kinetics of grinding

Grinding aids (GAs) for cement clinker milling is used to reduce the energy required to achieve a given degree of cement powder dispersion. Some products in the GA, commonly referred to as performance enhancers, have a positive effect on the hydration of cement, improving the strength of the concrete. At grinding of materials simultaneously occur two opposite processes: the destruction of particles by external force and the aggregation of particles, which can be arbitrary, as well as due to external compressive forces.