纤维改性复合沥青混合材料的制备及性能研究  

Study on Preparation and Properties of Fiber Modified Composite Asphalt Mixture

作　　者：马梦娜[1] 刘振华 安亚强[1] MA Meng-na;LIU Zhen-hua;AN Ya-qiang(Shaanxi Polytechnic Institute,Xianyang 712000,Shaanxi,China)

机构地区：[1]陕西工业职业技术学院,陕西咸阳712000

出　　处：《合成纤维》2023年第10期58-61,共4页Synthetic Fiber in China

基　　金：院级课题(2023YKYB-024)。

摘　　要：沥青作为施工材料具有良好的延展性、隔音等优点,但其在抗低温、高温等方面存在缺陷。选取纳米TiO2/ZnO以及玄武岩纤维作为改性剂,通过高速剪切法制备改性复合沥青混合材料,并借助于响应曲面法,确定了其油石比、纳米改性剂以及玄武岩纤维的最佳配比,有效改善了复合沥青混合材料的低温抗裂性能、抗疲劳性能及高温抗车辙性能。As a construction material,asphalt has good ductility,sound insulation and other advantages,but it has defects in low temperature,high temperature and other properties.Nano-TiO2/ZnO and basalt fiber are selected as modifiers to prepare modified composite asphalt mixture by high-speed shear method.With the help of response surface method,the optimal asphalt aggregate ratio,nano modifier and basalt fiber ratio are determined,the low temperature crack resistance,fatigue resistance and high temperature rutting resistance of the composite asphalt mixture are effectively improved.

关 键 词：纳米TiO2/ZnO 玄武岩纤维 低温抗裂 抗疲劳性能 高温抗车辙性能 

分 类 号：TU528.42[建筑科学—建筑技术科学]