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原文传递 Superpave: Washington DOT's Assessment and Status; Final rept

题名：	Superpave: Washington DOT's Assessment and Status; Final rept
作者：	Leahy, R. B.; Briggs, R. N.
关键词：	Asphalt pavements; Binders(Adhesives); Performance specifications; Availability; Climates; Washington(State); Field data; Pavement distress; Guidelines; Specific gravity; Rutting
摘要：	Funded by the 1987 Intermodal Surface Transportation Efficiency Act, the Strategic Highway Research Program (SHRP), was a five year, $150 million research program to improve the performance of the nation's roads by addressing four key areas: concrete and structures; highway safety and maintenance; asphalt; and long-term pavement performance. Nearly one-third of the $150 million was allocated for the study of asphalt, specifically to develop performance based specifications that would relate material properties of the binder and the mix to field performance. Superpave encompasses the products of the SHRP asphalt research. The Superpave (Superior PERforming Asphalt PAVEments) system was developed to give highway engineers and contractors the tools they need to design asphalt pavements that will perform better under extremes in temperature and traffic loads. The Superpave system consists of three interrelated elements: an asphalt binder specification; a mix design and analysis system; and performance tests and prediction models. This report is a compilation and synthesis of Washington DOT's experience with selected components and concepts of the SHRP/Superpave technology to include the following: performance graded (PG) binder usage; binder specification validation; gyratory compaction matrix; volumetric mix design; and the Superpave Shear Test (SST).
总页数：	174p
报告类型：	科技报告