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A platform for research: civil engineering, architecture and urbanism
Modified basalt fiber bundle suitable for asphalt mixture as well as preparation method and application of modified basalt fiber bundle
The invention discloses a preparation method of a modified basalt fiber bundle suitable for an asphalt mixture, and is characterized in that the method comprises the following steps: coating molten solid waste plastics on the surface of the basalt fiber bundle, heating the coated basalt fiber bundle, evaporating moisture, and drying to obtain the modified basalt fiber bundle. The novel basalt fiber bundle modified basalt fiber bundle suitable for the asphalt mixture is obtained. The prepared modified basalt fiber bundle has good compatibility with asphalt, after the basalt fiber bundle encounters high-temperature asphalt, polyethylene wrapping the basalt fiber bundle can be heated to become a molten state, and the molten polyethylene can form a network-shaped structure, so that movement of asphalt molecules is restrained, and therefore, the modified basalt fiber bundle can be used for resisting high-temperature asphalt. According to the invention, the basalt fibers are added into the asphalt, the viscoelasticity of the asphalt is increased, so that the temperature sensing characteristic of the asphalt is reduced, and meanwhile, the basalt fibers also can enhance the viscosity and reinforcement bridging effect between the asphalt and have reinforcing and toughening effects on an asphalt mixture, so that the rutting resistance and the low-temperature crack resistance of an asphalt pavement paved by utilizing the modified basalt fibers are greatly improved.
本发明公开了一种适用于沥青混合料的改性玄武岩纤维束的制备方法，其特征在于，所述方法包括：将熔融的固废塑料涂覆在玄武岩纤维束的表面，对涂覆后的玄武岩纤维束进行加热，蒸发水分，即得到适用于沥青混合料的改性新型的玄武岩纤维束改性玄武岩纤维束。本发明制备的改性玄武岩纤维束与沥青具有良好的相容性，那个玄武岩纤维束遇到高温的沥青后，包裹在玄武岩纤维束外的聚乙烯会受热变成熔融的状态，熔融态的聚乙烯能形成网络状的结构，从而约束沥青分子的移动，增加了沥青的黏弹性，从而降低了其感温特性，同时，玄武岩纤维也会增强沥青之间的粘性、加筋桥连效应，对沥青混合料起到增强、增韧效果，因此利用改性的玄武岩纤维摊铺的沥青路面其抗车辙性能、低温抗裂性能均有大幅度提高。
Modified basalt fiber bundle suitable for asphalt mixture as well as preparation method and application of modified basalt fiber bundle
The invention discloses a preparation method of a modified basalt fiber bundle suitable for an asphalt mixture, and is characterized in that the method comprises the following steps: coating molten solid waste plastics on the surface of the basalt fiber bundle, heating the coated basalt fiber bundle, evaporating moisture, and drying to obtain the modified basalt fiber bundle. The novel basalt fiber bundle modified basalt fiber bundle suitable for the asphalt mixture is obtained. The prepared modified basalt fiber bundle has good compatibility with asphalt, after the basalt fiber bundle encounters high-temperature asphalt, polyethylene wrapping the basalt fiber bundle can be heated to become a molten state, and the molten polyethylene can form a network-shaped structure, so that movement of asphalt molecules is restrained, and therefore, the modified basalt fiber bundle can be used for resisting high-temperature asphalt. According to the invention, the basalt fibers are added into the asphalt, the viscoelasticity of the asphalt is increased, so that the temperature sensing characteristic of the asphalt is reduced, and meanwhile, the basalt fibers also can enhance the viscosity and reinforcement bridging effect between the asphalt and have reinforcing and toughening effects on an asphalt mixture, so that the rutting resistance and the low-temperature crack resistance of an asphalt pavement paved by utilizing the modified basalt fibers are greatly improved.
本发明公开了一种适用于沥青混合料的改性玄武岩纤维束的制备方法，其特征在于，所述方法包括：将熔融的固废塑料涂覆在玄武岩纤维束的表面，对涂覆后的玄武岩纤维束进行加热，蒸发水分，即得到适用于沥青混合料的改性新型的玄武岩纤维束改性玄武岩纤维束。本发明制备的改性玄武岩纤维束与沥青具有良好的相容性，那个玄武岩纤维束遇到高温的沥青后，包裹在玄武岩纤维束外的聚乙烯会受热变成熔融的状态，熔融态的聚乙烯能形成网络状的结构，从而约束沥青分子的移动，增加了沥青的黏弹性，从而降低了其感温特性，同时，玄武岩纤维也会增强沥青之间的粘性、加筋桥连效应，对沥青混合料起到增强、增韧效果，因此利用改性的玄武岩纤维摊铺的沥青路面其抗车辙性能、低温抗裂性能均有大幅度提高。
Modified basalt fiber bundle suitable for asphalt mixture as well as preparation method and application of modified basalt fiber bundle
一种适用于沥青混合料的改性玄武岩纤维束及其制备方法与其应用
HU XIANGKAI (author) / GUO MENGTAO (author) / LI ZIYUN (author) / LI YUNFU (author) / SUN ZHONGYAO (author) / LI SUFANG (author) / ZHANG QIAO (author) / JIANG YUNPENG (author) / ZHANG XUFENG (author) / XIONG KUN (author)
2023-10-03
Patent
Electronic Resource
Chinese
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