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This research is to propose the characteristics of thermal expansion rate and the model about the high strength concrete of 100 ㎫ in order to set the prospective model and conduct the safety evaluation depending on the existence of fiber cocktail.
The thermal expansion rate of the concrete tends to increase over the overall temperature range and between 500℃ and 600℃, it shows rapid increasing and after the range it shows soft increasing. In case of the normal strength concrete, as it is affected by the high temperature, the rate tends to increase. But it is soft relative to the high strength concrete. And, the high strength concrete shows the rate increasing as it gets hot. Even though there are few differences, it shows soft increasing after 500℃ or 600℃.
It is considered that as the movement of the internal opening and evaporation increase, the expansion rate increases up to 500℃ or 600℃. After a certain temperature, even though the volume of the internal opening increases, it seems to be lack of the amount of the openings to disperse the internal pressure. And, although the expansion rate affects strength, as it is high strength, the strength is affected by fly ash, PP fiber, and fiber cocktail mixing amount. As the PP fiber, Fiber cocktail of the high strength fiber increase about the high temperature, the expansion rate becomes lower relative to the concrete which is not mixed with the fiber cocktail. And, in this research, the model for the expansion rate about the high strength concrete of 100Map depending on the existence of the fiber cocktail is proposed.

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Abstract
1. 서론
2. 실험체 제작
3. 실험결과 및 분석
4. 열팽창율 모델 제시
5. 결론
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UCI(KEPA) : I410-ECN-0101-2009-540-014970781