What is bitumen in road construction?

What is bitumen in road construction?

Bitumen is a material obtained by fractional distillation of crude petroleum as an end product. Bituminous materials were used for the construction of roads, preserving timber and for waterproofing stone walls. Nowadays, they are extensively used for surfacing of road and airport pavements.

What are the layers of bituminous road?

Bituminous pavements are constructed in different layers such as base course, binder course and surface course. These layers are made of different materials and provides different functions to the bituminous pavements.

What is road bitumen made of?

Bitumen is made from distilling crude oil, which in itself is a composition of hydrocarbons. The main products available are high octane fuels, petrol, diesel and gasoline. When these fuels are refined from crude oil, only the bitumen is left behind.

How do you make a bitumen road?

Steps in Bituminous Road Construction

  1. Steps in Bituminous Road Construction.
  2. Preparation of the existing base course layer.
  3. Application of Tuck Coat.
  4. Preparation and placing of Premix.
  5. Rolling.
  6. Quality control of bituminous concrete construction.
  7. Finished surface.

What are the types of bituminous?

Different Types of Bitumen, their Properties and Uses

  • Penetration Grade Bitumen.
  • Oxidized Bitumen.
  • Cutback Bitumen.
  • Bitumen Emulsion.
  • Polymer – Modified Bitumen.

What is bitumen used?

Bituminous materials are used for road construction, roofing, waterproofing, and other applications. For the main application, which is road construction, the major concerns, as with concrete, are cost and durability.

What is bitumen and its types?

The bitumen types regarding its generation source bitumen can be classified into three categories: natural, petroleum asphalts, coal tar pitches: These are solid and semi-solid bitumen which is directly produced through distillation from petroleum or by additional operations such as air blowing.

How bitumen is produced?

Bitumen, also known as asphalt in the United States, is a substance produced through the distillation of crude oil that is known for its waterproofing and adhesive properties. Bitumen production through distillation removes lighter crude oil components, such as gasoline and diesel, leaving the “heavier” bitumen behind.