Effect of alkali cation type on the plasticizing effect of ligno-sulfonate in alkali-activated systems

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dc.contributor.authorIliushchenko, Valeriiacs
dc.contributor.authorBílek, Vlastimilcs
dc.contributor.authorKalina, Lukášcs
dc.contributor.authorHrubý, Petrcs
dc.contributor.authorOpravil, Tomášcs
dc.contributor.authorBojanovský, Jiřícs
dc.coverage.issue1cs
dc.coverage.volume1205cs
dc.date.accessioned2022-01-18T15:56:10Z
dc.date.available2022-01-18T15:56:10Z
dc.date.issued2021-09-29cs
dc.description.abstractThe rheological properties of alkali-activated systems are significantly affected by the nature of the alkaline activator. Hydroxide-activated systems' workability is typically lower than that of alkali-activated systems but can be improved by lignosulfonate plasticizer. However, the lignosulfonate plasticizer's effectivity depends on the dosage of lignosulfonate, the nature of hydroxide and pH of their solutions. Therefore, in this study, the effectiveness of lignosulfonate plasticizer with respect to alkali ion type (Na+, K+, Li+) in alkali hydroxide-activated systems based on ground granulated blast furnace slag was evaluated. The concentration of the alkaline activator (NaOH, KOH and LiOH) was the same in all cases of 4M. The superplasticizer dosage was 0%, 0.5% and 1.0% of dry matter of lignosulfonate plasticizer to the slag weight. Rheological properties were determined using a rotational rheometer equipped with vane in-cup geometry working in oscillation amplitude sweep mode, from which critical strain and corresponding viscoelastic variables were obtained.en
dc.formattextcs
dc.format.extent1-7cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationIOP Conference Series: Materials Science and Engineering. 2021, vol. 1205, issue 1, p. 1-7.en
dc.identifier.doi10.1088/1757-899X/1205/1/012016cs
dc.identifier.issn1757-8981cs
dc.identifier.other175418cs
dc.identifier.urihttp://hdl.handle.net/11012/203345
dc.language.isoencs
dc.publisherIOP Publishingcs
dc.relation.ispartofIOP Conference Series: Materials Science and Engineeringcs
dc.relation.urihttps://iopscience.iop.org/article/10.1088/1757-899X/1205/1/012016cs
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.subjectAlkali-activated materialsen
dc.subjectplasticizing effecten
dc.subjectrheologyen
dc.titleEffect of alkali cation type on the plasticizing effect of ligno-sulfonate in alkali-activated systemsen
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-175418en
sync.item.dbtypeVAVen
sync.item.insts2022.01.18 16:56:10en
sync.item.modts2022.01.18 16:15:56en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. ÚPI-odbor procesního inženýrstvícs
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav chemie materiálůcs
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