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FRP Super Laminates — Transforming the future of repair and retrofit with FRP

FRP Super Laminates — Transforming the future of repair and retrofit with FRP

 

Twenty years ago, I presented the findings of a study on strengthening concrete beams with external bonding of fiber-reinforced polymer (FRP) laminates in the pages of Concrete International.1 In the aftermath of the 1989 Loma Prieta earthquake, I proposed an extension of my earlier research to retrofit deficient bridge piers by lateral confinement with FRP.2 What appeared to be unusual approaches at the time have since become mainstream techniques for the repair and retrofit of structures worldwide.
The high tensile strength, light weight, durability, and versatility of FRPs have made them the material of choice for many repair and rehabilitation projects. To date, numerous bridges, buildings, pipelines, and other structures have been retrofitted with these products worldwide. With the publication of design guidelines,3 it is fair to say that FRP is no longer an experimental product but rather a well-accepted construction material.

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