从水泥品质角度试验研究了水泥的抗裂性。利用灰色关联分析原理，对水泥各个品质指标因子进行主次分析。分析结果表明C^₂S含量对水泥抗裂性影响最大，成正比例关系，而C^₃S含量与水泥抗裂性负相关；从灰色关联分析结果的绝对值来看，影响水泥净浆开裂时间的因子排序为：C^₂S含量＞比表面积＞C^₃A含量＞C^₃S含量＞C^₄AF含量。

On the basis of the theory of grey connection analysis, the correlation between the qualities and crack resistance of cement is experimentally studied. The results show that the content of C^₂S, which affects the crack resistance of cement maximally, has a positive interconnection with the crack resistance of cement, and the content of C^₃S has a negative interconnection. The sequence of factors that affect the cracking time of cement paste is C^₂S content>specific surface area >C^₃A content>C^₃S content>C^₄AF content.