水分循环对辐射松树脂浸渍压缩山毛榉钉抗侧移性能的影响

IF 1.3 Q2 MATERIALS SCIENCE, PAPER & WOOD

International Wood Products Journal Pub Date : 2021-03-30 DOI:10.1080/20426445.2021.1906389

C. Gerber, Krizza Collado, J. Morrell

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引用次数: 2

摘要

摘要：树脂浸渍木钉为使用更多可再生材料代替金属紧固件创造了机会，但关于水分循环对性能的影响，几乎没有数据。将经过反复润湿和干燥的树脂浸渍压缩山毛榉钉与使用辐射松木的钢钉的性能进行了比较。在～12和～50%含水量之间循环的截面在剪切中进行破坏性测试。对于两种类型的连接器，容量随着暴露于一个潮湿循环而略有增加。只有在5或7个水分循环后才观察到对木钉硬度的显著负面影响。金属钉以韧性的方式失效，而木材连接器以脆性的方式失效。结果表明，木紧固件可以承受一定的润湿，但重复的水分循环将对性能不利。

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Impact of moisture cycling on lateral resistance of resin-impregnated compressed beech nails in radiata pine timber

ABSTRACT Resin impregnated wood nails create an opportunity to use more renewable materials in place of metal fasteners, but there are few data on the effects of moisture cycling on performance. The properties of resin impregnated, compressed beech nails that had been subjected to repeated wetting and drying were compared with steel nails using radiata pine lumber. Sections cycled between ∼12 and ∼50% moisture content were destructively tested in shear. Capacity increased slightly with exposure to one moisture cycle for both connector types. Significant negative effects on wooden nail stiffness were only observed after 5 or 7 moisture cycles. Metal nails failed in a ductile fashion while the timber connectors failed in a brittle mode. The results suggest that wood fasteners can withstand some wetting, but repeated moisture cycling will be detrimental to performance.

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来源期刊

International Wood Products Journal MATERIALS SCIENCE, PAPER & WOOD-

CiteScore

2.40

自引率

0.00%

发文量