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Using Ground Tire Rubber In Hot Mix Asphalt Pavements
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Book Synopsis Using Ground Tire Rubber in Hot Mix Asphalt Pavements by : Donna S. Harmelink
Download or read book Using Ground Tire Rubber in Hot Mix Asphalt Pavements written by Donna S. Harmelink and published by . This book was released on 1999 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Documents the construction and performance of the research study which was initiated to address section 1038(d) of the 1991 Intermodal Surface Transportation Efficiency Act (ISTEA). The project selected to demonstrate the crumb rubber process was located on Platt Canyon (SH 75) from Bowles to C470 in the Denver metropolitan area. The project was a low volume roadway and quantities of crumb rubber introduced into the mix were minimal. This was to reduce risk in terms of premature failure and Colorado's limited experience with crumb rubber. Because of this limited experience, the "dry" process was selected. The project contained four different mix designs. A mix containing 1% [20 lb/ton (10 kg/Mg)] crumb rubber, a mix containing 1 lb/ton (0.5 kg/Mg), a mix containing 3 lb/ton (1.5 kg/Mg) and a mix which contained no rubber were placed on the project.
Book Synopsis Uses of Recycled Rubber Tires in Highways by : Jon A. Epps
Download or read book Uses of Recycled Rubber Tires in Highways written by Jon A. Epps and published by Transportation Research Board. This book was released on 1994 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis on the use of recycled rubber tires in highways will be of interest to administrators and policy-makers; pavement, materials, geotechnical, environmental, and traffic operations engineers; and research engineers involved with highway design and construction issues. Information is provided on the uses of rubber tires in asphalt paving materials as well as other uses, such as on fills and embankments, for erosion control and on railroad grade crossings. Specifically, information is included which identifies the agencies using or implementing applications for recycled rubber tires and defines the design parameters, technical and construction limitations, performance, costs, benefits, environmental limitations, specifications, and availability. This synthesis of information defines the use of recycled rubber tires in highways and is based on a review of nearly 500 references and on information recorded from state highway agency responses to a 1991 survey of practice. Updates are included for as much of the state practice information possible through 1993. The use of scrap tires for highway applications is dynamic with regard to policy and technical issues. Therefore, the reader should keep in mind that the information presented reflects the best available data at a particular time. The synthesis also identifies current research in the topic area, critical research needs, and legislative issues that affect application and use of recycled rubber tires.
Book Synopsis Tire Rubber in Hot Mix Asphalt Pavements by : Deb Bischoff
Download or read book Tire Rubber in Hot Mix Asphalt Pavements written by Deb Bischoff and published by . This book was released on 2004 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Research Council (U.S.). Transportation Research Board Publisher :Transportation Research Board National Research ISBN 13 : Total Pages :60 pages Book Rating :4.:/5 (359 download)
Book Synopsis Recycled Tire Rubber in Asphalt Pavements by : National Research Council (U.S.). Transportation Research Board
Download or read book Recycled Tire Rubber in Asphalt Pavements written by National Research Council (U.S.). Transportation Research Board and published by Transportation Research Board National Research. This book was released on 1992 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Performance of Ground Tire Rubber Modified Asphalt Mixture Overlays Over Jointed Concrete Pavements on US 60 in the Virginia Department of Transportation’s Richmond District by : Harikrishnan Nair
Download or read book Performance of Ground Tire Rubber Modified Asphalt Mixture Overlays Over Jointed Concrete Pavements on US 60 in the Virginia Department of Transportation’s Richmond District written by Harikrishnan Nair and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ground tire rubber (GTR) from scrap tires is used in asphalt mixtures (rubber modified asphalt [RMA]) for improving the performance of pavements. There are different ways to add GTR in asphalt mixtures, but the two primary methods are referred to as the “wet” and “dry” processes. The dry process incorporates GTR directly into the asphalt mixture during production (directly to the aggregates through the reclaimed asphalt pavement collar). The Virginia Department of Transportation (VDOT) has limited experience with RMA mixtures in Superpave dense-graded mixtures using the dry process, but the relative ease of mixture production makes the dry process an attractive option for RMA. In the fall of 2019, VDOT placed a dense-graded RMA mixture, SM 12.5 (GTR), on US 60 in VDOT’s Richmond District (New Kent County). This was the first use of a SM 12.5 (GTR) mixture in Virginia using the dry process method. The purpose of this study was to establish a performance baseline for a GTR modified dense-graded asphalt mixture that was designed and produced using the dry process. The US 60 project also included the use of a thin hot mix asphalt concrete overlay (THMACO) as an interlayer. An assessment of the THMACO as an interlayer was a secondary objective of the study. The study found that dry process SM 12.5 (GTR) mixture can be produced and placed with no significant field-related concerns and that the special provision developed for its use was effective. Density requirements were