Mechanical Properties of Natural Materials from Kalimantan as Substitute Material for Reinforcement Buildings

Abstract

Kalimantan has abundant natural resources, including wood. The physical properties of wood have varying strength and flexibility and could replace concrete reinforcement steel. In this study, the mechanical properties and sound insulation of one of Kalimantan's natural fiber combined with polyester matrix were investigated. Natural fibers used were teak wood (Tectona Grandis) with sawdust and wood chips. Specimens were made using the hand lay-up method with a wood volume fraction variable of 25%, 35%, and 50%. Afterward, the bending, morphology, and sound insulation tests were carried out. In this study, it can be concluded that the higher wood volume fraction used, the higher the ability of sound insulation. Conversely, it reduces the modulus of elasticity. Besides, the form of sawdust fillers has a better ability than wood chip fillers in terms of sound insulation and the modulus of elasticity.

Development of Virgin Coconut Oil Fermented Tank Using Teak Wood Powder Insulator

“…Teakwood sawdust is used in this research for its low thermal conductivity values of 0.022W/mK (Baheramsyah et al, 2019). Teakwood sawdust is also good to be used as building reinforcement and also for noise insulators (Laksono et al, 2019). Moisture content and the wood powder density will have a positive correlation with thermal conductivity (Gong et al, 2021).…”