Severely Cracked Slabs
If you have severely cracked slabs, you need to perform:
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
Highway Concrete Pavement Technology Development and Testing
The objective of this study was to monitor and evaluate the performance of experimental full-depth repairs (FDR) made with high early-strength (HES) materials placed under Strategic Highway Research Program (SHRP) project C-206, Optimization of Highway Concrete Technology. The C-206 full-depth repair experiment was conducted to demonstrate and validate the technologies that allow early opening of full-depth portland cement concrete (PCC) pavement repairs to traffic and to document the information needed to apply this technology.
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Technical Info
City/Municipal, Highway
Full & Partial Depth Repair
Structural/Material Issues
Calcium Sulfoaluminate (CSA) Cement
Calcium Sulfoaluminate (CSA) cement is an advanced cementitious material known for its fast setting, high early strength, low shrinkage, long-term durability and low carbon footprint. CSA is increasingly recognized as a vital component in modern construction due to its significant benefits that align with the industry’s evolving goals of sustainability, efficiency and innovation. CSA cement aligns with the construction industry’s goals by offering a sustainable alternative that meets the demands for efficiency and high performance. Its unique properties enable innovative applications in areas such as rapid repair, pushing the boundaries of traditional construction methods.
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Fact Sheet
Airport/Airfield, Bridge, City/Municipal, Highway, Industrial, Race Track
Concrete Pavement Preservation and Restoration, Dowel Bar Retrofit, Full & Partial Depth Repair
Structural/Material Issues, Sustainability/Environmental
Diamond Grinding: A Safe, Sustainable, Quiet and Cost-Effective Solution to Better Roadways
This white paper presents several case studies demonstrating the benefits of diamond grinding for maintaining and improving roadway conditions in Arkansas, California, Kentucky, and Phoenix. The importance of managing slurry/concrete grinding residue (CGR) for environmental compliance is also emphasized throughout the various case studies.
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City/Municipal, Highway, Bridge, Airport/Airfield
Diamond Grinding, Next Generation Concrete Surface (NGCS)
Smoothness, Friction/Safety, Tire/Pavement Noise, Hydroplaning
FHWA Pavement Preservation Checklist Series: Full Depth Repair
This checklist for full-depth repair of portland cement concrete is one in a series created to guide state and local highway preservation/maintenance and inspection staff on the use of innovative pavement preservation techniques. FHWA uses its partnerships with different pavement preservation organizations including American Association of State Highway and Transportation Officials, and state and local transportation agencies to promote pavement preservation.
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Technical Info
Airport/Airfield, Bridge, City/Municipal, Highway, Industrial, Race Track
Full & Partial Depth Repair
Structural/Material Issues
Minnesota State Aid Concrete Pavement Rehabilitation Best Practices Manual
This manual has been developed, with permission, from information published by the Minnesota Department of Transportation (MnDOT) and the American Concrete Pavement Association’s Concrete Pavement Repair Manual, which was printed in May 2003. It includes joint repair, partial-depth repair (PDR), full-depth repair (FDR) and dowel bar retrofit (DBR).
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Bridge, City/Municipal, Highway
Concrete Pavement Preservation and Restoration
Structural/Material Issues
FHWA Tech Brief - Precast Concrete Panels for Rapid Full Depth Repair of CRC Pavement
This FHWA Tech Brief describes a recently implemented method for rapid overnight full-depth repairs (FDR) of continuously reinforced concrete (CRC) pavements using precast concrete panels. CRC pavements contain continuous longitudinal steel reinforcement with no transverse contraction or expansion joints, except as required at end-of-day construction, at bridge approaches, and at transitions to other pavement types or structures.
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Highway
Full & Partial Depth Repair
Structural/Material Issues