SEALING CRACKS IN BITUMINOUS OVERLAYS OF RIGID BASES

The objective of this project was to evaluate the effectiveness of seven polymer, rubber, or fiber-modified asphalt sealants and two asphalt emulsion sealants in sealing cracks in a bituminous concrete overlay on a rigid base. These nine sealants were compared with a filled asphalt cement, Pennsylvania Department of Transportation Class J-1. The sealants were observed to determine the effects of crack preparation, application methods, weather, and traffic on their performance. Inspections were conducted during different seasons to determine the condition of the sealants under weather extremes. The results of these inspections indicated that three sealants--Prismoseal A-2, AC-20 with Fibre-Pave, and AC-20 with rubber--performed significantly better than the remaining seven sealants and will be adopted for use in Pennsylvania. In addition, Superseal IIIA and Sof-Seal LM were recommended for further evaluation in sawn joints. H-1 with rubber, E-3, and CRF were not recommended for use because their performance, although satisfactory, was not outstanding.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1985/1041/1041-011.pdf
• Summary URL:
  • https://scholar.google.com/scholar_lookup?title=SEALING+CRACKS+IN+BITUMINOUS+OVERLAYS+OF+RIGID+BASES&author=N.+Knight&publication_year=1985
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309039576
• Supplemental Notes:
  • Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved. Publication of this paper sponsored by Committee on Pavement Maintenance.
• Authors:
  • Knight, Norman E
• Publication Date: 1985

Media Info

• Media Type: Print
• Features: Figures; Maps; References; Tables;
• Pagination: pp 75-81
• Monograph Title: Cathodic protection, concrete and bituminous maintenance, and bridge repainting
• Serial:
  • Transportation Research Record
  • Issue Number: 1041
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Bituminous overlays; Cracking; Durability; Fibers; Pavement base course; Polymers; Rubber; Sealing compounds; Traffic loads; Weather
• Old TRIS Terms: Bases
• Subject Areas: Freight Transportation; Highways; Maintenance and Preservation; I61: Equipment and Maintenance Methods;

Filing Info

• Accession Number: 00458110
• Record Type: Publication
• ISBN: 0309039576
• Files: TRIS, TRB
• Created Date: Sep 30 1986 12:00AM