Transverse joints in an existing concrete pavement were resealed to evaluate a number of sealers and sealing methods. Six liquids were installed, including asphalt cement, field-mixed rubber-asphalt, two premixed rubber-asphalts, polyvinyl-chloride coal-tar, and tar-modified polyurethane, as well as three preformed neoprenes. Liquid sealers were placed 2 to 2-1/2 in. deep in some joints, and restricted to 1/2 in. in others. Some joints were sandblasted to determine the effect of clean joint faces on sealer performance. Three joint types were resealed--1-in. expansion joints spaced at 100 ft, 1/4-in. sawed contraction joints at 60 ft 10 in., and 3/8 in. insert-formed contraction joints also at 60 ft 10 in. Sealer performance has been evaluated over three winters and pavement cores and sealer samples taken to observe sealer condition. The neoprenes are all effectively sealing their joints except along spalls; some compression set has occurred in one brand, but has not yet affected performance. The polyvinyl-chloride sealer has generally performed best of the liquids, and the asphalt and field-mixed rubber-asphalt sealers generally performed poorly. Loss of adhesion between sealer and joint face is the most common failure mode for liquids, with entrapment of incompressible debris a serious problem for asphalt and field-mixed rubber-asphalts. Thorough joint cleaning was essential for some tested materials, but had no apparent effect on others. Generally, sealers placed 1/2 in. deep did not perform as well as those placed 2 to 2-1/2 in. deep. /Authors/

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  • Supplemental Notes:
    • Sponsored by and prepared in cooperation with the Federal Highway Administration. Study title: Resealing Rigid Pavement Joints.
  • Corporate Authors:

    New York State Department of Transportation

    1220 Washington Avenue
    Albany, NY  United States  12232
  • Authors:
    • Bryden, J E
    • McCarty, W M
    • Cocozzo, L J
  • Publication Date: 1977-5

Media Info

  • Pagination: 44 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00190168
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • ISBN: Res. Project 105-1
  • Report/Paper Numbers: FHWA-RD-77-S0662,, RR 49,, Interim Report
  • Created Date: May 11 2003 12:00AM