Finger- joints in lamellas of beech wood (Fagus sylvatica L.)
Journal Title: Annals of WULS, Forestry and Wood Technology; Zeszyty naukowe SGGW - Year 2016, Vol 96, Issue 1
Abstract
Finger- joints in lamellas of beech wood (Fagus sylvatica L.) Due to the lack of quality spruce construction timber, a new alternatives are being searched and considered, beech (Fagus sylvatica L.) timber mostly. It´s used for many glued elements with finger joints. The usage is conditioned by determining properties according to the legislation. Samples were tested for bending strength (MOR) ,modulus of elasticity (MOE) and density. Finger length lj = 22 mm and gluing with XILOBOND T FJ 10 (w = 12%) were according to EN 14 080:2013. Orientation of finger joints was either horizontal or vertical. Properties were compared to reference samples. Bending strength of finger-jointed samples decreased comparing to reference samples. Better results were received with horizontal orientation of finger joints. Modulus of elasticity was higher in compare with reference samples. In horizontal direction MOE was higher in average 10%. At the same time a new technology of gluing joints was tested. Bonding of beech timber by finger joints can be used in truss production. Keywords:
Authors and Affiliations
ALENA ROHANOVÁ, PETER KRIŠŠÁK
Keywords
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