Rheological and mechanical properties of alkali-activated brick powder based pastes: effect of amount of alkali activator

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dc.contributor.authorVyšvařil, Martincs
dc.contributor.authorVejmelková, Evacs
dc.contributor.authorRovnaníková, Pavlacs
dc.coverage.issue1cs
dc.coverage.volume379cs
dc.date.accessioned2019-01-22T07:50:50Z
dc.date.available2019-01-22T07:50:50Z
dc.date.issued2018-07-12cs
dc.description.abstractThe rheological behaviour and mechanical properties of alkali-activated materials prepared by activation of a brick powder by alkaline solution (alkali + water glass) is presented in this paper. The effect of quantity of alkaline activator on the rheological and mechanical properties of brick pastes prepared from two types of brick dust was monitored. The rheological investigation included the characterization of flow properties and viscoelastic properties of the fresh mixtures. Compression and bending strengths were determined at 7, 28, 56 and 90 days. These materials have a low yield stress and a high viscosity strongly influenced by the amount of alkali activator. The fresh brick pastes become liquid more easily with increasing amount of alkali activator. The rising amount of alkali activator leads to a decrease of the material cohesion. The results of rheological and mechanical properties investigation showed considerable differences in behaviour of particular types of brick dust.en
dc.formattextcs
dc.format.extent1-8cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationIOP Conference Series: Materials Science and Engineering. 2018, vol. 379, issue 1, p. 1-8.en
dc.identifier.doi10.1088/1757-899X/379/1/012011cs
dc.identifier.issn1757-8981cs
dc.identifier.other148887cs
dc.identifier.urihttp://hdl.handle.net/11012/137356
dc.language.isoencs
dc.publisherIOP Publishingcs
dc.relation.ispartofIOP Conference Series: Materials Science and Engineeringcs
dc.relation.urihttp://iopscience.iop.org/article/10.1088/1757-899X/379/1/012011cs
dc.rightsCreative Commons Attribution 3.0 Unportedcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1757-8981/cs
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/cs
dc.subjectbrick powderen
dc.subjectalkaline activationen
dc.subjectrheologyen
dc.subjectyield stressen
dc.subjectviscosityen
dc.subjectstrengthen
dc.subjectgeopolymerizationen
dc.titleRheological and mechanical properties of alkali-activated brick powder based pastes: effect of amount of alkali activatoren
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-148887en
sync.item.dbtypeVAVen
sync.item.insts2021.03.04 20:54:51en
sync.item.modts2021.03.04 20:14:06en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav chemiecs
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. AdMaS Divize MSHcs
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