CRYSTALLIZED MARBLE AND ITS MANUFACTURING METHOD BY USING BURNED ASH

摘要

A crystallized artificial marble is fabricated using incineration ash. In a fabrication method, incineration fly ash of 50 to 80 weight percent is mixed with SiO₂ of 20 to 50 weight percent and additives of 0.1 to 3 weight percent for coloring, clarification, and reinforcing. The mixed material is melted at 1300 to 1500° C. for 0.5 to 1.5 hours and water-cooled to form granulation slag. Then the granulation slag is screened to separate fine particles according to size. After mixed with particulate, the granulation slag is deposited in a refractory die and heat-treated at 1000-1200° C. for about 1 hour or less and at 850-1050° C. for about 2 hours or less.