Effectiveness of shrinkage-reducing admixtures on Portland pozzolan cement concrete

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dc.contributor.authorVidela, C
dc.contributor.authorAguilar, C
dc.date.accessioned2024-01-10T12:38:29Z
dc.date.available2024-01-10T12:38:29Z
dc.date.issued2005
dc.description.abstractDrying shrinkage causes tensile stress in restrained concrete members. Since all structural elements are subject to some degree of restraint, (trying shrinkage is regarded to be one of the main causes of concrete cracking.
dc.description.abstractThe purpose of the present study was to evaluate the effectiveness of SRA in reducing drying shrinkage strain in Portland pozzolan cement concrete. The major variables examined included slump, admixture type and dose, and specimen size. The measured results indicate that any of the admixtures used in the study significantly reduced shrinkage. Concrete manufactured with shrinkage reducing admixtures shrank an average of 43% less than concrete without admixtures. As a ride, the higher the dose of admixture, the higher was its shrinkage reduction performance.
dc.description.abstractThe experimental results were compared to the shrinkage strain estimated with the ACI 209, CEB MC 90, B3, GL 2000, Sakata 1993 and Sakata 2001 models. Although none of these models was observed to accurately describe the behaviour of Portland pozzolan cement concrete with shrinkage reducing admixtures the Sakata 2001 model, with a weighted coefficient of variation of under 30%, may be regarded to be roughly adeqnate.
dc.fechaingreso.objetodigital2024-05-30
dc.format.extent16 páginas
dc.fuente.origenWOS
dc.identifier.doi10.3989/mc.2005.v55.i278.186
dc.identifier.eissn1988-3226
dc.identifier.issn0465-2746
dc.identifier.urihttps://doi.org/10.3989/mc.2005.v55.i278.186
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/77051
dc.identifier.wosidWOS:000229644700003
dc.information.autorucIngeniería;Videla C;S/I;98839
dc.issue.numero278
dc.language.isoes
dc.nota.accesoContenido parcial
dc.pagina.final28
dc.pagina.inicio13
dc.publisherCONSEJO SUPERIOR INVESTIGACIONES CIENTIFICAS-CSIC
dc.revistaMATERIALES DE CONSTRUCCION
dc.rightsacceso restringido
dc.subjectshrinkage
dc.subjectbended cement
dc.subjectpozzolan
dc.subjectorganic admixture
dc.subjectmodelization
dc.subject.ods12 Responsible Consumption and Production
dc.subject.odspa12 Producción y consumo responsable
dc.titleEffectiveness of shrinkage-reducing admixtures on Portland pozzolan cement concrete
dc.typeartículo
dc.volumen55
sipa.codpersvinculados98839
sipa.indexWOS
sipa.trazabilidadCarga SIPA;09-01-2024
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