I have just torn down part of a wooden wall in my condominium. Now there is a hole (12 x 60cm) straight through the concrete slab where the wall was. The concrete is about 6-7 cm thick and below that is currently mostly debris from the demolition, but otherwise, it seems to be some more porous material.
What I'm wondering about is how I should proceed if I want to fill the hole with new concrete. Or would it be okay to leave the hole as it is? I will be laying pine flooring (20mm thick), plywood, and age-resistant plastic on top.
Should I cover the hole until I fill/lay the floor/do something else?
Please let me know if any important details are missing!
/Staffan
What I'm wondering about is how I should proceed if I want to fill the hole with new concrete. Or would it be okay to leave the hole as it is? I will be laying pine flooring (20mm thick), plywood, and age-resistant plastic on top.
Should I cover the hole until I fill/lay the floor/do something else?
Please let me know if any important details are missing!
/Staffan
Found this old thread: http://www.byggahus.se/forum/koek/12589-hal-i-golvet.html
It doesn't quite feel like the same issue since that thread is about a bathroom, but would it also be sensible in my case to place something as a stop at the bottom, fill with concrete, and smooth with building filler? (IF it's necessary to fill at all, that is..)
I should add that there will be a kitchen cabinet above the hole, and there won't be any weight resting directly on that area.
Grateful if anyone has any thoughts on this..
It doesn't quite feel like the same issue since that thread is about a bathroom, but would it also be sensible in my case to place something as a stop at the bottom, fill with concrete, and smooth with building filler? (IF it's necessary to fill at all, that is..)
I should add that there will be a kitchen cabinet above the hole, and there won't be any weight resting directly on that area.
Grateful if anyone has any thoughts on this..
Do you have neighbors below?swessman said:
Hard to visualize why the plank wall goes through the slab? Is it leveled with 6-7 centimeters after the wall?
But if the apartment is part of a concrete structure then you just need to fill it with concrete. Sometimes when I tear down like you described, you mostly reach sand or the foundation, then I usually just pour in some mortar that I have at hand.
Thank you for the response.
Yes, I have neighbors below. I don't fully understand "is it self-leveling with 6-7 centimeters against the wall."
I'm not sure if I've reached sand or what it might be. What's loose is mixed with plaster dust. Below the concrete, it is more compact.
I don't have mortar on hand, but you mean it should work to pour just about anything directly into the hole and just level it so it's flush with the rest of the floor?
Yes, I have neighbors below. I don't fully understand "is it self-leveling with 6-7 centimeters against the wall."
I'm not sure if I've reached sand or what it might be. What's loose is mixed with plaster dust. Below the concrete, it is more compact.
I don't have mortar on hand, but you mean it should work to pour just about anything
directly into the hole and just level it so it's flush with the rest of the floor?Meant to level with some self-leveling compound six or seven cm after the wall has been mounted.
As it sounds from your description, you've reached the actual concrete construction, so pour in some foam or another inorganic insulation if you're worried about the sound traveling, then fill in with some mortar, or just pour in mortar directly.
As it sounds from your description, you've reached the actual concrete construction, so pour in some foam or another inorganic insulation if you're worried about the sound traveling, then fill in with some mortar, or just pour in mortar directly.