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气温较低时沥青混凝土路面往往难以压实。本文对Sasobit改性沥青的各项性能,尤其对粘度特性和变温击实马歇尔试验进行了分析,认为该添加剂可以提高沥青的各项性能,并且可以降低沥青135℃粘度,同时提高60℃粘度,具有很好的低温施工性,最后通过低温成型的沥青混合料试件进行路用性能验证,结果表明Sasobit改性沥青混合料具有较好的低温施工性能。
Asphalt pavements tend to be difficult to compact at lower temperatures. In this paper, the properties of Sasobit modified asphalt, especially the viscosity characteristics and the real-time compaction Marshall test are analyzed. The results show that the additive can improve the performance of asphalt, reduce the viscosity of asphalt at 135 ℃, increase the viscosity of asphalt at 60 ℃, Has good low temperature workability, and finally passes the low temperature forming asphalt mixture specimen for road performance verification. The results show that Sasobit modified asphalt mixture has good low temperature construction performance.