Leveling a Basement Floor
Looking for advice. Had 3 concrete contractors give me 3 different solutions.
I need to level the (1958, Maryland) 700 sq/ft floor after filling in the chasms left from the plumbing rough-in. The perimeter gap is for a french drain and will have dimple board. Its not feasible to fill gaps with regular concrete and use self-leveler concrete because of the large number of bags I would need $$$. Existing slab is 4”.
The general consensus was to pour 3” of 3-4000 PSI concrete over the entire floor. Some wanted to fill the gaps with gravel first so the entire new pour was a consistent 3”. Others said to pour the entire thing without adding gravel to the gap areas. One said he would drill rebar dowels into the sides of the gaps so that it was tied to the new pour.
I will eventually cover the entire concrete floor with LVP flooring and make this a living area. I have enough room height-wise to pour 3” and still have 7+ feet.
I do not want to use gypcrete or dig up the rest of the floor. I don’t think the lally columns are on footers. Thanks.
Plastic no plastic? – PSI? gravel in gaps first or no gravel? – rebar dowels? mesh wire anywhere? – concrete conditioner first or no – 3” height?
Thanks – Jacob
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