May 9 2012 2 yes you can.
Tile directly on concrete wall.
Scrub concrete walls with a wire brush to remove debris dust or any other materials stuck to the wall.
This was in the kitchen area.
The board is then pressed into place on the wall and adjusted for plumb and level.
Repair any loose or cracked tiles.
A worker used generous amounts of concrete applied directly to the back of the tile and then set in place.
Ceramic and porcelain tile are so frequently installed at or above grade level on a cement board underlayment or directly on plywood that it almost seems novel to install tile directly on concrete.
Remove the tile and prepare the wall according to the corresponding instructions above or tile over the existing tile.
For the bathroom i believe they put a plastic membrane in place first for waterproofing.
Otherwise you can fix the wall tiles with cement to even out the surface.
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Yet this application does make sense since concrete is heavy solid and is typically thought of as an unbending uncompromising material.
This is best if the surface is somewhat uneven or marred.
If existing tiles are beyond repair remove the tile and install a piece of wallboard in its place.
Wash the wall with tsp tri.
If there is no structural damage and the wall may still be able to support the weight of the tiles you can proceed with the work.
To do so make sure all of the tiles are intact and secure.
The thinset will firmly bond the board to the concrete surface concealing all surface imperfections on the concrete behind the construction board and leaving a perfectly level and even surface for the tile.
Grind off all ridges or mortar protruding out from the wall with a concrete grinder.
Installing tile directly on concrete.
When the concrete wall is plumb tile can be applied directly to the surface or a metal lath can be fastened to the wall with a scratch and brown coat of mortar.
Thank you very much for your help.
Can i tile directly onto the concrete wall.
This is exactly what they do in china.