DEVELOPMENT OF MASS COMPOSITIONS FOR PRODUCTION CERAMIC TILES FOR INTERIOR CLADDING THE WALLS AT KERAMA MARAZZI LLC

The article analyzes the key aspects of developing new ceramic masses for the production of facing ceramic tiles, in which some of the raw materials are replaced with more affordable Russian materials. The implementation of this technology helps to eliminate the shortage of high-quality raw materials, reduce production costs, while the physical and mechanical properties either improve or remain at the same level. The possibility of using clay from the Chibisovskoye deposit and chalk additives for the production of ceramic tiles intended for interior wall cladding is considered. The analysis of the main physical and mechanical properties of the raw materials was carried out. For this purpose, the X-ray phase analysis method was used. The physical and mechanical properties of ceramic masses of various compositions were determined using standard methods: water absorption, open porosity, and apparent density were determined in a vacuum gauge, bending strength was determined on lever installations equipped with removable supports using the three-point loading method of the sample. In addition, the advantages and disadvantages of replacing clay from the Maloarkhangelskoye deposit with Chibisovskaya, as well as the effect of increasing the chalk content, were identified. It has been established that replacing Maloarkhangelsk clay with Chibisov clay improves the sintering process, which in turn has a positive effect on water absorption. Increasing the proportion of chalk in the composition improves the quality of sintering of the masses with an unchanged tensile strength indicator.