Mistra Innovation* has awarded HTC’s project Via Futura a grant of SEK 4 million with the aim of describing the environmental and financial effects of using HTC’s grinding technology on asphalt roadways. An earlier pilot project showed that grinding reduces both noise and rolling resistance to a considerable extent.
Uneven road surfaces generate negative effects in the form of noise both inside and outside the vehicle, as well as by increasing the rolling resistance of the wheels, which in turn leads to increased fuel consumption. Another undesirable effect of worn road surfaces is the increase in respirable particles. A pilot project on one of Sweden’s most heavily used roads, the E4, showed that grinding the road surface reduced noise by 2.2 dB(A) and reduced the rolling resistance by 4–7%, resulting in a reduction in fuel consumption of 2%.
“At HTC, we see the application of HTC’s tried and tested grinding technology to surfaces other than stone and concrete floors as very exciting. HTC has been developing this technology for many years and we hope this project will confirm what we believe: our method increases travel comfort as well as saving both the environment and the taxes spent on repairing the infrastructure – our roads, in this instance,” says Per Sandström, Business Area Manager at HTC.
HTC estimates that the grinding method could lengthen the service life of the road surface by approx. 20–50%, which would be a major cost saving. Grinding is a relatively fast process and it can be done either across the entire roadway or just along parts of it. Determining which of these is the optimum procedure will also be studied in the project.
The project is called Via Futura, and HTC is running it together with VTI, Linköping University, the Swedish Transport Administration, Svevia and Projektengagemang in Stockholm. The project is expected to be completed in December 2015.
* About Mistra Innovation
Mistra Innovation encourages small and medium-sized businesses to dare to invest in innovative ideas with high risk, considerable potential and strong environmental content. The programme is intended to have a positive effect both on the environment and on competitiveness. It also requires collaboration between industry and the university college, university or research institute. The aim is to support the research and development of a new generation of global competitive products, manufacturing processes and/or high-performance services and a radically reduced strain on natural resources and the environment throughout their life cycle.