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Volume 35 Issue zk1
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TAN Fan, HUANG Bin, RAO Xi-bao. Experimental study on dynamic properties of asphalt concrete core material[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk1): 383-387.
Citation: TAN Fan, HUANG Bin, RAO Xi-bao. Experimental study on dynamic properties of asphalt concrete core material[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk1): 383-387.
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Experimental study on dynamic properties of asphalt concrete core material

  • 1. Geotechnical Division of Yangtze River Scientific Research Institute, Wuhan 430010, China; 2. Key Laboratory of Geotechnical Mechanics and Engineering of the Ministry of Water Resources, Wuhan 430010, China; 3. College of Civil and Architecture Engineering, Wuhan University, Wuhan 430072, China

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  • Received Date: March 01, 2013
  • Published Date: July 18, 2013
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  • To study the dynamic properties of asphalt concrete core materials, a series of dynamic triaxial experiments are conducted under different cell pressures, temperatures and consolidation ratios. The results show that dynamic elastic modulus is less affected by the extent of dynamic strain under the same experimental conditions. The stress-strain backbone curve can be described by a straight line through the origin, the slope of which is regard as the elastic modulus. The formula Ed=kpa(σm/pa)npresents the relationship of elastic modulus and mean sustained stress under the same temperature and stress ratio. Due to the rheological properties of asphalt concrete core materials, the elastic modulus decreases and the damping ratio increases with the rising of the temperature.
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