钢桥面铺装体系材料选型与设计

Material Selection and Design of Steel Deck Pavement System

摘要:

本研究梳理了国内常见的钢桥面铺装体系材料。结合铺装材料的配合比设计及性能试验，研究分析了典型铺装材料的高温稳定性能、抗疲劳开裂性能和粘结层应用性能。以期为钢桥面铺装材料的选型与设计提出适合的试验方法，为钢桥面铺装材料研究提供理论指导依据。

Abstract:

Combined with the mix design and performance test of pavement materials, the high temperature stability, fatigue cracking performance and the bonding layer application of the typical pavement materials are studied and analyzed. The result shows that the epoxy asphalt mixture EA has the better anti-rut features. Its 60℃ final rut depth is about 30% of asphalt mastic macadam mixture. The 70℃ final rut depth is only about 25% of SMA. For SMA, a critical strain level should be considered during the design of pavement. Its practical strain level is properly controlled lower than this critical value during the structural design. The optimum bonding material dosage makes the bonding strength among layers maximum. The optimum dosages of the pull-out test and the oblique shear test are same, and two testing results are same.