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.
Resources
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
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
CPR: Rebuilt to Last: Interstate 10, San Bernardino, CA
During the summer of 2010, the California Department of Transportation (Caltrans) programmed a section of I-10 in San Bernardino for rehabilitation. A pavement preservation method of surface repair, known as partial depth repair (PDR), was chosen to address the pavement deterioration. It was repaired using an environmentally-friendly fly-ash, CeraTech D.O.T. Lime rapid repair concrete. The overall success of the project resulted in improving ride quality and comfort, decreasing wear and tear, and extending the pavement's service life.
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Highway
Full & Partial Depth Repair
Structural/Material Issues