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Field retrofit and testing of a corroded corrugated metal culvert using Glass Fiber Reinforced Polymers

项目名称：	Field retrofit and testing of a corroded corrugated metal culvert using Glass Fiber Reinforced Polymers
摘要：	Metal culverts have served as a common structural element in highway design since the mid 1950’s because of their low initial cost, ease of fabrication and simple construction method. There has been an epidemic of corrosion of metal culverts for the last decade. Such corrosion results in loss of cross-section and occasionally leads to structural failure of the culvert. Numerous failures have taken place imposing a high cost with the need to rebuild many culverts in addition to significant indirect costs associated with highway closure. Glass fiber reinforced polymers (GFRP) have become a desirable material for structural strengthening and rehabilitation over the past two decades. Prior research supported by TranSET showed that GFRP profile liner can retrofit an existing metal culvert and provide structural capacity for the corroded metal culvert to extend its service for 50-100 years. This proposal requests support for field experimentation of the above noted technology. New Mexico Department of Transportation (NMDOT) has recently allocated a field trial site. A mock road resembling a two-lane rural road with a 6- inch backfill above a 22-foot long and 24-inch diameter corroded metal culvert is being prepared by NMDOT. This project will perform field retrofit of the corroded metal pipe using the fit-in GFRP profile liner technology and will provide field monitoring of the retrofitted pipe under truck loads. It is the intention to monitor the retrofitted culvert for up to 60 days after the retrofit is complete. The implementation phase of this project includes developing a guidebook for Departments of Transportation (DOTs) with information on design method for the GFRP retrofit technology and recommendations for work force training on field implementation of this new technology in the future.
状态：	Active
资金：	160000
资助组织：	Office of the Assistant Secretary for Research and Technology
项目负责人：	Mousa, Momen
执行机构：	University of New Mexico, Albuquerque
开始时间：	20200801
预计完成日期：	20220201
主题领域：	Bridges and other structures；Highways；Maintenance and Preservation