MANUFACTURING METHOD FOR ARTIFICIAL AGGREGATE, AND ARTIFICIAL AGGREGATE

摘要

PPROBLEM TO BE SOLVED: To provide a manufacturing method for an artificial aggregate using coal ashes as a main raw material, by which method the artificial aggregate having such a low water absorption coefficient and such high strength properties as a natural aggregate has is economically manufactured. PSOLUTION: The coal ashes, which are a main raw material, and an adding-component controlling agent and/or a forming aid are together charged into a crusher, and subjected to mixing and crushing which are simultaneously operated. Then the mixed and crushed product, as it is or a formed product of the mixed and crushed product is fired in a rotary kiln. PCOPYRIGHT: (C)2006,JPO&NCIPI