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Article Navigation >  Journal of Traffic and Transportation Engineering  > 2009  >  9(1): 56-61
ZHAO Yan-qing, PAN You-qiang, TAN Yi-qiu. Effects of gyration compaction number on design and performance of Superpave mixture[J]. Journal of Traffic and Transportation Engineering, 2009, 9(1): 56-61. doi: 10.19818/j.cnki.1671-1637.2009.01.012
Citation: ZHAO Yan-qing, PAN You-qiang, TAN Yi-qiu. Effects of gyration compaction number on design and performance of Superpave mixture[J]. Journal of Traffic and Transportation Engineering, 2009, 9(1): 56-61. doi: 10.19818/j.cnki.1671-1637.2009.01.012
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Effects of gyration compaction number on design and performance of Superpave mixture

doi: 10.19818/j.cnki.1671-1637.2009.01.012
  • 1.

    Jiangsu Transportation Research Institute Co. Ltd., Nanjing 210017, Jiangsu, China

  • 2.

    Department of Transportation Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China

  • 3.

    School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, Heilongjiang, China

More Information
  • Author Bio:

    ZHAO Yan-qing(1972-), male, associate professor, PhD, +86-411-84707761, Yanqing_zhao888@126.com

  • Received Date: 2008-07-28
  • Publish Date: 2009-02-25
    Abstract
  • In order to study the effects of gyration compaction number on the design and performance of Superpave mixture, Superpave 20 and Superpave 25 asphalt mixtures were designed by using different gyration compaction numbers (75, 100 and 125), and the various mixtures were evaluated by conducting wheel rutting, low-temperature bending beam, immersion Marshall stability and freeze-thaw split tests, asphalt film thicknesses were calculated, and corresponding field test sections were constructed. Test result shows that the increase of gyration compaction number for Superpave mixture does not necessarily decrease asphalt design content; the increase of gyration number by 25 can improve the dynamic stability of asphalt mixture by approximately 15%~30%. Gyration compaction number has negligible influences on the low-temperature performance and moisture damage susceptibility of asphalt mixtures, and asphalt film thickness increases with the increase of gyration compaction number. When aggregate properties and construction technologies meet the requirements, the field performance of asphalt mixture can be improved by increasing the design gyration compaction numbers.

     

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