既存鉄筋コンクリート部材中のマクロセル腐食速度の推定

抄録

A method for estimating macrocell corrosion rate of existing reinforced concrete member with joint and bending cracks was proposed and was verified in this study. First, the model, which replaced macrocell in reinforced concrete with the equivalent electric circuit, was constructed. Significance of this model was to estimate the macrocell corrosion rate that was otherwise impossible to measure in existing concrete member. Especially, the substitution values to this model were only potential, polarization resistance and concrete resistance that were measurable by non-destructive tests. The model was then verified using mortar specimen with joint or bending cracks, and also using existing reinforced concrete members.