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One of the solutions proposed by researchers to control the corrosion of reinforced concrete is the use of wrapping technology. Many researchers have investigated carbon-fiber polymer (CFP) for the aim of wrapping reinforced concrete. However, the effect of using CFP on the corrosion resistance of concretes has not been fully studied by researchers. This work focused on the mechanical performance and electrochemical corrosion behavior of carbon steel reinforced concrete wrapped with CFP. The samples were made with one, two, and three CFP layers and tested for corrosion resistance. The orientation of wrapped CFP has also been studied in this work. The results indicated that the compressive strength of the concrete cube samples increased by increasing the CFP layers. Electrochemical impedance spectroscopy tests indicated that the reinforced concrete wrapped with CFP had a higher value of passive film resistance compared to plain concrete, indicating more enhancement of corrosion resistance on the surface of carbon steel rebar.

international journal of electrochemical science

High Mechanical Performance of Reinforced Concrete Wrapped with Carbon-Fiber Polymer and Electrochemical Corrosion Behavior of Carbon Steel in the concrete