Diagnosis and rehabilitation of real reinforced concrete structures in coastal areas

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dc.contributor.authorCarvajal, A. M.
dc.contributor.authorVera, R.
dc.contributor.authorCorvo, F.
dc.contributor.authorCastaneda, A.
dc.date.accessioned2024-01-10T12:04:55Z
dc.date.available2024-01-10T12:04:55Z
dc.date.issued2012
dc.description.abstractA diagnosis and rehabilitation study of two reinforced concrete structures located in coastal areas in two different climates is presented. Building 1 was constructed in the north of Chile in 1949, at a distance of 600 m from the coastline, in a seismic zone. Cracks, steel corrosion, loosening of concrete cover and slab deformations have been identified. Building 2 was constructed in Habana City, Cuba, in 1973. It is located at <100 m from the shore. The structure of building 1 shows severe localised damage: loosening of reinforced cover and intense reinforcement bar corrosion due to high deposits of sea salts. High chloride and sulphate content in the concrete mass, low compressive strength in walls and slabs, high level of steel corrosion and zones with the existence of rust instead of steel were reported. A structural rehabilitation project to ensure an increase in service life is not possible. On the contrary, in case of building 2, a possible rehabilitation procedure is recommended. Elimination of chloride contaminated concrete and the use of special mortar is an option, and electrochemical chloride extraction and incorporation of sacrificial anodes is another. An important conclusion is made: the use of chloride and sulphate contaminated aggregates is more dangerous than the penetration of these two contaminants from the external environment for buildings constructed in coastal zones.
dc.fechaingreso.objetodigital2024-05-06
dc.format.extent8 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1179/1743278211Y.0000000018
dc.identifier.issn1478-422X
dc.identifier.urihttps://doi.org/10.1179/1743278211Y.0000000018
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/75908
dc.identifier.wosidWOS:000298754600010
dc.information.autorucConstrucción Civil;Carvajal A;S/I;99804
dc.issue.numero1
dc.language.isoen
dc.nota.accesoSin adjunto
dc.pagina.final77
dc.pagina.inicio70
dc.publisherMANEY PUBLISHING
dc.revistaCORROSION ENGINEERING SCIENCE AND TECHNOLOGY
dc.rightsregistro bibliográfico
dc.subjectReinforced concrete
dc.subjectLow compressive strength
dc.subjectCoastal zones
dc.subjectReinforcement bar corrosion
dc.subjectChloride and sulphate attack
dc.subjectDurability
dc.subjectMARINE-ENVIRONMENT
dc.subjectCHLORIDE-INGRESS
dc.subjectEXPOSURE
dc.subjectDURACON
dc.subjectDURABILITY
dc.subjectGULF
dc.subject.ods12 Responsible Consumption and Production
dc.subject.odspa12 Producción y consumo responsable
dc.titleDiagnosis and rehabilitation of real reinforced concrete structures in coastal areas
dc.typeartículo
dc.volumen47
sipa.codpersvinculados99804
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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