As an eco-friendly pavement material, waste tires rubber-modified asphalt mixtures (WRMs) have been applied in pavement engineering widely. To further improve the performance and adaptability of WRM, diatomite and basalt fibers are, respectively, added to WRM. Subsequently, the Marshall tests, the rutting tests, the low-temperature splitting tests, the freeze-thaw splitting tests, and the vibration attenuation tests are conducted to study the effect of diatomite and basalt fibers on pavement properties of WRM. Furthermore, the correlation degree between the content of diatomite, basalt fibers, asphalt, and the pavement properties of WRM is analysed by the grey correlation grade analysis (GCGA). The results show that the addition of diatomite and basalt fibers can significantly improve the pavement and vibration attenuation properties of WRM. The improvement of high-temperature permanent deformation resistance, low-temperature cracking resistance, and water damage resistance of WRM is mainly attributed to diatomite, basalt fibers, and asphalt-aggregate ratio, respectively. The improvement of the vibration attenuation of WRM by diatomite and basalt fibers is mainly attributed to the increase of waste tires rubber-modified asphalt (WRA) content caused by adding diatomite and basalt fibers.

中文翻译：

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硅藻土和玄武岩纤维对废旧轮胎橡胶改性沥青混合料路面性能和减振性能的影响

作为一种环保的路面材料，废轮胎橡胶改性的沥青混合料（WRM）已广泛应用于路面工程中。为了进一步改善WRM的性能和适应性，在WRM中分别添加了硅藻土纤维和玄武岩纤维。随后，进行了马歇尔试验，车辙试验，低温劈裂试验，冻融劈裂试验和振动衰减试验，以研究硅藻土和玄武岩纤维对WRM路面性能的影响。此外，通过灰色关联度分析（GCGA）分析了硅藻土，玄武岩纤维，沥青和WRM路面性能之间的关联度。结果表明，硅藻土和玄武岩纤维的添加可以显着改善WRM的路面和减振性能。WRM的耐高温永久变形性，耐低温龟裂性和抗水破坏性的提高主要归因于硅藻土，玄武岩纤维和沥青骨料比。硅藻土和玄武岩纤维对WRM振动衰减的改善主要归因于添加硅藻土和玄武岩纤维导致废轮胎橡胶改性沥青（WRA）含量的增加。