A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-modulus asphalt concrete and preparation method thereof
The invention discloses a preparation method of high-modulus asphalt concrete, which comprises the following steps: S1, weighing a certain amount of artificial aggregate with a core-shell structure, adding the artificial aggregate into aggregate, heating, and putting the heated mixture into a preheated mixing pot for dry mixing; s2, spraying asphalt and an organic viscosity-reducing warm mixing additive into the mixing pot in the step S1, and mixing with the preheated mixture; s3, pausing mixing, pouring the admixture, the fiber, the nano filler, the rubber powder and the water, and continuously mixing until the mixture is uniform, so as to obtain the asphalt concrete. The dynamic modulus of the high-modulus asphalt concrete prepared by the invention is up to 9000-12000 MPa, the high-modulus asphalt concrete not only has excellent rutting resistance and fatigue resistance, but also has optimized construction performance and environmental adaptability, and meanwhile, resource recycling of wastes is realized; therefore, the requirements of modern road engineering on high-performance, sustainable and environment-friendly paving materials are met.
本发明公开了一种高模量沥青混凝土的制备方法，其包括以下步骤：S1：称取一定量具有核壳结构的人造骨料添加入集料中并进行加热，将加热好的混合料放入预热后的拌和锅进行干拌；S2：将沥青和有机降黏型温拌添加剂喷入步骤S1的拌和锅内与预热的混合料进行拌和；S3：暂停拌和，倒入外掺剂、纤维、纳米填料、橡胶粉和水，继续拌和至混合料均匀为止，得到所述沥青混凝土。本发明制备得到的高模量沥青混凝土，其动态模量高达9000～12000MPa，不仅具有优异的抗车辙性和抗疲劳性，而且具有优化的施工性能和环境适应性，同时实现了废弃物资源化回收利用，从而满足了现代道路工程对高性能、可持续和环保型铺装材料的需求。
High-modulus asphalt concrete and preparation method thereof
The invention discloses a preparation method of high-modulus asphalt concrete, which comprises the following steps: S1, weighing a certain amount of artificial aggregate with a core-shell structure, adding the artificial aggregate into aggregate, heating, and putting the heated mixture into a preheated mixing pot for dry mixing; s2, spraying asphalt and an organic viscosity-reducing warm mixing additive into the mixing pot in the step S1, and mixing with the preheated mixture; s3, pausing mixing, pouring the admixture, the fiber, the nano filler, the rubber powder and the water, and continuously mixing until the mixture is uniform, so as to obtain the asphalt concrete. The dynamic modulus of the high-modulus asphalt concrete prepared by the invention is up to 9000-12000 MPa, the high-modulus asphalt concrete not only has excellent rutting resistance and fatigue resistance, but also has optimized construction performance and environmental adaptability, and meanwhile, resource recycling of wastes is realized; therefore, the requirements of modern road engineering on high-performance, sustainable and environment-friendly paving materials are met.
本发明公开了一种高模量沥青混凝土的制备方法，其包括以下步骤：S1：称取一定量具有核壳结构的人造骨料添加入集料中并进行加热，将加热好的混合料放入预热后的拌和锅进行干拌；S2：将沥青和有机降黏型温拌添加剂喷入步骤S1的拌和锅内与预热的混合料进行拌和；S3：暂停拌和，倒入外掺剂、纤维、纳米填料、橡胶粉和水，继续拌和至混合料均匀为止，得到所述沥青混凝土。本发明制备得到的高模量沥青混凝土，其动态模量高达9000～12000MPa，不仅具有优异的抗车辙性和抗疲劳性，而且具有优化的施工性能和环境适应性，同时实现了废弃物资源化回收利用，从而满足了现代道路工程对高性能、可持续和环保型铺装材料的需求。
High-modulus asphalt concrete and preparation method thereof
一种高模量沥青混凝土及其制备方法
TIAN PEIJUN (author) / XU YONG (author) / LI DAOJIE (author) / ZHOU YONG (author) / ZHANG WEIZHAO (author)
2024-10-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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