Study on the size reduction process of rotary kiln clinker with grinding aids and the evaluation of the effectiveness of grinding

The size reduction process of rotary kiln clinker with grinding aids and its hydration properties were explored and the effect of the size reduction was estimated by hydration properties of cement mortar. For cement clinker, rapid hydration at early age is not always helpful to obtain high strength cement. The evaluation of effect of clinker's size reduction should be based on the combination of cement properties and grinding energy consumption. In this work, the most appropriate fineness of rotary clinker was found to be about 5000 m2/g Blaine,and the use of grinding aids may reduce duration of grinding by 25% for reaching the projected fineness.