An updated look at drying shrinkage of Portland and blended Portland cement concretes

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dc.contributor.authorVidela, C.
dc.contributor.authorAguilar, C.
dc.date.accessioned2025-01-21T01:05:58Z
dc.date.available2025-01-21T01:05:58Z
dc.date.issued2006
dc.description.abstractNational and overseas reports clearly show that a significant proportion of concrete construction problems are associated with drying shrinkage. These results could be a result of few available long-term drying shrinkage data and changes of the behaviour of concrete mixes used nowadays. Therefore, poor estimates of drying shrinkage strains from prediction models could impair the performance and service life of concrete structures. The objective of the current research was to analyse the effect of mix design parameters on drying shrinkage of concretes made with Portland and blended Portland cements, considering 30 mixes that are commonly used in local construction, tested up to 1350 days of drying. It was concluded that, when using rapid-hardening cement of any type, a larger maximum aggregate size and lower water content reduces drying shrinkage. Cement and aggregate type are shown to have a significant effect on drying shrinkage time function and magnitude. Experimental results were compared with calculated drying shrinkage strains estimated by ACI 209, CEB MC90, B3, GL 2000, Sakata 1993 and Sakata 2001 models. It was concluded that none of the shrinkage prediction models adequately reproduced the observed shrinkage behaviour of concrete made with Chilean Portland and blended Portland cements, underestimating the actual long-term drying shrinkage strains.
dc.fuente.origenWOS
dc.identifier.issn0024-9831
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/96058
dc.identifier.wosidWOS:000240030300005
dc.issue.numero7
dc.language.isoen
dc.pagina.final476
dc.pagina.inicio459
dc.revistaMagazine of concrete research
dc.rightsacceso restringido
dc.subject.ods12 Responsible Consumption and Production
dc.subject.odspa12 Producción y consumo responsable
dc.titleAn updated look at drying shrinkage of Portland and blended Portland cement concretes
dc.typeartículo
dc.volumen58
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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