HIGH-FREQUENCY DIELECTROMETRICAL CONTROL OF INFLUENCE OF DISPERSED MINERAL ADDITIONS QUANTITY ON PROPERTIES OF CEMENT COMPOSITIONS
Efficiency of the use of mineral additions in cement materials compositions depends on many factors, including the type and quantity of additions. Widely used methods of evaluation of addition's effect foresees determination of strength of cement stones samples after hardening. At the same time together with the strength index the choice of the optimal quantity of addition can be realized on structural-sensitive dielectric characteristics of cement mixtures. It was shown that on concentration dependence of content of mineral addition-vollastonit in the initial period (10-120 min) after mixing with water, extreme (minimal) value of dielectric losses corresponding to optimal quantity (7 mas. %) of addition with achieving maximal strength by cement stone is found. Distinct correlation connection between dielectric and mechanical properties makes it possible to consider dielectric method of analyses as perspective, operative and not laborious method of the choice of optimal additions content and technological regimes of cement materials production.