What should I use to get paint off of concrete
Sand blaster works best because of way concrete is textured. A wire brush and a paint remover. Wear safety glasses because a wire brush will throw residual back on you.
Sandblast or maybe use a paint stripper
Try mineral spirits.
A painters scraper big and small sized
Good pressure washer with a burner for hot water spraying...wil come right off
A pressure washer might work well. make sure it has higher pressure though
Just use a pressure washer. If it has stained the concrete that's when you need to pull out the chemicals and sandblasters.
Try sodium phosphate TSP
Use a grinding machine