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Title |
Effect of Composite Re-bars Embedded in Concrete on Surface Electrical Resistivity of Concrete
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Keywords |
콘크리트 표면저항 ; 부식 ; 보강근 ; 유리섬유복합체 ; 탄소섬유복합체 Surface resistivity of concrete ; Corrosion ; Reinforcing bars ; GFRP ; CFRP |
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Abstract |
The effect of composite reinforcing bars on surface electrical resistivity of concrete was investigated through experimental program. The resistivity was measured by Wenner method using an equipment with 4 probe. Ordinary steel, GFRP, and CFRP reinforcing bars produced domestically were used and a specimen with no reinforcement was tested for the comparison. This investigation is motivated from the fact that measured value of resistivity of concrete is significantly affected by details of steel reinforcements, such as location, depth and direction of the internal steel reinforcement. These results could be valuable data for evaluation of corrosion degree of concrete structures reinforced or strengthened by the composite reinforcing bars.
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