Effects of layer arrangements on bending strength properties of laminated lumber made of poplar (Populus nigra L.)

Scientific Research and Essays

Ali Bayatkashkoli¹ 

关键词:  ;    Laminated wood products;    bending properties;    layer arrangement;    poplar wood.;   

DOI  :  10.5897/SRE11.918

学科分类：社会科学、人文和艺术（综合）

来源: Academic Journals

【 摘 要 】

In this study, the effects of layer arrangements on bending properties of laminated wood products have been investigated. Poplar (Populus nigra L.) and polyvinyl acetate (PVA) were used as wood and adhesive, respectively. Bending static properties (MOE and MOR) of laminated products comprising various combinations of layer arrangements resulting in 5 combinations were measured. The results of this study showed that sawn lumber (control sample) had better bending properties (MOE and MOR) than lumber made from laminated layers. On the whole, using layers as constitution for layered systems decreased MOR more than MOE. Using thick layers reduced the MOR and MOE of the products. Finally, the proper layer arrangements should be selected with respect to their final application in the production of laminated products.

【 授权许可】

CC BY