Road construction engineering doctrine in France distinguishes between the structural role
played by the base courses and the functional role required for vehicle traffic, which is provided by an appropriate surface course. This wearing course can be thin but it must have excellent and durable surface characteristics.
Microvia® is a modified binder based sand asphalt with 0/6mm 2/4 gap grading developed by Eurovia for surface courses. The solution offers both comfort and performance.