SELECTION AND PERFORMANCE OF RAILROAD BALLAST

This paper reported an investigation of ballast selection, using standard and modified standard classification tests. The results enable ballasts to be selected with better reliability. A large number of standard laboratory tests were performed on ten ballasts to determine correlation with field performance. The field performance in terms of stability and in terms of breakdown of the ten ballasts was obtained from a CNR field test. In addition, the behavior of a layer of ballast was investigated under ideal loading conditions. Vibration tests investigated how ballast compacts under vibration. Repeated loading tests investigated the fundamental stress-strain characteristics of the ballast. These were supplemented by a model full-scale test. The results of this additional work will improve the specifications for the initial compaction of a layer of ballast and tie configuration to give the best subsequent performance under load. In the future it should lead to the development of a theoretically valid design method for the complete roadbed.

  • Availability:
  • Supplemental Notes:
    • This article is extracted from Symposium on Railroad Track Mechanics, RRIS 01 130826, Publication 7602.
  • Corporate Authors:

    Princeton University

    Department of Civil Engineering
    Princeton, NJ  United States  08450
  • Authors:
    • Raymond, G P
    • Gaskin, P N
  • Conference:
  • Publication Date: 1975-10

Media Info

  • Pagination: 41 p.
  • Monograph Title: SYMPOSIUM ON RAILROAD TRACK MECHANICS PRINCETON UNIVERSITY, 1975

Subject/Index Terms

Filing Info

  • Accession Number: 00130835
  • Record Type: Publication
  • Source Agency: Princeton University
  • Report/Paper Numbers: 76-TR-1
  • Contract Numbers: DOT-FR-54175
  • Files: TRIS
  • Created Date: Apr 7 1976 12:00AM