Journal of the Korea Concrete Institute (콘크리트학회논문집)

Korea Concrete Institute (한국콘크리트학회)
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Compressive and Tensile Strength Properties of Slurry Infiltrated Fiber Concrete

슬러리 충전 강섬유 보강 콘크리트의 압축 및 인장강도 특성

  • Kim, Suk-Ki (Dept. of Civil and Environmental Engineering, Dankook University) ;
  • Choi, Jin-Ho (Dept. of Civil and Environmental Engineering, Dankook University)
  • 김석기 (단국대학교 토목환경공학과) ;
  • 최진호 (단국대학교 토목환경공학과)
  • Published : 2006.10.31
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Abstract

The slurry infiltrated fiber concrete(SIFCON) is recognized as one of the most promising new construction materials. Compressive and direct tensile tests are performed to investigate the mechanical property of SIFCON. Hooked-end steel fibers are used in the mix with fiber volume fraction varied from 4% to 10%. The water/cement ratio is kept constant at 0.4. The amount of silica fume added is 10% by weight of cement and 0.5% of water reducing agent is added to improve the workability of the slurry. The test results in this study show that the compressive strength of SIFCON is about 1.59 to 2.68 times in comparison with the cement paste. Tensile strength is showed the enhancement of about 2.51 to 8.77 times. It is also observed that the toughness and ductility of SIFCON are increased significantly with the increasing in fiber volume fraction.

역학적 특성이 개선되고 고성능 건설 재료로 가장 주목받고 있는 슬러리 충전 섬유 콘크리트(SIFCON)의 역학적 특성을 분석하기 위해서 양단 훅크형의 강섬유를 $4{\sim}10%$의 체적비로 혼입하여 시험체를 제작한 후, 압축강도시험과 직접인장시험을 실시하였다. 물-시멘트 비는 0.4, 슬러리의 워커빌리티를 향상시키기 위해 실리카 흄과 유동화제를 각각 시멘트 중량의 10%, 0.5%를 혼입하였다. SIFCON의 강섬유 혼입률별 시험에서 나타난 압축강도는 강섬유가 혼입되지 않은 시멘트 페이스트와 비교 하였을 때 약 $1.59{\sim}2.68$배 증가하였으며, 인장강도는 약 $2.51{\sim}8.77$ 증가하였다. 또한 강섬유의 혼입률이 증가함에 따라 인성과 연성도 크게 향상되는 것을 확인할 수 있었다.

Keywords

References

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Cited by

  1. Fresh and some mechanical properties of sifcon containing silica fume vol.162, pp.2261-236X, 2018, https://doi.org/10.1051/matecconf/201816202003