Properties of Board Manufactured from Sawdust, Ricehusk and Charcoal

Abstract

In this study, the environmentally friendly material charcoal was added to ricehusk, an agricultural by-product, and sawdust, which emerges during the sawing process, to produce board by mixing ratio and concentration levels of ricehusk and charcoal; it then investigated its physical properties for development purposes and achieved the following results. The water absorption and thickness swelling of the compounded board produced per adding ratio of ricehusk and charcoal showed a gradually decreasing tendency along with the increase in adding ratio of the charcoal, and as the density of the compounded board increased, the water absorption decreased, while the thickness swelling increased. The internal bond strength of the compounded board had indicated its highest value of 0.49N/mm 2 at the density of 0.7g/cm 3 . This satisfied the quality standard for KSF 3104 Particleboard. The internal bond strength of the compounded board manufactured per adding ratio of ricehusk and charcoal showed a steady decrease with the decrease in the adding ratio of ricehusk, and an increase in the addingratio of the charcoal. Also, in cases when the ratio of the ricehusk and charcoal by KSF 3104 quality standard were 35:5 and 30:10, it satisfied the quality standard of 15.0-type, whereas it satisfied the 13.0-type quality standard if the ratios were 25:15 and 20:20. It showed a tendency of increasing hardness of the compounded board with the increase in density, and decreasing hardness with the increase in the adding ratio of the charcoal.

Density Profile and Sound Absorption Capability of Ceramics Manufactured from Sawdust, Chaff and Charcoal: Effect of Carbonization Temperature and Mixing Ratio

“…As for the manufacturing conditions of boards, the resin content was fixed at 10% of the board weight and the density was fixed at 0.6 g/cm 3 . Four types of boards were manufactured by varying the contents of the sawdust, chaff, and charcoal to 50:35:5, 50:30:10, 50:25:15, and 50:20:20 (Hwang and Oh, 2020). In this instance, the hot pressing temperature was set to 170℃, and the pressure was set to 40, 30, and 20 kgf/cm 2 considering the hardening of the adhesive and spring back.…”

Selected Properties of Particleboard Made from Sugar Palm (Arenga pinnata) Dregs

“…The application of materials with a high lengthto-thickness ratio (slenderness ratio) improves the bending properties compared with shorter and thicker materials (Iswanto et al, 2020;Kwon et al, 2013;Rofii et al, 2013Rofii et al, , 2016. Hwang and Oh (2020b) High-quality particleboard properties can be achieved by mixing particles of different shapes and sizes under optimal conditions. This study was conducted to determine the physico-mechanical properties of particleboard Faza AISYADEA et al…”

Influence of Alkali and Silane Treatment on the Physico-Mechanical Properties of Grewia serrulata Fibres

“…There is a lot of focus on developing wood-based products including agricultural by-products for structural applications in many of the countries in the Indian sub-continent and South East Asia (Azmi et al, 2019;Hwang and Oh, 2020;Iswanto et al, 2020;Jamaludin et al, 2020;Jose et al, 2022;Khan et al, 2021;Sumardi et al, 2022;Wibowo et al, 2021). Grewia serrulata (GS) trees are found in many locations in India, mainly the Western and Eastern Ghats and regions in the state of Assam, and belong to the Tiliaceae family.…”