摘要
利用MTS810材料试验系统,对松散热态SBS改性沥青混合料进行压缩试验,结合现场路面压路机的作用时间,建立了一种热态沥青混合料黏弹塑性本构模型;根据MTS压缩试验的循环试验结果,确定了不同荷载循环过程下沥青混合料的黏弹塑性参数,分析了热态沥青混合料的变形特性。结果表明:MTS压缩试验正确地反映了热态沥青混合料的应力响应特征,为深入研究沥青混合料的热流变性能提供了新的途径。
Carrying on the compaction test to the loose hot SBS modified asphalt mixture by the MTS810 material test system, combined with the response time of the pavement roller, authors established one kind of the viscoelastic-plasticity constitutive model of hot asphalt mixture. By the recycle test results of MTS compaction test, the asphalt mixture viscoelastic-plasticity parameters with different load cyclic processes were determined and the hot asphalt mixture deformation characteristics were analysed. The results show that the MTS compaction test correctly reflects the hot asphalt mixture stress response characteristics, and provides the new way for the thorough research on thermal rheological performance of asphalt mixture.
出处
《中国公路学报》
EI
CAS
CSCD
北大核心
2007年第6期25-30,共6页
China Journal of Highway and Transport
基金
交通部应用基础研究项目(2006319825090)
教育部高等学校博士学科点专项科研基金项目(20050536001)
关键词
道路工程
热态沥青混合料
压缩试验
黏弹塑性
流变模型
非线性拟合
road engineering
hot asphalt mixture
compaction test
viscoelastic-plasticity
rheological model
nonlinear fitting
