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Influence of limestone filler and viscosity-modifying admixture on the shrinkage of self-compacting concrete

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Influence of limestone filler and viscosity-modifying admixture on the shrinkage of self-compacting concrete

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dc.contributor.author Valcuende Payá, Manuel Octavio es_ES
dc.contributor.author Marco Serrano, Empar es_ES
dc.contributor.author Parra, C. es_ES
dc.contributor.author Serna Ros, Pedro es_ES
dc.date.accessioned 2014-10-27T16:08:34Z
dc.date.available 2014-10-27T16:08:34Z
dc.date.issued 2012-04
dc.identifier.issn 0008-8846
dc.identifier.uri http://hdl.handle.net/10251/43607
dc.description.abstract The aim of this experimental work is to study shrinkage evolution with age in self-compacting concretes (SCC) made with w/c = 0.6 and different limestone filler and viscosity-modifying admixture (VMA) contents. The results show that limestone fillers speed up hydration reactions and provide a finer porous structure. As a result, when specimens are hardened under water, SCC made with limestone fillers tends to shrink, since the water only penetrates the outer layers of the specimen, while the interior is subject to self-desiccation. If the concrete contains substantial air content (3.2%) the water finds it easier to penetrate and the concrete swells. When hardening takes place in the open air, autogenous shrinkage in SCC is lower than in normally-vibrated concretes (NVC) and the higher the fines content, the lower the shrinkage. This is more than likely due to the use of limestone filler as addition, finer porous structure and higher amount of absorbed water from the aggregate which compensates for the auto-desiccation of the concrete. On the whole, drying shrinkage in SCC is greater than in NVC. However, when filler is replaced by VMA the porous structure is coarser and shrinkage is reduced by 33%, thanks to the lower capillary pressure. This means that due to the reduction in autogenous and drying shrinkage, SCC made solely with VMA presents 7.7% lower total shrinkage than NVC. In SCC made with limestone filler, total shrinkage is only slightly higher than in NVC, the differences being under 9.2%. es_ES
dc.description.sponsorship The authors of this paper would like to thank the Consejeria de Universidades, Empresa e Innovacion de la Comunidad Autonoma of the Region of Murcia for funding the SUE-ICI 07/02-0013 project, in which the Region of Murcia Construction Technology Centre (CTCON) and the companies HOLCIM and SIKA Spain also took part. Additionally the laboratory technicians R. Calabuig and J. Martinez are also thanked for their disinterested collaboration in the tests. The translation of this paper was funded by the Universidad Politecnica de Valencia. en_EN
dc.language Español es_ES
dc.publisher Elsevier es_ES
dc.relation Consejería de Universidades, Empresa e Innovación de la Comunidad Autónoma of the Region of Murcia [project SUE-ICI 07/02-0013] es_ES
dc.relation Universidad Politécnica de Valencia es_ES
dc.relation.ispartof Cement and Concrete Research es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Filler (D) es_ES
dc.subject Pore size distribution (B) es_ES
dc.subject Shrinkage (C) es_ES
dc.subject Self-compacting concrete es_ES
dc.subject.classification CONSTRUCCIONES ARQUITECTONICAS es_ES
dc.title Influence of limestone filler and viscosity-modifying admixture on the shrinkage of self-compacting concrete es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.cemconres.2012.01.001
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Construcciones Arquitectónicas - Departament de Construccions Arquitectòniques es_ES
dc.description.bibliographicCitation Valcuende Payá, MO.; Marco Serrano, E.; Parra, C.; Serna Ros, P. (2012). Influence of limestone filler and viscosity-modifying admixture on the shrinkage of self-compacting concrete. Cement and Concrete Research. 42(4):583-592. doi:10.1016/j.cemconres.2012.01.001 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.cemconres.2012.01.001 es_ES
dc.description.upvformatpinicio 583 es_ES
dc.description.upvformatpfin 592 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 42 es_ES
dc.description.issue 4 es_ES
dc.relation.senia 223011


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