Concrete Containing Natural Pozzolans: New Challenges for Internal Curing

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dc.contributor.authorEspinoza Hijazin, Gaston
dc.contributor.authorPaul, Alvaro
dc.contributor.authorLopez, Mauricio
dc.date.accessioned2024-01-10T13:11:58Z
dc.date.available2024-01-10T13:11:58Z
dc.date.issued2012
dc.description.abstractNatural pozzolans (NP) have proven to be an effective supplementary cementitious material; however, the replacement of ordinary portland cement (OPC) with NP might increase the autogenous and drying shrinkage of concrete. Internal curing (IC) might be of great help when using NP because it can promote the pozzolanic reactions and reduce shrinkage. The aim of this research is to assess the effect of IC in concrete containing NP. Results indicate that a 39% replacement of OPC with NP decreased compressive strength by 15%, decreased chloride ion permeability by 66%, and increased autogenous shrinkage by 40%. IC with prewetted lightweight aggregate showed no significant effect in compressive strength or permeability, but it decreased autogenous shrinkage by up to 58%. NP used in this investigation presented higher chemical shrinkage than OPC, making IC less effective as levels of NP increased. The important decrease in permeability attained through the use of NP and the higher chemical shrinkage of NP makes IC a critical technology to consider in concrete mixtures with NP. DOI: 10.1061/(ASCE)MT.1943-5533.0000421. (C) 2012 American Society of Civil Engineers.
dc.description.funderChilean Council for Science and Technology Research (Conicyt) through Fondecyt Project
dc.fechaingreso.objetodigital2024-04-25
dc.format.extent8 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1061/(ASCE)MT.1943-5533.0000421
dc.identifier.issn0899-1561
dc.identifier.urihttps://doi.org/10.1061/(ASCE)MT.1943-5533.0000421
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78123
dc.identifier.wosidWOS:000311387900005
dc.information.autorucIngeniería;Espinoza G;S/I;141161
dc.information.autorucIngeniería;Lopez M;S/I;7202
dc.information.autorucIngeniería;Paul A;S/I;141109
dc.issue.numero8
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final988
dc.pagina.inicio981
dc.publisherASCE-AMER SOC CIVIL ENGINEERS
dc.revistaJOURNAL OF MATERIALS IN CIVIL ENGINEERING
dc.rightsacceso restringido
dc.subjectConcrete
dc.subjectCement
dc.subjectCuring
dc.subjectCompressive strength
dc.subjectAutogenous shrinkage
dc.subjectPermeability
dc.subjectInternal curing
dc.subjectSCM
dc.subjectHIGH-PERFORMANCE CONCRETE
dc.subjectHIGH-STRENGTH CONCRETE
dc.subjectLIGHTWEIGHT AGGREGATE
dc.subjectAUTOGENOUS SHRINKAGE
dc.subjectCOMPRESSIVE STRENGTH
dc.subjectBLENDED CEMENTS
dc.subjectEFFICIENCY
dc.subjectDEFORMATION
dc.subjectPREVENTION
dc.subjectVOLUME
dc.subject.ods12 Responsible Consumption and Production
dc.subject.odspa12 Producción y consumo responsable
dc.titleConcrete Containing Natural Pozzolans: New Challenges for Internal Curing
dc.typeartículo
dc.volumen24
sipa.codpersvinculados141161
sipa.codpersvinculados7202
sipa.codpersvinculados141109
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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