关联度分析法在纳米改性沥青中的应用

Application of the Relation Degree Analysis in Nano-modification Asphalt

采用关联度分析法研究了两种纳米材料14131和14132的质量分数与改性沥青性能之间的关系。结果表明两种纳米材料对沥青的性能都有不同程度的改善，其中沥青性能与纳米材料14132的关联度普遍比纳米材料14131的关联度高，而纳米材料14132的加入与改性沥青5℃延度的关联度最高，与沥青25℃针入度及软化点的关联度较高，这表明纳米材料的加入显著改善了沥青的高温稳定性和低温抗裂性。分析的结果说明，纳米材料14132对沥青性能的改善优于纳米材料14131，进而可以为纳米材料改性沥青的制备工艺提供理论依据。

The relationship between the doping of each nanometer material 14131 and 14132 and properties of modified asphalt is studied with the relation degree analysis. The result demonstrates that the properties of asphalt are improved differently by adding in each kinds of nanometer materials. At the same time＇ the relation degree between the properties of asphalt and nanometer material 14132 is higher than that of nanometer material 14131. Furthermore, the doping ofnanometer material 14132 has a very high relation degree with the ductility of modified asphalt at 5℃, and has relative high relation degrees with penetration at 25℃ and softening point of modified asphalt, which reflects the properties of stability at high-temperature and anti-crack at low-temperature of asphalt is significantly improved with the doping of nanometer material. The analyzing results indicte the properties of modified asphalt by adding in nanometer material 14132 is better than that of nanometer material 14131 which would provide the theoretical basis for the preparation technique ofnanometer material modified asphalt.