Investigaciones
RR-69-2 Filler in Asphalt Mixtures
By V.P. Puzinauskas, Asphalt Institute. Describes mineral fillers and their differing effects on asphalt paving mixtures. (Revised Edition) Contains 13 charts; 32 pages. - $12.00
RR-75-1A Asphalt Hot-Mix Emission Study
Summarizes the favorable results of an Asphalt Institute study, involving specialized sampling and testing at asphalt plants in New Jersey and North Carolina, from which it was determined that there is no serious air pollution or employee health problem resulting from the use of petroleum-derived asphalt in hot mixes. Contains photos and tables; 20 pages. - $12.00
RR-78-1 Differences Between Petroleum Asphalt, Coal-Tar Pitch and Road Tar
Written by V.P. Puzinauskas and L.W. Corbett, the report serves to identify the differences between materials quite often, and erroneously, considered as synonymous. They are shown to be different in both origin and chemical makeup. The objective of the report is better understanding of the materials and their engineering and industrial uses; 36 pages - $12.00
RR-79-1 Elastic and Fatigue Behavior of Emulsified Asphalt Paving Mixes
Written by Bernard F. Kallas, this report's objective is the better understanding of the uses and potential of emulsified asphalt in paving mixes, and toward the advantages offered by emulsions in the use of local aggregates. Covered are previous research on the subject, an outline of the study that is the report's subject, and details of the tests pertinent to emulsions used in paving mixes. Illustrated; 26 figures and 14 tables, 64 pages. - $12.00
RR-79-2 Emissions from Asphalt Roofing Kettles
Written by V.P. Puzinauskas, the report details the results of a study that was part of a continuing effort to evaluate emissions from various industrial processes involving asphalt. Information includes data on the operating temperatures of roofing kettles; fumes generated in the kettles; the opacity of asphalt fumes; chemical components of asphalt fumes; measurements of the exposure to fumes of workers constructing an asphalt membrane for a built-up roof. Illustrated; 32 pages. - $12.00
RR-80-1 Exposure of Paving Workers to Asphalt Emissions
Written by V.P. Puzinauskas, the report is a comprehensive account of a study to evaluate the compositional characteristics of asphalt emissions, and to assess the level of workers' exposure to such emissions. The sites for initial sampling were paving construction projects; 16 pages. - $12.00
RR-80-2 Properties of Asphalt Cements
Written by V.P. Puzinauskas, the report details the results of exhaustive testing of samples of asphalt cements furnished by 40 different manufacturers and representing asphalts produced in 78 refineries. A total of 211 samples of asphalt cements were received, 86 of which were selected for laboratory testing. Included were all currently-in-use viscosity and penetration grades specified by the various United States agencies; 72 pages. - $12.00
RR-81-1 Design Techniques to Minimize Low-Temperature Asphalt Pavement Transverse Cracking
The state-of-the-art report by a special committee organized by the Asphalt Institute. Included are sections covering topics such as: low temperature cracking, asphalt specifications, asphalt and mix stiffness in pavement design, design procedures, factors influencing cracking, mix stiffness at low temperatures, predicting pavement cracking temperatures; 76 pages. - $12.00
RR-82-1 Properties of Roofing Asphalts
Written by V.P. Puzinauskas, this report details a comprehensive study of the properties of asphalts used by the roofing industry. The work was done in the Asphalt Institute laboratory. Considered valuable for persons engaged in the development of specifications and quality control procedures for the production of roofing materials; 14 tables, 24 figures, 102 pages. - $12.00
RR-82-2 Research And Development of the Asphalt Institute's Thickness Design Manual (MS-1) Ninth Edition (1982)
This is a detailed account of the years of painstaking work preliminary to the production of the latest edition of the Asphalt Institute's thickness design manual, which contains a completely new and scientific design procedure that is a major departure from the empirical method formerly used. Fully complete with design tables and charts; 224 pages. - $12.00
RR-82-3 Low-Temperature Mechanical Properties of Asphalt Concrete
Written by Bernard F. Kallas, this details the results of a study undertaken to determine the influence of the several factors involved in low-temperature cracking of asphalt pavements. Included are details of the test equipment used in the study; the modulus and fracture strength of various asphalt concrete mixtures; predictions of low-temperature cracking; a cold computer program and nomograph-predicting cracking temperatures. 17 tables, 15 figures; 60 pages. - $12.00
RR-83-1 Deflection Method for Designing Asphalt Concrete Overlays for Asphalt Pavements
This is an updated version of the Research Report of the same title issued under the designation RR-69-3 and written by R. Ian Kingham. This report revised by Robert N. Jester, contains a design procedures based on research carried out in the Asphalt Institute's Structural Design Research Program. Contains 8 illustrations. 20 pages. - $12.00
RR-84-1 Kentrack: A Computer Program for Hot-Mix Asphalt and Conventional Ballast
Jointly published by the Asphalt Institute and the National Asphalt Pavement Association, this publication is authored by members of the Department of Engineering at the University of Kentucky in Lexington. It details the design of railway systems using hot-mix asphalt as an improvement to traditional ballast systems. 25 figures, six tables, 172 pages. - $12.00
RR-84-2 Flexible Pavement Mixture Design Using Reclaimed Asphalt Concrete
Written by Bernard F. Kallas, this volume was prepared to provide essential information on the design of hot asphalt mixtures for recycling. It contains evaluations of both standard Marshall and Hveem test methods, and proposed mix-design criteria, also a sampling procedure and test method to determine the properties of salvaged binders. It has 27 figures and 69 tables, 32 references and five appendices. 190 pages. - $12.00
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