Exploitation Of Magnesium Oxide-based Solid Waste To Prevent Soil Pollution In The Industrial Zone Of Western Addis Ababa

The Present study focused on the use of magnesium oxide based boards and agrostonernpanel scraps as a filler in magnesium oxide board so that the solid waste i.e. magnesiumoxidernbased scraps can be properly managed and further damage on the environment beingrnprevented. The scrap is taken from the scrap yard and crushed with a jaw crusher then threerntypes of samples were prepared using 0%, 50% and 100% recycled material as mineralrnfiller. The mix proportion of the common MOC cement were maintained and the dolomiternfiller is partially or fully replaced by the powder recycled material(the new filler).After it isrnmixed and let to cure for 7 days, the common physical properties namely tensile,rncompressive and flexural bending strength were determined with the help of computerizedrntesting machines with ASTM testing procedures, Results of 17.3MPa , 28MPa andrn25.5MPa become the tensile, compressive and flexural bending strength test valuesrnrespectively of the sample that uses 50% recycled waste as a filler which is far better thanrnthe product’s standard. Besides, properties like moisture absorption, screw grip force andrncombustibility were also under test. The test result showed the optimum use of the recycledrnboard scrap in the mix brings positive outcome not only on the integrated solid wasternmanagement plan but also on the improvement of the product feature generally

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