Foundation crack repair options – is cutting out a slice a dumb idea?
I’m putting lipstick on a pig by adding mortar to some large cracks in a basement wall, and I’m wondering what a more ‘permanent’ solution would be here. Behind the wall is a porch so access from the outside is not easy. Fixing the water drainage issues that caused this is top of my todo list, but I’m asking how to address the cracks.. The cracks go quite deep, and adding mortar is only getting in a few inches. I’ve done my share of concrete repairs in the past, built block walls, etc, so I’m not a total beginner, but as this thing has load on it its scaring me a bit.
Would using a concrete saw to cut out a ‘slice’ of the basement wall, adding rebar (pinned into both sides, and also going vertically), and repouring the concrete in a vertical section be an option (see photo, example of 2 ‘slices’ highlighted)? Ideally the slices would be small enough to not cause deformation of the rim joist during the process, and I would make efforts to add auxiliary supports to the beam and nearby floor joists.
FWIW, I’ve had 2 foundation pros come by and look at things, one said I needed helical piles and the other said he felt it was mostly cosmetic.