Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 172, Issue -, Pages 406-421Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2018.03.198
Keywords
Fiber reinforced concrete; Fiber reinforced polymers; Fiber; Pullout; Polymers; Bond-slip; Carbon fiber; Glass fiber
Categories
Funding
- Composites Research Network of the Materials Engineering Department at the University of British Columbia
- Tricon Concrete Finishing Company
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Canada-India Research Centre of Excellence (IC-IMPACTS)
Ask authors/readers for more resources
An innovative FRP fibre is proposed for concrete reinforcement as an alternative to the corrosion-susceptible steel fibres and to fill in the performance gap in the polymer fibre reinforced concretes. Vacuum infusion technique was employed to produce glass- and carbon-fibre-reinforced FRP which was cut to produce FRP fibres with strengths ranging from 194 to 953 MPa. The interface between the FRP fibre and cementitious matrix was assessed by studying the reinforcing mechanisms and failure patters in single fibre pullout tests. The durability of the fibres was investigated in terms of changes in tensile- and bond strength following their exposure to an alkaline environment. Further, SEM images were also obtained to observe any morphological changes on the surface of the FRP fibres due to potential alkaline attacks. A greater pullout resistance of FRP fibres over traditional straight and some of the hooked steel fibres was observed. Overall, FRP fibres showed good alkaline resistance. While the GFRP fibre revealed small reductions in strength, the CFRP fibre showed no such decline. There was likewise no reduction in bond strength involving either of the types of fibre. In both cases, no morphological or chemical changes could be observed under the SEM-EDX either. (C) 2018 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available