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首页> 外文会议>Canadian Society for Civil Engineering annual conference >PHYSICAL AND MECHANICAL PROPERTIES OF EGYPTIAN CASUARINA EQUISETIFOLIA
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PHYSICAL AND MECHANICAL PROPERTIES OF EGYPTIAN CASUARINA EQUISETIFOLIA

机译：埃及Casuarina Equisetifolia的物理和力学性质

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摘要

Casuarina Equisetifolia is one of the largest species of the genus Casuarina, attaining a height of 20-35 m and diameter of 0.5- 1.5 m. The tree was introduced in Egypt in the first part of the 20th century and has been used extensively as a wind breaker. Its wood is mainly used as fire wood and its use in other products has remained fairly limited. Casuarina Equisetifolia yield of wood is 40-120 tons per hectare per year and about 40 tons per hectare per year of litter and cones in 10 years. One of the reasons behind its restricted use in other products is the extremely limited amount of data about its physical and mechanical properties. This paper presents the results from a yearlong test program on the Egyptian Casuarina Equisetifolia. The main goal was to determine and classify the mechanical and physical properties of Casuarina Wood and compare with other commercially important wood. Physical properties tests for the Moisture Content, Shrinkage in volume, Specific gravity were performed. Mechanical properties tested included Toughness, Hardness, Static Bending, Compression (perpendicular & parallel), Tension (perpendicular & parallel), Cleavage and, Nail Withdrawal. It is shown that the wood has superior mechanical properties suggesting its potential use in many applications. Difficulties in drying and proper cutting of the wood are cited as the most important challenges for the commercial use of Casuarina Equisetifolia on a commercial scale. In addition, recommendations about methods of wood production are provided.
机译：Casuarina Equisetifolia是Casuarina属的最大种类之一，达到20-35米的高度，直径为0.5-1.5米。这棵树在20世纪的第一部分在埃及引入，并被广泛使用作为绕风断路器。它的木材主要用作防火木材，其在其他产品中的使用仍然相当有限。 Casuarina Equisetifolia木材的产量每年40-120吨，每年每年垃圾和锥体每公顷40吨，10年。其限制在其它产品背后的原因之一是其物理和机械性能的极限数量。本文介绍了埃及Casuarina等一年试验计划的结果。主要目标是确定并分类Casuarina木材的机械和物理性质，并与其他商业上重要的木材进行比较。物理性质试验的水分含量，体积收缩，进行比重。机械性能测试包括韧性，硬度，静态弯曲，压缩（垂直和平行），张力（垂直和平行），切割和钉子撤退。结果表明，木材具有优异的机械性能，表明其在许多应用中的潜在使用。干燥和适当切割木材的困难被认为是Casuarina Equisetifolia在商业规模上的商业用途最重要的挑战。此外，提供了关于木材生产方法的建议。

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