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Proceedings Paper

Piezoresistance property of cement-based composites filled with carbon black and the application of it for strain sensing
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Paper Abstract

Cement-based composite filled with nanophase carbon black (CCN) was found the promising strain sensor material candidate. Experimental results showed that temperature had obviously influence on the initial resistivity of CCN, but nearly no effect on the strain-sensing property of CCN. Resistivity of CCN decreases linearly upon compressive strain, and the strain gauge factors measured under various temperatures were all about 55. Strain sensor was made with CCN and applied in concrete beam for strain monitoring, the results monitored by CCN sensor agreed well with that of strain gauge. The results of this paper suggested CCN sensor a practicable strain sensor.

Paper Details

Date Published: 12 April 2007
PDF: 7 pages
Proc. SPIE 6526, Behavior and Mechanics of Multifunctional and Composite Materials 2007, 65261N (12 April 2007); doi: 10.1117/12.715480
Show Author Affiliations
Hui-gang Xiao, Harbin Institute of Technology (China)
Hui Li, Harbin Institute of Technology (China)
Jin-ping Ou, Harbin Institute of Technology (China)

Published in SPIE Proceedings Vol. 6526:
Behavior and Mechanics of Multifunctional and Composite Materials 2007
Marcelo J. Dapino, Editor(s)

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