Asphalt Recycling is able to recycle 100% of existing
asphalt to a depth of 50 mm (2.0"). This is accomplished by
heating and removing two separate layers of asphalt from the road
surface, combining the two layers and relaying it by conventional
methods. The result is a low cost, high quality and
environmentally friendly surface that can be created quickly with
minimal disruption in traffic.
Parameters (please refer to above diagram):
section heated by infra-red heaters prior to milling.
milling heads remove outermost third of highway lane to a depth of
material is windrowed into centre lane.
head, at the front of the B unit, mills to another 25mm.
virgin mix or asphalt rejuvenates, may be applied at this point.
surface is heated across full lane width.
mandrel, mills heated surface to a depth of 25 to 35mm. All
material is augered into centre lane.
is thoroughly mixed and elevated into a twin shaft pugmill and then
into the paver hopper.
A new mat 50mm deep is laid by conventional screed. The original
elevation will be achieved after rolling.
© 1999 Robert G. Rysiew