Equipment World

September 2017

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EquipmentWorld.com | September 2017 45 C oncrete pavement restoration (CPR) is much like its shared acronym, in that it restores life to worn-out pavement. But CPR isn't just one simple preservation process. It comprises a handful of techniques that must be applied to match certain conditions and during certain stages of pave- ment distress. Jerod Gross, project manager for Snyder and Associates in Des Moines, Iowa, described this process during the recent National Pavement Preservation Conference in Nash- ville, Tennessee. According to Gross, the understanding of when and how to apply preservation techniques comes partly from a well-organized pavement preservation policy. This policy needs to state "what the goal is, what is the condition of the roadway and what kind of service life do you want out of your roadway," says Gross, who has also worked with the National Concrete Pavement Technology Center on pavement preservation management. These factors must be de- termined before a treatment is selected with the corresponding roadway, technique and time. To do this, pavement owners, such as state departments of transportation and municipal road departments, need to know the pavement's expected performance and the expectations of the driving public, which are usually a smooth road and fewer traffic delays. They also need to know the costs. The aim is to maximize preser- vation dollars and to act before a road is too far gone, Gross says. Waiting too long can lead to agen- cies spending four to 10 times more to restore a road. "It's important to recognize where your roadway is on a pavement management curve," Gross says. The American Concrete Pave- ment Association (ACPA) says planning CPR needs to begin at roughly two-thirds to three- quarters of a pavement's original design life. For example, a 20-year pavement should undergo preser- vation within 12 to 15 years. road technology | by Chris Hill | ChrisHill@randallreilly.com CONCRETE PAVEMENT RESTORATION: How to give CPR to roads (International Grooving & Grinding Association) Workers cut slots in concrete pavement for dowel bar retrofitting, one of the techniques used in concrete pavement restoration.

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