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Wood construction under cold climate: Part one : Impact of cold temperatures on the shear strength of different adhesives glued wood joints of Norway spruce and Scots pine
Luleå University of Technology.
Luleå University of Technology.
SP Technical Research Institute of Sweden.
Technical University of Denmark, Denmark.ORCID iD: 0000-0001-5591-1045
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2014 (English)In: WCTE 2014 World Conference on Timber Engineering, Quebec City, Canada, August 10-14, 2014 / [ed] Alexander Salenikovich, 2014Conference paper, Published paper (Refereed)
Abstract [en]

As wood constructions increasingly use engineered wood products worldwide, concerns arise about the integrity of the wood and adhesives system. The glueline stability is a crucial issue for engineered wood application, especially under cold climate. In this study, Norway spruce (Picea abies) and Scots pine (Pinus sylvestris) joints (150mm x 20mm x 10mm) were bonded with seven commercially available resins (PUR, PVAc, EPI, MF, MUF1, PRF and MUF2) and tested at six temperatures (20, -20, -30, -40, -50 and -60 °C), respectively. Generally, for both species, temperature changes significantly affected shear strength of wood joints. As temperature decreased, the shear strength decreased. PUR resin resulted in the strongest shear strength at all temperatures tested. MF resin responded to temperature changes in a similar ways as the PUR resin. The shear strength of wood joints with EPI resins was sensitive to temperature change. MUF, PRF and PVAc resins demonstrated different characters with Norway spruce and Scot pine. At room temperature, all types of adhesive showed relative stability, in terms of shear strength variation. While at low temperature, the shear strength varied considerably. More specimens need to be tested in further work to more completely present the issue. The EN 301 and EN 302 may need to be specified based on wood species.

Place, publisher, year, edition, pages
2014.
Keyword [en]
engineered wood products, gluline stability, cold climate, shear strength
National Category
Construction Management
Research subject
Technology (byts ev till Engineering), Civil engineering
Identifiers
URN: urn:nbn:se:lnu:diva-42187OAI: oai:DiVA.org:lnu-42187DiVA: diva2:802216
Conference
WCTE 2014 World Conference on Timber Engineering, August 11-14, 2014, Quebec City, Canada.
Available from: 2015-04-12 Created: 2015-04-12 Last updated: 2016-12-07Bibliographically approved

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Total: 126 hits
CiteExportLink to record
Permanent link

Direct link
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
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf