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Asked by: Kornelia Holderlin
business and finance construction industryWhat causes concrete to lift?
If the ground slopes toward a slab, water runoff can easily penetrate into the soil underneath. Excess moisture in the soil creates instability, leading to sinking concrete. Improper grading is frequently a factor for properties in need of concrete repair.
Accordingly, why is my concrete sinking?
A common place you see sunken concrete is around the perimeter of your foundation. Another cause for sinking concrete is water intrusion. Water that is constantly intruding below the slab will overtime erode or wash away the soil or stone base.
Correspondingly, how do you lift settled concrete?
Mud Jacking is a common term for lifting sunken or settled concrete. Mud jacking can lift a settled concrete slab by pumping a grout through the concrete and pushing it up from below. The process is sometimes called “slab jacking” or “pressure grouting”.
The number one reason concrete rises in the winter is because there is moisture under the concrete before the ground freezes. When the saturated ground under the slab freezes it expands, raising the concrete.