I have removed a concrete block partition in the basement. The concrete block wall extended about 15 cm below the concrete floor, so now there is a trench in the floor that needs to be repaired. The existing basement floor seems to consist of three layers: at the bottom against the ground is a hard concrete slab, in the middle, about 10 cm of pumice stone crush, and on top, polished hard concrete. The pumice stone crush seems quite clever as it probably both insulates and acts as a capillary break.
Now to the question. How do I repair the trench?
Now to the question. How do I repair the trench?
A small clarification. So, the trench goes down to the lowest floor layer - the hard concrete. I need to replace the pumice gravel with something. Would leca balls work? Which concrete for the top layer is best?
Another problem I now notice is that the floor level differs by almost a cm. How do you best level the floor surface? Self-leveling compound or masonite? I'm thinking there should be a Platon mat against the concrete.
Another problem I now notice is that the floor level differs by almost a cm. How do you best level the floor surface? Self-leveling compound or masonite? I'm thinking there should be a Platon mat against the concrete.
Why not try Cellbetong. Foam plastic beads with cement as a binder. There are quick-setting ones that can be cast over after 3 hours. Check out K-rauta, they have it.
However, you must apply a few cm of leveling compound to achieve load-bearing capacity. If you're going to self-level anyway, you might as well do the whole way including the "ditch."
However, you must apply a few cm of leveling compound to achieve load-bearing capacity. If you're going to self-level anyway, you might as well do the whole way including the "ditch."
Click here to reply