Feasibility study on production partition wall board made by rice husk and saw dust

Abstract

In various industries, the accumulation of rice husk and sawdust has posed significant environmental challenges, necessitating innovative solutions for their utilization. This research presents an experimental investigation into the feasibility of producing partition wall boards using a blend of rice husk and sawdust as raw materials, along with an adhesive composition comprising wood glue (top bond) and water. The study involved a meticulous mixing process of rice husk, sawdust, wood glue, and water, with a predetermined mixture ratio of 0.75 kg rice husk and saw dust, 0.152 L wood glue, and 0.10 L water, combined manually using a mixer. The resulting mixture was poured into molds with dimensions of 30 cm × 30 cm × 15 cm. Rice Husk and saw dust Particleboard samples were subjected to water absorption and compressive strength tests to confirm their mechanical performance as building and structural materials. The percentages of water absorption were then calculated and were 16.67%. This value indicates that the board should be reserved for indoor application since percentage water absorption absorbed increases with increasing time of immersion. The results showed that and compressive strength ranging from 2Mpa up to 2.25 MPa respectively and the cost estimation of the partition wall board were 99.6Rwf per 0.09 m 2 . It is concluded that partition wallboard made by both RH and SD can be utilized in the manufacture of a water-resistant particleboard tropical area like Rwanda with long raining season because the test results showed that the rice husk, water and wood glue combination provides results which have high potential to be used in the production of particleboard.