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3 R_p、R_ct与钢筋锈蚀速率之间的关系

Table 3

R_p kΩ·cm²	I_corr μA·cm^-2	V_corr mm·a^-1	R_ct kΩ·cm²	Corrosion rate
2.5~0.25	10~100	0.1~1	1.86~0.186	Much higher
25~2.5	1~10	0.01~0.1	18.6~1.86	High
250~25	0.1~1	0.001~0.01	186~18.6	Moderate, low
＞250	＜0.1	＜0.001	＞186	Negligible