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沥青路面病害的产生数量不仅与设计和施工质量有关,而且随着道路使用期的增长成指数关系逐步增加。以沥青混凝土路面通车里程估算,目前我国每年仅高速公路日常养护工程中因处理路面病害挖切产生的废旧沥青混合料即达数百万吨以上。如此大量的废旧材料量必须进行再生利用,否则不仅是严重的浪费,而目是严重的环境污染源之一。自20世纪中期以来,我国已在路面材料再生利用领域取得了较大的成绩,各种再生技术逐步成熟。其中,厂拌再生工艺的作业高效率和高质量得到了公路工程学术界的公认。
The number of asphalt pavement diseases is not only related to the quality of design and construction, but also increases exponentially with the increase of road life. Asphalt concrete pavement mileage estimates, at present, China’s annual routine maintenance only highway pavement processing due to cut waste generated asphalt mixture that reached millions of tons or more. Such a large amount of waste materials must be recycled, otherwise it is not only a serious waste but also a serious environmental pollution source. Since the middle of the 20th century, China has made great achievements in the recycling of pavement materials, and various regeneration technologies have gradually become mature. Among them, the high efficiency and high quality of the plant mixing regeneration process has been recognized by highway engineering academia.