Typically speaking, a crack in the basement floor isn't going to pose threats to the structural integrity of the home. However, leaving them untouched could be the difference between having a dry and healthy basement or having one that is constantly flooded whenever it rains.
This problem is often caused from the natural shrinking and curing process of concrete. Additionally, it could be caused from a rising and falling water table outside of the home during the wet seasons of the year, such as spring and fall. The pressure from the rising and falling can push up on the floor, eventually causing it to crack in weakened areas.
To take care of the problem, St. Louis Basement Pros can make use of epoxy materials. The process will begin with the surface being thoroughly cleaned off so that no dirt or debris gets inside during the repair. Next, the epoxy will be injected into the opening, and it will fill it up from the earth to the surface. The material will cure and harden quickly, thus preventing any additional seepage from the soil getting inside.