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Updated: July 8th, 2008 05:26 PM EDT
RAP Preheating System Provides Economical Solution
The Shelly Company, an asphalt producer with 47 plants located throughout Ohio, puts new RapSaver technology to the test in an effort to economically increase the use of reclaimed asphalt pavement (RAP), while lowering emissions
Recycle usage has become more prevalent, which is forcing producers to search for ways to use recycle at sufficient percentages economically, while minimizing problems associated with RAP, such as blue smoke, and temperature reduction.
With inlet RAP moistures of 5 percent of less, RapSaver has been able to dry RAP to 1 percent moisture and less in a single pass.
The RapSaver is a preheating system comprised of a continuously fed sealed conductive heating system that allows cold wet RAP to be heated and dried using a slow moving hollow screw heating auger and heated trough.
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"The guys at Burke have been great during installation, and the bad weather made it even tougher," he continues. "They are staying with us to complete testing, and gathering of all operating baseline data through the remainder of the 2006 season. If it performs as we think it will, it's going to give us a whole new prospective on the value of recycling RAP."
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