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Using Reclaimed Asphalt for Pavement Preservation Surface Treatments
Agencies and practitioners have adapted typical practices to get similar performance from RAP as compared to virgin aggregates on their pavement preservation projects
May 17, 2021
At the end of 2020, the Federal Highway Administration (FHWA) released a new report that outlines the success of using Reclaimed Asphalt Pavements (RAP) in pavement preservation treatments. The FHWA documented case studies, best practices, applicable tests, costs and specifications for RAP in pavement-preservation treatments, such as chip sealing, slurry sealing and microsurfacing.
Greg Duncan, senior engineer at Applied Pavement Technology, Inc., recently presented a webinar with the FHWA and described how agencies and practitioners have adapted typical practices to get similar performance with RAP as compared to virgin aggregates with preservation treatments.
Pavement Technology, Inc. has begun treating roads on Big Pine Key that were resurfaced in 2016 as part of the Cudjoe Wastewater Improvement Project.
The project should take approximately three to four weeks to complete, weather permitting. This treatment will extend the life of the pavement up to eight years. The project will not take place on U.S. 1 and will not affect traffic along U.S. 1, Monroe County government spokeswoman Kristen Livengood said.
During the treatment period, the road will not be accessible to vehicular traffic for approximately 30 minutes. Access for emergency vehicles will remain available and the contractor will work to minimize inconvenience to residents. The contractor will also place signs the day before in the neighborhoods scheduled to be treated.