achieved, and the as-placed mat had excellent (very low) permeability characteristics. Laboratory performance testing showed the SM 12.5 (GTR) mixture to be more crack resistant than conventionally modified polymer (SM 12.5E) mixtures. Conventionally modified SM E mixtures had slightly better rutting performance. However, this conclusion was based on performance testing and thresholds that were developed for non-modified asphalt mixtures. Additional laboratory and field performance comparison is needed to develop mixture acceptance criteria for GTR mixtures. Further, THMACO mixtures had excellent laboratory reflective cracking resistance properties. They performed particularly well in the Texas overlay test. Grading of extracted (from the asphalt mixture) binder may not provide an accurate representation of the binder performance for the dry process GTR modified asphalt. Continued monitoring of performance will be needed to quantify any benefit of SM 12.5 (GFR) mixtures in comparison with regular SM E mixtures. The study recommends additional field trials with SM 12.5 (GTR) mixtures for performance evaluation. Further, the study recommends continued use of a THMACO as an interlayer to mitigate reflective cracking for composite pavements.
Book Synopsis An Introduction to Recycled Tire Rubber for Pavements for Professional Engineers by : J. Paul Guyer
Download or read book An Introduction to Recycled Tire Rubber for Pavements for Professional Engineers written by J. Paul Guyer and published by Guyer Partners. This book was released on 2023-01-28 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introductory technical guidance for civil engineers, highway engineers and construction managers interested in use of recycled tire rubber in asphalt concrete pavement for streets and highways. Here is what is discussed: 1. BACKGROUND, 2. SPECIFICATIONS AND TESTING OF GTR-MODIFIED ASPHALT BINDERS, 3. ASPHALT MIXTURE CONSIDERATIONS, 4. DISCUSSION., 5. SUMMARY, 6. REFERENCES, 7. GLOSSARY OF TERMS.
Book Synopsis Potential Use of Tire Rubber and Ebonite in Asphalt by : Abidin Kaya
Download or read book Potential Use of Tire Rubber and Ebonite in Asphalt written by Abidin Kaya and published by . This book was released on 1992 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Crumb Rubber Modifier written by and published by . This book was released on 1993 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Section 1038 of the Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA) contains provisions for each State to begin incorporating scrap tire rubber into their asphalt paving materials. A workshop was developed through the cooperation of highway agencies and the asphalt industry to discuss present procedures and practices for designing and constructing asphalt pavements which incorporate scrap tire rubber (crumb rubber modifier). These workshop notes were prepared from the proceedings of the 13 workshop sessions.
Book Synopsis Characterization and Implementation of Ground Tire Rubber as Post-consumer Polymers for Asphalt Concrete by : Gaylon L. Baumgardner
Download or read book Characterization and Implementation of Ground Tire Rubber as Post-consumer Polymers for Asphalt Concrete written by Gaylon L. Baumgardner and published by . This book was released on 2015 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Asphalt binder modification is a common method of improving Hot-mix Asphalt (HMA) performance by enhancing mix properties and reducing or delaying three general HMA distress types: deformation (rutting and shoving), cracking (from repeated loads and low temperatures) and general deterioration (raveling and stripping). Since the early 1960’s, a common modified asphalt alternative has employed reclaimed rubber as an economical and environmental friendly method of recycling waste tires while improving asphalt physical and mechanical properties. Pavement network deterioration combined with increasing material costs makes polymer modification of asphalt binder desirable, with reclaimed rubber from waste tires being an attractive alternative which addresses performance, economics and environmental issues. The primary objective of this dissertation is to demonstrate the importance of proper processing of all types of modified bituminous binders, whether they be virgin (e.g. styrene-butadiene-styrene (SBS) or styrene-butadiene rubber (SBR)), post-consumer polymers (e.g. ground tire rubber (GTR)) or a combination (GTR plus SBS). To achieve this four secondary objectives were identified: 1) characterize GTR using thermo-gravimetric analysis (TGA), 2) improve processing of GTR modified binders, 3) improve testing and specifications of GTR modified binders and 4) evaluate mixes containing GTR modified binders. A simple efficient instrumental, TGA, method to analyze polymers in binary rubber compounds was developed to quantify the functional polymer content available in GTR. TGA analysis provides a better understanding of the general chemical characteristics of GTR used in modification of asphalt binders for production of asphalt paving mixtures. Results are presented from efforts to optimize GTR modified binder formulations with respect to how GTR loading, GTR particle size, processing temperature and asphalt cement source affect modified binder properties and ability to meet performance graded binder specifications. These results are the basis to establish recommended processing parameters for formulation and preparation of GTR modified asphalt binders. GTR modified binders were used in: dense graded asphalt (DGA), stone matrix asphalt (SMA) and open graded friction courses (OGFC) and compared to conventional asphalt cement and styrene-butadiene-styrene (SBS) modified asphalt binders. Mixture performance evaluation with respect to binder effectiveness as it relates to the three general HMA distress types.
