Restoring and Patching The ACPA Pavement Restoration Division serves as a national resource for information about concrete pavement restoration techniques and developments. Throughout the year, ACPA staff, chapter/states, and others in the industry present seminars, and committee meetings on topics that include the many phases of concrete pavement rehabilitation, or CPR3. ACPA staff and chapter/states also participate in road-conditions surveys, van trips, and project visits. ACPA has a number of technical and information resources on pavement restoration tips and techniques. There are a large number of concrete pavement products or applications for rehabilitating concrete or asphalt pavements.Typically, for old concrete pavement, the first rehabilitation work includes one or more of eight techniques in CPR (Concrete Pavement Restoration). CPR refers to a series of repair techniques used to bring the structural capacity or rideability of a deteriorating concrete pavement to an acceptable condition. CPR techniques each have a unique purpose to repair or replace a particular distress (kind of deterioration) found in concrete pavement, or to prevent or slow further deterioration. The seven most common CPR techniques are: Slab stabilization Full-depth repair Partial-depth repair Retrofitting dowels Cross-stitching longitudinally-oriented cracks or longitudinal joints Diamond grinding Joint & crack resealing Only one technique may be necessary for pavements with minor deterioration, but all of them may be needed where deterioration is more serious. Choosing what techniques to use depends on what distresses are present in the pavement. For CPR to be most effective, proper engineering, construction and timing are critical.