Wave-Guided Acoustic Emission Signals of Concrete Slab Obtained by Fatigue Testing on Wheel-Load Machine

Wave-guided acoustic emission (AE) signals of a reinforced-concrete slab were evaluated by fatigue testing on a wheel-load machine. Two resonant AE sensors, each with a frequency of 60 kHz, were installed at both ends of a reinforcement rod used as an AE waveguides. The detected AE signals indicated...

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Bibliographic Details
Published inJournal of disaster research Vol. 12; no. 3; pp. 470 - 477
Main Authors Shiwa, Mitsuharu, Li, Zhengwang, Maeshima, Takuya, Koda, Yasuhiro, Tanaka, Yasushi
Format Journal Article
LanguageEnglish
Published 01.06.2017
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Summary:Wave-guided acoustic emission (AE) signals of a reinforced-concrete slab were evaluated by fatigue testing on a wheel-load machine. Two resonant AE sensors, each with a frequency of 60 kHz, were installed at both ends of a reinforcement rod used as an AE waveguides. The detected AE signals indicated the transverse-wave radiation patterns of vertical and horizontal cracks located at the interface between the concrete and the waveguide. The activity of the cumulative AE energies corresponded to the live-load deflection and vertical-strain phenomena.
ISSN:1881-2473
1883-8030
DOI:10.20965/jdr.2017.p0470