Open AccessKELAS KUAT KAYU TUMIH (Combretocarpus rotundatus (Miq.) Danser) BERDASARKAN BAGIAN BATANG (The the physical and mechanical Properties of Tumih Wood Based on Section Stem)
Author(s) -
Admin Jht
Publication year - 2022
Publication title -
jurnal hutan tropika
Language(s) - English
Resource type - Journals
eISSN - 2656-9736
pISSN - 1693-7643
DOI - 10.36873/jht.v14i2.1150
Subject(s) - shrinkage , composite material , flexural strength , materials science , horticulture , water content , engineering , geotechnical engineering , biology
Tumih wood (Combretocarpus rotundatus (Miq.) Danser) is classified as an unknowntype of wood which is widely grown in peat swamp forests in Central Kalimantan. Thisstudy aims to analyze the physical properties and mechanical properties of wood in axialand radial directions so that they can be utilized properly. The results of the studyresulted in fresh water content and dry air content of wood air, each of which was71,58% and 19,33%, kiln dry weight 0,72, tangential shrinkage 9,68%, radial shrinkage5,02% and longitudinal shrinkage 0,19%. Testing of mechanical properties resulted in aflexural firmness of 618,33 kg/cm2, compressive strength parallel to the fiber 333,27kg/cm2, shear constancy 92,02 kg/cm2, hardness 355,60 kg/cm2, and stiffness at 19,50kg/cm2. Based on the Indonesian Wood Construction Regulations Standard (PKKI) NI 5-1961 tumih wood is included as a strong class III of Indonesian wood, so it is quite wellused for home building raw materials, beams, floor and wall boards, door/windowframes, and furniture.Keywords: tumih wood, physical properties, and mechanical properties.