Due to a wall form blowout on a poured wall foundation, one section of the wall about 4 feet long has a 2 1/2-inch bow. Is there a faster way of removing the bow than grinding it down?
Try sawing vertical slots about 1/2 to 1 inch apart in the bow. Vary the slot depth, making it deepest in the fat part of the bow and tapering down to shallower cuts near the edges. Then use a chisel or a small chipping hammer to remove the concrete. Making some horizontal cuts may speed the process. Then patch the surface with a concrete patching mortar.