FIELD: chemistry.
SUBSTANCE: invention relates to manufacture of expanded aggregates for concrete. Charge for manufacture of the expanded aggregate comprises as follows, wt %: montmorillonite clay 84.5-85.0, coal, ground and screened through sieve №2.5 - 2.0-3.0, silica glass, ground and screened through sieve №2.5 - 7.0-9.0, portland cement 3.0-5.0, sulphate soap, stirred in water at 40-45°C, 0.5-1.0.
EFFECT: improved durability of expanded aggregate.
1 tbl
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