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原文传递 Contributions of Performance-Graded Asphalt to Low Temperature Cracking Resistance of Pavements; Final rept

题名：	Contributions of Performance-Graded Asphalt to Low Temperature Cracking Resistance of Pavements; Final rept
作者：	Loh, S. W.; Olek, J.
关键词：	Cracking(Fracturing); Low temperature tests; Asphalt pavements; Binders(Materials); Indiana; Rheology; Bituminous concretes; Tests; Aggregates; Hot mix paving mixtures; Specifications; Extraction
摘要：	The purpose of this research was to study and evaluate the role that asphalt cracking. As part of the Strategic Highway Research Program (SHRP) new specifications for asphalt binders were developed that are based on the performance of the material. The asphalt binder graded and specified according to these new performance-based specifications is called PG binder. These new specifications are commonly referred to as Superpave (Superior Performing Asphalt Pavement) binder specifications. A section of Interstate 64 in southern Indiana was experiencing severe low temperature cracking before it was reconstructed over the summers of 1995 and 1996. The binder used in the new pavement mixes was PG material. Dynamic Shear Rheometer (DSR) tests, Bending Beam Rheometer (BBR) tests, and viscosity tests were performed on this binder. Comparisons were made between test results obtained from the binders in the old pavement and the new pavement. All tests and comparisons were based on the Superpave binder specifications.
总页数：	192p
报告类型：	科技报告