Influence of alkali metal formates and calcium formate on workability, hydration and basic properties of reactive powder concrete

dc.contributor.authorKratochvílová, Nikolacs
dc.contributor.authorŠoukal, Františekcs
dc.contributor.authorNovotný, Radoslavcs
dc.contributor.authorSedlačík, Martincs
dc.contributor.authorŠvec, Jiřícs
dc.contributor.authorMásilko, Jiřícs
dc.contributor.authorPtáček, Petrcs
dc.contributor.authorBocian, Lubošcs
dc.contributor.authorHajzler, Jancs
dc.contributor.authorMarko, Michalcs
dc.coverage.issueOctobercs
dc.coverage.volume150cs
dc.date.accessioned2025-06-12T09:55:50Z
dc.date.available2025-06-12T09:55:50Z
dc.date.issued2024-10-29cs
dc.description.abstractThis work aims to study whether it would be possible to use alkali metal formates and calcium formate in order to increase the workability of reactive powder concrete (RPC) and how these additives affect hydration, mechanical properties and mineralogical composition of RPC. These substances were added together with superplasticizer. Therefore, paper deals with possibility of increase in workability which would be higher when compared to the sole addition of only the superplasticizer themself. The effect of alkali metal formates and their replacement with calcium formate on slump flow, mechanical properties and pH of RPC was studied. Furthermore, the influence of potassium formate and its replacement with calcium formate and with calcium oxide on the hydration of RPC was observed with the help of isothermal calorimetry and thermal analysis. The results showed that the addition of studied compounds allows to achieve an increase in RPC slump flow. However, it is necessary to add these substances in an optimal ratio of alkali metal formate/calcium formate because a higher content of calcium formate leads to a decrease in slump flow. For ideal ratios, the compressive strength after 90 days is still above 218 MPa and the flexural strength is still above 23 MPa. In calorimetric measurements, it was observed that the addition of potassium formate leads to a decrease in the total amount of heat developed in the induction period. According to thermal analysis, additions of the studied additives to RPC caused changes in the content of portlandite and calcite.en
dc.formattextcs
dc.format.extent1149-1168cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationJournal of Thermal Analysis and Calorimetry. 2024, vol. 150, issue October, p. 1149-1168.en
dc.identifier.doi10.1007/s10973-024-13703-6cs
dc.identifier.issn1388-6150cs
dc.identifier.orcid0000-0002-8269-0783cs
dc.identifier.orcid0000-0002-0234-3467cs
dc.identifier.orcid0000-0002-1809-5875cs
dc.identifier.orcid0000-0002-4641-2081cs
dc.identifier.orcid0000-0002-2943-9864cs
dc.identifier.orcid0000-0001-9587-5843cs
dc.identifier.orcid0000-0003-0586-7693cs
dc.identifier.orcid0000-0003-4191-4645cs
dc.identifier.orcid0000-0002-4875-4309cs
dc.identifier.orcid0000-0003-0384-1609cs
dc.identifier.other190049cs
dc.identifier.researcheridQ-2440-2015cs
dc.identifier.researcheridAAY-4689-2020cs
dc.identifier.researcheridQ-1628-2018cs
dc.identifier.scopus57188564285cs
dc.identifier.scopus56338516900cs
dc.identifier.scopus25621858200cs
dc.identifier.scopus57202956588cs
dc.identifier.urihttps://hdl.handle.net/11012/252164
dc.language.isoencs
dc.publisherSpringer Naturecs
dc.relation.ispartofJournal of Thermal Analysis and Calorimetrycs
dc.relation.urihttps://link.springer.com/article/10.1007/s10973-024-13703-6cs
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.subjectRPCen
dc.subjectFlowen
dc.subjectCalorimetryen
dc.subjectMechanical propertiesen
dc.subjectThermal analysisen
dc.subjectpHen
dc.titleInfluence of alkali metal formates and calcium formate on workability, hydration and basic properties of reactive powder concreteen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.grantNumberinfo:eu-repo/grantAgreement/GA0/GA/GA23-05082Scs
sync.item.dbidVAV-190049en
sync.item.dbtypeVAVen
sync.item.insts2025.06.12 11:55:50en
sync.item.modts2025.06.12 11:33:09en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Fakulta chemickács
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav chemie materiálůcs
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