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European Journal of Wood and Wood Products

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02.08.2022 | Original Article

The effect of alternating freezing and high temperatures on the tensile-shear strength of glued Norway spruce (Picea abies (L.) H. Karst.) and European larch (Larix decidua Mill.) wood

verfasst von: Miroslav Gašparík, Fatemeh Rezaei, Elham Karami, Sumanta Das, Tomáš Kytka, Lukáš Vlk, Roberto Corleto, Gianluca Ditommaso

Erschienen in: European Journal of Wood and Wood Products | Ausgabe 6/2022

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Abstract

Wood bond strength and its durability under unstable climatic conditions is a critical factor for engineered wood products. This article aims to identify the effect of alternating freezing and high temperatures on the tensile-shear strength of adhesive-bonded wood. Emulsion polymer isocyanate and one-component polyurethane adhesives were used to bond European larch (Larix decidua Mill) and Norway spruce (Picea abies (L.) H. Karst.). The thermal loading of glued samples was carried out at temperatures of − 15 °C/70 °C and − 25 °C/70 °C. The tensile-shear strength was determined on the glued samples with a universal testing machine. The results showed that the tensile-shear strength of the glued wood exposed to − 15 °C/70 °C and − 25 °C/70 °C remained unchanged compared to that of reference samples. A negligible correlation was found between the thermal loading and the shear strength of glued samples.

Vorheriger Artikel Effects of cyclic drying and moistening on the mechanical and physical properties of wood

Nächster Artikel Macroscopic X-ray computed tomography aided numerical modelling of moisture flow in sawn timber

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Titel: The effect of alternating freezing and high temperatures on the tensile-shear strength of glued Norway spruce (Picea abies (L.) H. Karst.) and European larch (Larix decidua Mill.) wood
verfasst von: Miroslav Gašparík
Fatemeh Rezaei
Elham Karami
Sumanta Das
Tomáš Kytka
Lukáš Vlk
Roberto Corleto
Gianluca Ditommaso
Publikationsdatum: 02.08.2022
Verlag: Springer Berlin Heidelberg
Erschienen in: European Journal of Wood and Wood Products / Ausgabe 6/2022
Print ISSN: 0018-3768
Elektronische ISSN: 1436-736X
DOI: https://doi.org/10.1007/s00107-022-01853-z

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