Detection of cracks in concrete composites using acoustic microscopy |
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| Authors: | P Zinin M H Manghnani Y C Wang R A Livingston |
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| Affiliation: | a School of Ocean and Earth Science and Technology, University of Hawaii, Honolulu, HI 96822, USA;b Federal Highway Administration, Turner-Fairbank Highway Research Center, McLean, VA 22101, USA |
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| Abstract: | We demonstrate that a scanning acoustic microscope (SAM) operating in the frequency range 100–400 MHz can detect cracks at the aggregate/paste interface and subsurface cracks in aggregates with high sensitivity. A complete interpretation of the obtained results has been made by combining high and low frequency acoustic microscopy, SEM, optical microscopy, and energy dispersive (X-ray) spectroscopy. |
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| Keywords: | Scanning acoustic microscope (SAM) Concrete composites |
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