Physical and mechanical properties of athel wood (Tamarix aphylla)

Bu çalışmanın amacı, üzerinde çok az çalışma yapılmış ve ticareti fazla yapılmayan Ilgın (Tamarix aphylla) odununun fiziksel ve mekanik özelliklerinin belirlenmesidir. Ilgın odun örnekleri, Molyvos bölgesinin (Midilli, Yunanistan) kıyı kesimlerinden toplanmış ve toplanan örneklere standart test metotları uygulanmıştır. Ilgın odununun hava kurusu ve fırın kurusu yoğunlukları sırası ile 0.3 ve 0.6 g/$cm^ 3$ olarak belirlenmiş, teğet yöndeki en yüksek daralma ve suda şişme oranları ise %10.8 ve 12.1 olarak hesaplanmıştır. Hacimsel daralma ve şişme oranları ise sırası ile %14.0 ve 15.5 olarak öngörülmüştür. Kopma ve elaktil modül ile modülü, liflere parallel direnci ve Janka sertlik değeri ise sırası ile 88.5 N/ $mm^ 3$, 7533 N/ $mm^ 3$, 40.9 N/ $mm^ 3$ ve 33.7 N/$mm^ 3$ bulunmuştur.

Anahtar Kelimeler:

odun özellikleri, orman ağaçları, Tamarix aphylla, büzülme, mekanik özellikler, fiziksel özellikler, şişme, odun yoğunluğu, ağaç işleme

Ilgın odununun (Tamarix aphylla) fiziksel ve mekanik özellikleri

The aim of this work was to determine the main physical and mechanical properties of athel wood (Tamarix aphylla), one of the least studied non-commercial wood species. Wood samples of Tamarix aphylla were collected from a small tree stand in Molyvos coastal area (Lesvos, Greece) and standard test methods were followed on small green specimens. Athel wood’s air- and oven dry densities were determined at 0.73 and 0.66 g/$cm^ 3$, while maximum tangential shrinkage and swelling were approximately 10.8 and 12.1%, respectively. The volumetric shrinkage and swelling were estimated at 14.0 and 15.5%, respectively. Modulus of rupture, modulus of elasticity, compression strength parallel to grain and Janka hardness (perpendicular to grain) values were found to be 88.5 N/$mm^ 3$, 7533 N/$mm^ 3$, 40.9 N/$mm^ 3$ and 33.7 N/$mm^ 3$, respectively.

Keywords:

wood properties, forest trees, Tamarix aphylla, shrinkage, mechanical properties, physical properties, swelling, wood density, woodworking,

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ASTM D 143-94, 2005. Standard methods of testing small clear specimens of timber. The ASTM Book of Standards, Philadelphia, PA, USA.

Baum, B.R., 1978. The Genus Tamarix. Israel Academy of Sciences and Humanities, Jerusalem, Israel, pp. 96.

DIN 52182, 1994. Prüfung von Holz - Probenahme - Grundlagen; DIN-Taschenbuch 31, Beuth, Germany.

DIN 52184, 1979. Prüfung von Holz; Bestimmung der Quellung und Schwindung. DIN-Taschenbuch 31, Beuth, Germany.

DIN 52185, 1976. Prüfung von Holz; Bestimmung der Druckfestigkeit parallel zur Faser. DINTaschenbuch 31, Beuth, Germany.

DIN 52186, 1978. Prüfung von Holz; Biegeversuch. DIN-Taschenbuch 31, Beuth, Germany.

Nasir, G.M., Fatima, N., Suleman, K.M., 2007. Technological properties and suitability determination of some non-commercial timbers on the basis of anatomical properties. Pakistan Forest Institute, Pakistan.

Orwa, C., Mutua, A., Kindt, R., Jamnadass, R., Anthony, S., 2009. Agroforestree Database: a tree reference and selection guide version 4.0.

Tesky, J.L., 1992. Tamarix aphylla. In: Fire Effects Information System. U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, Madison.

Tsoumis, G., 1991. Science and technology of wood: Structure, properties, utilization. Van Nostrand Reinhold, New York, USA, pp. 82.

Voulgaridis, E.V., 2009. Commercial European and tropical woods: structure, properties and uses (in Greek). Aristotle University of Thessaloniki, Greece, pp. 92.

Zheng, Y., Pan, Z., Zhang, R., Jenkins, B.M., Blunk, S., 2006. Properties of medium-density particleboard from saline Athel wood. Ind. Crop. Prod. 23, 318–326.

Zheng, Y., Pan, Z., Zhang, R., Labavitch, J., Wang, D., Teter, S., Jenkins, B., 2007. Evaluation of different biomass materials as feedstock for fermentable sugar production. Appl. Biochem. Biotech.137-140 (1-12), 423-435.