지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.1
- 수록면
- 377 - 385 (9page)
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초록· 키워드
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In this study, the Impact resistance of steel fiber and organic fiber reinforced concrete and mortar was evaluated and the improvement in toughness resulting from an increase in compressive strength and mixing fiber for impact resistance on performance was examined. The types of fiber were steel fiber, PP and PVA, and these were mixed in at 0.1, 0.5 and 1.0 vol.%, respectively. Impact resistance is evaluated with an apparatus for testing impact resistance performance by high-speed projectile crash by gas-pressure. For the experimental conditions, Specimen size was $100{\times}100{\times}20$, 30mm ($width{\times}height{\times}thickness$). Projectile diameter was 7 and 10 mm and impact speed is 350m/s. After impact test, destruction grade, penetration depth, spalling thickness and crater area were evaluated. Through this evaluation, it was found that as compressive strength is increased, penetration is suppressed. In addition, as the mixing ratio of fiber is increased, the spalling thickness and crater area are suppressed. Organic fibers have lower density than the steel fiber, and population number per unit area is bigger. As a result, the improvement of impact resistance is more significant thanks to dispersion and degraded attachment performance.
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참고문헌 (9)
참고문헌 신청
Kim HS / 2011 / Evaluation of Impact Resistance Performance of High Strength Concrete by Projectile Size and Compressive Strength / Proceedings of the Korea Institute of Building Construction; 2011 May 20; Dong-Eui Unversity :7~10
Jeon YS / 2011 / A study of the destruction condition of high strength concrete impacted by high speed projectile / Journal of the Korea institute for structural maintenance inspection 15(1):253~256
Zhang M H / 2005 / Resistance of high-strength concrete to projectile impact / International Journal of Impact Engineering 31(7):825~841
Dancygier AN / 1996 / High strength concrete response to hard projectile impact / International Journal of Impact Engineering 18(6):583~599
Koji MIWA / 2009 / An estimation method of local damage in concrete plates by the modified theoretical model / Journal of Japan society of civil engineers 65(4):844~858
Jeon YS / 2011 / A study of the destruction condition of high strength concrete impacted by high speed projectile / Journal of the Korea institute for structural maintenance inspection 15(1):253~256
Zhang M H / 2005 / Resistance of high-strength concrete to projectile impact / International Journal of Impact Engineering 31(7):825~841
Dancygier AN / 1996 / High strength concrete response to hard projectile impact / International Journal of Impact Engineering 18(6):583~599
Koji MIWA / 2009 / An estimation method of local damage in concrete plates by the modified theoretical model / Journal of Japan society of civil engineers 65(4):844~858
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