  Renewable Energy Websites

Summary: a "running sore" consisting of an area of dying bark on a tree's trunk or branches that oozes, or "bleeds, and cankers can occur on many species of tree. 3. What causes bleeding canker of horse chestnut? Phytophthora genus, have been causing bleeding cankers on horse chestnuts (and other tree species, such as lime


48

Improving a pavement-watering method on the basis1 of pavement surface temperature measurements2

  Physics Websites

Summary: at the frequency which prevents40 the surface from drying between watering cycles. In the case of the studiedImproving a pavement-watering method on the basis1 of pavement surface temperature measurements2 Martin HENDEL1,2,3* , Morgane COLOMBERT2 , Youssef DIAB2,4 , Laurent ROYON3 3 1 Paris City Hall, Water

Paris-Sud XI, Université de

49

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

  CERN Preprints

Summary: 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.

Hendel, Martin; Diab, Youssef; Royon, Laurent
2014-01-01

50

Exploration of Pavement Oxidation Model Applications and Field Validation 

  Texas A&M University - TxSpace

Summary: oxidation have been investigated, such as oxidation kinetics, asphalt hardening in response to oxidation, pavement design, and environmental conditions. Based on understandings on those elements, pavement oxidation models have been developed to predict...

Cui, Yuanchen
2014-08-11

51

RESEARCH Open Access Pavement crack characteristic detection based

  Computer Technologies and Information Sciences Websites

Summary: are not caused by pavement distress such as tire marks, oil spills and shadows. In the field of 3D pavement crack distress such as tire marks, oil spills, shadows, and recent fillings [11]. Moreover, the shadows and poor

Joensuu, University of

52

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

  Texas A&M University - TxSpace

Summary: into surface mosaic units, examination of sediment and soil characteristics, and determination of lithology of the pavement clasts. At each BBNP study area, values for desert pavement clast size, sorting, and percent ground cover were compared to the parameters...

Harmon, Courtney Michelle
2009-05-15

53

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

  Engineering Websites

Summary: 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


54

TEXAS PAVEMENT PRESERVATION CENTER FOUR-YEAR SUMMARY REPORT

  Energy Storage, Conversion and Utilization Websites

Summary: of pavement preservation maintenance strategies in order to allow highway agencies to adopt cost- effective to pavements in poor condition. Historically, federal highway funding focused primarily on new construction states to use federal funds for highway maintenance that extends pavement life, thus raising the role

Texas at Austin, University of

55

PAVEMENT OVERLAY THICKNESS EVALUATION USING GROUND PENTRATING RADAR (GPR)

  Computer Technologies and Information Sciences Websites

Summary: deflectometer (FWD), and ground penetrating radar (GPR). Core drilling provides very accurate pin point pavementPAVEMENT OVERLAY THICKNESS EVALUATION USING GROUND PENTRATING RADAR (GPR) Dwayne Harris, M.Sc., PG for determining pavement thickness are core drilling, falling weight deflectometer (FWD), and ground penetrating

Shan, Jie

56

PARTIAL-DEPTH REPAIR OF CONCRETE PAVEMENTSCONCRETE PAVEMENTS

  Engineering Websites

Summary: April 2012 PARTIAL-DEPTH REPAIR OF CONCRETE PAVEMENTSCONCRETE PAVEMENTS GUIDE FOR #12;#12;Guide for Partial-Depth Repair of Concrete Pavements i Technical Report Documentation Page 1. Report No. 2 Depth Repair of Concrete Pavements April 2012 6. Performing Organization Code 7. Author(s) 8. Performing


57

Portland Cement Concrete Pavement Shannon Golden, Alabama DOT

  Engineering Websites

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


58

Application of Graded Finite Elements for Asphalt Pavements

  Mathematics Websites

Summary: Application of Graded Finite Elements for Asphalt Pavements William G. Buttlar1 ; Glaucio H for the continuous grading of properties in flexible pavement layers. As a result, conventional analysis methods may lead to inaccurate prediction of pavement responses and distress under traffic and environmental

Paulino, Glaucio H.

59

Fast Error Estimates For Indirect Measurements: Applications To Pavement Engineering

  Computer Technologies and Information Sciences Websites

Summary: 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

Kreinovich, Vladik

60

Asphalt Pavement Aging and Temperature Dependent Properties through a Functionally

  Mathematics Websites

Summary: Asphalt Pavement Aging and Temperature Dependent Properties through a Functionally Graded ­ Verification ­ Concluding Remarks Part ­ II (Companion presentation) ­ Asphalt Pavements ­ Effect of Aging: Asphalt concrete pavements (Part II) E1 E2 E3 Eh 1 2 3 h #12;Graded Finite Elements Graded Elements

Paulino, Glaucio H.

61

OKLAHOMA DEPARTMENT OF TRANSPORTATION PAVEMENT AND BRIDGE DECK SMOOTHNESS REQUIREMENTS

  Engineering Websites

Summary: OKLAHOMA DEPARTMENT OF TRANSPORTATION SUMMARY OF PAVEMENT AND BRIDGE DECK SMOOTHNESS REQUIREMENTS), HMA (hot mix asphalt), PCCP (P.C. concrete pavement) and Bridge Decks. Areas where 1/8 to 1/2 inch per written specifically for Pavement Smoothness which is summarized below and is also attached for your


62

Regular Inspection and Maintenance Guidance for Porous Pavements

  Environmental Management and Restoration Websites

Summary: be fitted with water jets. Pavement vacuuming should occur during spring cleanup following the last snow, and other stock piles on porous surfaces. Stockpiled snow areas on porous pavements will require additional maintenance and vacuuming. Stockpiling on snow on porous pavements is not recommended and will lead


63

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

Summary: Design The asphalt concrete (AC) mix design as specified inconcrete thickness across pavement section. N Percent Passing Mix DesignDesign Thicknesses for Pavement Test Section Pavement Layer Thickness, mm Asphalt Concrete

Bejarano, Manuel O.; Morton, Bruce S.; Scheffy, Clark
2005-01-01

64

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

  Engineering Websites

Summary: -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;


65

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

  Texas A&M University - TxSpace

Summary: for evaluating macrotexture of pavements. The paper was published in the 2011 Transportation Research Record (8). The authors of the paper are Arash Rezaei, Denise Hoyt, and Amy Epps Martin. While the use of pavement cores to evaluate pavement macrotexture... (with nitrogen purge) The hot oven method is similar to the recovery method described in ASTM D244-97C (19) with the modification that nitrogen flows over the sample to prevent oxidation and consequent aging of the material. A beaker containing 50 g...

Hoyt, Denise
2012-07-16

66

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

  Texas A&M University - TxSpace

Summary: to motorists. Signs are a required treatment in the Manual on Uniform Traffic Control Devices while pavement markings are an optional treatment. Sign treatments include diagrammatic signs, modified diagrammatic signs, the use of the black-on-yellow EXIT ONLY...

Lance, Marty Tina
1994-01-01

67

Removable Urban Pavements: An innovative, sustainable technology Journal: International Journal of Pavement Engineering

  Physics Websites

Summary: were proposed based on a configuration of precast, hexagonal concrete slabs over a hydraulic base: the Removable Urban Pavement [Maribas et al., 2005a, 2005b; de Larrard et al., 2006]. The central idea herein

Paris-Sud XI, Université de

68

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

  Texas A&M University - TxSpace

Summary: The pavement management information system (PMIS) and hics. the flexible pavement design software, FPS-19, used by the Texas Department of Transportation (TxDOT) for pavement management at network and project level ...

Mukherjee, Biswajit
1998-01-01

69

National Concrete PavementTechnology Center 2711 South Loop Drive, Suite 4700

  Engineering Websites

Summary: National Concrete PavementTechnology Center 2711 South Loop Drive, Suite 4700 Ames, IA 50010 Highway Administration, American Concrete Pavement Association, and other organizations Sponsored) · American Concrete Pavement Association (ACPA) joined the ISU-FHWA partnership to address surface


70

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

  Engineering Websites

Summary: constraints Growing backlogs of concrete pavement rehabilitation needs throughout the state. Development and Patching Faulting Roughness and Rutting Concrete pavement rehabilitation methods Grinding Dowel Bar Retrofit (DBR) Reconstruction Pavement rehabilitation trigger values Reconstruction: 1. >15% panels having


71

EVALUATION OF IN-SITU VARIABILITY OF CONCRETE PAVEMENT THICKNESS AND

  Energy Storage, Conversion and Utilization Websites

Summary: EVALUATION OF IN-SITU VARIABILITY OF CONCRETE PAVEMENT THICKNESS AND REVISED MEASUREMENT FREQUENCY plain concrete pavement (JPCP) design parameters Steve Muench, Pavement Interactive, 2003 #12;JPCP Key JPCP distresses · Transverse cracking · Joint faulting Concrete layer thickness and flexural strength

Minnesota, University of

72

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

  University of Kansas - KU ScholarWorks

Summary: Recycled Asphalt Pavement (RAP) is a removed and reprocessed pavement material containing asphalt and aggregates which can be used as a base course material for pavement applications. Geocells are a three-dimensional interconnected honeycomb type...

Thakur, Jitendra Kumar
2011-01-13

73

STONE PAVEMENTS IN DESERTS! RONALD U. COOKE

  Engineering Websites

Summary: STONE PAVEMENTS IN DESERTS! RONALD U. COOKE ABSTRACT. Stone pavenlents are armored surfaces material. They occur widely in many unvegetated areas, and preeminently in hot deserts. Payemel;t studies in several deserts, and especially in Chile and California, suggest that: 1) defla- tion nlay be a relatively

Ahmad, Sajjad

74

Pavement Design Introduction to Life Cycle

  Engineering Websites

Summary: for evaluating the total economic worth of a useable project segment by analyzing initial costs and discounted1 CE 4401 Pavement Design Introduction to Life Cycle Cost Analysis LCCA Defined (FHWA) "A process future costs, such as maintenance, reconstruction, rehabilitation, restoring, and resurfacing costs, over

Mukherjee, Amlan

75

AANP Survey Reveals Lack Of Dialogue Regarding Bleeding Disorder

  Mathematics Websites

Summary: menstruation, prolonged bleeding during dental procedures and prolonged bleeding following injury, childbirth or duration of menstruation, key questions in screening for VWD. The Centers for Disease Control

Belogay, Eugene A.

76

An analysis of pavement heat flux to optimize the1 water efficiency of a pavement-watering method2

  Physics Websites

Summary: An analysis of pavement heat flux to optimize the1 water efficiency of a pavement-watering method2 Martin HENDEL1,2,3* , Morgane COLOMBERT2 , Youssef DIAB2,4 , Laurent ROYON3 3 1 Paris City Hall, Water.hendel@paris.fr)8 9 Preprint version. Uploaded on May 12th , 2014.10 Abstract: Pavement-watering as a technique

Paris-Sud XI, Université de

77

Wearability of Portland Cement Concrete Pavement Finishes 

  Texas A&M University - TxSpace

Summary: the stopping 9 distance where hydroplaning had been a problem during wet periods. As was discussed in Section 2. 3. 1, transverse grooves effectively reduced the stopping distance while the longitudinal grooves reduced the tendency for a vehicle to slide... water removal capabilities of these finishes could be determined and an estimate of the increase in tire-pavement contact could be deter- mined. 3. Conduct further studies into the effects of lightweight aggregates, both coarse and fine, on skid...

McKeen, William Rew
1971-01-01

78

Load rating of light pavement structures

  Texas A&M University - TxSpace

Summary: be calculated from the veloc1t1es of the surface waves propagat1ng through the layers ( 14). However, the accurate interpretation of these velocities remains a task to be accomplished. Com uter Pro rams The load-deflection relationship of layered systems... transfer at pavement i nterfaces . These programs give the stresses and deflections in the continuum. Personnel of the Texas Transportation Institute [TTI] have also written various computer programs (20) which incorporate a certain degree of empiricism...

Chua, Koon Meng
1983-01-01

79

Effect of pavement temperature on the macrotexture of a semidense asphalt surface

  Computer Technologies and Information Sciences Websites

Summary: the pavement temperature could change the texture surface of the pavement. The aim of this work is to analyzeEffect of pavement temperature on the macrotexture of a semidense asphalt surface J. Luong, M the influence of the surface temperature on the macrotexture of a semidense asphalt pavement located in an urban

Boyer, Edmond

80

Principles of bituminous pavement design and the recent trends Animesh Das1

  Engineering Websites

Summary: Principles of bituminous pavement design and the recent trends Animesh Das1 Introduction Understanding pavement behaviour is a complex task. This complexity is due to the complex response of the individual pavement materials which is very difficult to predict. In a typical pavement a number

Das, Animesh

81

Full scale tests on grid reinforced flexible pavements on the French fatigue carrousel

  Computer Technologies and Information Sciences Websites

Summary: Full scale tests on grid reinforced flexible pavements on the French fatigue carrousel Pierre the long term life of grid reinforced pavements. This paper describes a full scale experiment carried out on the large pavement fatigue carrousel of IFSTTAR, to test simultaneously 3 pavement sections with different

Boyer, Edmond

82

Research Article Automatic Road Pavement Assessment with Image Processing: Review

  Computer Technologies and Information Sciences Websites

Summary: describe the proposed method to detect fine defects in pavement surface. This approach is based on a multi: the adherence, the micro-texture, the macro-texture and the surface degradations. Be- fore 1980, allResearch Article Automatic Road Pavement Assessment with Image Processing: Review and Comparison

Boyer, Edmond

83

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

  Texas A&M University - TxSpace

Summary: and are usually concentrated on low-sloping alluvial fans and desert piedmont surfaces. McFadden et al. (1987) suggested the accretionary mantle model of desert pavement formation, following research on pavements atop the Cima volcanic complex in the Mojave Desert...

Harmon, Courtney Michelle
2009-05-15

84

Bituminous pavement recycling Aravind K. and Animesh Das

  Engineering Websites

Summary: . Recycling Methods Based on the process adopted in recycling the bituminous mix, it can be broadly classified of existing pavement geometrics etc. It is also reported that recycled mix has higher resistance to shearing to be less with recycled mix [2]. Bituminous pavement recycling technology is not yet a popular in India

Das, Animesh

85

COLORADO DEPARTMENT OF TRANSPORTATION Sustainability of Concrete Pavement

  Engineering Websites

Summary: 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


86

Structural design of pavements with stabilized layers Animesh Das

  Engineering Websites

Summary: Structural design of pavements with stabilized layers Animesh Das Associate Professor, Department briefly. In the next part, various design philosophies for the design of pavements with stabilized the equivalent CBR (of stabilized sub-base resting on soil subgrade) can be estimated. Further, the mechanistic

Das, Animesh

87

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

  Engineering Websites

Summary: turf drag. The artificial turf shall be made of molded polyethylene with synthetic turf blades control of the time and rate of texturing. The artificial turf shall be full pavement width.09(e): "(3) Type C. Texturing of the plastic concrete shall be obtained by the use of an artificial


88

International Symposium on Pavement LCA (Pavement LCA 2014) TRB Co-Sponsored

  Energy Storage, Conversion and Utilization Websites

Summary: AFD00(1)) FHWA Co-Sponsored (Sustainable Pavement Task Group) Location: UC Davis Campus Conference. Anticipated Products: Pre-conference document for discussion at breakout sessions, conference document and results of breakout sessions and summary session, website for workshop, and published proceedings

California at Davis, University of

89

Load rating of light pavement structures 

  Texas A&M University - TxSpace

Summary: s usually generated by a steady state s1nuso1dal force vibrator. An example of th1s 1s the Dynaflect (12). It must be noted that the dynamic stiffness measured is dependent on the driving frequency used. However, at low frequency, the dynamic st1... techniques can be sub-d1vided into those inducing a steady state vibration and those delivering a seismic (impulse) signal to the pavement. The strength of these methods is that the layer properties can be determ1ned. The moduli of the layers can...

Chua, Koon Meng
1983-01-01

90

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

  University of Kansas - KU ScholarWorks

Summary: Recycled Asphalt Pavement (RAP) is a removed and reprocessed pavement material from deteriorated asphalt pavements containing asphalt binder and aggregates. The use of RAP can reduce the cost of construction materials, reduce the amount of waste...

Thakur, Jitendra Kumar
2013-08-31

91

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

  Mathematics Websites

Summary: Asphalt Pavement Aging and Temperature Dependent Properties through a Functionally Graded simulations, correspondence principle, finite-element method Abstract. Asphalt concrete pavements to climatic conditions are the major cause of such graded non-homogeneity. Current pavement analysis

Paulino, Glaucio H.

92

Road Materials and Pavements Design. Volume X No X/2013, pages 1 to n Review of glass fiber grid use for pavement

  Physics Websites

Summary: on the accelerated pavement testing facility of the IFSTTAR are presented. They confirm that glass fiber grid, Accelerated Pavement Testing hal-00848357,version1-26Jul2013 Author manuscript, published in "Road Materials of glass fiber grids in pavement reinforcement. Then some results of recent full scale tests

Paris-Sud XI, Université de

93

Dynamic response of guardrail systems encased in pavement mow strips 

  Texas A&M University - TxSpace

Summary: Strong post guardrail systems have long been employed to keep misguided vehicles on the roadway. In order to combat vegetation growth around the posts, many new guardrail installations are being encased in pavement mow strips. By increasing...

Seckinger, Nathaniel Ryan
2002-01-01

94

Belen Alexander Municipal Airport (E80) Pavement Condition and Analysis

  Environmental Management and Restoration Websites

Summary: ;................................................................................................4. Recommend Pavement Design 19 .................................................Table 5. Design Aircraft Used Municipal Airport (E80) Aircraft Operations (2007-2008) 5 .....Table 2. Belen Alexander Municipal Airport (E80) Predicted Aircraft Operations 2010-25 6 ...............Figure 2. Belen Alexander Municipal

Cal, Mark P.

95

Sierra Blanca Ruidoso Airport (SRR) Pavement Condition and Analysis

  Environmental Management and Restoration Websites

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

Cal, Mark P.

96

Double Eagle II Airport (AEG) Pavement Condition and Analysis

  Environmental Management and Restoration Websites

Summary: ........................................................................................4. Recommend Pavement Design 17 .........................................Table 5. Design Aircraft. Double Eagle II (AEG) Aircraft Operations (2006) 5 .......................Table 2. Double Eagle II (AEG) Predicted Aircraft Operations 2010-2025 6 ..................................................Figure 2. Double

Cal, Mark P.

97

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

  Environmental Management and Restoration Websites

Summary: . Recommend Pavement Design 19 ......................................................Table 5. Design Aircraft. 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

Cal, Mark P.

98

Moriarty Municipal Airport (0E0) Pavement Condition and Analysis

  Environmental Management and Restoration Websites

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

Cal, Mark P.

99

Deming Municipal Airport (DMN) Pavement Condition and Analysis

  Environmental Management and Restoration Websites

Summary: .........................................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 ........................................................................................4. Recommend Pavement Design 22 ......................................................Table 5

Cal, Mark P.

100

Clayton Municipal Airport (CAO) Pavement Condition and Analysis

  Environmental Management and Restoration Websites

Summary: ;........................................................................................4. Recommend Pavement Design 19 .........................................Table 5. Design Aircraft Used Airport (CAO) Aircraft Operations (2005-2009) 5 .....Table 2. Clayton Municipal Airport (CAO) Predicted Aircraft Operations 2007-2027 6 ..................Figure 2. Clayton Municipal Airport (CAO) PCI Branch Map

Cal, Mark P.

101

Raton Municipal Airport (RTN) Pavement Condition and Analysis

  Environmental Management and Restoration Websites

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

Cal, Mark P.

102

Graded Viscoelastic Approach for Modeling Asphalt Concrete Pavements

  Mathematics Websites

Summary: AND MOTIVATION The aging of asphalt concrete pavements is well established and has been studied by numerous the temperature variation in the asphalt concrete overlay. Dynamic Modulus, E* (GPa) 5 10 15 FIGURE 1. Aged

Paulino, Glaucio H.

103

Multi-period optimization of pavement management systems 

  Texas A&M University - TxSpace

Summary: The purpose of this research is to develop a model and solution methodology for selecting and scheduling timely and cost-effective maintenance, rehabilitation, and reconstruction activities (M & R) for each pavement section ...

Yoo, Jaewook
2004-09-30

104

Improved Grade Crossing Safety with In-Pavement Warning Lights

  University of California eScholarship Repository

Summary: a signal expert from Union Pacific. Introduction Rail is ana new crossing signal concept. In the present case, the railrail corridor. This project has examined means of improving commercial off-the-shelf in-pavement signals

Cohn, Theodore E.
2005-01-01

105

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

  Engineering Websites

Summary: COMPOSITE PORTLAND CEMENT CONCRETE PAVEMENTS (Tollway) Effective: January 30, 2012 Revised: May 8, 2013 DESCRIPTION This work consists of: 1. Furnishing, mixing, and placing ternary concrete mixes Provision; 2. Supplying and installing all specified reinforcement; 3. Developing concrete mix design


106

Automated crack control analysis for concrete pavement construction

  Texas A&M University - TxSpace

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

Jang, Se Hoon
2005-11-01

107

OVERLAYSSustainable Solutions for Resurfacing and Rehabilitating Existing Pavements THIRD EDITION

  Engineering Websites

Summary: 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


108

Incorporating uncertainty in the Life Cycle Cost Analysis of pavements

  MIT - DSpace

Summary: 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 ...

Swei, Omar Abdullah
2012-01-01

109

Life cycle assessment of concrete pavements : impacts and opportunities

  MIT - DSpace

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

Loijos, Alex (Alexander Nikos)
2011-01-01

110

Complex Modulus Prediction of Asphalt Concrete Pavement Cores 

  Texas A&M University - TxSpace

Summary: Complex modulus is one of the key parameters in the Mechanistic-Empirical Pavement Design Guide (MEPDG). The purpose of this study is to implement an accurate and high-efficiency mechanical method to measure and calculate ...

Ling, Meng
2013-12-02

111

3-D Seismic Methods for Shallow Imaging Beneath Pavement

  University of Kansas - KU ScholarWorks

Summary: The research presented in this dissertation focuses on survey design and acquisition of near-surface 3D seismic reflection and surface wave data on pavement. Increased efficiency for mapping simple subsurface interfaces ...

