Conductivity tests on open-hearth slag are discussed to determine if that material is satisfactory for use as railroad ballast in track-circuit territory. A series of conductivity tests are run on the open-hearth slag using a specially built 8-cu ft box with dimensions of 2x2x2ft. The box is filled with open-hearth slag, and resistance between the copper plates on opposite faces is determined by an ohmmeter. Resistance readings of open-hearth slag ballast material is compared with a ballast of acceptable conductivity. The conductivity of individual pieces of seven different ballast materials is investigated next. It is noted that considerable difference exists between the resistance of the open-hearth slag pieces and the resistance of the other types of ballast tested in the dry state. A final phase of the investigation determines resistance for a section of railroad track. It is noted again that the lowest resistance involves the thoroughly saturated condition. It is concluded that all the tests indicate that the open-hearth slag sample had higher conductivity in the dry state than any of the other ballast materials tested.

  • Corporate Authors:

    American Railway Engineering Association

    59 East Van Buren Street
    Chicago, IL  United States  60605
  • Publication Date: 1962-10

Media Info

  • Pagination: p. 35-38
  • Serial:
    • Volume: 64 N
    • Issue Number: 573
    • Publisher: American Railway Engineering Association

Subject/Index Terms

Filing Info

  • Accession Number: 00052315
  • Record Type: Publication
  • Source Agency: Association of American Railroads
  • Report/Paper Numbers: Proceeding
  • Files: TRIS
  • Created Date: Jul 15 1974 12:00AM