A_Fe 0.41[V] Tafel slope iron oxidation A_H2 -0.15[V] Tafel slope hydrogen evolution A_O2 -0.18[V] Tafel slope oxygen reduction C_O2_ref 8.6[mol/m^3] Oxygen reference concentration Eeq_Fe -0.76[V] Iron oxidation equilibrium potential Eeq_H2 -1.03[V] Hydrogen evolution equilibrium potential Eeq_O2 0.189[V] Oxygen reduction equilibrium potential i0_Fe 7.1e-5[A/m^2] Iron oxidation exchange current density i0_H2 1.1e-2[A/m^2] Hydrogen evolution current density i0_O2 7.7e-7[A/m^2] Oxygen reduction exchange current density Eeq_Zn -0.68[V] Zn equilibrium potential L 3.175e-2[m] Concrete section length R_rebar 0.635e-2[m] Reinforcing bar radius S 2.54e-2[m] Concrete thickness W 6.35e-2[m] Width of concrete section PS 0.6 Pore saturation E_app -1[V] Applied cell potential