FIELD: chemistry.
SUBSTANCE: cement concrete that self-decomposes in water is made from a mixture containing, wt %: portland cement with limestone 26.0-56.0, high-alumina cement 0.6-2.4, hemihydrate gypsum 3.0-6.0, quartz sand - the balance; hardening water of the mixture with water to solid ratio of 0.1-0.18; a plasticiser can be used.
EFFECT: obtaining self-decomposing concrete with controlled time of full decomposition in water ranging from 2 weeks to 6-9 months.
2 cl, 7 tbl, 18 dwg
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