Investigation of influence of chemical water treatment sediments content in initial raw material on physical and mechanical properties of paving tiles

The purpose of the presented work is to study the influence of chemical water treatment deposits in the raw material on physical and mechanical properties of paving tiles and technological parameters of their production. Preliminary studies conducted on the use of technogenic products of the energy complex (precipitation of chemical water treatment of thermal power plants) as additives in the production of clinker ceramic materials showed that their use does not impair the quality of the final product. On Obolsky Ceramic Plant prototypes of ceramic clinker paving tiles (ceramic clinker bricks) were produced with additives of technogenic products of the energy complex (precipitation of chemical water treatment). Addition of precipitation of chemical water treatment in the amount of 2 % of weight allows to reduce the burning temperature of articles by 40-60 °C without deterioration of physical and mechanical properties of the article, which is important in terms of energy saving and will lead to reduction of cost of ceramic products. Studies of the physical and mechanical properties of the prototypes showed that ceramic clinker tiles (ceramic clinker bricks) with the addition of technogenic products of the energy complex (precipitation of chemical water treatment of thermal power plants) comply with STB 1787-2007. Based on the results of the studies performed at Obolsky Ceramic Plant, specifications for ceramic clinker tiles and technological regulations for their manufacture are developed.