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In-Place Concrete Strength Evaluation A Recommended Practice
This Practice contains guidelines for use when strength tests fail to meet specifications. It is based on research by the Association and others and on past experience with strength controversies. The guidelines include investigation procedures, testing methods and precautions, and assignment of responsibility. It addresses the degree of strength deficiency that warrants further evaluation; a sequence of steps to follow in the investigation; and actions that should result from the investigation along with suggestion of allocation of costs. The revisions address current requirements in industry codes and standards. Revised July 2011.
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