Surface Course of Rigid Pavement The surface course is the layer in contact with traffic loads. It consists of the PCC slab which is the stiffest layer and provides the majority of strength. … [Read more...] about Surface Course of Rigid Pavement
Pavement and Foundation
Base Course and Sub Base Course of Rigid Pavement
Sub Base Course of Rigid Pavement This is the layer (or layers) under the base layer. The properties and function of this layer are similar to those under flexible roads/pavements. A sub-base is not always needed and therefore may often be omitted. … [Read more...] about Base Course and Sub Base Course of Rigid Pavement
Rigid Road or Rigid Pavement
Rigid Road or Rigid Pavement Rigid pavement composed of a PCC surface course. Such pavements are substantially "stiffer" than flexible pavements due to the high modulus of elasticity of the PCC material. … [Read more...] about Rigid Road or Rigid Pavement
Surface Course of Flexible Pavement
Surface Course of Flexible Pavement This is the top layer which comes in contact with traffic. It normally contains the highest quality materials. It serves to prevent the entrance of excessive quantities of surface water into the underlying base & sub-grade. Surface Course is Sub-divided into two Layers Wearing Course A layer in direct contact with traffic … [Read more...] about Surface Course of Flexible Pavement
Definition of Hot Mix Asphalt
Hot Mix Asphalt HMA Hot mix asphalt (HMA) is "the black stuff" used as a pavement material. Its a combination of aggregate and asphalt binder mixed together at elevated temperatures that forms a hard, strong construction material when cooled to suitable temperatures. … [Read more...] about Definition of Hot Mix Asphalt