我国公路建设事业迅速发展,道路通车里程逐年增加,随着公路使用年限的延伸,在大自然和行车的作用下,加速了道路的各种病害,大大缩短了维修养护的间隔时间,道路养护、改造任务也越来越重。以往传统的养护方法在旧路面破损、基层强度不足,需补强改善时,是将旧沥青路面和旧结构层全部挖除,然后再重新做基层和面层,这样不仅工程造价较高、施工工期较长、污染环境、并且需要长时间中断交通,给行使车辆和行人的通行带来极大的不便。为解决现有传统养护改建施工中存在的实际问题,国内外同行经过多年的研究实践,使公路养护改建工作发生了重大变革,拼弃了传统工艺,采用先进的就地冷再生技术,为公路改扩建及日常养护工作开辟了一个新的领域。 With the rapid development of road construction in our country, the mileage of roads opened to traffic increases year by year. With the extension of the service life of roads, under the action of nature and driving, various diseases of the roads are accelerated, the intervals of maintenance and maintenance are greatly shortened, the road maintenance, Transformation tasks are also getting heavier and heavier. In the past, traditional maintenance methods were damaged on the old pavement and the grassroots were not strong enough. When the improvement was needed, the old asphalt pavement and the old structural layer were all excavated, and then the grassroots and surface layers were reworked. This not only made the project cost more expensive, Long period of time, pollute the environment, and the need to interrupt traffic for a long time, to bring great inconvenience to the passage of vehicles and pedestrians. In order to solve the practical problems existing in the reconstruction of the existing traditional maintenance, after years of research and practice, the counterparts at home and abroad have made great changes in the rebuilding of highway maintenance. They have abandoned the traditional techniques and adopted advanced cold regeneration technologies in place to provide high- A new area has been opened up for expansion, expansion and routine maintenance.