摘要
【目的】探寻5U北美岩沥青的微观性能,为实际应用提供科学依据。【方法】利用E-M-D法,分析东莞东交70号沥青、东莞东交70号沥青+12%5U北美岩沥青(Ⅰ)、东莞东交70号沥青+15%5U北美岩沥青(Ⅱ)、东莞东交70号沥青+18%5U北美岩沥青(Ⅲ)的特征官能团。【结果】东莞东交70号沥青的芳碳率最低,而且随着5U北美岩沥青含量的增加,芳碳率逐渐上升。东莞东交70号沥青摩尔比(H/C)最大,其次是东莞东交70号沥青+12%5U北美岩沥青。【结论】随着5U北美岩沥青掺量的提高,沥青改性后的高温稳定性能提高;降低温度敏感性,对沥青耐低温性能无改善作用。
【Objective】The microscopic properties of 5U North American rock asphalt was explored in order to provide scientific basis for practical application.【Methods】The E-M-D method was used to analyze the characteristic functional groups of Dongguan Dongjiao-70 asphalt,Dongguan Dongjiao-70 asphalt +12% 5U North American rock asphalt(Ⅰ),Dongguan Dongjiao-70asphalt+15% 5U North American rock asphalt(Ⅱ)and Dongguan Dongjiao-70asphalt+18% 5U North American rock asphalt(Ⅲ).【Results】Aromatic carbon rate was the lowest in Dongguan Dongjiao-70 asphalt,and increased gradually with the augmentation of rock asphalt content.The H/C molar ratio of Dongguan Dongjiao-70 asphalt was the largest,followed by that of Dongguan Dongjiao-70+12% 5U North American rock asphalt.【Conclusion】With the increase in the content of5 U North American rock asphalt,the high temperature stability of modified asphalt was improved,and the temperature sensitivity was reduced,but the low temperature resistant was not improved.
出处
《广西科学》
CAS
2015年第1期83-86,共4页
Guangxi Sciences
基金
广西石化资源加工及强化技术重点实验室开放基金项目(2013K010)
广西大学"大学生创新创业训练计划"项目(201409)资助
