Concrete, as you likely already know, is one of the most versatile, cost-effective, and durable building materials currently available. Yet even concrete has its structural limits. Cracks are one of the most common ways that concrete starts to fail. They may be caused by a wide variety of things, from poor installation, to environmental stress, to simple age.
The good new is that, when faced with a home whose concrete floor or foundation has developed worrisome cracks, replacement is not your only option.