Mokrytska V. High-refractory concretes on the basis of cements, which contain aluminates, silicates and circus of barium

The object of study: the phase formation processes of clinker on the basis of compositions system BaO - Al2O3 - ZrO2 - SiO2. Purpose of the study: development of special cements versatile on the basis of compositions system BaO - Al2O3 - ZrO2 - SiO2, including hydraulically active phase with high strength characteristics, properties and the ratios of mass absorption gamma-radiation, intended for creating resistant to radiation concretes with simultaneous exposure to temperatures above 1500 °С. Research Methods and Equipment: thermodynamic, x-ray, petrographic, differential-thermal, electron-microscopic, a complex of physical and mechanical methods, and statistical methods of planning of experiment with the use of computers. Technical properties of the materials developed were determined in accordance with standard methods. Theoretical and practical results: on the basis of developed by the research and experimental data have developed effective cements versatile with a complex of set operational characteristics on the basis of compositions system BaO - Al2O3 - ZrO2 - SiO2; developed technological instruction on typical technological process for production of aluminium-barium zirconiumsilicate cement. Novelty: according to the results of thermodynamic predictions installed physico-chemical and kinetic regularities of the formation of the set of phase compositions in the synthesis of clinker on the basis of the BaO - Al2O3 - ZrO2 - SiO2 system, were set, and these regularities causing the formation of the necessary micro crystalline hydrate splice in cement stone and properties that satisfy the conditions of the selected operation areas. Degree of introduction: The results have been introduced in the educational process of the NTU "KhPI". Industry of use: results of work can be used at the enterprises of metallurgy with the introduction of refractory linings, ramming masses and gunning mass of concrete. In the energy industry resistant to radiation cements and concretes on their basis can be used in a variety of nuclear power engineering facilities. The scientific results of work can be used in higher educational institutions for preparation of specialists on the technology of refractory non-metal and silicate materials.