Constitutive Model for Rubberized Concrete Passively Confined with FRP Laminates
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VIEW CORRECTIONPublication: Journal of Composites for Construction
Volume 23, Issue 6
Abstract
This article develops an analysis-oriented stress-strain model for rubberized concrete (RuC) passively confined with fiber-reinforced polymer (FRP) composites. The model was calibrated using highly instrumented experiments on 38 cylinders with high rubber content (60% replacement of the total aggregate volume) tested under uniaxial compression. Parameters investigated include cylinder size (: or ), as well as amount (two, three, four, or six layers) and type of external confinement (carbon or aramid FRP sheets). FRP-confined rubberized concrete (FRP CRuC) develops high confinement effectiveness ( up to 11) and extremely high deformability (axial strains up to 6%). It is shown that existing stress-strain models for FRP-confined conventional concrete do not predict the behavior of such highly deformable FRP CRuC. Based on the results, this study develops a new analysis-oriented model that predicts accurately the behavior of such concrete. This article contributes toward developing advanced constitutive models for analysis/design of sustainable high-value FRP CRuC components that can develop high deformability.
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Acknowledgments
The research leading to these results has received funding from the European Union Seventh Framework Programme [FP7/2007-2013] under Grant Agreement No. 603722 and the European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie Grant Agreement No. 658248. The authors also thank Richard Morris from Tarmac UK for providing the portland limestone cement (CEM II 52.5 N). The AFRP and CFRP systems were kindly provided by Weber Saint-Gobain (UK) and Fyfe Europe S.A., respectively.
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Published In
Journal of Composites for Construction
Volume 23 • Issue 6 • December 2019
Copyright
©2019 American Society of Civil Engineers.
History
Received: Oct 17, 2017
Accepted: Mar 11, 2019
Published online: Aug 27, 2019
Published in print: Dec 1, 2019
Discussion open until: Jan 27, 2020
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