Table 8 Macrocell current density (\({\mathrm{j}}_{\mathrm{macro}}\)) and concrete’s electrical resistance (\(\mathrm{R}\)) for the cathode/anode surfaces ratio 1

Macrocell current density, \({\mathrm{j}}_{\mathrm{macro}}\) (µA/cm²)

7.39 (0.51)

6.20 (0.78)

5.89 (0.82)

2.12 (0.11)

0.22 (0.02)

Concrete’s electrical resistance, \(\mathrm{R}\) (Ω)

536.53 (60.62)

651.99 (64.64)

801.02 (116.16)

663.85 (160.09)

16362.6 (349.83)