FIELD: production of composite materials. SUBSTANCE: method involves mixing of binder with fillers, adding of sealing liquid and special additive, pouring of concrete mixture and wetting of concrete. Product of cultivation of Bacillus species in sugar-containing aqueous solution represents mentioned above specific additive having water-retaining ability. After pouring said concrete mixture is allowed to stand till concrete accumulate its initial strength, then its wetting is carried out. EFFECT: improved efficiency of the method. 2 cl, 1 tbl
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Authors
Dates
1997-06-10—Published
1994-03-14—Filed