![]() Slab settlement is the downward movement of a concrete slab due to soil subsidence, which occurs when the soil supporting it can no longer bear its weight. When concrete dries improperly smaller cracks will often occur and the slab is prone to further damage as it ages. Slabs that are poured too thin may experience rapid drying which inhibits the proper curing process and weakens the concrete. Concrete not thick enoughĪ concrete floor or slab must be poured to the correct thickness according to the design of a certified engineer. Low-quality concrete will often form drying shrinkage cracks as the concrete cures. Excess water or the wrong ratio of concrete to aggregate can significantly affect the quality of the concrete mix. Poor-quality concrete is also characterized by lower tensile strengths than high-quality concrete, which means that these structures give in to the pressure exerted on them at relatively low amounts of stress. Inferior concrete is known to have a shorter life span, and it may present with visible cracks on its surface. The quality of concrete depends on the quality of the materials that go into it. Common Causes of Slab Cracks Poor concrete mix ![]()
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