- 재생굵은골재를 사용한 고강도 콘크리트의 동결융해 특성
- ㆍ 저자명
- 성찬용,임상혁,Sung. Chan-Yong,Im. Sang-Hyuk
- ㆍ 간행물명
- 한국농공학회논문집
- ㆍ 권/호정보
- 2004년|46권 2호|pp.59-66 (8 pages)
- ㆍ 발행정보
- 한국농공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
This study was performed to evaluate the freezing and thawing properties of the high strength concrete using recycled coarse aggregate. The recycled coarse aggregate replaced natural crushed aggregate by 0%, 25%, 50%, 75% and 100%. The compressive strength of the concrete using recycled coarse aggregate showed more than 300 kgf/$cm^2$ at the curing age 28 days. The mass loss ratio by freezing and thawing was less than 1% at all mix type. The relative dynamic modulus of elasticity was decreased with increasing the freezing and thawing cycles. Also, the durability factor by the freezing and thawing was decreased with increasing the content of recycled coarse aggregate. But, the recycled concrete except 100% recycled coarse aggregate showed 60 or more durability factor in the freezing and thawing 300 cycles. Accordingly, these recycled coarse aggregate can be used for high strength concrete.