Fewer preventive maintenance options are available for rigid pavements. Generally, joint seals and crack seals are the options for jointed concrete pavement. Joints should be inspected routinely and should be maintained to exclude foreign material to preserve the integrity of the joint. Voids under the pavement can be filled with a grout material. For rapidly deteriorating continuously reinforced concrete pavement, the slab failure should be repaired and a thin overlay may be applied.