首页> 外文期刊>Forest Products Journal >Characterization of selected wood properties in commercially produced southern pine finger-jointed dimension lumber
【24h】

Characterization of selected wood properties in commercially produced southern pine finger-jointed dimension lumber

机译:商业生产的南方松指接尺寸木材中选定木材特性的表征

获取原文
获取原文并翻译 | 示例
           

摘要

Finger-jointed wood products have been used for decades and were originally developed to help maximize the amount of product recovered from a log. Finger-joints have been widely used in both structural and non-structural applications. Because of the nature of the assembly process of finger-jointed products, there is the possibility that those products would have high variation in the wood properties of specific gravity (SG) and growth rate. An extensive literature review did not reveal any previous studies where the variation of SG and growth rate in finger-jointed wood products was assessed. In this study, the variation in SG and growth rate (rings per inch [RPI]) was assessed in 450 southern pine finger-jointed boards. The wood samples came from 11 different mills in the southeastern United States. The results show that there was considerable variation in SG and growth rate within the finger-jointed boards. On average, the SG of the two pieces of wood making up the finger-jointed board differed by 0.062. The maximum difference reported in this study was 0.315. The growth rate also showed large differences, with an average difference of 2.49 RPI. The maximum difference reported in this study was 13.19 RPI. These large differences in SG and growthrate may have adverse effects on the overall strength of the products.
机译:指接木制品已使用了数十年,最初是为了帮助使从原木中回收的木材量最大化而开发的。指关节已广泛用于结构和非结构应用中。由于指接产品组装过程的性质,这些产品的比重(SG)和生长速率的木材特性可能会有很大差异。广泛的文献综述没有揭示任何以前的研究,该研究评估了指接木制品的SG和生长速率的变化。在这项研究中,在450片南方松指接板中评估了SG和生长速率(每英寸的环数[RPI])的变化。木材样本来自美国东南部的11个不同的工厂。结果表明,指接板内的SG和增长率存在相当大的差异。平均而言,组成指接板的两块木材的SG相差0.062。本研究报告的最大差异为0.315。增长率也显示出较大差异,平均差异为2.49 RPI。该研究报告的最大差异为13.19 RPI。 SG和增长率的巨大差异可能会对产品的整体强度产生不利影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号