借助粘弹性理论开展对沥青混合料物理力学性质的研究,已迫在眉睫。本文作者利用开式三轴仪的主机对沥青混合料进行了有关松弛的探索性试验,探讨了影响沥青混合料松弛性能的因素。发现应力松弛不仅与沥青性质有关,而且还取决于初应力的大小与环境温度等。通过对δ_0—t 曲线的分析,分别讨论了四种不同类型沥青混合料的松弛特性,并对它们的路用性质作了评价。 With viscoelastic theory of physical and mechanical properties of asphalt mixture research, is imminent. In this paper, the host of the open triaxial apparatus made exploratory experiments on asphalt mixture, and discussed the factors affecting the relaxation performance of the asphalt mixture. It is found that the stress relaxation is not only related to the nature of asphalt, but also depends on the initial stress and the ambient temperature. By analyzing the δ_0-t curves, the relaxation characteristics of four different types of asphalt mixtures are discussed respectively, and their road properties are evaluated.