한국건축시공학회:학술대회논문집 (Proceedings of the Korean Institute of Building Construction Conference)
- 한국건축시공학회 2013년도 추계 학술논문 발표대회
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- Pages.34-35
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- 2013
고온가열 및 하중재하에 따른 초고강도 콘크리트의 역학적 특성 평가
Evaluation on Mechanical Properties of Ultra High Strength Concrete with Heating and Loading
- 김민정 (충남대학교 건축공학과) ;
- 최경철 (충남대학교 건축공학과) ;
-
윤민호
(충남대학교 건축공학과) ;
- 함은영 (충남대학교 건축공학과) ;
- 미야우치 히로유키 (충남대학교 건축공학과) ;
-
김규용
(충남대학교 건축공학과)
- Kim, Min-Jung ;
- Choe, Gyeong-Cheol ;
-
Yoon, Min-Ho
;
- Ham, Eun-Young ;
- Miyauchi, Hiroyuki ;
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Kim, Gyu-Yong
- 발행 : 2013.11.15
초록
In this study, the ultra high strength concrete which have 80, 130, 180MPa took the heat from 20℃ to 700℃ and the 0, 20% stress in normal condition's to evaluate stress-strain, residual compressive strength and thermal expansion deformation were evaluated. The heating speed of specimen was 0.77℃/min 20~50℃, 50℃ before the target temperature, and the other interval's heating speed was 1℃/min. As a result, the stress-strain curve of non-load specimen showed the liner behavior at high temperature when the specimen's strength increased more. If ultra high strength concrete got loads, its compressive strength tended to decrease different from the normal strength concrete. The thermal expansion deformation was expanded from a vitrification of quartz over 500℃. however, over the 600℃, it was shrinked because of the dehydration of the combined water.
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