Fixing crumbling screed floor

[zippyelise]

Hi, I hope someone can help.

I've just taken up some terracotta tiles from a kitchen floor, but in some areas they have taken the badly-layed screed with them and left holes up to 30mm deep, some down to the insulation :-/

I'm having someone come to apply a latex screed to the whole floor next week for an Amtico floor.

I'm hoping that they will be able to repair the holes too but in the event that they are only expecting to lay the screed on top of an reasonably level base, my question is how to repair the holes. Can I fill them with a latex screed compound, mixed with sharp sand perhaps?

Many thanks

 

[ree]

Just about any SLC or sand and cement mix or a combination of SLC and S&C will do as a filler.

Its best to have a dry clean floor for the pre-Amtico latex screed.

Quite what you mean by "latex screed" and what kind of Amtico product is going down probably wont matter.

 

[dazlight]

Best thing to use is

Stopgap 400 rapid repair mortar
Ardex A45 rapid repair mortar
Or similar.

They will dry in a hour.
The Amtico fitter should do it before he screeds the floor really. That's what I do.
Fill holes.
Prime
Screed.