• Eyu Debi Gaius Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor
  • Esah Hamzah Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor
  • Mohammad Ismail Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor


Corrosion, Inhibitor, Concrete, Carbon steel, Vernoniaamygdalina.


The effect of inhibitors on the corrosion behaviour of carbon steel reinforced in concretes exposed to 3.5% NaCl solution and tap water has been studied. Carbon steel was used as reinforcing bar for the experiment, calcium nitrite; sodium nitrite and bitter leaf (vernoniaamygdalina) extract were used as inhibitors. The corrosion behaviour was evaluated from potential and resistance readings using half-cell potential and concrete resistivitymeasurement techniques respectively. The results show that calcium nitrite and bitter leaf extract reduced corrosion rate in rebar compared to sodium nitrite. From the results, it is evident that the extract from vernoniaamygdalina (bitter leaf) acts as an excellent inhibitor for corrosion in reinforced concrete.


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How to Cite

Gaius, E. D., Hamzah, E., & Ismail, M. (2018). EFFECT OF INHIBITORS ON THE CORROSION BEHAVIOUR OF CARBON STEEL REINFORCED IN CONCRETE. Jurnal Mekanikal, 36(2). Retrieved from https://jurnalmekanikal.utm.my/index.php/jurnalmekanikal/article/view/55