Settlement Cracks In Garage Floor

Another reason for crack is bowing of floor due to improper sub slab prep.

Settlement cracks in garage floor.

A little bit of settlement is normal over the years but it can put pressure on garage floors and result in cracks. Settlement cracks occur when the soil beneath the flooring shifts. Settlement cracks are generally more serious than shrinkage cracks. New homes cracks that occur in the first few months or years.

When a garage floor is first poured the concrete begins to harden contractors say cure and when this process takes place the concrete shrinks a little. This drying causes the cement to shrink pulling apart each pour until a crack develops. A 20 foot square of freshly poured concrete will shrink about a 1 8 of an inch in each direction. Why settlement cracks occur on a garage floor.

How to determine if the cracks in walls are serious. Ultimately severity depends on crack width and if it continues to grow or not. A poorly installed floor base will increase the likelihood of settlement crack issues. Garage or basement floor settlement may also produce a tipped floor even if the concrete is not cracked or the floor may settle uniformly.

Meaning some areas were not properly compacted. Carson dunlop associates sketch shows how loose soil and gravel under a garage floor can combine with poor drainage to lead to serious slab settlement and a broken slab where no reinforcement was used in.