The decline in properties of asphalt due to thermal-oxidative aging and photo-oxidative aging seriously affects the service life of pavement. Multi-dimensional nanomaterials composed by organic expanded vermiculite (OEVMT) and surface modified nanoparticles (nano-ZnO, nano-SiO₂ or nano-TiO₂) as an anti-aging composite modifier was used to improve anti-aging behavior of asphalt. The aging methods included thin film oven test (TFOT), pressure aging vessel (PAV) test and ultraviolet (UV) aging. The aging behavior and mechanism of asphalt were investigated by Peak force quantitative nanomechanical mode (PFQNM), a kind of Atomic force microscope (AFM) modes that can measure the topography, roughness, adhesion and Young’s modulus simultaneously. AFM PFQNM results show that bee-like structure is destroyed, and the dispersed phase dramatically changes after adding modifiers, while the number of bee-like structures of modified asphalt is increased after TFOT aging. Compared with the control group, increased roughness and adhesion and reduced Young’s modulus of modified asphalt prove that multi-dimensional nanomaterials could prevent asphalt aging effectively. Among the three modifiers, OEVMT + nano-ZnO shows the better improvement in aging resistance of asphalt by displaying lower Young’s modulus and higher adhesion values than OEVMT + nano-TiO₂ and OEVMT + nano-SiO₂, and nano-ZnO possesses the best compatibility with asphalt among three types of inorganic particles. In addition, there is a strong correlation between adhesion and Young's modulus, and its correlation coefficient is −0.87. Furthermore, the correlation degree between microstructure and physical parameters is investigated by grey relational analysis. It is proved that the microstructure can be used for the characterization of asphalt performance.

由于热氧化老化和光氧化老化引起的沥青性能下降严重影响了路面的使用寿命。由有机膨胀ver石（OEVMT）和表面改性的纳米颗粒（纳米ZnO，纳米SiO ₂或纳米TiO ₂组成）的多维纳米材料）作为抗老化复合改性剂用于改善沥青的抗老化性能。老化方法包括薄膜烘箱测试（TFOT），压力老化容器（PAV）测试和紫外线（UV）老化。利用峰值力定量纳米力学模式（PFQNM）研究了沥青的老化行为和机理。PFQNM是一种可以同时测量形貌，粗糙度，附着力和杨氏模量的原子力显微镜（AFM）模式。AFM PFQNM结果表明，添加改性剂后，蜂样结构被破坏，分散相急剧变化，而TFOT老化后改性沥青的蜂样结构数量增加。与对照组相比，改性沥青的增加的粗糙度和附着力以及降低的杨氏模量证明了多维纳米材料可以有效地防止沥青老化。在这三种改性剂中，OEVMT +纳米ZnO比OEVMT +纳米TiO表现出更低的杨氏模量和更高的附着力，从而更好地改善了沥青的耐老化性₂和OEVMT +纳米SiO ₂，而纳米ZnO与沥青在三种类型的无机颗粒中具有最佳的相容性。另外，粘附力与杨氏模量之间具有很强的相关性，其相关系数为-0.87。此外，通过灰色关联分析研究了微观结构与物理参数之间的相关程度。证明了该微观结构可用于表征沥青性能。