Miller, Brian
2013-05-31

112

Automated crack control analysis for concrete pavement construction 

  Texas A&M University - TxSpace

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

Jang, Se Hoon
2005-11-01

113

Pervious Pavement A Strategic Plan For NYC DOT

  Biology and Medicine Websites

Summary: - A Strategic Plan for NYC DOT 4 Grey Green Newtown Creek Digester Eggs Bioswale Ø Two Priority Watersheds § Flushing Bay Watershed § Newtown Creek Watershed Pavement - A Strategic Plan for NYC DOT 7 Newtown Creek Flushing Bay #12

Qian, Ning

114

Guide Specification for Highway Construction Texturing Concrete Pavement for

  Engineering Websites

Summary: Technology Center 2711 South Loop Drive, Suite 4700 Ames, IA 50010 #12;GS 1-1 CPSCP Guide Specification improve pavement characteristics that affect ride quality such as slab warp and curl. If applicable


115

Rehabilitation of continuously reinforced concrete pavements using overlays 

  Texas A&M University - TxSpace

Summary: also considers the effect of climatic factors in the design and performance of CRC overlays or overlays on CRC pavements. Climate and fatigue effects have been identified in the literature as causes for the development of failures like rutting... (predominant in AC overlays of CRC pavements), reflective cracking and delamination. However, there is little documentation of the effect of these failure modes on the performance or longevity of the overlay. The findings and the results of this project...

Sriraman, Soumya
1993-01-01

116

An evaluation of the flexible pavement design system FPS19

  Texas A&M University - TxSpace

Summary: AN EVALUATION OF THE FLEXIBLE PAVEMENT DESIGN SYSTEM FPS18 A Thesis by GERARDO MARTINEZ CARMONA Submitted to the Office of Graduate Studies of Texas ASM University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE May 1998 Major Subject: Civil Engineering AN EVALUATION OF THE FLEXIBLE PAVEMENT DESIGN SYSTEM FPS1II A Thesis by GERARDO MARTINEZ CARMONA Submitted to Texas A&M University in partial fulfillment of the requirements for the degree...

Carmona, Gerardo M
1998-01-01

117

Rehabilitation of continuously reinforced concrete pavements using overlays

  Texas A&M University - TxSpace

Summary: REHABILITATION OF CONTINUOUSLY REINFORCED CONCRETE PAVEMENTS USING OVERLAYS A Thesis by SOUMYA SRIRAMAN Submitted to the Graduate College of Texas ARM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... August 1993 Major Subject: Civil Engineering REHABILITATION OF CONTINUOUSLY REINFORCED CONCRETE PAVEMENTS USING OVERLAYS A Thesis by SOUMYA SRIRAMAN Submitted to Texas A&M University in partial fulfillment of the requirements for the degree...

Sriraman, Soumya
1993-01-01

118

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

  Texas A&M University - TxSpace

Summary: in a concrete pavement system. The erosion of material beneath a concrete slab is an important performance-related factor that if applied to the selection of base materials can enhance the overall design process for concrete pavement systems. However...

Jung, Youn Su
2010-10-12

119

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

  Texas A&M University - TxSpace

Summary: never been more important due to the current fiscal environment. Agencies use pavement management systems to store data describing the state of the network. This information is often used to help make decisions regarding the location of pavement...

Gurganus, Charles Felder
2011-08-08

120

Permanent Deformation of Asphalt Concrete Pavements: A Nonlinear Viscoelastic Approach to Mix Analyses and Design

  University of California eScholarship Repository

Summary: model. 34 3.1.1 Mix Design: The asphalt concrete mix used inConcrete Pavements: A Nonlinear Viscoelastic Approach to Mix Analyses and DesignConcrete Pavements: A Nonlinear Viscoelastic Approach to Mix Analyses and Design

Long, Fenella Margare
2001-01-01

121

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

  Texas A&M University - TxSpace

Summary: including average daily traffic, equivalent single axle loads, distress score, ride score, annual rainfall, annual freeze/thaw cycles, functional classification, as well as the district that maintains the pavement. For each pavement type and highway...

Fogle, Kendall Lee
1998-01-01

122

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

  Texas A&M University - TxSpace

Summary: Transportation Agencies (STAs) in rendering better-informed decisions for the concrete pavement material choices, the major research objective is to analyze the environmental, economic, and social impacts of the four concrete pavement alternatives from...

Park, Hyunsoung
2014-12-12

123

Determination of the Presence Conditions of Pavement Markings using Image Processing

  Texas A&M University - TxSpace

Summary: Pavement markings, as a form of traffic control devices, play a crucial role in safely guiding drivers. Restriping pavement markings is an important task in the maintenance of traffic control devices. Every year state agencies spend a lot of money...

Ge, Hancheng
2012-10-19

124

Development of a Pavement Quality Index for the State of Ohio

  University of California eScholarship Repository

Summary: the only performance indicator is that pavement managementmanagement section is currently upgrading our performancemanagement system (PMS) to help set priorities. The PMS includes a method for evaluating pavement performance

Reza, F; Boriboonsomsin, K; Bazlamit, S
2006-01-01

125

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

  Texas A&M University - TxSpace

Summary: Transportation Agencies (STAs) in rendering better-informed decisions for the concrete pavement material choices, the major research objective is to analyze the environmental, economic, and social impacts of the four concrete pavement alternatives from...

Park, Hyunsoung
2014-12-12

126

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

  Texas A&M University - TxSpace

Summary: characteristics and asphalt pavement skid resistance. Many states have implemented wet weather accident reduction programs aimed at maintaining acceptable levels of pavement skid resistance. Proper aggregate selection before construction aids in maintaining...

Luce, Anthony David
2009-05-15

127

Determination of the Presence Conditions of Pavement Markings using Image Processing 

  Texas A&M University - TxSpace

Summary: . In this study, a systematic approach that can automatically determine the presence conditions of pavement markings using digital image processing techniques is presented. These techniques are used to correct the geometric deformity, detect colors of pavement...

Ge, Hancheng
2012-10-19

128

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

  Texas A&M University - TxSpace

Summary: of NDTs are associated wilh layer thickness measurements and void detection under concrete pavement (" Guide" 1993). Pavement Friction Pavement friction, or skid resistance, is commonly categorized as a pavement safety factor. Skid resistance may... Functions . . . 3. 14 Modified Decision Process: A4 Sublevel I unctions. Page 19 20 . . 21 25 . . . . . 42 43 . 44 . . . . . . 46 . 48 . 49 . 51 52 . . . 54 55 . . . 56 56 . . . 57 3. 15 Modified Decision Process: Sublevel Functions of A...

Herrera, Edgar Efren
2001-01-01

129

Evaluation of geogrids for stabilising weak pavement subgrade Xiaochao Tang1

  Engineering Websites

Summary: Evaluation of geogrids for stabilising weak pavement subgrade Xiaochao Tang1 , Ghassan R. Chehab to their effectiveness in the stabilisation of pavement subgrade. Geogrid properties, including aperture size, wide-scale interface test results, including direct shear and pull-out, and accelerated pavement testing (APT) results

Palomino, Angelica M.

130

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

  Energy Storage, Conversion and Utilization Websites

Summary: 1 CE 363 - TRANSPORTATION ENGINEERING AND PAVEMENT DESIGN Fall 2009 Course Syllabus Catalog (4) CDT of transportation engineering and pavement design. Specifically, students should understand the basic concepts and engineering principles of transportation engineering and pavement design. They should be able to apply

Hickman, Mark

131

LRRB Pavement Management SystemsTraffic Generator Managing Interaction Between Local

  Energy Storage, Conversion and Utilization Websites

Summary: State University D6/D7/D8 Wind Farm Group #12;LRRB Pavement Management SystemsTraffic Generator Project Objective #12;LRRB Pavement Management SystemsTraffic Generator Wind Power · Fastest-growing source% of their energy from renewable sources by 2025. #12;LRRB Pavement Management SystemsTraffic Generator MN Wind

Minnesota, University of

132

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

  Engineering Websites

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


133

FIELD AND COMPUTER SIMULATION EXPERIMENTS ON THE FORMATION OF DESERT PAVEMENT

  Engineering Websites

Summary: FIELD AND COMPUTER SIMULATION EXPERIMENTS ON THE FORMATION OF DESERT PAVEMENT JOHN WAINWRIGHT1), to observe the speed at which desert pavement surfaces could be re-established following disturbance erosion processes. Copyright # 1999 John Wiley & Sons, Ltd. KEY WORDS: raindrop erosion; desert pavement

Ahmad, Sajjad

134

Evolution of desert pavements and the vesicular layer in soils of the Transantarctic Mountains

  Engineering Websites

Summary: Evolution of desert pavements and the vesicular layer in soils of the Transantarctic Mountains: Desert soils Soil chronosequences Pavement development index Ventifaction Desert varnish Compared to mid-latitude deserts, the properties, formation and evolution of desert pavements and the underlying vesicular layer

Ahmad, Sajjad

135

Synthesis on Use of Geosynthetics in Pavements and Development of a

  Engineering Websites

Summary: layers of a pavement structure. Individual applications for geosynthetics include separation-the-practice on the application of geosynthetic materials in pavement systems and the related modeling. For this work, the scopeSynthesis on Use of Geosynthetics in Pavements and Development of a Roadmap to Geosynthetically


136

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

  Engineering Websites

Summary: of Technology in 1986 and 1997. His research mainly focuses on fractals, rendering & modeling natural objects. The pavement texture is then obtained by generating a stone shape for each cell with the subdivision surface, the boundary shape of the pavement and the average size of the pavement stones are specified as input geometric

Shimada, Kenji

137

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

  Environmental Management and Restoration Websites

Summary: Water Quality and Hydrologic Performance of a Porous Asphalt Pavement as a Storm-Water Treatment examined the functionality of a porous pavement storm-water management system in coastal New Hampshire where 6 months of subfreezing temperatures typically occur. The usage of porous pavements for storm-water


138

Do et al. 1 Full Scale Tests for the Assessment of Wear of Pavement Surfaces

  Computer Technologies and Information Sciences Websites

Summary: Do et al. 1 Full Scale Tests for the Assessment of Wear of Pavement Surfaces Minh-Tan Do subjected to heavy traffic. Reports can be found in (1)(2). Evolution of pavements during its whole service shown in the figure 2. By this way, during tests on one track, pavement construction can be carried out

Boyer, Edmond

139

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

  Engineering Websites

Summary: PRECAST REPLACEMENT OF CONCRETE PAVEMENT SLABS (Tollway) Effective: March 30, 2009 Revised: October 19, 2012 DESCRIPTION. This work shall consist of the removal of existing concrete pavement, restoration of the subbase material, the installation of precast concrete pavement slabs in accordance


140

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

  Mathematics Websites

Summary: 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 mechanisms in regions with cooler climates. At present, the AASHTO Mechanistic-Empirical Pavement Design

Paulino, Glaucio H.

141

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

  Mathematics Websites

Summary: and applications to flexible pavements Eshan V. Dave1,,,, Glaucio H. Paulino2,§ and William G. Buttlar2,¶, 1 for modeling geotechnical and pavement structures exhibiting significant non-homogeneity. Property gradients pavements. Investigation of time-dependent behavior combined with functionally graded property gradation can

Paulino, Glaucio H.

142

National Concrete PavementTechnology Center 2711 South Loop Drive, Suite 4700

  Engineering Websites

Summary: National Concrete PavementTechnology Center 2711 South Loop Drive, Suite 4700 Ames, IA 50010 Pavement Surface Characteristics July 2006 July 2006 Completed in cooperation with the Federal Highway Administration, American Concrete Pavement Association, and other organizations Sponsored by Federal Highway


143

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

  Mathematics Websites

Summary: 7. Low temperature cracking in HMA 367 #12;#12;Pavement Cracking ­ Al-Qadi, Scarpas & Loizos (eds, Storrs, Connecticut, USA ABSTRACT: Low temperature cracking remains one of the major pavement distresses in asphalt concrete pavements in cold regions. An integrated laboratory testing, field performance data

Paulino, Glaucio H.

144

Noise Reduction of a Turbofan Bleed Valve Vincent Phong1

  Engineering Websites

Summary: Noise Reduction of a Turbofan Bleed Valve Vincent Phong1 , Shervin Taghavi Nezhad2 , Feng Liu3 and computational research effort investigated the noise sources of a pneumatic bleed valve used in turbofan engines, rapid-prototyped valve designs which enabled the exploration of a large parameter space. Microphone

Papamoschou, Dimitri

145

Heavy Metals in Glass Beads Used in Pavement Markings

  Texas A&M University - TxSpace

Summary: of heavy metals in glass beads used in pavement markings and their effect on human and environmental health. Based upon the potential risk associated with the presence of arsenic and lead in the glass beads, two Bills are currently being considered before...

Mangalgiri, Kiranmayi
2012-07-16

146

Field performance of geosynthetic reinforced pavements over expansive clay subgrades

  Environmental Management and Restoration Websites

Summary: during settlements caused during dry sea- sons. Figure 1 illustrates the envisioned mechanism that leads of the soil in the vicinity of the pave- ment shoulders (Figure 1a). This leads to settlements in the shoulder of longitudinal crack development on pavements over expansive clays 9th International Conference on Geosynthetics

Zornberg, Jorge G.

147

Implications of reliability in mechanistic/empirical pavement design applications 

  Texas A&M University - TxSpace

Summary: that addresses this issue. One way to solve the problem is by using mechanistic/empirical models in designing both pavement types and applying the same rules of reliability to both as well. The main characteristic of a mechanistic/empirical design is its...

Killingsworth, Brian Mark
1994-01-01

148

Salt Frost Deterioration in Concrete Pavement --Causes and Mitigation

  Engineering Websites

Summary: Salt Frost Deterioration in Concrete Pavement --Causes and Mitigation Zhichao Liu, Will Hansen and special effects such as surface tension and osmotic effect (salt solution). ·Below the nucleation the surface contains a salt solution, pore suction attracts surface liquid and additional ice growth may


149

Permeable Interlocking Concrete Pavement (PICP) for Stormwater Management

  Environmental Management and Restoration Websites

Summary: 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


150

Porous Pavement in Cold Climates Part: Performance and Cost

  Environmental Management and Restoration Websites

Summary: 90 80 70 60 50 40 30 20 10 0 %RemovalEfficiency Porous Asphalt Pervious Concrete Retention Pond ` #12;17 Hydrrologic Performance of Porous Pavements Pervious Concrete (HSG-B)Porous Asphalt (HSG-C) #12;0 10 20 30 40


151

TWO LIFT PCC PAVEMENTS TO MEET PUBLIC NEEDS

  Engineering Websites

Summary: CONSTRUCTION 1906 ­ Granitoid concrete patent 1950-1990 ­ Interstate mesh pavement 1970-2000 ­ Design changes, Kansas, Michigan ­ Wet on wet construction ­ Use of recycled materials in base layer ­ Capping of base BENFITS IDENTIFIEDBENFITS IDENTIFIEDBENFITS IDENTIFIED Construction material conservation/recycling


152

MANUAL FOR WEB-BASED TXDOT RIGID PAVEMENT Sureel Saraf

  Energy Storage, Conversion and Utilization Websites

Summary: 0-5445-P2 MANUAL FOR WEB-BASED TXDOT RIGID PAVEMENT DATABASE Authors: Sureel Saraf Moon Won Tx NOT INTENDED FOR CONSTRUCTION, BIDDING, OR PERMIT PURPOSES. Research Supervisor: Moon Won #12;#12;Web web-application for enabling access to the database within a network, and accessing the data from

Texas at Austin, University of

153

Guide Specification for Highway Construction Texturing Concrete Pavement for

  Engineering Websites

Summary: and by tining. 4. DRAG PRETEXTURE 4.1. Drag artificial turf or burlap longitudinally along the concrete pavement.2. The turf or burlap drag shall be a single piece of artificial turf or burlap of sufficient length to span surface after finishing to enhance texture. The turf or burlap shall be mounted on a work bridge


154

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

  Engineering Websites

Summary: 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 string applied parallel to the surface. The surface is checked 1' inside the edges of the pavement


155

Porous Pavements in Cold Climates Part 1: Design, Installation, and

  Environmental Management and Restoration Websites

Summary: to the protection of water resources through effective stormwater management · Research and development of stormwater treatment systems · To provide resources to stormwater communities currently involved in design Manager, CH2M HILL ASCE Committee Report on Recommended Design Guidelines for Permeable Pavements


156

SORPTIVITY-BASED SERVICE LIFE PREDICTIONS FOR CONCRETE PAVEMENTS

  Materials Science Websites

Summary: The degradation of concrete pavements is often controlled by the transport of a deleterious species (chloride or sulfate ions, or water in the case of freeze/thaw) into the concrete. With this in mind, a three. For this project, degradation mechanisms for sulfate attack (ettringite-induced expansion) and freeze

Bentz, Dale P.

157

Clinical Features: Bernard-Soulier Syndrome (BSS) is a severe bleeding disorder characterized by a prolonged bleeding time,

  Biology and Medicine Websites

Summary: by a prolonged bleeding time, thrombocytopenia, and extremely large platelets. Patients have a decreased number of giant platelets, and their blood is unable to clot following a cut because of abnormal platelet function and the platelets do not adhere to each other, leading to increased bleeding time. Median age of first symptom

Gilad, Yoav

158

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

  Engineering Websites

Summary: ModelConcrete Model Motivation and Introduction Viscoelastic Characterization of Asphalt Concrete% of pavement surface in United States) #12;MotivationMotivation Cracking in Asphalt Concrete Pavements/reflective crackinginterlayers) to prevent thermal/reflective cracking #12;MotivationMotivation: Progress in Recent Years

Paulino, Glaucio H.

159

Road Materials and Pavements Design. Volume X No X/2009, pages 1 to 16 Pavement Design for Curved Road Sections

  Physics Websites

Summary: Road Sections Fatigue performance of interfaces and longitudinal top- down cracking in multilayered design. Previous research has targeted the experimental fatigue performance of tack coats. The French Pavement Design method has been chosen herein to illustrate how interface fatigue performance can lead

Paris-Sud XI, Université de

160

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

  Texas A&M University - TxSpace

Summary: Current materials and construction specifications for pavement preservation treatments are predominantly prescriptive and they have little or no methodical linkage between initial treatment quality and future performance. ...

Liu, Litao
2013-09-23

161

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

  Texas A&M University - TxSpace

Summary: . The researcher measured the retroreflectivity of 18 pavement marking samples under 14 different conditions. The American Society for Testing and Materials (ASTM) has three standards for measuring the retroreflectivity of pavement markings under: dry (E-1710...

Pike, Adam Matthew
2007-04-25

162

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

  Texas A&M University - TxSpace

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

Jin, Xin
2012-02-14

163

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

  Texas A&M University - TxSpace

Summary: 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...

Pike, Adam Matthew
2007-04-25

164

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

  Texas A&M University - TxSpace

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

Jin, Xin
2012-02-14

165

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

  Texas A&M University - TxSpace

Summary: Retroreflective Raised Pavement Markers (RRPMs) supplement other pavement markings to provide guidance to road users. Previous research concerning durability of the RRPMs suggests that their performance has been degrading ...

Agrawal, Ravi Prakash
2006-08-16

166

The new Mechanistic-Empirical Pavement Design Guide (MEPDG) developed under the National Cooperative Highway Research Program (NCHRP) Project 1-37A represents a major change as compared to the 1993 AASHTO Pavement

  Environmental Sciences and Ecology Websites

Summary: was developed.The MEPDG design software version 1.1 was then used to predict the pavement performance on the pavement performance. Before replacing the 1993 Pavement Design Guide (and its accompanying DARWin 3.1 design software) currently used by Louisiana Department ofTransportation and Development (LADOTD

Harms, Kyle E.

167

Layer equivalency factors and deformation characteristics of flexible pavements 

  Texas A&M University - TxSpace

Summary: 190 (di rection North) Layers and Thickness Oepth Thickness (ft) (in. ) 0 ? 1. 2 Seal Coat Iron Ore 11. 0 Select Sand 11. 0 Test No. 147 143 139 146 142 138 Pressuremeter Nodulus* (kpa) o U R 22900 702000( 779000 25800 722000( 110000... LAYER EOUIVALENCY FACTORS AND DEFORMATION CHARACTERISTICS OF FLEXIBLE PAVEMENTS A Thesis by Jung-Tsann Hung Submitted to the Graduate College Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE...

Hung, Jung-Tsann
1981-01-01

168

Reliability of Pavement Structures using Empirical-Mechanistic Models J. A. Prozzi, Ph.D. (corresponding author)

  Engineering Websites

Summary: Page 2 INTRODUCTION The current AASHTO design equation for the design of flexible pavement structures for flexible and rigid pavement design. The original mathematical model chosen for both the flexible and rigidReliability of Pavement Structures using Empirical-Mechanistic Models by J. A. Prozzi, Ph

Manuel, Lance

169

Cracks in desert pavement rocks: Further insights into mechanical weathering by directional insolation

  Engineering Websites

Summary: Cracks in desert pavement rocks: Further insights into mechanical weathering by directional August 2010 Keywords: Desert pavements Physical weathering Desert geomorphology Insolation weathering Fractures The formation of cracks is a fundamental first step in the physical weathering of rocks in desert

Ahmad, Sajjad

170

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

  Engineering Websites

Summary: Authors Measuring and ReportingTire-Pavement Noise Using On-Board Sound Intensity (OBSI) Concrete worldwide using the On-Board Sound Intensity (OBSI) method. OBSI measures tire-pavement noise at the source using microphones in a sound intensity probe configuration mounted to the outside of a vehicle, near


171

Equations for predicting the layer stiffness moduli in pavement systems containing lime-flyash stabilized materials

  Texas A&M University - TxSpace

Summary: and subgrade modulus Esg with time ? Site 12 25 Nean pavement temperature versus Deflection ad)ustment factor (~37 ~pa e 100 101 '1 02 103 104 105 106 107 CHAPTER I INTRODUCTION The performance of a pavement structure is dependent on a large...

