RAW MIX FOR PREPARING REFRACTORY MATERIAL Russian patent published in 1996 - IPC

FIELD: building materials industry. SUBSTANCE: mix comprises (wt%): 35-52 olivinite weathering crust modulus of lasicity of 1.3-2.2 of having not more 65% of 0.5 mm fractions, aglodunite or chromospinelide or olivinite having 25-35% of less than 0.5 mm fractions, 20-25 periclase or modified mixture of periclase and chromospinelide in ratio of from 1:1 to 1:3 wt parts and 3-5 inorganic bond consisting of sodium polyplosphate- lignosulfonate. EFFECT: elimination of overpressed cracks, lower porosity and improved strength.