我国沥青路面再生技术与设备的现状和展望

The status quo and future perspectives of the Recycling Asphalt Pavement technology and equipment

沥青路面再生,是将路面翻挖或铣刨,回收旧沥青混合料,经过破碎、筛分,再添加一部分新骨料与新沥青(必要时添加再生剂),进行再生工艺的处理,重新拌制后,获得满足高等级公路路用性能要求的再生沥青混合料,并用于铺筑沥青路面结构层的一种成套工艺技术。开发具有国际先进水平的沥青路面再生技术及设备,是我国在新世纪可持续发展和保护生态环境的基本国策在公路建设和养护中的具体体现,对于维护和改善我国公路的质量,降低路面工程造价,保护环境,重复利用资源都有十分显著的社会意义和经济价值。

Recycling Asphalt Pavement, or RAP, is to dig or mill the old pavement, recover the old asphalt mixtures, then further break and screen and add some new aggregates and new asphalt (new regenerants if necessary) to recycle the material after remixing. This is a new technology to obtain the acceptable recycled asphalt mixtures for high- class highways. Developing these technologies and equipment at the internationally advanced level is the reflection of the national policies of sustainable development and protecting biological environment in road construction and maintenance. It will be important socially and economically as it will maintain and improve the road quality, reduce the pavement construction cost, protect the environment and reuse the resources.