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选择工程应用具有代表性的温拌剂,采用正交试验设计方法,研究了不同温拌剂对不同沥青结合料的粘度特性的影响规律。极差分析表明,以粘度降低效果为考核指标时,沥青的种类、温拌剂的用量和温拌剂的种类依次是影响的粘度降低幅度的主次因素;而以粘温指数为考核指标时,沥青的种类、温拌剂种类和温拌剂的用量依次是影响的沥青感温性能的主次因素。温拌沥青结合料的粘温指数受温拌剂种类的影响,即使同一种沥青,有的温拌剂可能起到正面的影响,而有的则可能是负面影响。
Select engineering application representative of warm mix agent, the use of orthogonal experimental design method to study the effect of different warm mix agent on the viscosity characteristics of different asphalt binder. The analysis of range shows that viscosity index is the primary and secondary factor affecting the viscosity reduction when viscosity index is taken as index. The types of asphalt, the amount of warm mix and the type of warm mix are the primary and secondary factors. , The type of bitumen, the type of warm mix and the amount of warm mix are the main and secondary factors that affect the bitumen temperature-sensitive properties. Temperature-mixed asphalt binder viscosity index by the type of warm mix, even with the same asphalt, some warm mix may have a positive impact, while others may have a negative impact.