不同抗剥落剂掺量的破碎卵石沥青混凝土路用性能试验

EXPERIMENT ON PAVEMENT PERFORMANCE OF CRUSHED PEBBLE ASPHALT CONCRETE WITH DIFFERENT CONTENT OF ANTI STRIPPING AGENT

作为沥青路面中的绿色建筑材料,卵石大多呈酸性且破碎后存在较多光滑面,其与沥青粘附性较差。为改善沥青与骨料粘附性,往往在实际生产中添加抗剥落剂。为探讨不同掺量抗剥落剂对破碎卵石沥青混合料路用性能的改善效果,通过对比研究不同抗剥落剂掺量下沥青胶结料以及沥青混合料的性能,确定合适的抗剥落剂掺量。结果表明:在0.4%抗剥落剂掺量时,沥青胶结料以及沥青混合料性能最优。

As green building materials in asphalt pavement,most pebbles are acidic and have more smooth surfaces after crushing,so their adhesion to asphalt is poor.In order to improve the adhesion between asphalt and aggregate,anti stripping agent is often added in actual production.In order to explore the improvement effect of different amounts of anti stripping agent on the road performance of broken pebble asphalt mixture,the appropriate amount of anti stripping agent is determined by comparing the performance of asphalt binder and asphalt mixture under different amounts of anti stripping agent.The results show that the performance of asphalt binder and asphalt mixture is the best when the content of anti stripping agent is 0.4%.