When pouring concrete in a large area, such as a driveway slab, the use of reinforcing mesh will help distribute tensile forces. After pouring, concrete must be cured. This means its surface temperature and humidity must be controlled so it can properly set. For three or more days after it is poured, concrete should be kept damp by wetting it with a hose. Direct sunlight should be avoided; cover the concrete if necessary.
Even when these steps are followed, cracking cannot be completely eliminated – it must be controlled. Cutting joints into the concrete’s surface every four to six feet using a tool known as a 'groover' will give potential cracks a path to follow, ensuring that they do not mar the concrete’s finished surface.