method of production of cement and hydraulic binding agent as well as the cement and hydraulic binding agent, and method to upgrade class of cement and application of cement

摘要

The invention is related to a method of preparation of activated cement, characterized in that it includes a step, in which burnt cement components selected from a group including clinker, optionally fly ash and optionally other conventional additives, are ground in an electromagnetic mill. A method for preparation of hydraulic binding agent containing activated cement, characterized in that it includes a step, in which the starting cement, optionally in a mixture with fly ash, is activated by additional grinding in an electromagnetic mill, is also presented. The invention is also related to the activated cement and a hydraulic binding agent containing it.