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Study of the Impact of Several Coatings in Minimizing the Rebar Corrosion in Concrete

This paper represents experimental study to examine the influence of several coatings to decrease the rebar corrosion. The experiments were carried out for three types of coatings. Those have been painted on the steel and select the best type of coatings in decreasing the steel corrosion rate. Testing program included experiments to select the best one within three types of coatings (Isonem MS Polymers, Sika Zink Rich-1, Isonem PU Floor) are used and available in market. The result of corrosion rate for rebar in uncoated samples in level five (after 70-days) was loss of more than 50% from its weight. While, the result of corrosion rate for rebar in samples with coating type (C) "Isonem PU Floor" was loss of less than 2 % from its weight which is the most effective type and the best coating.