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Durability of the Siberian Larch Heartwood Timber of Different Origin: the Results of 11-Year Ground Contact Test in Finland
Natural Resources Institute Finland, Finland.
Metsä Wood, Finland.
Swedish University of Agricultural Sciences, Uppsala, Sweden.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.
2019 (English)In: Sibirskij Lesnoj Zurnal (Siberian Journal of Forest Science), ISSN 2311-1410, no 3, p. 14-19Article in journal (Refereed) Published
Abstract [en]

The study describes a ground contact test on natural durability of the Siberian larch heartwood timber. The test has been conducted in Finland according to the European norm EN252 since the year 2006. The material is timber imported from natural larch stands in Ust-Ilimsk, Russia, and cultivated larch stand in Punkaharju, Finland. The Finnish stand is growing outside the natural range of distribution of Siberian larch. Untreated Scots pine heartwood and impregnated Scots pine sapwood were used as reference materials. The results after 11 years showed that there was remarkable variation in the durability between the larch heartwood samples. Nevertheless, the most durable timber lots on average were the Siberian larch heartwoods harvested from the Russian native stands and the Finnish cultivated stand. It is predicted that it will take another 10 years or more until the failure of the most durable larch stakes.

Place, publisher, year, edition, pages
Novosibirsk: Russian Academy of Sciences, 2019. no 3, p. 14-19
Keywords [en]
Larix sibirica, heartwood, bioresistance, European norm EN252, ground contact, testing, Ust-Ilimsk, Punkaharju
National Category
Other Mechanical Engineering
Research subject
Wood Science and Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-77129DOI: 10.15372/SJFS20190302OAI: oai:DiVA.org:ltu-77129DiVA, id: diva2:1376841
Note

Godkänd;2020;Nivå 0;2020-01-09 (johcin)

Available from: 2019-12-10 Created: 2019-12-10 Last updated: 2020-01-09Bibliographically approved

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Torniainen, Petteri

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CiteExportLink to record
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