There are many Classification of Sleepers. Sleepers classify according to the materials uses in the construction of railway rail tracks. The sleepers are of concrete, timbers, steel, cast iron, RCC, and the Prestress concrete. In these various types of sleepers, the sleeper which is economic uses in the construction of railway tracks.
And the climatic and geological considerations considers in making a decision of using the type of sleeper according to needs. The classifications of sleepers are as follows,
Classification of Sleepers
There are Many types of sleepers makes in the construction of the railway tracks.
- Wooden Sleepers
- Metal Sleepers
- Concrete Sleepers
1. wooden Sleepers
wooden Sleepers are the old traditional material used in the construction of railway track sleepers. It Satisfies all requirements of a good sleeper. It absorbs shocks and vibration due to heavy moving loads. The life of wooden sleepers depends on many facts like wear and tear, decay, and attack by termites, etc.
In the Railway bridges, the railway rail tracks are of wooden sleepers. It is because of its less weight, high load carrying capacity and its tendency to absorb shocks and vibrations.
2. Metal Sleepers
The Metal sleepers are of cast iron and steel. Metal sleepers use widely in the modern construction of railway tracks. Cast iron is widely engaging than steel because of its less tendency to corrosion. Metal sleepers use widely because of the shortage of wooden sleepers and its long life properties.
3. Concrete Sleepers
The Concrete sleepers are using more than any other sleepers because of its unique properties. They are more resistant to wear and tear. It withstands blows and vibrations cause due to heavy moving loads. And it is fewer subjects to chemical attacks, termite attacks, and more corrosion resistance.
There are two types of sleepers they are,
- Reinforced Concrete sleepers
- Pre-stressed Concrete sleepers