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Presents a complete coverage of all aspects of the theory and practice of pavement design including the latest concepts.
"Research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration."
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Recent research on asphalt binder aging and rejuvenatorsKey data on asphalt performance and formulationsUpdates on tests and specificationsFully-searchable text on CD-ROM (included) This series volume comprises research papers and technical reports developed within the U.S.-based Association of Asphalt Paving Technologists. The book is divided into sessions focused on technology, specifications, cold recycling of RAP, and rejuvenators, with special emphasis on aging and on how rejuvenators are modeled, formulated and used to improve asphalt binders and prevent cracking. The CD-ROM displays figures and illustrations in articles in full color along with a title screen and main menu screen. Eac...
Responses to a questionnaire to the state highway departments, District of Columbia and Puerto Rico showed that: (1) 36 highway departments have problems with expansive clays or shales, and (2) 19 highway departments recognize expansive clays in pavement design criteria. General information is given regarding distribution of expansive clays in the United States, including a map showing outcrop-formations having abundant montmorillonite. A discussion of microstructure of clays and relation of soil swelling to structure and interlayer water is given. Some of the laboratory and field methods for measuring swell potential of clays, given in proceedings papers, are mentioned. 8 procedures or techniques for treating expansive soils are listed, and some are briefly discussed. Factors and characteristics that are considered in design on expansive clays are listed.
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