МРНТИ 67.15.47                                                                                                 №4 (2020г.)

Мontayev S.А.,  Taudaeva А.,  Мontayevа N.S., Ryskaliev   M.Zh. 

The article presents the results of scientific and experimental work on the development of the composition of the raw material composition in the clay – ash from Ekibastuz power station – siliceous rock – flask system in order to obtain useful ceramic materials. The basic laws of changes in the physical-mechanical properties of heat-treated samples at temperature of 1000°C based on the composition of the raw material composition limited by the following maximum concentrations of components, wt. %: Flask 30-50, clay 30-40, ash 10-40 are established. It has been established that the changes in the physicomechanical properties in the studied ceramic masses are associated primarily with the chemical and mineralogical characteristics of the raw materials used. In the case of a minimum content (up to 10%) of ash in the composition of the ceramic mass, a decisive role
in the formation of the porous structure and low average density, ceramic samples plays siliceous rock – flask. The obtained research results serve as the basis for developing a technology for the production of efficient and highly demanded building materials of a wide range (ceramic paver blocks, heat-insulating structural wall ceramic materials, heat-insulating ceramic plates, lightweight porous aggregates).
Keywords: raw material composition, ash Ekibastuz GRES, siliceous rock, flask, efficiency, clay, technology, microstructure.