• Track ballast - Wikipedia

    Track 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 ...

  • Track (rail transport) - Wikipedia

    For clarity it is often referred to as railway track ... The formation comprises the subgrade and a layer of sand or stone dust ... The track and ballast form the ...

  • CHARACTERIZATION OF CLEAN AND FOULED …

    Characterization of Clean and Fouled Rail Track Ballast -Model and Field Studies Fig ure 1: Shear wave velocity of ballast with respect to percentage of fouling (CB ...

  • Track (rail transport) - Wikipedia

    For clarity it is often referred to as railway track ... The track ballast is customarily crushed stone, and the purpose of this is to support the sleepers and allow ...