lesmue79
2020-04-08 21:38:14
- #1
Sorry if this might be a stupid question, but I'm somehow struggling with the topic...
The basis would be: our house stands on a 25 cm concrete slab, which in turn rests on 10 cm Styrodur, so my finished floor level is about 50 cm above ground level (with 15 cm floor construction including screed, floor covering, etc.). The ground level would be basically the excavation pit around the house, which was leveled with gravel to be able to set up the scaffolding.
In the area of the terrace, I would now like to proceed by setting curbstones or L-shaped stones in a concrete bed as a boundary, and then fill the resulting frame with gravel and fine grit, compacting it until I reach the height of the finished floor level, and then lay terrace slabs.
My problem/understanding question is: do I have to excavate deeper for the substructure of the curbstones / L-shaped stones? People always talk about 80 cm depth to build frost-proof foundations? Or is it enough if I simply set the frame, whether curbstone, formwork stone, or L-shaped stone, in a correspondingly thick concrete bed on the existing ground level?
I would later fill the frame from the outside with topsoil anyway and sow it with grass, letting it taper off towards the property boundary?
I hope I haven't made it too complicated now...
The basis would be: our house stands on a 25 cm concrete slab, which in turn rests on 10 cm Styrodur, so my finished floor level is about 50 cm above ground level (with 15 cm floor construction including screed, floor covering, etc.). The ground level would be basically the excavation pit around the house, which was leveled with gravel to be able to set up the scaffolding.
In the area of the terrace, I would now like to proceed by setting curbstones or L-shaped stones in a concrete bed as a boundary, and then fill the resulting frame with gravel and fine grit, compacting it until I reach the height of the finished floor level, and then lay terrace slabs.
My problem/understanding question is: do I have to excavate deeper for the substructure of the curbstones / L-shaped stones? People always talk about 80 cm depth to build frost-proof foundations? Or is it enough if I simply set the frame, whether curbstone, formwork stone, or L-shaped stone, in a correspondingly thick concrete bed on the existing ground level?
I would later fill the frame from the outside with topsoil anyway and sow it with grass, letting it taper off towards the property boundary?
I hope I haven't made it too complicated now...