Corrosion products of reinforcement in concrete in marine and industrial environments

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dc.contributor.authorVera, R.
dc.contributor.authorVillarroel, M.
dc.contributor.authorCarvajal, A. M.
dc.contributor.authorVera, E.
dc.contributor.authorOrtiz, C.
dc.date.accessioned2024-01-10T13:12:04Z
dc.date.available2024-01-10T13:12:04Z
dc.date.issued2009
dc.description.abstractThe corrosion products formed on embedded steel in concrete under simulated marine and industrial conditions and natural marine environment were studied. A 0.50 water/cement ratio concrete was used concrete 3.5% NaCl and 180 g L(-1) of H(2)SO(4) with 70 ppm of chloride ions solutions were used to simulate the synthetic medium. The initial electrochemical variables of the steel and pH, chlorides and sulfates profiles were measured according to the concrete depth. The morphology of the corrosive attack was determined electron microscopy (SEM), and the composition of the corrosion products was determined via scanning zer and an X-ray diffractorneter (XRD). The protective power of the corrosion products was evaluated through anodic polarization curves in a saturated Ca(OH)(2) Solution. The results from XRD and SEM show that all the resulting corrosion products correspond to lepidocrocite, goethite and magnetite mixtures: moreover, akaganeite was also identified under natural and simulated marine environments. Siderite was only detected in samples exposed to a natural marine environment. Concerning the protective nature of the corrosion products, these show lower performance in a simulated industrial environment, where the corrosion rate of the steel is up to 1.48 mu m year(-1). (C) 2008 Elsevier B.V. All rights reserved.
dc.description.funderDireccion de Investigacion of the Pontificia Universidad Catolica de Valparaiso, Chile
dc.fechaingreso.objetodigital01-04-2024
dc.format.extent8 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.matchemphys.2008.09.063
dc.identifier.issn0254-0584
dc.identifier.urihttps://doi.org/10.1016/j.matchemphys.2008.09.063
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78134
dc.identifier.wosidWOS:000263249600087
dc.information.autorucConstrucción Civil;Carvajal A;S/I;99804
dc.issue.numero1
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final474
dc.pagina.inicio467
dc.publisherELSEVIER SCIENCE SA
dc.revistaMATERIALS CHEMISTRY AND PHYSICS
dc.rightsacceso restringido
dc.subjectCorrosion
dc.subjectSteel
dc.subjectReinforced concrete
dc.subjectMarine environment
dc.subjectIndustrial environment
dc.subjectCorrosion products
dc.subjectCARBON-STEEL
dc.subjectRUST
dc.subjectDURABILITY
dc.subjectEXPOSURE
dc.subjectDURACON
dc.subject.ods12 Responsible Consumption and Production
dc.subject.odspa12 Producción y consumo responsable
dc.titleCorrosion products of reinforcement in concrete in marine and industrial environments
dc.typeartículo
dc.volumen114
sipa.codpersvinculados99804
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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