Earticle

초록

영어

This study investigates the effectiveness of cold weather concreting with various form types, applied in column placement. For the properties of temperature history with diverse form types, specimens using steel plate or wooden form indicated under 0〫 C in 20 hours at curing room, especially; concrete using steel plate directly decreased under 0〫 C, regardless of measuring position. It resulted in early frost damage. Concrete with wooden form also exhibited under 0〫 C, except for the center position of the specimen. Meanwhile, temperature of concrete using bubble-board (BB) and insulation-curing-method(IM) does not indicated under 0〫 C, even in the corner of the specimens. Instead, the lowest temperature of that was 3〫 C, which is favorable result, in the corner. Core compressive strength demonstrated the different value between the specimens, depend on whether it got early frost damage. Concrete using BB or IM showed higher strength than specimens using steel plate or wooden form, due to the influence of frost damage in early 24 hours.

목차

Abstract
 1. 서론
 2. 실험계획 및 방법
  2.1 실험계획
  2.2 사용재료
  2.3 실험방법
 3. 실험결과 및 분석
  3.1 굳지않은 콘크리트의 특성
  3.2 거푸집 종류에 따른 온도이력 특성
  3.3 강도발현 특성
 4. 결론
 참고문헌

저자

• 김종백 [ Kim, Jong Back | 정회원, 청주대학교 대학원 석사과정 ]
• 남충희 [ Nam, Chung Hee | 청주대학교 건축공학부 건축공학과 ]
• 임춘근 [ Lim, Choon Goun | 정회원, 청주대학교 대학원 박사과정 ]
• 한민철 [ Han, Min Cheol | 정회원, 청주대학교 산업과학연구소 전임연구원 ]
• 김성수 [ Kim, Seoung Soo | 정회원, 청주대학교 교수, 공학박사 ]
• 한천구 [ Han, Cheon Goo | 정회원, 청주대학교 교수, 공학박사 ]

참고문헌