Civil engineering company, Jones Bros Ruthin, has completed work on a new major motor racing circuit on the Isle of Anglesey, off the coast of North West Wales. The ten-month contract included large scale earth and rock moving, on site quarrying and aggregate crushing, as well as high quality surfacing for the new 3.6km circuit.
Building the surface of the track itself required paving a 100mm sub-base and a 200mm capping layer, while the wearing course consisted of a polymer modified binder.

The track is 12m wide and had to be constructed without a centre joint for smoothness. Tarmac supplied and delivered FoamMaster, a foam-mixed base, conventional binder course and a high skid resistant surface course, 30mm of 6mm Masterphalt Racetrack incorporated High PSV aggregate and a modified binder.

The majority of the required aggregates were quarried on site and used in the foam-mix to the correct specification, while the hot binder course was supplied by Tarmac and installed by Jones Bros.
To assist with the asphalt paving Jones Bros used the latest System 5 grade control tool from Topcon, to remotely calculate the surface level of the track.

Huw Jones, managing director of Jones Bros said: "As a company we have decades of experience building and surfacing civil road projects, but this was our first race track build. For the track surface we elected to use FoamMaster because there was a cost effective source of raw aggregate on site, and secondly it could be laid cold, reducing the amount of energy required."

Huw continued: "The design specification for the tolerances and irregularities in the track surface were significantly higher than that of a normal highway surface, while the specification of a polymer modified binder ensured higher durability and resistance to skidding."
Capita Symonds North Wales, part of the Capita Group, was responsible for the overall design, layout of the track and the construction management.