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Proceedings Paper

Application of cement-based piezoelectric composites in acoustic emission detection for concrete
Author(s): Lei Qin; Yaping Peng; Hongwei Ren; Zongjin Li
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Paper Abstract

1-3 cement-based piezoelectric composites that have good compatibility with concrete material have been developed for health monitoring of concrete structures. Transducers made of this type of composites have been especially designed to meet the requirement of being embedded into concrete materials. In the property calibration, the transducers show broadband frequency response which is the basic requirement of acoustic emission (AE) transducers. The frequency response of the transducers made of 1-3 cement-based composites and piezoelectric ceramic are compared. Plain concrete beams with embedded 1-3 cement-based piezoelectric transducers are prepared and tested. During loading, AE events are recorded. The accumulated AE event number is analyzed with the loading history. The damage evolution of concrete beam could be monitored using the system including embedded transducers and software to record and analyze the data.

Paper Details

Date Published: 20 October 2009
PDF: 9 pages
Proc. SPIE 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering, 74930G (20 October 2009); doi: 10.1117/12.842045
Show Author Affiliations
Lei Qin, Univ. of Jinan (China)
Yaping Peng, Univ. of Jinan (China)
Hongwei Ren, Univ. of Jinan (China)
Zongjin Li, Hong Kong Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 7493:
Second International Conference on Smart Materials and Nanotechnology in Engineering
Jinsong Leng; Anand K. Asundi; Wolfgang Ecke, Editor(s)

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