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Suleymanova L.A., Pogorelova I.A., Marushko M.V., Ognev N.V. VIBRO-VACUUM GYPSIFEROUS COMPOSITES Porous structure of concrete can be got not only by gassing, but also from correct Rayleigh Plesset equationby factor of external pressure. Vibration-vacuum method of aeration of forming mixes allows to get wide gamma of effective building materials with porous structure, one of which is expanded gypsum concrete.

Currently in Russia, great importance is attached to actual issues of energy saving and energy efficiency in construction. Valid regulations require addressing issues related to improving the energy efficiency of buildings. The development and manufacture of new types of effective thermal insulation materials is one of the ways to solve assigned tasks. The use of industrial waste from mining and processing plants as a filler for polyurethane foam is considered in this paper. Samples from the filtration field of the tailings of Stoilensky GOK from various sites are taken as the studied raw materials; their granulometric, chemical compositions and harmonic diameters of the filler particles are determined. According to the calculation results, the dependence of the foaming coefficient on the average harmonic diameter of the filler is determined. The experiment-planning matrix is developed; according to its results, mathematical models are constructed for the dependence of the foaming coefficient of laboratory samples of polyurethane foam filled with tails. Three tail zones based on the results of sampling are considered. Analyzing the obtained results, a quantitative and qualitative assessment of the influence of each factor individually and their combination on the change in the “composition - properties” system is derived.