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dc.contributor.authorMizerová, Cecíliecs
dc.contributor.authorKusák, Ivocs
dc.contributor.authorTopolář, Liborcs
dc.contributor.authorSchmid, Pavelcs
dc.contributor.authorRovnaník, Pavelcs
dc.date.accessioned2021-08-10T10:53:15Z
dc.date.available2021-08-10T10:53:15Z
dc.date.issued2021-08-04cs
dc.identifier.citationMaterials . 2021, vol. 14, issue 16, p. 1-11.en
dc.identifier.issn1996-1944cs
dc.identifier.other172177cs
dc.identifier.urihttp://hdl.handle.net/11012/200924
dc.description.abstractThe development of smart materials is a basic prerequisite for the development of new tech-nologies enabling the continuous non-destructive diagnostic analysis of building structures. Within this framework, the piezoresistive behavior of fly ash geopolymer with added carbon black under compression was studied. Prepared cubic specimens were doped with 0.5, 1, and 2% carbon black and embedded with four copper electrodes. In order to obtain a complex character-ization during compressive loading, the electrical resistivity, longitudinal strain and acoustic emission were recorded. The samples were tested in two modes: repeated loading under low compressive forces and continuous loading until failure. The results revealed piezoresistivity for all tested mixtures, but the best self-sensing properties were achieved with 0.5% of carbon black admixture. The complex analysis also showed that fly ash geopolymer undergoes permanent deformations and the addition of carbon black changes its character from quasi-brittle to rather ductile. The combination of electrical and acoustic methods enables the monitoring of materials far beyond the working range of a strain gauge.en
dc.formattextcs
dc.format.extent1-11cs
dc.format.mimetypeapplication/pdfcs
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMaterialscs
dc.relation.urihttps://www.mdpi.com/1996-1944/14/16/4350cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectfly ashen
dc.subjectgeopolymeren
dc.subjectcarbon blacken
dc.subjectpiezoresistivityen
dc.subjectcompressive loadingen
dc.subjectacoustic emissionen
dc.titleSelf-Sensing Properties of Fly Ash Geopolymer Doped with Carbon Black under Compressionen
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav chemiecs
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav fyzikycs
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav stavební mechanikycs
sync.item.dbidVAV-172177en
sync.item.dbtypeVAVen
sync.item.insts2022.01.03 16:54:49en
sync.item.modts2022.01.03 16:16:06en
dc.coverage.issue16cs
dc.coverage.volume14cs
dc.identifier.doi10.3390/ma14164350cs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1996-1944/cs
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen


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Creative Commons Attribution 4.0 International
Except where otherwise noted, this item's license is described as Creative Commons Attribution 4.0 International