FIELD: ferrous metallurgy. SUBSTANCE: method involves the use of strengthening addition in refractory masses containing components at the following ratio, wt.-% carbonic materials 23-36, and silica-containing materials 64-77. Fraction of silica-containing materials is 0.1-15 mcm, ratio of silica to carbon is 1.4-2.6. EFFECT: strength of refractory masses in increased by 2-3 times, output of blast furnace is increased by 3-5% 1 tbl
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