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Concrete slabs-on-ground develop curl when a moisture or temperature gradient exists between the top and bottom surfaces of the slab. As the exposed top surface dries and shrinks relative to the wetter bottom, the slab edges tend to lift upward, creating a concave-up deformation. In climate-controlled facilities, the dominant driver is differential drying shrinkage, which produces a permanent upward curl at the slab edges and corners.
Concrete slabs-on-ground develop curl when a moisture or temperature gradient exists between the top and bottom surfaces of the slab. As the exposed top surface dries and shrinks relative to the wetter bottom, the slab edges tend to lift upward, creating a concave-up deformation. In climate-controlled facilities, the dominant driver is differential drying shrinkage, which produces a permanent upward curl at the slab edges and corners.
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