Restauration using Cold Recycling technology in the USA

One of the major north-south routes in the eastern United States of America runs across the state of Virginia with two lanes in each direction – Interstate I-81. Continuously increasing traffic volumes and the loads imposed by heavy-vehicle traffic had left the pavement surface covered with alligator cracks, wheel ruts and patches where minor repairs had been carried out. In previous years, VDOT had been able to keep traffic up and running by carrying out extensive repair operations. Wirtgen WR 2400 cold recycler with a working width of 2.40 m was at the ready for the soil stabilizing operation to be carried out next, which would restore the subgrade to the required bearing capacity. At the same time, the cold recycling mixing plant was busy recycling the reclaimed asphalt material in an "in-plant" process for full reuse. Its mobile mixing design enabled the mixing plant to be set up in the immediate vicinity of the construction site, which not only reduced the distance to be covered by the transport trucks, fuel consumption rates and CO2 emissions, but also resulted in a significant reduction of the overall construction costs. Asphalt pavers placed the material on the stabilized subgrade as a 20-cm-thick layer that was then effectively compacted by tandem rollers from Hamm. Finally, a 5-cm-thick asphalt layer was placed on top. Full Job Report: http://www.wirtgen.de/en/job-reports/...