846Civil EngineeringMedium
Which of the following statements regarding ballast materials are correct?
ABrick ballast has poor drainage characteristics.
BGravel ballast gives better performance on soft formation.
CCoal ash is not used as ballast with steel or cast iron sleepers.
DSand ballast causes excessive wear on top of rail
Correct answer
D. Sand ballast causes excessive wear on top of rail
Explanation
The correct answer is Sand ballast causes excessive wear on top of rail.