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http://dx.doi.org/10.5658/WOOD.2018.46.5.497

Evaluation of Deterioration of Larix kaempferi Wood Heat-treated by Superheated Steam through Field Decay Test for 12 Months  

Park, Yonggun (Department of Forest Sciences, College of Agriculture & Life Sciences, Seoul National University)
Han, Yeonjung (Department of Forest Products, National Institute of Forest Science)
Park, Jun-Ho (SDI R&D Center, Samsung SDI Co., LTD.)
Chung, Hyunwoo (Department of Forest Sciences, College of Agriculture & Life Sciences, Seoul National University)
Kim, Hyunbin (Department of Forest Sciences, College of Agriculture & Life Sciences, Seoul National University)
Yang, Sang-Yun (Department of Forest Sciences, College of Agriculture & Life Sciences, Seoul National University)
Chang, Yoon-Seong (Department of Forest Products, National Institute of Forest Science)
Yeo, Hwanmyeong (Department of Forest Sciences, College of Agriculture & Life Sciences, Seoul National University)
Publication Information
Journal of the Korean Wood Science and Technology / v.46, no.5, 2018 , pp. 497-510 More about this Journal
Abstract
In this study, the decay resistance of larch wood, which was heat treated by superheated steam, was evaluated by the field decay test. During the field decay test of 12 months, non-treated wood has been severely damaged by termite, however, no visible damage has occurred in the preservative-treated wood and superheated steam heat-treated wood. Results of field decay test showed approximately 5% mass loss of the non-treated wood and the preservative-treated wood, and approximately 1% mass loss of the superheated steam heat-treated wood. After the field decay test for 12 months, the residual amount of preservatives remaining in the preservative-treated wood was lower than that before the field decay test. It was considered that the preservative was partially eluted during the field decay test, and the mass loss of the preservative-treated wood was thought to be similar to that of the non-treated wood. Through this study and additional long-term monitoring test, superheated steam heat treatment can be considered to be an environmental-friendly method to enhance the decay resistance of wood against rot fungi and/or insect without chemical treatment such as preservative injection.
Keywords
field decay test; decay resistance; wood rot fungi; termite; superheated steam heat-treatment;
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