Formation of Product Structure During Firing of Ceramic Composites Based on Overburden Rocks from Coal Mining

The article is devoted to the issues of crystallization structure formation during the firing of ceramic products based on overburdened rocks from coal mining in the Ekibastuz coal basin. In the work, the questions of change of characteristics of fusibility and process of formation of crystallization structure of products are considered. Peculiarities of mineral formation at firing depending on lithological types and depth of occurrence of overburden rocks are revealed. The optimum mode of firing has been developed. The physical and mechanical parameters of ceramic samples obtained after firing have been determined. It is established that overburden rocks of coal mining belong to refractory raw materials of medium-temperature sintering and can be used for the production of building ceramic products under appropriate technological preparation