grinding aids

The influence of three types of surfactants on the following clinker properties: specific surface area, sorption behavior (hygroscopicity), water repellency, and flowability has been studied. Experimental results show that the surfactants have different influence on the grinding kinetics and properties of clinkers that mainly depend on the surfactants concentration than their origin or state of matter. Use of special surfactants as grinding aids is proposed.

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.