To start with, the stones that you see lying close to the railway tracks are collectively called track ballast. Minimum depth of ballast for broad guage is 250 mm and for metre guage it is 200 mm. The appropriate thickness of a layer of track ballast depends on the size and spacing of the ties, the amount of traffic on the line, and various other factors. An insufficient depth of ballast causes overloading of the underlying soil, and in unfavourable conditions, overloading the soil causes the track to sink, usually unevenly. Ballast is the granular material placed and packed below and around the sleepers to transfer load from sleepers to the formation. Primarily sand ballast is used for cast iron pot sleepers. Travelling by train is an amazing experience in fast-paced city life nowadays. A layer of crushed stones will be laid on the roadbed before the tracks are laid, which will … It basically forms the trackbed on which the rail sleepers are kept. Ballast may be defined as a layer of broken stone, gravel, moorum or any other material placed under and around the sleepers to distribute the load from the sleepers to the formation and for providing drainage as well as providing lateral and longitudinal stability to the track.. Function of Ballast In Railway Track Given that fact, you need stones of a specific type that won’t move around too much, except by kids chucking stones near the tracks, of course!

It can be used as a ballast material since it is cheaply available and also possesses good drainage properties. Stone to be used as ballast must be hard, tough and nonporous. I can already hear the question beginning to form in your head, what’s a rail sleeper? railway ballast The function of ballast in railway track. In fact, the track ballast serves a number of purposes. You get to witness the stunning vistas of nature, sprawling fields, cities teeming with people, or endless stretches of land with no sign of any life whatsoever. Track ballast is packed between the sleepers, in the areas below, and on the sides of railway tracks. It is found in red or yellow colour. It is the best material to be used in ballast for the railway track. It is available in large quantities in all railways. Another important aspect of track ballast is that it seals out any water that may be around the tracks to actually reach the tracks on a regular basis.

It is used as a ballast especially for station yards and as initial ballast for newly constructed tracks. Track ballast should never be laid down less than 150 mm (6 inches) thick, and high-speed railway lines may require ballast up to 0.5 metres (20 inches) thick. It is found in abundance in many parts of India. That wouldn’t do the trick. Mostly this type of ballast is used on Indian Railway. Also, the loud noise that is produced when a train moves rapidly also the tracks is also a nuisance to the surrounding areas. Where stone is not easily available, it can be used as ballast for railway track also.Thanks for reading the article. One more thing that you almost always see throughout your train-journey are those small stones lying alongside the track on which your train races. Coarse sand is better than fine sand. Track ballast is packed between the sleepers, in the areas below, and on the sides of railway tracks. A good moorum for ballast must contain large quantities of the small piece ofIt is found in the form of modules of varying sizes. Quality of stone ballast required per metre tangent length of broad guage is 1.11 cu.m and for metre gauge, it is 0.767 cu.m. Ballast less than 300 mm (12 …

Coal ash also called cinder is the by-product of coal-fired power plants and railway locomotives. Ballast in railway track performs the following function: It provides a suitable foundation for the sleepers. It is obtained from river beds or gravel pits along the track.The residual obtained from the coal used in locomotives is known as cinder or ash.

To start with, the stones that you see lying close to the railway tracks are collectively called track ballast. It also plays an instrumental role in keeping any vegetation in check that might grow around the tracks (and make the ground beneath the tracks weaker).

It is also used for wooden and steel sleepers where traffic density is very low.Moorum is the decomposed laterite rocks. For stone ballast generally igneous rocks such as granite, quartzite and hard trap are most suitable.Where the above stones are not available, softer stones like sandstone, limestone, etc may be used as ballast. This type of ballast normally is used in yards and sidings or as an initial ballast in new construction being cheap and easily available.Sand ballast stands fourth in merits as a ballast material.


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