粉磨方式对硅酸盐水泥颗粒和早期水化行为的影响

Effect of grinding method on the particle and early hydration behavior of Portland cement

采用同一批熟料,通过辊压机终粉磨、辊压机—球磨机联合粉磨和实验室球磨三种粉磨方式粉磨。试验发现,在细度相同时,不同粉磨方式制成的水泥颗粒特性具有较大的差异。水泥颗粒形状、形貌对水泥的早期水化行为(如:标准稠度、凝结时间、流动度和水化热)影响较大,但1d的水化总放热量却相差不大。

Using the same batch of clinker, and grinding them by three different methods roller press finishing grinding, roller press-ball mill combined grinding and laboratory ball mill. It is found that the characteristics of cement particles made by different grinding methods have great difference in the same fineness. The particle shape and morphology of cement affect greatly on its early hy- dration behavior （such as： the standard consistency, setting time, fluidity and hydration heat）, but the total amount of ld hydration heat has little difference.