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Track ballast - Wikipedia

Good quality track ballast is made of crushed stone. The sharp edges help the particles interlock with each other. Track ballast (close up) between railway sleepers and under railway track Track ballast forms the trackbed upon which railroad ties (sleepers) are laid.

Railroad Ballast, Types And Purpose

Track ballast (usually crushed stone), as it is known, is another important part of railroad infrastructure.

Why Crushed Stone ( ballast ) Are Placed In Railway Track .

Track ballast is typically made of crushed stone, although ballast has sometimes consisted of other, less suitable materials, for example burnt clay. The term “ballast” comes from a nautical term for the stones used to stabilize a ship. Track ballast forms the track bed upon which railroad ties (sleepers) are laid.

Crushed Rock Track Ballast Specification - gosite.ca

two following classes of crushed rock ballast: Class 1 – Crushed rock ballast for use primarily on main line track. Class 2 – Crushed rock ballast for use only on non-main line track and shall include rail equipment layover yards and maintenance facility tracks. This specification is intended to identify suitable supply sources for track .

Section 02726 - Crushed Rock Ballast

Class 1 – Crushed rock ballast for use primarily on main line track. Class 2 – Crushed rock ballast for use only on other than main line track. This specification is intended to identify suitable supply sources for track ballast on Metrolinx new, rehabilitated, and maintenance track infrastructure. 1.2 DEFINITIONS .1 Ballast: Ballast is a .

Federal Register :: Ballast Defects and Conditions-Importance .

Background —Ballast may consist of crushed stone, crushed slag, screened gravel, and other materials; ballast is an integral part of the track structure. Ballast, regardless of the material, must satisfy all four of the requirements in FRA's track safety standards in 49 CFR part 213. See §§ 213.103 and 213.334. [ 1]

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