Floor tile laying - uses an adhesive which expands on hardening to take up floor irregularities

摘要

To lay floor coverings, especially floor tiles, the adhesive used to bond the tile to the floor increases its volume during hardening, to take up irregularities in the floor surface. The adhesive expands under hardening, with the expansion pressure which is not greater than the specific gravity of the floor tile. The adhesive is applied at a rate so that at least 65% of the floor tile surface towards the floor is coated with the adhesive after harden ing. The adhesive is applied in strips either to the reverse surface of the floor tile or to the floor. The volume increase of the adhesive has a selected and defined value so that, with a max. 100% cover on the reverse surface of the tile, the reduction of the thickness through compression as the tile is laid is a max. of 40% of the adhesive thickness on application before the tile is laid. The tile can have a shaped plastics joint to give a keyed bond between the adhesive and the lower edge of the joint. The reverse surface of the floor tile can be fitted with recess strips to hold and align the adhesive and distribute the adhesive evenly over the tile surface. ADVANTAGE - The method gives easy floor tile laying, even when the floor is rough and uneven, to give a smooth floor surface.