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Corrosion of steels in concrete is a serious and growing problem in industrial countries of the world. The reinforced concrete is extensively used in structural projects such as bridges, tunnels, building constructions, offshore platforms, etc. Reliable techniques are explored in order
to tackle the detrimental deterioration of the steels in concrete, by reducing the cost of repair and increasing the life of
concrete constructions. In this paper the behavior of the corrosion reinforcement in concrete is investigated using two identical Calomel Reference Electrode Potential Monitoring Technique. Maps belonging to potential variations with respect to time have been presented as contour maps with a color spectrum. This technique has been shown to be
capable of indicating the corrosion of
reinforcement, and can be used as an early - warning system in order to prevent catastrophic failures in concrete constructions.