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Analýza vybraných vlastností lepených dřevěných kolíkových spojů
Linhart, Matěj
The thesis is aimed at the tensile strength of wooden dowel joint using different wood species of dowels, different types of adhesives and different material of carriers in which the dowels are glued and subsequently pulled out of them. The tensile strength of dowel joints is influenced by a several of factors which including the wood species of dowels, the type of adhesive and the material being joined. In this thesis a total of three wood species of dowels were compared (Robinia pseudoacacia L., Fagus sylvatica L., Carpinus betulus L.), two types of adhesives (PVAc adhesive Multibond SK-8 and PUR adhesive AG-PUR Standard) and two types of carrier material – insulation material Purenit and birch plywood. Both carrier materials were part of a glued spruce beam like a middle layer. A total of 12 variants of test samples were compared, which differed from each other in the wood species of dowel, adhesive type, and material of the carrier. The best results were achieved with test sample variants that contained birch plywood as a carrier and were glued with PUR adhesive AG-PUR Standard.

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