RATIONAL METHOD FOR LABORATORY COMPACTION OF HOT-MIX ASPHALT (WITH DISCUSSION AND CLOSURE)

The study "Gyratory Compaction Characteristics: Relation to Service Densities of Asphalt Mixtures" was initiated by the Asphalt Institute for the Strategic Highway Research Program (SHRP), contract A001. N sub Design is defined as the compactive effort (number of gyrations at a specific pressure) at which air-void level is measured for volumetric design. To determine the number of gyrations (N sub Design) required to represent various traffic levels in different climates, an experiment was conducted. Once it is shown that gyrations (N sub X) must relate to traffic levels (E sub X) and once the design gyrations are known, one simply can enter the design gyration (N sub Design), representing 20-year design traffic, into the compaction curve of the new mix design to obtain the final percent compaction (C sub X) of that mix; the target is 96% of maximum theoretical specific gravity (MSG). Thus, one can say, at that specific traffic level (gyration) and climate, the mix will compact to C sub X of the given MSG.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1994/1454/1454-017.pdf
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=RATIONAL+METHOD+FOR+LABORATORY+COMPACTION+OF+HOT-MIX+ASPHALT+(WITH+DISCUSSION+AND+CLOSURE)&author=P.+Blankenship&author=K.+Mahboub&author=G.+Huber&publication_year=1994
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• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1454, Asphalt Concrete Mixture Design and Performance. 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:
  • Blankenship, Phillip B
  • Mahboub, Kamyar C
  • Huber, Gerald A
• Discussers:
  • McRae, John I
• Publication Date: 1994

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 144-153
• Monograph Title: Asphalt concrete mixture design and performance
• Serial:
  • Transportation Research Record
  • Issue Number: 1454
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Climate; Compaction; Compactors; Hot mix asphalt; Traffic
• Uncontrolled Terms: Gyratory compactors; Laboratory compaction
• Subject Areas: Highways; Materials; Operations and Traffic Management; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00676645
• Record Type: Publication
• ISBN: 0309060621
• Files: TRIS, TRB
• Created Date: Apr 21 1995 12:00AM