With 70 days to go to the inaugural Grand Prix in Russia, the Sochi Autodrom has applied 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 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 ensures the surface texture of the track remains 'grippy' and provides optimum traction for the tyres, which is vital as the drivers will reach speeds of almost 200 mph.

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.

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

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READERS COMMENTS

1. Posted by AlbertoDietz, 03/08/2014 18:42

"One looks forward to many, many successful Russian F1 GPs.

Those manifestly ignorant of other fields of enquiry missed an excellent opportunity to remain silent.

Tiny hint: Haisenko, Bociurkiw, Krush. "

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2. Posted by Topcat, 03/08/2014 11:15

"Bad idea, Bernie just doing it for the money obviously, 10 years too soon."

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3. Posted by CL, 03/08/2014 9:06

"Like the UK or any "civilised" Western country is any better...extraordinary renditions, invasion of other countries, killing innocents in the name of oil, constantly spying on our own citizens, being tolerant of pretty much any atrocity as long as the country sells us oil or gas or buys our arms. So, shall we boycott the British GP? Sorry, but if you are going to bring politics into sport, be prepared to stand up for all such instances, otherwise leave it where it belongs..."

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4. Posted by Ro, 02/08/2014 18:10

"They can put Hungarian duck down feathers down but I will NOT watch the race or even buy a magazine.

THE RACE SHOULD NOT BE TAKING PLACE IN SUCH A POORLY GOVERNED COUNTRY WHO HAVE NO REMORSE"

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5. Posted by simonmay, 02/08/2014 13:44 (moderated by an Adminstrator, 02/08/2014 14:23)

"Why oh why is F1 going to this terrible place?

The stands will be empty Turkey, Delhi, Valencia what a load of rubbish."

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6. Posted by F One, 02/08/2014 12:35

"F1 shouldn't be going anywhere near Russia."

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Final layer of asphalt laid at Sochi

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