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한국건축시공학회 / v.8, no.5, 2008년, pp.53-58 
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고온 가열에 따른 섬유혼입 고강도 콘크리트의 강도특성 변화
( Strength Properties of the Fiber Mixed High Strength Concrete at Elevated Temperature ) |
| 김상식;김성수; 청주대 대학원, (주)정일구조기술사사무소;청주대학교 건축공학부;
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| 초 록 |
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| This study is to investigate experimentally residual strength properties of the high strength concrete containing the hybrid of nylon and polypropylene fiber at elevated temperature. Test results showed that specimens heated up to $300^{circ}C$ exhibited similar strength properties to the one at room temperature. This result is significantly different from previous studies. but specimens heated over $400^{circ}C$ showed dramatic decrease indicating similar tendency. For the residual strength properties, one at $300^{circ}C$ even increased 10%, which is also different from previous studies, but it significantly decreased in $400^{circ}C$ as widely expected. Melted pores by organic fibers in concrete specimens was observed with FE-SEM. For the density of concrete in elevated temperature, internal system in $200^{circ}C$ had even denser than in $20^{circ}C$, but was collapsed in $400^{circ}C$. |
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| 키워드 |
| 고강도 콘크리트;가열온도;나일론섬유;폴리프로필렌섬유;섬유혼입 콘크리트;High Strength Concrete;Heating Temperature;Nylon Fiber(NY);Polypropylene Fiber(PP);Fiber Mixed Concrete; |
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한국건축시공학회지 / v.8, no.5, 2008년, pp.53-58
한국건축시공학회
ISSN : 1598-2033
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200835054212886)
언어 : 한국어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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