rocks used on railways granite,Why are there crushed stones alongside rail tracks? - QuoraThis is a good question with an interesting answer. The crushed stones are what is known as . On top of the foundation, you deposit a load of crushed stone (the ballast). . Why do railway tracks have crushed rocks in them whereas metros and . It is called ballast and is basically used to stop the rails and sleepers (ties).rocks used on railways granite,Track ballast - WikipediaTrack ballast forms the trackbed upon which railroad ties (sleepers) are laid. It is packed between, below, and around the ties. It is used to bear the load from the railroad ties, to facilitate drainage of water, . It is typically made of crushed stone, although ballast has sometimes consisted of other, less suitable materials,.
rocks used on railways granite