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Materials 2016, 9(9), 737; doi:10.3390/ma9090737

Improved Bond Equations for Fiber-Reinforced Polymer Bars in Concrete

School of Engineering, University of British Columbia, Kelowna, BC V1V1V7, Canada
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Academic Editor: Maryam Tabrizian
Received: 10 March 2016 / Revised: 12 August 2016 / Accepted: 23 August 2016 / Published: 30 August 2016
(This article belongs to the Section Advanced Composites)
View Full-Text   |   Download PDF [4703 KB, uploaded 30 August 2016]   |  

Abstract

This paper explores a set of new equations to predict the bond strength between fiber reinforced polymer (FRP) rebar and concrete. The proposed equations are based on a comprehensive statistical analysis and existing experimental results in the literature. Namely, the most effective parameters on bond behavior of FRP concrete were first identified by applying a factorial analysis on a part of the available database. Then the database that contains 250 pullout tests were divided into four groups based on the concrete compressive strength and the rebar surface. Afterward, nonlinear regression analysis was performed for each study group in order to determine the bond equations. The results show that the proposed equations can predict bond strengths more accurately compared to the other previously reported models. View Full-Text
Keywords: fiber reinforced polymer (FRP) rebar; bond strength; factorial design; pullout test fiber reinforced polymer (FRP) rebar; bond strength; factorial design; pullout test
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Pour, S.M.; Alam, M.S.; Milani, A.S. Improved Bond Equations for Fiber-Reinforced Polymer Bars in Concrete. Materials 2016, 9, 737.

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