Preserving Old Pavements
Diamond Grinding

Diamond Grinding
Restore/Improve Ride Quality
Diamond grinding helps restore a uniform surface and improve pavement ride quality.
Produce Quieter Ride
The corduroy texture from diamond grinding produces lower tire-pavement noise levels than most other textures.
Improve Surface Friction
Diamond grinding is primarily conducted to restore or improve ride quality, but it also improves skid resistance.
Concrete Grooving

Concrete Grooving
Improves Safety
Grooving helps channel water under vehicle tires to reduce hydroplaning, providing a safer driving environment in wet weather.
Address High-Accident Locations
Grooving allows agencies to quickly address locations they determine are areas with a higher number of skidding incidents.
Grooving is Economical
Grooving is inexpensive and costs significantly less than asphalt overlays.
Next Generation Concrete Surfaces

Next Generation Concrete Surface (NGCS)
Smoother Ride
The innovative texture provides for a smoother, more uniform ride.
Increased Safety
NGCS provides increased macro-texture, creating a safer road in wet weather conditions.
Decreased Noise
Tests have shown a decrease in tire/pavement noise by 75%.
Full and Partial Depth Patching

Full and Partial Depth Patching
Economical
Patching targets only the areas in need of repair.
Traffic Friendly
New fast setting proprietary products are now available that gain full strength in a matter of hours.
Selection and Timing = Success
The condition of the pavement being repaired is an important consideration to get the best from full- or partial-depth patches.
Dowel Bar Retrofit

Dowel Bar Retrofit (DBR)
DBR Improves Performance
Restoration of load transfer by installing dowel bars enhances pavement performance.
DBR Strengthens Transverse Joints/Cracks
Introducing new dowels to an existing pavement at transverse joints or cracks strengthens the pavement structure.
Proper Application is Critical
DBR is not for every preservation project. It is important to run through a DBR checklist to ensure desired performance can be achieved.
Cross Stitching

Cross and Slot Stitching
Solution for Shoulder Separation
Cross stitching is used for tying road lanes or shoulders that are separating and causing a maintenance problem.
Slot Stitching Similar to DBR
Slot stitching is a preservation repair technique for longitudinal cracks and joints that grew out of the DBR technique.
Keeping Joints/Cracks Tight
Cross-stitching strengthens longitudinal joints/cracks in slabs to prevent slab migration and to maintain aggregate interlock.
Joint Resealing

Joint Resealing
Maintains Structural Integrity
Well maintained joint seals can minimize water intrusion and subgrade softening.
Preserves Ride Quality
Potential for Pavement blowups and joint spalling are minimized.
Reduction of Noise Levels
Properly sealed joints minimize noise created by wheel-slap and air pumping.
Slab Stabilization

Slab Stabilization
Restores Structural Integrity
The material restores support to the pavement and mitigates further water infiltration damage.
Preserves Ride Quality
Provides both short- and long-term reductions in pavement deflection.
Economical
Stabilizing a slab is less expensive than full depth repair.
In-Place Recycled Base (FDR)

In Place Recycled Base (FDR)
Cement Strengthens Base
FDR with cement increases the structural capacity of the new roadway by providing a stronger and more consistent base.
FDR Promotes Sustainability
Recycling in place lowers the carbon footprint, and reduces the need for additional resources.
FDR Reduces Deflections
FDR outperforms an unstabilized granular base, the stiffer base reduces deflections due to traffic loads, resulting in lower strains on the pavement surface.