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
CPR: Rebuilt to Last: Concrete patching and maintenance for I-44 in Oklahoma City, OK
On I-44 in Oklahoma City, Oklahoma, extensive Concrete Pavement Restoration (CPR) measures, including diamond grinding, dowel bar retrofit (DBR), full depth repair (FDR) and joint resealing were applied to address transverse joint faulting and improve pavement conditions. Despite challenges such as limited work windows and high traffic volumes, the project was completed successfully in 2005, resulting in significant improvements in pavement service life and ride quality.
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Highway
Diamond Grinding, Dowel Bar Retrofit
Smoothness
CPR: Rebuilt to Last: I-94 repair from upper Midwest to upper Northwest, Douglas and Grant Counties, MN
I-94 from the Upper Midwest to Upper Northwest experienced improved ride quality and extended pavement lifespan through Concrete Pavement Restoration (CPR) methods. The project utilized several techniques, including diamond grinding, dowel bar retrofit (DBR), full depth repair (FDR), partial depth repair (PDR), joint resealing, and crack resealing. The project successfully improved ride quality and extended the pavement's lifespan by more than 15 years, demonstrating the flexibility and economic advantages of CPR.
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Highway
Concrete Pavement Preservation and Restoration, Diamond Grooving
Structural/Material Issues
CPR: Rebuilt to Last: Concrete Patching and Maintenance for I-84 in Box Elder County, UT
The Utah Department of Transportation (UDOT) carefully considered a variety of options to repair the 20-year-old concrete pavement on I-84 in Box Elder, UT. The methods selected included dowel bar retrofit (DBR), diamond grinding, full depth repair, partial depth repair, slab jacking and joint resealing. This newly rehabilitated highway will provide a safe, smooth and durable surface for many years to come.
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Highway
Concrete Pavement Preservation and Restoration, Diamond Grinding, Dowel Bar Retrofit, Full & Partial Depth Repair, Joint and Crack Resealing, Slab Stabilization
Smoothness, Structural/Material Issues