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Physical Properties of Larch(Larix kaemferi Carr.) Treated by High Temperature Steaming  

Kim, Jung-Hwan (Department Group of Forestry and Wood Science & Technology, Kyungpook National University)
Lee, Weon-Hee (Department Group of Forestry and Wood Science & Technology, Kyungpook National University)
Publication Information
Journal of the Korean Wood Science and Technology / v.30, no.4, 2002 , pp. 1-7 More about this Journal
Abstract
This study deals with physical properties of Larch(Larix kaemferi Carr.) treated by steaming at temperatures above 100℃. Treatment conditions of this experiment were operated at regular intervals of 10℃ at temperature up to 130℃ for 10, 30 and 60 minutes by using the auto-clave. The Bending strength and compressive strength along the grain were slightly decreased with increasing the treating temperatures. There was no significant relations between wood strength and steaming temperatures. At the range from 120℃ to 130℃ of steaming temperature, it was considered that the change of composition and structure in cell wall was changed due to release of stresses. Water absorption characteristics were not affected by steaming temperature. In this experiment limits, it was concluded that physical properties of wood by steaming treatment were affected more largely by wood density than by treating temperature.
Keywords
High temperature steaming; Bending strength; Compressive strength; Water absorption;
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