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논문 기본 정보

자료유형
학술저널
저자정보
소형석 소승영 (전북대학교)
저널정보
대한건축학회 대한건축학회 논문집 - 구조계 大韓建築學會論文集 構造系 第25卷 第7號
발행연도
2009.7
수록면
63 - 70 (8page)

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Recently, considerable effort has been invested in research and development more highly effective construction materials due to the increasing of the multi-storied and large-sized buildings. The ultra-high strength steel fiber reinforced cementitious composites (UHS-SFRCC) are an ultra-high strength and high ductility composite material with advanced mechanical properties,and has shown some promise in the civil engineering community. In this study, as a series of the planned research to develope the practical UHS-SFRCC considered an economical efficiency. various UHS-SFRCC were made by some experimental factors such as the type and replacement ratio of admixture material, use of an alkaline stimulant, curing conditions, and the influence of experimental factors on strength development of UHS-SFRCC was discussed with the microstructure of them. As a results, the total porosity of UHS-SFRCC was significantly reduced by using appropriate silica fume and blast furnace slag combined, in consequence, the compressive and flexural strength was increased. There was no effect of NaOH as an alkaline stimulant to improve the compressive and flexural strength of UHS-SFRCC.. The total porosity of UHS-SFRCC was significantly reduced by the steam curing (90℃, but the volume of pore diameters with large size in the composites was also increased. The UHS-SFRCC with the range of compressive strength 154MPa and flexural strength 33MPa was made using silica fume, blast furnace slag, quartz sand(below 0.5mm), steel fiber in the atmosphere curing condition of 20℃.

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Abstract
1. 서론
2. 실험
3. 실험결과 및 고찰
5. 결론
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UCI(KEPA) : I410-ECN-0101-2009-540-018577786