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Author : Deb Bischoff
Publisher :
ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.:/5 (1 download)
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 : Donna S. Harmelink
Publisher :
ISBN 13 :
Total Pages : 130 pages
Book Rating : 4.3/5 (555 download)
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 1995 with total page 130 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)
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:
Author : Jon A. Epps
Publisher : Transportation Research Board
ISBN 13 : 9780309053235
Total Pages : 172 pages
Book Rating : 4.0/5 (532 download)
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.
Author :
Publisher :
ISBN 13 :
Total Pages : 302 pages
Book Rating : 4.:/5 (1 download)
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.
Author : Harikrishnan Nair
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (137 download)
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.
Author : H. Fred Waller
Publisher : ASTM International
ISBN 13 : 0803118813
Total Pages : 304 pages
Book Rating : 4.8/5 (31 download)
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
Author : Otto J. Svec
Publisher : Transportation Association of Canada = Association des transports du Canada
ISBN 13 : 9781551871080
Total Pages : 162 pages
Book Rating : 4.8/5 (71 download)
Download or read book Utilization of Recycled Tire Rubber in Asphalt Pavements written by Otto J. Svec and published by Transportation Association of Canada = Association des transports du Canada. This book was released on 1996-01-01 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : E. Ray Brown
Publisher : Transportation Research Board
ISBN 13 : 0309088070
Total Pages : 48 pages
Book Rating : 4.3/5 (9 download)
Download or read book Relationship of Air Voids, Lift Thickness, and Permeability in Hot Mix Asphalt Pavements written by E. Ray Brown and published by Transportation Research Board. This book was released on 2004 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRB's National Cooperative Highway Research Program (NCHRP) Report 531: Relationship of Air Voids, Lift Thickness, and Permeability in Hot-Mix Asphalt Pavements provides guidance for hot-mix asphalt pavement construction designed to achieve satisfactory levels of in-place air voids and permeability. This guidance was developed from the findings of a research project that examined the relationship of air voids content to permeability and hot-mix asphalt lift thickness. The full finding of the research were published as NCHRP Web Document 68"--Publisher's description.
Author : Ludo Zanzotto
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (618 download)
Download or read book Utilization of Recycled Tire Rubber in Asphalt Pavements written by Ludo Zanzotto and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert E. Olsen
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (359 download)
Download or read book Rubber-asphalt Binder for Seal Coat Construction written by Robert E. Olsen and published by . This book was released on 1973 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Donna S. Harmelink
Publisher :
ISBN 13 :
Total Pages : 110 pages
Book Rating : 4.:/5 (1 download)
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.
Author : G. W. Maupin
Publisher :
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.:/5 (359 download)
Download or read book Field Trials of Asphalt Rubber Hot Mix in Virginia written by G. W. Maupin and published by . This book was released on 1995 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Four test sections using asphalt rubber hot mix were placed in Virginia during the period of 1990 through 1993. The purpose of these installations was to familiarize both contractors and Virginia Department of Transportation (VDOT) personnel with the construction process and compare the performance of different types of mixes containing ground tire rubber. The MacDonald and Rouse processes, both wet processes, were used successfully. Densegraded surface mixes, a gap-graded surface mix, and a base mix were manufactured. A stress absorbing membrane interlayer was also used on one project in an attempt to deter or eliminate a variety of types of cracking. The asphalt rubber mixes have performed as well as the conventional mixes over the short term. More evaluation time is needed to determine if the long-term performance of the asphalt rubber mixes is superior to that of the conventional mixes. The cost of the asphalt rubber mixes was 64 to 102 percent more than that of the conventional mixes; however, this cost would probably decrease if substantial quantities were placed. VDOT has the necessary experience to contract placement of asphalt rubber mixes if the suspended ISTEA mandate is effected.
Author : Douglas M. Marshall
Publisher : CRC Press
ISBN 13 : 113802693X
Total Pages : 1944 pages
Book Rating : 4.1/5 (38 download)
Download or read book Introduction to Unmanned Aircraft Systems, Second Edition written by Douglas M. Marshall and published by CRC Press. This book was released on 2015-10-26 with total page 1944 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proliferation of technological capability, miniaturization, and demand for aerial intelligence is pushing unmanned aerial systems (UAS) into the realm of a multi-billion dollar industry. This book surveys the UAS landscape from history to future applications. It discusses commercial applications, integration into the national airspace system (NAS), System function, operational procedures, safety concerns, and a host of other relevant topics. The book is dynamic and well-illustrated with separate sections for terminology and web- based resources for further information.
Author : Waterways Experiment Station (U.S.)
Publisher :
ISBN 13 :
Total Pages : 122 pages
Book Rating : 4.3/5 (91 download)
Download or read book Effects of Traffic with Small High-pressure Tires on Asphalt Pavements written by Waterways Experiment Station (U.S.) and published by . This book was released on 1950 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. Paul Guyer, P.E., R.A.
Publisher : Guyer Partners
ISBN 13 :
Total Pages : 84 pages
Book Rating : 4./5 ( download)
Download or read book An Introduction to Hot Mix Asphalt Pavement for Professional Engineers written by J. Paul Guyer, P.E., R.A. and published by Guyer Partners. This book was released on 2022-04-22 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introductory technical guidance for civil engineers and construction managers interested in hot mix asphalt pavement for streets and highways. Here is what is discussed: 1. GENERAL, 2. EQUIPMENT, 3. MATERIALS, 4. DENSE-GRADED HOT-MIX ASPHALT, 5. POROUS FRICTION COURSE, 6. STONE MATRIX ASPHALT.
Author :
Publisher :
ISBN 13 :
Total Pages : 144 pages
Book Rating : 4.3/5 (91 download)
Download or read book Hot-mix Bituminous Paving Manual written by and published by . This book was released on 1984 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
