“A track test will be carried out at the Bizkaia Connected Corridor and noise improvements will be assessed”
TECNALIA is developing more sustainable road surfaces to reduce traffic noise by incorporating materials from the recycling of end-of-life tyres
TECNALIA collaborates with Campezo, Asfaltia, Cepsa and Signus to develop more sustainable road surfaces to reduce traffic noise. For this purpose, instead of aggregates, a granulate of recycled rubber from end-of-life tyres is used in its manufacture. This is an innovative project, as up to now the rubber used in road surfacing is in powder form with particle sizes under 0.8mm.
Test in a real scenario
In the first phase, various bituminous mixtures with rubber granules will be designed, manufactured and characterised in a lab. From there, a track test will be carried out at the Bizkaia Connected Corridor and noise improvements for the mix will be assessed.
- TECNALIA helps with technological surveillance of the poroelastic surface market.
- It works on specifications for the acoustic design of new mixes.
- It supports acoustic performance and mechanical tests.
New noise reduction solutions
Environmental noise, largely caused by moving traffic, is a major factor affecting the health of the world’s population. It is therefore important to take measures to reduce noise levels in residential areas.
One of the most commonly used solutions has been the installation of noise barriers, but noise-reducing road surfaces are an interesting option from the point of view of effectiveness and cost.
Positive impact on the population
The results of this project will prove that the use of tyre rubber in bituminous mixes is an efficient solution that enables the manufacture of sustainable road surfaces. This will reduce traffic noise and have a positive impact on the population.
These developments are part of the PERSEUS project, supported by the Centre for the Development of Industrial Technology (CDTI).
