Effect of Inorganic SiO2 Nanofibers in High Strength Cementitious Composites

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dc.contributor.authorBodnárová, Lenkacs
dc.contributor.authorHela, Rudolfcs
dc.contributor.authorSedláček, Danielcs
dc.coverage.issue2019cs
dc.coverage.volume278cs
dc.date.accessioned2020-02-27T03:53:46Z
dc.date.available2020-02-27T03:53:46Z
dc.date.issued2019-04-08cs
dc.description.abstractThe paper deals with the verification of the effect of the addition of inorganic SiO2 nanofibers to cement composites. In the first stage, a stable suspension of SiO2 nanofibers was prepared in an aqueous medium. It is important to distribute nanofibers so that the nanofibers do not appear in the form of clumps and at the same time do not get damaged during the dispersion process. The ultrasonification process was used for dispersion. The dispersed suspension of SiO2 nanofibers and water was dosed together with the superplasticizing admixtures into the dry components of the cement composite and the components were homogenized. The properties of the cement composite with SiO2 nanofibers have been tested – compressive strength, flexural strength, density. Composites with the addition of SiO2 nanofibers at a dose of 0.008 % by weight of cement exhibited an increased compressive strength of up to 33 % and a 19 % greater flexural strength at doses of 0.016 and 0.032 % of cement weight than the reference sample without nanofibers. The presence of SiO2 nanofibers in the composite was monitored by scanning electron microscopy (SEM).en
dc.formattextcs
dc.format.extent1-5cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMATEC Web of Conferences. 2019, vol. 278, issue 2019, p. 1-5.en
dc.identifier.doi10.1051/matecconf/201927801009cs
dc.identifier.issn2261-236Xcs
dc.identifier.other159492cs
dc.identifier.urihttp://hdl.handle.net/11012/184674
dc.language.isoencs
dc.publisherEDP Seriescs
dc.relation.ispartofMATEC Web of Conferencescs
dc.relation.urihttps://www.matec-conferences.org/articles/matecconf/abs/2019/27/matecconf_icbmm2018_01009/matecconf_icbmm2018_01009.htmlcs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2261-236X/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectSiO2 nanofibersen
dc.subjectcement compositeen
dc.subjectstrengthen
dc.subjectSEMen
dc.titleEffect of Inorganic SiO2 Nanofibers in High Strength Cementitious Compositesen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-159492en
sync.item.dbtypeVAVen
sync.item.insts2021.03.04 16:54:17en
sync.item.modts2021.03.04 16:14:35en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav technologie stavebních hmot a dílcůcs
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