Journal of the Korean Wood Science and Technology
- Volume 24 Issue 1
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- Pages.95-99
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- 1996
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- 1017-0715(pISSN)
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- 2233-7180(eISSN)
The Bending and Compression Strength Properties in Rhus verniciflua(I)
한국산 옻나무의 휨 및 종압축 강도적 성질(I)
- Byeon, Hee-Seop (College of Agriculture, Gyeongsang National University) ;
- Shimada, Masahiro (Tokyo Metropolitan Industrial Technology Center) ;
- Fushitani, Masami (Faculty of Agriculture, Tokyo University of Agriculture & Technology)
- Received : 1995.12.05
- Published : 1996.03.30
Abstract
The bending and compression strength properties of two types Rhus verniciflua specimens, which made of no heat-treated wood and heat-treated wood for urushiol extraction, were measured. The heat-treated specimens were finger-jointed with either resorcinol-phenol or polyurethane resin adhesives, and the vertical type bending strength property was also measured in these specimens. The results obtained are as follows ; 1. The correlation coefficient between the compression strength and specific gravity in the specimens of no heat-treated and heat-treated wood was high. However there was no difference in compression strength property as affected by heat treatment. 2 The correlation coefficient between the bending strength and specific gravity in the specimens of no heat-treated and heat-treated wood was also high. However, there was no difference in bending strength property as affected by heat treatment. 3 The bending test showed high correlation between modulus of elasticity and modulus of rupture for the specimens made of no heat-treated and heat-treated wood. However, there was no difference in bending strength property between the specimens made of heat-treated and no heat-treated wood. 4. The efficiencies of bending strength test on the finger-jointed specimens of heat-treated wood with resorcinol-phenol and polyurethane resin adhesives were 0.85, 0.81. respectively.
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