Earthworks All new asphalt pavement requires a suitable base course to be constructed prior to the placement of the asphalt. The construction and choice of base course thickness and material will vary depending upon: The type of existing ground the pavement is to be built on. i.e. sand, gravel or clay. What form of transport will be using the paved surface. i.e. cars, trucks, semi trailers, forklifts.  Location of the … Continue reading Other