| 摘要 |
A method for regulating the quality, such as the combustion loss values, of coal ashes so as to make the same suitable for use in cements is disclosed. The method includes mixing ashes having high combustion loss values with fly ashes having low combustion loss values so that the high combustion loss ashes can be used in cements. The ashes are preferably burned prior to the mixing step in order to reduce residual carbon and oily substances present in the ashes. Bottom ashes collected at the bottom of furnaces are ground and fired to have a combustion loss value and a particle size close to those of fly ashes.
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