Abstract:

Low carbon steel alloys; is used extensively in many production sectors, especially in construction, automotive, white goods and petrochemicals, considering the price / performance ratio. In this study, the corrosion mechanism of electro galvanized and non-galvanized St37 anchor pad element used with glass fiber reinforced concrete (GRC: Glassfibre Reinforced Concrete) in 3.5% NaCl environment was investigated using Electrochemical Impedance Spectroscopy (EIS) and Potentiodynamic Polarization (TP) methods. It was determined that the electro galvanization process protected the anchor pad element 3.2 times better in 3.5% NaCl environment. The open circuit potentials (OCP) were examined for two hours and the potential change of the metal that was not electro galvanized was approximately 235 mV, while this change was only 9 mV in the electro galvanized metal. It was seen that the deformations on the metal surface supported the electrochemical data with the optical pictures taken before and after the experiment. 

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