稀土改性冷补材料在国防公路养护中的应用

通过对国防公路路面养护与修补存在问题分析，研究了稀土改性冷补材料的机理，总结了稀土改性沥青路面低温冷补养护材料具备性能良好、操作简便、无专用设备和气候条件要求等特点，该材料在低温条件下修补，既能达到传统热补沥青的要求，又能弥补热补施工的缺点。为未来公路的养护，特别是对国防公路的建设、维修和战时抢修提供了更为有效的方法。

Application of Rare-earth-modified,Cold-fill Materials to the Maintenance of Highways for National Defense

Based on the impact of national defense highway pavement distress factor,this paper studied the rare-earth modified the mechanism of cold-fill materials, summed up the rare-earth modified asphalt pavement maintenance of cold fill material characteristics, such as its good performance, easy operation, no special equipment requirements and climatic conditions. The use of this material at low temperatures can achieve the requirements of the traditional hot-fill asphalt, and also compensate for the shortcomings of hot-fill construction. So this material used in highway maintenance would provide a more effective method,for the future, especially on national defense highway construction, maintenance and repair in wartime.