한국건축시공학회지 (Journal of the Korea Institute of Building Construction)

  • 제15권3호
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  • Pages.351-357
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  • 2015
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  • 1598-2033(pISSN)
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  • 2233-5706(eISSN)
한국건축시공학회 (The Korean Institute of Building Construction)
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Effect of Mixing Method on Mechanical Properties of Fiber Reinforced Concrete

  • Kim, Hyun Wook (Civil and Environment Research Group, POSCO) ;
  • Lee, Chang Joon (Department of Architectural Engineering, Chungbuk National University)
  • 투고 : 2015.03.19
  • 심사 : 2015.04.23
  • 발행 : 2015.06.20
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초록

Fiber reinforced concrete (FRC) has been successfully used to enhance the flexural toughness of concrete. As fibers are randomly oriented in FRC, they sometimes produce clumps that reduce the mechanical performance, and a properly chosen mixing protocol can be a way to minimize this problem. In this research, the effects of mixing method on the mechanical properties of FRC were investigated. The compressive strength, flexural strength, and flexural toughness were measured using three different mixing methods. It was shown from the results that the compressive strength and peak flexural load were not affected by changes in mixing method. However, in terms of flexural toughness, the changes in mixing method clearly affected the flexural toughness of FRC. The truck-mixed FRC outperformed two pan-mixed FRCs.

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참고문헌

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