Calcium silicate is a mineral building material consisting of silicon dioxide, calcium oxide, water glass and cellulose and is hardened by steam. It is absorbent, mold-resistant and non-flammable.
The building material is usually used in the form of panels.
To make insulation boards from calcium silicate, lime and quartz sand pores are added and the mixture is then soaked in water. Under high pressure, the plates are then hardened with the help of steam.
Properties:
In hardened form, calcium silicate is pressure-resistant, dimensionally stable, alkaline, permeable to diffusion and non-flammable. It can absorb and release moisture and also has thermal insulation properties.
Application:
In many cases, the panels are used to combat mould, in special cases also as interior insulation of external walls. As cladding, calcium silicate serves as structural fire protection.
Processing:
Similar to aerated concrete, the material can be sawn and drilled. The panels can be glued to mineral, gypsum-free substrates. In order to avoid rear ventilation, a point-bead method is not recommended and full-surface bonding with the help of a notched filler is recommended. The surface can then be provided with a mineral plaster, light paper wallpaper or lime-cement smoothness. Diffusion-inhibiting layers should be avoided so as not to impair the properties of the board.
In addition, the panels can be glued to interior walls with clay mortar or, if used as a fire retardant, screwed together to simplify installation.
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