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Title |
The Reduction of Maximum Hydration Temperature in Cement Paste Using Calcium Silicate Hydrates and Glucose
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Authors |
문훈(Hoon Moon) ; 김형근(Hyeong-Keun Kim) ; 류은지(Eun-Ji Ryu) ; 진은지(Eun-Ji Jin) ; 정철우(Chul-Woo Chung) |
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DOI |
http://dx.doi.org/10.4334/JKCI.2015.27.3.265 |
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Keywords |
수화온도 ; 응결시간 ; 칼슘실리케이트 수화물(C-S-H) ; 포도당 ; 매스콘크리트 temperature rise ; setting time ; calcium silicate hydrate(C-S-H) ; glucose ; mass concrete |
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Abstract |
In this study, a method to reduce temperature rise due to hydration in mass concrete is investigated. It is to use retarder (glucose) for reducing heat of hydration and to use calcium silicate hydrate (C-S-H) for compensating the retardation effect due to its role as a nucleation seed. For this purpose, the temperature rise of cement paste due to hydration was measured and the effect of using both C-S-H and glucose on setting and 28-day compressive strength of mortar specimens was investigated. According to the experimental results, using C-S-H and glucose caused the reduction in the maximum temperature but accelerated the time to reach the maximum temperature compared to that of retarded cement paste using glucose. In addition, using C-S-H and glucose did not show significant effect on 28-day compressive strength of mortar specimens, indicating that the method shown in this study can be a successful alternative to control maximum temperature rise in mass concrete.
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