Plaster tongue-and-groove plate

Mission:
It is applied to construction of interroom partitions.
Tongue-and-groove plates are made of plaster and are intended for construction of the self-bearing partitions in rooms with humidity to 60% (with humidity more than 60% are applied to rooms gidrofobizirovanny plaster plates) civil and industrial buildings. Plaster plates are steady against decay and to an insect, perfectly regulate humidity in rooms. Fluctuation of temperature and humidity does not cause any deformations in plates.

Plates are easily sawn and processed. Due to the high quality of a surface of plates - plaster is not required. The surface is ready under painting, pasting by wall-paper, polymeric coverings, facing by a tile.

Technical characteristics:
Material: natural plaster
Sizes: 666 x 500 x 80 mm
Weight: 26 kg/piece (78 kg/sq.m)
Packing: 30 pieces on the pallet in a thermoshrinkable film of =10 sq.m
Density: 950 kg/m3

Deviations of the sizes:
- on length of 1 mm
- on width of 1 mm
- on height of 0,5 mm

Radiation qualities: 1 class (Aeff = 7,7 Bq/kg)

Water absorption:
- normal plates - 24-26%
- hydrophobic plates - 5%

Pozharostoykost:
- limit of fire resistance of a design not less than 2,5 hours
- a limit of spread of fire - 0

The soundproofing properties:
- an index of isolation of air noise of a design of a partition in one number of plates of Rw = 41 dB
- in need of increase of an index to 55 dB it is recommended to apply a multilayered design.