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Title |
A Study on Crack Healing Properties of Cement Composites Mixed with Self-healing Microcapsules
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Authors |
최연왕(Yun-Wang Choi) ; 오성록(Sung-Rok Oh) ; 김철규(Cheol-Gyu Kim) ; 남은준(Eun-Joon Nam) |
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DOI |
https://doi.org/10.11112/jksmi.2019.23.1.113 |
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Keywords |
균열 ; 치유특성 ; 시멘트 복합재료 ; 자기치유 ; 마이크로 캡슐 Crack ; Healing Properties ; Cementitious Composites ; Self-Healing ; Microcapsule |
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Abstract |
In this study, self - healing microcapsules which can be mixed directly with cement composites were prepared, and the quality and crack healing performance of cement composites with self - healing microcapsules were evaluated. In the past, it has been focused on evaluating self-healing capsules and crack healing properties. Therefore, self - healing microcapsules have been studied for their effect on the quality of cement composites when mixed with cement composites. The table flow and the air flow rate of the cement composite material mixed with self-healing microcapsules were found to have no significant influence on table flow and air volume regardless of mixing ratio. Compressive strength and splitting tensile strength tended to decrease with increasing capsule mixing ratio. As a result of evaluation of crack healing properties according to water flow, initial water permeability decreased, and reaction products were generated over time and cracks were healed.
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