| 논문명 |
고온 가열시 골재 종류 변화에 따른 고강도 콘크리트의 강도 특성 / Strength of the High Strength Concrete Subjected to Elevated Temperature Depending on Aggregate Kinds / 11. 제9분과 재료 및 시공 |
| 저자명 |
김상식 ; 장기현 ; 이보형 ; 한창평 ; 한민철 ; 김성수 |
| 발행사 |
대한건축학회 |
| 수록사항 |
대한건축학회 학술발표대회 논문집 (2007-10) |
| 페이지 |
시작페이지(479) 총페이지(4) |
| 주제분류 |
재료 |
| 주제어 |
고강도 ; 가열온도 ; 화강암 ; 석회암 ; 현무암 ; High-Strength Concrete ; Heating Temperature ; Granite ; Lime stone ; Basalt |
| 요약1 |
본 연구에서는 여타의 영향요인 중 화강암, 석회암 및 현무암 등 골재 종류 변화에 따른 가열온도별 잔존 강도 특성을 검토함으로써 고강도 콘크리트를 사용한 실구조물이 화재 후 안정성 평가에 대한 참고 자료로 제시하고자 한다. |
| 요약2 |
Results of this experiment tests showed that all specimens, as for the properties of fresh concrete, had favorable fluidity, satisfying 600±100mm of slump flow. Air content was varied with aggregate types which indicated 3.0±0.5% in the specimens using granite and lime stone as a coarse aggregate, but basalt used specimens increased the value more than 80%, compared with others. This is due to the multi porous properties of the basalt. The compressive strength of all specimens was indicated at around 80MPa at 28 elapse days, but this strength values of the specimens gradually decreased at fire circumstance. It is demonstrated that the residual compressive strength of high strength structure, which was once exposed to the fire and cooled down, is deteriorated. This is highly affected by higher temperature, so that the careful attention should be considered whether the structures could be recycled again. |
| 소장처 |
대한건축학회 |