Abstract
Study of physio-chemical properties studies such as granulometric analysis, moisture, X ray fluorescence etc. were performed with Type C coal—combustion fly ash to investigate their potential as a distinct option for molding sand in foundry, thereby reducing the dependency on latter. Technological properties study such as compressive strength, tensile strength, permeability and compaction of various compositions of fly ash molding sand (10, 20 and 30 % fly ash substitute to chemically bonded sand) were performed and compared with silica molding sand. Steel casting production using this fly ash molding sand was done and the casting surface finish and typical casting parameters were assessed. It was noted that a good quality steel casting could be produced using type C fly ash molding sand, which effectively replaced 20 % of traditional molding sand and binders thereby providing greater financial profits to the foundry and an effective way of fly ash utilization (waste management).
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Palaniappan, J. Study on Type C Coal Fly ash as an Additive to Molding Sand for Steel Casting. J. Inst. Eng. India Ser. D 98, 139–145 (2017). https://doi.org/10.1007/s40033-016-0115-y
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DOI: https://doi.org/10.1007/s40033-016-0115-y