Mechanical deicing is a method to remove the ice on the pavement surface, and the ice strength directly affects the difficulty and effectiveness of the mechanical deicing. This paper aims to investigate the compression strength of ice to facilitate the deicing equipment to crush ice. In this paper, a large-scale freezing laboratory is employed to simulate low-temperature environment, and the uniaxial unconfined compressive tests of artificial freshwater ice under different temperature conditions are carried out through the uniaxial loading system. The compressive strength and modulus of ice are obtained when the substrate is asphalt pavement. The test result shows that the ice compressive strength and modulus respectively distribute from 0.36 to 3.67 MPa and 11.7 to 359.1 MPa when ice temperature varies from −0.7 to −7.5°C. The relations between ice temperature and compressive strength are approximately in a linear manner, while the relation of compressive modulus and ice temperature shows good power function and exponential relationships, respectively, when ice temperature ranges from −8 to −5°C and from −5 to 0°C. Furthermore, the failure mechanism of ice under relatively lower temperature is due to the development of cut-through cracks inside the ice. The failure mode divides into shear failure and ductile failure and the failure ice is mainly composed of large ice strips and bulks. For the ice with relatively higher temperature especially the ice close to melting point temperature, the ice failure mode is compressive and ductile, and the failure ice is mainly composed of granular ice crystals.

机械除冰是一种去除路面上冰的方法，冰的强度直接影响机械除冰的难度和有效性。本文旨在研究冰的抗压强度，以帮助除冰设备将冰压碎。本文采用大型冷冻实验室模拟低温环境，并通过单轴加载系统对不同温度条件下的人造淡水冰进行了单轴无侧限压缩试验。当基材为沥青路面时，可获得冰的抗压强度和模量。测试结果表明，当冰温从-0.7到-7.5°C时，冰的抗压强度和模量分别分布在0.36至3.67 MPa和11.7至359.1 MPa之间。冰温度与抗压强度之间的关系大致呈线性关系，而当冰温度介于-8至-5°C和-5之间时，压缩模量与冰温度的关系分别显示出良好的幂函数和指数关系。至0°C。此外，在相对较低的温度下，冰的破坏机理是由于在冰内部形成了贯穿裂缝的缘故。破坏模式分为剪切破坏和延性破坏，破坏冰主要由大条冰和大块冰组成。对于温度相对较高的冰，尤其是接近熔点温度的冰，其破坏模式是压缩性和延性的，并且破坏冰主要由颗粒状冰晶组成。