Electrical and Self-Sensing Properties of Alkali-Activated Slag Composite with Graphite Filler

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dc.contributor.authorRovnaník, Pavelcs
dc.contributor.authorKusák, Ivocs
dc.contributor.authorBayer, Patrikcs
dc.contributor.authorSchmid, Pavelcs
dc.contributor.authorFiala, Lukášcs
dc.coverage.issue1cs
dc.coverage.volume12cs
dc.date.accessioned2020-08-04T11:01:38Z
dc.date.available2020-08-04T11:01:38Z
dc.date.issued2019-05-16cs
dc.description.abstractThe electrical properties of concrete are gaining their importance for the application in building construction. In this study, graphite powder was added to alkali-activated slag mortar as an electrically conductive filler in order to enhance the mortar’s conductive properties. The amount of graphite ranged from 1% to 30% of the slag mass. The effect of the graphite powder on the resistivity, capacitance, mechanical properties, and microstructure of the composite was investigated. Selected mixtures were then used for the testing of self-sensing properties under compressive loading. The results show that the addition of an amount of graphite equal to up to 10% of the slag mass improved the electrical properties of the alkali-activated slag. Higher amounts of filler did not provide any further improvement in electrical properties at lower AC frequencies but caused a strong deterioration in mechanical properties. The best self-sensing properties were achieved for the mixture with 10wt% of graphite, but only at low compressive stresses of up to 6 MPa.en
dc.formattextcs
dc.format.extent1-16cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMaterials . 2019, vol. 12, issue 1, p. 1-16.en
dc.identifier.doi10.3390/ma12101616cs
dc.identifier.issn1996-1944cs
dc.identifier.other157014cs
dc.identifier.urihttp://hdl.handle.net/11012/178353
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMaterialscs
dc.relation.urihttps://www.mdpi.com/1996-1944/12/10/1616cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1996-1944/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectalkali-activated slagen
dc.subjectgraphiteen
dc.subjectelectrical resistivityen
dc.subjectself-sensingen
dc.subjectcompressive strengthen
dc.subjectmicrostructureen
dc.titleElectrical and Self-Sensing Properties of Alkali-Activated Slag Composite with Graphite Filleren
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-157014en
sync.item.dbtypeVAVen
sync.item.insts2020.08.04 13:01:38en
sync.item.modts2020.08.04 12:45:55en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav chemiecs
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav stavebního zkušebnictvícs
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav fyzikycs
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Centrum AdMaS - VP1 - TSHcs
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