halltd
Well-Known Member
not structural support for the finished garage, but you have to hold the weight of the curing concrete on the floor above with something... once the concrete is cured, then the pylons(columns) and the rebar will hold it.
You don't need a concrete slab to support the formwork and shoring. I've worked on plenty of projects where the ground floor slab is poured months after the rest of the structure is completed and the shoring bears right on dirt.