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한국건축시공학회 / v.1, no.2, 2001년, pp.174-178 
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고품질 매스콘크리트 시공을 위한 배합설계 및 온도균열제어 시스템에 관한 연구
( A Study on the Mix Design and the Control System of Thermal Crack for High Quality Mass Concrete ) |
| 김선구;이상수;원철;박상준;김동석; (주)대우건설 기술연구소;(주)대우건설 기술연구소;(주)대우건설 기술연구소;(주)대우건설 기술연구소;(주)대우건설 기술연구소;
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| 초 록 |
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| This study was performed to control the thermal crack of the mat footing slab in the multi-purposed buildings. In this study, we executed the mixing design of concrete to satisfy the workability and the quality according to the site conditions. And, we evaluated quantitatively about the possibility of thermal crack by using hydration heat analysis system. Finally, we proposed the optimal mixing conditions, curing methods and curing period which all factors are considered. As a result, the optimal mixing conditions were : W/B 41%, unit binder 375kgf/$ extrm{m}^3$, FA replacement ratio 20%. Lowest thermal stress was 22.0kgf/$ extrm{cm}^2$ and at that time thermal crack index was over 1.5, when the coefficient of thermal conductivity was lowest among the curing conditions. And, the total curing time was estimated at 6.7 days according to curing steps. |
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| 키워드 |
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한국건축시공학회지 / v.1, no.2, 2001년, pp.174-178
한국건축시공학회
ISSN : 1598-2033
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200111921501272)
언어 : 한국어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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