Rate of Reinforcement Corrosion and Stress Concentration in Concrete Columns Repaired with Bonded and Unbonded FRP Wraps

作者: G. Nossoni , R. S. Harichandran , M. I. Baiyasi

DOI: 10.1061/(ASCE)CC.1943-5614.0000547

关键词: Composite materialPolymerReinforced concreteFibre-reinforced plasticCorrosionStress concentrationMaterials scienceMechanical engineeringMechanics of MaterialsCivil and Structural EngineeringCeramics and CompositesBuilding and Construction

摘要: AbstractExperiments were conducted to assess the effect of using bonded and unbonded glass carbon fiber–reinforced polymer (FRP) wraps strengthen corrosion-damaged, reinforced-concrete (RC) columns. The wrapping on rate corrosion strain concentration FRP wrap was investigated through an accelerated test. results indicated that reduced mass loss in reinforcing bars by 33–46% after 130 days testing. Both equally effective slowing down corrosion. Although stress concentrations FRP, they slightly less reducing than wraps. Finite-element (FE) analysis experimental specimens performed verify obtained from tests. FE confirmed around a corroding bar when unbonded. Because...

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