What Is Bitumen And Its Uses:
Bitumen is the binding material present in asphalt. Sometimes it is also known as mineral tar. Bitumen is produced by partial distillation of crude petroleum.
it is chemically a hydrocarbon and insoluble in water. But it totally dissolves in alkalies, alkaline carbonates, benzol, chloroform, bisulphide, naptha, coal tar, petroleum spirit and oil of turpentine.
It is obtained from 87% carbon, 11% hydrogen and 2% oxygen (By weight). The bitumen is produced in solid or semi-solid state and black or brown in color.
Forms Of Bitumen:
The general forms of bitumen are as following
1. Bitumen Emulsion:
It is a liquid compound which contains a large amount of bitumen in aqueous medium. It is suspended by some appropriate stabilizing agents in the aqueous medium.
2 Cut-back Bitumen:
This form of bitumen is produced by fluxing asphaltic bitumen in presence of some liquid distillates of petroleum or coal tar. Cut-back bitumen can be used as bitumen paint in cold.
3 Blown Bitumen:
It is a special form of bitumen produced by passing air under pressure at a higher temperature. This type of bitumen can be used as heat insulating material, roofing and damp-proofing felts, producing asphalt pipe and joint fillers etc.
4 Plastic Bitumen:
It comprises of bitumen thinner and appropriate inert filler (40%-45%). Plastic bitumen can be used for filling cracks in masonry structures, stopping leakages etc.
5 Straight run Bitumen:
This type of bitumen is obtained by distillation of the bitumen to a definite viscosity or penetration without further treatment:
Application Of Bitumen:
- Road Construction.
- Hydraulics & erosion control Catchment areas, basins.
- Dam groutings,
- Dam linings,
- Embankment protection
- Dam linings,
- Embankment protection
- Ditch linings, Reservoir linings
- Reservoir linings
- Jetties, Dyke protection
- Dyke protection
- Swimming pools
- Waste ponds
- Water barriers
- Mattresses for levee & bank protection
- Membrane linings,
- Waterproofing
- Revetments
- Sand dune stabilization,
- Drainage gutters,
- Backed felts
Thank you for your work
What is different between tar and bitumen?