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原文传递 Cost Effective Bridge Deck Reconstruction in Kansas using High-Density Concrete Overlays and Asphalt Membrane Overlays. Summary

题名：	Cost Effective Bridge Deck Reconstruction in Kansas using High-Density Concrete Overlays and Asphalt Membrane Overlays. Summary
作者：	Distlehorst, J.
关键词：	Pavements##Kansas##Pavement overlays##Corrosion prevention##Delamination##Bridge decks##Cost effectiveness##Cracks##Monitoring##Surveys##Pavement tests##Federal aids##Funds##Service life##Concrete pavement overlays##
摘要：	In 1976 the Federal Highway Administration (FHWA) approved federal aid funding for experimental installations of corrosion protection for reinforcing steel in existing concrete bridge decks. Sixteen of the sixty-nine Kansas bridges with Cost Effective Overlays built between 1976 and 1987 were selected for ongoing monitoring of delaminations, cracking and corrosion potential in the reinforcing bars. As part of an experimental program, the first three installations of any of the Cost Effective applications as well as ten percent of any following installations were declared to be test bridges and were monitored intensely. The FHWA program required complete surveys of the test bridges before and immediately after overlay construction, and every two to three years thereafter. The surveys were to include measurements of corrosion potentials and delaminations on concrete overlays and resistivity readings on asphalt membrane overlays. This report records the results of this program.
总页数：	1
报告类型：	科技报告