Study on the Dynamic Performance of Asphalt Concrete under Passive Confined Pressure
(0) An improved passive confining pressure SHPB method was used to study the dynamic mechanical behaviors of asphalt concrete under quasi-one dimensional strain state.The effect of confining jacket material and its geometrical sizes on the confining pressure were discussed.The dynamic strength, dynamic modulus of elasticity and dynamic Poisson ratio of asphalt concrete were obtained.The influential rules of confining pressure on the dynamic properties were studied by comparing the stress-strain curves of asphalt concrete under different stress states.The study found that passive confining greater impact on the strength of asphalt concrete than elastic modulus and Poisson ratio, but the elastic modulus improved with the increase of confining pressure.
Asphalt concrete High strain-rate Confining pressure Dynamic mechanical properties Quasi-one dimensional strain
Hua Zhang Fei Li Yuwei Gao
College of Civil and Transportation Engineering,HoHai University,Nanjing 210098
国际会议
上海
英文
1755-1759
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）