how to grind concrete with angle grinder in 2021 the
Sep 24, 2021 Or get a concrete saw and cut some kerfs, chisel out with an air hammer, then grind it flat. Depending on how the door is used, if any water is put on the concrete on the inside, it would have trouble getting out when a speed bump is added. Jul 22, 2009 07-21-2009, 1124 AM. Re Sacking a concrete wall. I wouldnt strip a wall thats still soft enough to rub up. Theyre pretty fragile. Unlike a stair or a curb leverage on a wall greater so its easier to get cracks or worse. You dont usually start finishing walls until a at least a week or 2 after their poured.