This paper discusses a project focused on performance and indications of possible enhanced mechanical properties for the treated with ammonia compared with untreated Lithuanian-grown oak wood. The aim of the present study was to examine viscous-elastic performance of treated with ammonia and untreated oak specimens intended for flooring products. Specially selected, sampled and grouped accordingly to grown characteristics and physical properties oak (Quercus) specimens with 28 mm thickness, 80 mm width and 625 mm length were characterized by mechanical testing and linking dynamic modulus of elasticity, Brinell’s hardness and main physical wood properties. The density, sound of velocity, ultrasound frequency, dynamic modulus of elasticity (MOE) and Brinell’s hardness (HB) modulus were measured for treated with ammonia and untreated oak specimens. A high correlation was observed between treated with ammonia and untreated wood dynamic modulus of elasticity MOE and density, Brinell’s hardness HB and density and between MOE, HB and density. For better understanding applied character of oak wood properties experiments were also configured accordingly to the relevant European Standards.
Keywords: sound of velocity, density, dynamic modulus of elasticity, Brinell’s hardness
Authors
Gužauskas L.
Department of Wood Technology, Kaunas University of Technology, Kaunas
Pranckevičienė G.
Department of Wood Technology, Kaunas University of Technology, Kaunas
Baltrušaitis A.
Department of Wood Technology, Kaunas University of Technology, Kaunas
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