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Article: Corrosion rate measurement by using polarization resistance method for microcell and macrocell corrosion: Theoretical analysis and experimental work with simulated concrete pore solution

TitleCorrosion rate measurement by using polarization resistance method for microcell and macrocell corrosion: Theoretical analysis and experimental work with simulated concrete pore solution
Authors
CHEN, LSu, RKL
KeywordsReinforcement corrosion
Corrosion rate
Macrocell corrosion
Polarization resistance method
Stern Geary equation
Issue Date2021
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/conbuildmat
Citation
Construction and Building Materials, 2021, v. 267, p. article no. 121003 How to Cite?
DOI: http://dx.doi.org/10.1016/j.conbuildmat.2020.121003
AbstractThe applicability of the polarization resistance method to microcell and macrocell corrosion (MMC) has been often ignored. To address this research gap, this study investigates corrosion rate measurement by using the polarization resistance method on MMC of reinforced concrete. A modified Stern-Geary equation for MMC is proposed to consider the effects of the macrocell current. The Tafel kinetic parameters and polarization resistance are obtained by conducting potentiodynamic polarization tests in a simulated concrete pore solution. The proposed equation is validated for both active and passive steel rebars. A significant overestimation is found for passive steel rebars while a substantial measurement error is found for active steel rebars due to the macrocell current.
Persistent Identifierhttp://hdl.handle.net/10722/301380
ISSN
0950-0618
2023 Impact Factor: 7.4
2023 SCImago Journal Rankings: 1.999
ISI Accession Number ID
WOS:000604573000071

 

DC FieldValueLanguage
dc.contributor.authorCHEN, L-
dc.contributor.authorSu, RKL-
dc.date.accessioned2021-07-27T08:10:12Z-
dc.date.available2021-07-27T08:10:12Z-
dc.date.issued2021-
dc.identifier.citationConstruction and Building Materials, 2021, v. 267, p. article no. 121003-
dc.identifier.issn0950-0618-
dc.identifier.urihttp://hdl.handle.net/10722/301380-
dc.description.abstractThe applicability of the polarization resistance method to microcell and macrocell corrosion (MMC) has been often ignored. To address this research gap, this study investigates corrosion rate measurement by using the polarization resistance method on MMC of reinforced concrete. A modified Stern-Geary equation for MMC is proposed to consider the effects of the macrocell current. The Tafel kinetic parameters and polarization resistance are obtained by conducting potentiodynamic polarization tests in a simulated concrete pore solution. The proposed equation is validated for both active and passive steel rebars. A significant overestimation is found for passive steel rebars while a substantial measurement error is found for active steel rebars due to the macrocell current.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/conbuildmat-
dc.relation.ispartofConstruction and Building Materials-
dc.subjectReinforcement corrosion-
dc.subjectCorrosion rate-
dc.subjectMacrocell corrosion-
dc.subjectPolarization resistance method-
dc.subjectStern Geary equation-
dc.titleCorrosion rate measurement by using polarization resistance method for microcell and macrocell corrosion: Theoretical analysis and experimental work with simulated concrete pore solution-
dc.typeArticle-
dc.identifier.emailSu, RKL: klsu@hkucc.hku.hk-
dc.identifier.authoritySu, RKL=rp00072-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.conbuildmat.2020.121003-
dc.identifier.scopuseid_2-s2.0-85092232894-
dc.identifier.hkuros323656-
dc.identifier.volume267-
dc.identifier.spagearticle no. 121003-
dc.identifier.epagearticle no. 121003-
dc.identifier.isiWOS:000604573000071-
dc.publisher.placeNetherlands-

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