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原文传递 Final Report for Early-Opening-to-Traffic Portland Cement Concrete for Pavement Rehabilitation.

题名：	Final Report for Early-Opening-to-Traffic Portland Cement Concrete for Pavement Rehabilitation.
作者：	van dam, t. v. peterson, k. r. sutter, l. l. panguluri, a. sytsma, j.
关键词：	Concrete-pavements; Portland-cements.;Rehabilitation-; Highway-construction; Mixtures-; Aggregates-; Strength-; Shrinkage-; Permeability-; Traffic-control; Design-; Durability-; Cost-effectiveness; Laboratory-tests; Guidelines-; Urban-areas.
摘要：	This report contains the background information, experimental design, results, analysis, and conclusions of the study conducted under NCHRP Project 18-04B, Durability of Early- Opening-to-Traffic Portland Cement Concrete for Pavement Rehabilitation. Guidelines and recommendations for the design and construction of durable early-opening-to-traffic (EOT) portland cement concrete (PCC) mixtures for pavement rehabilitation were also developed in this study. As motorists become increasingly less tolerant of delays caused by pavement rehabilitation, state highway agencies (SHAs) have responded by adopting techniques that minimize the time of lane closure. One such technique is to use EOT rehabilitation strategies that allow work to be completed at night or during periods of low traffic. Generally, PCC used in these applications is expected to become strong enough to carry traffic within 6 to 24 hours after placement. But concerns have been raised that such high early strength materials lack durability, resulting in the need for additional lane closures to fix failing repairs.
报告类型：	科技报告