Bond Strength of Fiber Reinforced Plastic Bars in Concrete

by Saeed Daniali, Lamar Univ, United States,

Document Type: Proceeding Paper

Part of: Serviceability and Durability of Construction Materials


In this study, 27 beam specimens were tested to determine the bond strength of fiber reinforced plastic bars (FRP) in tension. The specimens were reinforced with #4, #6, or #8 FRP bars. The FRP bars were made of glass reinforcement and vinylester binder. The concrete strength ranged from 4000 psi to 4500 psi. All those specimens reinforced with #4 bars failed in tension. Only the specimens containing #6 bars with 24 inches embedment length could develop the full tensile strength of the #6 bar. All of the specimens reinforced with #8 bars failed due to bond.

Subject Headings: Fiber reinforced concrete | Bars (structure) | Fiber reinforced polymer | Glass reinforced plastics | Bonding | Strength of materials | Concrete beams | Structural strength

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