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LI Ping, WANG Bing-gang, ZHANG Zheng-qi. Design method of asphalt mixture aggregate gradation based on high-temperature performance[J]. Journal of Traffic and Transportation Engineering, 2010, 10(6): 9-14. doi: 10.19818/j.cnki.1671-1637.2010.06.002
Citation: LI Ping, WANG Bing-gang, ZHANG Zheng-qi. Design method of asphalt mixture aggregate gradation based on high-temperature performance[J]. Journal of Traffic and Transportation Engineering, 2010, 10(6): 9-14. doi: 10.19818/j.cnki.1671-1637.2010.06.002
shu

Design method of asphalt mixture aggregate gradation based on high-temperature performance

doi: 10.19818/j.cnki.1671-1637.2010.06.002
  • 1.

    School of Transportation Engineering, Changsha University of Science and Technology, Changsha 410076, Hunan, China

  • 2.

    Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang'an University, Xi'an 710064, Shaanxi, China

More Information
  • Author Bio:

    LI Ping(1978-),male,associate professor,PhD,+86-731-82309571,lipingchd@126.com

  • Received Date: 2010-07-03
  • Publish Date: 2010-12-25
    Abstract
  • In order to gain the aggregate gradation with extrusion, density and stabilization, the density test of coarse aggregate was used to research the influences of vessel volume and spreading mode on aggregate density, penetration test was established based on MTS, and Hamburg wheel rutting test was taken for different mixtures. The gradation of coarse aggregate was confirmed by penetration test, and the aggregate gradations of asphalt mixtures were combined by Bailey method. Test result shows that because of the difference of vessel volumes and falling modes of aggregate, the home and abroad test difference of loose densities of aggregate is 6%. The good high-temperature performance of the mixture designed with Bailey method can not be assured. Penetration test can distinguish the stability of coarse aggregate effectively, and the correlation coefficient with the rutting depth of mixture is 0.71. So the high-temperature performance of mixture can be kept well by using the method.

     

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