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Bending creep performance of modified timber
- Epmeier, Hannah (author)
-
- Johansson, Marie (author)
- Växjö universitet,Institutionen för teknik och design,Byggteknik,Träbygg
- Kliger, Robert (author)
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- Westin, Mats (author)
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- (creator_code:org_t)
- 2007-07-19
- 2007
- Swedish.
- In: European Journal of Wood and Wood Products. - : Springer Berlin / Heidelberg. - 0018-3768 .- 1436-736X. ; 65:5
- Journal article (peer-reviewed)
Abstract
Subject headings
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- 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.
Subject headings
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Skogsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Forest Science (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Husbyggnad (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Building Technologies (hsv//eng)
Keyword
- Forest engineering
- Skogsteknik
- Building engineering
- Byggnadsteknik
- Civil engineering
- Byggteknik
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Epmeier, Hannah
- Johansson, Marie
- Kliger, Robert
- Westin, Mats
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- AGRICULTURAL SCIENCES
- AGRICULTURAL SCI ...
- and Agriculture Fore ...
- and Forest Science
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- Linnaeus University
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