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Long Term Performance Evaluation Of Polymer Modified Asphalt Concrete Pavements
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Book Synopsis Long-term Performance Evaluation of Polymer-modified Asphalt Concrete Pavements by : William E. Elmore
Download or read book Long-term Performance Evaluation of Polymer-modified Asphalt Concrete Pavements written by William E. Elmore and published by . This book was released on 1993 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: Following the five-year study performed to investigate the behavior of binders and asphalt mixtures containing polymer modifiers, it was determined that an insufficient amount of time had elapsed to allow any determinations to be made based upon the special field test sections. The study reported herein was to extend that initial time and to study in depth those special test sections, using visual observations coupled with resulting tests performed on samples extracted from the sections and comparisons with the original data developed in the original research. The research includes laboratory testing of field samples, determining the aging effect on the control and modified binders and corresponding effect on the mixtures, and visual evaluations. Retained samples of the original asphalts were also evaluated for potential performance as determined by the performance-based asphalt binder specification developed by the Strategic Highway Research Program. Four hot mix pavement field projects were constructed in the Tyler, Lufkin, San Antonio, and Childress Districts (10, 11, 15, and 25, respectively), and two seal coat projects were placed in the Odessa and Bryan Districts (6 and 17).
Book Synopsis Polymer Modified Asphalt Binders by : Kenneth R. Wardlaw
Download or read book Polymer Modified Asphalt Binders written by Kenneth R. Wardlaw and published by ASTM International. This book was released on 1992 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: "ASTM Publication Code Number (PCN) 04-011080-08. - "Sponsored by ASTM Committee D-4 on Road and Paving Materials."-- Foreword. - Includes bibliographical references and indexes. - Electronic reproduction; W. Conshohocken, Pa; ASTM International; 2011; Mode of access: World Wide Web; System requirements: Web browser; Access may be restricted to users at subscribing institutions.
Book Synopsis Laboratory and Field Performance Evaluation of Pavement Sections With High Polymer-Modified Asphalt Overlays by : Jhony Habbouche
Download or read book Laboratory and Field Performance Evaluation of Pavement Sections With High Polymer-Modified Asphalt Overlays written by Jhony Habbouche and published by . This book was released on 2021 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2014, researchers at the Virginia Transportation Research Council initiated a study to evaluate the effectiveness of using high polymer-modified (HP) binders in surface asphalt concrete (AC) mixtures. The results were promising enough to support a field study investigating the use of HP binders in asphalt mixtures over jointed concrete pavement. Since 2015, HP AC overlays have been placed at several sections over existing jointed concrete pavement and cracked asphalt pavements in an effort to mitigate reflective cracking. The purpose of this study was to assess the viability of using HP AC mixtures in Virginia as a reflective crack mitigation technique or when deemed appropriate as a tool for increased crack resistance on higher volume facilities. Information on the state of the practice and lessons learned from the use of HP AC mixtures in the United States and Canada are also provided. In general, HP AC mixtures have been used in a wide range of applications under heavy traffic on interstates and slow-braking loads at intersections. No major field-related construction issues in terms of mixing temperatures and in-place compaction of HP AC mixtures were reported and standard construction practices and equipment were used. Good communication between the polymer/binder supplier and the contractor and solid planning prior to the work being conducted were important lessons learned with regard to paving with HP AC mixtures. The performance characteristics of conventional polymer-modified asphalt (PMA) and HP field-produced mixtures were evaluated in the laboratory in terms of durability and resistance to rutting and cracking. Based on the mixtures tested in this study, HP AC mixtures showed better performance when compared with PMA mixtures regardless of the mixture type (dense-graded surface mixtures and stone matrix asphalt [SMA]). Moreover, SMA mixtures showed better performance when compared with surface mixtures regardless of the asphalt binder type (PMA and HP). Overall, SMA-HP mixtures showed the most promising performance among all evaluated PMA and HP mixtures. Distress survey data collected from VDOT’s Pavement Management System of HP field sections were compiled, documented, and compared with that of their control PMA sections. The HP sections showed the most promising performance 5 years after construction (2015-2020) regardless of the traffic level and the pre-existing pavement conditions. In general, none of the evaluated mixtures (HP or PMA) was able to stop reflective cracking totally. Moreover, performance evaluations using the network-level pavement management data were conducted to estimate the life expectancy of HP AC overlays. Overall, PMA and HP AC overlays had an average predicted service life of 6.2 and 8.3 years, respectively, indicating a 34% extension of performance life of the AC overlays with HP modification. The study recommends continued assessment of the as-constructed properties in future HP projects for the purpose of compiling a materials characterization database. Further, the performance of all existing and future HP sections should be monitored. This will help in updating and revising the service life prediction models and the cost-effectiveness of using HP AC mixtures as the existing sections continue to age and more data are available. Finally, the use of the balanced mix design approach should be investigated to promote further the design of more durable and longer-lasting PMA and HP mixtures in Virginia.
