A concrete saw (also known as a consaw, road saw, cut-off saw, slab saw or quick cut) is a power tool used for cutting concrete, masonry, brick, asphalt, tile, and other solid materials. There are many types ranging from small hand-held saws, chop-saw models, and big walk-behind saws or other styles, and it may be powered by gasoline, hydraulic or pneumatic pressure, or an electric motor. The saw blades used on concrete saws are often diamond and saw blades to cut concrete, asphalt, stone, etc. For slabs, it's best to cut through the top inch, then use a sledgehammer to break off the rest. The jagged edge left below the cutting line provides a good rough edge for the new concrete to bond to.
Making the perfect Blade choice for the Concrete Saw
- The match between the diamond saw blade's features and the concrete/asphalt's type. For example, some concretes have steel bars in them (reinforced concrete) and some do not have.
- Wet or dry cutting. Though diamond saw blades for concrete are usually laser welded, they are normally designed for wet cutting because the concrete to be cut is often very hard or abrasive.
- Whether faster cutting or longer lifespan is needed. The basic cutting speed of the diamond saw blades should be first determined. On this basis, a blade which has a faster cutting speed or a longer lifespan can be selected.
- The power output of the concrete saw. If the concrete saw has a high power output, the diamonds on the saw blade will receive a higher impact when cutting is performed. In this case, the diamond concentration of the diamond saw blade should be higher, or its bond should be harder.