Deyneka V. The corrosion-resistant binding materials on the base of the CaO-BaO-Fe2O3-SiO2 system polyfunctional setting

The object of research: the process of phase formation of calcium-barium ferrosilicate clinkers. The aim: development and obtaining corrosion-proof barium-containing cements on the base of the system CaO-BaO-Fe2O3-SiO2 compositions, which have high strength characteristics, corrosion- and sulfate-proof and high gamma-radiation protection at high temperatures, as well as development concretes on its basis Research methods and apparatus: thermodynamic, petrographical (polarization microscope MIN-8), optical (scanning electron microscope REMMA-102), X-ray (DRON-3M), thermogravimetric (derivatograf R-1500D system F. Paulik -J. Paulik-L. Erdeu), chemical analysis methods of materials and physical and mechanical methods. Theoretical and practical results: new corrosion-proof binding materials of multifunctional using with performance complex on the base of compositions of the system CaO-BaO-Fe2O3-SiO2 are developed taking into account scientific concepts and experimental data obtained; energy- and resource-saving technology of calcium-barium ferrosilicate cement is developed and physical, mechanical and technical properties of obtained cements are determined. Novelty: by results of thermodynamic predictions the physical-chemical and kinetic regularities of phase compositions formation at clinker synthesis on the base of the system CaO-BaO-Fe2O3-SiO2 are determined, this fact causes the formation of high-strength crystalline hydrate microstructure in the hardening cement stone and leads to formation of the properties for selected regions of using. Degree of introduction: the results are recommended for application in the educational process of NTU "KhPI". Industry of use: scientific results of dissertation can be used in oil and gas fields at cementing the "hot" wells. In the energy industry the protection cements and concretes on its base can be applied at various nuclear power facilities.