How do I fill in a tracked floor?

[M841]

Hi
An electrician has run protective conduits in the floor. Chiseled out a concrete layer of about 5 cm, then sand/fill material.

Now I want to fix the floor before the floor layer installs the flooring. What could I use to repair this?

 

[Henkan Sundberg]

A little self-levelling compound should solve that quite easily.

 

[snuttjulle]

Start by asking the flooring installer about his requirements so you don't do something he doesn't want to lay flooring on. Then I think that leveling compound can be harder to get right than regular fine concrete since it so easily finds its way into any hole, causing it to disappear. Fine concrete doesn't do this and works well to get a nice surface once it has started to set properly.

 

[Plupp 405730]

Absolutely not leveling compound, instead clean and moisten the surfaces and fill in with fine concrete up to 50mm thickness, if it's thicker you use coarse concrete.
Then regular concrete needs quite a long drying time before you can lay, for example, vinyl flooring, not sure what type of flooring you are going to use?

 

[Henkan Sundberg]

Absolutely do not use levelling compound, instead clean and dampen the surfaces and fill in with fine concrete up to 50mm thickness. If it's thicker, use coarse concrete.
Regular concrete needs quite a long drying time before you can lay, for example, vinyl flooring. I don't know what kind of floor you are planning to use?

Please explain to me why compound doesn't work so I don't give incorrect advice again. I have filled similar holes several times with compound and it has worked every time.

 

[Plupp 405730]

Please explain to me why filler doesn't work so I don't give wrong advice again. I have filled in similar holes several times with filler and it has worked every time.

Because self-leveling filler has different properties than concrete..

 

[M841]

floor- basparkett floor

 

[Henkan Sundberg]

For self-leveling compound has different properties than concrete..

Can't you be a bit more detailed? There is floor leveling compound for 50mm thickness. I'm not trying to troll but am genuinely interested.

 

[Plupp 405730]

Can't you be a bit more detailed? There is floor leveling compound for 50mm thickness. I’m not trying to troll, I am genuinely interested.

It can work, but structurally you don’t want to mix them because they are two different products..
I'm not a chemist, but there's no reason to use a more expensive product that could go wrong..

 

[Plupp 405730]

floor- base parquet floor

Ok, so the floor installer will self-level the entire area?

 

[Henkan Sundberg]

It can work, but from a construction perspective, you don't want to mix because they are two different products. I'm not a chemist, but there's no reason to use a more expensive product that could go wrong.

It can work, but from a construction perspective, you don't want to mix because they are two different products. I'm not a chemist, but there's no reason to use a more expensive product that could go wrong.

Ok, so saying it absolutely doesn't work isn't quite accurate, in other words. I have used Ardex products for this since they have filler for raw concrete with good results many times, expensive yes, but convenient and never gone wrong. But let's not hijack the thread; of course, TS can do as he pleases.

Have a nice evening!