Alam, Shah Manzoor
1984-01-01

172

AN IMPROVED DYNAMIC MODEL FOR THE STUDY OF A FLEXIBLE PAVEMENT

  Mathematics Websites

Summary: -destructive tests (NDT) have become increasingly popular, for allowing pave- ment overlay designs to be based on the in situ conditions of a pavement structure. Among the array of NDT tests, standard methods are limited Weight De- ectometer (FWD) is the most popular for the NDT testing of exible pavements. The FWD (see Fig

Avignon et des Pays de Vaucluse, Université de

173

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

  Engineering Websites

Summary: 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


174

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

  Engineering Websites

Summary: = 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


175

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

  Engineering Websites

Summary: Implementation Activities supporting the International Technology Scan on Long-Life concrete Pavements. In May 2006, a team of thirteen concrete pavement and materials specialist from the United States, construction practices, and maintenance strategies used to construct and manage Portland cement concrete


176

TRANSPORTATION RESEARCH RECORD 1574 Paper No. 971071 89 Performance of Rigid Pavements

  Engineering Websites

Summary: Recycled Concrete Aggregates GREGORY D. CUTTELL, MARK B. SNYDER, JULIE M. VANDENBOSSCHE, AND MONTY J. WADE designed and constructed rigid pavements containing recycled concrete aggregate (RCA). Success has been the recycled pavements that incorporated RCA derived from concrete affected by D-cracking and alkali

Vandenbossche, Julie M.

177

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

  Engineering Websites

Summary: ­ especially in top lift of two-lift concrete. Recycled material use was big ­ another real potentialVideo Conference Agenda and Meeting Notes: Two-Lift Concrete Pavements 27 June 2007 Location: FHWA:10 am International Scan on Long Life Concrete Pavements Tom Cackler, Director National Concrete


178

Influence of relative surface age on hydraulic properties and infiltration on soils associated with desert pavements

  Engineering Websites

Summary: with desert pavements Darren G. Meadows a, , Michael H. Young a , Eric V. McDonald b a Desert Research Desert Research Institute, Nevada System for Higher Education, 2215 Raggio Pkwy. Reno, NV 89512, United horizons found in desert pavement environments are known to evolve pedogenically over geologic time

Ahmad, Sajjad

179

Response of desert pavement to seismic shaking, Hector Mine earthquake, California, 1999

  Engineering Websites

Summary: Response of desert pavement to seismic shaking, Hector Mine earthquake, California, 1999 P. K. Haff 2005. [1] The October 1999 Mw 7.1 Hector Mine earthquake in the Mojave Desert, California, generated characteristic surface disturbances on nearby desert pavements. These disturbances included (1) zones

Ahmad, Sajjad

180

Dynamical Processes on Desert Pavements and the Healing of Surficial Disturbances

  Engineering Websites

Summary: Dynamical Processes on Desert Pavements and the Healing of Surficial Disturbances PETER K. HAFF, California, 92093-0225 Received June 16, 1994 Mature desert pavements are traditionally regarded as hall animals is a major component of the healing process. © 1996 University of Washington. INTRODUCTION Desert

Ahmad, Sajjad

181

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

  Engineering Websites

Summary: to the pavement structure (R-90 2009). Further, such bound material can additionally contribute to the fatigue 1978, Theyse et al. 1996). As per M-E approach, fatigue and rutting, induced by traffic repetitions parameters for fatigue and rutting failures respectively. The same M-E pavement design principles can be used

Das, Animesh

182

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

  Computer Technologies and Information Sciences Websites

Summary: 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

Wang, Song

183

PAVEMENT CRACK DETECTION BASED ON SALIENCY AND STATISTICAL FEATURES Zhenmin Tang

  Computer Technologies and Information Sciences Websites

Summary: 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

Zhou, Jun

184

of Transportation Rigid Pavement Design and Analysis Web-Based Training Site

  Energy Storage, Conversion and Utilization Websites

Summary: Texas Department of Transportation Rigid Pavement Design and Analysis Web-Based Training Site Highway Administration Texas Department of Transportation, 2004 Rigid Pavement Design and Analysis Web the training programs, you'll need only: · A recent version of either the MS Internet Explorer or Netscape web

Texas at Austin, University of

185

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

  Environmental Management and Restoration Websites

Summary: Administration. 16. ABSTRACT This study investigated the influence of several factors on the adhesive bondEVALUATION 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


186

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

Summary: in the projected pavement condition. 5) Bayesian Models: Bayesian models are developed by combining the observed data and experience using Bayesian statistical approach. Bayesian models are initially based on subjective data and then modified as the actual data...

Deshmukh, Maithilee Mukund.
2010-07-14

187

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

Summary: Cost effective maintenance of pavement sections requires timely preventive maintenance and planned rehabilitation treatments. Knowledge of the increase in condition due to application of treatment and the loss of condition ...

Deshmukh, Maithilee Mukund.
2010-07-14

188

Using the Multi-Depth Deflectometer to study pavement response

  Texas A&M University - TxSpace

Summary: Surface modulus versus FWD load level 8ase modulus versus FWO load level Subgrade modulus versus FWD load level 82 83 86 87 89 90 92 101 103 104 106 107 109 112 113 126 138 139 140 xv FIGURE Page 60 Subgrade modulus versus stress... GILT NGV IIAN SIAT NIL T NON 101 ~ PATE OP NEASUGEO OEPLECTION 1000 Figure 23. Comparison of measured and calculated surface deflections (40) 44 bottom of an asphalt pavement is justified, provided that the moduli values used is corrected...

Yazdani, Jamshed Iqbal
1989-01-01

189

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

  Texas A&M University - TxSpace

Summary: Liquid Sulfur Page v111 ix 33 33 35 IV Symptoms of Poisoning . First Aid SULFUR IN THE PAVING INDUSTRY General Sand-Asphalt-Sulfur Pavements (SAS) ', , Sulfur-Extended Asphalt Pavements (SEA) Sulfur Concrete EVALUATION OF RISKS AND SAFETY... for Liquid Sulfur 428 35 values for a Sulfur-Asphalt-Sand (SAS) pavement system and asphalt -4 concrete of 11. 2 and 10. 7 (cal x 10 /cm-sec-C), respectively (27). Hazards Associated With Handlin Li uid Sulfur As mentioned earlier, liquid sulfur...

Jacobs, Carolyn Yuriko
1980-01-01

190

Finite Element Investigation of the Deterioration of Doweled Rigid Pavements

  CERN Preprints

Summary: 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...

Ghauch, Ziad G
2011-01-01

191

Finite Element Investigation of the Deterioration of Doweled Rigid Pavements

  Physics (arXiv)

Summary: 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.

Ziad G. Ghauch
2013-06-23

192

POINT-BASED COLOR BLEEDING WITH VOLUMES Presented to

  Computer Technologies and Information Sciences Websites

Summary: 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

Wood, Zoë J.

193

Biomedical companies catch and bleed horseshoe crabs for the pro-

  Environmental Sciences and Ecology Websites

Summary: 293 Biomedical companies catch and bleed horseshoe crabs for the pro- duction of Limulus amebocyte is a clotting agent, derived solely from horseshoe crab blood cells, which is used to detect the presence product. The biomedical industry harvest- ed approximately 260,000 horseshoe crabs in 1997 (HCTC1


194

FILTERING OF ARTIFACTS AND PAVEMENT SEGMENTATION FROM MOBILE Jorge Hernandez and Beatriz Marcotegui

  Computer Technologies and Information Sciences Websites

Summary: the contour between pavements and roads. The method uses a quasi-flat zone algorithm and a region adjacency in a growing number of geo-applications as Google Earth, Microsoft Virtual Earth, IGN - Geoportail 3D, etc

Cord, Aurélien

195

Using finite element structural analysis to study retroreflective raised pavement markers 

  Texas A&M University - TxSpace

Summary: the field performance of RRPMs more accurately. The tire-marker impact on rigid and flexible pavement will be investigated to identify the critical locations and magnitudes of stress inside markers during the impact. Various external factors, such as tire...

Tong, Jiaxin
2009-06-02

196

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

  Texas A&M University - TxSpace

Summary: for developing performance prediction models for pavements that received preservation treatments. In this approach, the model consists of two tightly-coupled components: the first component is responsible for predicting the performance (e.g., IRI...

Liu, Litao
2013-09-23

197

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

  University of California eScholarship Repository

Summary: Concrete Paving Association (ACPA) version of the American Association of State Highwayhighway network of more than 78,000 lane-kilometers (49,000 lane miles), 32 percent of which is rigid pavement (portland cement concrete),

Jones, David; Harvey, John T; Kohler, Erwin R.
2008-01-01

198

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

  University of California eScholarship Repository

Summary: 25,000 lane-km of concrete) state highway system was builtConcrete Average Daily Traffic Automated Work Zone Information System Construction Analysis for Pavement Rehabilitation Strategies California Highway

Lee, E. B.; Choi, K.; Harvey, John T
2005-01-01

199

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

  University of California eScholarship Repository

Summary: Concrete Pavement Performance,” Final Report, Contract No. DTFH61-C-00053, Federal HighwayHighway Administration (FHWA) research contract to predict early-age behavior of jointed concreteconcrete shoulders. 4. Establish maximum spacings in Highway

Harvey, John T; Monismith, Carl L.; Nokes, William; Coetzee, N. F
2006-01-01

200

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

  Texas A&M University - TxSpace

Summary: 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 ...

Masad, Sanaa Ahmad
2004-09-30

201

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

  Texas A&M University - TxSpace

Summary: A number of pavement structures experience deterioration due to high traffic volume and growing weights. Recently, the Texas Legislatures passed bills allowing trucks of gross vehicle weight (GVW) up to 556 kN routinely ...

Oh, Jeong-Ho
2004-11-15

202

Using finite element structural analysis to study retroreflective raised pavement markers

  Texas A&M University - TxSpace

Summary: 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...

Tong, Jiaxin
2009-06-02

203

Development of a Prediction Model for Skid Resistance of Asphalt Pavements 

  Texas A&M University - TxSpace

Summary: surface. Microtexture is influenced by aggregate surface characteristics and is required to disrupt the continuity of surface water film and attain frictional resistance between the tire and the pavement surface. Macrotexture is affected mostly by mixture...

Rezaei, Arash
2012-02-14

204

Development of a Prediction Model for Skid Resistance of Asphalt Pavements

  Texas A&M University - TxSpace

Summary: surface. Microtexture is influenced by aggregate surface characteristics and is required to disrupt the continuity of surface water film and attain frictional resistance between the tire and the pavement surface. Macrotexture is affected mostly by mixture...

Rezaei, Arash
2012-02-14

205

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

  MIT - DSpace

Summary: 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 ...

Rossick, Katelyn M
2014-01-01

206

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

  Texas A&M University - TxSpace

Summary: Concrete pavement systems have great capacity to provide long service lives; however, if the subbase layer is improperly designed or mismanaged, service life would be diminished significantly since the subbase layer performs many important roles...

Jung, Youn Su
2010-10-12

207

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

  Texas A&M University - TxSpace

Summary: 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...

Valls, Marc Edouard Josep
2000-01-01

208

An Asset Management Framework Based on Field Performance of Pavement Markings

  Texas A&M University - TxSpace

Summary: Performance-based asset management provides a strategic framework for managing transportation infrastructure to improve existing procedures for resource allocation. The importance of comprehensive management of pavement marking assets not only...

Madiri, Sam
2011-08-08

209

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

  Texas A&M University - TxSpace

Summary: Mature trees help to offset urban area problems caused by impervious pavement. Trees in paved areas remain unhealthy due to a poor root zone environment. The objective of this experiment was to test if soil under pervious concrete, with greater...

Viswanathan, Bhavana
2012-07-16

210

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

  Texas A&M University - TxSpace

Summary: 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, ...

Herrera, Edgar Efren
2001-01-01

211

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

  Texas A&M University - TxSpace

Summary: Mature trees help to offset urban area problems caused by impervious pavement. Trees in paved areas remain unhealthy due to a poor root zone environment. The objective of this experiment was to test if soil under pervious concrete, with greater...

Viswanathan, Bhavana
2012-07-16

212

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

  Texas A&M University - TxSpace

Summary: Pavement management is one of the primary responsibilities for departments of transportation and other municipalities across the country. Efficient and proper use of taxpayer dollars to preserve and improve the existing transportation system has...

Gurganus, Charles Felder
2011-08-08

213

Symptoms visible on affected trees include bleeding areas on their stems and sometimes

  Renewable Energy Websites

Summary: Symptoms visible on affected trees include bleeding areas on their stems and sometimes to induce bleeding stem cankers. Sequenceing of the gyrase B gene (gyrB) has indicated the presence information see: www.forestresearch.gov.uk/bleedingcanker Stem bleeding on horse chestnut in the UK was first


214

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

  Texas A&M University - TxSpace

Summary: for renewing badly deteriorated pavements. The Federal Highway Administration (FHWA) encourages low-maintenance, long-life concrete pavements whose service life is about 40 years (AISI 2012). Structural design, construction equipment, process technology... transversely and by reinforcing steel or wire mesh across cracks. Transverse joint distance ranges from 25 feet (7.6 meters) to 50 feet (15.2 meters) (WSDOT 2011). 20 About 9 states have JRCP design procedures, although JRCP is just a small portion...

Mao, Zhuting
2012-10-19

215

Measurements of pavement condition and estimation of maintenance and rehabilitation costs using statistical sampling techniques 

  Texas A&M University - TxSpace

Summary: MEASUREMENTS OF PAVEMENT CONDITION AND ESTIMATION OF MAINTENANCE AND REHABILITATION COSTS USING STATISTICAL SAMPLING TECHNIQUES A Thesis by CONNIE JILL TEMPLETON Submitted to the Graduate College of Texas ASM University in Partial... fulfillment o, the requirements for the degree of MASTER OF SCIENCE December 1983 Major Subject: Industrial Engineering MEASUREMENTS OF PAVEMENT CONDITION AND ESTIMATION OF MAINTENANCE AND REHABILITATION COSTS USING STATISTICAL SAMPLING TECHNIQUES A...

Templeton, Connie Jill
1983-01-01

216

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

  Texas A&M University - TxSpace

Summary: PAVEMENT PERFORMANCE PROPERTIES ASPHALT BINDER PROPERTIES ASPHALT CONCRETE PROPERTIES EVALUATION OF THE RELATIONSHIP BETWEEN PAVEMENT PERFORMANCE AND ASPHALT BINDER PROPERTIES 4 DISCUSSION OF RESULTS INTRODUCTION Page 1V V111 10 10 25 25 29... contributions ( l, 4, 5, 6, 7). Their studies have led to a better understanding of the causative factors influencing the asphalt curing and hardening processes. There has been a great deal of study and speculation as to how these processes could...

DuBose, Emmett Haygood
1980-01-01

217

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

  Texas A&M University - TxSpace

Summary: : Stationary - Ouality Control Laboratory Sulfur Storage Tank Storage of Preblended Sulfur-Asphalt Binders Mixing Units Surge Silos Stacks Mobile - Haul Trucks Paver Types of ma1ntenance operations and hot-mix recycling procedures have also been... Liquid Sulfur Page v111 ix 33 33 35 IV Symptoms of Poisoning . First Aid SULFUR IN THE PAVING INDUSTRY General Sand-Asphalt-Sulfur Pavements (SAS) ', , Sulfur-Extended Asphalt Pavements (SEA) Sulfur Concrete EVALUATION OF RISKS AND SAFETY...

Jacobs, Carolyn Yuriko
1980-01-01

218

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

  Texas A&M University - TxSpace

Summary: A UTILITY EVALUATION OF NONDESTRUCTIVE TESTING DEVICES USED ON ASPHALT CONCRETE PAVEMENTS A Thesis by SHELLEY MARIE STOFFELS Submitted to the Graduate College of Texas ARM University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE August 1986 Major Subject: Civil Engineering A UTILITY EVALUATION OF NONDESTRUCTIVE TESTING DEVICES USED ON ASPHALT CONCRETE PAVEMENTS A Thesis by SHELLEY MARIE STOFFELS Approved as to style and content by: Robe L. Lytt red...

Stoffels, Shelley Marie
1986-01-01

219

A study of certain elastic and plastic strains induced in flexible pavement systems by repetitive wheel loads

  Texas A&M University - TxSpace

Summary: . THEORETICAL CONSIDERATIONS Nodes of Failure of a Flexible Pavement Fatigue Failure of the Surface . Shear Failure of Base and Subgrade . Elasticity, Plasticity, and Compaction Evaluating Flexible Pavement Systems IV. THE RESEARCH PROGRAM 12 13 25 29... Vehicle Magnitude of Hheel Load and Tire Pressure Repetitive Testing The Testing Procedures 50 Effect of Area of Influence of Nheel Load on Data Validity Horisontal extent of pavement depression under load wheel 50 51 Effect of depressed area ou...

Meyer, Kirby Thomas
1959-01-01

220

Model studies of stresses in upper layers of pavements

  Texas A&M University - TxSpace

Summary: t ion o f SR -4 S tra in G ages on M eta l P la te s 72 7 .3 A pp l ica t ion o f S R -4 Strain G ages on P o r t ? land C em en t C on c r e t e 74 7 .4 A p p l ic a t ion o f S R -4 S tra in G ages on A spha lt ic C on c r e...MODEL STUDIES OF STRESSES IN U PPER LAYERS OF PAVEMENTS A D is s e r t a t io n B y BHUPAT IRAJU SUBBARAJU A p p r o v e d a s to sty le and con ten t by: Q ? . / 3 * Cha irm an o f C om m it t e e H ead o f D epa r tm en...

Subbaraju, Bhupatiraju
1955-01-01

221

No Chemical, Zero Bleed Cooling Tower Water Treatment Process

  Texas A&M University - TxSpace

Summary: NO CHEMICAL, ZERO BLEED COOLING TOWER WATER TREATMENT PROCESS ALDEN L. COKE, CWS IV, PRESIDENT, AQUA-FLO, INC., BALTIMORE, MARYLAND ABSTRACT This paper describes a process to treat cooling tower water by means of a fully automated... and chemical free mechanical water 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...

Coke, A. L.

222

Pooled Fund TPF-5(139) PCC Surface Characteristics: Tire-Pavement Noise Program Part 3 Innovative Solutions/Current Practices

  Engineering Websites

Summary: AND TEXTURING CONCRETE PAVEMENT SURFACES : Robert Otto Rasmussen Sabrina I. Garber Gary J. Fick Theodore R......................................................................8 3.3 Nominal Surface Texture............................................................................ 10 4 Controlling Concrete Pavement Surface Texture......................11 4.1 Concrete Materials


223

INTRODUCTION The Federal Highway Administration's 1995-1997 National Pavement Design Review found that nearly 80 percent of

  Biology and Medicine Websites

Summary: INTRODUCTION The Federal Highway Administration's 1995-1997 National Pavement Design Review found that nearly 80 percent of states use the 1972, 1986, or 1993 AASHTO Design Guides.These design guides of the limitations of these older AASHTO Design Guides, the Joint Task Force on Pavements (JTFP) initiated an effort

Stephens, Jacqueline

224

1 INTRODUCTION Flexural fatigue is one of the main failure modes in asphalt mixtures and flexible pavement

  Physics Websites

Summary: ). Physically speaking, micro crackings originate at the bottom of an asphalt concrete layer caused for pavement design necessary to dimension the pavement structure (layer thickness). European standards (EN into two parts: the first one is the occurrence of tensile stress/strain in the base layer; the second one

Paris-Sud XI, Université de

225

International Conference on Concrete Pavements Colorado Springs, Colorado, USA August 14-18, 2005 Vandenbossche and Snyder

  Engineering Websites

Summary: to temperature gradients. The study entailed collecting surface profile measurements for a range of pavement Hall, Pittsburgh, PA, 15261, jmv@engr.pitt.edu 2 Mark B. Snyder, Consultant, 6305 Oyster Bay Ct gradients. The study entailed collecting surface profile measurements for a range of pavement designs under

Vandenbossche, Julie M.

226

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

  Engineering Websites

Summary: Strategic Research Plan #12;· Performance-Based Concrete Pavement Mix Design System · Performance-Based Design Guide for New and Rehabilitated Concrete Pavements · High-Speed Nondestructive Testing and Intelligent Construction Systems · Optimized Surface Characteristics for Safe, Quiet, and Smooth Concrete


227

Mechanical analysis of a mixed mode debonding test for "composite" pavements A. Chabot*, M. Hun, F. Hammoum

  Physics Websites

Summary: determined at the specimen edge lie within the range of values found in the literature for cement concrete material as well as a cement concrete layer. During the pavement service life however, due of "composite" pavements made both with bituminous and cement concrete layers, vertical discontinuities

Paris-Sud XI, Université de

228

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

Summary: capacity in pavements (Haas et al. 2001). Skid resistance, a measure of pavement safety, is another factor of high importance although in terms of road user and manager satisfaction, as long as surface friction is above some defined minimum threshold............................................................................. 39 3.5 Processing of User-Defined Skid, Structural, and Visual Assessment Ratings ............................................................................................................. 40 viii 3.6 Forced Projects...

Narciso, Paul John Ross
2013-07-22

229

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

  CERN Preprints

Summary: 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.

Chabot, Armelle; Deloffre, Lydie; Duhamel, Denis
2010-01-01

230

In-place engineering properties of recycled and stabilized pavement layers 

  Texas A&M University - TxSpace

Summary: Longitudinal Crack along the Edge of the Pavement Structure . . . . . . 90 17 Huge Trees Adjacent to the Pavement 91 18 Correlation of DCP Index v/s. Subgrade Moduli (CH soils) . . 19 Correlation of DCP Index v/s. Subgrade Moduli (CL soils) . . . . . . 97..., FWD Analysis 18 FM 977, Data 48 49 xn TABLE Page 19 FM 977, FWD Analysis 20 FM27, Data . . 50 51 21 FM 27, FWD Analysis 52 22 FM 3411, Data 53 23 FM 3411, FWD Analysis 24 FM ill, Data . . . . , . . . . . . . . . . 25 FM 111, FWD Analysis...

