Severely Cracked Slabs
If you have severely cracked slabs, you need to perform:
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Full-Depth Repairs
Full-depth repair is the removal and replacement of full slab thickness sections of deteriorated pavement. Length can vary based on conditions present. A common minimum patch size is four to six feet long and a full lane width wide. This type of repair can be completed on both jointed and continuously reinforced concrete pavement. On jointed pavement, the transverse construction joints at the patch ends are typically doweled and/or tied to restore load transfer across the joints. Additionally, on longer patch sections, dowel bar assemblies are placed at intervals to coincide with the existing transverse joint pattern present. On continuously reinforced concrete, the reinforcing steel pattern of the existing pavement is removed and replaced with new steel within the repair section. The transverse repair boundaries are first sawed and jackhammered to expose approximately two feet (typical) of the existing steel to facilitate the tying of the new reinforcement bars to the steel pattern in the existing pavement.
Resources
Concrete Pavement Preservation (CPP) Slashed Repair Costs
The city of Baytown, Texas lowered the expected repair costs by 80% with concrete pavement preservation (CPP). CCP techniques are less invasive, low-cost alternatives to full concrete replacements. The city replaced approximately 20 percent of the road surface with CCP work including full-depth panel replacement, dowel bar retrofit, cross stitching, replacement and resetting of manholes, diamond grinding, and crack repair and sealing.
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City/Municipal, Highway, Industrial
Concrete Pavement Preservation and Restoration
Structural/Material Issues
Concrete Pavement Preservation (CPP) Built To Last
In 2020, Oklahoma's concrete pavements were due to begin a maintenance cycle, and by the end of that year, concrete pavement preservation (CPP) consisting of selected panel replacements, dowel bar retrofit (DBR) and diamond grinding had been completed on portions of the Cimarron, Bailey and Indian Nation Turnpikes. CPP allows for seven times the length of roadway repaired for every dollar spent.
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Highway
Concrete Pavement Preservation and Restoration, Diamond Grinding, Dowel Bar Retrofit
Structural/Material Issues
CPR: Rebuilt to last: US Route 33, Appalachian Corridor H, Barbour, Upshur and Randolph Counties, WV
A 21-year-old 4.20-mile section of U.S. Route 33 in Upshur County, WV, exhibited distressed areas in need of repair. Full depth repair, partial depth repair, and diamond grinding techniques were chosen for the project. Compared to more traditional methods, the WVDOH feels that the application of these techniques is an effective combination of treatments to treat a significant portion of this corridor and provide long-term performance at a relatively low cost.
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Highway
Concrete Pavement Preservation and Restoration, Diamond Grinding, Full & Partial Depth Repair, Joint and Crack Resealing
Structural/Material Issues
CPR: Rebuilt to Last: Highway 21 repairs Newark, NJ
When the New Jersey Department of Transportation (NJDOT) set out to repair Highway 21 on the north side of Newark, they sought a cost-effective solution that would result in a safe, smooth ride. Recognizing that the existing pavement was structurally sound, NJDOT removed the asphalt overlay and performed diamond grinding on the underlying concrete pavement. The techniques used to complete the project included asphalt milling, cat basin reconstruction, slab stabilization, pre-cast panel replacement, partial depth repair, joint resealing and diamond grinding for the final ride and surface texture.
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Highway
Concrete Pavement Preservation and Restoration, Diamond Grinding, Full & Partial Depth Repair, Joint and Crack Resealing, Slab Stabilization
Structural/Material Issues
CPR: Rebuilt to Last: Roosevelt Roads Naval Base runway repairs, Ceiba, Puerto Rico
In 2001, the U.S. Navy sought to repair the 11,000-foot runway that served the Navy's Atlantic air fleet. The project employed partial depth repair, full depth repair, sawing, stripping, and joint resealing. The result for the naval base was a quality runway that will provide safe, economical service for many years into the future.
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Airport/Airfield
Full & Partial Depth Repair, Joint and Crack Resealing
Friction/Safety
CPR: Rebuilt to Last: Interstate 29 southbound between Highway 200A and Highway 200, Hillsboro, ND
Interstate 29 Southbound in Hillsboro, North Dakota, saw significant improvements in the International Roughness Index (IRI) through various concrete pavement restoration (CPR) techniques. Key components included diamond grinding, dowel bar retrofit (DBR), full depth repair (FDR), partial depth repair (PDR), and joint resealing. Conducted primarily to restore load transfer and enhance skid resistance, the CPR methods targeted only the most deteriorated sections, demonstrating cost-effectiveness and flexibility.
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Highway
Diamond Grinding, Dowel Bar Retrofit, Full & Partial Depth Repair, Joint and Crack Resealing
Smoothness, Structural/Material Issues