SILANE PRETREATMENT OF MINERAL AGGREGATE TO PREVENT STRIPPING IN FLEXIBLE PAVEMENTS

Debonding of asphalt from mineral aggregates (stripping) was termed a problem as far back as 1938, yet it continues to plague the paving industry today. Commercial antistrip additives are available, but their long-term effects are not well understood. A silane coupling agent was compared with a well-known commercially available liquid antistrip agent (amine) in the immersion-compression and double-punch debonding tests on two Arizona mineral aggregate sources. The silane was used as a mineral aggregate pretreatment, whereas the amine was added to the asphalt. The results of this research are encouraging and indicate that the silane generally performed as well as the liquid antistrip agent or better. Further testing is recommended along with construction of experimental projects to evaluate field performance.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1982/843/843-016.pdf
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=SILANE+PRETREATMENT+OF+MINERAL+AGGREGATE+TO+PREVENT+STRIPPING+IN+FLEXIBLE+PAVEMENTS&author=J.+DiVito&author=G.+Morris&publication_year=1982
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• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Characteristics of Bituminous Materials. 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
• Authors:
  • DiVito, Joseph A
  • Morris, Gene R
• Publication Date: 1982

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 104-111
• Monograph Title: Asphalts, asphalt mixtures and additives
• Serial:
  • Transportation Research Record
  • Issue Number: 843
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Additives; Alternatives analysis; Amides; Compression tests; Cracking; Debonding; Flexible pavements; Mineral aggregates; Prevention; Silane; Stripping (Pavements)
• Subject Areas: Highways; Materials; Pavements; Security and Emergencies; I23: Properties of Road Surfaces;

Filing Info

• Accession Number: 00367358
• Record Type: Publication
• ISBN: 0309033209
• Files: TRIS, TRB
• Created Date: Nov 30 1982 12:00AM