Syed, Imran Majidali
1997-01-01

231

Ancient documents bleed-through evaluation and its application for predicting OCR error rates

  Physics Websites

Summary: ´eration, Talence, France; ABSTRACT This article presents a way to evaluate the bleed-through defect on very old to predict the feasibility of different post-scan tasks. In this article we choose to illustrate our measures. Keywords: Document Image analysis, Quality, bleed through quantification, Ocr Prediction 1. INTRODUCTION

Paris-Sud XI, Université de

232

A novel classification method for prediction of rectal bleeding in prostate cancer radiotherapy

  Physics Websites

Summary: 1 A novel classification method for prediction of rectal bleeding in prostate cancer radiotherapy/side-effects relationships in prostate cancer radiotherapy is crucial to define appropriate individual's constraints to identify patients at risk of presenting rectal bleeding from a population treated for prostate cancer

Paris-Sud XI, Université de

233

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

  Computer Technologies and Information Sciences Websites

Summary: @cs.duke.edu Abstract Many types of degradation can render ancient manuscripts very hard to read. In bleed improves over existing methods. 1. Introduction Ancient manuscripts held in libraries and academic cen. In this paper, we propose hysteresis thresholding as an effective method of bleed-through re- moval in ancient

Tomasi, Carlo

234

Feature extraction and classification for rectal bleeding in prostate cancer radiotherapy: A PCA based method

  Physics Websites

Summary: Feature extraction and classification for rectal bleeding in prostate cancer radiotherapy: A PCA on Principal Component Analysis (PCA) [3] to predict rectal bleeding following high-dose prostate cancer was applied. This selection of features provides higher statistical performances for classifying the rectal

Paris-Sud XI, Université de

235

DETERMINATION OF ENERGY RELEASE RATE FOR A MIXED-MODE DEBONDING TEST FOR "COMPOSITE" PAVEMENTS

  Computer Technologies and Information Sciences Websites

Summary: in "composite" pavement consisting of superimposed layers of processed materials (cement concrete and bituminous materials). The energy release rate is calculated by the Multi-particle Modelling of Multi-layered Material with 5 kinematic fields per layer (M4-5n). The classical virtual crack closure technique helps

Boyer, Edmond

236

A Robust Bayesian Fusion Algorithm for Lane and Pavement boundary detection

  Engineering Websites

Summary: units and are in the same order of magnitude, the estimation problem is much better conditioned than and pavement boundaries is primary and essential for the control and maneuver of the vehicle. It will provide of Michigan, Dearborn, MI 48128. E-mail: laksh- man@umich.edu . Alfred O. Hero is with the Department

Hero, Alfred O.

237

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

  Environmental Management and Restoration Websites

Summary: index (PI) clays (soils which expand and shrink due to moisture change) in Texas has shown excessive. INTRODUCTION The volumetric changes occurring in high PI clays have caused early cracking of flexible pavements with and without geosynthetics that have shown poor and good performance with repeated traffic loading over a given

Zornberg, Jorge G.

238

Numerical Investigation of Design Strategies to Achieve Long-Life Pavements

  Physics (arXiv)

Summary: 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.

Grace G. Abou-Jaoude; Ziad G. Ghauch
2012-03-30

239

Optimization of Self-Consolidating Concrete for Slip-form pavement

  Engineering Websites

Summary: 1 Optimization of Self-Consolidating Concrete for Slip-form pavement A thesis submitted in partial The concrete currently used in the slip-form paving process is a low slump concrete that requires both internal enough for machine placement, compactable with a minimum of energy and hold its shape for the slip-form


240

DETERIORATION FORECASTING IN FLEXIBLE PAVEMENTS DUE TO FLOODS AND SNOW STORMS

  Computer Technologies and Information Sciences Websites

Summary: , insufficient funding often limits timely repairs and rehabilitation of the pavement. As needs continue the quality of many PMS components such as determining the number of years when rehabilitation will be needed and rehabilitation (M&R) alternatives [4]. A solid deterioration model will not only help road controlling

Boyer, Edmond

241

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

  Engineering Websites

Summary: Unintended Impacts of Increased Truck Loads on Pavement Supply-Chain Emissions Nakul Sathaye, Arpad load consolidation, load factors and increasing maximum truck weight limits have been suggested to mitigate congestion and environmental impacts. However, trucks cause most of the damage incurred

California at Berkeley, University of

242

Evaluation of tire pressure, tire construction, axle configuration, and axle load on flexible pavement performance

  Texas A&M University - TxSpace

Summary: loading among axles, and high tire pressures. The tire is represented as a uniformly loaded circular area with contact pressure assumed as 9OX, of inflation pressure. A modified Chevron N-layer model was used to calculate pavement stresses and strains...

Jamy, Ahmad Najeeb
1991-01-01

243

Evaluation of infiltration in layered pavements using surface GPR reflection techniques

  Geosciences Websites

Summary: -coupled ground penetrating radar (GPR) techniques were used to non-destructively monitor the volumetric water layers. D 2004 Elsevier B.V. All rights reserved. Keywords: Ground penetrating radar; Water content and guiding pavement maintenance, is greatly influenced by soil water content. In this study, ground

Hubbard, Susan

244

Although most Minnesota airports do not have much concrete pavement, the con-

  Energy Storage, Conversion and Utilization Websites

Summary: Although most Minnesota airports do not have much concrete pavement, the con- crete they do have constructed of concrete are parking lots and sidewalks, for which the concrete is typically 4 to 6 inches thick. However, several general avi- ation airports do have concrete aprons and runways, which

Minnesota, University of

245

IMPROVEMENT REVISIONS TO SPECIFICATIONS TO EXTEND THE LIFE OF CONCRETE PAVEMENTS

  Engineering Websites

Summary: chart, 0.45 power chart & chart of combined aggregate retained w/ mix design · Use of Recycled ConcreteIMPROVEMENT REVISIONS TO SPECIFICATIONS TO EXTEND THE LIFE OF CONCRETE PAVEMENTS SHANNON GOLDEN, P.E. ­ STATE CONCRETE ENGINEER The Major Differences Between 2008 & 2012 ALDOT Specifications for PCCP · Coarse


246

Environmental Assessment of Pavement Alternatives: Decision-Making in Light of

  Environmental Sciences and Ecology Websites

Summary: -kilometers ­ 1/3 concrete pavement, urban high-volume freeways, 30-50 years old ­ 2/3 asphalt surfaced: composite maintenance and rehabilitation · 90 % of work is maintenance, preservation, rehabilitation, recycling ­ Materials price fluctuations · Intense competition from two competing industries (asphalt and concrete

Handy, Susan L.

247

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

  Engineering Websites

Summary: are expensive. 6. Recycled PCC pavement is frequently used as subbase or used in commercial concrete. NYSDOT traffic can increase the use of high early strength concretes. HES concretes are more expensive, use more during rush hours. They are expensive, often made with HES concrete, and do not have a long service


248

Influences of eolian and pedogenic processes on the origin and evolution of desert pavements

  Engineering Websites

Summary: Influences of eolian and pedogenic processes on the origin and evolution of desert pavements Leslie Mexico, Atbuquerque, New Mexico 871 31 ABSTRACT WeJt-developed desert plvements Ire present lbove eolian deposits that mantle noww 01 the CiItUl volcanic rleld, localed in lhe Mojave Desert, California. Soil

Ahmad, Sajjad

249

Surface control of desert pavement pedologic process and landscape function, Cima Volcanic field,

  Engineering Websites

Summary: Surface control of desert pavement pedologic process and landscape function, Cima Volcanic field, Mojave Desert, California Y.A. Wooda,*, R.C. Grahama , S.G. Wellsb a Soil and Water Sciences Program, Department of Environmental Sciences, University of California, Riverside, CA 92521-0424, USA b Desert

Ahmad, Sajjad

250

AUTOMATIC DETECTION AND CLASSIFICATION OF DEFECT ON ROAD PAVEMENT USING ANISOTROPY MEASURE

  Physics Websites

Summary: -sy.nguyen@etu.univ-orleans.fr ABSTRACT Existing systems for automated pavement defect detection can only identify cracking type defects. In this paper, we in- troduce a method which can detect not only cracks as small as 1mm in width, but also two into four classes: defect-free, crack, joint and bridged. Experimental results were performed on real road

Paris-Sud XI, Université de

251

International Journal of Road Materials and Pavement Design. V.5., 4, pp. 435-452, 2004.

  Engineering Websites

Summary: International Journal of Road Materials and Pavement Design. V.5., 4, pp. 435-452, 2004. 1 Cracking performed to evaluate the intermediate- and low-temperature fatigue cracking parameters of typical ARM to obtain a constant rate of crack mouth opening displacement. Such an innovative approach allows us

Mobasher, Barzin

252

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

  Energy Storage, Conversion and Utilization Websites

Summary: management practice (BMPs). Many researchers including the PI of this proposed project performed researchProject Information Form Project Title White Paper on The application of permeable pavement (by each agency or organization) Cal Trans Total Project Cost $29,007 Agency ID or Contract Number

California at Davis, University of

253

Good Cycling Code Do not cycle on the pavement unless it is

  Geosciences Websites

Summary: Good Cycling Code Do not cycle on the pavement unless it is specifically designated as a shared: security matters Cycling: sharing your route Cycling: with children Cycling: clothes & accessories For more on the preparation of these leaflets and Garlands Cycles, Bristol. Designed and produced by Visual Technology

Bristol, University of

254

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

  Engineering Websites

Summary: -- 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


255

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

  Engineering Websites

Summary: , Pavement, and Construction Federal Highway Administration #12;Ground Penetrating Radar #12;The APE #12;SF. Step-Frequency GPR #12;1 GHz GSSI Comparison of SG-GPR and GSSI results APE System (Single Antenna Active Antenna Pairs = 21 T1 T11 R1 R11 Common Offset Protocol #12;APE standard testing configuration


256

Evaluation of tire pressure, tire construction, axle configuration, and axle load on flexible pavement performance 

  Texas A&M University - TxSpace

Summary: loading among axles, and high tire pressures. The tire is represented as a uniformly loaded circular area with contact pressure assumed as 9OX, of inflation pressure. A modified Chevron N-layer model was used to calculate pavement stresses and strains...

Jamy, Ahmad Najeeb
1991-01-01

257

Evaluation of the Structure-induced Rolling Resistance (SRR) for pavements including

  Physics Websites

Summary: load; viscoelasticity; layered medium; asphalt pavement 1. Introduction Depending on the traffic volume, as part of the factors that impact the rolling resistance, might lead to substantially higher energy by moving loads (i.e. tires of the vehicle). The structure-induced power dissipation is shown

Paris-Sud XI, Université de

258

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

  Texas A&M University - TxSpace

Summary: performance with respect to both rutting and fatigue cracking. Charts to evaluate the service life of the existing pavement subjected to OTTs are established in terms of the unit service life consumed due to the rutting and fatigue cracking with the various...

Oh, Jeong-Ho
2004-11-15

259

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

  Texas A&M University - TxSpace

Summary: of the difference in gradient vectors between particles ........... 42 4.5 Cluster classification chart for different aggregate properties ................... 45 5.1 SPSS? linear regression interface screen... 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...

McGahan, Jeremy
2006-04-12

260

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

  Texas A&M University - TxSpace

Summary: ............................................................................................... 23 Aggregate Tests and Procedures ............................................................ 24 viii CHAPTER Page Aggregate Consensus Properties................................................. 25 Crushed Face Count... and Musgrove 1981). Many different types of forces and stresses act upon a pavement to affect its durability and ability to retain adequate skid resistance. Slow grinding and abrasion by tires, fast grinding by studded tires, crushing and breakage...

Luce, Anthony David
2009-05-15

261

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

  Texas A&M University - TxSpace

Summary: tree considers ride score, distress score, and traffic volume. After fitting the probability distributions of pavement condition indicators and unit cost, the impact of uncertainty in them on funding needs estimate was investigated using Monte Carlo...

Li, Jing
2014-05-23

262

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

  Texas A&M University - TxSpace

Summary: 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...

Chang Albitres, Carlos Martin
2009-05-15

263

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

  Texas A&M University - TxSpace

Summary: 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 in all the applications...

Deshpande, Vighnesh Prakash
2009-05-15

264

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

  Texas A&M University - TxSpace

Summary: 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...

Chang Albitres, Carlos Martin
2009-05-15

265

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

  MIT - DSpace

Summary: 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 ...

Shukla, Anita, Ph. D. Massachusetts Institute of Technology
2011-01-01

266

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

  Texas A&M University - TxSpace

Summary: , varying climatic conditions, and aging pavements. As a result, remedial activities such as maintenance, rehabilitation, or reconstruction (MRR) have become more and more widespread and costly. The total investment in improving the United States highway... deteriorated in order to select the appropriate remedy. Too often, engineers do not know why a treatment strategy has proved successful, or are unable to define its limitations in terms of load effects or climatic conditions. A better understanding...

Valls, Marc Edouard Josep
2000-01-01

267

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

  Texas A&M University - TxSpace

Summary: ........................................................... 88 Figure 33. Comparison of M&R unit cost probability distributions ................................ 89 Figure 34. Alligator cracking with light traffic: (A) distress density, (B) utility value ... 90 Figure 35. Utility values of each distress... al. 2011). According to the Pavement Management Information System (PMIS) Technical Manual maintenance treatments are selected based on average daily traffic (ADT), ride score (RS), deep rutting, shallow rutting, alligator cracking, failures, block...

Menendez Acurio, Jose Rafael
2014-07-30

268

Effects of pavement markings on vehicle paths in a dual left turn

  Texas A&M University - TxSpace

Summary: of Intersections with Dual Left Turns . . . . . . 2 2 Problems Associated with Dual Left Turns 3 Typical Pavement Markings Used at an Intersection With a Dual Left Turn 4 Study Sites: Dual Left Turn Intersections in Houston 12 5 Schematic of Gessner... or guideline be developed for the type, width and patterns of longitudinal markings for multiple turn lanes. 5. The effectiveness of the double left-turn movement as a collision reduction technique be studied. " None of the previous researchers have studied...

Simmons, Kathryn Fitzpatrick
1984-01-01

269

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

  Texas A&M University - TxSpace

Summary: ?s Discriminant Analysis HC Hydrostatic Compression ICAR International Center for Aggregate Research LDA Linear Discriminant Analysis KNN k-Nearest Neighbor MEPDG Mechanistic Empirical Pavement Design Guide NCHRP National Cooperative Highway... of Anisotropy Based on the Features of the Aggregate Database???????????? 5 Task 7: Development and Sensitivity Analysis of the Artificial Neural Network (ANN) Based Anisotropy Model??????. 6 Task 8: Application of Pattern Recognition Techniques...

Salehi Ashtiani, Reza
2010-10-12

270

Development and implementation of an enhanced procedure for estimating pavement rehabilitation and maintenance expenditures

  Texas A&M University - TxSpace

Summary: DEVELOPMENT AND IMPLEMENTATION OF AN ENHANCED PROCEDURE FOR ESTIMATING PAVEMENT REHABILITATION AND MAINTENANCE EXPENDITURES A Thesis by JUAN CARLOS GARCIA-DIAZ Submitted to the Graduate College of Texas ARM University in partial fulfillment... GARCIA-DIAZ Approved ss to style and content by: Boma T. Afiesimama (Chairman of Committee) Robert P. Besls (Member) Daniel Colunga (Member) G. ble Bennett ad of Department) August 1987 ABSTRACT Development and Implementation of an Enhanced...

Garcia-Diaz, Juan Carlos
1987-01-01

271

A rule-based vision system for distress detection on concrete highway pavement 

  Texas A&M University - TxSpace

Summary: " (program~tatus elimination) ?rem (- (elimination3evel non-crack) ?remi (- (oil count?num) (retract ?rem ?remi) (if () ?num I) then (printout t "Oil Stain detected!" crlf) (printout t "Oil Stain removed!" crlf) (removeoi1) ) The rules described...A RULE-BASED VISION SYSTEM FOR DISTRESS DETECTION ON CONCRETE HIGHWAY PAVEMENT A Thesis by YUEN SANG (STEPHEN) TSAO Submitted to the Office of Graduate Studies of Texas ASM University in partial fulfillment of the requirements for the degree...

Tsao, Yuen Sang (Stephen)
1992-01-01

272

Numerical Investigation of Design Strategies to Achieve Long-Life Pavements

  CERN Preprints

Summary: 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...

Ghauch, Ziad G
2011-01-01

273

7th International Conference on Concrete Pavements Orlando, Florida, USA September 9-13, 2001 THE MEASURED RESPONSE OF ULTRA-THIN AND THIN WHITETOPPING TO

  Engineering Websites

Summary: THE MEASURED RESPONSE OF ULTRA-THIN AND THIN WHITETOPPING TO ENVIRONMENTAL LOADS Julie M. Vandenbossche by measuring the responses of the pavements to various environmental loadings. A 345-mm asphalt concrete pavement on I-94, at the Minnesota Road Research (Mn/ROAD) facility, was whitetopped with a fiber

Vandenbossche, Julie M.

274

Mairepav 6 : the Sixth International Conference on maintenance and rehabilitation of pavements and technological control, At Torino, Italy, July 8-10, 2009

  Physics Websites

Summary: Mairepav 6 : the Sixth International Conference on maintenance and rehabilitation of pavements., 2008). This research has finally led to create a software tool for pavement construction and should be the subject of further researches. hal-00933600,version1-20Jan2014 #12;Mairepav 6 : the Sixth

Paris-Sud XI, Université de

275

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

  Mathematics Websites

Summary: Road Materials and Pavement Design. Volume 9 ­ No. 1/2008, pages 31 to 57 Assessment of Existing[UniversityofIllinoisatUrbana-Champaign]at16:0417June2014 #12;32 Road Materials and Pavement Design. Volume 9 ­ No. 1/2008 1. Introduction

Paulino, Glaucio H.

276

A mechanistic model for the prediction of stresses, strains, and displacements in continuously reinforced concrete pavements 

  Texas A&M University - TxSpace

Summary: in an actual pavement, since the conn etc and the steel have to be fully bonded at the midpoint of the slab. In addition, the stress distribut''ons in both the steel and the concrete are governed, in part, by the bond stress distribution between them... long, with the reinforcing bar covered by several inches of concrete. For this reason, their results were preferred for the formulation of the general bond stress-slip relationship. Both Wahla and Nilson recommended the use of two-part linear...

Palmer, Richard Paul
1988-01-01

277

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

  Texas A&M University - TxSpace

Summary: of Theor ie s of R ig id Pavement Design 2. A ssumptions Relative to Soil Behavior 3. Indications of Lack of Continuous Support 4. Bas ic O b j e c t i v e s ........................................... B. Se lection of A Site fo r S t u d y... s t s .................................................. 89 IV. PLASTIC AND ELASTIC STRAINS EXPERIENCED BY THE S O I L .....................................................................................................102 A . Magnitude o f the E lastic and P la s t ic Strains . . . . 1 0 2 B...

Khuri, Fuad I.
1954-01-01

278

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

  Texas A&M University - TxSpace

Summary: at the End of the Analysis Period for Different Scenarios. . . 64 FIGURE Page 19 Percent of the Network in Very Poor Condition at the End of the Analysis Period for Different Scenarios. . 64 20 AUAC/PCI versus Remaining Life at the End of the Analysis... Period for Different Scenarios. . . 66 21 AUAC/RL versus PCI at the End of the Analysis Period for Different Scenarios . . 66 Normalized Scenario Cost Effectiveness Ratio (NSCER) for Different Scenarios . 67 23 A Typical Definition of Pavement...

Chang Albitres, Carlos Martin
1999-01-01

279

Measurements of pavement condition and estimation of maintenance and rehabilitation costs using statistical sampling techniques

  Texas A&M University - TxSpace

Summary: , 0. 0858) (0. 0238, 0. 1016) 22 Table 4. Computed confidence intervals on p, District 8, 11, 15, Sys- tem SH. Pavement Score Division 505 80' os Level of Confidence That p Lies Within Score Division 0-5 6-10 11-15 16-20 21-25 26-30 31..., District 8, 11, 15, System FM. 21 Table 4. Computed confidence intervals on p, District 8, 11, 15, System SH. 22 Table 5. Computed confidence intervals on p, District 8, 11, 15, System US. 23 Table 6. Estimated values of the parameters a and b...

Templeton, Connie Jill
1983-01-01

280

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

  Engineering Websites

Summary: products obtained through fractional distillation of crude oil or petroleum. Due to its organic nature in the amount of aging across the depth of pavement. The Strategic Highway Research Program (SHRP) Project A-368, Switzerland doi:10.4028/www.scientific.net/MSF.631-632.53 All rights reserved. No part of contents

Paulino, Glaucio H.

281

Dynamic Hydraulic Conductivity (Permeability) of Asphalt Pavements M. Emin Kutay1, Ahmet H. Aydilek2 and Tom Harman3

  Engineering Websites

Summary: pore structure are often dynamic due to the repeated tire loading. Therefore, a dynamic permeability that the dynamic permeability of an asphalt pore structure collapse on a single curve for a given frequency loading in the field, the external pressures on a saturated pavement pore structure are often dynamic

Aydilek, Ahmet

282

SOURCE: UNIVERSITY OF CALIFORNIA PAVEMENT RESEARCH CENTER FIGURE 1 Moisture-induced stripping in asphalt treated base layer

  Engineering Websites

Summary: Research Center Using innovative research and sound engineering principles to improve pavement structures contract, whose mission is to apply innovative research and sound engineering principles to improve the surface of the asphalt mix from precipitation by gravity or hydraulic pressure from tire action, from

California at Berkeley, University of

283

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

  Renewable Energy Websites

Summary: Report on the National Survey to Assess the Presence of Bleeding Canker of Horse Chestnut Trees trees from 128 rural sites and 1244 trees in 112 urban sites were inspected. All regions had some symptomatic trees and overall, 44% of the trees inspected in the rural environment and 55% of the urban trees


284

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

  CERN Preprints

Summary: 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...

Al-Rahayfeh, Amer A; 10.5121/ijma.2010.2201
2010-01-01

285

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

  Computer Technologies and Information Sciences Websites

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

Wolf, Christian

286

A study of certain elastic and plastic strains induced in flexible pavement systems by repetitive wheel loads 

  Texas A&M University - TxSpace

Summary: Vehicle Magnitude of Hheel Load and Tire Pressure Repetitive Testing The Testing Procedures 50 Effect of Area of Influence of Nheel Load on Data Validity Horisontal extent of pavement depression under load wheel 50 51 Effect of depressed area ou... test does not completely describe the performance of a material under repeated loading, the type that a high- way experiences. The effect of progressive plastic deformation under repeated loads less than the peak load has been accounted for only...

Meyer, Kirby Thomas
1959-01-01

287

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

  Texas A&M University - TxSpace

Summary: 3.2 Modeling the Pavement Fragilities .................................................... 40 3.2.1 Parametric Regression Modeling ........................................ 41 3.2.2 Maximum Likelihood Estimation (MLE) ........................... 42... functions. Table 1 lists all the basic variables x that enter into the models described above, along with the values of the parameters f ? . Based on physical and geometrical constrains, all the variables are assumed to follow a lognormal distribution...

Deshpande, Vighnesh Prakash
2009-05-15

288

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

  University of Cambridge - Dspace

Summary: .BJAST.2015.254 ISSN: 2231-0843 SCIENCEDOMAIN international www.sciencedomain.org Comparative Analysis of Cement and Lateralite on the Engineering Properties of Niger Delta Soils for Pavement Construction F. M. Alayaki1*, A. Al... -Tabbaa1, E. A. Meshida2 and M. J. Ayotamuno3 1Department of Engineering, CB2 1PZ, University of Cambridge, United Kingdom. 2 Department of Civil Engineering, Afe Babalola University, Ado Ekiti, Nigeria. 3 Faculty of Engineering, Rivers State...

