Physical and Mechanical Properties of Eucalyptus urophylla clone K58

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Wiwat Hanvongjirawat

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Eucalyptus spp. become important commercial wood as raw materials for various industrial applications in Thailand. But for lumber processing that is limited of basic information to process. Eucalyptus urophylla clone K58 is one of the eucalyptus varieties that is grown widely in Thailand. The objective of this study is to investigate the selected physical and mechanical properties of E. urophylla clone K58. Physical properties i.e. oven-dry specific gravity, fiber saturation point, shrinkage in tangential, radial and longitudinal direction and desorption isotherm, and mechanical properties i.e. modulus of rupture (MOR), modulus of elasticity (MOE), compression parallel to grain, compression perpendicular to grain, cleavage, hardness and nail holding were determined. The results of E. urophylla clone K58 were compared with commercial woods for furniture production such as rubber wood (Heavia brasiliensis) and Teak (Tectona grandis), and with commercial woods for building structure such as Pradauk (Pterocarpus macrocarpus), Daeng (Xylia xylocarpa) and Teng (Shorea obtusa).

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