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Bending creep performance of modified timber
Växjö University, Faculty of Mathematics/Science/Technology, School of Technology and Design. Byggteknik. (Träbygg)ORCID iD: 0000-0001-5319-4855
2007 (Swedish)In: European Journal of Wood and Wood Products, ISSN 0018-3768, E-ISSN 1436-736X, Vol. 65, no 5Article in journal (Refereed) Published
Abstract [sv]

The present study is a supplement to Epmeier and Kliger (2005), which investigated the effect of three different modification methods (acetylation, modification with methylated melamine resin and heat treatment in vegetable oil) on four material properties (density, modulus of elasticity (MOE), creep deflection and relative creep) and their inter-relations. In this study, another modification method (furfurylation) and four additional material parameters (“relative stiffness”, i.e. MOE/density, moisture content, change in moisture content and anti-creep efficiency) and their correlations are included. In addition, the creep curves were analysed to assess the development of bending creep performance. The properties were assessed by experimental work on 132 specimens of Scots pine sapwood with dimensions of 45×70×1100 mm3. It was found that modification leads to significant changes in material properties. Furfurylation increases density and reduces creep deflection, relative creep and moisture content. Modified timber tends to deflect and creep significantly less than untreated timber. However, the extent of reduction in relative creep appears not to be related to the extent of reduction in creep deflection. Initial deflection and/or modulus of elasticity are suitable for predicting the creep deflection of untreated and modified timber.

Place, publisher, year, edition, pages
Springer Berlin / Heidelberg , 2007. Vol. 65, no 5
National Category
Forest Science Building Technologies
Research subject
Technology (byts ev till Engineering), Civil engineering
Identifiers
URN: urn:nbn:se:vxu:diva-3143DOI: 10.1007/s00107-007-0189-1OAI: oai:DiVA.org:vxu-3143DiVA, id: diva2:203099
Available from: 2008-01-07 Created: 2008-01-07 Last updated: 2017-12-13Bibliographically approved

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Johansson, Marie

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CiteExportLink to record
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  • apa
  • ieee
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  • de-DE
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  • en-US
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  • nn-NO
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Output format
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  • asciidoc
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