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Proceedings Paper

Optical fiber sensor for monitoring the strain of concrete which subject to freezing and thawing test
Author(s): Kaixing Liao; Haifeng Lv; Xianglong Kong; Changsen Sun; Xuefeng Zhao
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Paper Abstract

In order to monitor the strain of concrete which caused by freeze-thaw (F-T) cycles, a novel type of white light interferometer (WLI) sensor is designed and tested. The single-mode optical fiber is embedded in the cement mortar ring as strain gauge, after that, poured the cement mortar ring into concrete cylinder. To study the feasibility of the proposed measurement, two concrete cylinders are exposed in a temperature chamber which uses to simulate the F-T environment. The strain is monitored at 15°C after every 10 cycles. Temperature compensation method is conducted to eliminate the optical fiber strain which caused by temperature. The results indicate that the monitoring method is stable and the residual strain increases with F-T cycles

Paper Details

Date Published: 27 March 2018
PDF: 5 pages
Proc. SPIE 10600, Health Monitoring of Structural and Biological Systems XII, 106002I (27 March 2018); doi: 10.1117/12.2296510
Show Author Affiliations
Kaixing Liao, Suzhou Nuclear Power Research Institute (China)
Haifeng Lv, Dalian Univ. of Technology (China)
Xianglong Kong, Suzhou Nuclear Power Research Institute (China)
Changsen Sun, Dalian Univ. of Technology (China)
Xuefeng Zhao, Dalian Univ. of Technology (China)

Published in SPIE Proceedings Vol. 10600:
Health Monitoring of Structural and Biological Systems XII
Tribikram Kundu, Editor(s)

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