Final layer of asphalt at the Sochi Autodrom to be completed today

With the 71 days to go to the inaugural Formula One Grand Prix in Russia, the Sochi Autodrom will today apply the final layer of the racing surface to the new circuit. Crews of 50 workers operating 15 specialized machines have been working around the clock, laying the asphalt with help from German track architects Tilke GmbH and other subcontractors to reach this important milestone for the new circuit.

The final composition of the three layers used to complete the racing surface, from top to bottom, is as follows:

— 4 cm asphalt wearing course, modified for racing circuits;
— 5 cm binder course and asphalt base course
— The final makeup of the asphalt contains special polymer material that insures that the surface texture of the track remains “grippy” and provides optimum traction for the tires on the cars, which is especially important as the drivers can reach speeds of almost 320km/h on the Sochi Autodrom track

Once work began on laying the actual track surface, the pavers worked on it all day without stopping as any break in the layering process may cause unevenness on the surface. The evenness was checked continuously and other quality checks were also made throughout the process. The final layer is 5cm deep and this layer alone will cover more than 5,000 cubic meters of the asphalt.

The makeup of the asphalt was developed specifically for the Sochi Autodrom. Hart Consult International created a unique recipe of the asphalt, working together with their Russian colleagues by taking into account various factors such as the local climate and the availability of suitable aggregates and bitumen. The average lifetime of the racing surface is almost 4 years.

Special sensors will also be mounted into the surface, which will fix the temperature of the asphalt. Furthermore, induction loops and equipment for measuring the speed that will provide the vital information for the timing system and statistics of the race will also be installed in the surface.

The final result of this intricate and high-tech design and construction work will be a world-class racing experience at the Sochi Autodrom that will be enjoyed by the fans and race drivers alike.