Slab Curl Repair
Slab curl repair is a type of Void Grouting. Slab curl occurs when the top and bottom surfaces of concrete slabs cure differently, causing the slabs to flex and cure in a concave shape at the control joints. This “curling” results in uneven slab contact with the underlying soil or base material, ultimately leading to deterioration and cracking of the slab under everyday service loading. The grouting process for slab curl repair involves coring a series of localized holes along the control joints and pumping grout to fill the void below the curled portion of the slab. After the grouting process is complete, owners sometimes choose to grind down the curled portion of the slab to restore an even floor surface.