Concrete slab sinking and cracking happens when the soil below the slab can no longer support the weight of it. The causes movement, and sinking and cracking can occur. Concrete that is cracked or out of level won’t fix itself, and over time the additional damages become more serious and costly.
Settling concrete slabs in your basement and around your home can also crack tile or pose a hump in the carpet. It becomes obvious that the concrete slab has settled and not in the original place anyone where you see a definite “hump” along the interior foundation wall.
In some cases, when the concrete slabs are uneven it could put your furniture off level. Shims are often needed to level the furniture but it is the concrete slab that needs to be addressed for a permanent solution.
When concrete slabs settle, they pose more than cosmetic problems. Once it is cracked or sinking, the problem will continue to progress. Over time this causes safety concerns, lets water in and can even cause structural damage to other parts of your home.
It is the soil underneath the concrete slab that has caused the settlement. The soil has failed to support the concrete for one of these reason: drying and shrinking soils, wetting and softening of soil, poorly compacted fill soil.