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.
The article presents the results of scientific and experimental studies on the creation of ceramic refractory material. Montmorillonite clay (bentonite-like) of the Pogodaevsky deposit and ferro-dust from self-decaying slags of low-carbon ferrochrome of the Aktobe ferroalloy plant were selected as the most effective types of raw materials in terms of their physico-mechanical properties and chemico-mineralogical composition. The composition of ceramic mass in chamotte - ferro dust - binder and rational technological parameters of molding, drying and firing was developed. The basic physical and mechanical properties of the obtained ceramic samples, which have high strength, average density, low linear thermal expansion coefficient and fire shrinkage, are studied. Ceramic samples based on the proposed raw material composition can withstand temperatures up to 1350 С, which is 200-300 С higher than ceramic samples based on clay raw materials. The high strength indices and refractoriness of samples are explained by the fact that in result of heat treatment of the studied ceramic composition, a densely sintered framework with reinforced refractory minerals such as forsterite Mg2 (SiO4) and spinel (MgAl2O4) is formed. The prospects of this research area are associated with the creation of innovative technologies for the production of popular refractory materials, but also with an environmental issue. Processing of technogenic resources of Kazakhstan will not only reduce the consumption of natural resources, but also reduce the human impact on the environment.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.