If you’re looking for an affordable way to cut concrete or bitumen on the ground, consider concrete road sawing (also known as flat sawing). Road saws are great for a variety of projects, including roadwork, cutting concrete slabs and floors, and even driveways. These saws are typically powered by a powerful petrol or diesel engine (40-50hp) and can cut through materials quickly and efficiently, up to a depth of 400mm. These saws are usually around 600kg and at least 800mm wide.mm wide.