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Title |
Mechanical and Electrical Characteristics of Concrete Members Enlarged with Self-Sensing Cementitious Materials for Repair
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Authors |
이건철(Gun-Cheol Lee) ; 임건우(Geon-Woo Im) ; 임창민(Chang-Min Lim) ; 홍성원(Seong-Won Hong) ; 김영민(Young-Min Kim) |
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DOI |
https://doi.org/10.11112/jksmi.2023.27.5.139 |
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Keywords |
단면증타; 자기감지; 보수재; 탄소나노튜브 Section enlargement; Self-sensing; Repair mortar; Carbon nanotube |
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Abstract |
In this study, compressive strength and adhesion strength were measured as repair materials to evaluate the mechanical and electrical properties of compression and shear specimens with self-sensing repair materials. As a result of the experiment, the strength improvement rate of the compression test specimen was higher than the section enlargement area ratio, but the shear test specimen did not show an improvement in strength as much as the section enlargement area ratio. Compression experiments under load showed high correlation between FCR-Strain and FCR-Stress, confirming self-sensing performance. However, the shear test did not show as much correlation as the compression test. Accordingly, it is judged that the self-sensing repair material is suitable for the compression member on which the compression load acts in the building.
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