Minimize Premature Distresses in Continuously Reinforced Concrete Pavement
Record Type: DOT
Field evaluations of the performance of continuously reinforced concrete pavement (CRCP) in Texas reveal that a substantial portion of distresses is not necessarily due to structural deficiencies of CRCP; rather, many distresses appear to be due to construction and material-related issues, and, to a lesser extent, imperfections in design details. Since these distresses occur long before structural distresses develop, they are considered premature distresses. The repair of CRCP distresses is expensive and is not always effective in restoring the pavement condition. Prevention of premature distresses in CRCP is the best course of action. The most effective way to prevent or minimize premature distresses is to identify the mechanisms of distresses, develop appropriate special provisions to existing specifications or special specifications, and/or modify existing design standards. In this study, focus will be placed on identifying mechanisms of selected premature distress types primarily through field testing and data analysis. Once the mechanisms are identified, modifications will be suggested to the existing design standards and specifications. The products, in the form of revised design standards or special provisions/special specifications, could be implemented in a pilot project. The findings from field trials could be used to further enhance the revisions to design standards and specifications.
Start date: 2011/9/1
End date: 2013/8/31
Status: Active
Contract/Grant Number: 0-6687
Total Dollars: 213005
Source Organization: Texas Department of Transportation
Date Added: 05/04/2012
Index Terms: Continuously reinforced concrete pavements, Pavement distress, Pavement design, Paving, Design standards, Specifications,
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