FIELD: concrete production. SUBSTANCE: mix is composed of magnesia and chromium-magnesia scrap powders with grain size at least 0.5 mm, 70-85 wt %, and slag from high-carbon ferrochrome production, 15-30 wt %. Characteristics of concrete: compression strength after firing up to 190 kg/sq.cm, apparent porosity 13-16%. EFFECT: reduced cost due to utilizing waste materials. 2 tbl
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