Archive for the ‘Pavement and Foundation’ Category
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.
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.
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.
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 […]
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.
Base Course of Flexible pavement The first coat to be placed, on top of your proper sub-base, is the base course. It provides additional load distribution and contributes to drainage and frost resistance.
Sub-Base Course of Flexible Pavement
Flexible Pavements Flexible pavements are those which are surfaced with bituminous (or asphalt) materials. Its “flexible” since the total pavement structure “bends” or “deflects” due to traffic loads. Generally this type of pavement requires some sort of maintenance or rehabilitation every 10 to 15 years.
Typical components of road Pavement system Several elements make up the roadway. Each layer represents one of the elements of the road pavement system. All these elements work together to provide a quality
Definition of Road or Pavement Pavement or Road is an open, generally public way for the passage of vehicles, people, and animals. Pavement is Finished with a hard smooth surface. It helped make them durable and able to withstand traffic and the environment. They have a life span of