Physico-Chemical Properties of Lithium Silicates Related to Their Utilization for Concrete Densifiers

Simple item page
dc.contributor.authorKalina, Lukášcs
dc.contributor.authorBílek, Vlastimilcs
dc.contributor.authorSedlačík, Martincs
dc.contributor.authorCába, Vladislavcs
dc.contributor.authorSmilek, Jiřícs
dc.contributor.authorŠvec, Jiřícs
dc.contributor.authorBartoníčková, Evacs
dc.contributor.authorRovnaník, Pavelcs
dc.contributor.authorFládr, Josefcs
dc.coverage.issue6cs
dc.coverage.volume16cs
dc.date.accessioned2023-03-21T11:54:45Z
dc.date.available2023-03-21T11:54:45Z
dc.date.issued2023-03-08cs
dc.description.abstractProtection of concrete against aggressive influences from the surrounding environment becomes an important step to increase its durability. Today, alkali silicate solutions are advantageously used as pore-blocking treatments that increase the hardness and impermeability of the concrete’s surface layer. Among these chemical substances, known as concrete densifiers, lithium silicate solutions are growing in popularity. In the present study, the chemical composition of the lithium silicate densifiers is put into context with the properties of the newly created insoluble inorganic gel responsible for the micro-filling effect. Fourier-transform infrared spectroscopy was used as a key method to describe the structure of the formed gel. In this context, the gelation process was studied through the evolution of viscoelastic properties over time using oscillatory measurements. It was found that the gelation process is fundamentally controlled by the molar ratio of SiO2 and Li2O in the densifier. The low SiO2 to Li2O ratio promotes the gelling process, resulting in a rapidly formed gel structure that affects macro characteristics, such as water permeability, directly related to the durability of treated concretes.en
dc.formattextcs
dc.format.extent10cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMaterials . 2023, vol. 16, issue 6, 10 p.en
dc.identifier.doi10.3390/ma16062173cs
dc.identifier.issn1996-1944cs
dc.identifier.orcid0000-0001-8127-8175cs
dc.identifier.orcid0000-0003-3831-3443cs
dc.identifier.orcid0000-0002-4641-2081cs
dc.identifier.orcid0000-0002-8409-992Xcs
dc.identifier.orcid0000-0002-6553-1764cs
dc.identifier.orcid0000-0002-2943-9864cs
dc.identifier.orcid0000-0002-5866-7946cs
dc.identifier.orcid0000-0001-8404-6505cs
dc.identifier.other183154cs
dc.identifier.researcheridAAB-9386-2022cs
dc.identifier.researcheridQ-1628-2018cs
dc.identifier.researcheridB-3901-2010cs
dc.identifier.scopus55255338000cs
dc.identifier.scopus55844628200cs
dc.identifier.scopus56338516900cs
dc.identifier.scopus25621179000cs
dc.identifier.scopus16246538000cs
dc.identifier.urihttp://hdl.handle.net/11012/209220
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMaterialscs
dc.relation.urihttps://www.mdpi.com/1996-1944/16/6/2173cs
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.subjectconcrete densifieren
dc.subjectlithium silicateen
dc.subjectsurface treatmenten
dc.subjectgelation processen
dc.titlePhysico-Chemical Properties of Lithium Silicates Related to Their Utilization for Concrete Densifiersen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-183154en
sync.item.dbtypeVAVen
sync.item.insts2023.08.01 12:58:26en
sync.item.modts2023.08.01 12:20:12en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav fyzikální a spotřební chemiecs
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav chemiecs
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav chemie materiálůcs
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
materials1602173.pdf
Size:
1.88 MB
Format:
Adobe Portable Document Format
Description:
materials1602173.pdf
Download
Collections
Ústav chemie materiálů
Ústav chemie
Ústav fyzikální a spotřební chemie