The Effect of Chloride on Carbon Steel Reinforcement Corrosion

Abstract:

In this study, the effect of chloride in marine environment on carbon steel reinforcement corrosion was investigated. The nature of corrosion products produced was analyzed through visual inspection and X Ray Diffraction (XRD). It was very difficult using gain and loss technique alone to evaluate passivation conditions and corrosion reactions. It was found that the corrosion rate of steel increases with the increasing of sodium chloride (NaCl) concentration when steel bars without concrete were used. However, a passive film was formed on all steel samples embedded in concrete due to concrete alkalinity. Results reveal that most corrosion products were mainly FeO(OH) along with FeCO₃ and Fe₂O₃.

• Periodical: Key Engineering Materials (Volume 833)
• Pages: 238-242
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.833.238
• Online since: March 2020
• Authors: Abulmaali M. Taher*, Ayoub Alsayd, Elsadig Abdallah
• Keywords: Carbon Steel, Concrete, Corrosion, Passivation, Portland Cement, Sea Water, XRD

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