Assessment of some physical and mechanical properties of Golla bet (Daemonorops jenkinsiana) from north-eastern region of Bangladesh

Q4 Agricultural and Biological Sciences

Journal of Bamboo and Rattan Pub Date : 2004-07-01 DOI:10.1163/1569159041765353

M. Q. Chowdhury

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引用次数: 10

Abstract

The physical and mechanical properties of Golla bet ( Daemonorops jenkinsiana ) from the north-eastern part of Bangladesh were investigated. These properties were studied in three height positions (bottom, middle and top) of three age groups (3, 4 and 5 years old). The variation of these properties due to node and internode has also been determined. Moisture content, volumetric shrinkage and basic density were evaluated from green to oven-dry condition, compressive strength, MOE and MOR were evaluated from green to air-dry condition. The moisture content increased gradually from the bottom to top. The density, compressive strength and bending strength decreased along the culm height from the bottom to the top. It was found that the node and internode had no significant effect on those properties. Effect of age was significant in all cases, except for moisture content and compressive strength. The effect of height was significant in all cases. Golla bet of the 5 years age group showed higher physical and mechanical properties except moisture content and shrinkage and the 3 years age group showed higher moisture content and shrinkage values. Negative correlation was found for physical properties with compressive strength.

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孟加拉东北地区金金花(Daemonorops jenkinsiana)某些物理力学性质的评价

对产自孟加拉国东北部的金金花(Daemonorops jenkinsiana)的物理力学性质进行了研究。在三个年龄组(3岁、4岁和5岁)的三个高度位置(底部、中间和顶部)研究了这些特性。这些性质的变化由于节点和节间也已确定。从生坯到烘箱干燥的条件下对其含水率、体积收缩率和基本密度进行了评价，从生坯到风干的条件下对其抗压强度、MOE和MOR进行了评价。含水率由下向上逐渐增大。密度、抗压强度和抗弯强度沿秆高由下向上递减。节间和节间对这些性状的影响不显著。除含水量和抗压强度外，年龄的影响在所有情况下都是显著的。在所有病例中，身高的影响都是显著的。除含水率和收缩率外，5岁年龄组的古拉贝具有较高的物理力学性能，3岁年龄组的含水率和收缩率较高。物理性质与抗压强度呈负相关。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Bamboo and Rattan Agricultural and Biological Sciences-Agronomy and Crop Science

CiteScore

0.40

自引率

0.00%

发文量

期刊介绍： The Journal of Bamboo and Rattan is a peer-reviewed scientific journal and provides a forum for scientific articles and reviews on all aspects of fast growing, multi-purpose pliable species. The scope of the journal encompasses income security, craft industry, small to medium size enterprises, industrial fibre and fuel. Articles related to natural distribution and conservation of species, genetics and biotechnology, harvesting and production systems, and environmental applications are also included, as well as papers on marketing and policy restraints in relation to bamboo, rattan and related species.