Compressive behaviour of CFRP-wrapped concrete exposed to cyclic wet-dry environment

Y. C. Guo, J. F. Chen*, J. H. Xie, Y. H. Huang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An experimental study was conducted to investigate the axial compressive performance of CFRP-confined concrete after exposure to a cyclic wet-dry environment with 3.5% salt solution. A total of sixty 150x300mm concrete cylinders unconfined or confined with CFRP were tested. The test parameters included the number of wet-dry cycles (0, 60, 120, 240 and 360) and the number of CFRP layers (0, 1, 2 and 3). The results show that the axial compressive strength and hoop strain of concrete confined with three layers of CFRP were reduced by up to 13% and 19% respectively after 360 wet-dry cycles. The ultimate axial strain increased with the increase of the number of CFRP layers, but the effect of the number of wet-dry cycles was insignificant.

Original languageEnglish
Title of host publicationProceedings of the 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016
EditorsJ.G. Dai, J.G. Teng
PublisherDepartment of Civil and Environmental Engineering and Research Institute for Sustainable Urban Development, The Hong Kong Polytechnic University
Pages786-790
Number of pages5
ISBN (Electronic)9789881448026
Publication statusPublished - 01 Jan 2016
Event8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016 - Hong Kong, China
Duration: 14 Dec 201616 Dec 2016

Conference

Conference8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016
CountryChina
CityHong Kong
Period14/12/201616/12/2016

Keywords

  • CFRP
  • Compressive performance
  • Confined concrete
  • Durability
  • Wet-dry cycle

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Polymers and Plastics

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