In addition, contractors are receiving excellent ride smoothness results. To receive maximum bonus on the project, contractors must adhere to a stringent 1.2 mm deviation per 100 m under the International Roughness Index. Preliminary field results show the paving train is achieving IRI readings ranging from 0.8 to 1.1 mm per 100 m.
The combination of uniform mat temperatures behind the screed, remixed asphalt, full-width paving and bonus- level smoothness results should give Nouvelle Autoroute 30 s.e.n.c. a durable asphalt road surface that will require minimal maintenance throughout its 35-year ownership of the new highway. “The ultimate winner, however, is the traveling public, who will have a much more efficient way of traveling around the Montréal region,” says Lefebvre.