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: Built to Last: Provincial Trunk Highway #9, Selkirk, Manitoba, Canada
Full depth repair (FDR), partial depth repair (PDR) and diamond grinding were used to repair Provincial Trunk Highway 9 in Selkirk, Manitoba, Canada. The 32-year-old concrete pavement required rehabilitation on a two-mile section, due to transverse joint deterioration and uneven wear of the existing seal coat causing a rough ride.
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Highway
Concrete Pavement Preservation and Restoration, Diamond Grinding, Full & Partial Depth Repair
Smoothness
CPR: Rebuilt to Last: Infrastructure improvements in Jonesboro, AR
The surface of the Route 63 highway had become rough after carrying 40-plus years of significant passenger and commercial traffic. The Arkansas Highway Transportation Department (AHTD) opted to use patching and diamond grinding as well as joint sawing and joint resealing. The roadway now boasts a safer riding surface with a nearly 56% improvement in smoothness.
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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: Interstate 15, Ogden, UT
In 2013, the Utah Department of Transportation (UDOT) began concrete rehabilitation on a 15-mile stretch of Interstate 15 in Ogden, UT. Concrete Pavement Preservation (CPP) methods selected for the project included partial and full panel patching, slab jacking, resealing, dowel bar retrofit (DBR) and diamond grinding. UDOT provided a safe, smooth ride while reducing costs.
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Highway
Diamond Grinding, Dowel Bar Retrofit
Structural/Material Issues
CPR: Rebuilt to Last: US Route 52, Rivers Avenue, Charleston, SC
U.S. Route 52 in Charleston, SC, needed maintenance. Given the generally good structural condition of the pavement, a decision was made to rehabilitate the original concrete using a non-overlay solution. The project consisted of 8-inch full depth concrete patching, diamond grinding, joint cleaning and joint sealing, and asphalt median milling and resurfacing. The final product was an enormous improvement from previous conditions.
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City/Municipal
Concrete Pavement Preservation and Restoration, Diamond Grinding, Full & Partial Depth Repair, Joint and Crack Resealing
Structural/Material Issues
CPR: Rebuilt to Last: National Highway Route 60/MT200 in Great Falls, MT
The National Highway Route 60/MT200 is a four-lane highway located in Great Falls, MT that connects several small towns in central and eastern areas of the state. The project to make the roadway smooth and safe for drivers involved repairing approximately 12 lane mines of nine-inch Portland Cement Concrete (PCC). Methods included dowel bar retrofit, full depth repair, partial depth repair, diamond grinding and resealing. The project proved to be a cost-effective solution.
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Highway
Concrete Pavement Preservation and Restoration, Diamond Grinding, Dowel Bar Retrofit, Full & Partial Depth Repair, Joint and Crack Resealing
Structural/Material Issues, Sustainability/Environmental
CPR: Rebuilt to Last: Minnesota Department of Transportation utilizes full CPR toolbox and diamond grinding
Concrete Pavement Restoration (CPR) techniques were applied on I-94 between Stearns County State Aid Highway 75 and Trunk Highway 241. The project involved diamond grinding, full depth repair (FDR) and partial depth repair (PDR), joint resealing, crack resealing, and the introduction of Next Generation Concrete Surface (NGCS) to enhance ride quality and reduce noise.
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Highway
Concrete Pavement Preservation and Restoration, Diamond Grinding, Full & Partial Depth Repair, Joint and Crack Resealing
Smoothness, Structural/Material Issues, Sustainability/Environmental