Author :American Association of State Highway and Transportation Officials Publisher :AASHTO ISBN 13 :1560510552 Total Pages :622 pages Book Rating :4.5/5 (65 download)
Book Synopsis AASHTO Guide for Design of Pavement Structures, 1993 by : American Association of State Highway and Transportation Officials
Download or read book AASHTO Guide for Design of Pavement Structures, 1993 written by American Association of State Highway and Transportation Officials and published by AASHTO. This book was released on 1993 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design related project level pavement management - Economic evaluation of alternative pavement design strategies - Reliability / - Pavement design procedures for new construction or reconstruction : Design requirements - Highway pavement structural design - Low-volume road design / - Pavement design procedures for rehabilitation of existing pavements : Rehabilitation concepts - Guides for field data collection - Rehabilitation methods other than overlay - Rehabilitation methods with overlays / - Mechanistic-empirical design procedures.
Book Synopsis Design and Construction of Asphalt Paving Materials with Crumb Rubber Modifier by :
Download or read book Design and Construction of Asphalt Paving Materials with Crumb Rubber Modifier written by and published by . This book was released on 1992 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document is a comprehensive overview of the terminology, processes, products, and applications of crumb rubber modifier (CRM) technology. This technology includes any use of scrap tire rubber in asphalt paving materials. In general, CRM technology can be divided into two categories--the wet process and the dry process. When CRM is incorporated into an asphalt paving material, it will modify the properties of the binder (asphalt rubber) and/or act as a rubber aggregate (rubber modified hot mix asphalt). The five concepts for using CRM discussed in the report are McDonald, PlusRide, generic dry, chunk rubber asphalt concrete, and continuous blending asphalt rubber. An experimental work plan for monitoring performance and a stack emission testing program are also included.
Book Synopsis Interaction Between Recycled Tire Rubber, Polymers and High Amount of Reclaimed Asphalt Pavements by : Salih Kocak
Download or read book Interaction Between Recycled Tire Rubber, Polymers and High Amount of Reclaimed Asphalt Pavements written by Salih Kocak and published by . This book was released on 2016 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advances in Asphalt Materials by : Shin-Che Huang
Download or read book Advances in Asphalt Materials written by Shin-Che Huang and published by Woodhead Publishing. This book was released on 2015-04-08 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: The urgent need for infrastructure rehabilitation and maintenance has led to a rise in the levels of research into bituminous materials. Breakthroughs in sustainable and environmentally friendly bituminous materials are certain to have a significant impact on national economies and energy sustainability. This book will provide a comprehensive review on recent advances in research and technological developments in bituminous materials. Opening with an introductory chapter on asphalt materials and a section on the perspective of bituminous binder specifications, Part One covers the physiochemical characterisation and analysis of asphalt materials. Part Two reviews the range of distress (damage) mechanisms in asphalt materials, with chapters covering cracking, deformation, fatigue cracking and healing of asphalt mixtures, as well as moisture damage and the multiscale oxidative aging modelling approach for asphalt concrete. The final section of this book investigates alternative asphalt materials. Chapters within this section review such aspects as alternative binders for asphalt pavements such as bio binders and RAP, paving with asphalt emulsions and aggregate grading optimization. Provides an insight into advances and techniques for bituminous materials Comprehensively reviews the physicochemical characteristics of bituminous materials Investigate asphalt materials on the nano-scale, including how RAP/RAS materials can be recycled and how asphalt materials can self-heal and rejuvenator selection
Book Synopsis Use of Waste Materials in Hot-mix Asphalt by : H. Fred Waller
