Investigation of Physical and Mechanical Properties of Iranian and Imported Georgian Beech Wood

Document Type : Original Article

Authors

1 Faculty Member, Department of wood Science and Engineering, Technical Faculty of no. 2, Mazandaran Branch, Technical and Vocational University (TVU), Sari, Iran.

2 B.Sc. Department of wood Science and Engineering, Technical Faculty of no. 2, Mazandaran Branch, Technical and Vocational University (TVU), Sari, Iran.

3 MA Student, Department of Wood Engineering and Technology, Tarbiat Modares University, Noor Branch, Noor, Iran.

4 MSc, Department of Wood Engineering and Technology, Faculty of Wood and Paper Engineering, Gorgan University of Agricultural Science and Natural Resources, Gorgan, Iran.

5 PhD Student, Department of Wood Engineering and Technology, Faculty of Wood and Paper Engineering, Gorgan University of Agricultural Science and Natural Resources, Gorgan, Iran.

Abstract

Wood and wooden products are one of the most important materials that have been traditionally used for building constructions. In this study, Mazandaran Sangdeh Beech and imported Georgian Beech wood were used. Physical properties (including dry and critical densities, shrinkage and swelling) and mechanical properties (including bending strength, modulus of elasticity, compression parallel to grain, shear parallel strength to grain, tensile strength parallel and perpendicular to grain, screw withdrawal strength and hardness) were investigated. Physical and mechanical tests were performed according to international standard methods such as ISO 3129 (2012) and ASTM (D143-14). The moisture content of all samples was 12% during mechanical tests. The mean dry densities of Sangdeh and Georgian beech were 0.61(g/cm3) and 0.65(g/cm3), respectively. The result showed that significant differences were observed among the properties of the mentioned species after T-test, except in critical density, radial shrinkage and radial swelling. Moreover, the obtained strengths of Georgian timber were significantly higher than the Iranian beech, which was attributed to the higher density of Georgian timber.

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Main Subjects


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