I am going to cast a number of footings for a deck/patio, no roof, glassed enclosure, or anything special otherwise. In our ground, there are terrible amounts of stones, ranging from small to 100-150 kilos. It is excavated about 50 cm over the entire area, and now I will make the footing holes there. Not more than 70-80 cm as it was done previously on an older deck. But when I dug in one place, I got about 10 cm, then there's a huge stone underneath. Given that it is very hard in the ground and there are a lot of stones, do you think I can do it like this?
1. Drill into the stone and drive down one or a couple of rebar into the stone that points upwards
2. Build a small "edge" around the stone with gravel/smaller stones, pour concrete on the stone and then fit the form tube over the rebar and make sure it attaches to the "sole."
3. Finish casting the tube
4. Backfill around the tube.
Or how else can you do it if you must have the footing by the stone and you rule out digging up the stone? Attached is an image of how I am thinking...
No problems at all with doing as you planned. That's what my father did when he built a summer cottage in the 70s. The house still hasn't settled. Just make sure it's a big stone, feel that it's really solid with the crowbar.
No problem at all with doing as you planned. That's what my father did when he built the summer cabin in the 70s. The house still hasn't settled. Just make sure it's a large stone, make sure it feels really solid with the crowbar.
Ok! Sounds like an acceptable solution then, if the cabin has stood that long a deck should too.
Thanks for the reply
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