THE INFLUENCE OF SURFACTANTS ON THE PHYSICAL PROPERTIES OF CLINKERS

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. Molecules of these compounds should consist of a functional group and hydrocarbon chain that does not contain additional functional groups. Such surfactants provide not only grinding accelerating but also storage life prolonging. The research work demonstrates that fatty acids and organosulfur compounds satisfy these conditions and they can be successfully used as a cement grinding aid.