多胺活性剂对沥青抗剥落效力研究

Studies on Asphalt Antistripping Effectiveness of Polyamine Activator

研究了SBS对石油沥青的改性及多胺活性剂aa对沥青的抗剥落效力。用水煮法对水浸石料颗粒与干燥石料颗粒与基质沥青或改性沥青的粘附性能分别进行了考查,SBS改性沥青材料添加0.3%aa后裹覆干燥石料颗粒,耐水煮时间延长9 min以上;添加0.3%aa的基质沥青材料裹覆浸水石料颗粒的耐水煮时间与不添加aa的基质沥青材料裹覆干燥石料颗粒的耐水煮时间相同。

Asphalt modified by SBS and antistripping effectiveness of asphalt contained a polyamine(aa) were studied.The dry rocks grain and wet rocks grain were coated with asphalt respectively,and then soaked in hot water(near boiling)for minutes to evaluate which asphalt were more adhesion.The SBS asphalt contained 0.3% aa had hot water tolerance 9 minute more than SBS asphalt without aa.The wet rocks grains were coated with base asphalt contained 0.3% aa had hot water tolerance similar in the dry rocks grain were coated with base asphalt.