Full-depth repair is a concrete pavement rehabilitation technique that is utilized to restore the structural integrity and rideability to distressed concrete pavement. It involves completing lane-width, full-depth saw cuts to remove the deteriorated concrete down to the base, repairing the disturbed base, installing load-transfer devices, and refilling the excavated area with new concrete. It is an effective, permanent treatment to repair pavement distresses, particularly those that occur at or near joints and cracks. By removing and replacing isolated areas of deterioration, full-depth repairs may delay or stop further deterioration and restore the pavement close to its original condition. The distresses that can be addressed using full-depth repairs include transverse cracking, corner breaks, longitudinal cracking, deteriorated joints, D-Cracking, blowups, and punchouts.
Source: United States Department of Transportation, Federal Highway Administration. Retrieved from http://www.fhwa.dot.gov/pavement/concrete/full.cfm
Partial-depth repair involves removing an area of deteriorated concrete that is limited to the top one-third of the slab thickness and replacing it with appropriate repair materials. Depending on the type of repair material used and the repair location, a new joint sealant system may be placed as well. The repair technique can be applied either transversely or longitudinally on the pavement where deteriorations are detected.
Source: United States Department of Transportation, Federal Highway Administration. Retrieved from http://www.fhwa.dot.gov/pavement/concrete/repair.cfm
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