FIELD: refractories.
SUBSTANCE: composition according to invention comprises (i) 30-75% of aluminosilicate hollow microspheres, in particular light fraction of flue ash from heat-and-power stations with content of microsphere fraction 0.5 mm 94% and (ii) 25-70% of/ bundle, in particular alumina. Material can be further supplemented by chamotte. In latter case composition will contain 30-60% aluminosilicate hollow microspheres, 30-50% chamotte powder, and 10-20% alumina.
EFFECT: improved mechanical properties of articles.
2 cl, 1 tbl
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