详情

Evaluation of Thin Polymer Overlays for Bridge Decks

项目名称：	Evaluation of Thin Polymer Overlays for Bridge Decks
摘要：	Thin composite polymer overlays are a cost-effective method for extending the service life and serviceability of concrete bridge decks by filling concrete cracks and increasing skid resistance. The overlay is a thin (1/4 to 1/2 inch) layer of polymer that seals existing cracks and is embedded with aggregate for wear and skid resistance. The Montana Department of Transportation (MDT) has recently observed varying performance of two different polymer overlay systems applied to four different bridge decks across the state. This research proposes to assess the performance of thin polymer overlays on concrete bridge decks in Montana. The project includes a literature review, a review of the polymer systems on MDT’s qualified product list and recent skid resistance data for two of these materials. The project also includes the implementation of an expanded and focused field investigation to measure skid resistance and durability of selected polymer systems. The anticipated product of this research will be an updated process for selecting and utilizing thin polymer overlays to increase the service life of bridge decks in Montana.
状态：	Active
资金：	$74,604
资助组织：	Montana Department of Transportation
项目负责人：	Callejas, Vaneza
执行机构：	Wiss, Janney, Elstner Associates, Incorporated
开始时间：	20200122
预计完成日期：	20230331
主题领域：	Bridges and other structures；Maintenance and Preservation