Protection of Steel Rebar in Salt-Contaminated Cement Mortar Using Epoxy Nanocomposite Coatings

Figure 2

Schematic drawing of the equivalent circuit. is associated with the electrolyte resistance; and represent the electrical resistance and capacitance of the bulk mortar, respectively; and are the resistance and the capacitance of coating, respectively. is the capacitance of the double layer and is the charge transfer resistance at the steel/electrolyte interface.