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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

FHWA Checklist - Full Depth Repair

Pavement Preservation Checklist Series

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Technical Info

Airport/Airfield, Bridge, City/Municipal, Highway, Industrial, Race Track

Full & Partial Depth Repair

Structural/Material Issues

Full Depth Repair

MoDOT Tech Brief

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Airport/Airfield, Bridge, City/Municipal, Highway, Industrial

Full & Partial Depth Repair

Structural/Material Issues

Highway Concrete Pavement Technology Development and Testing

Field Evaluation of Strategic Highway Research Program C-206 Test Sites (Early opening of full depth pavement repairs)

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City/Municipal, Highway

Full & Partial Depth Repair

Structural/Material Issues

FHWA Tech Brief - Precast Concrete Panels for Rapid Full Depth Repair of CRC Pavement

To maintain continuity of longitudinal reinforcement

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Highway

Full & Partial Depth Repair

Structural/Material Issues

Concrete Repair Best Practices

MoDOT Report: A Series of Case Studies

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City/Municipal, Highway

Concrete Pavement Preservation and Restoration, Diamond Grinding, Dowel Bar Retrofit, Full & Partial Depth Repair, Joint and Crack Resealing

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Jointed Full Depth Repair of Continuously Reinforced Concrete Pavements

FHWA ACPT Products Program Tech Brief

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Highway

Full & Partial Depth Repair

Structural/Material Issues

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