FIELD: metallurgy. SUBSTANCE: invention relates, in particular, to repairing metallurgical furnaces (converters, electroarc furnaces) and may find use for industrial furnaces in other areas. According to invention, onto preheated surface of masonry under repair, ceramic mixture containing, wt. -%: refractory filler powder, 75-98.5; highly dispersed metal powder, 1-20; and 0.5-5 of aluminium hydride is applied in oxygen jet. Refractory filler melts because of formation of high-temperature torch when metal and aluminium hydride powders are burned and intermelts with refractory masonry to form monolith layer. EFFECT: provided required chemical composition of welded ceramic mixture, reduced usage of metal powders, and accelerated process.
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