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| dc.contributor.author | Balemlay, Alehegn Muche | |
| dc.date.accessioned | 2022-03-28T07:15:29Z | |
| dc.date.available | 2022-03-28T07:15:29Z | |
| dc.date.issued | 2021-10 | |
| dc.identifier.uri | http://ir.bdu.edu.et/handle/123456789/13339 | |
| dc.description.abstract | Agricultural residues are materials generated in large quantities in Ethiopia, and recycling them is a viable alternative to improper disposal in landfills, which can have negative environmental consequences. This study aims to develop and characterize particleboard from recycled coffee husk, maize cob residues, and lowland bamboo chip composition. A particle size ranging from 0.75mm to 3mm, and a Bamboo/Coffee husk/Maize cob particleboard (BCMPB) were produced at Debre Birhan plywood production companies in a variety of particle weight ratios. The particles were bonded using 12% UFR and a hot-pressing machine was used to press particleboard. Experimental testing of BCMPB was performed to determine mechanical properties (bending, compressive, and impact) strength under dry and wet conditions, and physical properties (Density, WA, and MC) tests as per (JIS A 5908) and (ASTM D 1037) standards. Comparatively, for all proposed combinations of BCMPB, particleboard made from the combination of BCMPB-4 had better physical and mechanical properties than the other types of BCMPB while BCMPB-6 had the lowest outcomes in both wet and dry conditions. The proposed solutions BCMPB-4 were validated with the commercial eucalyptus particleboard and standards. Between them a solid consensus was reached. Under dry and wet conditions, increasing the bamboo particle weight ratio and decreasing the coffee husk and maize cob particle weight ratio increased the mechanical and physical properties of BCMPB. The experimental results confirm that the bending, compressive, and impact strength of the proposed solutions BCMPB-4 were higher than the commercial products by 13.05%, 23.06%, and 14.07% under dry conditions and 23.03%, 15.45%, and 21.25%, under wet conditions respectively, and the results meet IS3087 standards. Thus, the proposed solution BCMPB-4 made from 75% bamboo, 12.5% coffee husk, and 12.5% maize cob particles can be a good candidate for replacing commercial eucalyptus particleboard, and the environment will be protected from the negative side effects of eucalyptus trees. Keywords: bamboo, coffee husk, eucalyptus tree, particleboard, maize cob. | en_US |
| dc.language.iso | en_US | en_US |
| dc.subject | Mechanical Design | en_US |
| dc.title | Development and Characterization of Particleboard from Recycled Coffee husk, Maize cob Residues, and Lowland Bamboo Chip Composition | en_US |
| dc.type | Thesis | en_US |
