The influence of barium sulphate and barium carbonate on the Portland cement

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dc.contributor.authorZezulová, Anežkacs
dc.contributor.authorStaněk, Theodorcs
dc.contributor.authorOpravil, Tomášcs
dc.coverage.issue2016cs
dc.coverage.volume151cs
dc.date.issued2016-08-03cs
dc.description.abstractShielding of different types of radiation should be studied these days when there is a great development in the field of nuclear science. Barium ions can shield different type of radiation, therefore, by incorporation of barium ions into the system of Portland clinker, a binder with shielding properties can be made. The work is focused on influence of barium ions on the formation of Portland clinker and its properties. As a source of barium, barium sulphate and barium carbonate were added to raw meal. Clinkers and cements with a different amount of barium were prepared and the effect of barium on the clinker and cement properties respectively was studied. By Rietveld analysis (using X-Ray diffraction) and microscopic point counting method, the ratio of clinker phases was studied. With increasing amount of barium, the alite : belite ratio was decreasing and the amount of free lime was increasing. Sulphate decelerates the decreasing ratio and causes grow of alite crystals to great dimensions. The presence of barium in different phases was observed by SEM with EDS. The highest amount of barium was found in belite and clinker melt. In clinker melt, conglomerations of barium were formed. Furthermore, a difference in formation temperature of clinker phases was observed and some elementary tests were done on prepared cements according to the European standards.en
dc.formattextcs
dc.format.extent42-49cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationProcedia Engineering. 2016, vol. 151, issue 2016, p. 42-49.en
dc.identifier.doi10.1016/j.proeng.2016.07.358cs
dc.identifier.issn1877-7058cs
dc.identifier.orcid0000-0003-3851-3939cs
dc.identifier.other133426cs
dc.identifier.urihttp://hdl.handle.net/11012/70103
dc.language.isoencs
dc.publisherElsevier Ltd.cs
dc.relation.ispartofProcedia Engineeringcs
dc.relation.urihttp://www.sciencedirect.com/science/article/pii/S1877705816317465cs
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1877-7058/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/cs
dc.subjectPortland clinkeren
dc.subjectaliteen
dc.subjectbeliteen
dc.subjectbarium oxideen
dc.subjectPortland cementen
dc.subjectraw mealen
dc.subjectbarium carbonateen
dc.subjectbarium sulphateen
dc.subjectPortlandský slínek
dc.subjectalit
dc.subjectbelit
dc.subjectoxid barnatý
dc.subjectPortlandský cement
dc.subjectsurovinová moučka
dc.subjectuhličitan barnatý
dc.subjectsíran barnatý
dc.titleThe influence of barium sulphate and barium carbonate on the Portland cementen
dc.title.alternativeVliv síranu a uhličitanu barnatého na Portlandský cementcs
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-133426en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:38:02en
sync.item.modts2025.01.17 16:48:56en
thesis.grantorVysoké učení technické v Brně. . Výzkumný ústav stavebních hmot, a.s.cs
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Centrum materiálového výzkumucs
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