한국공간구조학회논문집 (Journal of Korean Association for Spatial Structures)

  • 제23권2호
  • /
  • Pages.69-78
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  • 2023
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  • 1598-4095(pISSN)
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  • 2287-7401(eISSN)
한국공간구조학회 (Korean Association for Spatial Structures)
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강섬유 특성에 따른 고강도 콘크리트의 압축 및 휨 거동

Compressive and Flexural Behavior of High-Strength Concrete Incorporating Different Types of Hooked-End Steel Fibers

  • 정우진 (충남대학교 건축공학과) ;
  • 김애화 (충남대학교 건축공학과) ;
  • 윤현도 (충남대학교 건축공학과)
  • Jeong, Woo-Jin (Department of Architectural Engineering, Chungnam National University) ;
  • Jin, Ai-Hua (Department of Architectural Engineering, Chungnam National University) ;
  • Yun, Hyun-Do (Department of Architectural Engineering, Chungnam National University)
  • 투고 : 2023.02.03
  • 심사 : 2023.03.02
  • 발행 : 2023.06.15
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초록

This paper investigates the effects of aspect ratio and volume fraction of hooked-end normal-strength steel fibers on the compressive and flexural properties of high-strength concrete with specified compressive strength of 60 MPa. Three types of hooked-end steel fibers with aspect ratios of 64, 67 and 80 were considered and three volume fractions of 0.25%, 0.50% and 0.75% for each steel fiber were respectively added into each high-strength concrete mixture. The test results indicated that the addition of normal-strength steel fibers is effective to improve compressive and flexural properties of high-strength concrete but fiber aspect ratio had little effect on the modulus of elasticity and compressive strength. As steel fiber content and aspect ratio increased, flexural beahvior of notched high-strength concrete beams was effectively improved.

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과제정보

이 연구는 정부(교육부)의 재원으로 한국 연구재단 지역대학우수과학자지원사업의 지원을 받아 수행된 연구 결과입니다.(NO. 2016R1D1A3B02008179)

참고문헌

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