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논문 기본 정보

자료유형
학술저널
저자정보
Moon Kwan Choi (Korea Institute of Limestone and Advanced Materials) Ki-Yeon Moona (Korea Institute of Limestone and Advanced Materials) Jin-Sang Cho (Korea Institute of Limestone and Advanced Materials) Kye Hong Cho (Korea Institute of Limestone and Advanced Materials) Ji-Whan Ahn (Korea Institute of Gecoscience and Mineral Resources) Soon-Chul Ur (Korea National University of Transportation)
저널정보
한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research 제18권 제9호
발행연도
2017.9
수록면
659 - 665 (7page)
DOI
http://dx.doi.org/

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초록· 키워드

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In the present study, to improve the properties of Mg-based hydraulic lime prepared by using Korean low-grade dolomite,inorganic admixtures such as silica fume and gypsum were mixed with the dolomite, and the properties of the resultinghydraulic lime were evaluated depending on the amount of admixtures and the curing time. The silica fume mixing ratio was10%, 20%, and 30%, and the gypsum mixing ratio was 0% and 3%. The samples, prepared as a paste and a mortar, werecured at a temperature of 20 oC and a humidity of 95% for 3, 7, 28, 56, and 91 days. The hydration characteristics and thephysical properties of the samples at each curing time were evaluated. The experimental results showed an increase of C-SHproduction was increased with increasing silica fume mixing ratio and curing time. The quantity of C-S-H produced wasgreater in the samples prepared without mixing gypsum. The measurement of the compressive strength showed that thestrength was decreased at a silica fume mixing ratio higher than a certain level regardless of the mixing of gypsum. Thestrength was less decreased in the samples prepared by mixing gypsum. The best properties were found in the sample preparedby mixing 20% silica fume and 3% gypsum.

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