详情

原文传递 Reducing congestion on the road network: Part 3 Early strength gain (rapid cure) concrete for reinstatements

题名：	Reducing congestion on the road network: Part 3 Early strength gain (rapid cure) concrete for reinstatements
责任者：	JC Nicholls and JM Prime
关键词：	not available
学科分类：	公路运输
摘要：	The use of rapid-cure concrete should help to speed up road and street works and, hence, reduce the traffic congestion from those works. A laboratory investigation shows that the strength gain of various cementitious mixtures can be accelerated so as to provide early age strengths without an excessive final strength. However, the extent of any accelerated strength gain and of the final increase varied considerably, showing that the performance depends on many things. Nevertheless, the use of rapid-cure concrete needs to be quantitatively defined before its full benefits can be utilised for the benefit of all parties. Proposals for a system of classifications and the means to gain them are discussed as well as the need for better definition of when reinstatement materials should be allowed to be overlaid and/or trafficked. The report also examines the cost benefits to be gained.
出版机构：	Transport Research Laboratory
提交日期：	19 April 2013
总页数：	57
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：	19 April 2013