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Performance of Galvanized Steel Reinforcement in Concrete in Sea and Dead Sea Water

DOI: 10.4236/msce.2015.35006, PP. 46-53

Keywords: Electrochemical Impedance, Concrete, Galvanized Steel, Dead Sea Water

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Abstract:

Steel reinforcements of 8 mm diameter and 24 cm length were cut from steel and after pickling treatment of all specimens. Steel reinforcements then were galvanized by hot dipping method. The measured coating thickness by thickness gage meter of zinc coat was in the range 8 - 11 μm. Bare steel samples were also used for comparison reasons. Each steel bar was inserted in a middle of a plastic tube with 4.5 cm diameter into which concrete was cast. After proper curing, specimens were immersed into 3.5% NaCl and Dead Sea water separately. Electrochemical impedance spectroscopy measurements were performed at different time intervals. Results showed that galvanized steel was corrosion resistant in sea water, and Dead Sea water over the test period.

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