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dc.contributor.authorMalaiškienė, Jurgita,
dc.contributor.authorAntonovič, Valentin,
dc.contributor.authorBoris, Renata,
dc.contributor.authorKudžma, Andrius,
dc.contributor.authorStonys, Rimvydas,
dc.date.accessioned2023-12-22T07:05:47Z
dc.date.available2023-12-22T07:05:47Z
dc.date.issued2023.
dc.identifier.urihttps://etalpykla.vilniustech.lt/xmlui/handle/123456789/153525
dc.description.abstractThis study examines the impact of the impregnation of fireclay-based conventional (CC) and medium-cement castables (MCCs) with liquid sodium silicate glass under vacuum conditions. The goal is to assess how this treatment affects the physical and mechanical properties and durability (alkali and thermal shock resistance) of these castables used in biomass combustion boilers, where they are exposed to temperatures up to 1100 ◦C. The research work employs standard test methods to evaluate the physical and mechanical properties. Additionally, advanced techniques such as scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), and specific tests for alkali resistance and thermal shock resistance are used. The research findings suggest that impregnation with sodium silicate glass under vacuum significantly enhances the alkali resistance of both CC and MCCs. This improvement is primarily due to the reduction in porosity and the increase in density. SEM images reveal that the impregnated samples are coated with a glassy layer and the pores are partially filled with sodium silicate. Tests for alkali resistance demonstrate the formation of a protective glassy layer (with a thickness of 0.9–1.5 mm) on the castables surfaces, thereby reducing the further penetration of alkali into deeper layers of the samples. However, it is important to mention that the impregnated refractory castables have reduced resistance to thermal shock cycles.eng
dc.formatPDF
dc.format.extentp. 2320-2332.
dc.format.mediumtekstas / txt
dc.language.isoeng
dc.relation.isreferencedbyScience Citation Index Expanded (Web of Science)
dc.relation.isreferencedbyScopus
dc.relation.isreferencedbyDOAJ
dc.source.urihttps://www.mdpi.com/2571-6131/6/4/142
dc.titleAnalysis of the structure and durability of refractory castables impregnated with sodium silicate glass /
dc.typeStraipsnis Web of Science DB / Article in Web of Science DB
dcterms.accessRightsThis article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/ 4.0/).
dcterms.licenseCreative Commons – Attribution – 4.0 International
dcterms.references39
dc.type.pubtypeS1 - Straipsnis Web of Science DB / Web of Science DB article
dc.contributor.institutionVilniaus Gedimino technikos universitetas
dc.contributor.facultyStatybos fakultetas / Faculty of Civil Engineering
dc.contributor.departmentStatybinių medžiagų institutas / Institute of Building Materials
dc.subject.researchfieldT 008 - Medžiagų inžinerija / Material engineering
dc.subject.studydirectionF03 - Medžiagų technologijos / Materials technology
dc.subject.vgtuprioritizedfieldsSD0202 - Aplinką tausojančios statybinės medžiagos ir technologijos / Low emissions building materials and technologies
dc.subject.ltspecializationsL104 - Nauji gamybos procesai, medžiagos ir technologijos / New production processes, materials and technologies
dc.subject.enrefractory castable
dc.subject.enimpregnation
dc.subject.enliquid sodium silicate glass
dc.subject.enalkali resistance
dc.subject.enphysical and mechanical properties
dc.subject.enthermal shock resistance
dcterms.sourcetitleCeramics: Special issue: Innovative manufacturing processes of silicate materials.
dc.description.issueiss. 4
dc.description.volumevol. 6
dc.publisher.nameMDPI
dc.publisher.cityBasel
dc.identifier.doi155724902
dc.identifier.doi10.3390/ceramics6040142
dc.identifier.elaba183962283


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