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Utilization of Phosphorus Furnace Slag in Ceramic Wall and Floor Tile.
Valdez EG; Dean KC; Warner LL
NTIS: PB 231 179 :12 pages
Laboratory research demonstrated that ceramic wall and floor tile can be produced from electric furnace phosphorus slags composed of calcium silicates. Grinding the slag in a pebble mill, followed by magnetic removal of deleterious magnetite, produced a raw material that could be compounded and formed into wall tile by dry pressing, sintering, and glazing. The effects of process variables such as forming pressure and sintering temperature were investigated. Wall tile bodies produced by this method were comparable to commercial tile. The tiles were readily glazed to a smooth shiny finish and met ASTM specifications c34-62 for structural clay load-bearing tile. The estimated cost of producing wall tile by this method compared favorably with the retail market value for similar wall tile. Addition of borax or other additives to the ground slag followed by dry pressing and firing likewise produced a commercial grade of floor tile.
IH; Report of Investigation;
NTIS Accession No.
NTIS: PB 231 179
Page last reviewed: December 10, 2021
Content source: National Institute for Occupational Safety and Health Education and Information Division