Engineering properties of Hornbeam wood in Veisar region

تحقیقات علوم چوب و کاغذ ایران

卷:5

Fardad Golbabaei¹  Abdolrahman Hosseinzadeh²  Nooshin Toghraie³ 

[1] Wood and Forest Products Science Research Division, Research Institute of Forests and Rangelands, Agricultural Research Education and Extension Organization (AREEO) P.O. Box 13185-116, Tehran, Iran;

[2] Wood and forest products division, Research Institute of Forests and Rangelands, Agricultural Resear;

[3] Wood and forest products division, Research Institute of Forests and Rangelands, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran;

关键词: HORNBEAM WOOD;    Carpinus betulus L;    Vaisar region;    Mechanical and physical properties;   

DOI  :  10.22092/ijwpr.2000.117494

来源: DOAJ

【 摘 要 】

To determine major engineering properties of Hornbeam wood (Carpinus betulus L.) in Vaisar region of Caspian Forests (North of Iran), adopting ASTM (D-143) Standard specifications, the matched small clear specimens were prepared. The test materials were derived from three randomly chosen trees. Mechanical and physical properties were measured on two moisture states: green and air - dried (at 12% moisture content).The influence of locations of specimens in the height of tree trunks and geographical directions were tested on target properties. From the results of this study it could be concluded that, there were no significant differences between the various heights and geographical directions from the pith for most of the properties investigated.Toughness was not influenced by moisture content. The average value of hardness of Hornbeam wood in transverse sections were the same as side_grain sections in green condition, but air-drying caused increasing the value of cross - sections about 30% The compression strength perpendicular r to the grain showed differences in wet and dry conditions.

【 授权许可】

Unknown