ABSTRACT Laston Lapis Aus or Asphalt Concrete Wearing Course (AC-WC) is a part that is located on the top layer in the flexible pavement of the highway. This layer is the layer that is most susceptible to damage. This pavement layer is a mixture of several materials including asphalt, coarse aggregate, fine aggregate and (filler). Filler is a filler material that functions to fill the gaps or …