LI Pei-long, ZHANG Zheng-qi, LI Hong-hua, WANG Bing-gang. Methods of Hamburg wheel tracking tests for asphalt mixture[J]. Journal of Traffic and Transportation Engineering, 2010, 10(2): 30-35. doi: 10.19818/j.cnki.1671-1637.2010.02.006
Citation: LI Pei-long, ZHANG Zheng-qi, LI Hong-hua, WANG Bing-gang. Methods of Hamburg wheel tracking tests for asphalt mixture[J]. Journal of Traffic and Transportation Engineering, 2010, 10(2): 30-35. doi: 10.19818/j.cnki.1671-1637.2010.02.006

Methods of Hamburg wheel tracking tests for asphalt mixture

doi: 10.19818/j.cnki.1671-1637.2010.02.006
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  • Author Bio:

    LI Pei-long (1980-), male, lecturer, PhD, +86-29-82336777, lipeilong@chd.edu.cn

  • Received Date: 2009-12-26
  • Publish Date: 2010-04-25
  • Four kinds of asphalt mixtures were made and Hamburg wheel tracking tests were conducted with the specimens in the water and in the air at 50 ℃ and 60 ℃ individually, the influence of water and temperature on rutting depth was analyzed. The tests were carried on to analyze the influence of specimen thickness and molding ways on rutting depth. The result indicates that water and raising test temperature can accelerate rutting appearance. The correlation coefficients are over 0.93 when the specimens are in the water at 50 ℃ and in the air at 60 ℃. According to the application of asphalt types, the right test temperatures of B-grade asphalt, A-grade asphalt and modified asphalt are 45 ℃, 50 ℃ and 60 ℃ respectively. The rutting depth of 40 mm-thickness specimen is much larger than that of others, which is not applicable for experiments.The test result of SGC cylindrical specimen has good relationship with that of plate specimen, their correlation coefficient is more than 0.95, so it can be used to evaluate the rut-resistance of asphalt mixture instead of plate specimen.

     

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