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Proceedings Paper

Application of self-diagnosis FRP to concrete pile for health monitoring
Author(s): Hitoshi Nishimura; Takeshi Sugiyama; Yoshiki Okuhara; Soon-Gi Shin; Hideaki Matsubara; Hiroaki Yanagida
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Paper Abstract

The function and performance of the self-diagnosis composites embedded in concrete blocks and piles were investigated by bending tests and electrical resistance measurements. Carbon powder (CP) and carbon fiber (CF) were introduced in glass fiber reinforced plastics composites to obtain electrical conductivity. The CP composite has commonly good performances in various bending tests of block and pile specimens, comparing to the CF composite. The electrical resistance of the CP composite increases in a small strain to response remarkably micro-crack formation at about 200 μ strain and to detect well to smaller deformations before the crack formation. The CP composite posses a continuous resistance change up to a large strain level near the final fracture of concrete structures reinforced by steel bars. It has been concluded that the self-diagnosis composite is fairly useful for the measurement of damage and fracture in concrete blocks and piles.

Paper Details

Date Published: 22 June 2000
PDF: 8 pages
Proc. SPIE 3985, Smart Structures and Materials 2000: Smart Structures and Integrated Systems, (22 June 2000); doi: 10.1117/12.388836
Show Author Affiliations
Hitoshi Nishimura, Chubu Electric Power Co., Inc. (Japan)
Takeshi Sugiyama, Chubu Electric Power Co., Inc. (Japan)
Yoshiki Okuhara, Japan Fine Ceramics Ctr. (Japan)
Soon-Gi Shin, Japan Fine Ceramics Ctr. (Japan)
Hideaki Matsubara, Japan Fine Ceramics Ctr. (Japan)
Hiroaki Yanagida, Japan Fine Ceramics Ctr. (Japan)

Published in SPIE Proceedings Vol. 3985:
Smart Structures and Materials 2000: Smart Structures and Integrated Systems
Norman M. Wereley, Editor(s)

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