Alayaki, F. M.; Al-Tabbaa, A.; Meshida, E. A.; Ayotamuno, M. J.
2015-05-13

289

Accurate Alignment of Double-sided Manuscripts for Bleed-through Removal Jie Wang, Michael S. Brown and Chew Lim Tan

  Computer Technologies and Information Sciences Websites

Summary: this problem in wavelet frequency do- mains, where directional 2-D wavelet transforms were used to separateAccurate Alignment of Double-sided Manuscripts for Bleed-through Removal Jie Wang, Michael S. Brown}@comp.nus.edu.sg Abstract Double-sided manuscripts are often degraded by bleed- through interference. Such degradation must

Tan, Chew Lim

290

Phytophthora kernoviae sp. nov., an invasive pathogen causing bleeding stem lesions on forest trees and foliar necrosis of

  Renewable Energy Websites

Summary: Phytophthora kernoviae sp. nov., an invasive pathogen causing bleeding stem lesions on forest trees DENMAN1 and Joan ROSE1 1 Forest Research Agency, Farnham, Surrey GU10 4LH, UK. 2 Central Science concern about the threat posed by invasive Phyto- phthora pathogens to European forests (Brasier 1999


291

Road Materials and Pavements Design. Volume X No X/2009, pages 1 to n Viscoroute 2.0: a tool for the simulation of

  Physics Websites

Summary: for the simulation of moving load effects on asphalt pavement Chabot* A. -- Chupin* O. -- Deloffre* L. -- Duhamel** D by strains measured on full scale experimental aircraft structures, traffic of slow-moving multiple loads-viscoelastic behaviour of asphalt layers is accounted by the Huet-Sayegh rheological law and loads are assumed to move

Paris-Sud XI, Université de

292

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

Summary: ambient light conditions, simple painted lines would be adequate, reflecting and scattering light in every the highway. In the case of simple painted lines, this light would then typically reflect off the pavement marking paint, in the direction of travel, not back to the vehicle where it can be seen by the operator

Maerz, Norbert H.

293

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

  Engineering Websites

Summary: to its flexible mastic matrix and particulate composite morphology. Significant energy is required to initiate and propagate a crack through asphalt concrete, as the asphalt mastic is tough, strain tolerant study by Islam and Buttlar (2012), pavements allowed to reach a rough conditio

Paulino, Glaucio H.

294

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

  Fossil Fuels Websites

Summary: because of the high computational cost of dynamic multilayered solutions. It has long been known backcalculation of pavement moduli has yet to witness its widespread use owing in part to a high computational backcalculation analyses to perform well even when dynamic effects are significant. The technique is based

Guzina, Bojan

295

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

  Engineering Websites

Summary: Washington State Report Questions on NDT Testing 1. What NDT testing methods for concrete materials, concrete pavements, and overlays are you trying? NDT test methods used by WSDOT include the MIT Scan, MIT the reliability of NDT testing methods compare to traditional testing methods? MIT Scan measurements were


296

The value of a Pavement Management System (PMS) and the planning and cost-benefit tools it provides for decision making have long been recognized

  Materials Science Websites

Summary: percent of the state's traffic. Before the job was over, the CAIT team had surveyed and gathered dataThe value of a Pavement Management System (PMS) and the planning and cost-benefit tools it provides the potential of a PMS, data revealing the history and condition of each mile of road is needed. Consider

Neimark, Alexander V.

297

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

Summary: simulation of bleeding is a challenging problem because of the complexities of the circulatory system and techniques and to close this gap. However, realistic simulation of tissue cutting and bleeding, which

Basdogan, Cagatay

298

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

Summary: the construction of 32 test sections in the pavement of FM2 (Bryan District), reconstructed over expansive clays. The test sections included multiple reinforcement types and lime stabilization schemes. Project Summary control purposes, but should be complemented with performance properties that are relevant for design

Zornberg, Jorge G.

299

Pavement Recycling Machine 

  Texas A&M University - TxSpace

Summary: Center The Chemical Industry Electronics Wire & Cable Coatings Automotive Building & Construction Agriculture Turning Feedstocks into Essential Products Salt Gas Oil Biomass Coal Recycle Energy Designing for Sustainability Houston Dow... Plan (TIP) required immediate energy savings ? Employee engagement throughout process ? Rewarded employees with Energy Star compliant flat panel monitors for recycling ? Moved using plastic crates (not cardboard boxes) Designing for Sustainability...

Raiford Stripling Associates, Inc.; Stripling, Raiford L.
2011-08-29

300

Recycling of pavement materials

  Texas A&M University - TxSpace

Summary: District of Columbia California Wisconsin Texas Asphalt Concrete Massachusetts California Michigan Iowa Texas Indiana Nevada Utah Texas EXPERIMENTAL PROJECTS Portland Cement Concrete Page 10 12 12 17 20 22 24 25 Asphalt Concrete... Aggregate Used Por Unstabilized Base Stabilized Base References No. No. Stabilized Base Portland Ceneot Concrete Asphalt Concrete Wisconsin Dist. 8 (texas U. S. Hi hwa 8 Michzgsn District of Columbia Califoroia bisconsin California Dist. 1...

O'Neal, Randy Jim
1976-01-01

301

4/28/2010 1Porous Pavements Porous Pavements

  Energy Storage, Conversion and Utilization Websites

Summary: % of our land cover, but 70% of our stormwater runoff volume and Phosphorus loading ·! Impervious surfaces Phosphorus ·! Reduces infrastructure needs and land costs ·! Provides improved traction ·! Winter performance

Minnesota, University of

302

FRP Dowels for Concrete Pavements

  Engineering Websites

Summary: materials within the slab/joint systems were epoxy-coated steel, as well as two products of Glass FRP and Geological Engineering University ofManitoba Winnipeg, Manitoba ©May 12, 1999 #12;Abstract Steel dowels to the expansion of steel during the corrosion process. A corrosion-free alternative, such as Fiber Reinforced


303

National Concrete Pavement Technology Center

  Engineering Websites

Summary: ). #12;US 131 Unbonded Overlay Overlay: ·Unbonded overlay -1998 construction, no patching done. ·7. pass ·Traffic: 50,000 VPD with 10 to 15 % trucks. Post Overlay: ·One patch in 2006 ·8 to 9 small patches in 2008 Shortcut (2) to CD Drive.lnk #12;Need to Move Concrete Overlays Forward Concrete Overlay


304

Pavement roughness on expansive clays

  Texas A&M University - TxSpace

Summary: 7 roadway segments. All these soils have been evaluated by soil scien- tists as having a high or very high shrink-swell potential. Also, ~nformation about the parent materials of the soils was obtained from a geological map (18.... For example, samples of all the soils listed in Table 7 as having a very high shrink- swell potential have average plasticity indexes equal to 35 or above. On the other hand, soils from Huntsville 1, Fairfield 1, Fairfleld 2, and Thrall 1 (listed as having...

Velasco, Manuel O
1980-01-01

305

12th Annual Minnesota Pavement

  Energy Storage, Conversion and Utilization Websites

Summary: Engineering, University of Minnesota City Engineers Association of Minnesota Minnesota County Engineers, University of Minnesota Facilitated by: College of Continuing Education, University of Minnesota February 14, 2008 University of Minnesota St. Paul Campus #12;Conference Objective This one-day annual conference

Minnesota, University of

306

Adaptive prediction of pavement performance

  Texas A&M University - TxSpace

Summary: ) is obtained from the product of the individual probability distributions The prior on $ is assumed uniform: p(tI)= 1(0 & lit & 1 ), where 1 is an indicator function. For the variance parameters, Z and V, Inverse Gamma distributions are assumed... for the priors, i e. , Z ' -Gamma(ao, b, ) = " ? exp ? ? ' (21) (22) Care must be taken in selecting the parameters of the prior distributions, ann bn, ca and dn called hyperparameters, since the results of the analyses may sometimes depend on those...

Zulyaminayn, Mohammed
2002-01-01

307

Concrete Pavement Surface Characteristics Program

  Engineering Websites

Summary: : In Vehicle Standardized by SAE J1477 and ISO 5128 Same vehicle used for OBSI and In-Vehicle noise testing Standardization via AASHTO #12;0.00 0.05 0.10 0.15 0.20 0.25 0.30 96 98 100 102 104 106 108 110 A-weighted Overall


308

Nondestructive Evaluation of Pavements Ultrasonic

  Energy Storage, Conversion and Utilization Websites

Summary: .weebly.com #12;Introduction ­ Propagation Material ·! Effect of the concrete medium on measuring thickness, concrete is heterogeneous ­! Wave loses energy depending on the relationship between the scatterer-echo device for thickness and flaw detection in concrete Ð ! self-calibrating MIRA: Ultrasonic Low Frequency

Minnesota, University of

309

CRACKSCOPEAUTOMATIC PAVEMENT CRACKING INSPECTION SYSTEM

  Energy Storage, Conversion and Utilization Websites

Summary: this contract, including any art, method, process, machine manufacture, design or composition of matter, or any ...............................................................................................................1 1.2 Laser Safety

Texas at Austin, University of

310

Gina Ahlstrom Concrete Pavement Engineer

  Engineering Websites

Summary: Concrete PrismTest (CPT) if the owner does not have a good idea of theASR susceptibility of their aggregate aggregates only C 1567 Accelerated Mortar Bar Test- tests job mixes C 1293 Concrete PrismTest #12;Determining Aggregate Reactivity ASTM C 1293 Concrete PrismTest Test is to determine reactivity of coarse


311

ADVERTISING SPECS Full Page (bleed)

  Biology and Medicine Websites

Summary: be submitted electronically via e-mail, CD, or DVD media. Any spot ink colors or color images should of grayscale and color images in the PDF should be set at 300 ppi down sampling, with the image quality set are JPG (set compression to highest quality),TIFF, or EPS (convert all text to outlines). Contact: Carly

Capecchi, Mario R.

312

Consolidation of continuously reinforced concrete pavements 

  Texas A&M University - TxSpace

Summary: slab; and (6) acceleration measure m ent as a method of monitoring consolidation by vibration. Each of these parameters of study are discussed in detail in the following Chapters. CHAPTER II LITERATURE REVIEW Background Description of Consolidation... to determine the effects of coarse aggregate factor, maximum aggregate size, vibrator spacing, and the method of vibrator mounting on the achieved consolidation of C R C P were performed. Also studied were variations in consolidation throughout the depth...

Winn, Dan Parker
1984-01-01

313

Pavement conference..............2 Eno award ...............................3

  Energy Storage, Conversion and Utilization Websites

Summary: from all walks of life in both online and in- person activities. Visioning will help Mn/DOT and its employers. The event, held March 1 on the east bank campus in Minneapolis, featured a general- session panel

Minnesota, University of

314

Permeable Pavements, Green Roofs, and Cisterns

  Environmental Management and Restoration Websites

Summary: and improve the water quality of runoff from new residential and commercial developments by using stormwater to conserve the Management Practices. It described site's natural or predeveloped hydrologic several including the use of permeable pave- (sufaces that do not allow water to filter ments, green roofs

Hunt, William F.

315

Demonstration of Technologies for Concrete Pavement Quality

  Engineering Websites

Summary: Commission at 800-457-4416 or the Iowa Department of Transportation affirmative action officer. If you need the agency's affirmative action officer at 800-262-0003. The preparation of this report was financed in part


316

10th Annual Minnesota Pavement Conference

  Energy Storage, Conversion and Utilization Websites

Summary: Engineering, University of Minnesota City Engineers Association of Minnesota Minnesota County Engineers for Local Transportation Minnesota Local Road Research Board (LRRB) American Council of Engineering Companies of Minnesota Transportation Engineering and Road Research Alliance (TERRA) Hosted by: Center

Minnesota, University of

317

11th Annual Minnesota Pavement Conference

  Energy Storage, Conversion and Utilization Websites

Summary: Engineering, University of Minnesota City Engineers Association of Minnesota Minnesota County Engineers for Local Transportation Minnesota Local Road Research Board (LRRB) Transportation Engineering and Road of Transportation Lev Khazanovich, Department of Civil Engineering, University of Minnesota Bill Lohr, Federal

Minnesota, University of

318

PAVEMENT TECHNOLOGY UPDATE This Technology Transfer Program

  Engineering Websites

Summary: sound, and worker friendly methods to produce asphalt mixes. Highway agencies are looking for ways, and industry. Introduction Warm Mix Asphalt (WMA) has the potential for being one of the most important break five years more than half of all asphalt mix produced nationwide will use warm mix processes

California at Berkeley, University of

319

Asphalt Oxidation Kinetics and Pavement Oxidation Modeling 

  Texas A&M University - TxSpace

Summary: simplified model. And the experimental effort and time to obtain these kinetics parameters were significantly reduced. Furthermore, to investigate the mechanism of asphalt oxidation, two antioxidants were studied on their effectiveness. Asphalt oxidation...

Jin, Xin
2012-07-16

320

WINTER PERFORMANCE ASSESSMENT OF PERMEABLE PAVEMENTS

  Environmental Management and Restoration Websites

Summary: , 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


321

Life Cycle Assessment of Reclaimed Asphalt Pavement

  Energy Storage, Conversion and Utilization Websites

Summary: Construction Urban Construction #12;Global Warming Potential 0 200 400 600 800 1,000 1,200 1,400 1,600 Virgin Mat. 15% RAP GlobalWarmingPotential (kgCO2-eq) Rural Construction Urban Construction #12;Emissions

Minnesota, University of

322

Legislative seminars ..............2 Pavement conference..............2

  Energy Storage, Conversion and Utilization Websites

Summary: will be held May 19­20 at a new location: the Sheraton Bloomington Hotel in Minneapolis. Access to Destinations is an interdisciplin- ary research and outreach effort coordinated by CTS that takes a new approach to under- standing a presentation by Tom Vanderbilt, the New York Times best-selling author of Traffic: Why We Drive the Way We Do

Minnesota, University of

323

Empirical Comparison of Statistical Pavement Performance Models

  Engineering Websites

Summary: is carried out using both aggregate- and disaggregate-level measures. The main insight that stems from our analyzed and evaluated qualitatively in the literature McNeil et al. 1992; Gendreau and Soriano 1998


324

Pavement Conference ............3 Conference opener..................4

  Energy Storage, Conversion and Utilization Websites

Summary: ..............4 A monthly report on transportation research, education, and outreach activities at the University design standards do not take into account actual crash statistics and rely on unsophisticated models statistical approaches has boosted Speakers and topics have been announced for the 21st Annual CTS

Minnesota, University of

325

Consolidation of continuously reinforced concrete pavements

  Texas A&M University - TxSpace

Summary: that the presence of chemical or mineral admixtures will affect the rheological properties of a concrete mixture. With the advent of superplasticizers there is a lack of information concerning their implications in the C R C P industry. There is a need... honey-combed concrete, to further the use of acceleration measurement as a control of consolidation, to determine the effects of admixtures on consolidation efforts, and to advance the understanding of the effects of mounting paving vibrators...

Winn, Dan Parker
1984-01-01

326

Wearability of Portland Cement Concrete Pavement Finishes

  Texas A&M University - TxSpace

Summary: Studies on Minimun Friction Value for Remedial Action. 23 2-2 BPN as a Function of the SN Values Taken at a Skid Trailer Speed of 40 mph. 26 3-1 Surface Finishes and Finishing Fquipment. 31 3-2 Texas Highway Department Circular Test Track Austin... the microtexture of the fine aggregate type accounts for most of the skid resistance in the dry or moderately wet condition and each aggregate type exhibits a different microtexture. This micro- texture is most important in maintaining good adhesion-friction...

McKeen, William Rew
1971-01-01

327

Coagulation Factors in Controlling Traumatic Bleeds

  Computer Technologies and Information Sciences Websites

Summary: thromboplastin time) 1.5 times normal, INR (international normalized ratio) > 1.5, platelet count (V, VIII, IX) 3. Potent platelet activator and mitogen 4. Activates protein C pathway, lessening of platelets and FVIII-von Willebrand complex platelet adherence and activation, secretion and synthesis

Pillow, Jonathan

328

Bleed off the page The Bartlett

  Environmental Sciences and Ecology Websites

Summary: of collaborators) were spruce and northern hardwood silviculture, mensuration (form class tables), fire, pathology foundation and well in Compartment 15 (current compartment numbers) and maybe another old camp site along the Shannon Road in Compartment 15 or 16. Also, some word-of-mouth stories about stagecoach roads, way


329

Bacterial Bleeding Canker of Horse Chestnut

  Renewable Energy Websites

Summary: Real-time PCR assay uses a unique primer pair which targets and amplifies a region of DNA specific only in the presence of Pae Can detect Pae directly from diseased horse chestnut tissues The amount of DNA is also measured - Assay detects as little as 1 pg DNA Fast, specific, sensitive! Green, S., Laue, B., Fossdal, C


330

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

  Engineering Websites

Summary: Furnace Slag) Quality AS 491.14 Curing Compounds (4105) Lab Tested 405 Clear Curing Compounds (4105) AB Portland Cement (4101) Quality AS 401 Fly Ash (4108) Quality AS 491.17 GGBFS (Ground Granulated Blast


331

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

  Texas A&M University - TxSpace

Summary: improve motorist operations at left exit lane drops. To determine the effectiveness of the markings, driver behavior was examined during daylight and evening hours before and after the lane drop markings were installed. Driver behavior was measured using...

Lance, Marty Tina
1994-01-01

332

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

  MIT - DSpace

Summary: 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 ...

Akbarian, Mehdi
2012-01-01

333

A relation of measured deflections, pavement performance and soil characteristics

  Texas A&M University - TxSpace

Summary: ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 52 BI 5 LI OG BAPHY ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ o ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 56 LIST OF FIGUBES Figure N umber Ti. tie Page Plan and Profile of Test Seotion 2 - Stations 48 g 00 to 65 g 00e... ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ oooo ~ ~ ~ ~ ~ o ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 7 Plan and Profile of Teat Seotion 2 - Stations 65 g 00 to 78 g 00m ~ ~ o ~ ~ ~ ~ ~ ~ e ~ aoo ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ o ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 8 View Showing...

Hanna, Daniel Nelson
1957-01-01

334

Concrete Pavement Research Project Title Project Description First Last Email

  Engineering Websites

Summary: formwork for construction, this new type of self-consolidating concrete for slip-form paving will have to hold its shape right after paving, thus not requiring formwork for construction. Kejin Wang kejinw


335

Pavement rehabilitation and funds allocation for a transportation network

  Texas A&M University - TxSpace

Summary: , flushing, failures, alligator cracking, longitudinal cracking, and transversal cracking. Each distress is evaluated 1n terms of area and sever1ty. The 1nformation is recorded 1n rating forms (Figure 2) and then transferred 1nto a central data bank where... was conducted in 1958-1960, the performance function was assumed to be of the form (4) where the damage function (normalized variable that ranges from 0 to I) time, load, or climatic cycles(depending on the type of distress-e. g. alligator cracking...

Stein, Alvaro
1985-01-01

336

Mechanistic modeling of roughness on continuously reinforced concrete pavement

  Texas A&M University - TxSpace

Summary: 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...

Sriraman, Supriya
1996-01-01

337

Structural Change, Impacts and Opportunities For Concrete Pavement

  Engineering Websites

Summary: Developed Economies Asia, Excl Japan #12;Oil Price History $ Per Barrel, West Texas Intermediate 0 20 40 60 on LDC's & Demand Side Old Reality: Emphasis on OPEC & Supply Side #12;Asphalt &Oil Price Correlation Percent Change in Oil Prices Vs Percent Change in Asphalt PPI Lagged 6 months -100% -50% 0% 50% 100% 150


338

Combined permeable pavement and ground source heat pump systems 

  Edinburgh, University of - Research Archive

Summary: demand removal. Variable removal efficiencies have been calculated for nutrients such as ortho?phosphate?phosphorus, ammonia and nitrates/nitrites. Calculated Coefficients of Performance and Energy Efficiency Rates provided evidence on correctness of GSHP...

Grabowiecki, Piotr
2010-01-01

339

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

  Engineering Websites

Summary: joints after slabs are placed. · Longitudinal joint tie type, locations, spacing and the mechanism used to tie adjacent slabs together. · Lifting insert type, location, positioning, and capping or backfill fabrication shall be steel. Side forms shall have form plates of sufficient thickness, shall be sufficiently


340

A sensitivity analysis of the Texas flexible pavement system 

  Texas A&M University - TxSpace

Summary: reliability of D is approximately equivaient to 90/o reliability and would typically be used for interstate freeways and urban arterials. A reliability of B is approximately equivalent to 70% reliability and would be used on farm to market or other low... in the rate of distress that occurred between year 1 and year 10. The differences were about the same for both locations evaluated. The amount of distress that occurred during the first year did appear to be influenced by location. After the first year a...

Henry, Claude Patrick
1991-01-01

341

A sensitivity analysis of the Texas flexible pavement system

  Texas A&M University - TxSpace

Summary: . stab. )Granular Base Thick. 12/10 6/6 ESAL 20E6 4E6 Pl Subgrade 10 Subgrade Modulus 7000 psi 18000 psi Surface Thickness 3. 5" 2. 0' Shoulder Type Paved Unpaved AC Type (Base} AC 20 AC 10 % Voids/% AC (Base) 5/7 7/4 Granular Base Mod Wus 60, 000... BASE 10 YR. ASPH STAB BASE 1 YR, ASPH STAB BASE 10 YR ASPH/GRN BASE 1 YR, ASPH/GRN BASE 10 YR, 7 6 5 4 3 2 1 0 1 2 3 'I 5 6 CqAC/EP AqEA ( 1OP Sy. 1 OALHART Figure 4: Cracked Area Comparison Between Location and Time. GRANULAR BASE 1 YR...

Henry, Claude Patrick
1991-01-01

342

Multi-period optimization of pavement management systems

  Texas A&M University - TxSpace

Summary: process. Considerable research has been devoted to overcoming the problem of dimensionality in DP techniques. A significant attempt for reducing the dimensionality of state variables is found in the approach of Morin and Marsten (1976a) who developed... relaxation with a resource-constrained shortest-path problem]. Morin and Marsten (1976b, 1978) have also demonstrated how the B-and-B method can be implemented in DP for reducing the storage and computational requirements. The use of the simple yet...

