IMPLEMENTATION OF THE MATHEMATICAL PLANNING OF AN EXPERIMENT METHOD IN SELECTING OPTIMAL COMPOSITE MATERIAL BASED ON GYPSUM BINDER FILLED WITH WOOD FILINGS

Statement of the problem. The selection of composite material optimal composition is a complex task that can be solved using the method of mathematical planning of an experiment. The development of a new composite finishing building material based on a gypsum binder filled with wood filings is condi-tioned by the need to find ways to solve the problem of reducing the cost of finishing materials while maintaining their environmental friendliness and other operational parameters.Results. The article carried out the mathematical planning of an experiment on the selection of the optimal composition of a new building finishing material based on a gypsum binder filled with wood filings. Re-sponse equations are obtained for the following characteristics of the material: gypsum binder consumption per unit volume, density, thermal conductivity coefficient, transverse bending strength and compression.Conclusions. Based on the analysis of the level of perception of the characteristics of the material (appli-cation of an expert assessment method), the experimentally obtained results of the regression assessment allow one to determine the composition of a new finishing material based on the perception of gypsum binder by wood filings.