Physical and Technical Properties of Composite High-Temperature Thermal Insulation Material based on White-Burning Clay from Kornilovsky Deposit in the Tomsk Region

The relevance of the study of clays from the Kornilovsky deposit (Tomsk Region) is due to the need to find alternative raw materials for industry that can replace imported or expensive materials such as chamotte-talc bricks SHTL-0.6. The use of local overburden can reduce the environmental burden and economic costs, and contribute to the development of regional production technologies. Purpose: The comprehensive analysis of the physicochemical properties (chemical, mineral, granulometric composition, plasticity, fire resistance) of clays and evaluate their technological potential for the use in ceramic, construction, electrical engineering and petroleum industries. Comparison of the material characteristics with its analog (SHTL-0.6) to substantiate the competitiveness. Research findings: It is shown that clays from the Kornilovsky deposit have the best parameters of water absorption, shrinkage and fire resistance that allows their use in the production of ceramics, lightweight building materials and thermal insulation components. Comparison with SHL-0.6 brick shows comparable or improved technical properties, including reduced density and increased heat resistance. Value: The results confirm the feasibility of introducing clays into industry, which can contribute to the development of resource-saving technologies and the expansion of the region's raw material base.