United States Department of Transportation
i
Implementation of High Performance Concrete in Washington State
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2001-12-01
[PDF-2.22 MB]
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Edition:Research Final Report
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Abstract:In this study, the performance of five typical mix designs from four different regions in Washington State is assessed. The performance characteristics that are evaluated include four durability properties: freeze-thaw durability, scaling resistance, abrasion resistance, chloride penetration, and one strength related property: compressive strength. Determination of the current level of performance of existing concrete mixes is the first step toward fully implementing performance-based specifications. Knowing the level of durability of existing mix designs will give WSDOT a starting point in defining new levels of durability for higher performance mixes. Previously, the selection of appropriate mix designs was based solely on the flexural or compressive strength of the mix. The results of this study enable mix designs to be selected by matching the performance grade with exposure conditions. A map of the state of Washington outlining freeze-thaw zones is presented to indicate exposure conditions. This may be used to match pavement performance grades with actual field conditions. Recommendations based on experimental findings and the literature review are provided for improving the durability of the mixes.
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