FIELD: production of nontoxic plates on mineral binder for thermal/acoustic insulation and facing in civil engineering. SUBSTANCE: mixture of raw materials for producing gypsum-fibrous plates by hat pressing includes (parts of weight): 150 - 570 phosphogypsum or natural dihydrate gypsum, 100 comminuted wood wastes, 90 - 290 water. Method for producing gypsum- fibrous plates includes mixing gypsum containing raw materials with fibrous filler and water, carpet forming with afterpressing and hot pressing at 150 - 170 C and 6 - 9 MPa pressure during 1 - 2 min. Pressure is released at 2 - 3 MPa/min. rate. EFFECT: 1.15 - 1.3 gram per cubic centimeter, 5.5 - 6.4 MPa bending strength, 3 - 9 % swelling in water during 24 hours. 2 cl
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