Abstract
Synopsis Three non-destructive test methods have been investigated to determine their suitability as indirect methods for assessing the abrasion resistance of concrete slabs. The ultrasonic pulse velocity technique was not found to be sufficiently sensitive to variation in the concrete mix design. The surface hardness method, using the Schmidt rebound hammer, was found to be partially sensitive to factors which are known to influence the abrasion resistance of concrete. The initial surface absorption method was found to be very sensitive to these factors and was closely related to abrasion resistance of concrete as determined by an accelerated abrasion test.
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