ABSTRACT
The expediency of adding fillers in cement composites follows mainly from well-known cement stone representations as a "micro-concrete" in which the hydrated phase, obtained by the chemical interaction of cement grains of less than 30 microns with water, performs the role of a matrix and the role of the filler belongs to coarse cement grains, hydrated from the surface. Mineral fillers in cement systems are conventionally divided into active and inert. Following modern theoretical representations on the cement systems structure formation, the second group of mineral fillers, which do not directly interact chemically with cement hydration products, is not exactly called inert. The scientific hypothesis that is experimentally verified is that in order to neutralize the negative and to obtain the positive effect of the dispersed fraction of stone crushing waste added into cement systems, it is necessary to prevent a significant increase in water demand of mixtures.
