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原文传递 Polymer Concrete Overlay Evaluation June 2016

题名：	Polymer Concrete Overlay Evaluation June 2016
作者：	Dahlberg, J.; Phares, B.
关键词：	Bridge deck overlays##Deck overlay performance##Polymer concrete##Overlays(Pavement)##Polymer overlay placement##Iowa##Federal Highway Administraion (FHWA)##Keg Creek Bridge##Johnson County (Iowa)##
摘要：	The objectives of this work were to document the state-of-the-practice with respect to polymer concrete overlays, document the placement of two overlays in Iowa, monitor the field performance of the overlays over a two-year period, and relate their performance to material usage and/or workmanship. The two bridges—a Johnson County, Iowa bridge over I-80 on 12th Avenue in Coralville, and the Keg Creek Bridge on Hwy 6 in western Iowa, 10 miles east of Council Bluffs—were overlaid during the summer/fall of 2013. The process by which each bridge was overlaid was similar in many ways, although a few slight differences existed. Over time, each overlay has generally performed quite well with only a few areas of exception. It is believed that these localized areas likely underperformed due to poor deck preparation, improper polymer mixing, snowplow impact, or a combination thereof.
总页数：	244
报告类型：	科技报告