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논문 기본 정보

자료유형
학술저널
저자정보
손호정 (청주대학교) 한민철 (청주대학교)
저널정보
대한건축학회 대한건축학회 논문집 - 구조계 大韓建築學會論文集 構造系 第28 第6號
발행연도
2012.6
수록면
67 - 74 (8page)

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초록· 키워드

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This study is to investigate the effect of heat curing method on the temperature history and early strength development of the concrete applied for a nuclear power plant structure exposed to severe environment, up to -20 ℃. Various types of insulating methods (namely conventional form, insulating form, heating mat and heating cable) were compared to find the optimum measure for developing the required strength in such harsh environment. Thermo-couples were implemented in 6 positions in the concrete specimens and one position outside. Test results showed that under exposure of -20 ℃, for the use of the conventional form, the average temperature inside of the concrete dramatically dropped to under - 15 ℃, whereas the application of other forms maintained the concrete temperature of over 0 ℃: the application of heating cable was the highest followed by that of heating mat and insulating form. For maturity development of these concretes, the control concrete with the conventional form could not achieved the required level, 64 °D·D, but other concretes achieved the required level within 3 days. Again, the application of heating cable in this analysis was the most effective. This study compared the experimental results with a logistic model and found that the results were slightly higher for the concretes exposed to -10℃ and similar for the concrete exposed to -20℃, compared to the results obtained from the model.

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