Reducing noise with glass and aluminium
The new design was used for the first time along a motorway in Herning. Over a 600-metre stretch it eliminated 20,000 bolts
To reduce noise levels along motorways the Danish company Milewide makes acoustic screens from aluminium and acrylic glass, a combination that is both effective and good-looking. The screens are assembled on site, and the original version consisted of several aluminium profiles that were joined using numerous bolts. This was time-consuming and expensive, so a year ago Milewide and Sapa began a development project.
“We’ve now found a solution that everyone is happy with,” says Gustav Lundkvist, an engineer with Sapa. “It consists of one large and one small profile that are clipped together. No special tools are needed for assembly, just a standard rubber mallet.”
The customer saves the cost of drilling and threading, assembly is much quicker and the installers get a better working environment.
“The new design was used for the first time along a motorway in Herning. Over a 600-metre stretch it eliminated 20,000 bolts. That’s a really big improvement,” says Ole Refshauge from Milewide.