Corrosion assessment of steel bars used in reinforced concrete structures by means of eddy current testing

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dc.contributor.authorde Alcantara, Naasson P. [UNESP]
dc.contributor.authorda Silva, Felipe M. [UNESP]
dc.contributor.authorGuimarães, Mateus T. [UNESP]
dc.contributor.authorPereira, Matheus D. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T16:40:27Z
dc.date.available2018-12-11T16:40:27Z
dc.date.issued2015-12-24
dc.description.abstractThis paper presents a theoretical and experimental study on the use of Eddy Current Testing (ECT) to evaluate corrosion processes in steel bars used in reinforced concrete structures. The paper presents the mathematical basis of the ECT sensor built by the authors; followed by a finite element analysis. The results obtained in the simulations are compared with those obtained in experimental tests performed by the authors. Effective resistances and inductances; voltage drops and phase angles of wound coil are calculated using both; simulated and experimental data; and demonstrate a strong correlation. The production of samples of corroded steel bars; by using an impressed current technique is also presented. The authors performed experimental tests in the laboratory using handmade sensors; and the corroded samples. In the tests four gauges; with five levels of loss-of-mass references for each one were used. The results are analyzed in the light of the loss-of-mass and show a strong linear behavior for the analyzed parameters. The conclusions emphasize the feasibility of the proposed technique and highlight opportunities for future works.en
dc.description.affiliationDepartment of Electrical Engineering São Paulo State University—Unesp
dc.description.affiliationUnespDepartment of Electrical Engineering São Paulo State University—Unesp
dc.identifierhttp://dx.doi.org/10.3390/s16010015
dc.identifier.citationSensors (Switzerland), v. 16, n. 1, 2015.
dc.identifier.doi10.3390/s16010015
dc.identifier.file2-s2.0-84952031499.pdf
dc.identifier.issn1424-8220
dc.identifier.scopus2-s2.0-84952031499
dc.identifier.urihttp://hdl.handle.net/11449/168254
dc.language.isoeng
dc.relation.ispartofSensors (Switzerland)
dc.relation.ispartofsjr0,584
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAccelerated corrosion techniques
dc.subjectCorrosion process
dc.subjectEddy current testing
dc.subjectNondestructive testing
dc.subjectReinforced concrete structures
dc.titleCorrosion assessment of steel bars used in reinforced concrete structures by means of eddy current testingen
dc.typeArtigo

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