논문 국내 국내전문학술지(KCI급) 고로슬래그미분말의 치환율 및 분말도에 따른 초고강도콘크리트의 공학적 특성에 관한 실험적 연구
- 학술지 구분 국내전문학술지(KCI급)
- 게재년월 2006-12
- 저자명 김을용,이상수공동(참여)
- 학술지명 대한건축학회지회연합회지
- 발행처명 대한건축학지회연합
- 발행국가 국내
- 논문언어 한국어
홈페이지논문 초록 (Abstract)
In this study, the experiment was carried out to investigate and analyze the engineering properties of ultra-high strength concrete according to replacement ratio and fineness of blast-furnace slag. The main experimental variables were water/binder ratio 23.5 27.5, 31.5, 35.5, 39.5(%) water content 165㎏/㎥ and mineral admixtures such as blast furnace slag powder. Even in a case where the ratio of blast furnace slag powder is 70%, using a fineness of 8000 grade afforded a higher strength development than using a plain concrete, which indicates the potential of high utilization in the future. Although it has been pointed out that the concrete using blast furnace slag powder has a problem of yielding relatively low rate of strength development in the early age, it is demonstrated that this can be resolved by using a powder with fineness greater than 6000 grade. It is considered necessary that powder fineness should be upgraded for the applications such as high performance concrete to be used in high strength required areas by considering hydration heat control and early strength requirements in the future.