/ Pipe in concrete slab, rather than rebar? #1
We have some old 1 1/2" heat pipe which is somewhat pitted, so not suitable for anything else which I would use it for such as a flagpole. I've been thinking about using it for reinforcement, and am wondering if losing that much concrete would affect the structure. It will just be in a couple of small outbuildings, so not that much harm done if it doesn't work as planned; and definitely better than a gravel floor.