Book Synopsis Performance of Polymer Modified Hot Mix Asphalt Pavements by : Randy L. Battey
Download or read book Performance of Polymer Modified Hot Mix Asphalt Pavements written by Randy L. Battey and published by . This book was released on 2004 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Longterm pavement performance information management system pavement performance database user reference guide by :
Download or read book Longterm pavement performance information management system pavement performance database user reference guide written by and published by DIANE Publishing. This book was released on with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Polymer Modified Asphalt in Hot Mix Pavements by : Charles Ifft
Download or read book Evaluation of Polymer Modified Asphalt in Hot Mix Pavements written by Charles Ifft and published by . This book was released on 1989 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer modified asphalts have recently been the focus of much attention in the U.S. due to claims that polymer additives will lengthen the life of an asphalt pavement. Much of the published research on this topic has been concentrated on the effects of polymer modifiers on binder and mixture properties. The goal of this testing is to predict from laboratory testing the actual field performance of an asphalt concrete. Over the years, specifications have been developed for conventional asphalts that allow pavement performance to be predicted from certain binder tests. These conventional binder tests do not fully address the special characteristics of polymer modified asphalt binders and need revision to be an effective tool in predicting pavement service life. This paper presents the findings of a two-part laboratory research program intended to relate binder and mixture properties of polymer modified asphalts. The preliminary testing involved five asphalt binder types and a variety of binder and mixture tests. Promising test procedures were further investigated in the final testing program where ten asphalt binders were examined. Simple linear regression was used to determine the strength of a relationship between pairs of binder properties and mixture properties. The preliminary testing showed penetration, toughness and tenacity, and force ductility to have the most promise in predicting mixture performance. The final testing contained enough data to be analyzed with both simple linear regression and multiple regression. Penetration, toughness and tenacity, force ductility again were the test procedures that had binder properties that correlated well with mixture properties.
Book Synopsis Pavement Performance and Life-cycle Cost Evaluation of a Polymer Modified Asphalt Cement by :
Download or read book Pavement Performance and Life-cycle Cost Evaluation of a Polymer Modified Asphalt Cement written by and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A pavement performance and life-cycle cost evaluation of a polymer modified asphalt cement Styrelf) has shown technical advantages and cost savings. The evaluation involved seven Ontario asphalt concrete pavements, representing various traffic and climatic conditions, placed between 1987 and 1992. A surface distress survey was completed for representative sections with the polymer modified asphalt cement and control sections with conventional asphalt cement. Rut depth was determined from transverse profiles. The surface distress information was analyzed using the American Public Works Association PAVER procedures to determine the Pavement Condition Index for each section. This information was used to model the pavement condition through a 30 year analysis period. Life-cycle costing was completed to determine the present worth of the construction, maintenance and rehabilitation costs. The pavement performance modelling indicated the polymer modified asphalt cement extended the pavement service life by about 4 to 6 years compared to conventional asphalt cement. This service life extension was confirmed by testing representative asphalt concrete cores in the Nottingham Asphalt Tester, which indicated improved rutting resistance and increased fatigue life. The results of the life-cycle cost analysis showed significant life-cycle cost savings for pavements incorporating polymer modified asphalt cement mixes. For the covering abstract of this conference see IRRD number 872978.
