Sifat Fisika dan Mekanika Kayu Jelutung (Dyera costulata) dari Hutan Tanaman Rakyat, Kalimantan Tengah

Abstract

The physical and mechanical of jelutung wood come from the community plantation forest, village of Kelampangan, Sebangau district, Palangka Raya city, Central Kalimantan, It was observed in this study with the aim of deciding to match the use of jelutung wood according to the properties of physics and mechanics. The wood cut was taken at 50 5 5 centimeters for MOE's test and at 50 3 3 centimeters for testing the mor taken from three jelutung wood. Test samples using universal testing devices mechine (utm) Manuals and digital calipers to test shrink on jelutung wood. The coinage of jelutous wood range from 0.38, 0.37 and 0.34 and based on an average of 0.36 wood that is included in the strong IV class. the rate of depreciation in tangential and radial directions ina sequence is 0.28 and 0.11. MOE's two-time repeat sequence has 27.6 and 23.6. MOR tests with double repetition also have a value of 46.35 and 216.2.