Accelerated carbonation of oil-well cement blended with pozzolans and latent hydraulic materials

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dc.contributor.authorKuzielova, Evacs
dc.contributor.authorSlaný, Michalcs
dc.contributor.authorŽemlička, Matúšcs
dc.contributor.authorMásilko, Jiřícs
dc.coverage.issue19cs
dc.coverage.volume148cs
dc.date.accessioned2024-02-19T11:46:14Z
dc.date.available2024-02-19T11:46:14Z
dc.date.issued2023-08-12cs
dc.description.abstractAccelerated carbonation of cement mixtures consisting of class G cement, silica fume, metakaolin, or blast furnace slag was studied by thermogravimetric, X-ray diffraction and Fourier transform infrared analyses for 1 year. Surface parts were fully carbonated during the first 7 days. Polymerization of amorphous hydrates due to their decalcification was observed together with the rising amount of calcium carbonates and reformation of gypsum from ettringite and monosulfate. Decalcification of clinker phases took place fast after the depletion of portlandite. Although portlandite was still present in unblended pastes, because of slower carbonation rate in the surface parts and higher C/S ratio of amorphous hydrates, the carbonation front moved inward during 3 months. Pozzolanic reactions in the samples with 30 mass% of additives depleted portlandite, however, higher amounts of C-(A)-S-H phases with lower C/S ratio, denser microstructure and faster carbonation of surface parts ensured their resistance against carbonation throughout the monitored period.en
dc.formattextcs
dc.format.extent9963-9977cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationJournal of Thermal Analysis and Calorimetry. 2023, vol. 148, issue 19, p. 9963-9977.en
dc.identifier.doi10.1007/s10973-023-12378-9cs
dc.identifier.issn1388-6150cs
dc.identifier.orcid0000-0001-9587-5843cs
dc.identifier.other187452cs
dc.identifier.scopus25621858200cs
dc.identifier.urihttps://hdl.handle.net/11012/245040
dc.language.isoencs
dc.publisherSPRINGERcs
dc.relation.ispartofJournal of Thermal Analysis and Calorimetrycs
dc.relation.urihttps://link.springer.com/content/pdf/10.1007/s10973-023-12378-9.pdfcs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1388-6150/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectCarbonationen
dc.subjectSilica fumeen
dc.subjectMetakaolinen
dc.subjectGround-granulated blast-furnace slagen
dc.titleAccelerated carbonation of oil-well cement blended with pozzolans and latent hydraulic materialsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-187452en
sync.item.dbtypeVAVen
sync.item.insts2024.02.19 12:46:13en
sync.item.modts2024.02.19 12:13:42en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav chemie materiálůcs
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