Recycling Pavement for Highway 401 Expansion Project from Mississauga to Milton

Abstract
West Corridor Constructors (WCC) was selected to design and build the Highway 401 Expansion Project. The project widened 18km of Highway 401 from Credit River in Mississauga to Regional Road 25 in Milton, from the 3 lanes in each direction, to 5 lane sections and 6 lane (collector/express) sections. Highway 401 is the busiest and most congested highway in North America; therefore, WCC required a strategy to maintain traffic during construction while reconstructing the median portion of the highway and keeping the project on schedule. Removing existing road material and transporting it off-site was not feasible due to the volume of traffic. Instead, a recycling concept was used to eliminate the need for trucking off-site. Asphalt and concrete were recycled on-site to produce granular material that could be used in the pavement structure, resulting in the conservation of materials and less fuel consumption.