Physical Properties Test of Thorny Acacia Wood (acacia nilotica (l.) Willd ex delile) from Kupang Regency, East Nusa Tenggara Based on the Axial Position of the Wood
Uji Sifat Fisika Kayu Akasia Berduri (acacia nilotica (l.) Willd ex delile) dari Kabupaten Kupang Nusa Tenggara Timur Berdasarkan Posisi Aksial Kayu
DOI:
https://doi.org/10.35726/jw.v1i2.550Keywords:
Moisture content, specific gravity, shrinkage, axial position of wood, Acacia niloticaAbstract
This research is motivated by the use of woods that are commonly used by the community, namely teak (Tectona grandis), mahogany (Swietenia mahagoni), redwood (Pterocarpus indicus wild) and other woods that are considered resistant to damage or of good quality. However, there are other species of wood that are less well known to the public, including the thorny acacia (Acacia nilotica). In Kupang, East Nusa Tenggara, this species is easily found along roads, riverbanks and coastal areas. However, its benefits and uses are not yet known, so the purpose of this study is to determine the physical properties of Acacia nilotica wood based on axial position. Test samples of wood physical properties (moisture content, specific gravity, shrinkage) were obtained from field and laboratory tests. Data analysis used the Completely Randomised Design (CRD) method with 3 replicates at the beginning, middle and end for both moisture content, specific gravity and shrinkage, giving a total of 27 samples. Analysis of variance (ANOVA) was used for data analysis. The results showed that in the axial position of the wood (base, middle and end) the average value of moisture content was 10.43%, specific gravity had an average value of 1.02 and wood shrinkage at the base in the tangential direction was 1.03%, radial was 1.05% and longitudinal was 4.02%, in the middle of the tangential direction of 1.29%, in the radial direction of 1.17% and in the longitudinal direction of 4.34%, and at the end of the tangential direction has a value of 1.16%, in the radial direction of 1.13% and in the longitudinal direction of 4.10%. While the ANOVA test results show that there is no significant effect of axial position (base, centre, tip) on the physical properties of thorny acacia wood (Acacia nilotica).
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