Surface Characteristics of One-Sided Charred Beech Wood

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dc.contributor.authorMachová, Ditacs
dc.contributor.authorOberle, Annacs
dc.contributor.authorZárybnická, Luciecs
dc.contributor.authorDohnal, Jakubcs
dc.contributor.authorŠeda, Vítcs
dc.contributor.authorDömeny, Jakubcs
dc.contributor.authorVacenovská, Veronikacs
dc.contributor.authorKloiber, Michalcs
dc.contributor.authorPěnčík, Jancs
dc.contributor.authorTippner, Jancs
dc.contributor.authorČermák, Petrcs
dc.coverage.issue10cs
dc.coverage.volume13cs
dc.date.issued2021-05-12cs
dc.description.abstractThe aim of this paper was to analyze selected properties of beech wood (Fagus sylvatica L.) treated by one-sided surface charring. Specimens were one-side charred with a hot plate using several time-temperature combinations (from 200 to 400 degrees C). Characteristics such as colour, discoloration, surface roughness, fire resistance, total carbohydrate content at several wood layers and decay resistance were evaluated. Surface charring was applied to the radial and tangential surfaces. Colour measurements showed that the surface of the wood turned grey due to charring. In addition to colour measurements, other experiments showed significant differences between radial and tangential specimens due to their different structures. The higher the temperature used in treating them, the lower the roughness values for radial specimens, while the trend for tangential specimens was the opposite. A smoother surface is more fire resistant, so radial specimens are generally better in this regard. Tangential specimens are more susceptible during preparation to forming cracks that impair flame resistance because a continuous protective densified layer is not formed. The determination of total carbohydrates revealed significant changes at various wood depths after surface charring. These changes were more predictable in radial specimens due to the annual ring orientation, because each layer consisted of a similar earlywood/latewood ratio. Finally, when decay resistance was assessed, weight loss was found to be lower in all specimens than in the references. The results suggest that charring at a particular combination of temperature and time improved the investigated properties of the surface-modified beech.en
dc.formattextcs
dc.format.extent1-15cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationPolymers. 2021, vol. 13, issue 10, p. 1-15.en
dc.identifier.doi10.3390/polym13101551cs
dc.identifier.issn2073-4360cs
dc.identifier.orcid0000-0003-0448-2687cs
dc.identifier.orcid0000-0002-5986-6568cs
dc.identifier.orcid0000-0002-2295-0088cs
dc.identifier.other171502cs
dc.identifier.researcheridAAD-6995-2019cs
dc.identifier.scopus51061468700cs
dc.identifier.urihttp://hdl.handle.net/11012/200981
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofPolymerscs
dc.relation.urihttps://www.mdpi.com/2073-4360/13/10/1551cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2073-4360/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectsurface charringen
dc.subjectwood modificationen
dc.subjectcolour changesen
dc.subjectsurface roughnessen
dc.subjectfire resistanceen
dc.subjectphenol sulphuric acid assayen
dc.subjectdecay resistanceen
dc.subjectbeechen
dc.titleSurface Characteristics of One-Sided Charred Beech Wooden
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-171502en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:44:54en
sync.item.modts2025.01.17 18:47:52en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav pozemního stavitelstvícs
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