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Corresponding Author

Shengxian Wang

Abstract

A new polymer E Twas synthesized and used as a corrosion inhibitor for reinforced concrete. The inhibitive behavior and mechanism were studied with linear polarization ,Tafel polarization,EIS and XPS method in simulated pore solution system with concrete samples.The result showed that the polymer was a mixing type inhibitor. A 1% dosage was sufficient to imhibit the corrosion of steel in simulated pore solution system. The salt endurance was enhanced from 0.02 mol/L to 0.10 mol/L.The result also showed the good synergetic effect of NaNO 2,especially in low NaNO 2 concentration.The EIS showed that E_T has dual function on reinforced concrete,i.e.,densifying the concrete pore structure and adsorbing on the surface of the reinforcing rebar.

Keywords

Concrete, Corrosion, Inhibitor

Publication Date

1999-02-28

Online Available Date

1999-02-28

Revised Date

1999-02-28

Received Date

1999-02-28

References

1BerkeNS.MaterialPerformance,1989,10:412WO87/069583PingGu,EliotS,HristovaRetal.ACIMaterialsJournal,1997,94(5):3854PearsonRG.J.Am.Chem.Soc.1963,85:35335GoniS.,AndradeC.CementandConcreteResearch,1990,20:5256刘晓敏,史志明,林海潮,宋光铃,曹楚南.中国腐蚀与防护学报,1997,17(1):197张鉴清,孙国庆,曹楚南.腐蚀科学与防护技术,1994,6(4):3188RodríguezP,RamírezE,GonzálezJA.MagazineofConcreteResearch,1994,46(6):819MccarterWJ.CenentandConcreteResearch,1990,20;891

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