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Mitigation Techniques for In-Service Structures with Premature Concrete Deterioration: Development and Verification of New Test Method

Jeremy T. Klahorst, Richard E. Klingner, and Michael E. Kreger

2005

This report describes part of the work associated with Texas Department of Transportation Study 4069 (“Mitigation Techniques for In-Service Structures with Premature Concrete Deterioration”). The Texas Department of Transportation is interested in developing techniques for mitigating or remediating premature concrete deterioration due to alkali silica reaction (ASR), delayed ettringite formation (DEF), or both, in order to extend the life of potentially affected structures. The parts of Study 4069 reported here consist of: a review of existing test methods for possible application to evaluate mitigation treatments; development of a new test method, if necessary; verification of the test method; application of the selected test method to evaluate mitigation treatments; and recommendations of specific treatments to mitigate premature concrete deterioration from ASR/DEF.

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