The Effect of the Composition of a Concrete Mixture on Its Volume Changes

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dc.contributor.authorŤažký, Martincs
dc.contributor.authorBodnárová, Lenkacs
dc.contributor.authorŤažká, Luciacs
dc.contributor.authorHela, Rudolfcs
dc.contributor.authorMeruňka, Milancs
dc.contributor.authorHlaváček, Petrcs
dc.coverage.issue4cs
dc.coverage.volume14cs
dc.date.issued2021-02-09cs
dc.description.abstractThe presented research aims to clarify the specific effect of the individual components of concrete with Portland cement CEM I 42.5 R on the volume changes of concrete. The effect of the filler component was evaluated from the point of view of the composition and type of aggregate (crushed versus mined) and from the point of view of the mineralogical composition of the aggregate. Concrete formulas with a maximum aggregate grain size of 16 and 22 mm were assessed. The effect of the binder component on the shrinkage of the concrete was monitored on the concrete mixtures produced using the same aggregate and maintaining the same strength class of concrete, C 45/55. The effect of the addition of finely ground limestone, finely ground granulated blast furnace slag and coal high-temperature fly ash was monitored. It was found that the maximum aggregate grain and the type of grading curve do not have a significant effect on the volume changes of concrete. Concretes with mined aggregates showed lower shrinkage than concretes with crushed aggregates. The most significant is the effect of the type of aggregate on the volume changes in the first 24 h. Mineral additives have a positive effect on the elimination of the volume changes of concrete, while the addition of high-temperature fly ash proved to be the most suitable.en
dc.formattextcs
dc.format.extent1-26cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMaterials . 2021, vol. 14, issue 4, p. 1-26.en
dc.identifier.doi10.3390/ma14040828cs
dc.identifier.issn1996-1944cs
dc.identifier.orcid0000-0001-7385-1584cs
dc.identifier.orcid0000-0002-4169-7735cs
dc.identifier.orcid0000-0002-3196-6153cs
dc.identifier.orcid0000-0001-6200-1728cs
dc.identifier.orcid0000-0003-2218-5221cs
dc.identifier.other169290cs
dc.identifier.researcheridH-2733-2016cs
dc.identifier.scopus25637043800cs
dc.identifier.urihttp://hdl.handle.net/11012/196749
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMaterialscs
dc.relation.urihttps://www.mdpi.com/1996-1944/14/4/828cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1996-1944/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectconcreteen
dc.subjectvolume changesen
dc.subjectshrinkageen
dc.subjectcrushed and mined aggregateen
dc.subjectfinely ground limestoneen
dc.subjectfinely ground granulated blast furnace slagen
dc.subjectcoal high-temperature fly ashen
dc.titleThe Effect of the Composition of a Concrete Mixture on Its Volume Changesen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-169290en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:45:54en
sync.item.modts2025.01.17 16:38:56en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav technologie stavebních hmot a dílcůcs
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