Inorganic shaped body containing a petrifying component.

摘要

An inorganic, aqueous molding composition is described which can be hardened at low temperatures into molded parts having a high flexural stress at break. The molding composition is produced from electrostatic precipitator ash of high-temperature coal-burning power plants, this ash containing 45-55% by weight of vitreous SiO2 in addition to Al2O3, or from calcined bauxite by reaction with an alkaline alkali silicate solution at a low temperature; fillers being optionally present.