Roads Paving

In South Africa, almost all newly-constructed highways and arterial roads are surfaced with asphalt, or tar, as it’s locally known. These roads are built to handle high traffic volumes and heavy loads. They consist of several base layers of aggregate that are compacted and stabilised before a final layer of tar is laid over the surface. The application method and temperature can range from cold mix to hot mix and is dependent on the average traffic load. Hot mix consists of free-floating screed and is the surface of choice for highways with high traffic volumes. Conversely, cold mix is predominantly used on quiet secondary roads.