(一)前言粉煤灰是燃煤电厂的煤粉经燃烧后收集到的具有火山灰活性的细微粉末。随着火力发电的发展,粉煤灰的排放量不断增长,它的利用问题已经突出地摆在我们面前。我国粉煤灰利用主要有以下几个方面: (1)作为水泥的原料和混合材。目前 (I) Introduction Fly ash is a fine powder with pozzolanic activity collected from the combustion of pulverized coal from coal-fired power plants. With the development of thermal power generation, the emission of fly ash continues to grow, and its use has been highlighted before us. China’s fly ash utilization mainly includes the following aspects: (1) It is used as a raw material and a mixed material for cement. Currently