The influence of lithium silicate impregnation on the properties of surface layer of cementitious composites

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dc.contributor.authorJansová, Kláracs
dc.contributor.authorFládr, Josefcs
dc.contributor.authorBílý, Petrcs
dc.contributor.authorKalina, Lukášcs
dc.coverage.issue1cs
dc.coverage.volume2568cs
dc.date.issued2023-05-23cs
dc.description.abstractThe degradation processes in surface layers of cementitious composites can be mitigated either by optimizing of the material or by applying surface protection. In this paper, the effect of lithium silicate (LS) sealer is investigated. Water absorbance is studied on standard cement mortar; frost resistance and porosity are examined on two types of concrete (C30/37 and C50/60). The results indicate that LS impregnation improves the water absorbance only slightly and only in the case of short exposure to water; water absorbance was reduced by 15-25% immediately after applying the LS sealer, but the effect was negligible (2-8%) after 24 hours of immersion in water. Frost resistance was not affected by LS impregnation, but a significant improvement of mechanical parameters (flexural tensile strength and weight loss after 50 freeze-thaw cycles) was observed. The resistivity of the concrete surface was increased by LS impregnation by 36-40%, indicating the improvement of quality of the surface layer, while the porosity was practically unaffecteden
dc.formattextcs
dc.format.extent1-8cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationJournal of Physics: Conference Series. 2023, vol. 2568, issue 1, p. 1-8.en
dc.identifier.doi10.1088/1742-6596/2568/1/012004cs
dc.identifier.issn1742-6588cs
dc.identifier.orcid0000-0001-8127-8175cs
dc.identifier.other184569cs
dc.identifier.scopus55255338000cs
dc.identifier.urihttp://hdl.handle.net/11012/244946
dc.language.isoencs
dc.publisherIOP Publishingcs
dc.relation.ispartofJournal of Physics: Conference Seriescs
dc.relation.urihttps://iopscience.iop.org/article/10.1088/1742-6596/2568/1/012004cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1742-6588/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectAbsorbanceen
dc.subjectConcretesen
dc.subjectFrost resistanceen
dc.subjectImpregnationen
dc.subjectLithium compoundsen
dc.subjectSilicatesen
dc.subjectTensile strengthen
dc.titleThe influence of lithium silicate impregnation on the properties of surface layer of cementitious compositesen
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-184569en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:38:28en
sync.item.modts2025.01.17 15:34:14en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav chemie materiálůcs
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