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dc.contributor.authorRevilla Cuesta, Víctor 
dc.contributor.authorSkaf Revenga, Marta 
dc.contributor.authorSantamaría, Amaia
dc.contributor.authorHernández Bagaces, Jorge J.
dc.contributor.authorOrtega López, Vanesa 
dc.date.accessioned2021-11-18T12:09:47Z
dc.date.available2021-11-18T12:09:47Z
dc.date.issued2021-05
dc.identifier.issn0959-6526
dc.identifier.urihttp://hdl.handle.net/10259/6174
dc.description.abstractThe addition of by-products, such as recycled concrete aggregate and ground granulated blast furnace slag, modify the in-fresh flowability of ordinary self-compacting concrete both initially and over time. A detailed study is presented in this paper of 18 mixtures (SF3 slump-flow class) containing 100% coarse recycled concrete aggregate, two types of cement (CEM I or CEM III/A, the latter with 45% ground granulated blast furnace slag), different contents of fine recycled concrete aggregate (0, 50, or 100%), and three different aggregate powders (ultra-fine limestone powder <0.063 mm, limestone fines 0/0.5 mm, and recycled concrete aggregate 0/0.5 mm). The temporal evolution of slump flow, viscosity, and passing ability, and the values of segregation resistance, air content, fresh and hardened density, and compressive strength were evaluated in all the mixtures. The addition of fine recycled concrete aggregate and CEM III/A improved initial slump flow and passing ability by 6%, due to their higher proportion of fines. Nevertheless, the temporal loss of flowability within 60 min was 5.8% lower when adding natural aggregate and CEM I. Viscosity and air content increased 26% on average following additions of fine recycled concrete aggregate, unlike with additions of ground granulated blast furnace slag. Flowability and strength increased with the addition of limestone fines 0/0.5 mm. According to multi-criteria analyses, the mixtures with CEM III/A, 50% fine recycled concrete aggregate, and limestone fines 0/0.5 mm showed an optimal balance between their flowability (SF2 slump-flow class 60 min after the mixing process), compressive strengths (around 60 MPa), and carbon footprints.en
dc.description.sponsorshipSpanish Ministry MCIU, AEI and ERDF [grant numbers FPU17/03374 and RTI 2018-097079-B-C31]; the Junta de Castilla y León (Regional Government) and ERDF [grant number UIC-231, BU119P17]; the Youth Employment Initiative (JCyL) and ESF [grant number UBU05B_1274]; the University of Burgos [grant number SUCONS, Y135. GI], UPV/EHU (PPGA20/26) and, finally, our thanks also to the Basque Government research group IT1314-19.en
dc.language.isoenges
dc.publisherElsevieres
dc.relation.ispartofJournal of Cleaner Production. 2021, V. 299, 126890en
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectSelf-compacting concreteen
dc.subjectRecycled concrete aggregateen
dc.subjectGround granulated blast furnace slagen
dc.subjectFlowability, viscosity and passing ability evolutionen
dc.subjectSieve segregationen
dc.subjectAir contenten
dc.subject.otherMateriales de construcciónes
dc.subject.otherBuilding materialsen
dc.subject.otherIngeniería civiles
dc.subject.otherCivil engineeringen
dc.titleTemporal flowability evolution of slag-based self-compacting concrete with recycled concrete aggregateen
dc.typeinfo:eu-repo/semantics/articlees
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.relation.publisherversionhttps://doi.org/10.1016/j.jclepro.2021.126890es
dc.identifier.doi10.1016/j.jclepro.2021.126890
dc.relation.projectIDinfo:eu-repo/grantAgreement/MICIU/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/FPU17%2F03374es
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-097079-B-C31/ES/DESARROLLO SOSTENIBLE DE MEZCLAS HIDRAULICAS, A PARTIR DE ESCORIAS DE ACERIA, PARA UNA EDIFICACION MAS ADAPTADA AL CAMBIO CLIMATICO. DISEÑOS A RESISTENCIAS MEDIASes
dc.relation.projectIDinfo:eu-repo/grantAgreement/Junta de Castilla y León//BU119P17//Innovación Competitiva en la Utilización de Escorias Siderúrgicas para la elaboración de Hormigones de Altas Prestaciones. Aplicaciones en la Industrializaciónes
dc.relation.projectIDinfo:eu-repo/grantAgreement/Junta de Castilla y León//UBU05B_1274es
dc.relation.projectIDinfo:eu-repo/grantAgreement/UBU//Y135.GIes
dc.relation.projectIDinfo:eu-repo/grantAgreement/UPV%2FEHU//PPGA20%2F26es
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersiones


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