Study on sheet material made from zephyr strands V: Properties of zephyr strand board and zephyr strand lumber using the veneer of fast-growing species such as poplar |
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| Authors: | Yu-Jung Kim Motoaki Okuma Toshimine Yokota |
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| Institution: | (1) Faculty of Agriculture, The University of Tokyo, 113-8657 Tokyo, Japan;(2) Forest Products Division, Tokyo Center for Quality Control and Consumer Service, Ministry of Agriculture, Forestry and Fisheries, 185-8511 Tokyo, Japan;(3) Present address: Forestry and Forest Products Research Institute, 305-8687 Tsukuba, Japan;(4) Present address: Faculty of Agriculture, Kyushu University, 812-8581 Fukuoka, Japan |
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| Abstract: | Zephyr strand board (ZSB) and zephyr strand lumber (ZSL) were produced using zephyr made from poplar veneer to investigate the greater utilization of low-density poplar as a structural material. These materials were then compared to ordinary plywood, laminated veneer lumber (LVL) from poplar veneer, lauan plywood, and particleboard. The bending properties (moduli of rupture and elasticity) of ZSB proved superior to those of poplar plywood: and ZSL produced from poplar veneer zephyr had bending properties greater than ordinary LVL from poplar veneer. Apparently, the conversion of the poplar veneer into zephyr material had a positive effect on bending properties. Additionally, poplar ZSB had bending properties superior to those of lauan particleboard and equal to those of lauan plywood. The internal bond strength of poplar veneer ZSB was nearly two times greater than that of lauan particleboard.Parts of this report were presented at the international symposium on the utilization of fast-growing trees, Nanjing, China, October 1994. Report IV appeared inMokuzai Kogyo 49:599, 1994 |
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| Keywords: | Zephyr strand board Zephyr strand lumber Poplar veneer zephyr |
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