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Detection of ASR damage in concrete using contactless ultrasonic scanning

Authors: John Popovics (University of Illinois at Urbana-Champaign) , Homin Song (Argonne National Laboratory)

Abstract

Here we investigate the use of contactless ultrasonic surface wave measurements to detect and characterize ASR-induced cracking damage in concrete. Observations from laboratory tests and a study on ASR concrete samples in a controlled testbed reveal that ultrasonic surface wave backscatter measurements can be used to detect and locate distributed cracking in concrete. Sub-wavelength imaging is achieved by isolating the backscatter owing to cracking from that owing to natural material homogeneity (aggregates) in the concrete through the use a frequency-wavenumber domain analysis approach.

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How to Cite: Popovics, J. & Song, H. (2019) “Detection of ASR damage in concrete using contactless ultrasonic scanning”, Review of Progress in Quantitative Nondestructive Evaluation.(0).