Yoo, Jaewook
2004-09-30

343

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

  Engineering Websites

Summary: that contain structures such as bridges or railroad crossings. There is an incentive-only spec for very good are in the urban environment, we are operating this spec on an incentive-only basis for very good ride. Within each for PCC). 2. Do the requirements apply to both PCC and HMA? Yes. 3. Are you considering changes


344

Heavy Metals in Glass Beads Used in Pavement Markings 

  Texas A&M University - TxSpace

Summary: media. Mean arsenic content, measured using the Pacific Northwest National Laboratory's KOH fusion digestion, in all the glass beads examined ranged from 11 ppm to 82 ppm, while mean lead content, measured using KOH fusion digestion, ranged from below...

Mangalgiri, Kiranmayi
2012-07-16

345

Effects of environment and construction procedures on concrete pavement surfaces 

  Texas A&M University - TxSpace

Summary: adversely affected th" s! rengih of the conc":te labs, 5. Placing i'resh ccncrcte on a cry subbase (even at 140'F) did net a. !versely affect the strength of the concr te slabs. 6. Of. the three types of finishe- employed, thc burlap drag was found... strength of the concrete a!ay be ob- 3 tained. The end o- this stage is characi. erized by the closur of thc surface, the formation of a continuous metr'x cf mortar enclosing the coarse aggregate and the entrapped air. bubbles. At this stage, Lhe...

Wrbas, Ronald Otto
1972-01-01

346

Surface Loading of a Multilayered Viscoelastic Pavement: Semianalytical Solution

  Engineering Websites

Summary: - cades, the theory has been extended for an arbitrary number of layers and various computer codes have methods, the present method is also called a dual-parameter method. The present formulation is verified, as compared to the conventional numerical methods. We clearly show that the present dual

Pan, Ernie

347

Model studies of stresses in upper layers of pavements 

  Texas A&M University - TxSpace

Summary: During early pregnancy in ruminants, progesterone (P4) from the corpus luteum (CL) and interferon tau (IFNT) from the conceptus act on the endometrium to regulate genes including interferon stimulated genes (ISGs) that are ...

Subbaraju, Bhupatiraju
1955-01-01

348

Full-Depth Pavement Reclamation with Foamed Asphalt: Final Report

  University of California eScholarship Repository

Summary: pp 12-20). Mix Design Methods for Asphalt Concrete and Otherconcrete stiffness (negative) were observed. These values assume a mix designmix design, structural design, and construction guidelines for full-depth reclamation (FDR) of cracked asphalt concrete

Jones, David; Fu, P.; Harvey, John T; Halles, F.
2008-01-01

349

Full-Depth Pavement Reclamation with Foamed Asphalt: Final Report

  University of California eScholarship Repository

Summary: study, coated sand was considered to be part of the asphalt masticmastic bonds aggregate particles together providing additional tensile strength. During the UCPRC study,study, the distribution of the air voids was considered as being of secondary importance compared to the distribution of the asphalt mastic

Jones, David; Fu, P.; Harvey, John T; Halles, F.
2008-01-01

350

Pavement rehabilitation and funds allocation for a transportation network 

  Texas A&M University - TxSpace

Summary: Seal 5 - Strip Seal 6 - Seal Coat 7 - Asphalt-Rubber Seal Coat 8 - Slurry Seal 9 - Level-Up 10 - Thin Overlay 11 - Rotomill 12 - Spot Seal 13 - Rotomill + Seal Coat 14 - Rotomill + Thin Overlay Cost 0. 23/yd 4. 20/yd /inch 4. 45/yd /inch.... Listing of Maintenance Strategies. 0 Oo Nothing 1 Seal Cracks Z Partial Patch 3 Full Oepth Patch 4 Fog Seal 5 Strip Seal 6 Seal Coat 7 Asphalt-Rubber Seal 8 Slurry Seal g Level-up 10 Thin Overlay 11 Rotomill 1Z Spot Seal 13 Rotomill + Seal...

Stein, Alvaro
1985-01-01

351

An evaluation of the flexible pavement design system FPS19 

  Texas A&M University - TxSpace

Summary: Thickness as a Function of ASB Modulus . . . . 16. Change in Base Thickness Main Effects - Asph. Stab. Base . . . 17. Change in Base Thickness Interactions ? Asph. Stab. Base . . . . . 18. Comparison Between FPS19 and FPS11 Before Overlay... . . . . . . . . 19. Comparison Between FPS19 and FPS11 After Overlay . . . . . . . . . . . 20. Comparison Between FPS19 and TFPS Before Overlay . . . . . . . . . . . . . 48 50 . . . 52 . . . 54 . . . 58 . . . 60 . . . 65 . . . 67 68 FIGURE 21. Comparison...

Carmona, Gerardo M
1998-01-01

352

Variability of hot mix asphalt produced with reclaimed asphalt pavement 

  Texas A&M University - TxSpace

Summary: analysis including the ternary diagrams for mixes and aggregates, a multivariate beta model, variability analysis using a multivariate variance assumption, and ternary quality control charts. It also describes the hypothesis tests using a k-variate student...

Yang, Guiqin
1999-01-01

353

Mechanistic modeling of roughness on continuously reinforced concrete pavement 

  Texas A&M University - TxSpace

Summary: Roughness can be termed as the irregularity on the surface of the road which is familiar to all the users of the road. A description of roughness and the database used in this effort are presented. The results of a laboratory ...

Sriraman, Supriya
1996-01-01

354

CHECKLIST FOR INSPECTION OF POROUS PAVEMENTS Location: Inspector

  Environmental Management and Restoration Websites

Summary: /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


355

Effects of environment and construction procedures on concrete pavement surfaces

  Texas A&M University - TxSpace

Summary: be durable, structurally sound, and safe (provide ample ance) . To this end, a study was conducted to d ve) o) i improv '. d construction prattler s rel ated to th consolidation, f. 'nishing, and cu. ing of Continuously Reinforced Concrete Pavemont, s (CR... of co). crete slabs, whether internal or surface, improved the surface properties of tl;e concrete. 3, Neither the type nor. the texture oi' the. subbas in. es- tigated adver. ely affected the strengths of the concrete slab. . 4. Placing fresh...

Wrbas, Ronald Otto
1972-01-01

356

New Developments in the Debate on Pavement-Vehicle

  Engineering Websites

Summary: ;Slide 2 Motivation: carbon management in the transportation sector Fossil Fuel Combustion 92% Other 1% Sources of US Greenhouse Gas (GHG) Emissions (2012) Sources of US Fossil Fuel GHG Emissions (2012 on Fuel Consumption Jeremy Gregory, Mehdi Akbarian, Arghavan Louhghalam, Franz-Josef Ulm March 4, 2014 #12

de Weck, Olivier L.

357

Guide to Cement-Based Integrated Pavement Solutions

  Engineering Websites

Summary: Cement- Modified Soils Roller- Com- pacted Con- crete EXTERNAL COMPACTION Concrete Recycling Full with cement, cement-modified soils, recycled concrete aggregates, and repair and restoration. Each application Conventional Overlays CRCP VIBRATORY COMPACTION Pervious Concrete Full-Depth Reclamation Cement- Treat- ed Base


358

Layer equivalency factors and deformation characteristics of flexible pavements

  Texas A&M University - TxSpace

Summary: of Texas. Taking the sand and oyster shell base course as reference (equivalency factor of I), it was found that the lime treated crushed sandstone had an equivalency factor of 0. 68, the 1ron ore l. 17, and the select sand 1. 29. This study permitted... THE EQUIVALENCY FACTOR Determination of In-situ Modulus from Texas Triaxial Test Modulus . Determination of the Equivalency Factor Examples . CONCLUSIONS AND RECOMMENDATIONS APPENDIX I. - REFERENCES APPENDIX II. - NOTATION Page 96 96 98 99 102 105...

Hung, Jung-Tsann
1981-01-01

359

TRUCK PERFORMANCE CURVES REFLECTIVE OF TRUCK AND PAVEMENT CHARACTERISTICS

  Energy Storage, Conversion and Utilization Websites

Summary: ABSTRACT The paper utilizes a linearly increasing variable power vehicle dynamics model to develop modeling, vehicle dynamics, roadway design, truck climbing lanes. INTRODUCTION Mannering and Kilareski

Rakha, Hesham A.

360

GFRP DOWEL BARs FOR CONCRETE PAVEMENT Susan L. Grieef

  Engineering Websites

Summary: ;ABSTRACT Traditionally, plain steel or epoxy-coated steel has be~n used for dowel bars in concrete partially bonded or not bonded to the concrete. The tested specimens were designed to apply a pure shear load to the dowels to determine their behaviour and strength. The results revealed that the dowels


361

RESEARCH REPORT 1250-1 EFFECT OF RECLAIMED ASPHALT PAVEMENT

  Energy Storage, Conversion and Utilization Websites

Summary: , rheological properties were measured for different combinations and percentages of aged asphalts and virgin asphalts. The result of this study is a methodology for determining the effect of RAP on rheological

Texas at Austin, University of

362

Roads to Development: Experimental Evidence from Urban Road Pavement

  Environmental Sciences and Ecology Websites

Summary: and electricity. We estimate the impacts of slum infras- tructure upgrading using an experiment in urban road capita expenditures, increased motor vehicle ownership and were more likely to have made home

Silver, Whendee

363

+0 000 FFL Main Space -0 680 Pavement Level

  Mathematics Websites

Summary: 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

Wagner, Stephan

364

Exploration of Pavement Oxidation Model Applications and Field Validation

  Texas A&M University - TxSpace

Summary: Materials LS, and Eagleman Field Sand 2.0 2 ATL IH 20 WC 2001 PG 76- 22 (SBS) 5.1 12.5 mm Sp Wright Asphalt Sandstone SS from Meridian (MM), Sawyer; Fines from Ark Granite Donnafill, Little Rock 2.5 3 WAC IH 35 M 2002 PG 70- 22 (SBS...) 5.3 19 mm Sp Fina, Port Aurther Igneous (grantie?) / LS Hanson (OK): Granite, Young/Maddox : Limestone 3.5 4 WFS SH 59 DC 7/5/2007 PG 70- 22 4.8 Type D SEM materials , Saginaw Limestone Hanson, Bridgeport 2.0 5 LRD IH 35 Layer...

Cui, Yuanchen
2014-08-11

365

MNROAD SPECIAL PROVISIONS FOR COMPOSITE PAVEMENT CONSTRUCTION Section Page

  Engineering Websites

Summary: .....................................................................................................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


366

A relation of measured deflections, pavement performance and soil characteristics 

  Texas A&M University - TxSpace

Summary: 0 4 0 8 0 ~ 0 0 g VS 8 s cO c o Q 0 g rn 58 g '0 8e 54 I Q g 4 ~~y 8 $d a Cl g 48 n 4e 8 g 4& O O af O W O O C& lO g g IO+ O Ol CQ ol co Cl I gm?~~o age 5 'f 4 4 ?~mo m~~e IOl t/IO + hO Cll W CO g ~ g y g o o o e oa g m e e ee...

Hanna, Daniel Nelson
1957-01-01

367

Early age delamination in concrete pavements made with gravel aggregates 

  Texas A&M University - TxSpace

Summary: 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...

Liu, Juanyu
2009-06-02

368

Complex Modulus Prediction of Asphalt Concrete Pavement Cores

  Texas A&M University - TxSpace

Summary: gradient of asphalt concrete cores in different field locations. Because field cores are different from the asphalt mixtures made and compacted in the lab, field cores should not be substituted by lab made lab compacted (LMLC) asphalt mixtures perfectly...

Ling, Meng
2013-12-02

369

Variability of hot mix asphalt produced with reclaimed asphalt pavement

  Texas A&M University - TxSpace

Summary: t distribution and an F-test. The following conclusions are obtained: i) RAP is better used in producing a mix with a relatively small top size 3/8" (Type S-III mix) or 1/2'' (Type S-I mix), and not with a sieve size larger than 1" (Type S-II mix); ii) RAP...

Yang, Guiqin
1999-01-01

370

Tolerable Strains for HMA Overlays over Concrete Pavements

  University of Kansas - KU ScholarWorks

Summary: Materials from two Kansas Department of Transportation (KDOT) projects', namely 089 C-4318-01 (Mix 1) and 56-29 KA-1087-01 (Mix 2), were used for the laboratory study. Considering typical overlay thicknesses used in Kansas, samples of thickness 1...

Gautam, Ashwani
2009-06-10

371

Dynamic response of guardrail systems encased in pavement mow strips

  Texas A&M University - TxSpace

Summary: numerical simulation software in the roadside-safety engineering community. It possesses a large material database, many available element formulations including discrete, shell, and solid elements, and an advanced set of contact algorithms. As computer... Guardrail System after Impact 7 Exploded View of Steel Post with Routed Wood Blockout. 8 Left Elevation View of G4(1S) Guardrail System. 9 Wood Post Guardrail System Encased in Concrete Mow Strip . . . . . 10 Bogie Impact Vehicle. 11 Finite Element...

Seckinger, Nathaniel Ryan
2002-01-01

372

Nonwoven Geotextile Interlayers for Concrete Pavements and Overlays

  Engineering Websites

Summary: Bauklasse SV I II III IV V VI Dicke des frostsich.Oberbaues1) 1.1 1.2 1.3 2 Dicke der Frostschutzschicht 51 - 322) 42 52 - - 332) 43 - 293) 39 49 - 212) 31 41 - 212) 31 41 Dicke der Frostschutzschicht 40 120 45 15 39 120 45 15 38 120 45 27 25 24 23 Vliesstoff Dicke der Schicht aus


373

Early age delamination in concrete pavements made with gravel aggregates

  Texas A&M University - TxSpace

Summary: 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...

Liu, Juanyu
2009-06-02

374

Asphalt Pavement Aging and Temperature Dependent Properties through a Functionally

  Mathematics Websites

Summary: times modified with polymers to enhance properties ­ Undergoes oxidative aging (stiffening) with time are GRADED Structures Sources: 1. Oxidative aging 2. Temperature dependence of material properties 3. Other with significant errors at the layer interfaces (especially stresses) Most severe response observed

Paulino, Glaucio H.

375

Impact of Curing Methods on Curling of Concrete Pavements

  Engineering Websites

Summary: dry wet less wet #12;moisture temperature dry wet less dry wet less wet cold less cold #12;moisture temperature dry wet less dry wet less wet hot less hot cold less cold #12;moisture temperature dry wet less dry wet less wet hot less hot cold less cold The focus of this talk #12;After Weiss (2009) #12;Why


376

Field Manual for Crack Sealing in Asphalt Pavements

  Energy Storage, Conversion and Utilization Websites

Summary: Research Project 0-4061-P3 Comparison of Hot-Poured Crack Sealant to Emulsified Asphalt Crack Sealant-4061 Comparison of Hot-Poured Crack Sealant to Emulsified Asphalt Crack Sealant Product Number 3 Field Manual and the Texas Department of Transportation. Keywords: Hot Poured Crack Sealants, Cold Poured Crack Sealants

Texas at Austin, University of

377

Effects of pavement surface characteristics and textures on skid resistance

  Texas A&M University - TxSpace

Summary: forces during all operating modes of vehicle tires. The operating modes are the free-rolling, slipping, and the skidding modes. Sufficient friction forces under all operating modes will lead to fewer skidding accidents and to safer highways.... This peak point is sometimes called critical slip as shown in Figure 1 or as the incipient-skid point and the friction coefficient at the critical slip as the peak coefficients. Any I50 c3 i. j I tJ , 00 it) E. tel (;"-r - ? t ttl Itt1() 0 !. WI...

Tomita, Hisao
1970-01-01

378

Toward an Improved Model of Asphalt Binder Oxidation in Pavements

  Texas A&M University - TxSpace

Summary: and oxygen transport model, coupled with binder reaction kinetics, provides the basis for such calculations. A one-dimensional thermal transport model, coupled with site-specific model parameters and recent improvements in the availability of required input...

Prapaitrakul, Nikornpon
2011-02-22

379

Full-Depth Pavement Reclamation with Foamed Asphalt: Final Report

  University of California eScholarship Repository

Summary: areas of cracking (thermal and fatigue) were observed alongroad had extensive thermal and fatigue cracking. The nominalThermal cracking (Figure 4.9) due to low temperatures in winter. ? Transverse fatigue

Jones, David; Fu, P.; Harvey, John T; Halles, F.
2008-01-01

380

Winter Performance and Maintenance of Porous Asphalt Pavements

  Environmental Management and Restoration Websites

Summary: (11AM on 2/3/07) PA/DMA Snow & Ice Cover PA DMA #12;18 Conditions after thawing and subsequent refreezing (9AM on 3/18/07) No black ice formation on PA PA/DMA Snow & Ice Cover PA DMA #12;19 PA/DMA Freezing Rain PA after spring rain on snow eventDMA after spring rain on snow event #12;· More snow & ice


381

Cosmogenic 3 He surface-exposure dating of stone pavements

  Engineering Websites

Summary: , Albuquerque, New Mexico 87131 Jane Poths Isotope Chemistry, Los Alamos National Laboratory, Los Alamos, New, as determined from in-situ­produced cosmo- genic isotopes, are currently used to deter- mine the timing

Ahmad, Sajjad

382

Implications of reliability in mechanistic/empirical pavement design applications

  Texas A&M University - TxSpace

Summary: points on a normal distribution 13 15 Figure 3- Figure 4- Log-normal density functions Graphs of the Weibull density functions for v=0. 0, P = 2. 0, ot = 0. 5, 1. 0, 2. 0 16 18 Figure 5- Graphs of the Weibull density functions for v = 0. 0, P...-normal density functions (l). The 8'eibttll Distnbution The Weibull distribution was introduced by the Swedish physicist Waloddi Weibull in 1939 to help reduce the error that occurs with the fit of the exponential or gamma distributions for various...

Killingsworth, Brian Mark
1994-01-01

383

Using the Multi-Depth Deflectometer to study pavement response 

  Texas A&M University - TxSpace

Summary: Field calibration of MDD Data logging system of MOD MDD response before filtering MDD response after filtering Test for true convexity Passing convexity test Failing convexity test Depth deflection backcalculation input screen 1- Layer thickness... and moduli ranges Depth deflection backcalculation input screen 2- Deflections and load . Typical output of depth deflection backcalculation procedure 38 39 42 43 49 52 53 55 56 59 60 62 63 69 69 75 76 78 80 80 81 xiv FIGURE 40(a...

Yazdani, Jamshed Iqbal
1989-01-01

384

An Approach to Point Based Approximate Color Bleeding With Volumes

  Computer Technologies and Information Sciences Websites

Summary: . Wood California Polytechnic State University Abstract. Achieving realistic or believable global illumination in scenes with participating media is expensive. Light interacts with the parti- cles of a volume overhead under 5%. 1 Introduction The ability to render scenes with realistic lighting is desirable

Wood, Zoë J.

385

Testing Rabbit Bleeds By Elisa Claire Walczak January 1996

  Biology and Medicine Websites

Summary: gotten an immune response to the peptide and how strong that immune response is by doing ELISAs against peptide conjugated to BSA. By conjugating to BSA, you will eliminate any signal for antibodies generated to KLH during immunization. Protocol: A. Coupling Peptide to BSA You need: · 1 ml of 2 mg/ml BSA in 0.1 M

Mitchison, Tim

386

Real-time Synthesis of Bleeding for Virtual Hysteroscopy

  Engineering Websites

Summary: of the uterus performed by using one hull containing both the endoscope and the surgical instrument introduced through the cervix into the uterus. To aid visualiza- tion and surgical intervention, a hydrometra

McKenzie, Rick

387

No Chemical, Zero Bleed Cooling Tower Water Treatment Process 

  Texas A&M University - TxSpace

Summary: and injected into the bypass system through a venturi type injector. This kills algae, slime and bacteria and enhances the magnetic descaling process. The final stage filter separates solids from the water to prevent corrosion from impingement. These solids...

Coke, A. L.
1992-01-01

388

REVIEW ARTICLE Prevention of spontaneous bleeding in dogs with haemophilia

  Biology and Medicine Websites

Summary: ) in coagulation factor VIII (FVIII) or coagulation factor IX (FIX) respectively. These dogs exhibit a sponta and by long-term expression of the missing coagulation factors or canine factor VIIa (cFVIIa) mediated correction of coagulopathy has not been achieved, published data show that prophylactic factor replace- ment

Kay, Mark A.

389

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

  University of Kansas - KU ScholarWorks

Summary: in the geotechnical testing box and tested under cyclic loading. The subgrade was composed of a mixture of 75% Kansas river sand and 25% Kaolin at 10.4% optimum moisture content, which corresponds to 5% CBR. The RAP base was constructed without or with geocell at 6...

Acharya, B. S.
2011-12-31

390

INTRODUCTION Pavement preservation is an approach in enhancing pavement performance using a set of practices that extends the life

  Biology and Medicine Websites

Summary: in good condition than in poor condition (Zavitski, et al.). According to the National Cooperative Highway of practice in the United States, particularly Southeastern Association of State Highway and prepared.The questionnaires were sent to southeastern state agencies as well as the local highway agencies

Stephens, Jacqueline

391

HighHigh--Speed (70mph)Speed (70mph) RealReal--Time Pavement InspectionTime Pavement Inspection

  Engineering Websites

Summary: LED linear lighting Allows consistent imaging regardless of daylightAllows consistent imaging regardless of daylight Eliminates object shadowsEliminates object shadows #12;5 9 LED linear lightingLED linear lighting

Lightsey, Glenn

392

Technical Report Documentation Page 1. Report No.

  Energy Storage, Conversion and Utilization Websites

Summary: pavement, life cycle cost, pavement type selection, jointed pavement 18. Distribution Statement Dossey #12;vi Acknowledgments The author wishes to acknowledge the continuing vision and support provided

Texas at Austin, University of

393

Viscoelastic Functionally Graded Finite-Element Method Using Correspondence Principle

  Mathematics Websites

Summary: pavements with material non-homogeneities. Specialized "graded elements" have been shown to provide-parametric formulation. This paper emphasizes viscoelastic behavior of asphalt concrete pavements and several examples; Asphalt pavements; Concrete pavements; Finite-element method. Author keywords: Viscoelasticity

Paulino, Glaucio H.

