Concrete is a versatile and widely used material because it is relatively inexpensive and durable. In many most cases, a layer of concrete is applied to the basement of a home to act as the floor. Because the ground is constantly moving beneath the foundation of the home, the concrete surface may crack. While this is not a problem structurally, the cracks do look unappealing. You can, however, seal the cracks easily and effectively with a concrete sealant.
Cut the tip of the concrete repair caulk tube at a 45-degree angle with the utility knife.
Insert the tube into the caulking gun and squeeze the trigger until a small amount of caulk reaches the tip of the tube.
Insert the tip of the caulk into the floor cracks and apply a thick bead of caulk along the length of the cracks.
Smooth over the repair caulk on the surface of the concrete with a putty knife. Allow the caulk repairs to dry fully for 24 hours before using the surface.