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原文传递 Western States Drainable PCC Pavement Workshop. Held in Sacramento, California on July 21-22, 1993. Summary Report

题名：	Western States Drainable PCC Pavement Workshop. Held in Sacramento, California on July 21-22, 1993. Summary Report
作者：	Baumgardner, R.; Pierce, L.; Way, G.; Moore, L.; Smith, K.
关键词：	Drainage; Meetings; Concrete pavements; Pavement bases; Pavement damage; Road materials; Pavement joints; Highway design; Permeability; Specifications; Aggregates; Tomography; Highway construction; Portland cement; Geotechnical engineering; Western Region(United States)
摘要：	A workshop on the subject of portland cement concrete (PCC) pavement drainage was held in Sacramento, California, with the Federal Highway Administration (FHWA) and six western states participating. Papers were presented by the participants followed by a discussion period, allowing a free exchange of information and viewpoints among those in attendance. Current practices involving the design and construction of new concrete pavements, the construction of concrete "inlays" and other methods of PCC pavement rehabilitation were covered. Most states are using a positive drainage approach in the design of such facilities. Although performance experience is limited in many western states, early observations provide considerable optimism regarding improved service life. FHWA research on some of the early projects throughout the country, provide evidence of significant extension of service life. Also, it is apparent that other pavement features, such as widened truck lanes, concrete shoulders, tie bars, and doweled joints will enhance performance and should be included in modern designs. A field trip included review of a local pavement drainage project and observing a demonstration of television inspection equipment for drain pipes and small culverts. The inspection equipment was demonstrated to be an effective tool to inspect the performance of edge drains, culverts, etc.
总页数：	158p
报告类型：	科技报告