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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2004.10
- 수록면
- 127 - 134 (8page)
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Concrete, as the most commonly used construction material, is developing towards high performance, i.e, high strength, high toughness, high durability, and good workability. Shrinkage and permeability resistance of concrete are two Important properties relating to durability. An important measure of improving concrete impermeability is to improve the capability of resisting shrinkage and cracking. Reinforcement of concrete wIth randomly distributed short fibers may Improve the toughness of cementitious matrices by preventing or controlling the initiation, propagation, or coalescence of cracks. The fibers used are mainly steel fibers, carbon fibers, and polymer fibers. Among the polymer fibers, polypropylene fibers have attracted most attention due to the outstanding toughness of concrete reinforced with them. In order to improve the bond strength of polypropylene, various fluorination methods were applied to modify the surfaces of polypropylene fibers.
The effect of the modification of polypropylene fiber surface on the shrinkage and mechanical properties was investigated. Test results indicated that with use of fluorinated polypropylene fiber, it promotes stability strength or flexural strength rather than the specimen added the general mortar and polypropylene fiber. The results showed that resisting on the crack is 97% in the mortar and over 50% than the general polypropylene fiber fluorinated polypropylene fiber mortar wIll be used to construct in contacting with outsides like external wall finish and it will promote workability and durability or crack resIitance.
The effect of the modification of polypropylene fiber surface on the shrinkage and mechanical properties was investigated. Test results indicated that with use of fluorinated polypropylene fiber, it promotes stability strength or flexural strength rather than the specimen added the general mortar and polypropylene fiber. The results showed that resisting on the crack is 97% in the mortar and over 50% than the general polypropylene fiber fluorinated polypropylene fiber mortar wIll be used to construct in contacting with outsides like external wall finish and it will promote workability and durability or crack resIitance.
목차
Abstract
1. 서론
2. 폴리프로필렌 섬유 표면 개질
3. 실험계획 및 방법
4. 실험결과 및 분석
5. 결론
참고문헌
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