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In Situ CT-Scanning of Checking and Collapse Behaviour of Eucalyptus nitens During Drying
Luleå University of Technology, Sweden.ORCID iD: 0000-0001-7270-1920
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Hållbar Samhällsbyggnad, Träbyggande och boende.ORCID iD: 0000-0003-3298-1416
NTNU Norwegian University of Science and Technology, Norway.ORCID iD: 0000-0002-5869-2236
Luleå University of Technology, Sweden.
2016 (English)In: Proceedings of the 59th International Convention of Society of Wood Science and Technology, 2016, p. 8-14Conference paper, Published paper (Refereed)
Abstract [en]

Eucalyptus nitens has become a commercially important species in Chile and it isrepresenting one of the fastest growing wood-stock in the country. Today, it is widelyused for pulp and paper production, but the interest in using the solid wood has increasedin recent years. Before the sawn timber can be utilized, its moisture content must bereduced. Often during drying, hydrostatic tension forces within the cell exceed thecompressive strength of the thin cell wall of Eucalyptus nitens and the cell collapses. Thisphenomenon usually leads to severe surface deformation and both surface and internalcracks (honeycombing). Yield and quality of the final product, and thereby sawmills’profitability, are decreased by these cracks and deformations. The aim of this study wasto investigate, by CT-scanning samples throughout the drying process, if it is possible todetect when and how cracking and deformation occurs and develops in specimens ofEucalyptus nitens from Chile. Based on this knowledge, better drying schedules canhopefully be developed to improve the yield and provide a higher end-quality of the sawntimber.

Place, publisher, year, edition, pages
2016. p. 8-14
Keywords [en]
CT-scanning, Eucalyptus nitens, wood drying, image processing, cell collapse
National Category
Agricultural Science, Forestry and Fisheries
Identifiers
URN: urn:nbn:se:ri:diva-28678OAI: oai:DiVA.org:ri-28678DiVA, id: diva2:1079886
Conference
59th International Convention of Society of Wood Science and Technology (SWST 2016), March 6-10, 2016, Curitiba, Brazil
Available from: 2017-03-09 Created: 2017-03-09 Last updated: 2023-06-08Bibliographically approved

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http://www.swst.org/meetings/AM16/pdf/Proceedings.pdf#page=8

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Couceiro, JoseVikberg, TommyHansson, Lars

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