Corrosion of reinforced concrete structures, both underground and above ground are a significant drain on the economy of most Middle East countries. High ambient temperatures combined with chlorides in the water, soil and air are causing premature failure of structures. Typically chloride levels are above the threshold for corrosion of reinforcement in structures under construction due to chloride contamination of the sand, aggregates, cement and mix water. Reinforcing steel is often shipped as deck cargo where it is subject to splash or immersion in sea water. Reinforcing steel is commonly stored outside, uncovered and subject to
contamination by chloride laden dust. These factors result in accelerated corrosion of the reinforcement in concrete structures. Cathodic protection k gaining increased acceptance as a means of controlling corrosion of reinforcement, and is the only effective method of halting corrosion in existing chloride contaminated structures.
Keywords: Reinforced Concrete, Corrosion, Cathodic Protection, Middle East, Hot Environment