Book Synopsis Special Polymer Modified Asphalt Cements by : Donna S. Harmelink
Download or read book Special Polymer Modified Asphalt Cements written by Donna S. Harmelink and published by . This book was released on 1997 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study evaluated and compared the effectiveness of polymer-modified asphalt mixes in improving the performance of the roadway in relation to rutting and cracking as compared to our standard mixes without modified binders. The addition of various polymers used in this study did not enhance the rut resistance potential of the mix, however the addition of the polymer did reduce the amount of transverse and longitudinal cracking to some extent.
Book Synopsis Evaluation of Polymer Modified Asphalt in Hot Mix Pavement by : David F. Rogge
Download or read book Evaluation of Polymer Modified Asphalt in Hot Mix Pavement written by David F. Rogge and published by . This book was released on 1988 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Highly Polymer-Modified Asphalt Mixtures: Phase I by : Benjamin F. Bowers
Download or read book Evaluation of Highly Polymer-Modified Asphalt Mixtures: Phase I written by Benjamin F. Bowers and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflective cracking in asphalt overlays placed over jointed concrete pavement has been a concern of the Virginia Department of Transportation (VDOT) for years. Although there are many techniques to delay crack propagation through an asphalt overlay, they may require specialized equipment, unique mix designs, or other specific mixture additives. The introduction of highly polymer-modified (HP) binders to the market brings forward a new potential crack mitigation method requiring only the use of the HP binder in an asphalt mixture to provide mitigation. Before asphalt mixtures with HP binder were used on a jointed concrete overlay project, a trial project to evaluate the constructability and laboratory performance of a mixture using this type of binder was conducted. The trial project compared an asphalt surface mixture with an HP binder and a standard surface mixture (control) in a mill and resurfacing pavement project in a subdivision in Northern Virginia. The asphalt surface mixture with the HP binder was found to be constructible without major changes in paving operations; in addition, the laboratory performance was equivalent or superior to that of the control mixture. The results were promising enough to support investigating the use of HP binders in asphalt mixtures over jointed concrete as a reflective crack mitigation technique or when deemed appropriate as a tool for increased crack resistance. The study recommends that VDOT consider the use of asphalt mixtures with HP binders as a tool for increased crack resistance when deemed appropriate by the appropriate VDOT decision maker (e.g., the district materials engineer). The study also recommends that the Virginia Transportation Research Council and the VDOT districts with concerns about reflective cracking potential in asphalt overlays investigate the use of HP mixtures as a reflective crack mitigation layer.
Book Synopsis Durability and Performance Characteristics of Hot Mix Asphalt Containing Polymer Additives by : Robert Y. Liang
Download or read book Durability and Performance Characteristics of Hot Mix Asphalt Containing Polymer Additives written by Robert Y. Liang and published by . This book was released on 2001 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ohio Department of Transportation has adopted the hot mix asphalt concrete containing polymer modifiers for use in the interstate highway pavement. Among the various reasons cited for the adoption of polymer modifiers are the favorable field experiences by ODOT, extensive literatures reporting enhanced performance, such as rutting resistance, low temperature thermal cracking resistance, and possibly fatigue endurance. However, despite these favorable findings, there are still cases involving premature failure of hot mixtures containing polymer modifiers. Concerns regarding optimum polymer content, compatibility between polymer additives and asphalt cement, proper mixing and compaction procedure remain to be resolved. Furthermore, performance based specifications to ensure production of desirable final asphalt concrete product require additional development. Questions regarding the suitability of Superpave binder testing procedures for the polymer-modified binders need to be clarified.
Book Synopsis Progress of Superpave (superior Performing Asphalt Pavement) by : Robert N. Jester
Download or read book Progress of Superpave (superior Performing Asphalt Pavement) written by Robert N. Jester and published by ASTM International. This book was released on 1997 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: A major result of the research conducted under the Strategic Highway Research Program from 1987 to 1993 was the development of the Superpave (Superior Performing Asphalt Pavement) system for the comprehensive design of asphalt pavements. These 14 contributions describe the experience to date in the
Book Synopsis Polymer Modified Asphalt Durability in Pavements by :
Download or read book Polymer Modified Asphalt Durability in Pavements written by and published by . This book was released on 2007 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: The project was designed to develop (1) a better quantitative understanding of the relation between laboratory accelerated binder aging and field aging, (2) a test procedure to measure properties of an aged binder that relate to failure on the road and (3) a proposed specification for estimating the relative durability of binders in the presence of oxidative aging. Tests were conducted on original base and polymer modified binders, laboratory compacted mixtures, and pavement aged binders. The project necessarily evolved to a more comprehensive approach to improving pavement service life.
