United States Department of Transportation
i
Performance of Concrete Overlays over Full Depth Reclamation
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2023-03-01
[PDF-8.07 MB]
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Edition:Final Report
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Abstract:Concrete overlays of full depth reclamation (FDR) are a pavement rehabilitation option involving reclamation of existing pavement layers while providing a new concrete surface to the roadway. This report reviewed nine concrete overlays of FDR that have been constructed in three states since 2006. Design and construction details were collected for each project and performance was analyzed through automated pavement condition data. Additional distress surveys and testing, including falling weight deflectometer (FWD) testing, were performed at one project in Freeborn County, MN, to further characterize the pavement condition and structural properties. Overall, the projects reviewed in this study were performing well to date, and concrete overlays of FDR appear promising as cost-effective, sustainable tools for helping agencies maintain their pavement network.
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