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中文摘要：
为提高基质沥青的路用性能,采用纳米Ⅰ作为改性剂,并选用A,B和C作为分散剂,制备了纳米改性沥青并进行路用性能评价;同时将纳米Ⅰ与SBS复合进行沥青改性,以考察纳米Ⅰ对聚合物改性沥青性能的影响。对其中的优选改性方案,进行DSR和BBR试验,进一步评价其路用性能。结果表明：纳米Ⅰ可以明显改善沥青的性能,使沥青的高温性能得以显著提高;纳米粒子的表面改性对沥青的性能有显著影响,有必要开发适用于沥青的纳米粒子表面改性方案,以充分发挥粒子的纳米效应;纳米Ⅰ对SBS改性沥青的影响表现为高、低温路用性能的全面提高。
英文摘要：
In order to improve the road performance of base asphalt, nano-I was used as amodifier, and A, B and C were separately used as dispersants to prepare nano-modified asphalt and the road performance of those asphalts was evaluated. In addition, nano-I and SBScompound modified asphalt was also prepared to study the effect of nano-I on the polymer modified asphalt. Among all types of nano-I modified asphalt, the cases with outstandingperformance were selected to conduct DSR and BBR tests to further evaluate their road performance. The results show that nano-I can significantly improve the high temperatureperformance of asphalt; surface modification of nano-I particles has a significant effect on asphalt performance, so it is necessary to develop a surface modification technology suitable forasphalt modification to realize the nano-effect completely; nano-I can further improve both the high temperature and low temperature performance of SBS modified asphalt.
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