394

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

  Materials Science Websites

Summary: these deficiencies are investigated within the framework of a proposed mixture proportioning methodology. Variables, and the addition of either calcium hydroxide or a rapid set cement to the binder. Switching from a Type II a mixture with a higher calcium-to-silicate ratio than a comparable Class F fly ash and increased

Bentz, Dale P.

395

Permeable pavement is a system that allows rainwater and runoff to move through the pavement's porous surface to a storage layer below.

  Biology and Medicine Websites

Summary: . Amy is in terested in green infrastructure and hopes to encour age municipal use of these low impact festivals and green fairs to teach people about stormwater management. Her cur rent work includes aiding's storm water infrastructure, while removing the threat of ponding or flooding at the onsite installation

Goodman, Robert M.

396

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

Summary: the asphalt concrete layer, the average penetration rates in8. Asphalt concrete mix gradations. Penetration Rate, mm/penetration rates m across section m along section Figure 7. Distribution of asphalt concrete

Bejarano, Manuel O.; Morton, Bruce S.; Scheffy, Clark
2005-01-01

397

Robert Otto Rasmussen Vice President,TheTranstec Group, Inc.

  Engineering Websites

Summary: in these wheels can introduce unwanted texture in the pavement surface that can lead to an increase in tire-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


398

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

  Energy Storage, Conversion and Utilization Websites

Summary: Objective and Scope 45 2. PARAMETRIC STUDY OF SNOW-MELTING SYSTEM 47 2.1. Introduction 47 2.2. Methodology of Parametric Study 50 2.2.1. Organization and Methodology of Parametric Study 50 2.2.2. Methodology of Center Zone Parametric Study 52 2.2.3. Methodology of Edge Zone Parametric Study 57 2.3. Results


399

Analyses of the Response of Pavements Containing Ceramic Plugs for Vehicle Guidance

  University of California eScholarship Repository

Summary: plane; thermal loading; III Symplectic EngineeringEngineering Corporation Figure 6.22: Lateral displacement contours; longitudinal plane; thermalEngineering Corporation Figure 6.27: Lateral displacement contours; longitudinal plane; thermal

Monismith, Carl L.
2004-01-01

400

Field study of effects of construction procedures on concrete pavement surfaces 

  Texas A&M University - TxSpace

Summary: . A number of other parameters, in addition to vehicle velocity has a bearing on the phenomenon of hydroplaning. By using deep trended tires or rough textured pavemants, the effect of hydro- 1 planing. is practically eliminated. 2. 2. 5. 6 Other... representative of these used for vehicles, these tests can be performed and correlated to the behavior of vehicles in traffic. In the United States, the standardised test tire is that defined by ASTM E249. It is a bias-ply 7. 50 x 14 tire with five 12...

Davis, Jeffrey Leland
1973-01-01

401

Design, construction, and service behavior of selected pavements in district 17 of the Texas Highway Department

  Texas A&M University - TxSpace

Summary: 'dharasbs'riot&bi;, ' Fair;@his rdasonz ~on " . ' ', s&bilisabion ci9. axial- boobs saic 'ysrfoxstsd' dn +e olaj7'. subgrade, using " . phrs'e yerpen$-'-'Irjtdrated '~--by' went~": ~eel braxsxtal test . reshlbs I, Having ~le@ad the subgrade d...

Long, Robert Eugene
1962-01-01

402

An Asset Management Framework Based on Field Performance of Pavement Markings 

  Texas A&M University - TxSpace

Summary: . Sectional assessment and management methods were proposed as a part of a practical restriping methodology. An information tool was developed in a geographic information system (GIS) environment as an application. Retroreflectivity was the only performance...

Madiri, Sam
2011-08-08

403

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

  Texas A&M University - TxSpace

Summary: working satisfactorily and which needed to be modified. The performance models for ride quality (serviceability index for FPS-19), shallow rutting, deep rutting, and alligator cracking, which are the fundamental performance measures of the flexible...

Mukherjee, Biswajit
1998-01-01

404

FREE-FORM ANISOTROPY: A NEW METHOD FOR CRACK DETECTION ON PAVEMENT SURFACE IMAGES

  Physics Websites

Summary: ) longitudinal crack, (b) transversal crack, (c) alligator crack. The paper is organized as follows: In section 2 consisting in separating different crack types (longitudinal, transversal and alligator). Most of approaches

Paris-Sud XI, Université de

405

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

  Texas A&M University - TxSpace

Summary: Slope and Intercept Values of the Flushing vs. Time Curves Slope and Intercept Values of the Transverse Cracking vs. T1me Curves . Slope and Intercept Values of the Longitud1nal Crack1ng vs. Time Curves Slope and Intercept Values of the Alligator.... - VIS. Number Rankings . Data for Comparison Between Serviceability Index and the Thin Filn Oven Values, by Rank Comparison of Rankings for the Flash Point, Visual Rating Score, Alligator Cracking, and Transverse Cracking Comparison Between...

DuBose, Emmett Haygood
1980-01-01

406

Effectiveness of vertical moisture barriers in highway pavements on expansive soils

  Texas A&M University - TxSpace

Summary: DEVELOPMENT. . . Serviceability Index (SI) International Roughness Index (IRI). . Maximum Expected Bump Height (BH). . . . 58 80 80 82 82 84 84 86 87 88 90 90 97 97 101 106 118 118 119 119 TABLE OF CONTENTS (Continued) COMPARISON.... Change in IRI Deep Roots in Change in IRI Shallow Roots Change in IRI Deep Roots in Change in IRI Deep Roots in vs. TMI for Cracked Soil with "Normal" Drainage. vs. TMI for Tight Soil with in "Normal" Drainage vs. TMI for Medium Cracked Soil...

Jayatilaka, Ranasinghege
1993-01-01

407

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

  Texas A&M University - TxSpace

Summary: model....................................................................................................................65 4.20 Total permanent deformation in section C using the AASHTO 2002 model. .....65 5.1 Percent change in IRI... for different thicknesses of the base layer at 8in HMA and 8 ksi subgrade................................................................................................82 5.2 Percent change in IRI at two different thicknesses of HMA and at two types...

Masad, Sanaa Ahmad
2004-09-30

408

Development of methodology for detection of defect locations in pavement profile

  Texas A&M University - TxSpace

Summary: Illustration of computer algorithm used to compute IRI 15 10 Determining PI from profilograph trace 20 11 Illustration showing addition of sinusoids to obtain a profile 22 12 Frequency domain representation 23 13... Illustration of cosine waves in distance and frequency domain 25 14 Illustration of sine waves in distance and frequency domain 26 15 Input file format 28 16 IRI 29 17 Output 30 18 Flow chart for PAS...

Rawool, Shubham Shivaji
2005-08-29

409

Permanent Deformation of Asphalt Concrete Pavements: A Nonlinear Viscoelastic Approach to Mix Analyses and Design

  University of California eScholarship Repository

Summary: in Asphalt Concrete, Strategic Highway Research Program,Highway Research Program (SHRP) study showed that the shear deformation of asphalt concreteHighway Research Program (SI-IRP) a constitutive model was developed to characterize permanent deformation of asphalt concrete. (

Long, Fenella Margare
2001-01-01

410

Pavement Boundary Detection Via Circular Shape Models Bing Ma \\Lambda Sridhar Lakshmanan Alfred O. Hero

  Engineering Websites

Summary: ­resolution multi­ beam 77GHz millimeter­wave radar. A successful solution to this problem will impact a number detection, deformable templates, millimeter­wave radar imaging, multisensor fusion 1 Introduction Automated reported [2]. This previous study concerned the fusion of images obtained simultaneously by radar

Hero, Alfred O.

411

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

  Engineering Websites

Summary: the Cumulative Straightedge Index (CSI), and determine which lots, if any, require corrective action. Document the evaluation of each lot on a QA/QC-7 form. Submit the graphs along with the completed QA/QC-7 forms of the SEIs for one lot, which consist of not more than 25 consecutive test sections. In addition, the 0


412

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

  University of California eScholarship Repository

Summary: mixer with a piston pump and hoses with customized fittings to inject the groutmixer with a piston pump and hoses with a customized fitting to inject the groutgrout holes in the slabs as shown in Figure 12. (a) Mechanical mixer

Kohler, Erwin R.; du Plessis, Louw; Theyse, Hechter
2008-01-01

413

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

  Engineering Websites

Summary: 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

Paulino, Glaucio H.

414

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

  Texas A&M University - TxSpace

Summary: -block (SBS) copolymer, SBS vulcanized with asphalt, manganese organic complex, polyethylene, and carbon black. Asphalt binders, retained during construction and sealed in cans, were tested using SUPERPAVE[] binder tests, dynamic shear rheometer (DSR), Fourier...

Hastings, Charles Patrick
1997-01-01

415

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

  Texas A&M University - TxSpace

Summary: to the compaction pattern and the sequence of different compaction equipment. More importantly, the efficiency of compaction (reducing air voids) at a point was found to be a function of the location of this point with respect to the compaction roller width...

Kassem, Emad Abdel-Rahman Ahmed
2011-08-08

416

Oxidative reactions and their impact on the properties of asphalt as a pavement binder 

  Texas A&M University - TxSpace

Summary: . 3 C and 300 psia oxygen. Five of the asphalts were also exposed to direct sunlight to determine the effect of photo-oxidation. Asphalt aging (hardening) as measured by the storage modulus and the complex dynamic viscosity determined by a dynamic... of Seven Asphalts. 2 Values of the Slopes and the Intercepts of the Hardening Susceptibility Relationships for Seven Asphalts 3 Limiting Complex Dynamic Viscosity and Carbonyl Area for the Ampet AC-20 Asphalt for Different Aging Temperatures . 4...

Lau, Chee Keung
1991-01-01

417

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

  Texas A&M University - TxSpace

Summary: infrared (FTIR). The hardening susceptibility was compared between field binder and binder aged by different lab-aging techniques. The field values were found to match those obtained for lab-aged binder. The comparison between field and lab-aged binder...

Al-Azri, Nasser Ahmed
2002-01-01

418

EVALUATION OF THE PAVEMENT STRUCTURAL CONDITION AT NETWORK LEVEL USING FALLING WEIGHT

  Engineering Websites

Summary: (FWD) DATA by Zhanmin Zhang, Ph.D. Assistant Professor The University of Texas at Austin Department Professor The University of Texas at Austin Department of Civil Engineering Austin, TX 78712-1076 E The University of Texas at Austin Austin, TX 78712-1076 E-mail: ivand@mail.utexas.edu word count: 4164 + (9

Manuel, Lance

419

Optimal Timing of Maintenance and Rehabilitation in 60-Year Concrete Pavement

  Energy Storage, Conversion and Utilization Websites

Summary: repairs (FDR) 27 Major CPR (Full Depth Repair & Diamond Grinding) 40 End of Analysis Period (5 years of remaining life) 50 MnDOT Institutional Repair Schedule For Life Cycle Cost Analysis #12;Time (Yrs) Life(t) = (/ ) (t- t0) Typical Weibull Features #12;Important Weibull Characteristics t0 Threshold time-to-failure

Minnesota, University of

420

Evaluation of in-pavement Flashing Lights on a Six-lane Arterial Pedestrian Crossing

  Energy Storage, Conversion and Utilization Websites

Summary: the 1990s in the vicinity of the subject intersection which has a painted crosswalk as well pedestrian occurred during the 1990s in the vicinity of this intersection. The intersection has a painted crosswalk

Prevedouros, Panos D.

421

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

  University of California eScholarship Repository

Summary: mix design, asphalt concrete mix design, use of fly ash, useMix Design and Benefit Evaluation of High Solar Reflectance Concretemix design, but vary in the final production step where the bitumen and aggregate are mixed to create asphalt concrete.

Santero, Nicholas
2010-01-01

422

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

  Texas A&M University - TxSpace

Summary: 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...

Fogle, Kendall Lee
1998-01-01

423

A more comprehensive life cycle cost analysis of pavement materials alternatives

  MIT - DSpace

Summary: 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 ...

Dunn, William Colby
2014-01-01

424

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

  Texas A&M University - TxSpace

Summary: testing as GPR and FWD test. The K6 and K7 lanes were divided on 56 and 50 FWD stations, respectively. In addition, it was taken AC core samples to be tested with frequency sweep test. All these information assisted to analyze: the route profile, layers...

Ramos-Aparicio, Sonia Ines
2004-09-30

425

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

  Texas A&M University - TxSpace

Summary: to the receiver and the isolator blocks any electromagnetic power leak from the transmitter to either antenna or receiver. Thus sensitive receiver components will be protected from overload and damage. The function of the receiver is to detect echoes... the layers are only several inches thick, The generated pulse is routed from the transmitter via matched cables to the antenna for radiating into the environment. The antenna functions as a smooth electromagnetic transition passage from the transmitter...

Lau, Chun Lok
1991-01-01

426

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

  Texas A&M University - TxSpace

Summary: of adequate maintenance are causing many of these roads to deteriorate faster. The imbalance between maintenance needs and available funds tends to become more critical over time, demanding more reliable and advanced tools for allocating funds and prioritizing...

Menendez Acurio, Jose Rafael
2014-07-30

427

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

  Texas A&M University - TxSpace

Summary: will assist STAs in carrying out a LCCA, with the reliable estimation of maintenance costs. This research also provides the research community with the first view and systematic estimation method that STAs can use to determine long-term maintenance costs...

Kim, Yoo Hyun
2012-07-16

428

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

  Texas A&M University - TxSpace

Summary: 1970 to assist in selecting candidate sections for treatment and identifying cost-effective treatments. Some engineering and economic models compare different maintenance and rehabilitation alternatives considering user costs, including vehicle...

Chang Albitres, Carlos Martin
1999-01-01

429

PAVEMENT PREDICTION PERFORMANCE MODELS AND RELATION WITH TRAFFIC FATALITIES AND INJURIES

  Computer Technologies and Information Sciences Websites

Summary: part, the texture data were compared to accidents data in view of finding a relation between them. The difficulty of safety studies lies in the fact that skid resistance data rarely fit to accident data resistance and macrotexture when accidents occurred. Thus, threshold values for skid resistance

Boyer, Edmond

430

5-9035-01-P4 4-YEAR PAVEMENT MANAGEMENT PLAN (WITH

  Energy Storage, Conversion and Utilization Websites

Summary: 2009 Performing Organization: Center for Transportation Research The University of Texas at Austin 1616 Guadalupe, Suite 4.202 Austin, Texas 78701 Sponsoring Organization: Texas Department of Transportation Research and Technology Implementation Office P.O. Box 5080 Austin, Texas 78763-5080 Performed

Texas at Austin, University of

431

5-9035-01-P3 4-YEAR PAVEMENT MANAGEMENT PLAN

  Energy Storage, Conversion and Utilization Websites

Summary: for Transportation Research The University of Texas at Austin 1616 Guadalupe, Suite 4.202 Austin, Texas 78701 Sponsoring Organization: Texas Department of Transportation Research and Technology Implementation Office P.O. Box 5080 Austin, Texas 78763-5080 Performed in cooperation with the Texas Department of Transportation

Texas at Austin, University of

432

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

  Texas A&M University - TxSpace

Summary: operational PMS packages display information in a tabular format, a Geographical Information System (GIS) displays information graphically. Therefore, linking a PMS attribute database to a GIS spatial database can improve and enhance its functionality...

Lehmann, Erwin August
1996-01-01

433

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

  Texas A&M University - TxSpace

Summary: the surface (2). Both methods require the signals reaching the sensors to be analyzed by using a Fourier transform to express the wave speed data as a function of frequency. In the following sections, NDT equipment which fall into each of the four... categories are described briefly, with comments about the operating characteristics, advantages, and disadvantages. A major source of information about NDT devices is a recent Federal Highway Administration Report by ERES Consultants (I). STATIC...

Stoffels, Shelley Marie
1986-01-01

434

Evaluation of pavement base and subgrade material properties and test procedures 

  Texas A&M University - TxSpace

Summary: the strength parameters C, and $, were obtained from a standard Texas triaxial test. For the resilient properties a compressive creep and recovery test was run usmg AASHTO T-274 as a guidance to obtain the deviatoric stress, vertical and radial strains which...- 117-E was modified to include a creep loading cycle and recovery before the test sample is loaded monotonically to failure. This modified loading sequence of the material was used to obtain the resilient properues of the material K, to K, in addition...

Titus-Glover, Leslie
1995-01-01

435

A study of the theories of structural design of rigid airfield pavement

  Texas A&M University - TxSpace

Summary: intelligently spent on tho study and investigation Qf rigid pavsmonts will certainly be fully gustifiede CHART I AIRPORTS A LANDIP FIELDS GROWTH (Continental U ~ S. A. ) 6, ooo Jan. 1 ~ 1949 5&000 5 & 4, ooo 5 ~ 3, DDD 2&000 1&000 Cgl OD CO CC...SQSX'g Of ASSglgCicnS ~ r r o ' ~ o ~ ~ o ~ ~ ~ ~ o 128 . 2o QF14icsl Discllssics of AsschpQccls o ~ ~ ~ ~ ~ ~ ~ 128 , V VMS''~Q) LL'PND (. P '. ?HOCEb&ii XH BESXQIXN9 CGHCR1'8 kRX4LQ PAV~S ~ ~ r 'o ~ ~ o ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ Ar A BQXSQC@l Dcsi...

Khuri, Fuad Ilyas
1952-01-01

436

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

  Texas A&M University - TxSpace

Summary: III EXPERIMENTAL MEASUREMENTS OF HMA PROPERTIES ................ 14 INTRODUCTION...................................................................................... 14 FHWA MOBILE LABORATORY PROJECTS.............................................................. 85 VITA ........................................................................................................................ 101 viii LIST OF TABLES TABLE Page 3.1 FHWA Mobile Laboratory...

McGahan, Jeremy
2006-04-12

437

ROUGH THIN PAVEMENT THICKNESS ESTIMATION BY GPR N. Pinel, L. Liu, C. Bourlier, Y. Wang

  Physics Websites

Summary: , Ground wave propagation, Nonde- structive testing, Delay estimation 1. INTRODUCTION Ground penetrating the Maximum Likelihood Method. Index Terms-- Radar scattering, Electromagnetic scat- tering by rough surfaces radar (GPR) is a useful means of me- dia sounding, which is widely used at centimeter-scale wave

Paris-Sud XI, Université de

438

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

  Texas A&M University - TxSpace

Summary: operational PMS packages display information in a tabular format, a Geographical Information System (GIS) displays information graphically. Therefore, linking a PMS attribute database to a GIS spatial database can improve and enhance its functionality...

Lehmann, Erwin August
1996-01-01

439

A four-point bending test for the bonding evaluation of composite pavement

  Physics Websites

Summary: of interface (concrete / asphalt and asphalt / concrete) are tested in static conditions. Different failure, the existing vertical crack through the cement concrete layer combined to environmental and traffic loadings cracking phenomenon through asphalt overlay or corner cracks in concrete overlay. This paper deals

Paris-Sud XI, Université de

440

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

  Environmental Management and Restoration Websites

Summary: lay- ers: asphalt concrete, base course, subbase, and sub- grade (Figure 1). The surface layer is typically as- phalt concrete, which is a bituminous hot-mix aggregate (HMA) obtained from distillation of crude petroleum. The asphalt concrete is underlain by a layer of base course, typically consisting of 0

Zornberg, Jorge G.

441

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

  Texas A&M University - TxSpace

Summary: Understanding the early age behavior of concrete is an important issue in construction of concrete structures since different factors during construction, such as design consideration, material usage, and environmental influence, can alter...

Bari, Muhammad Ehsanul
2014-04-11

442

[ ]April 2013 Thickness is currently a pay item for portland cement concrete (PCC) pavements

  Environmental Sciences and Ecology Websites

Summary: [ ]April 2013 PROBLEM Thickness is currently a pay item for portland cement concrete (PCC 31, 2013 Funding: SPR:TT-Fed/TT-Reg Principal Investigator: Patrick Icenogle, P.E. Concrete Research information about LTRC's research program, please visit ourWeb site at www.ltrc.lsu.edu. Most concrete

Harms, Kyle E.

443

Effectiveness of vertical moisture barriers in highway pavements on expansive soils 

  Texas A&M University - TxSpace

Summary: for Sodded Median with Cracked Soil and Deep Roots under "Normal" Drainage. . . . . . . . . . . . . , . Vertical Movement vs. TMI for Sodded Median with Tight Soil and Shallow Roots under "Normal" Drainage. . . , . . . , . . Vertical Movement vs. TMI... for Sodded Median with Medium Cracked Soil and Deep Roots under "Normal" Drainage, . . . , . 110 65. 66 67. 68 Vertical Movement vs. TMI for Paved Median with Cracked Soil and Deep Roots under "Slope" Drainage, . . . . . . . . . . . . . . Vertical...

Jayatilaka, Ranasinghege
1993-01-01

444

Simultaneous Detection of Lane and Pavement Boundaries Using ModelBased Multisensor Fusion

  Engineering Websites

Summary: even in situations where there may be a great deal of clutter in the images. The ability to detect pave technique for a number of driver assisting applications, such as road departure or lane excursion warning

Hero, Alfred O.

445

Simultaneous Detection of Lane and Pavement Boundaries Using ModelBased Multisensor Fusion

  Engineering Websites

Summary: the boundaries even in situations where there may be a great deal of clutter in the images. The ability to de or enhancing tech­ nique for a number of driver assisting applications, such as road departure or lane rise to such clean images --- there may be a great deal of clutter in the images, radar images have

Hero, Alfred O.

446

Conditions Perfect for Healthy `Hike' Masses Hit the Pavement in 5th Annual

  Biology and Medicine Websites

Summary: of Famer Darrell Green, former standout cornerback for the Washington Redskins. `Who Gets Heard? What Gets dynamics at NIH. The NIH Record is recyclable as office white paper. NFL Hall of Famer Darrell Green kicks for printing this pe- riodical has been approved by the director of the Office of Management and Budget through

Bandettini, Peter A.

447

Oxidative reactions and their impact on the properties of asphalt as a pavement binder

  Texas A&M University - TxSpace

Summary: Tests Chemical Changes in Asphalt Due to Aging Relation Between Durability and Rheological Properties Photo-Oxidation EXPERIMENTAL MEIHODS Apparatus . Experimental Procedures Analytical Methods RESULTS AND DISCUSSION . Effect of Aging... on Rheological Properties Chemical Changes Due to POV-aging. Carbonyl Growth Rate Correlation of Rheological and Chemical Properties . Oxidation Kinetics. Page 7 8 11 14 14 16 19 26 26 38 46 48 61 LIST OF TABLES Table 1 Physical Properties...