Download or read book Use of Waste Materials in Hot-mix Asphalt written by H. Fred Waller and published by ASTM International. This book was released on 1993 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: In light of requirements that rubber be mixed with any asphalt used in projects receiving federal aid beginning in 1994, and the general increase in the problem of what to do with waste material, 17 papers from a December 1992 symposium in Miami discuss some of the technical and economic considerati
Book Synopsis GROUND TIRE RUBBER ASPHALT FOR DURABLE PAVEMENTS ON HEAVY TRAFFIC ROADS IN MICHIGAN'S WET-FREEZE ENVIRONMENT by :
Download or read book GROUND TIRE RUBBER ASPHALT FOR DURABLE PAVEMENTS ON HEAVY TRAFFIC ROADS IN MICHIGAN'S WET-FREEZE ENVIRONMENT written by and published by . This book was released on 2022 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract : Ground tire rubber (GTR) is a problematic waste material because it is not biodegradable. One possibility for recycling GTR is to use it as a raw material for pavement construction. GTR has attracted much attention from research institutes and the road industry because of the contribution it makes towards reducing improper waste disposal and promoting environmental sustainability. The objective of this thesis is to evaluate the performance of GTR modified asphalt mixture and styrene-butadiene-styrene (SBS) modified asphalt pavement by a dry process and evaluating the long-term aging performance of the GTR modified asphalt mixture. This thesis conducts the mix design of HMA incorporated with scrap tire rubber by dry process in the lab and determine the gradation of aggregate, asphalt binder content, moisture susceptibility results. The high-temperature rutting and stripping performance was estimated through the Hamburg wheel tracking device (HWTD). The low-temperature cracking resistance was evaluated by the Disc-shaped compact tension (DCT) test. The solvent extraction test was used to obtain the GTR-modified asphalt and polymer-modified asphalt, then the high temperature and low temperature of asphalt binder were estimated by the dynamic shear rheometer (DSR) and asphalt binder cracking device (ABCD). The field noise test was conducted after the construction. The long-term aging process for asphalt binder is pressure aging vessel (PAV), and the long-term aging process for asphalt mixture is conditioned at 85 °C for 5 days. The predicted pavement distresses were estimated based on the pavement M-E design method. The results showed that the GTR-modified asphalt mixture improve the high-temperature rutting and low-temperature cracking properties compared with the conventional asphalt mixture, after long-term aging, the GTR-modified asphalt still has the best cracking resistance compared with the conventional asphalt mixture and SBS modified asphalt mixture. In summary, the implementation of rubber technology in the project shows better high-temperature rutting and low-temperature cracking performance in asphalt pavement. Moreover, the GTR-modified asphalt mixture has comparability with polymer-modified asphalt mixture. Therefore, it is possibly acceptable to apply rubber technology to asphalt pavement when used for high-volume roads in Michigan's wet-freeze environment.
Book Synopsis Investigation and Evaluation of Ground Tire Rubber in Hot Mix Asphalt by : Roberts, Freddy L.
Download or read book Investigation and Evaluation of Ground Tire Rubber in Hot Mix Asphalt written by Roberts, Freddy L. and published by . This book was released on 1989 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Laboratory Evaluation of Recycled Tire Rubber in Hot-Mix Asphalt Paving Systems by : KR. Hansen
Download or read book A Laboratory Evaluation of Recycled Tire Rubber in Hot-Mix Asphalt Paving Systems written by KR. Hansen and published by . This book was released on 1993 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report digests individual studies by separate researchers which compared and evaluated: (1) the physical properties and aging characteristics of the asphalt-rubber and asphalt cement binders; (2) Hveem and Marshall mix design methods, and permanent deformation, low temperature cracking and fatigue characteristics for dense graded asphalt-rubber concrete (ARC) and asphalt concrete mixes; and (3) open-graded asphalt-rubber concrete friction courses.
