Proceedings of the Korean Institute of Building Construction Conference (한국건축시공학회:학술대회논문집)
- 2012.11a
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- Pages.51-53
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- 2012
Temperature History of Concrete exposed to Extremely Cold Weather with the Variation of Capacity of Heating Coil
열선 전력 용량에 따른 극한온도 조건에서의 콘크리트 온도이력 특성
- Jung, Eun-Bong ;
- Jung, Sang-Hyeon ;
- Ahn, Sang-Ku ;
- Ko, Gyeong-Taek ;
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Han, Min-Cheol
;
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Han, Cheon-Goo
- 정은봉 (청주대학교 건축공학과) ;
- 정상현 (POSCO 건설 토목연구그룹) ;
- 안상구 (POSCO 건설 토목연구그룹) ;
- 고경택 (건설기술연구원) ;
-
한민철
(청주대학교 건축공학과)
;
-
한천구
(청주대학교 건축공학과)
- Published : 2012.11.16
Abstract
This paper is to report the results of mock-up test for concrete during severe cold weather. The temperature is fixed at -20℃. The mock-up specimens were fabricated simulating slab, wall and column. Heating coil with different heat capacity with 5 W and 15 W were embedded at slab specimen. Test results revealed that at -20℃, temperature dropped below 0℃ since around 70 hours. It takes 7 days to gain 45°D·D of maturity for avoiding frost damage at early age.