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Title |
Effect of Multi-Walled Carbon Nanotubes (MWCNTs) Addition on Repeated Compressive Strain-Sensing Properties of Hybrid Steel and Polyethylene Fibers Reinforced Strain-Hardening Cement Composite (Hy-SHCC)
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Authors |
장아연(Ah-Yeon Jang) ; 윤현도(Hyun-Do Yun) ; 홍성원(Seongwon Hong) ; 이건철(Gun-Cheol Lee) ; 서수연(Soo-Yeon Seo) ; 박완신(Wan-Shin Park) |
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DOI |
https://doi.org/10.4334/JKCI.2022.34.2.203 |
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Keywords |
하이브리드 섬유보강 변형경화형 시멘트 복합재(Hy-SHCC); 변형감지; 자기감지; 반복압축; 다중벽 탄소나노튜브(MWCNTs) hybrid fibers reinforced strain-hardening cement composite (Hy-SHCC); strain-detecting; self-sensing; repeated compression; multi-walled carbon nanotubes (MWCNTs) |
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Abstract |
This study focused on investigating the effect of multi-walled carbon nanotubes (MWCNTs) incorporation on the compressive strain-detecting ability of hybrid steel and polyethylene (PE) fibers reinforced strain-hardening cement composites (Hy-SHCCs) under repeated compressive loading. Hy-SHCC was reinforced with combining 0.5 % steel fibers and 0.75 % polyethylene (PE) fibers at volume fraction to improve the mechanical properties and electrical conductivity of cement composite. The effect of 1.0 wt% MWCNTs addition and the magnitude of repeated compressive stress on the mechanical and self-sensing properties of Hy-SHCCs was examined. The test results proved that the addition of 1.0 wt% MWCNT improves the strain-detecting ability of Hy-SHCC under repeated compressive loading.
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