Asphalt milling is a resurfacing process that involves removing the top layer of an existing asphalt pavement to create an even surface. The milled area is then overlaid with new asphalt. This is a faster and more effective way to create an even surface compared to patching individual potholes. The result is a uniform surface that does not have the patchwork appearance or inconsistent feel of old and new asphalt patches.
Milling may also be necessary when new pavement needs to be level with existing elevations. Simply adding a layer of asphalt would raise the elevation too much, so the existing surface must be milled down to the ideal thickness to ensure the new asphalt can meet flush with the required elevations. Overall, milling is a crucial step in the asphalt resurfacing process to ensure a smooth and uniform surface.