Hybrid Geopolymer Composites Based on Fly Ash Reinforced with Glass and Flax Fibers

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dc.contributor.authorŠimonová, Hanacs
dc.contributor.authorBazan, Patrycjacs
dc.contributor.authorKucharczyková, Barbaracs
dc.contributor.authorKocáb, Daliborcs
dc.contributor.authorLach, Michalcs
dc.contributor.authorDariusz, Mierzwińskics
dc.contributor.authorSetlak, Kingacs
dc.contributor.authorNykiel, Marekcs
dc.contributor.authorNosal, Przemysławcs
dc.contributor.authorKorniejenko, Kingacs
dc.coverage.issue21cs
dc.coverage.volume14cs
dc.date.accessioned2025-04-04T11:56:39Z
dc.date.available2025-04-04T11:56:39Z
dc.date.issued2024-10-26cs
dc.description.abstractThis article’s aim is to analyze physical, mechanical, and fracture properties as well as the thermal investigation of geopolymer composites reinforced with flax, glass fiber, and also the hybrid combination of fibers. Two types of matrices were considered as composites matrices. The first composition was based on fly ash and river sand. The second matrix composition contained fly ash and glass spheres. The content of reinforcement was 1% by mass. Compressive strength and three-point bending fracture tests were performed. The values of fracture toughness and fracture energy were determined. The resonance method was used to verify the dynamic characteristics, such as the dynamic modulus of elasticity and the dynamic Poisson ratio. The results show that single-type fibers in composites based on fly ash and glass spheres did not affect compressive strength. However, introducing hybrid reinforcement increased compressive strength by about 10% compared to the reference specimens. Flax fibers and hybrid reinforcement ensured higher fracture toughness and energy. The results also revealed great potential for glass sphere application to geopolymer materials in terms of fracture mechanics and thermal properties. Despite the lower strength properties in relation to geopolymers based on sand aggregate, applying reinforced fibers into the composite with glass spheres enhanced the compressive strength compared to other materials. Materials modified with glass spheres have a thermal conductivity twice as low as that of materials containing river sand.en
dc.formattextcs
dc.format.extent1-18cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationApplied Sciences - Basel. 2024, vol. 14, issue 21, p. 1-18.en
dc.identifier.doi10.3390/app14219787cs
dc.identifier.issn2076-3417cs
dc.identifier.orcid0000-0003-1537-6388cs
dc.identifier.orcid0000-0002-7123-5099cs
dc.identifier.orcid0000-0002-8273-4571cs
dc.identifier.other193572cs
dc.identifier.researcheridJ-9776-2016cs
dc.identifier.researcheridAAM-3121-2020cs
dc.identifier.researcheridAAW-8720-2020cs
dc.identifier.scopus57219392264cs
dc.identifier.scopus36171769500cs
dc.identifier.scopus56721310500cs
dc.identifier.urihttps://hdl.handle.net/11012/250767
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofApplied Sciences - Baselcs
dc.relation.urihttps://www.mdpi.com/2076-3417/14/21/9787cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2076-3417/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectgeopolymer compositesen
dc.subjectcracking mechanicsen
dc.subjectnatural fibersen
dc.subjectglass fibersen
dc.subjectglass spheresen
dc.titleHybrid Geopolymer Composites Based on Fly Ash Reinforced with Glass and Flax Fibersen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-193572en
sync.item.dbtypeVAVen
sync.item.insts2025.04.04 13:56:39en
sync.item.modts2025.04.04 10:32:11en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav stavební mechanikycs
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav stavebního zkušebnictvícs
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