Effect of Small Concrete Cover on the Fatigue Behavior of GFRP Bars and Concrete Bond
Publication: Journal of Composites for Construction
Volume 23, Issue 2
Abstract
The paper deals with the influence of cyclic loading on the bond between glass-fiber-reinforced polymer (GFRP) bars and concrete. The experimental study considers eccentric and centric pullout tests that vary by three different parameters: (1) concrete cover; (2) concrete strength; and (3) maximum load applied during cyclic loading. The results showed that the fatigue life of the bond between the considered GFRP rebars and concrete, with a small cover and low concrete quality, is limited by the occurrence of splitting failure. As the cover increases, the fatigue failure mode becomes a combination of splitting and bar pullout. The mechanical properties of concrete have a positive effect on fatigue life.
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Acknowledgments
The research was supported by the Marie Curie Initial Training Networks—“endure” European Network for Durable Reinforcement and Rehabilitation Solutions, Project No. 607851. The authors are very grateful to Schöck Bauteile GmbH for supplying the GFRP rebars.
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Published In
Journal of Composites for Construction
Volume 23 • Issue 2 • April 2019
Copyright
©2018 American Society of Civil Engineers.
History
Received: Oct 26, 2017
Accepted: Aug 21, 2018
Published online: Dec 28, 2018
Published in print: Apr 1, 2019
Discussion open until: May 28, 2019
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