Download or read book Study of Asphalt Cement Additives and Extenders written by Ralph Haas and published by . This book was released on 1983 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of Asphalt Cement Additives and Extenders written by Pavement Management Systems and published by . This book was released on 1983 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Use of Antistripping Additives in Asphaltic Concrete Mixtures written by David G. Tunnicliff and published by Transportation Research Board. This book was released on 1995 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Additives and Extenders for Asphalt Cements written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings for the Tri Regional Pavement Rehabilitation Conference May 14 17 1984 Oklahoma City Oklahoma written by and published by . This book was released on 1984 with total page 924 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laboratory Study of Test Methods for Polymer Modified Asphalt in Hot Mix Pavement written by and published by . This book was released on 1989 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extension and Replacement of Asphalt Cement with Sulfur written by and published by . This book was released on 1978 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: The potential shortage of asphalt cement and over supply of sulfur make it advantageous to reduce the dependence of the paving industry upon asphalt cement while utilizing readily available sulfur. This report presents the results of an investigation of the use of elemental sulfur as a partial replacement and/or extender of asphalt cement in highway paving mixtures. Physical properties of numerous combinations of sulfur-asphalt emulsions were determined. Various aggregates, asphalt cements, and sulfur were tested in a series of laboratory screening tests utilizing nine independent design variables. Characterization tests were performed on selected combinations of aggregate, asphalt and sulfur utilizing three different mixing methods. The resulting relationships between response characteristics, mixture compositions, and design variables were programmed into the Texas FPS-BISTRO and VESYS IIM design programs.
Download or read book Extension and Replacement of Asphalt Cement with Sulfur written by United States. Federal Highway Administration. Office of Research and published by . This book was released on 1978 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The potential shortage of asphalt cement and oversupply of sulfur make it advantageous to reduce to dependence of the paving industry upon asphalt cement while utilizing readily available sulfur. This report presents the results of an investigation of the use of elemental sulfur as a partial replacement and/or extender of asphalt cement in highway paving mixtures. Physical properties of numerous combinations of sulfur-asphalt emulsions were determined. Various aggregates, asphalt cements, and sulfur were tested in a series of laboratory screening tests utilizing nine independent design variables. Characterization tests were performed on selected combinations of aggregate, asphalt and sulfur utilizing three different mixing methods. The resulting relationships between response characteristics, mixture compositions, and design variables were programmed into the Texas FPS-BISTRO and VESYS IIM design programs.
Download or read book Study of Hot Mix Recycling of Asphalt Pavements written by Frank Meyer and published by . This book was released on 1983 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interest in hot mix recycling has recently been stimulated by:rising cost of asphalt cement and fuels; depletion and risingcosts of readily available conventional aggregate resources; theneed to reduce energy consumption; reduction in available fundsfor transportation facilities due to inflation; and, environmental problems due to mining of aggregate materials. Since hot mix recycling can offer advantages in all these areas, the overall objective of this project is to encourage the use ofthis cost and energy efficient strategy in the rehabilitation andmaintenance of pavements in the national road system.
Download or read book Asphalt Additives Study written by Kathleen T. Diringer and published by . This book was released on 1985 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book World Highway Report written by and published by . This book was released on 1979 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Use of High Pressure Liquid Chromatography to Determine the Effects of Various Additives and Fillers on the Characteristics of Asphalt written by P. W. Jennings and published by . This book was released on 1982 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project dealt with the molecular composition of asphalts and with the changes in asphalt composition that have been found to result from the inclusion of aggregate, additives, fillers and extenders in bituminous paving mixtures under normal production conditions in Montana. The method used in this project was high pressure liquid chromatography in the gel permeation mode. Changes in the molecular size distribution (MSD) of an asphalt, under carefully controlled laboratory processing, were shown to depend not only upon the specific asphalt, but also upon the aggregate, the additive, the mixing temperature and the time held at that temperature. Consequently, the MSD of the asphalt in a finished pavement cannot be predicted from the MSD of the original asphalt cement alone. A test method was developed, however, to simulate the net effect of plant mix processing, thus yielding an accurate prediction of the final MSD. In a continuing sub-study on asphalt 'aging', the molecular size characteristics of asphalts in highway pavements were shown to undergo only very minor changes after approximately two years. Earlier predictions of pavement performance, based on molecular profiles of asphalts from core samples removed soon after construction, were actually borne out in two cases that were major paving projects. Several recycling agents were shown to consist mainly of very small molecular size materials. When mixed with salvaged bituminous material, they appeared to be inadequate to compensate for, or to otherwise change, excessive amounts of large molecular size (LMS) material often found in the salvaged asphalt. In another common method of recycling, it was found that the MSD of a mixture of asphalts can be estimated from the MSDs of the individual asphalts and their proportions in the mixture. As an example, a salvaged asphalt containing an excessive amount of LMS material may be modified with a virgin soft asphalt (i.e., 200-300 penetration grade asphalt with few LMS components) so that the resulting mixture closely matches the model for high quality asphalt cement.
Download or read book Transportation Research Record written by and published by . This book was released on 2000 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characteristics of Asphalt Binders written by and published by . This book was released on 1996 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin written by Alberta Research Council and published by . This book was released on 1975 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
