FIELD: construction materials.
SUBSTANCE: invention relates to the industry of construction materials and can be used in making articles from fibre-gypsum concrete composite. Crude mixture for making a fibre-gypsum-cement-concrete composite with polydisperse reinforcement contains gypsum plaster of grade “Г-5 БII”, portland cement grade “ПЦ500 Д0”, volcanic ash, basalt fibre with length of 13 mm, polypropylene fibre with length of 12 mm and water in following ratio of components, wt.%: gypsum plaster grade “Г-5 БII” 28.2-28.3, volcanic ash 34.22-34.55, portland cement grade “ПЦ500 Д0” 7.0-7.1, said basalt fibre 1.1-1.5, said polypropylene fibre 0.35-0.48, water – balance.
EFFECT: wider raw material base, low specific consumption of gypsum, high strength and water resistance of gypsum concrete.
1 cl, 2 tbl
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