就地热再生与超薄罩面组合工艺在高速公路养护工程中的应用  

作　　者：曾勇军 王云飞 赵晓涛 赵瑞 

机构地区：[1]浙江杭徽高速公路有限公司,杭州311301 [2]北京中天路业科技有限公司,北京100029

出　　处：《科技创新与应用》2024年第30期164-167,共4页Technology Innovation and Application

摘　　要：沥青路面就地热再生具有快速、便捷、环保等优点,近些年在国内部分省份道路养护中得到广泛应用。但工程实践表明,就地热再生后的路面直接作为道路表面层使用,耐久性普遍较低,易出现路面泛白飞散掉粒、坑槽等病害。在就地热再生基础上直接加铺超薄罩面,可以发挥就地热再生的环保、便捷优势,又能利用超薄罩面作为保护层,延缓就地热再生面层的性能衰减,延长道路使用寿命。通过对就地热再生的工艺优化和对超薄罩面沥青混合料的配合比优化,实现就地热再生与超薄罩面的有效组合,长期跟踪观测表明具有良好的路用性能。In-situ hot regeneration of asphalt pavement has the advantages of being fast,convenient and environmentally friendly,and has been widely used in road maintenance in some provinces in China in recent years.However,engineering practice has shown that the road surface after geothermal regeneration is directly used as a road surface layer,and its durability is generally low,and diseases such as white,flying particles,and pits are prone to occur on the road surface.Directly adding an ultra-thin cover on the basis of in-situ thermal regeneration can give full play to the environmental protection and convenience advantages of in-situ thermal regeneration,and can also use the ultra-thin cover as a protective layer to delay the performance degradation of the in-situ thermal regeneration surface layer and extend road service life.Through optimizing the process of in-place hot recycling and optimizing the mix ratio of the asphalt mixture for the supermaster overlay,an effective combination of in-place hot recycling and ultra-thin overlay is achieved.Long-term follow-up observation shows that it has good road performance.

关 键 词：就地热再生 超薄罩面 组合工艺 配合比 养护工程 

分 类 号：U418.6[交通运输工程—道路与铁道工程]