Use of Stress Wave to Evaluate the Repair Quality of Concrete Crack

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Abstract

The objective of this paper is to develop a nondestructive test technique based on stress wave propagation for evaluating the repair quality of concrete. Concrete structures frequently exist various types of cracks due to inferior environment and excessive loading. There are several crack repairing technique used in concrete construction. Epoxy-injection is the one used mostly in crack repairing. In this paper, a newly developed technique based on the stress wave was used to evaluate the repair quality of concrete crack. Numerical results show that the stress wave propagation of the impact-echo tests is capable of identifying the infill of epoxy-injection in the crack of repaired structures. The new technique under development has a high potential for evaluation of the quality of the repaired cracks.

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Hsu, K. T., Cheng, C. C., Chiang, C. H., & Wang, H. H. (2017). Use of Stress Wave to Evaluate the Repair Quality of Concrete Crack. In MATEC Web of Conferences (Vol. 138). EDP Sciences. https://doi.org/10.1051/matecconf/201713802019

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