随着硬性面层道路建设工程量的不断增加,胶结料和石料的需要量越来越多,同时也增加了现有道路的养护、维修费用。据有关资料统计,这些费用占道路建设开支的60％以上,开支的大部分用于材料费支出。所以,改进现有路面维修方法,降低路面维修材料用量,仍是迫切需要解决的问题。最近苏联回收利用旧料,采用卓有成效 With the continual increase in the amount of construction work on hardened surface roads, the demand for cementitious materials and stone materials is increasing, and the maintenance and repair costs of existing roads are also increased. According to statistics, these costs account for more than 60% of the expenditure on road construction. Most of the expenses are spent on material expenses. Therefore, to improve the existing pavement maintenance methods and reduce the amount of pavement maintenance materials is still an urgent problem to be solved. The Soviet Union recently recycled old materials, the use of fruitful