Research of possibility of producing ceramic paving stones by vibrocompression with the purpose of using them in the improvement of urban areas

Abstract The article presents the results of studying the physic-mechanical and chemical-mineralogical characteristics of raw materials and proposes a clay-based raw material composition to create technology for ceramic pavers by vibrocompression using talc rock. The of ceramic compositions for the production of ceramic pavers are studied taking into account the dominant factors of a two-component mixture to improve the molding, drying and physic-mechanical properties of the finished product. It was found that the introduction of talc into the ceramic composition promotes the formation of high-temperature phases of augite and amphibole, and enhances the processes of mineral formation in clay, with the formation of high-temperature phases - sanidine, ackermanite and augite, which provide samples with high physical and mechanical properties. The basic laws of the structure and phase formation of ceramic compositions at a firing temperature of 1000 ° C, consisting in the occurrence of solid and solid-liquid phase sintering processes at which the phase-mineral composition of the compositions determining the production of ceramic pavers with high strength, frost resistance, are studied, were studied. The possibility of obtaining ceramic pavers that meet environmental and operational requirements in order to use them in the improvement of urban areas (sidewalks, walkways, park areas, playgrounds, etc.) has been proved. It has been established that one of the predominant properties of ceramic paving stones is their significant porosity (up to 30%), which allows quickly absorbing water from atmospheric precipitation and filter it through your body by transferring water to the ground.