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原文传递 The skid resistance behaviour of thin surface course systems

题名：	The skid resistance behaviour of thin surface course systems
责任者：	P G Roe and A Dunford
关键词：	not available
学科分类：	公路工程
摘要：	Proprietary thin surface course systems have been successfully used on UK trunk roads for over 10 years, providing quiet surfaces while maintaining good friction when the road is wet. However, the process of approving them focussed on compliance with existing specifications that had been derived from the properties of traditional materials such as hot rolled asphalt (HRA) and surface dressings, prevalent at the time. Collaborative research sponsored by Highways Agency (HA), the Mineral Products Association (MPA), the Refined Bitumen Association (RBA) sought to optimise requirements for thin surface course systems to maintain safety standards, further improve durability and make more efficient use of resources. Skid resistance and texture depth were monitored on a range of trial sites, constructed specifically for the project, and in-depth laboratory studies were developed to help give a better understanding of the effects observed in the field. The results from the project have made it possible to make recommendations for changes to the requirements for thin surface course systems regarding the polish resistance of aggregates and texture depth with reference to the size of coarse aggregate in use.
出版机构：	Transport Research Laboratory
提交日期：	29 November 2012
总页数：	62
报告类型：	科技报告
资源类型：	科技（咨询、行业）报告
初始创建时间：	29 November 2012