Effect of Nitrite Ions on Polarization Behavior of Steel Immersed in Simulated Concrete Pore Environments

Zhong Lu Cao; Makoto Hibino; Hiroki Goda

doi:10.4028/www.scientific.net/AMM.368-370.919

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 368-370Effect of Nitrite Ions on Polarization Behavior of...

Effect of Nitrite Ions on Polarization Behavior of Steel Immersed in Simulated Concrete Pore Environments

Abstract:

The influence of nitrite concentration on the linear polarization curves of steel, Tafel slope and Stern-Geary constant B have been investigated in three different pH environments simulating the highly alkaline environment, carbonated environment and neutral environment that really existed on the surface of steel in concrete. The results indicate that when the steel is in passive state, the presence of nitrite has little influence on anodic/cathodic polarization curves and Stern-Geary constant B; but when the steel is corroded, the presence of nitrite not only reduces the current density of anodic polarization curve but also decreases the value of Stern-Geary constant B. If this influence is not considered in practical corrosion measurement, the corrosion current will be overestimated.

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Periodical:

Applied Mechanics and Materials (Volumes 368-370)

Pages:

919-924

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.368-370.919

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Online since:

August 2013

Authors:

Zhong Lu Cao, Makoto Hibino, Hiroki Goda

Keywords:

Inhibiting Mechanism, Nitrite, Steel Corrosion, Stern-Geary Constant, Tafel Slope

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References

[1] M. Stern, A.L. Geary. Journal of the electrochemical society, 104(1957) 56-63.

Google Scholar

[2] Z.L. Cao, M. Hibino, H. Goda. Applied Mechanics and Materials, 193-194(2012) 314-318.

Google Scholar

[3] E.E. Stansbury, R.A. Buchanan. Fundamentals of Electrochemical Corrosion (2000) 233-243.

Google Scholar

[4] M.B. Valcarce, M. Vazquez. Materials Chemistry and Physics, 115(2009) 313-321.

Google Scholar

[5] B. EL-Jazairi, N.S. Berke and W.R. Grace. The Use of Calcium Nitrite as a Corrosion Inhibiting Admixture to Steel Reinforcement in Concrete. Corrosion of Reinforcement in Concrete; Wishaw, Warwickshire; UK; 21-24 May 1990. pp.571-585. (1990).

Google Scholar

[6] C.M. Hansson, L. Mammoliti et al. Cement and Concrete Research 28 (12)(1998) 1775-1781.

Google Scholar