The roadway is milled to a uniform depth throughout the surface layer of asphalt. Care is taken not to mill through to the subbase. The milled area is power broomed and cleaned and the initial and final milled areas are cut to a vertical plane. The edges of the milled areas serve as forms and significantly reduce the cost of forming. Fast track concrete is then placed by slipform or hand to the finished grade of the existing roadway.
Concrete placement is typical of traditional pavement methods with some key distinctions.
The finishing operations must be performed immediately behind the paving operations. Bull floating, tinning, curing and insulating should be completed within 90 minutes. The most recent state to evaluate this new trend in concrete paving is Kansas. The city of Leawood, Kan., recently completed a concrete resurfacing of 119th Street, which was originally constructed in 1987. The project will be monitored by the Kansas Department of Transportation for a period of five years using FWD measurements, condition surveys and tests for smoothness and bonding strength.