Levelling a concrete floor

Grumps · 2017-01-25T23:21:47+00:00

Hi All I have a concrete kitchen floor that is not level enough for my liking. I am about to lay ceramic tiles. It is basically a valley. The high points are along opposite walls, and the low point is 18mm down and about 2.5m from the highest point (roughly 2/3 the way across the room). If I use self levelling compound then I'm going to need 8-10 20kg bags. But, if I manage to reduce the level of just a one metre strip along the high-point wall by 12mm, then all I'll need is 2-3 bags. I have my trusty little angle grinder that I've slowly done a small area by cutting lots of slices and then chiselling the bits out. But do you reckon a grinding cup wheel would be a better/quicker solution? The room is sealed from the rest of the house, and I have a decent face mask. I've made a quick calculation and the amount of concrete that needs to be removed is about 2/3 cubic foot. Ta for any comments or alternative suggestions.

Jan 25, 2017 22 Replies

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rick 9 years ago

If you really want to lower it - rent a scrabbler for 1/2 a day

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rick 9 years ago

or pour some self levelling screed in the low parts .. so what you have to make good with tile adhesive is not excessive.

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John Rumm 9 years ago

With SBR it will stay together at 10mm IME. However we are talking more than that by the time the self levelling is over the top.

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