CHARACTERISTICS AND PERFORMANCE OF LOW-QUALITY AGGREGATE IN AN EXPERIMENTAL FLEXIBLE PAVEMENT-ABRIDGEMENT

the results of the studies reported in this paper suggest that the presence of deleterious material in either fine or coarse aggregate may be detrimental to pavement performance. Laboratory and field data indicate that, although these materials may perform satisfactorily in the initial stages of pavement life, exposure to saturation and freeze-thaw conditions can result in substantial deterioration in mixture strength and stiffness. It is concluded that such materials should not be used in surface-course mixtures where climatic exposure is greatest. Such materials could be used in base courses if adjustments are made in layer equivalencies to account for lower durability characteristics. The data also suggest that the presence of deleterious materials in coarse aggregate is not solely responsible for the poor performance exhibited by these mixtures. Deleterious fine aggregate may also adversely affect the durability of mixtures prepared with low-quality aggregates. This possibility is currently being investigated at Ohio State University. (Author)

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1979/734/734-005.pdf
• Summary URL:
  • https://scholar.google.com/scholar_lookup?title=CHARACTERISTICS+AND+PERFORMANCE+OF+LOW-QUALITY+AGGREGATE+IN+AN+EXPERIMENTAL+FLEXIBLE+PAVEMENT-ABRIDGEMENT&author=K.+Majidzadeh&author=G.+Ilves&publication_year=1979
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Mineral Aggregates. 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:
  • Majidzadeh, Kamran
  • Ilves, George
• Conference:
  • 58th Annual Meeting of the Transportation Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1979-1-15 to 1979-1-19
• Publication Date: 1979

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 27-31
• Monograph Title: Copper Mill Tailings, Incinerator Residue, Low-Quality Aggregate Characteristics, and Energy Savings in Construction
• Serial:
  • Transportation Research Record
  • Issue Number: 734
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Aggregates; Field tests; Flexible pavements; Freeze thaw durability; Laboratory tests; Pavement performance; Percent saturation; Stiffness; Strength of materials
• Uncontrolled Terms: Experimental design
• Old TRIS Terms: Freezing thawing effects; Low grade
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00316671
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Oct 27 1980 12:00AM