Test result shows that the mixing of this three materials accompany with increasing grind fineness, the strength of compound cement with large amount of fly ash can be improved significantly.

试验结果表明，选用粉煤灰、低钙石与沸石复合三掺，并相应提高粉磨细度，可明显地提高大掺量粉煤灰复合水泥的强度。

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The properties of the composite cement were studied by orthogonal test, which was prepared by the clinker, slag and fly ash with different fineness and mixed after separately grinding.

采用分别粉磨再混合的方式，利用正交试验方法，研究了熟料、矿渣及粉煤灰的不同细度组合对复合硅酸盐水泥物理性能的影响。

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