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原文传递 Evaluation of Thick Open Graded and Bonded Friction Courses for Florida.

题名：	Evaluation of Thick Open Graded and Bonded Friction Courses for Florida.
作者：	birgisson, b. roque, r. varadhan, a. thai, t. jaiswal, l.
关键词：	evaluation, mixture design, rutting resistance, cracking resistance, service life, asphalt concretes, florida, compaction
摘要：	Due to the frequency of high intensity short-duration rainfall events in Florida, vehicular hydroplaning is a serious concern, especially at the Interstate and other limited access facilities. Along with pavement cross-slope and rutting, the surface texture of an asphalt pavement plays a critical role in the prevention of hydroplaning on high-speed, multi-lane facilities. In order to minimize problems of this nature, Florida, in the mid 1970's, developed a friction course (FC-2) which was a 3/8-inch Nominal Maximum Aggregate Size (NMAS) open graded mixture (with polish resistant aggregate) placed approximately 12 inch thick. In the 1990's, the FC-2 was eventually replaced by a slight coarser open graded friction course (FC-5), which is a 12 inch NMAS mixture, placed approximately inch thick. A number of European countries, as well as several states in the US (Georgia, Oregon, Texas) have developed a 'porous friction course' which is an open graded friction course placed in thicknesses ranging from 1 14 to 2 inches thick. / NOTE:Final rept.
总页数：	u0708；230p
报告类型：	科技报告