Research Article

Effect of Red Mud on the Corrosion of Reinforced Concrete Studied by Electrochemical Impedance Spectroscopy

Table 3

EIS results of the electrode resistance, 𝑅 𝑒 (= 𝑅 𝑏 , Ohms), of reinforced concrete without red mud (reference) and with different red mud contents (10, 20, and 30 wt%).

Age (months)Electrode resistance, 𝑅 𝑒 = 𝑅 𝑝 ( Ω )
Reference (0%)10%20%30%

11.99E + 061.23E + 063.33E + 066.42E + 06
21.79E + 051.53E + 052.79E + 051.11E + 06
37.66E + 031.20E + 041.08E + 041.20E + 05
55.44E + 034.46E + 033.16E + 033.40E + 03
72.24E + 031.55E + 031.93E + 031.20E + 03
93.14E + 031.45E + 031.50E + 031.11E + 03
113.18E + 031.44E + 031.34E + 039.69E + 02
133.09E + 031.60E + 032.68E + 031.33E + 03