Power floated floor preparation.

[bugs183]

Hi chaps.
Just want to run a job past you that i've just looked at.
Been to see a 33m2 garage floor. It has been down for 6 years, and is power floated. The client has painted the floor, but being power floated it has flaked. Now he wants it tiled. The floor is flat, dry, has no oil or contaminants on it.
I'm thinking of hiring a floor pplaner with a rotary head with tungsten bites to remove the first few mm of the concrete, priming with a dilute epoxy floor primer/bonder, added silica sand as it dries, and levelling whilst still tacky. Then leaving to dry and begin tiling. Sounds ok to me...
Have any of you fella's got any other systems you use to deal with power floated floors.
Cheers, John.

 

[judge]

As long as the planer (scabler)has a good set of frails on it(sometimes they break and dont get replaced )you should be able to take off the coating and the skin of the concrete without having to self level the floor before tiling

 

[bugs183]

It will give the adhesive plenty too key too if the scabler doesn't rip out too much.
Scablings such a lovely job!!!!!

 

[Ajax123]

Enclosed shot blasting or even a needle scabbler might be better. If the top has shaled off in parts you can bet your life there will be patches which are shaling nd weak that will not come away with a scarifier or grinder. They will move with a scabbler. Concrete planer would not really be appropriate in my opinion.