논문 상세보기
pp.11-18
PURPOSES : Durability of concrete is traditionally based on evaluating the effect of a single deterioration mechanism such as freezing & thawing action, chloride attack, carbonation and chemical attack. In reality, however, concrete structures are subjected to varying environmental exposure conditions which often results in multi-deterioration mechanism occurring. This study presents the experimental results on the durability of concrete incorporating air-cooled slag(AS) and/or water-cooled slag(WS) exposed to multi-deterioration environments of chloride attack and freezing & thawing action.
METHODS: In order to evaluate durable performance of concretes exposed to single- and multi-deterioration, relative dynamic modulus of elasticity, mass ratio and compressive strength measurements were performed. RESULTS: It was observed that multi-deterioration severely affected durability of concrete compared with single deterioration irrespective of concrete types. Additionally, the replacement of cement by AS and WS showed a beneficial effect on enhancement of concrete durability.
CONCLUSIONS : It is concluded that resistance to single- and/or multi-deterioration of concrete is highly dependent on the types of binder used in the concrete. Showing the a good resistance to multi-deterioration with concrete incorporating AS, it is also concluded that the AS possibly is an option for concrete materials, especially under severe environments.
1. 연구배경 및 목적
2. 실험개요
2.1. 사용재료
2.2. 콘크리트 배합
2.3. 실험방법
2.3.1. 압축강도
2.3.2. 동결융해 저항성
2.3.3. 염해-동결융해 복합열화 저항성
3. 실험결과 및 고찰
3.1. 콘크리트의 강도 특성
3.2. 콘크리트의 동결융해 저항성
3.3. 콘크리트의 염해-동결융해 복합열화 저항성
4. 결론 및 요약
감사의 글
REFERENCES
