A Study of Three Corrosion Inhibitors for Reinforcing Steel in SPS Solution by Electrochemical Methods

Authors

Bing ZHAO, Department of Chemistry,State Key Laboratory for Physical Chemistry of Solid Surfaces,Xiamen University,Xiamen 361005,China;
Rong-gui DU, Department of Chemistry,State Key Laboratory for Physical Chemistry of Solid Surfaces,Xiamen University,Xiamen 361005,China;
Chang-jian LIN, Department of Chemistry,State Key Laboratory for Physical Chemistry of Solid Surfaces,Xiamen University,Xiamen 361005,China;

Corresponding Author

Chang-jian LIN(cjlin@xmu.edu.cn)

Abstract

Some electrochemical techniques such as linear polarization,electrochemical noise and EIShave been employedto study the inhibition behavior of N-lauroyl sarcosinate,β-sodium glycerophosphate and D-sodium gluconate for the reinforcing steel immersed in simulated concrete pore solution(SPS) with NaCl addition.The results show that D-sodium gluconatehas an obvious inhibitive effect for the reinforcing steelin containingCl~(-)SPS solution.It has been proposed that the corrosion inhibition of D-sodium gluconate is due to its competitive adsorption and precipitation on steel surface in the simulated concrete environment.

Keywords

Inhibitor, Reinforcing steel, Corrosion, Electrochemical techniques

DOI Link

https://doi.org/10.61558/2993-074X.1672

Publication Date

2005-11-28

Online Available Date

2005-11-28

Revised Date

2005-11-28

Received Date

2005-11-28

Recommended Citation

Bing ZHAO, Rong-gui DU, Chang-jian LIN. A Study of Three Corrosion Inhibitors for Reinforcing Steel in SPS Solution by Electrochemical Methods[J]. Journal of Electrochemistry, 2005 , 11(4): 382-386.
DOI: 10.61558/2993-074X.1672
Available at: https://jelectrochem.xmu.edu.cn/journal/vol11/iss4/5

References

[1]Monticelli C,Frignan iA,TrabanelliG.A study on cor-rosion inh ib itors for concrete app lication[J].Cem.Concr.Res,2000,30:635~642.
[2]Tritthart J.Transport of a surface-app lied corrosion in-h ib itor in cem ent paste and concrete[J].Cem.Concr.Res.,2003,33:829~834.
[3]Bertocc i U,Gabrielli C,Huet F,et al.Noise resistanceapp lied to corrosion m easurem ents 1.theoretical analy-sis[J].J.E lectrochem.Soc.,1997(144):31~37.
[4]Refaey S A M.Inh ib ition of chloride p itting corrosion ofm ild steel by sod ium gluconate[J].App l.Surf.Sc i.,2000,157:199~206.
[5]X iao H,M ansfeld F.Evaluation of coating degradationw ith electrochem ical impedance spectroscopy and elec-trochem ical noise analysis[J]J.E lectrochem.Soc.,1994,141:2 332~2 337.
[6]Aballe A,Bethencourt M,Botana.J F,et al.Usingwavelets transform in the analysis of electrochem icalnoise data[J].E lectroch im.Acta,1999,44:4 805~4 816.
[7]Hu Ronggang(胡融刚).E lectrochem ical study on corro-sion Process of steel rebar/concrete system(钢筋/混凝土体系腐蚀过程的电化学研究)[D].X iam en:X ia-m en Un iverc ity,2004-04.
[8]Bertocc i U,Frydm an J,Gabrielli C,et al,Analysis ofelectrochem ical noise by power spectral density app liedto corrosion stud ies[J].J.E lectrochem.Soc.,1998,145:2 780~2 785.