원문정보
Shear Strength of Steel-Fiber Reinforced High-Strength Concrete Beams Using Recycled Coarse Aggregates
초록
영어
In this study, 25 concrete specimens were tested to investigate the variations of shear strength characteristics of high-strength concrete beams due to amount of recycled coarse aggregates replaced, and to investigate the effect of steel-fiber reinforcement on concrete using recycled coarse aggregates. The variables of specimens were replacement ratios of recycled coarse aggregates, 30%, 60%, 100%, of total coarse aggregates and steel-fiber reinforcement. Test results showed that the shear strength deterioration was not proportioned to replacement ratios of recycled aggregates, the shear strength falled rapidly at 30% of replacement ratio so far as 34% of strength reduction ratio, but after that it falled a little within 3% up to the replacement ratio 100%, and steel-fiber reinforcement of 0.75% of concrete volumn recovered completely the deteriorated shear strength and shear elastic modulas, moreover improved the shear strength above 50% rather than that of the high-strength concrete using natural coarse aggregates.
목차
1. 서론
1.1 연구의 배경
1.2 연구의 목적, 방법 및 범위
1.3 기존 실험연구
2. 실험
2.1. 시험체 계획 및 제작
2.2. 사용재료의 물리적 특성
2.3 시험체 셋팅, 가력, 계측
3. 실험결과 및 분석
3.1. 파괴상황
3.2 실험결과와 전단강도
3.3 전단탄성계수
4. 결론
참고 문헌