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Improvement of thermal efficiency in cement mortars by using synthetic feldspars

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carlosiii.embargo.terms2023-02-01
dc.affiliation.dptoUC3M. Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Químicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Comportamiento en Servicio de Materialeses
dc.contributor.authorTorres Carrasco, Manuel
dc.contributor.authorEnríquez, E.
dc.contributor.authorTerrón-Menoyo, L.
dc.contributor.authorCabrera, M.J.
dc.contributor.authorMuñoz, D.
dc.contributor.authorFernández, J.F.
dc.contributor.funderMinisterio de Economía y Competitividad (España)es
dc.contributor.funderMinisterio de Ciencia e Innovación (España)es
dc.date.accessioned2021-03-01T09:57:41Z
dc.date.available2023-02-01T00:00:06Z
dc.date.issued2021-02-01
dc.description.abstractThe use of white cements as a building material is widely employed due to its high whiteness and reflectance. However, building materials should adopt better thermal insulation characteristics to contribute for a significant urban heat-islands mitigation. In this work, synthetic feldspar has been evaluated as partial and total replacement of sand in white cement mortars. Thermal, mechanical, and optical properties of these new mortars are characterized by thermal conductivity, compression resistance test and reflectance-colorimetry, respectively. The replacement of sand by synthetic feldspar allows to obtain white mortars having [almost equal to]18% improvement in solar reflectance. Experiment under solar irradiance of mortars having synthetic feldspars reduce the surface heating of the mortar in 25% and the heating transmission to the rear of the mortar in >55%. Moreover, the high crystallinity of the synthetic feldspar reduces the mortar expansion due alkali-silica reactions (ASR). Improvement in reflectance and thermal conductivity resistance of white cement mortar having synthetic feldspar opens a wide range of building material applications.en
dc.description.sponsorshipThe authors express their thanks to the Project MAT-2017-86450-C4-1-R, CSIC NANOMIND project CSIC2015-60E068 and projects CDTI (IDI-20130894 and IDI-20161120) for their financial support. Dra. E. Enríquez is indebted to MINECO for a "Torres Quevedo" contract (ref: PTQ-14-07289), which is co-financed with European Social Funds. Dr. M. Torres-Carrasco is also indebted to MINECO for a postdoctoral fellowship "Juan de la Cierva-Formación" (ref: FJCI-2016-28488).en
dc.format.extent7es
dc.identifier.bibliographicCitationConstruction and building materials Vol.269, 121279, Feb. 2021, 7 pp.en
dc.identifier.doihttps://doi.org/10.1016/j.conbuildmat.2020.121279
dc.identifier.issn0950-0618
dc.identifier.publicationfirstpage1es
dc.identifier.publicationissue121279es
dc.identifier.publicationlastpage7es
dc.identifier.publicationtitleCONSTRUCTION AND BUILDING MATERIALSen
dc.identifier.publicationvolume269es
dc.identifier.urihttps://hdl.handle.net/10016/32056
dc.identifier.uxxiAR/0000026299
dc.language.isoenges
dc.publisherElsevier Ltd.es
dc.relation.projectIDGobierno de España. MAT-2017-86450-C4-1-Res
dc.relation.projectIDGobierno de España. IDI-20130894es
dc.relation.projectIDGobierno de España. IDI-20161120es
dc.relation.projectIDGobierno de España. PTQ-14-07289es
dc.relation.projectIDGobierno de España. FJCI-2016-28488es
dc.rights© 2020 Elsevier Ltd. All rights reserved.en
dc.rightsThis work is licensed under a Creative Commons Attribution- NonCommercial-NoDerivatives 4.0 International License.en
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 Españaes
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaMaterialeses
dc.subject.otherMortarsen
dc.subject.otherFeldsparen
dc.subject.otherSustainabilityen
dc.subject.otherThermal propertiesen
dc.titleImprovement of thermal efficiency in cement mortars by using synthetic feldsparsen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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