Some states have pursued concrete pavement repair techniques for quite some time and consider all of these methods as part of their arsenal before they contemplate replacement of a road. Georgia, Minnesota, North Dakota and Kansas have decades-old concrete pavement repair programs in place. This proven performance has sparked interest across the nation as well as internationally.
Repairs win over replacement
Cook County, Illinois recently received a Government/Public Agency of the Year Award for use of CPP repair techniques on the streets in the city of Glen Ellyn, Ill. The repairs spanned approximately 29 city blocks on two main roads, both of which were 15 to 20 years old. The original pavement was constructed as an 8-inch, doweled jointed pavement that eventually developed 14-inch to 12-inch faulted transverse joints with deteriorating joint seals. The methods used to repair the road included full-depth repair, diamond grinding, and sawing and sealing of joints utilizing backer rod and silicone sealant. The project totaled 185,000 lineal feet of joint rehabilitation on both streets.
The Glen Ellyn Public Works Department chose CPP because the long-term result proved to be more cost-effective than replacement. Further, CPP allowed them to maintain local traffic patterns through most of the neighborhood streets.
The effective, multiple uses of CPP repair techniques saved the municipality money and provided smooth riding pavements for the residents in a shorter time span than total reconstruction.
While it was an award-winning venture for this municipality, using these methods has become a more commonplace occurrence in the region and will continue to be so.
By using Concrete Pavement Preservation methods, DOTs are discovering many benefits — beyond the financial — of repairing concrete roadways. The biggest advantage for our society is the increased awareness toward sustainability. Repairing the roads instead of rebuilding prematurely will save on materials. Using diamond ground surfaces conserves fuel, as vehicles report better mileage on the smooth, safe surfaces. Additionally, the Buried Treasure is another sustainable concept of CPP. An existing asphalt overlay on a structurally sound concrete pavement can be ground off and recycled. The concrete pavement below can then be diamond ground. This is advantageous with today’s sky rocketing asphalt prices where additional asphalt overlays are becoming far too expensive.
Municipalities and their residents are increasingly more concerned about the sustainability of the projects constructed in their neighborhoods. Adding to the longevity of the existing roads through these repair techniques is a more sustainable solution than a short-lived and expensive asphalt overlay.
Today and tomorrow
The concrete preservation industry is well suited for these tough economic times. CPP is economically affordable, sustainable, provides a safe pavement surface and gives motorists a smooth, quiet ride. It’s not just a trend for tough times but a way of life for keeping our roadways in shape.
John Roberts is the executive director of the International Grooving and Grinding Association (IGGA). Visit them online at www.IGGA.net.