带损伤环氧涂层钢筋在<strong>Cl<sup>-</sup></strong>和碳化耦合作用下的腐蚀行为

带损伤环氧涂层钢筋在Cl^-和碳化耦合作用下的腐蚀行为

魏洁, 魏英华, 李京, 赵洪涛, 吕晨曦, 董俊华, 柯伟, 何小燕

Corrosion Behavior of Damaged Epoxy Coated Steel Bars Under the Coupling Effect of Chloride Ion and Carbonization

WEI Jie, WEI Yinghua, LI Jing, ZHAO Hongtao, LV Chenxi, DONG Junhua, KE Wei, HE Xiaoyan

表5 S3溶液EIS拟合结果

Table 5 Fitting results of EIS data in S3 solution

Time d	R_s Ω·cm²	Q_c-Y₀ 10^-3 Ω^-1·cm^-2·s^-ⁿ	n_c	R_c Ω·cm²	Q_a-Y₀ 10^-3 Ω^-1·cm^-2·s^-ⁿ	n_a	R_a Ω·cm²	χ²
0	6.06	1.28	0.97	1667	1.10	0.76	5165	4.89×10^-4
1	5.85	6.17	0.97	4038	0.86	0.78	5435	6.08×10^-4
5	5.73	1.03	1.00	3.060×10⁴	0.56	0.82	5085	8.55×10^-4
20	5.30	0.93	1.00	3.036×10⁴	0.49	0.83	6707	5.62×10^-4
60	4.63	0.89	1.00	2.502×10⁴	0.44	0.84	8162	1.81×10^-4