等效电路拟合珊瑚混凝土中钢筋锈蚀行为的电化学阻抗谱研究

达波,余红发,麻海燕,吴彰钰

Equivalent Electrical Circuits Fitting of Electrochemical Impedance Spectroscopy for Rebar Steel Corrosion of Coral Aggregate Concrete

Bo DA,Hongfa YU,Haiyan MA,Zhangyu WU

表4 不同模型测得的Rct与Rp对比

Table 4

No. EEC1 EEC2 EEC3 Rp / Ω·cm2 Rct / Ω·cm2 σ2 a Rct / Ω·cm2 σ2 a Rct / Ω·cm2 σ2 CAC-11 29725 4.00×10-5 13747 18967 2.00×10-5 24505 17846 2.32×10-3 43472 CAC-12 21821 1.30×10-4 4301 15972 1.00×10-4 10150 17512 2.08×10-3 26122 CAC-13 15943 2.50×10-4 4980 6297 1.70×10-4 14626 10108 2.92×10-3 20923 CAC-14 37633 2.04×10-3 19294 25514 2.04×10-3 31413 20818 8.80×10-4 56927 CAC-15 47147 1.14×10-3 5772 39051 1.76×10-2 13868 31844 1.46×10-2 52919