FIELD: mining industry.
SUBSTANCE: method includes prior stabilizing of gelatinous form of bentonitic clay with admixture of polyacrylamide in amount of 1-2% of dry clay mass. Then, received mixture is injected into compound for building of isolating construction in amount of 5.0 to 12.5% of compound mass. Also, stabilizing of gelatinous form of suspension of bentonitic clay is performed by means of preparation of homogenous water suspension of bentonitic clay with polyacrylamide and later drying of it at temperature of 30-50°C. Received mixture is then used in crushed form.
EFFECT: higher quality of isolation of fire and exhausted extraction portions, simplified realization of method, means for ecological safety and lesser costs.
2 cl, 1 dwg, 1 tbl
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