Journal of the Korean Recycled Construction Resources Institute (한국건설순환자원학회논문집)

Korean Recycled Construction Resources Institute (한국건설순환자원학회)
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Effects of Type of Synthetic Fiber on Material Properties of Cementless Composite

합성섬유 종류가 무시멘트 복합재료의 재료 거동에 미치는 영향

  • Choi, Jeong-Il (School of Architecture, Chonnam National University) ;
  • Park, Se-Eon (School of Architecture, Chonnam National University) ;
  • Cha, Sang Lyul (Department of Civil and Environmental Engineering, KAIST) ;
  • Lee, Bang Yeon (School of Architecture, Chonnam National University)
  • 최정일 (전남대학교 바이오하우징연구소) ;
  • 박세언 (전남대학교 건축학부) ;
  • 차상률 (한국과학기술원 건설및환경공학과) ;
  • 이방연 (전남대학교 건축학부)
  • Received : 2019.08.23
  • Accepted : 2019.09.18
  • Published : 2019.09.30
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Abstract

The purpose of this study is to investigate effects of types of synthetic fibers on mechanical properties of alkali-activated slag composite. Materials and mixture proportion for matrix are determined, and the compressive strength, tensile performance, and cracking patterns of three composites reinforced by polypropylene, polyvinyl-alcohol, and polyethylene fibers. From the test results, it was observed that polyvinyl-alcohol fiber-reinforced composite and polyethylene fiber-reinforced composite had similar tensile performance. On the other hand, polypropylene fiber-reinforced composite showed low tensile performance. And it was exhibited that other factors except tensile strength and aspect ratio of fiber influence significantly tensile behavior of composite.

이 연구의 목적은 보강섬유로 합성섬유의 종류가 알칼리활성 슬래그 복합재료의 역학성능에 미치는 영향을 조사하는 것이다. 이를 위하여 매트릭스 재료 및 배합을 결정하였고, 폴리프로필렌, 폴리비닐알코올, 폴리에틸렌 섬유로 보강된 복합재료의 압축강도, 인장성능 및 균열패턴을 평가하였다. 실험결과 폴리비닐알코올 섬유와 폴리에틸렌 섬유로 보강한 복합재료는 유사한 인장성능을 나타낸 반면 폴리프로필렌 섬유로 보강한 복합재료는 낮은 인장성능을 나타내었다. 또한 동일한 매트릭스이더라도 섬유의 종류에 따라 인장거동에 큰 차이가 발생하는 것을 확인하였으며, 섬유의 강도나 형상비 이외의 요인들도 인장거동에 큰 영향을 미치는 것을 확인하였다.

Keywords

References

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