Some chemical, physical and mechanical properties of juvenile wood from black fine (Pinus nigra Arnold) plantations
Yükleniyor...
Dosyalar
Tarih
2007
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Asian Network for Scientific Information
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
The aim of this study was to determine some chemical, physical and mechanical properties of juvenile wood from black pine (Pinus nigra Arnold) plantations. Black pine, one of the important softwood species covers the most of the plantations in Turkey. Black pines that naturally grow in Duzce were 20-23 years old with the dimensions of 13-17 cm utilized in this study. Specimens were prepared and tested according to Turkish standards. The physical properties were measured and air and oven dry wood densities were found to be 0.464 and 0.431 g cm-3, respectively. The volume weight was 0.383 g cm-3. The radial, tangential and volumetric shrinkage values were 4.05, 6.19 and 10.24%, respectively. The radial, tangential and volumetric swelling values were also found to be 3.69, 7.79 and 11.5%, respectively. The mechanical tests resulted in that the static bending and compression strengths were 79.1 and 42.4 N mm-2, respectively. In addition juvenile wood had higher lignin and lower holocellulose content compared to the mature wood. Conclusively, the physical and mechanical properties of juvenile pine wood examined in this study were observed to be lower compared to the mature pine wood. © 2007 Asian Network for Scientific Information.
Açıklama
Anahtar Kelimeler
Juvenile wood; Mechanical properties; Physical properties; Pinus nigra
Kaynak
Journal of Applied Sciences
WoS Q Değeri
Scopus Q Değeri
N/A
Cilt
7
Sayı
5
