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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Bond Strength of Various Types of Fiber Reinforced Plastic Rods
Author(s): Z. Wang, Y. Goto, and O. Joh
Publication: Special Publication
Appears on pages(s): 1118-1130
Keywords: bond; fiber reinforced plastics; pullout test; rod; slip; stress
Abstract:In this study, the tests of 12 types of FRP (fiber reinforced plastic) rods were carried out to investigate the characteristics of bond between the rods and concrete. The experimental results of bond strength and bond stress-slip relationship of FRP rods are presented and discussed. Four types of bond failure were observed. The type of bond failure of a FRP rod was principally determined by its configuration. All of the tested samples, which failed due to full frictional pullout or local frictional pullout, had an almost identical pattern in the ascending branch of the curve. The bond strength of AFRP rods was smaller than that of CFRP and GFRP rods. The bond strength of FRP rods is greatly affected by the surface configuration of the rod. The deformed FRP rods had approximately the same bond strength. The bond strength of the deformed CFRP rods was equal to, or greater than, that of the steel bar. An equation is proposed to predict the bond strength of FRP rods. The predicted values have rather good agreement with the experimental results.
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