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Note! Asphalt of Mandalika Circuit is Better Than Sepang Circuit

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Jakarta

The process of working on the last asphalt layer on the Mandalika Circuit track lane has been completed. The top layer of asphalt on the track is made with the best quality asphalt, even claimed to be better than the asphalt at the Sepang Circuit, Malaysia.

August 15, 2021 became a historic date, because the third or final layer of asphalt for the Mandalika Circuit was successfully spread 100% to the track lane area. This is a sweet gift for the Indonesian people who will celebrate independence day on August 17, 2021.

To be able to hold a MotoGP class racing event, the type of asphalt used should not be arbitrary. PT Indonesia Tourism Development Corporation (PT ITDC) imported asphalt directly from the UK to polish the third or top layer. The top layer of asphalt used is Stone Mastic Asphalt (SMA).

Quoted from Between, Director of Construction for the Mandalika Grand Prix Association (MGPA), Dwianto Eko Winaryo, said that the SMA track lane has a number of advantages, one of which is that the racer does not slip easily during rainy conditions. This will reduce the risk of the rider falling when crossing on a wet track. Asphalt SMA is also relatively new, and there are only a few circuits that use it.

“Not all circuits in the world use this type of asphalt. Because the products have just come out in 2015. That was just Silverstone, Dubai, and Phillip Island. Not even Sepang, because it was built in 2012 at that time there was no asphalt like this,” said Dwianto.

For information, Stone Mastic Asphalt (SMA) is a mixture of asphalt and is used to coat the top surface of asphalt. This asphalt layer is claimed to be able to strengthen the structure of the surface layer of the track so that it is strong, with the principle of stone by stone contact to strengthen the layer structure.

In total there are three layers of asphalt on the track lane of the Mandalika Circuit, which has a length of 4,310 m (4.3 km) with 17 bends. The lower asphalt layer uses stones from North Lombok and East Lombok. In addition, coarse aggregate Tau stone is also imported from Palu, Central Sulawesi, to strengthen the main track structure.

Additives Cellulose Fiber material from Germany was also imported to be able to glue stone and asphalt, as well as Limestone Filler from Ponorogo and Probolinggo, East Java.

(lua / lth)

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