Abstract
This paper discusses the use of ultrasonic methodology when studying the damage caused to cubeshaped concrete specimens by uniaxial compressive loading. It uses the time-frequency distribution of the cross-ambiguity function (CAF). An algorithm capable of computing the coefficients of the Zak transform needed to discretize the crossambiguity function is also given, together with the definition of a coefficient that permits the study of different damage mechanisms and their evolution. These provide a means of effectively measuring the extent of the resulting damage. The results of the experiment show that this methology is extremely sensitive in detecting and monitoring damge processes in concrete.
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