摘要
沥青路面的空隙率与路面使用性能密切相关。空隙率大,路面构造深度、摩擦系数大,抗滑性能好,但面层老化、车辙、开裂相对严重,抗渗、抗冻、抗水损害能力差。因此,欲提高沥青路面质量,延长沥青路面的使用寿命,降低沥青路面大修的养护成本,需要严格控制好沥青路面的空隙率。从孔隙率对沥青路面老化、路面车辙、疲劳耐久性以及路面水损坏四个方面的影响研究了合理空隙率的选择。
The porosity of asphalt pavement has a close correlation with pavement performance. The bigger porosity, the thicker road construction, the bigger friction factor, the better sliding strength, while the worse ageing process, tracking, cracking, lead to worse anti-creep, anti-freeze and anti-water damage. Therefore, to increase the asphalt pavement quality, prolong the asphalt pavement service life, decrease the asphalt pavement maintenance cost, strict control should be adopt to the asphalt pavement porosity.
出处
《石油沥青》
2008年第4期52-57,共6页
Petroleum Asphalt
关键词
孔隙率
构造深度
抗滑性能
车辙
耐久性
水损坏
Porosity
Texture depth
Anti--skide performance
Rutting
Durability
Water damage
