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J. Korean Ceram. Soc. > Volume 45(6); 2008 > Article
Journal of the Korean Ceramic Society 2008;45(6): 350.
doi: https://doi.org/10.4191/kcers.2008.45.6.350
수밀성 재료에 의한 숏크리트의 수밀성에 관한 연구
강현주, 송명신, 이상국1
강원대학교 화학공학연구소
1한국원자력 안전기술원
A Study on the Watertightness of Shotcrete with Watertightness Materials
Hyun-Ju Kang, Myong-Shin Song, Sang-Kook Lee1
Research Institute of Chemical Engineering, Kangwon National University
1Korea Institute of Nuclear Safety
The use of shotcrete-sprayed concrete for the support of underground excavations was pioneered by the civil engineering. Now, for the nuclear wastes disposal plant in our country, watertightness of shotcrete is one of the very important properties. This study evaluated the watertightness of shotcrete using cement mineral accelerator with watertightness materials for the long-term watertightness. In this study, for improvement of watertightness of shotcrete, it used two types of obtainable at a store. Watertightness tests of shotcrete were performed the water absorption coefficient, permeability, porosity and hydrates variation. In a shotcrete containing watertightness materials, watertightness of shotcrete was improved about $15%{sim}65%$ rather than plain shotcrete.
Key words: Shotcrete, Watertightness, Water-absorption coefficient, Permeability, Porosity
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