DEVELOPMENT OF A PRACTICAL METHOD FOR DESIGN OF HOT-MIX ASPHALT

The development of a method for the design of hot-mix asphalt is traced. The design of gradations based on aggregate packing characteristics was found to be impractical for routine mix design. Measurement of elastic stiffness and assessment of resistance to permanent deformation was made possible with the development of the Nottingham asphalt mix tester. This development provided a method of designing mixes using relevant mechanical properties as design criteria. The percentage refusal density equipment was used to manufacture specimens at levels of compaction that should be achieved in practice. For a particular source of aggregate, the effect of binder content and aggregate gradation on volumetric composition and mechanical properties can be assessed. Certain volumetric and test criteria are applied to identify the mix or mixes that will perform satisfactorily. The final mix formulation can then be selected on the basis of certain practical and economic considerations.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1991/1317/1317-005.pdf
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=DEVELOPMENT+OF+A+PRACTICAL+METHOD+FOR+DESIGN+OF+HOT-MIX+ASPHALT&author=K.+Cooper&author=S.+BROWN&author=J.+PRESTON&author=F.+Akeroyd&publication_year=1991
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• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1317, Asphalt Mixtures: Design, Testing, and Evaluation 1991. 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:
  • Cooper, K E
  • BROWN, S F
  • PRESTON, J N
  • Akeroyd, FML
• Publication Date: 1991

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 42-51
• Monograph Title: Asphalt mixtures: design, testing, and evaluation, 1991
• Serial:
  • Transportation Research Record
  • Issue Number: 1317
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Aggregate gradation; Binder content; Hot mix asphalt; Mechanical properties; Mix design; Testing equipment; Volumetric analysis
• Subject Areas: Highways; Materials; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00621472
• Record Type: Publication
• ISBN: 030905155X
• Files: TRIS, TRB, ATRI
• Created Date: Apr 30 1992 12:00AM