In this paper, asphalt mixture performance test is used to study the dynamic modulus of different types of rubber asphalt mixtures in the laboratory, based on the viscoelastic theory, in order to determine the actual dynamic modulus of different structural layers under the action of temperature field in the asphalt pavement. Based on the time-temperature equivalence principle and Sigmund model, the dynamic modulus main curve is established, and establish the correlation equation between temperature and dynamic modulus. The actual dynamic modulus of asphalt concrete at each pavement layer is calculated by referring to the test data of pavement temperature field in Shijiazhuang and Tangshan, and compare and analyze the design value and actual value of dynamic modulus. The results show that the influence of external factors such as temperature and frequency on the dynamic modulus of asphalt mixture is far greater than that of internal factors such as cement and gradation type. Affected by the temperature field, the dynamic modulus of concrete at different structural levels is dynamically changing. Taking the dynamic modulus at 20°C and 10 Hz as the limiting index for design data selection is inconsistent with reality and needs to be improved. This study not only provides the basis for dynamic modulus selection in asphalt pavement design, but also has certain reference value for improving the life of asphalt pavement.

本文基于粘弹性理论，通过沥青混合料性能试验，在实验室中研究了不同类型橡胶沥青混合料的动态模量，以确定温度场作用下不同结构层的实际动态模量。在沥青路面上。基于时温等效原理和Sigmund模型，建立了动模量主曲线，建立了温度与动模量的相关方程。参照石家庄和唐山路面温度场的试验数据，计算出各铺层沥青混凝土的实际动模量，并对设计值与实际值进行比较分析。结果表明，温度和频率等外部因素对沥青混合料动态模量的影响远大于水泥和级配类型等内部因素的影响。受温度场的影响，不同结构水平下混凝土的动态模量是动态变化的。以20℃，10Hz的动态模量为设计数据选择的极限指标与现实不符，有待改进。该研究不仅为沥青路面设计中的动态模量选择提供了依据，而且对提高沥青路面的使用寿命具有一定的参考价值。混凝土在不同结构水平下的动态模量是动态变化的。以20℃，10Hz的动态模量为设计数据选择的极限指标与现实不符，有待改进。该研究不仅为沥青路面设计中动态模量的选择提供了依据，而且对于提高沥青路面的使用寿命具有一定的参考价值。混凝土在不同结构水平的动态模量是动态变化的。以20℃，10Hz的动态模量为设计数据选择的极限指标与现实不符，有待改进。该研究不仅为沥青路面设计中动态模量的选择提供了依据，而且对于提高沥青路面的使用寿命具有一定的参考价值。