asphalt

Mathilde spent four hours in a chamber breathing dust

Road dust can be a big problem in the winter, especially in northern climes where the use of studded tyres is allowed. Researchers are now studying how the type of stone used in asphalt affects the amount and harmfulness of dusty particulate matter that gets kicked up as studded tyres chew into the asphalt.

Crushed aggregates provide major environmental benefits

Norwegian cities are expanding very rapidly and in the areas surrounding many of them, naturally-occurring aggregates for asphalt and concrete production are becoming scarce. The solution may lie in local rock outcrops.

It pays to replace asphalt

Switching to more durable asphalt could save significant amounts of money on some Norwegian roads — possibly as much as NOK several hundred million a year