개인구독
소속 기관이 없으신 경우, 개인 정기구독을 하시면 저렴하게
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지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.1
- 수록면
- 127 - 135 (9page)
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초록· 키워드
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For efficient mix design, this paper offers following information: the fly ash (FA) replacement ratio in which strength development is the maximum, the range of FA replacement ratio in which the strength of FA concrete is higher than that of ordinary Portland cement (OPC) concrete, and the binder content per unit strength. For these matters, various statistical analyses were performed based on a wide range of mix proportions and a number of strength test results of ready mixed concretes used in eight construction sites.
The strength ratio, the ratio of FA concrete to OPC concrete in compressive strength, was expressed as the function of binder-water ratio and FA replacement ratio by multiple linear regression analysis. This equation suggests the range of FA replacement ratios in which strength ratio of 1 or higher can be obtained when binder content of FA concrete is the same as that of OPC concrete. The strength ratio increases with increasing water-binder ratio. As water-binder ratios decrease, the range of FA replacement ratios also decreases. It is desirable that FA concrete should have FA replacement ratio of about 15% to guarantee required average compressive strength using minimum binder contents. In FA replacement ratio of about 15%, the binder content per unit strength is 10.1∼10.6㎏/㎥/㎫ with respect to water-binder ratio. Because the binder content per unit strength is calculated with respect to water-binder ratio and FA replacement, its concept can be used as a means of determination of the binder content in mix design of FA concrete.
The strength ratio, the ratio of FA concrete to OPC concrete in compressive strength, was expressed as the function of binder-water ratio and FA replacement ratio by multiple linear regression analysis. This equation suggests the range of FA replacement ratios in which strength ratio of 1 or higher can be obtained when binder content of FA concrete is the same as that of OPC concrete. The strength ratio increases with increasing water-binder ratio. As water-binder ratios decrease, the range of FA replacement ratios also decreases. It is desirable that FA concrete should have FA replacement ratio of about 15% to guarantee required average compressive strength using minimum binder contents. In FA replacement ratio of about 15%, the binder content per unit strength is 10.1∼10.6㎏/㎥/㎫ with respect to water-binder ratio. Because the binder content per unit strength is calculated with respect to water-binder ratio and FA replacement, its concept can be used as a means of determination of the binder content in mix design of FA concrete.
목차
Abstract
1. 서론
2. 수집 데이터의 특성
3. 강도 특성
4. FA 콘크리트 배합 제안
5. 결론
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UCI(KEPA) : I410-ECN-0101-2012-540-004014242