What is the kerb extrusion process?
Asphalt kerb extrusion can be simply compared to squeezing toothpaste from a tube. The actual process is rather more complex but the principle is similar. Adhesion of the kerb to the surface upon which it is laid is achieved as a result of the high pressure and temperature at which the asphalt kerb material is extruded. At the heart of the process lies the Patented Extrudakerb asphalt machine. A machine which has evolved over many years and many thousands of kilometres of kerbing, been unsuccessfully copied but never equalled. The machine is able to automatically vary extrusion pressure and forward propulsion to adapt to different locally available asphalt mixes changing inclines and different mould profiles yet maintain a perfectly formed product extruded at pressure of around 2,500psi with an expected minimum life of 15 years. The extrusion machine is supplied with Kerb asphalt from a network of proven suppliers local to each project. The asphalt is mechanically conveyed from the sup
