Diagnosis and rehabilitation possibilities of real reinforced concrete structure

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dc.contributor.authorMaria Carvajal, Ana
dc.contributor.authorAraya, Gerardo
dc.contributor.authorMaturana, Pablo
dc.date.accessioned2024-01-10T12:38:21Z
dc.date.available2024-01-10T12:38:21Z
dc.date.issued2008
dc.description.abstractA diagnosis and rehabilitation study of a reinforced concrete structure is presented in this paper. The Public building was corstructed in 1939, located in marine environment, distant less than I km of the coastal border, in a seismic zone, that for more than one decade has presented pathologies like: cracks, steel corrosion, loosening of concrete coverings and slab deformations. Quantitative analyses of profile chloride and sulphate ions to the concrete in different zones of the building, scanner of the reinforcements with Ferroscan, measurements of corrosion potential, compressive strength and capillary absorption were made. The quantity of chloride and sulphate ions in the concrete exceeded in 1.000% the amount acceptable by Chilean standards: 1,20 kg Cl- /m(3) concrete and 0,600 kg of SO42- /m(3) concrete.
dc.description.abstractThe structural steel was oxidized even not existing in some zones, in according with the Ferroscan images and confirmed with appropriated tools.
dc.description.abstractIn addition, the compressive strength in the last 10 years has diminished from 25 MPa to 20 MPa in some zones. Corrosion potential of reinforcements presented values of high probability of corrosion (- 550 mV in front of Cu/CuSO4 electrode).
dc.description.abstractA structural rehabilitation project have two principal objectives, to provide a compressive strength to the structure during its service life, and to guarantee restitution of the structural capacity, in agree with the use of the building, the rehabilitation project resources, and others.
dc.description.abstractIn the present study, it was possible to conclude that it is not possible to formulate a structural rehabilitation project that assures any service life to the building, even more, the present use of the building is dangerous for the people who work in it.
dc.description.funderCivil Construction School of Pontificia Universidad Catolica de Chile
dc.format.extent7 páginas
dc.fuente.origenWOS
dc.identifier.issn0718-915X
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/77029
dc.identifier.wosidWOS:000259129200010
dc.information.autorucConstrucción Civil;Araya G;S/I;124980
dc.information.autorucConstrucción Civil;Carvajal A;S/I;99804
dc.information.autorucConstrucción Civil;Maturana P;S/I;60606
dc.issue.numero1
dc.language.isoen
dc.nota.accesoSin adjunto
dc.pagina.final111
dc.pagina.inicio105
dc.publisherPONTIFICIA UNIV CATOLICA CHILE, ESCUELA CONSTRUCCION CIVIL
dc.revistaREVISTA DE LA CONSTRUCCION
dc.rightsregistro bibliográfico
dc.subjectreinforced concrete
dc.subjectlow compressive strength
dc.subjectconcrete degradation
dc.subjectsteel corrosion
dc.subjectchloride and sulphate attack
dc.subjectdurability
dc.subjectIONS
dc.subject.ods12 Responsible Consumption and Production
dc.subject.odspa12 Producción y consumo responsable
dc.titleDiagnosis and rehabilitation possibilities of real reinforced concrete structure
dc.typeartículo
dc.volumen7
sipa.codpersvinculados124980
sipa.codpersvinculados99804
sipa.codpersvinculados60606
sipa.indexWOS
sipa.indexScielo
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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