ON NEW METHODS FOR SELECTING THE OPTIMAL MINERAL FILLER FOR COMPOSITE CEMENT BINDER

The article presents the results of theoretical and experimental studies on the development of a scientifically based methodology for the appointment of plasticizing chemical additives and mineral fillers when selecting the compositions of complex-modified concretes (CMC) at the design stage. A classification of plasticizing additives is proposed based on the degree of reduction of the surface tension of water when they are introduced and the activity of mineral additives based on the reduced hydration activity index, allowing for the production of highly economical CMCs with the required property indices.