Lau, Chee Keung
1991-01-01

448

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

  Texas A&M University - TxSpace

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

Al-Azri, Nasser Ahmed
2002-01-01

449

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

  Energy Storage, Conversion and Utilization Websites

Summary: that depending on the source of the virgin binder, the rheological properties of the blended binder could vary and measuring the rheological properties of the blended binders without extraction and recovery of the aged

California at Davis, University of

450

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

  Environmental Management and Restoration Websites

Summary: section, base reinforced with 3 different geosynthetic products, lime stabilized subbase and combinations cyclic fatigue behavior, and lower overall life-cycle cost (Al-Qadi et al. 2003; Berg et al. 2000

Zornberg, Jorge G.

451

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

  Engineering Websites

Summary: ) ..........................................................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


452

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

  Mathematics Websites

Summary: Simplified Solution for Periodic Thermal Discontinuities in Asphalt Overlays Bonded to Rigid to thermally induced stress. A two-dimensional solution of the displacement field is derived for periodic thermal cracks of variable depth to be considered, and its accuracy is verified through comparisons

Paulino, Glaucio H.

453

Equations for predicting the layer stiffness moduli in pavement systems containing lime-flyash stabilized materials 

  Texas A&M University - TxSpace

Summary: . progressive stiffening of some of the test sections. For low PI clayey soils, the optimum lime-flyash ratios for long term stiff- ness gains were found to be 0. 08 to 0. 5 using a minimum of 2C lime. For very low PI coarse sandy soils, 20 to 405 flyash... Analysis Number 3 Effect of Time on Lime-flyash Stabilized Layers . CHAPTER V. CONCLUSIONS AND RECONNENDATIONS . . . , . . . REFERENCES APPENDIX A Typical layouts and sections of Test sites . . . . . 8 Fitted Dynaflect deflections results C Results...

Alam, Shah Manzoor
1984-01-01

454

In-place engineering properties of recycled and stabilized pavement layers

  Texas A&M University - TxSpace

Summary: of DCP tests results with the back calculated subgrade modulus as estimated from MODULUS 5. 1. Thus, a correlation between DCP values & the subgrade modulus was developed. ii)A correlation between the stabilizer content and the layer moduli values...

Syed, Imran Majidali
1997-01-01

455

Laboratory Evaluation of Corrosion Resistance of Steel Dowels in Concrete Pavement

  University of California eScholarship Repository

Summary: Thomas. “Microstructural Design of Concrete Reinforcing BarsDesign and Electrochemical Evaluation of Dual-phase Ferritic Martensitic Steel for Concreteconcrete element. This is due to the unique functions and design

Mancio, Mauricio; Carlos, Cruz Jr.; Zhang, Jieying; Harvey, John T; Monteiro, Paulo J. M.; Ali, Abdikarim
2005-01-01

456

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

  University of Kansas - KU ScholarWorks

Summary: Administration and State Highway Commission of Kansas, Draft Environmental Impact Statement, 1974 Project No. 59-23 F-DP-067-2. S-7. 1 5 Burdett Loomis, "Lawrence Politics: Three Themes, Four Notions and a Handful of Stories." Embattled Lawrence: Conflict... and autonomy in the smartest and most-planned fashion possible. This attitude is embedded in all 19 Guide for Growth. 1. Ibid. Ibid. Ibid. 22 Draft Environmental Impact Statement, 30. 2 3 Committee, "Third Community Forum Review of Strawman Plan," 10...

Heiman, Kelly
2012-04-01

457

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

  Texas A&M University - TxSpace

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

Hastings, Charles Patrick
1997-01-01

458

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

  Texas A&M University - TxSpace

Summary: 93 d? u. ?? 4 B r 3 1 2 4 3 a? 77 G. Cw ?? ( f t ) ,-4>5.i 4Jj3?3 7 9# ? . CBk 3 I ? 4 5 ? S 71 0? ?e , . . 2k 3 can 3 * I ? 3 * 3 O 4 4e Ofi . . . J i ? 79 Z, fB B 46 I ? 3 6 3 Z ao 4c do ,3 5 * BT 4 1 4 to / s? 5 9 _&C-lk??"C ^.*1 : i...B 1 ?? i< ? ? - ,s ifrZ - BT ? i 2 ' f ? * \\4 t i J *>. . i - i ~ i ' - o D? e? .u c f.M fC L )^ - ; 4 < *^T f *>'6 . CBBTB ? 3 1 J >4 * ' ? z . d . 4...

Khuri, Fuad I.
1954-01-01

459

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

  Texas A&M University - TxSpace

Summary: utility decision theory was applied in evaluating the parameters. Promising combinations of the above factors were determined based on the existing knowledge of material combinations used for EOT PCC, coupled with our understanding of the potentials...

Shrestha, Pradhumna Babu
1999-01-01

460

A mechanistic model for the prediction of stresses, strains, and displacements in continuously reinforced concrete pavements

  Texas A&M University - TxSpace

Summary: ? ' cs)' 45 The roots of the auxiliary equation are 1 (a 2 + c 2) (a 2 ?, ' cs) (l 4 (a 2cs a 2d2) g 6 2 ? ~ 3 ? ~ ~ ~ ~ ~ u ~ iI ~ 2 ~ ! ~ 2 2 ~ r ~~ 4 2 ? g62 = 77l a = ? 7713 (45) (4S) ? (as+ c 2) 3 ' 2 3 1 ( 2 2) l ( 2 2 2d2) (4 g) (a 2... a method similar to Mains' to internally instrument the reinforcing Q C C al E O at CL ill 0 0 C EIJ 0 ttt 0 . C 0 lO Ct al 8 at td, I cd bG C at cd 0 at 4 ad Cd CQ r bD FZ O O N O O O O O IQ CI O O O e O O N...

Palmer, Richard Paul
1988-01-01

461

Design, construction, and service behavior of selected pavements in district 17 of the Texas Highway Department 

  Texas A&M University - TxSpace

Summary: -58-1119 17o58egjL1 17 58 191h 17-58-1915 17-58-1916 17 58 1017 17-58-u18 17-58-131' 3. 7 58 1121 17-58~22 17-58 112& 3oG 3. oQ 9. 5 Qo5 2o9 loG 3. o9 1. 5 2oO 2oQ lo5 1, 5 2o5 lo5 lo5 3o5 5 Ill 5n 5n 5n 5n 6n 6n 5~%(n 6 (ol )n 4... i3. 26 ft, . lie. /". , rr chat Rts Lte C/L c/r. c/r. c/r. c/r. C/L Lto c/K C/L c/L RSe rpi s Lt, 2hs Lt o c/1, rrt e Ate 3/25/58 9eO a 31 9 s 3/27/58 7o2 o s 9'g9 ico6 3/31/58 8. 5 s ' 3 8 8 lce3 8 4/2/58 8. 2...

Long, Robert Eugene
1962-01-01

462

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

  University of California eScholarship Repository

Summary: Strategic planning - Public policy making - Marketing -strategic planning, priority setting, product or process design or redesign); • selecting relevant indicators of environmental performance, including measurement techniques; and • marketing (

Santero, Nicholas
2010-01-01

463

Development of methodology for detection of defect locations in pavement profile 

  Texas A&M University - TxSpace

Summary: transportation agencies. The effectiveness of any method used to determine defect locations depends on the decrease in roughness obtained on correction of defects. Following the above line of thought a method that detects defects by comparing original profile...

Rawool, Shubham Shivaji
2005-08-29

464

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

  University of California eScholarship Repository

Summary: delay cost) based on the construction productivity and traffic analysesdelay cost) based on the construction productivity and traffic analysesAnalysis, Field Develop tools that will permit reduction of construction duration, cost, and traffic delay

Harvey, John T; Monismith, Carl L.; Nokes, William; Coetzee, N. F
2006-01-01

465

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

  Texas A&M University - TxSpace

Summary: Understanding the early age behavior of concrete is an important issue in construction of concrete structures since different factors during construction, such as design consideration, material usage, and environmental influence, can alter...

Bari, Muhammad Ehsanul
2014-04-11

466

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

  Texas A&M University - TxSpace

Summary: 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...

Shrestha, Pradhumna Babu
1999-01-01

467

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

  Texas A&M University - TxSpace

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

Ramos-Aparicio, Sonia Ines
2004-09-30

468

Evaluation of pavement base and subgrade material properties and test procedures

  Texas A&M University - TxSpace

Summary: and less expensive method of obtaining the resilient properties K, to K, and the strength parameters cohesion, C, and the angle of internal friction, $, of base and subgrade materials. This was done by developing prediction equations which use easy... to obtain material properties and by developing a modified Texas triaxial test procedure which can be used to obtain both the strength and resilient properties of these materials. Four fine grained soils, sand, lean clay, fat clay and silt and five base...

Titus-Glover, Leslie
1995-01-01

469

Field study of effects of construction procedures on concrete pavement surfaces

  Texas A&M University - TxSpace

Summary: was the burlap drag finish, decreased to a skid number value of about 25. 1. 5 Recoaxaendations Based on the results of the field study phase of this study, the following recommendations are made: l. Investigate the possibility of using the Abrasion Resist.... It is the antonym of slipperiness. It is in this sense 11 that "skid resistance" is defined for use in this study. Friction force is the resistance measured when one body comes in contact with another and is moved or being moved. In mechanics, t' he equation...

Davis, Jeffrey Leland
1973-01-01

470

A rule-based vision system for distress detection on concrete highway pavement

  Texas A&M University - TxSpace

Summary: an Expert System B. Structure of an Expert System 1. Knowledge Acquisition 2. Knowledge Representation 3. Control Strategy . . 4. Explanation Facility 5. Expert System Shell 1 2 4 4 5 6 8 8 11 11 13 13 19 19 25 25 26 28 28 29 30... Rate for Second Highway 50 FIGURE Page 20 21 22 24 25 27 29 30 Recognition of Multiple Transverse Cracks Recognition of Spalled and Transverse Cracks Recognition of Asphalt Patch and Transverse Crack . Image 1(5196) Image 2(5094) Image 3...

Tsao, Yuen Sang (Stephen)
1992-01-01

471

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

  Texas A&M University - TxSpace

Summary: protocol was developed to measure the diffusion coefficient of asphalt mixtures. This important property has not measured before. The results revealed that the air void phase within the asphalt mixtures controls the rate of moisture diffusion. The measured...

Kassem, Emad Abdel-Rahman Ahmed
2011-08-08

472

Effects of pavement markings on vehicle paths in a dual left turn 

  Texas A&M University - TxSpace

Summary: ' 11. 00' 11. 00' 11. 00' 11. 00' 11. 00' 11. 00' 11. 00' 0. 0 5. 6 11. 3 16. 9 22. 5 28. I 33. 8 39. 4 45. 0 50. 6 56. 3 61. 9 67. 5 73. I 78. 8 84. 4 90. 0 76. 0' 74. 0' 71. 0' 68. 0' 64. 0' 61. 0' 58. 0' 55. 0' 52. 0...' 50. 0' 47. 0' 46. 0' 44. 0' 44. 0' 44. 0' 44. 0' 45. 0' 9. 00" 8. 00" 7. 30" 6. 90" 6. 60" 6. 30" 6. 20" 6. 35" 6. 50" 6. 80" 7. 15" 7. 70" 8. 50" 9. 50" 10. 80" 12. 55" 14. 70" 10. 10" 9. 25" 8. 55" 8. 10" 7. 80" 7. 50...

Simmons, Kathryn Fitzpatrick
1984-01-01

473

A study of the theories of structural design of rigid airfield pavement 

  Texas A&M University - TxSpace

Summary: ' roister ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 324 " ~ 91K"ary of ASMptions ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 324. P, ~ Critical DiscnBQion of ABBlzptions ~ ~ ~ ~ ~ ~ ~ 325 D m~a ~ " '+~c v ~ ' ~ ~ ~ o ~ ~ ' v o ~ ' ~ ~ o ~ ~ ~ ~ ~ ~ ~ o lr 8 1 o i3l... Loads of '1'oday . 7 C. Basic Factors Affecting the Design of Paver-nts ~ . D. Liz1tations of the Paper . ~ ~ P ~ ~ ~ III? CERE D "3ICH 'ZH~Ci&5 ~ ~ ~ ~ ~ ~ ~ ~ ~ A. EVOluoicn Of Deeign Theeries . e . ? . B. Iheories of Analysis for Load Btrcoaas...

Khuri, Fuad Ilyas
1952-01-01

474

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

  Texas A&M University - TxSpace

Summary: in estimating life-cycle costs. It will reduce the agency's expenses in the time and effort required for conducting a LCCA. Estimating long-term maintenance cost is a core component of the LCCA. Therefore, methods developed from this project have the great...

Kim, Yoo Hyun
2012-07-16

475

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

  Engineering Websites

Summary: , 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


476

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

  University of California eScholarship Repository

Summary: thermal expansion, and concrete density), and the time of concrete fatigueand fatigue damage analysis of concrete slabs include material properties such as layer moduli, modulus of subgrade reaction, concrete coefficient of thermal

Rao, Shreenath; Roesler, Jeffery R.
2005-01-01

477

A study of load transfer capacities of four types of transverse contraction joints in concrete pavements

  Texas A&M University - TxSpace

Summary: s studied' yefleo tiem xeasnrements were taken on cash si4e of the joint an4 on the joint 4ue to stationary sn4 moving wheel loads, Sefore being subjeote4 to traffio, the eff1oienoies at maven 4ummV joints varied frov. minset to one hundre4 yex cent...

McDonald, James Newton
1957-01-01

478

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

  Engineering Websites

Summary: of stainless steel or stainless steel clad bars Typical: Dowel Bar Coating changed from fusion-bonded epoxy Projects $2 Billion construction estimates CPR ­ Cottman-Princeton Interchange From Bleigh Streee to Levick-ramp at Longshore Avenue); Rehabilitation of existing Ramp C (northbound on-ramp at Princeton Avenue); Construction


479

PAPER PREPARATION GUIDELINES FOR THE 2014 INTERNATIONAL SYPOSIUM ON PAVEMENT LIFE-CYCLE ASSESSMENT

  Energy Storage, Conversion and Utilization Websites

Summary: (http://onlinepubs.trb.org/onlinepubs/AM/InfoForAuthors.pdf). These guidelines have been adapted for authors, peer reviewers, and staff and will facilitate subsequent revision of papers for publication, programs, or procedures, the author should offer conclusions and recommendations in a way that recognizes

California at Davis, University of

480

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

  Texas A&M University - TxSpace

Summary: ratios for 2 percent cement stabilized high fines system V3 under wet conditions ??????????????... .. 247 Figure 11-1 Effect of variation of scale parameter ( ) on Weibull distribution ?? . 252 Figure 11-2 Effect of variation... of shape parameter ( on Weibull distribution ?? 253 Figure 11-3 Schematic representation of variable dynamic confining pressure stress paths in the Texas A&M protocol ..????????????25 8 Figure 11-4 Axial strain plot for well...

Salehi Ashtiani, Reza
2010-10-12

481

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

  Texas A&M University - TxSpace

Summary: should have a smooth flat surface. Cepstrum analysis is tested for its performance to separate ovelapped echoes. It is successful for synthetic traces but not helpful for real field trace. The analytical model of the radar trace is found not suitable... is shown in Fig 1. 2. 2. C O O O QP o Ol ? 10 ? 8 ? 6 -4 -2 0 2 4 6 8 10 $ = 2ss(r4/Sl sin P Fig 1. 2. 2 Antenna Radiation Pattern The pulse-echo principle of radar operation assumes that the transmitted pulse is partially reflected by each...

Lau, Chun Lok
1991-01-01

482

Von Willebrand factor: At the crossroads of bleeding and thrombosis Ccile V. Denis 1,2

  Computer Technologies and Information Sciences Websites

Summary: that circulates in plasma at a concentration of 5­10 µg/ml. VWF is also located in platelet -granules, in Weibel bridge between platelets and exposed components of the subendothelium, allowing the formation of the platelet thrombus [1]. The role of VWF is particularly important at high shear rates, as VWF is the only

Boyer, Edmond

483

Int J Hematol . Author manuscript von Willebrand factor: at the crossroads of bleeding and thrombosis

  Computer Technologies and Information Sciences Websites

Summary: at a concentration of 5 10 g/ml. VWF is also­ located in platelet -granules, in Weibel-Palade bodies of endothelial cells, and in the subendothelium. During vessel injury, VWF acts as a molecular bridge between platelets and exposed components of the subendothelium, allowing the formation of the platelet thrombus .[1 ] The role

Boyer, Edmond

484

Regulation of endometrial repair and its impact on heavy menstrual bleeding 

  Edinburgh, University of - Research Archive

Summary: 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 ...

Maybin, Jacqueline Ann
2011-11-25

485

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

  Materials Science Websites

Summary: takes the form of a swallowable capsule that can detect the fluorescent tracer dye fluorescein in blood Blood Loss . . . . . . . . . . . . . . . . . . . . . 4 1.2.2 Prior Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.2 Pharmacokinetics of an Intravenous Tracer . . . . . . . . . . . . . . . 13 2.3 Blood Tracer


486

TwoTwo--Lift ConstructionLift Construction The European ExperienceThe European Experience

  Engineering Websites

Summary: 1990) ·· Recycling the old pavementRecycling the old pavement ·· Equipment, laying the pavement and expressways1300 miles of motorways and expressways ·· 500 miles with concrete pavements500 miles with concrete pavements ·· continuous concrete paving since the fiftiescontinuous concrete paving since the fifties


487

Construction and Test Results on Dowel Bar Retrofit HVS Test Sections 556FD, 557FD, 558FD, and 559FD: State Route 14, Los Angeles County at Palmdale

  University of California eScholarship Repository

Summary: Concrete Pavements. ” California Division of Highways,Concrete Pavement Performance,” Final Report, Contract No. DTFH61-C-00053, Federal Highwayconcrete (PCC) pavements, make up a large and important portion of the state highway

Bian, Yi; Harvey, John T; Ali, Abdikarim
2008-01-01

488

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

  University of California eScholarship Repository

Summary: pavement surface, resulting in a extremely roughened surface texture.pavement surface, resulting in an extremely roughened surface texture.Surface texture Figure 1-2. Factors influencing moisture damage of asphalt pavements.

Harvey, John T; Lu, Qing
2005-01-01

489

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

  University of California eScholarship Repository

Summary: pavement surface, resulting in a extremely roughened surface texture.pavement surface, resulting in an extremely roughened surface texture.Surface texture Figure 1-2 Factors influencing moisture damage of asphalt pavements

Lu, Qing
2005-01-01

490

Peer Review Plan Date: 11/1/2012

  Environmental Sciences and Ecology Websites

Summary: Associated with Coal-Tar- Sealed Pavement. Subject and Purpose: Use of pavement sealants containing coal tar (PAHs) in settings near coal-tar-sealed pavement. The assessment found that the estimate of excess

Torgersen, Christian

491

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

  Engineering Websites

Summary: ) evaluating retroreflectivity measurement techniques for profiled and rumble stripe pavement markings; 3 enhanced stop paddles for school crossing guard use; 5) incorporating freight value into the Urban Mobility, Visibility, Pavement Markings, Traffic Signs, Schools, Pavement Management, Concrete, Hydration 18


492

HOSIN "DAVID" LEE, Ph.D., P.E. Civil & Env. Engineering Department 845 Quarry Road, Unit #210

  Environmental Sciences and Ecology Websites

Summary: . Seminars Given: Asphalt Pavement Recycling and Pavement Image Analsysis Visiting Professor (COWI Fellowship Facilities Planning, Traffic Flow Theory, Concrete and Asphalt Behavior, Construction Planning and Scheduling, Advanced Concrete and Asphalt Materials, Advanced Pavement Design, Transportation System Evaluation

Stanier, Charlie

493

MODELLING ASPHALT WITH DISCRETE AND

  Computer Technologies and Information Sciences Websites

Summary: S T R A C T Asphalt is used in many pavement constructions. During pavement con- struction the asphalt is compacted; this process is critical for obtaining a high quality, long-lasting pavement. Knowledge about

Luding, Stefan

494

BAYESIAN NETWORKS \\Lambda Judea Pearl

  Computer Technologies and Information Sciences Websites

Summary: that season, whether the pavement would get wet (X 4 ), and whether the pavement would be slippery (X 5 that the influence of seasonal variations on the slipperiness of the pavement is mediated by other conditions (e

California at Los Angeles, University of

495

Research Product 0-4186-P1 Definition of the

  Energy Storage, Conversion and Utilization Websites

Summary: with the process, a systematic and scientific approach is needed to manage the pavements. Pavement Management (PM), as opposed to pavement management, is composed of opera- tional packages, including methods, procedures, data

Texas at Austin, University of

496

Technical Report Documentation Page 1. Report No.

  Energy Storage, Conversion and Utilization Websites

Summary: of pavement systems, and (ii) developing material specifications that incorporate the geosynthetic and soil, reinforcement, soil-geosynthetic interaction, pavements, unbound base course, pullout test, confinement

Texas at Austin, University of

497

PROJECT MANUAL FOR: Parking Maintenance FY 2014

  Environmental Sciences and Ecology Websites

Summary: ..........................................................................................................01700 Division 2 ­ Site Construction Removal of existing Pavement, Concrete Curb, Sidewalk, Driveway ...............................................................................................................02235 Asphalt Concrete Pavement ............................................................................................................02910 Division 3 ­ Concrete Portland Cement Concrete

Dyer, Bill

498

Impacts of varying habitat quality on the physiological stress of spotted salamanders (Ambystoma maculatum)

  Biology and Medicine Websites

Summary: migration across forest habitat versus pavement; (3) in microhabitats that varied in soil drainage. Male salamanders migrating across pavement had elevated baseline corticosterone concentrations compared

Reed, Michael

499

M. A. Bhatti 1 Date: February 2007

  Geosciences Websites

Summary: , Fifth International Symposium on Maintenance and Rehabilitation of Pavements and Technological Control Committee, Second International Symposium on Maintenance and Rehabilitation of Pavements and Technological

Stanier, Charlie

500

Characterizing arid region alluvial fan surface roughness with airborne laser swath mapping digital topographic data

  Geosciences Websites

Summary: , desert pavement formation, soil development, and stratigraphy. Although quantifying surface roughness, desert pavement formation, soil develop- ment, and stratigraphic relationships [Wells et al., 1987; Bull

Black, Robert X.

Some links on this page may take you to non-federal websites. Their policies may differ from this site.