Computers and Concrete

  • 제28권2호
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  • Pages.107-114
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  • 2021
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Bond behavior of FRP bars in CR concrete

  • Liang, Jiongfeng (Faculty of Civil & Architecture Engineering, East China University of Technology) ;
  • Liu, Jianguo (Faculty of Civil & Architecture Engineering, East China University of Technology) ;
  • Fan, Li (School of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Ren, Rui (School of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Li, Wei (College of Civil Engineering and Architecture, Wenzhou University) ;
  • Yang, Wenrui (Faculty of Civil & Architecture Engineering, East China University of Technology)
  • 투고 : 2021.01.06
  • 심사 : 2021.06.11
  • 발행 : 2021.08.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper evaluated the bond behavior between recycled crumb rubber (CR) concrete and fiber reinforced polymer (FRP) bar. An experimental study consisting of fifty-seven pull-out specimens with fine recycled crumb rubber aggregate content of 0%, 5%,10% and 15% was described. The results showed that recycled crumb rubber concrete pull-out specimens exhibited similar bond stress-slip curves, which had four stages: the micro-slip, concrete internal cracking, pullout and residual stages. The use of crumb rubber in concrete reduced the bond strength. The bond strength decreased with the increase of the compressive strength of recycled crumb rubber concrete. The type and content of recycled crumb rubber also affected the bond strength. The glass fiber reinforced polymer (GFRP) bars tended to have stronger bonds than that of basalt fiber reinforced polymer (BFRP) bars.

키워드

과제정보

This work was supported by the Chinese National Natural Science Foundation (No. 52068001, 51608435), the Project of academic and technological leaders of major disciplines in Jiangxi Province (No. 20204BCJL2037), the Natural Science Foundation of Jiangxi Province (No. 20202ACBL214017), the Key Laboratory for Structural Engineering and Disaster Prevention of Fujian Province (Huaqiao University) (No. SEDPFJ-2020-01) and the Key R&D Program in Shaanxi Province (No. 2020SF-392), which are gratefully acknowledged.

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