The Effect of Microwave Radiation on the Solidification of C-S-H Gels: Its Influence on the Solidified Cement Mixtures

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dc.contributor.authorPrůša, Davidcs
dc.contributor.authorŠťastník, Stanislavcs
dc.contributor.authorŠuhajda, Karelcs
dc.contributor.authorSvobodová, Kateřinacs
dc.contributor.authorŽajdlík, Tomášcs
dc.contributor.authorHobzová, Kláracs
dc.contributor.authorNovotný, Miloslavcs
dc.coverage.issue11cs
dc.coverage.volume9cs
dc.date.issued2023-04-13cs
dc.description.abstractThe present paper deals with the properties of hardened cement mixtures that have been exposed to microwave radiation. Microwaves fall under electromagnetic waves (EMW), and the main reason for using EMW radiation is to accelerate the drying of concrete as well as to reduce the time required to obtain the handling strength after it is removed from the mould. This paper is divided into two main parts. In the first part, three sets of cement samples were made. One set of samples solidified naturally in air and the second and third sets of samples were exposed to EMW radiation, with different exposure times for each. The solidification was then stopped, and the representation of the major minerals was experimentally determined. The second part of the experiment focuses on the properties of the hardened cement mixtures, both in terms of strength and physical properties. The experiment was carried out on two sets of samples. Each mixture was exposed to EMW radiation, the main differences being the exposure time and the position of the samples relative to the EMW generator. The aim of the experiments is to determine the resulting mechanical properties of the samples in comparison with those that were subjected to normal solidification in air. The data from these experiments suggest that microwave radiation can be used to accelerate the curing of concrete specimens, obtaining the handling strength in a relatively short time, but a reduction in the resulting strength can be expected compared to the reference specimens.en
dc.formattextcs
dc.format.extent1-18cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationGels. 2023, vol. 9, issue 11, p. 1-18.en
dc.identifier.doi10.3390/gels9110889cs
dc.identifier.issn2310-2861cs
dc.identifier.orcid0000-0001-8665-8628cs
dc.identifier.orcid0000-0002-6529-4009cs
dc.identifier.orcid0000-0001-7842-6966cs
dc.identifier.orcid0000-0002-0243-1096cs
dc.identifier.orcid0000-0002-9028-5091cs
dc.identifier.orcid0000-0001-7842-6966cs
dc.identifier.other185223cs
dc.identifier.researcheridAAD-6344-2019cs
dc.identifier.researcheridAAD-6425-2019cs
dc.identifier.scopus54403777800cs
dc.identifier.scopus54403489400cs
dc.identifier.urihttp://hdl.handle.net/11012/244325
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofGelscs
dc.relation.urihttps://www.mdpi.com/2075-5309/13/4/1018cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2310-2861/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectC-S-H; gel; microwave exposure; radiation; material dryingen
dc.subjectmechanical propertiesen
dc.subjectcompressive strengthen
dc.titleThe Effect of Microwave Radiation on the Solidification of C-S-H Gels: Its Influence on the Solidified Cement Mixturesen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-185223en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:44:59en
sync.item.modts2025.01.17 16:52:01en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav pozemního stavitelstvícs
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav technologie stavebních hmot a dílcůcs
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