Absorption and desorption properties of fine lightweight aggregate for application to internally cured concrete mixtures

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dc.contributor.authorCastro, Javier
dc.contributor.authorKeiser, Lucas
dc.contributor.authorGolias, Michael
dc.contributor.authorWeiss, Jason
dc.date.accessioned2024-01-10T13:10:48Z
dc.date.available2024-01-10T13:10:48Z
dc.date.issued2011
dc.description.abstractRecently, substantial interest has developed in using fine lightweight aggregate for internal curing in concrete. Mixture proportion development for these mixtures requires the specific gravity, water absorption, and water desorption characteristics of the aggregate. This paper presents results from a recent study in which the properties of commercially available expanded shale, clay and slate lightweight aggregates (LWA's) were measured. This research measured the time-dependent water absorption response for the lightweight aggregate. The results indicate that a wide range of 24 h water absorption values exist for commonly used fine lightweight aggregates (e.g., absorption between 6% and 31%). Desorption was measured and it was found that between 85% and 98% of the 24 h absorbed water is released at humidities greater than 93%. These properties can be normalized so that they can be efficiently used in proportioning concrete for internal curing. Normalized plots of absorption and desorption demonstrate benefits for a single function that describes a large class of expanded shale, clay, and slate aggregate for use in internal curing. (C) 2011 Elsevier Ltd. All rights reserved.
dc.description.funderExpanded Shale, Clay and Slate Institute (ESCSI)
dc.fechaingreso.objetodigital21-03-2024
dc.format.extent8 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.cemconcomp.2011.07.006
dc.identifier.eissn1873-393X
dc.identifier.issn0958-9465
dc.identifier.urihttps://doi.org/10.1016/j.cemconcomp.2011.07.006
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/77938
dc.identifier.wosidWOS:000297188700002
dc.information.autorucIngeniería;Castro J ;S/I;15224
dc.issue.numero10
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final1008
dc.pagina.inicio1001
dc.publisherELSEVIER SCI LTD
dc.revistaCEMENT & CONCRETE COMPOSITES
dc.rightsacceso restringido
dc.subjectLightweight aggregate
dc.subjectInternal curing
dc.subjectAbsorption
dc.subjectDesorption
dc.subjectWATER
dc.subjectPASTE
dc.subject.ods12 Responsible Consumption and Production
dc.subject.odspa12 Producción y consumo responsable
dc.titleAbsorption and desorption properties of fine lightweight aggregate for application to internally cured concrete mixtures
dc.typeartículo
dc.volumen33
sipa.codpersvinculados15224
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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