Journal of the Architectural Institute of Korea (대한건축학회논문집)

Architectural Institute of Korea (대한건축학회)
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An Experimental Study on the Evaluation of Flexural Strength of Steel Fiber Reinforced Ultra-High Performance Concrete members

강섬유 보강 초고성능 콘크리트 부재의 휨강도 평가에 관한 실험적 연구

  • Received : 2020.07.22
  • Accepted : 2020.09.15
  • Published : 2020.09.30
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Abstract

In this study, the flexural strength of ultra-high performance concrete mixed with straight steel fibers were evaluated according to domestic and foreign standards. There are 6 specimens. The main variables are the fiber volume fraction and the yield strength of the longitudinal reinforcement. The steel fiber was mixed into 0%, 1%, and 2% with 13mm single steel fibers, and 1.5% of hybrid steel fibers with 13mm, 19mm were mixed. According to the test results, ultra-high performance concrete with higher steel fiber volume fraction and yield strength of longitudinal reinforcement test specimens had higher moment resisting capacity. For evaluate design code of steel fiber reinforced concrete, test specimens were calculated moment by K-UHPC design recommendation, ACI 318-19 and ACI 544.4R-88. Current K-UHPC design recommendation predict moment resisting more specific than ACI.544R-88 and ACI 318-19.

Keywords

Acknowledgement

본 연구는 2020년도 정부(과학기술정보통신부)의 연구비지원(NRF-2018R1A2B6009483) 및 (NRF-2020R1F1A1075751)에 의해 수행되었습니다.

References

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