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Compressive and Tensile Behavior of Polyetylene Fiber Reinforced Composite According to Silica Sand and Fly Ash

규사 혼입과 플라이애쉬 혼입에 따른 폴리에틸렌 섬유보강 복합재료의 압축 및 인장거동

  • Received : 2016.03.09
  • Accepted : 2016.03.23
  • Published : 2016.03.30

Abstract

The purpose of this study is to investigate experimentally the effect of reinforcement of polyetylene fiber, inclusion of silica sand, and replacement of cement with fly ash on the compressive and tensile behavior of fiber reinforced composite. Five types of mixture proportions were determined and compressive strength and uniaxial tension tests were performed. Test results showed that strength, ductility, and control of cracking were improved by the reinforcement of fiber. Although the strength was improved by the inclusion of dried silica sand, the ductility was reduced and the crack width was increased. On the other hand, the increase of ductility, the decrease of crack width, and the decrease of strength were observed by the replacement of cement with fly ash.

이 연구의 목적은 폴리에틸렌 섬유보강, 규사 혼입, 시멘트를 플라이애쉬로 치환함에 따라 나타나는 복합재료의 압축강도 및 인장거동에 대해 실험적으로 조사하는 것이다. 이를 위하여 총 5가지 배합을 결정하였고, 압축강도 실험과 일축인장 실험을 수행하였다. 실험결과 섬유보강을 통해 강도와 연성 및 균열제어 측면에서 효과적인 것으로 나타났으며, 절대건조상태의 골재를 혼입하면 강도 증진에 효과적이지만 연성과 균열제어 측면에서 성능이 떨어지는 것으로 나타났다. 또한 시멘트를 플라이애쉬로 대체하면 강도는 떨어지지만 연성이 증가하고 균열폭이 줄어드는 것으로 나타났다.

Keywords

References

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