Flexural behavior of a precast concrete deck connected with headed GFRP rebars and UHPC

Won Jong Chin, Young Hwan Park, Jeong Rae Cho, Jin Young Lee, Young Soo Yoon

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Steel bent reinforcing bars (rebars) are widely used to provide adequate anchorage. Bent fiber-reinforced polymer (FRP) rebars are rarely used because of the difficulty faced during the bending process of the FRP rebars at the construction site. Additionally, the bending process may cause a significant decrease in the structural performance of the FRP rebars. Therefore, to overcome these drawbacks, a headed glass fiber-reinforced polymer (GFRP) rebar was developed in this study. The pull-out tests of the headed GFRP rebars with diameters of 16 and 19 mm were conducted to evaluate their bond properties in various cementitious materials. Moreover, structural flexural tests were conducted on seven precast concrete decks connected with the headed GFRP rebars and various cementitious fillers to estimate the flexural behavior of the connected decks. The results demonstrate that the concrete decks connected with the headed GFRP rebar and ultra-high-performance concrete (UHPC) exhibited improved flexural performance.

Original languageEnglish
Article number604
JournalMaterials
Volume13
Issue number3
DOIs
Publication statusPublished - 2020 Feb 1

Keywords

  • Bond strength
  • Concrete headed GFRP rebar
  • Development length
  • Flexural strength
  • Glass fiber-reinforced polymer (GFRP) rebar
  • Precast concrete deck
  • Ultra-high-performance concrete (UHPC)

ASJC Scopus subject areas

  • Materials Science(all)

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