

Slab Warping or Unevenness
If you have slab warping or unevenness, you need to perform:
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Conventional Diamond Grinding (CDG)
Conventional diamond grinding (CDG) is often used to create the smoothest and safest pavements available today. It is
appropriate for both new construction and existing pavement and can be performed at any time during a pavement’s life.
Diamond grinding removes a thin layer of the hardened concrete surface using a self-propelled machine outfitted with a series of closely spaced diamond saw blades mounted on a rotating shaft. Unlike diamond-impregnated carbide bits, which use impact to chip away the concrete surface, CDG blades use abrasion to gently remove the surface layer without the risk of introducing microcracking of the aggregates. After diamond grinding, the pavement texture consists of grooves and lands, with the grooves lying beneath the pavement interface.
CDG has been in use since the 1960s, with nearly 20 million square yards of pavement diamond ground each year in the United States alone. In addition to using CDG to improve the performance of existing, in-service pavements, several state Departments of Transportation specify diamond ground surfaces as the final surface on newly placed portland cement concrete pavement (PCCP).
Next Generation Concrete Surface (NGCS)
Next Generation Concrete Surface (NGCS) is the quietest non-porous concrete pavement surface available. NGCS is a hybrid texture that resembles a combination of diamond grinding and longitudinal grooving. It consists of a uniform land profile design with essentially an all-negative texture. Despite its flatter, smoother riding surface compared to traditional portland cement concrete pavement (PCCP), the NGCS still possesses and maintains reliable microtexture (friction) when constructed with quality aggregates. The longitudinal grooves provide substantial macrotexure and increase resistance to hydroplaning by providing escape channels that allow water to move out of the tire contact patch area.
Resources
Does Diamond Grinding Affect the Structural Capacity and Service Life of Concrete Pavements?
Diamond grinding of concrete pavements actually increases the performance and service life of concrete pavements
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Technical Info
Airport/Airfield, Bridge, City/Municipal, Highway, Industrial, Race Track
Diamond Grinding
Structural/Material Issues
The Longevity and Performance of Diamond Ground Pavements
The results of this study show that CPR with diamond grinding is an effective means of extending service life of concrete pavements
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Technical Info
City/Municipal, Highway
Diamond Grinding
Friction/Safety, Smoothness, Structural/Material Issues
Concrete Repair Best Practices
MoDOT Report: A Series of Case Studies
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Technical Info
City/Municipal, Highway
Concrete Pavement Preservation and Restoration, Diamond Grinding, Dowel Bar Retrofit, Full & Partial Depth Repair, Joint and Crack Resealing
Structural/Material Issues


