FIELD: process engineering.
SUBSTANCE: invention relates to metallurgy. Proposed mix comprises the following components in wt %: finely dispersed quartz sand - 55.00-60.00, dispersed Portland cement clinker - 12.00-18.00, sodium salt of carboxymethyl cellulose - 0.30-0.45, and water.
EFFECT: ruling out gas defects in casting.
2 tbl
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