How to patch a vertical concrete surface?
My house is built on a slab and the slab settled. Had the slab raised and supported so the issue is corrected. When the slab settled two corners of the slab broke off. The break is about 2 inch deep at the top tapering down to the original slab at approximately ground level. The break off is confined to the corner of the slab so itÃ¯Â¿Â½s a small area. What is the correct way to repair the corner, with mortar, use a concrete bonding agent, etc?