Analysis of the natural aging of silver fir (Abies alba Mill.) structural timber using dendrochronological, colorimetric, microscopic and FTIR techniques
ID Dremelj, Matjaž (Author), ID Novak, Klemen (Author), ID Merela, Maks (Author), ID Straže, Aleš (Author)

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Timber, as a building material, is subject to structural changes in the used interior, which result from the influence of various local environmental conditions and their changes during the service life. Samples of naturally aged historic silver fir (Abies alba Mill.) wood were taken from the roof of St. Barbara Church (Ravnik above Hotedršica, Slovenia). The slices of historic wood were dendrochronologically dated and analyzed by CIELab color determination, light microscopic analysis and IR spectroscopy. Our results showed that the interior of the 18th-century fir structural timber had lower color lightness (L*) and intensity (b*), particularly in the latewood. The partial increase in lignin and decrease in hemicelluloses relative to cellulose content, associated with an increased degree of crystallinity of cellulose, was confirmed by epifluorescence and polarized light microscopy combined with FTIR spectroscopy.

Keywords:wood, structural timber, aging, color, dendrochronology, microscopy, FTIR spectroscopy
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:BF - Biotechnical Faculty
Publication status:Published
Publication version:Version of Record
Publication date:02.07.2023
Number of pages:13 str.
Numbering:Vol. 14, iss. 7
PID:20.500.12556/RUL-148000 This link opens in a new window
ISSN on article:1999-4907
DOI:10.3390/f14071363 This link opens in a new window
COBISS.SI-ID:158131971 This link opens in a new window
Publication date in RUL:17.07.2023
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Shortened title:Forests
COBISS.SI-ID:3872166 This link opens in a new window


License:CC BY 4.0, Creative Commons Attribution 4.0 International
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Keywords:les, konstrukcijski les, staranje, barva, dendrokronologija, mikroskopija, FTIR spektroskopija

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