Increasing the efficiency of manufacturing products from dolerite of the Severo-Buskunskoye deposit by gluing them with polymer composites

The North Buskun dolerite deposit is located 10 km from Sibai RB. This deposit belongs to highly decorative stones, which is due to the uniformity and saturation of its black color and good polishability. At the same time, the main disadvantage of the North Baksan deposit is the low yield of usable products from mined blocks, which is approximately 35% of the extracted stone. The paper examines the types of cracks on the dolerite and the possibility of gluing them with polyester-based glue. It has been established that sawn blanks do not break through glued small cracks when they are ground and polished on a knee-lever machine. At the same time, frost resistance, color, tonality, uniformity, quality of polishing and stuffing of drawings on glued blanks with small cracks practically did not differ from the indicated quality indicators in areas of dolerite without defects.The restoration of the quality indicators of the dolerite of the North Baksan deposit due to the gluing of small cracks with polymer composites ensured an increase in the yield of usable products from 35 to 85%.