PECULIARITIES OF FORMATION OF PORTLANDCEMENT POTENTIALS BY JOINT PRINTING OF CLINKER AND GYPSUM STONE
The morphology and chemical composition of the surfaces of various fractions of grain factory Portland cement clinker grinding and experimental with the natural gypsum stone. It is shown that when co-grinding of clinker and gypsum before the second soft component and finely ground and adheres to the surface of the grains clinker forming islands on them, films and layers of different thickness. These soft and sticky plaster units reduce friction and collision force of particles during grinding, which leads to a decrease in the intensity of the grinding and related specific surface area (S). The curves change specific surface clinker the clinker and gypsum to 8 %, depending on the time region is formed in the range of S = 2000-4000 cm<sup>2</sup>/g, which indicates that the presence of gypsum can reduce the magnitude of S to 20 %. The dependence of the gypsum concentration in the different fractions of the duration of grain portlandcement grinding in a ball mill.