Tarmac Creates New Concrete, Making Roads Quieter

Tarmac, in collaboration with Wirtgen and Atmo Technology, has developed a new type of concrete that could significantly reduce highway noise. The system has already undergone trials, demonstrating an impressive noise reduction of 7 decibels. But what makes this technology so special, and how can it be applied in the construction industry?

The Main Source: Tarmac trials new technique to cut concrete road noise

What Benefits Does This Technology Offer?

Beyond the use of new materials, this technology incorporates a special grinding technique. In general, the history of using concrete for highway construction dates back to the 1990s. At that time, the construction lobby actively promoted this idea, but noise and vibrations caused by the mix components and drainage grooves, which prevent skidding, became a major obstacle. Over the past 20 years, solutions to these issues have been sought.

In addition to new materials, the implementation of a new grinding technique has become a truly significant innovation. Unlike the common practice of thin diamond grinding, which removes about 3 mm of the surface layer and is performed every five years, the new technology boasts a service life of 10-15 years. This substantially reduces maintenance costs. Furthermore, the new maintenance method does not harm the pavement or the surrounding environment, positively impacting related industries.

What Is the Current Situation With Concrete?

Currently, the technology is still undergoing testing. Trials have been conducted on a 1.5-kilometer section of the A30 motorway, where the results have been confirmed as successful. The next steps will involve addressing minor issues, conducting larger-scale testing, and establishing mass production.

Nick Angelou, Regional Contracting Director at Tarmac, said:
“This significant trial has helped to develop a solution for concrete roads which can reduce noise for neighboring communities as well as extend the lifecycle of the asset to deliver financial and environmental savings by eliminating the need for earlier intervention.”

Nick Knorr, Head of the National Concrete Roads Programme, added:
“This trial was part of our Concrete Roads Programme, which will ultimately replace all of our existing legacy concrete roads. Achieving this goal will take time and significant investment, so we must find cost-effective ways of extending the life of those still in use until they can be replaced.”

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