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Accelerated action of external sulfate and chloride to study corrosion of tensile steel in reinforced concrete

2017-10Artigo científico Acesso aberto
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dc.contributor.authorSilva, M. A. G.
dc.contributor.authorCunha, M. P.
dc.contributor.authorPinho-Ramos, A.
dc.contributor.authorFonseca, B. Sena da
dc.contributor.authorPinho, F. F. S.
dc.contributor.institutionDEC - Departamento de Engenharia Civil
dc.contributor.institutionUNIC - Centro de Investigação em Estruturas e Construção
dc.contributor.pblCSIC - Consejo Superior de Investigaciones Cientificas
dc.date.accessioned2018-10-15T22:12:22Z
dc.date.available2018-10-15T22:12:22Z
dc.date.issued2017-10
dc.descriptionThe authors are grateful to Fundacao para a Ciencia e Tecnologia for partial financing of the work under Project PTDC/ECM/100538/2008.
dc.description.abstractCorrosion of the reinforcing steel may cause significant loss of strength of reinforced concrete structures. The study focuses on accelerating such corrosion and examining the degradation of (i) the compressive strength of concrete due to sodium sulfate in a wet atmosphere; and (ii) the flexural strength by a solution of sodium sulfate and sodium chloride. Three types of concrete were used and different beam specimens were reinforced by steel rebars of different diameters (6, 8 and 10mm), part of the beams being pre-cracked. The concrete with least strength allowed higher sulfate penetration along the entire process and the compressive strength increased slightly, possibly due to lower porosity of concrete after contamination. The results of the flexural tests showed decrease of strength in all cases. Pre-cracked beams exhibited smaller influence of porosity of concrete. Beams with 6mm rebars showed the largest loss of strength due to the contamination and corrosion process.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent3483484
dc.identifier.doi10.3989/mc.2017.10116
dc.identifier.issn0465-2746
dc.identifier.otherPURE: 5603770
dc.identifier.otherPURE UUID: 545b16e4-20f8-4f1b-b46f-c3e80ebe45d7
dc.identifier.otherScopus: 85032350490
dc.identifier.otherWOS: 000417325000010
dc.identifier.otherORCID: /0000-0001-9496-4991/work/54523622
dc.identifier.otherORCID: /0000-0003-0344-1867/work/53864471
dc.identifier.urihttp://www.scopus.com/inward/record.url?scp=85032350490&partnerID=8YFLogxK
dc.identifier.urlhttps://www.scopus.com/pages/publications/85032350490
dc.language.isoeng
dc.peerreviewedyes
dc.subjectConcrete
dc.subjectCorrosion
dc.subjectDurability
dc.subjectSteel
dc.subjectSulphate attack
dc.subjectBuilding and Construction
dc.subjectGeneral Materials Science
dc.subjectMechanics of Materials
dc.titleAccelerated action of external sulfate and chloride to study corrosion of tensile steel in reinforced concreteen
dc.typejournal article
degois.publication.issue328
degois.publication.titleMateriales de Construcción
degois.publication.volume67
dspace.entity.typePublication
rcaap.rightsopenAccess

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