| 摘要 |
PROBLEM TO BE SOLVED: To provide a raw material composition which contains carbon and nonetheless, enables an aluminosilicate cured body having reduced irregular color due to the carbon to be produced, and to provided an aluminosilicate cured body using the raw material composition.SOLUTION: The raw material composition of an aluminosilicate cured body is provided that contains burnt ash containing silica, alumina and unburned carbon, an alkali metal salt and an additive and the additive is one or more of naphthalenesulfonic acid-based and polycarboxylic acid-based. The additive is preferably contained in an amount of 2.9 to 46.0 mass% by a ratio to the unburned carbo in the total solid content. Further the burned ash is preferably one or more kind of coal ash, paper making ash, slurry ash and biomass boiler ash. Further an antifoam agent preferably is contained. The invention also provides an aluminosilicate cured body formed from a raw material composition.SELECTED DRAWING: Figure 1 |
