I have an old home that is shifting. Our porch has cracks in it as does along the stair and base. The cracks are about an 1/8 "
I want to seal them before the winter so the cracks dont spread.
Butyl rubber caulk.
This is what I Googled, "caulk for concrete and brick"
If you can find gray polyurethane caulk it is way better then butyl.
It also costs more.
Nothing is going to work for long if you don't fix the problem of shifting. The cracks will keep getting bigger and anything you put in them will fail.