FIELD: construction.
SUBSTANCE: paper and/or cardboard mass is ground, ground mass is soaked in hot or cold water for swelling and maintained for 60-240 minutes, polyvinyl acetate is added to the swollen mass in the proportion from 1:7 to 6:7 in respect of the ground mass at weight ratio, and the produced mass is mixed for 30-90 minutes to dough consistence, adding a concentrated water-based colouring pigment of certain colour. The produced mass is laid into a shaping-stress mould or penta-elastic moulds for two thirds of height of the mould boards with placement of one or two layers of reinforcement glass fabric plastering net in it with cells of 2-5 mm, then along the length of the mould onto the surface of the mass they lay a T-shaped metal profile as a joint displacement indicator with thickness of 6-10 mm and coat it with additional amount of the specified prepared mass to the upper edge of the mould boards. Then the mass is compacted, removing mass surplus, the mass is frozen, removed from the mould and dried in the dry room until ready, afterwards the finished panel is painted.
EFFECT: improved panel characteristics.
1 ex
