青藏高原道路长寿命沥青路面材料与工程措施

Research of the Tibetan Plateau roads long-life asphalt pavement materials and engineering countermeasure

在青藏高原特殊的自然和气候条件下,为了解决道路沥青路面早期病害多的问题,研究了影响道路使用寿命的多种不利因素,并从材料、结构、养护等方面入手,研究了解决沥青路面使用寿命短的问题,指出采用废胶粉改性的沥青材料、增加乳化沥青封层、及时采取预防性养护等措施可延长道路使用寿命。

Under special natural climate conditions of Tibetan Plateau,in order to solve earl asphalt pavement diseases,the paper studies negative factors influencing road service cycle. Starting from aspects of material,structure and maintenance,it discusses ways of solving short asphalt pavement service cycle,such as applying wasted rubber powder modified asphalt material,increasing emulsified asphalt slurry seal,and timely adopting preventive maintenance measures and so on.