作为混凝土混合材配料之一—粉煤灰，它的作用已被探讨多年。由所用原材料设备尚不具备条件，我们只好通过基准混凝土与粉煤灰混凝土进行比较，推出某些一般性结论。 As one of the ingredients of concrete mixing materials - fly ash, its role has been explored for many years. The raw materials used by the equipment are not yet available, and we have to compare some benchmark concrete with fly ash concrete to introduce some general conclusions.