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粉煤灰可以作为水泥的混合材和混凝土的掺合料。它可以增加混凝土的后期强度。因为在水泥中添加了粉煤灰以后,再用水混合,其和易性较好,可以减少需水量。本发明的目的是对粉煤灰进行改良,以扩大使用性能。用本发明的方法可以使粉煤灰颗粒表面多孔化,而且在粉煤灰颗粒表面上生成毛细状的托勃莫来石的针状结晶的粒状体,而且这些粒状体中混合着钙矾石结晶体。
Fly ash can be used as a mixture of cement and concrete admixtures. It can increase the late strength of concrete. Because fly ash is added to cement and then mixed with water, the workability is better, which can reduce the amount of water required. The purpose of the present invention is to improve fly ash in order to increase the use performance. According to the method of the present invention, the surface of the fly ash particles can be made porous, and on the surface of the fly ash particles, capillary-like particles of needle-like crystals of tobalite are formed on the surface of the fly ash particles, and these granules are mixed with ettringite Crystals.