


How are rocks (track ballast) able to support a … - composed of rock ballast train tracks
网页Best Answer. Copy. Railroad companies tend to use rocks that are chemically and physically resistant to weathering. Quartzite, granites, and broken concrete are popular. Wiki User.网页The requirements of AS 27587 - Know More. service life of the rail track structure 20 Railway ballast applications 2 Ballast is typically made of crushed rock The term ballast comes from a nautical term for the stones used to stabilise a ship during loading and transportation Good ballast should be strong, hard-wearing, and stable, …
