Journal Published Online: 01 December 1994
Volume 16, Issue 2

Strength Evaluation of Concrete by Rebound Hammer and Core Testing



This paper describes the results of an extensive field investigation where the quality of in-place concrete flatwork was evaluated. Nondestructive testing (NDT) was carried out using ultrasonic pulse velocity and rebound hammer techniques to establish a correlation with compressive strengths of core tests. The rebound hammer/core correlation formed the basis of a recommendation on the acceptance or rejection of the in-situ concrete. The ultrasonic pulse velocity UPV testing was primarily used to establish concrete uniformity. Limited freeze-thaw testing was carried out to determine the potential long-term durability performance. In order to minimize the effects of surface preparation on the test results, considerable time was spent to determine the optimum grinding procedure.

Author Information

Ward, MA
University of Calgary, Calgary, Alberta, Canada
Langan, BW
University of Calgary, Calgary, Alberta, Canada
Pages: 5
Price: $25.00
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Stock #: CCA10297J
ISSN: 0149-6123
DOI: 10.1520/CCA10297J