Spalled Joints & Cracks
If you have spalled joints and cracks, you need to perform:
Partial Depth Patch Repairs
Partial depth repair (PDR) is a shallow depth repair procedure used to address pavement deterioration that does not fully extend through a concrete slab. This method is used to repair spalling and fraying of concrete slab edges at joints and cracks as well as localized scaling. Spalling, which can occur on both jointed and continuously reinforced pavements, reduces pavement serviceability and can become hazardous to highway users. This type of deterioration can be caused by a number of factors including late sawing, poor joint design, inadequate joint/crack maintenance and material durability issues such as Alkali-Silica Reactivity (ASR). Once initiated, spalls tend to grow under repeated thermal stresses and traffic loadings.
The purpose of PDR is to repair surface defects, reestablish joint reservoirs and restore localized areas of deterioration. PDR replaces unsound concrete to restore rideability and discourages further deterioration. Further, PDR is an excellent preventative maintenance technique as it is proven to last more than 20 years when properly constructed using quality materials and workmanship.
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Partial Depth Repair (PDR): Partial depth repair addresses damaged areas in concrete pavement
Partial depth repair (PDR) is a shallow depth repair procedure used to address pavement deterioration that does not fully extend through a concrete slab. By replacing unsound concrete, PDR can repair spalling and fraying of concrete slab edges at joints and cracks as well as localized scaling. PDR provides several benefits including repair of surface defects, reestablishing joint reservoirs, restoring localized areas of deterioration, restoring rideability and discouraging further deterioration.
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Fact Sheet
Airport/Airfield, Bridge, City/Municipal, Highway, Industrial, Race Track
Full & Partial Depth Repair
Structural/Material Issues
Partial Depth Repair (PDR): Partial depth repair restores rideability, alleviates further deterioration
Partial depth repair (PDR) is a vital tool in the Concrete Pavement Preservation (CPP) Toolbox. PDR is a shallow depth repair procedure used to address pavement deterioration that does not fully extend through a concrete slab. Benefits are that its fast, long-lasting, durable, smooth, cost-effective, flexible and maintains existing elements.
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Fact Sheet
Airport/Airfield, Bridge, City/Municipal, Highway, Industrial, Race Track
Full & Partial Depth Repair
Structural/Material Issues
CPR: Rebuilt to Last: Pavement rehabilitation in Jamestown, MD
U.S. Highway 281 in Jamestown, North Dakota, underwent concrete pavement rehabilitation methods to extend pavement life and minimize disruptions. Full and partial depth repair, joint resealing and diamond grinding were implemented to restore structural integrity and performance. These measures ensured cost savings, extended pavement life by 15 to 20 years, and minimized disruptions to local traffic and businesses. The project, completed two months ahead of schedule, demonstrated the benefits of targeted pavement preservation techniques.
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Case Study
City/Municipal, Highway
Concrete Pavement Preservation and Restoration, Diamond Grinding, Dowel Bar Retrofit
Smoothness, Structural/Material Issues
CPR: Rebuilt to Last: White Bear Lake Highway 61 CPR repairs last 22 years
US Highway 61 travels through White Bear Lake, MN. In 1987, it required full depth repair and partial depth repair, diamond grinding, re-saw and seal with silicone in the transverse joints and hot pour sealant in the longitudinal joints. The Concrete Pavement Restoration (CPR) methods performed more than two decades ago are still in good condition, lasting longer than originally predicted.
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Highway
Diamond Grinding, Full & Partial Depth Repair, Joint and Crack Resealing
Structural/Material Issues
CPP: Rebuilt to Last: Diamond Grinding and Patching Restore U.S. 67 in Arkansas
Concrete pavements last 40+ years; treatment with CPP restores rideability. A 120-mile-long stretch of U.S. 67 connects North Little Rock, AK to Walnut Ridge, AK. Concrete pavement preservation (CPP) was deemed appropriate for rehabilitating the highway using diamond grinding. After patching and grinding, there was about an 80% improvement in smoothness.
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Case Study
Highway
Concrete Pavement Preservation and Restoration, Diamond Grinding, Full & Partial Depth Repair
Structural/Material Issues
CPR: Rebuilt to Last: A progressive concrete pavement preservation strategy improves city streets in Minneapolis
City streets in Minneapolis benefited from the implementation of concrete pavement preservation (CPP) techniques. The strategy focused on rehabilitating structurally sound residential streets using methods such as diamond grinding, dowel bar retrofit (DBR), full depth repair (FDR), partial depth repair (PDR), cross/slot stitching, joint resealing, and crack resealing. This approach was chosen for its sustainability and cost-effectiveness, enhancing road safety and extending pavement lifespan by up to 25 years.
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Case Study
City/Municipal
Concrete Pavement Preservation and Restoration
Sustainability/Environmental