FIELD: composition is used in building materials production, in production of wall facing plates, floor plates, etc. SUBSTANCE: aim is to decrease cellulose fiber consumption. Aim is realized due to the fact, that composition has following components, mas %: semiwatered gypsum 77.7 - 87.5; cellulose fiber 1.0 - 19.5; reinforcing addition 0.5 - 9.0; dewatered gypsum 2.3 - 2.5. As reinforcing addition they use woody fiber, wood chips, cotton combings, glass or basalt cut fiber or cotton untwisted fiber or their mixtures. EFFECT: decreased fiber consumption. 1 tbl
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