원문정보
A Study on the Shrinkage-Reduction of Ultra High Strength Concrete Incorporating Both Extensive Agent and Shrinkage-Reducing Agent
초록
영어
This paper is to investigate the shrinkage properties of ultra high strength concrete(UHSC) incorporating 5% of expansive additives(EA) along with 1% of shrinkage reducing agent(SRA). UHSC subjected to steam curing and incorporated with steel fiber exhibited higher compressive strength than control UHSC by as much as 50MPa at 7days, while at 28days, noticeable change in compressive strength was not observed between UHSC mixtures. Control UHSC subjected to steam curing had a 922×106 of autogenous shrinkage strain value, which was 6.7 times of drying shrinkage strain value at 42 days. The combination of EA and SRA resulted in a decrease in autogenous shrinkage by as much as half of control mixture. Steam curing contributed to the reduction of autogenous shrinkage by as much as 11% compared with that of standard curing.
목차
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 경화콘크리트의 특성
4. 결론
참고문헌