THE ABILITY OF VARIOUS WATERPROOFING MEMBRANES TO BRIDGE CRACKS THAT MIGHT DEVELOP IN THE CONCRETE ON WHICH THEY ARE APPLIED

This report contains a description and results of an investigation of waterproofing membranes fabricated with different combinations of fabrics and felts with asphalts or tars. The object of these tests was to determine the ability of various waterproofing membranes to bridge cracks that might develop in concrete on which they are applied without failure or leakage. Test specimens of concrete cylinders were prepared for the application and tests of the waterproofing membranes. Features of the membranes studied included the kind and grade of bituminous materials, the kind of fabric employed, the number of plies, the bond or slippage strength and the effect of prevailing temperatures. The test apparatus, a cooling chamber, and its operation was described. The results of the investigation show the most important factor in the performance of the membranes is temperature. Above-ground asphalts with cotton fabric are superior in the test performances. For special asphalts no conclusions could be made since two different supplies of the same type material behaved differently, but both were comparable to above-ground asphalts. The performance of preformed membranes increases with the number of its plies. Asphaltic emulsion with glass mat showed very little crack coverage ability, and cutbacks with glass mat had little stretch from 10 to 70 F. Epoxy resin did not give any stretch.

  • Corporate Authors:

    American Railway Engineering Association

    59 East Van Buren Street
    Chicago, IL  USA  60605
  • Publication Date: 1960-10

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 153-167
  • Serial:
    • AREA BULLETIN
    • Volume: 62 N
    • Issue Number: 559
    • Publisher: American Railway Engineering Association

Subject/Index Terms

Filing Info

  • Accession Number: 00052332
  • Record Type: Publication
  • Source Agency: Association of American Railroads
  • Report/Paper Numbers: Proceeding
  • Files: TRIS
  • Created Date: Jul 15 1974 12:00AM