R.M.C. PLASTIC RAIL JOINT PACKING WITH VERMICULITE BASE

R.M.C. Plastic Rail Joints Packing is a cake composed of vermiculite impregnated with an asphalt oil and rust inhibitors. It is placed at the end rail behind the joint bar for the purpose of lubricating and protecting the joint. No-Ox-Id "A" is a rust inhibiting grease used for the same purpose. Comparison was made of these two substances by applying them to alternate 10 joint stretches. While the damage to rail ends by corrosion fatigue, which was found in so many cases with the original R.M.C. packing, does not seem to be repeated with the Vermiculite packing, there is no evidence that the overall protection is superior to that given with No-Ox-Id "A". The protection to the rail end in most cases appears to be inferior. Since rail web failures have been reduced in new rail designs, and since there was a lack of apparent benefit from the use of packing, the use of packing was abandoned.

• Corporate Authors:

  Penn Central Transportation Company

  Transportation Center, 6 Penn Center Plaza
  Philadelphia, PA  United States  19104
• Authors:
  • Code, C J
• Publication Date: 1957-9-16

Media Info

• Pagination: 3 p.

Subject/Index Terms

• TRT Terms: Corrosion; Defects; Fatigue (Mechanics); Fatigue (Physiological condition); Field tests; Lubrication; Rail joints; Railroad rails; Technology
• Geographic Terms: United States
• Old TRIS Terms: Corrosion fatigue; Web defects; Web defects (Rails)
• Subject Areas: Maintenance and Preservation; Railroads; Safety and Human Factors;

Filing Info

• Accession Number: 00040341
• Record Type: Publication
• Report/Paper Numbers: Test Rpt
• Files: TRIS
• Created Date: Jul 8 1994 12:00AM