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Shear Strength of Scots Pine Wood and Glued Joints in a Cold Climate
Luleå Universoty of Technology.
Luleå Universoty of Technology.
SP Technical Research Institute of Sweden.
Linnaeus University, Faculty of Technology, Department of Building Technology.ORCID iD: 0000-0001-5591-1045
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2016 (English)In: BioResources, ISSN 1930-2126, E-ISSN 1930-2126, Vol. 11, no 1, 944-956 p.Article in journal (Refereed) Published
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Text
Abstract [en]

The impact of cold temperatures on the shear strength of Scots pine (Pinus sylvestris) joints glued with seven commercially available adhesives was studied in this work. The cold temperatures investigated were: 20, -20, -30, -40, and -50 degrees C. Generally, within the temperature test range, the shear strength of Scots pine solid wood and wood joints were more resistant to the effect of temperature than those of Norway spruce. As the temperature decreased, only some of the joints' shear strength significantly decreased. In most cases, PUR adhesive yielded the strongest shear strength and MUF adhesive yielded the weakest shear strength. MF adhesive responded to temperature changes in a similar manner to that of PUR and PVAc adhesives. The shear strengths of wood joints with PRF and EPI adhesives were more sensitive to temperature change. For dynamic tests of shear strength, the values for 12-h and 6-day tests under temperature cycles (-20 and 0 degrees C) were compared. The values for 6-day tests were lower than those for 12-h tests. Therefore, the duration of the samples subjected to the same temperature had a significant impact on shear strength. Our results indicate that PUR adhesive is the most stable; whereas the stability of MUF and PRF adhesives decreased significantly.

Place, publisher, year, edition, pages
2016. Vol. 11, no 1, 944-956 p.
Keyword [en]
Cold temperatures, Shear strength, Scots pine, Adhesives, Dynamic tests
National Category
Wood Science Civil Engineering
Research subject
Technology (byts ev till Engineering), Civil engineering
Identifiers
URN: urn:nbn:se:lnu:diva-49380ISI: 000367732700076OAI: oai:DiVA.org:lnu-49380DiVA: diva2:898544
Available from: 2016-01-28 Created: 2016-01-28 Last updated: 2016-07-08Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
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Output format
  • html
  • text
  • asciidoc
  • rtf