Pengaruh Peneresan dan Letak Radial Terhadap Sifat Fisika dan Mekanika Kayu Sengon (Falcataria moluccana) dari Hutan Rakyat Purworejo
BARROTUT TAQIYYAH, Ir. Widyanto Dwi Nugroho, S.Hut., M.Agr.Sc., Ph.D., IPM
2024 | Skripsi | KEHUTANAN
Cracking defects in Falcataria moluccana logs after logging are a problem in wood processing for the furniture industry in Purworejo Regency. One of the efforts that can be done to minimize these problems is by girdling. This study aims to analyze the difference in physical and mechanical properties of Falcataria moluccana wood without girdling and 12 months girdling based on its radial location from Purworejo community forest.
The research samples were obtained from six 7-year-old sengon trees planted in community forests in Purworejo. The research design was a completely randomized factorial design using two factors: girdling treatment (girdled and non-girdled) and radial location (near the heartwood, middle, and near the bark). The parameters tested included moisture content, specific gravity, shrinkage, T/R ratio, static bending strength, compressive strength parallel to the grain, and splitting strength. The testing method referred to British Standard 373: 1957.
The results of this study indicate that the interaction between girdling treatment and radial position only affects dimensional shrinkage in the tangential direction and the T/R ratio from fresh to oven-dried conditions, as well as compressive strength parallel to the grain. The girdling treatment significantly affects wood properties by reducing moisture content, wood density, compressive strength parallel to the grain, and splitting strength. Dimensional shrinkage improves longitudinally, but the increased T/R ratio decreases wood stability. Radial position influences wood density, dimensional shrinkage, proportional limit, MOR, and splitting strength.
Kata Kunci : Letak radial, peneresan, sengon, sifat fisika, sifat mekanika.