Effect Use of Two Chemical Compounds Sodium Nitrate and Sodium Silicate as Corrosion Inhibitor to Steel Reinforcement

  • Sarah kareem Mohammed AL-Esra’a University College

Abstract

Corrosion of steel reinforcement is one of the biggest problems facing all countries in the world like bridges in the beach area and marine constructions which lead to study these problems and apply some economical solutions. According to the high cost of repair for these constructions, were studied the effect of using kind of chemical compounds sodium nitrite(NaNO2) and sodium silicate(Na2SiO3) as corrosion inhibitors admixture for steel bars that immersed partially in electrolyte solution (water + sodium chloride in 3% conc.) (Approximately similar to the concentration of salt in sea water). The two inhibitors above added each one to the electrolyte solution at concentrations (0.5%, 1% and 2%) for both of them.

     The results were  corrosion rate for steel sample that's immersed partially in salt solution was higher than corrosion rate of steel bar that's immersed partially in electrolyte solution with inhibitors  also the two corrosion inhibitors (sodium nitrite and sodium silicate) that added to the electrolyte solution were working successfully to prevent and inhibit the corrosion by using weight loss technique with best percent of 0.5% sodium nitrite ( efficiency 94.1% ) and best percent of 2% sodium silicate ( efficiency 92.5%).

Downloads

Download data is not yet available.

References

Winston R. R., Herbert U. H., ‘’Corrosion and Corrosion Control’’, Fourth Edition, USA, 2006.

dr. Žiga. Šmit, “Corrosion in concrete steel”, University of Ljubljana, Faculty of mathematics and physics Department of physics, April 2008.

John P.Broofiled,”Corrosion of steel in concrete”, E& FN spon, London and New York, 2003.

M. S. Al-Otaibi, A. M. Al-Mayouf,. M. Khan, A. A. Mousa, S. A. Al-Mazroa e H. Z. Alkhathlan, “Corrosion inhibitory action of some plant extracts on the corrosion of mild steel in acidic media,” Arabian Journal of Chemistry, pp. 1-7, 2012.

I.B. Obot, N.O. Obi-Egbedi, S.A. Umoren, “Antifungal drugs as corrosion inhibitors for aluminium in 0.1 M HCl,” Corrosion Science, vol. 51, issue 8, pp. 1868-1875, 2009.

A. Yıldırım, M. Çetin, “Synthesis and evaluation of new long alkyl side chain acet- amide, isoxazolidine and isoxazoline derivatives as corrosion inhibitors,” Corrosion Science, vol. 50, issue 1, pp.155-165, 2008.

A. M. Abdel-Gaber, B.A. Abd-El-Nabey, E. Khamis, D.E. Abd-El-Khalek. “A natural extract as scale and corrosion inhibitor for steel surface in brine solution”. Desalina tion. vol. 278, Issue 1-2, pp. 337-342, 2011

G. Blustein, R. Romagnoli, J.A. J. “Zinc basic benzoate as eco-friendly steel corrosion inhibitor pigment for anticorrosive epoxy-coatings,” Colloids and Surfaces A: Physi- cochemical and Engineering Aspects, vol. 290, Issue 1-3, pp. 7-18, 2006.

P.C. Okafor, M.E. Ikpi, I.E. Uwah, E.E. Ebenso, U.J. Ekpe, S.A. Umoren. “Inhibitory action of Phyllanthus amarus extracts on the corrosion of mild steel in acidic media,” Corrosion Science, vol. 50, Issue 8, pp. 2310-2317, 2008.

ASM Handbook, “Corrosion Fundamentals, Testing, and Protection”, Vol .13A, ASM,2003.

E. Bardal, Corrosion and protection, London: Springer, 2004.

Norbert D. Greene, Mars Guy Fontana,”Corrosion engineering”, MC Grow-Hill,1978.

Published
2019-03-15
How to Cite
Mohammed, S. (2019). Effect Use of Two Chemical Compounds Sodium Nitrate and Sodium Silicate as Corrosion Inhibitor to Steel Reinforcement. Al-Khwarizmi Engineering Journal, 14(2), 123- 128. https://doi.org/10.22153/kej.2018.11.006