Abstract
AbstractThe impressed current cathodic protection (ICCP) approach is the most effective way to prevent steel from corroding in concrete structures. The protection achieved by the ICCP system depends on delivering required uniform current to the steel. However, a variety of characteristics and boundary conditions, such as anode type, chloride concentration, concrete resistivity, and geometrical layout, influence the quantity of protection achieved. In presented paper, effect of applied current density as well as electrical resistivity of the concrete on the polarization performance of the system was analyzed numerically. The results revealed that these characteristics have a significant impact on the anode performance. When the concrete electrical resistivity is low, the current is dispersed evenly than when the concrete resistivity is higher. In addition, the front end of the rebar always indicated a higher potential shift than the back end of the rebar.KeywordsNumerical modelingCorrosionCathodic protectionReinforced concrete
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