Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Dry-process direct recycled asphalt mixture and preparation method thereof
The invention discloses a dry-process direct recycled asphalt mixture and a preparation method thereof, belongs to the technical field of asphalt mixtures, and is used for solving the technical problems that waste aged asphalt cannot be recycled in a traditional asphalt mixture, and the asphalt mixture is poor in mechanical property maintenance and rutting resistance. The composite modified asphalt comprises recycled asphalt, a composite modifier and composite aggregate, and is prepared by mixing waste edible oil and aged asphalt to obtain the recycled asphalt, preparing block copolymer rubber from natural rubber NR and zinc dimethacrylate, and compounding the block copolymer rubber, nitrile rubber and luteolin-based epoxy resin to obtain the composite modifier with self-repairing and high elasticity. The inorganic powder is modified by chlorohydrocarbyl silane, so that the mechanical property of the composite aggregate is improved, and the asphalt mixture prepared by the invention has the advantages of regenerated aged asphalt, strong mechanical property and repeated rutting resistance.
本发明公开了一种干法直投再生沥青混合料及其制备方法，属于沥青混合料技术领域，用于解决传统的沥青混合料未能对废旧老化沥青再生使用，沥青混合料维持机械性能和抗车辙性差的技术问题；本发明包括再生沥青、复合改性剂和复合集料，是通过废食用油和老化沥青混合，得到再生沥青，天然橡胶NR和二甲基丙烯酸锌制备嵌段共聚橡胶，嵌段共聚橡胶、丁腈橡胶和木犀草素基环氧树脂复合，得到具有自修复、高弹性的复合改性剂，无机粉料是采用氯烃基硅烷改性，提高复合集料的机械性能，本发明中制备的沥青混合料具有再生老化沥青、机械性能强和能反复抗车辙的优点。
Dry-process direct recycled asphalt mixture and preparation method thereof
The invention discloses a dry-process direct recycled asphalt mixture and a preparation method thereof, belongs to the technical field of asphalt mixtures, and is used for solving the technical problems that waste aged asphalt cannot be recycled in a traditional asphalt mixture, and the asphalt mixture is poor in mechanical property maintenance and rutting resistance. The composite modified asphalt comprises recycled asphalt, a composite modifier and composite aggregate, and is prepared by mixing waste edible oil and aged asphalt to obtain the recycled asphalt, preparing block copolymer rubber from natural rubber NR and zinc dimethacrylate, and compounding the block copolymer rubber, nitrile rubber and luteolin-based epoxy resin to obtain the composite modifier with self-repairing and high elasticity. The inorganic powder is modified by chlorohydrocarbyl silane, so that the mechanical property of the composite aggregate is improved, and the asphalt mixture prepared by the invention has the advantages of regenerated aged asphalt, strong mechanical property and repeated rutting resistance.
本发明公开了一种干法直投再生沥青混合料及其制备方法，属于沥青混合料技术领域，用于解决传统的沥青混合料未能对废旧老化沥青再生使用，沥青混合料维持机械性能和抗车辙性差的技术问题；本发明包括再生沥青、复合改性剂和复合集料，是通过废食用油和老化沥青混合，得到再生沥青，天然橡胶NR和二甲基丙烯酸锌制备嵌段共聚橡胶，嵌段共聚橡胶、丁腈橡胶和木犀草素基环氧树脂复合，得到具有自修复、高弹性的复合改性剂，无机粉料是采用氯烃基硅烷改性，提高复合集料的机械性能，本发明中制备的沥青混合料具有再生老化沥青、机械性能强和能反复抗车辙的优点。
Dry-process direct recycled asphalt mixture and preparation method thereof
一种干法直投再生沥青混合料及其制备方法
XU SITIAN (Autor:in) / LI XIAOCUN (Autor:in) / YIN QI (Autor:in) / HUANG MAN (Autor:in) / XU WENKUI (Autor:in) / DUAN DEZHAN (Autor:in)
15.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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