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What Is Concrete Slab Curling?
Concrete slab curling is the upward or downward deformation of a concrete slab caused mainly by differences in moisture content and temperature between its top and bottom surfaces.
The top and bottom portions of a concrete slab do not always dry or change temperature at the same rate. These differences create internal stresses and differential volume changes.
When the top surface loses moisture faster than the bottom, the upper portion tends to shrink more. This can cause the slab edges or corners to curl upward.
