What is the substitute material of ballast at railway track?

Hi,

Ballast types depend upon the traffic and spacing and size of ties.

The following are the materials used as a substitute for ballast :

Ballast is a base for rails that are made up of stone used to hold the railway track on its position when loading from the railway’s impact on the railway track.

• Now it is instead of stone a cement concrete ballast is used. It has a long life and High durability.
• In ancient days, wood ballast was used.
• Steel sections are also used as a ballast for railways tracks.