My old bathroom floor was a mess. It was a concrete slab and tiled over, in the 70's someone did a bad remodeling job and broke up a large section of the floor to fix the plumbing. They did a poor job of filling the hole with concrete and when I got the house the floor was cracked and rocked under your feet. So I redid the section that was bad, but my mason skills are not the best and the floor is a little uneven. I want to even out the floor but don't want to pour more concrete for a skim coat. Is there something I can pour that will harden and self level itself?
I would recommend a self leveling concrete type product. On a quick search I found this one but there are other manufactures and you should be able to find a similar product in whatever area you are in.