Potentials of Dadin-Kowa and Bayo River Silica Sand for Foundry Use
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This study investigated the potentials of silica sand deposits at Dadin-kowa and Bayo rivers for foundry use. The investigation involved chemical, physical and mechanical properties and the casting capabilities. The analytical techniques employed are X-ray fluorescence (XRF), and Atomic Absorption Spectroscopy (AAS) for the characterization of the silica contents of the selected samples. The results revealed that the samples contained SiO2 have the highest percentages of 85.80-86.10% of Dadin-kowa river sand and 94.60-93.90% of Bayo river sand. Physical properties of the samples; the grain fin...
This study investigated the potentials of silica sand deposits at Dadin-kowa and Bayo rivers for foundry use. The investigation involved chemical, physical and mechanical properties and the casting capabilities. The analytical techniques employed are X-ray fluorescence (XRF), and Atomic Absorption Spectroscopy (AAS) for the characterization of the silica contents of the selected samples. The results revealed that the samples contained SiO2 have the highest percentages of 85.80-86.10% of Dadin-kowa river sand and 94.60-93.90% of Bayo river sand. Physical properties of the samples; the grain fineness number, average grain size and grain shape were studied. The mechanical properties; green and dry compression strength, permeability, bulk density and refractoriness in which moisture content was investigated varied from 2 to 6%. The effect of the moisture content on the green compression strength, green permeability and bulk density was also investigated. 4% moisture gave the optimum green compression strength of 78 to 73kN/m2 of Dadin-kowa river sand and 86-87kN/m2of Bayo river sand.
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