Book Synopsis Evaluation of the Performance of the Modified Polymer in Asphaltic Concrete by : Khader Abu Al-eis
Download or read book Evaluation of the Performance of the Modified Polymer in Asphaltic Concrete written by Khader Abu Al-eis and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Long-Term Performance of High Recycled Asphalt Pavement (RAP) Mixes and Development of Models for RAP Binder Contribution and Aging by : Logan Dale Cantrell
Download or read book Evaluation of Long-Term Performance of High Recycled Asphalt Pavement (RAP) Mixes and Development of Models for RAP Binder Contribution and Aging written by Logan Dale Cantrell and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recycled asphalt pavement (RAP) is one of the most recycled materials in the United States. It provides many environmental and economic benefits, but RAP usage has stagnated recently. The advancement in rejuvenators and performance testing renews the ability to increase RAP levels and address cracking concerns. This study investigated the use of RAP in asphalt concrete and if it could be increased beyond current limits without adversely affecting long-term performance. These results provide evidence and tools for increasing RAP both in the mix design and production stages. Additionally, the models developed can make implementing performance testing in production much more feasible. Field constructability and performance were first evaluated to ensure current high RAP (HR) mixes are performing adequately. This systematic approach found that HR mixes performed equal or better than low RAP (LR) typical mixes with lower density deviation and less longitudinal cracking. Then, super high RAP (SHR) mixes, with RAP levels up to 100%, were designed using current WSDOT volumetric design standards. SHR mixes were statistically similar in rutting and cracking performance to typical 20% RAP mixes except for polymer modified binder mixes with RAP levels above 80% due to an overall reduction in polymer and degradation of polymer cross-linking. Cracking performance could be improved with the slight addition of a virgin binder. With SHR mixes showing potential, models based on mix mechanics were developed to aid in implementation. First, a model to predict RAP binder contribution (PRBC) was developed based on mix performance testing. Lab results showed that the mix with a neat virgin binder with softer RAP contributed more than the modified virgin binder with stiffer RAP. The model was then adjusted for use with plant mixes and showed HR mixes, and V binders with more PRBC than LR mixes and H binders. An aging model was then developed to predict cracking performance as a mix aged. Next, a logarithmic-based model was chosen to predict aged CTIndex results, which characterizes both oxidative aging and polymer degradation. Finally, a 3D model was created to predict the effects of both RAP addition and aging on CTIndex samples.
Book Synopsis Long-term Performance Assessment of Asphalt Concrete Pavements Using the Third Scale Model Mobile Loading Simulator and Fiber Reinforced Asphalt Concrete by : Sugjoon Lee
Download or read book Long-term Performance Assessment of Asphalt Concrete Pavements Using the Third Scale Model Mobile Loading Simulator and Fiber Reinforced Asphalt Concrete written by Sugjoon Lee and published by . This book was released on 2003 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keywords: Fatigue, Performance, MMLS3, Asphalt Concrete, Fiber Reinforced Asphalt Concrete, Nylon, Algorithm, Rutting.
Author :European Conference of Ministers of Transport Publisher :OECD Publishing ISBN 13 :9264008586 Total Pages :116 pages Book Rating :4.2/5 (64 download)
Book Synopsis Economic Evaluation of Long-Life Pavements Phase 1 by : European Conference of Ministers of Transport
Download or read book Economic Evaluation of Long-Life Pavements Phase 1 written by European Conference of Ministers of Transport and published by OECD Publishing. This book was released on 2005-03-18 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: With maintenance costs accounting for a large proportion of road budgets, this report assesses the economic and technical feasibility of innovative wearing courses for long life road pavements. While having higher initial costs, such wearing courses ...
