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Title |
Evaluation of Self-Sensing Performance of UHPC with Carbon Nanotube
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Authors |
이상훈(Sang-Hoon Lee) ; 한선진(Sun-Jin Han) ; 장범수(Beom Soo Jang) ; 김강수(Kang Su Kim) ; 서수연(Soo-Yeon Seo) |
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DOI |
https://doi.org/10.4334/JKCI.2020.32.6.505 |
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Keywords |
초고성능 콘크리트; 자기감지; 탄소나노튜브; 전기저항 변화율; 게이지 계수 ultra-high performance concrete; self-sensing; carbon nanotube; fractional change in resistance; gauge factor |
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Abstract |
In this study, a material test was conducted to investigate the self-sensing performance of ultra-high performance concrete (UHPC) with carbon nanotubes (CNTs), based on which the correlation between the damage of specimens and the fractional change in resistance (FCR) was analyzed in detail. In addition, small UHPC sensors were fabricated for practical application, and their performance was evaluated based on which gauge factors of the UHPC sensors were derived. The experimental results showed that the sectional shape of the UHPC sensor had an insignificant effect on the self-sensing performance of the sensor and that the electrodes with copper plates were more efficient to estimate the damage than were those with copper wires.
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