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자료유형
학술저널
저자정보
저널정보
대한건축학회 대한건축학회 논문집 - 구조계 大韓建築學會論文集 構造系 第25卷 第5號
발행연도
2009.5
수록면
137 - 144 (8page)

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As recent construction of concrete buildings in accordance with the super high-rise, huge-scaled of building has been increased, these large-scaled buildings are susceptible to crack due to the thermal stress caused by production of excessive hydration heat. But the existing reduction method of hydration heat shows delay of construction period, decline of economical efficiency, and unstable product quality, a method that can more effectively control the hydration heat of concrete is needed. Thus, this paper is to investigate experimentally the engineering characteristics of concrete according to the change of a replacement rate of coarse particle cement in order to use coarse particle cement with a fineness of 1 600~2 100㎠/g that is classified during a grinding process of the OPC production. The result is that as the CC replacement rate increased, the sand percentage and the unit water content to secure an intented flow increased, and that the use amount of SP decreased. In addition, the use amount of AE to secure an intented air content did not show a special tendency and the setting time was delayed. On the other hand, as the CC replacement rate increased, the peak temperature by simple insulation decreased, and the reaching time of a peak temperature was delayed. The compressive strength was decreased proportionally. but the width of strength reduction was reduced as time passed.

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Abstract
1. 서론
2. 실험계획 및 방법
3. 실험결과 및 분
4. 결론
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