The article discusses the possibility of using coal waste for the preparation of mine concrete. As a result of the research, scientific and prac- tical results were obtained. It has been experimentally proved that when a small fraction of coal, which is a waste of coal mining, is added to mine concrete, the strength of concrete decreases, but with a certain ratio of this strength it is sufficient to ensure the required properties. A series of experi- ments was carried out with the addition of liquid glass to the concrete to control the setting time of the mixture. The properties of coal wastes were determined and the possibility of their use in mine concrete was investigated. It has been established that the introduction of a fine fraction of coal in the optimum quantity into the composition of mine concrete is possible without reducing technological parameters.

The article presents the results of research work on the selection and justification of technological parameters for the production of highly decorative architectural and building products from local mineral raw materials, including technogenic mineral formations. Experimental work has been carried out to obtain new building materials that enhance the decorative and artistic design of architectural objects. Structural and technological parameters are substantiated and a prototype of a new large-format ceramic facing-bearing block is obtained. A search for new architectural forms using crushed natural stone was carried out and a design of a new plinth cladding block with the “saytash” texture was developed. A recipe was developed and prototypes of building products for masonry walls (lego brick and aerated concrete) were obtained, characterized by ease and convenience of masonry with equal strength characteristics. The results of the research are recommended to be implemented for the improvement of architectural objects in the city of Osh.