• Title/Summary/Keyword: aqueous polymer-isocyanate resin(MPU-500)

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Physical Properties of Fabric E-glass Fiber Reinforced Laminated Timber (I) - Mechanical Properties - (직물유리섬유 강화집성재의 물리적 특성(제1보) - 기계적 특성 -)

  • Jung, In-Suk;Lee, Weon-Hee;Byeon, Hee-Seop
    • Journal of the Korean Wood Science and Technology
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    • v.31 no.5
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    • pp.23-34
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    • 2003
  • This study was carried out to investigate the mechanical properties of fabric E-glass fiber reinforced laminated timber. Specimens used to Korean red pine(Pinus densiflora) and Japanese larch(Larix kaemferi). Fabric E-glass fiber was inserted in the solid wood with aqueous polymer-isocyanate resin(MPU-500). The results were as follows: 1. Aqueous polymer-isocyanate resin(MPU-500) was good resin to manufacture laminated timber. specially, it was satisfied to property standard of construction laminated timber(KS F 3021) except for two ply glass fiber. 2. Bending and shear strengths of solid wood inserted with fabric glass fibers were not different from control solid wood. But, proportional limit bending stress was increased following the number of fabric glass fibers. Therefore, it was considered that to improve the bending and shear strength of fabric glass fiber reinforced laminated timber, the glass fiber thickness and its mesh should be modified to fitness following working conditions.