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我国丛生竹资源丰富,但其加工利用的开发远远落后于毛竹。为促进丛生竹的开发利用,以3种常见的大径丛生竹油簕竹、越南巨竹和麻竹为材料,加工成竹篾层积材,并对板材的物理力学性能进行测定。结果表明,3种竹篾层积材的含水率在7.02%～7.96%之间,符合《竹篾层积材》规定的标准6%～8%;最小静曲强度为118.40,基本达到标准规定的120;最小冲击韧性为112.86 kJ·m-2,均大于标准规定的110 kJ·m-2,即产品主要物理力学性能基本能达到或超过产品规定的指标,板材的胶合性能优良,各物理力学性能间具有较密切的相关性。因此,在生产实践中,开发和利用这3种大径丛生竹是可行的。
Bamboo is rich in resources in our country, but the exploitation of its processing and utilization has lagged far behind that of bamboo. In order to promote the development and utilization of clumpy bamboo, three kinds of common large-diameter clump bamboo bamboo, bamboo and bamboo were used as materials to process bamboo plywood, and the physical and mechanical properties of the bamboo were measured. The results showed that the moisture content of three kinds of laminated bamboo plywood was between 7.02% and 7.96%, which accorded with the standards of 6% ~ 8% stipulated by “Zhubi laminated timber”; the minimum static bending strength was 118.40 and basically met the standard requirements Of the minimum impact toughness of 112.86 kJ · m-2, are greater than the standard 110 kJ · m-2, that is, the main physical and mechanical properties of the product can meet or exceed the requirements of the product specifications, excellent bonding performance of the board, the physical Mechanical properties have a closer correlation. Therefore, in the production practice, the development and utilization of these three kinds of large diameter bamboo is feasible.