FIELD: construction.
SUBSTANCE: invention relates to the industry of construction materials, particularly to production of wall panels and blocks. In order to solve the task, the crude mixture for making the bearing layer of the wall panel contains the following components, in wt%: semi-aqueous gypsum – 83.78–89.1, pulp and paper production waste – sludge (in terms of dry substance) – 1.39–10.0, technical lignosulphonates (in terms of dry substance) – 0.79–0.9, superplasticizer based on naphthalene sulphonate – 0.01–0.06, quartz sand – the rest, with water-gypsum ratio of 0.7–1.7.
EFFECT: reduction of labor intensity of manufacture, improvement of adhesion with insulation, reduction of time required to achieve required strength, increase of bending tensile strength, reduction of shrinkage, increase of fire resistance, reduction of noise level, improvement of operational properties of the manufactured product.
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