A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Water-damage-resistant recycled aggregate asphalt concrete and preparation method thereof
The invention relates to water-damage-resistant recycled aggregate asphalt concrete and a preparation method thereof. The method comprises the following steps: firstly, modifying a recycled waste PET product by utilizing triethylene tetramine, drying and crushing to obtain modified PET; then mixing the modified PET with asphalt in a molten state to obtain PET modified asphalt; and finally, mixing the recycled coarse aggregate, the natural fine aggregate, the natural mineral powder and the PET modified asphalt at high temperature according to certain gradation and asphalt-aggregate ratio to obtain the recycled aggregate asphalt concrete with excellent water damage resistance. According to the method, recycling of the waste concrete aggregate and the waste PET plastic is achieved, the problem of environmental pollution is relieved, the risk that the recycled aggregate asphalt concrete pavement is damaged by rainwater-load is greatly reduced, and the whole process has the advantages of being simple in technology, easy to industrially operate, high in resource utilization rate and the like.
本发明涉及一种抗水损的再生骨料沥青混凝土及其制备方法。首先利用三乙烯四胺对回收的废弃PET制品进行改性，干燥、粉碎后得到改性PET；接着将改性PET与处于熔融态的沥青混合，得到PET改性沥青；最后按照一定的级配和油石比将再生粗骨料、天然细骨料、天然矿粉与PET改性沥青高温拌和，得到抗水损性能优异的再生骨料沥青混凝土。本发明不仅实现了废弃混凝土骨料、废弃PET塑料的回收利用、缓解了环境污染问题，而且大幅降低了再生骨料沥青混凝土路面受雨水‑荷载破坏的风险，整个过程具有工艺简单、易工业化操作、资源利用率高等优点。
Water-damage-resistant recycled aggregate asphalt concrete and preparation method thereof
The invention relates to water-damage-resistant recycled aggregate asphalt concrete and a preparation method thereof. The method comprises the following steps: firstly, modifying a recycled waste PET product by utilizing triethylene tetramine, drying and crushing to obtain modified PET; then mixing the modified PET with asphalt in a molten state to obtain PET modified asphalt; and finally, mixing the recycled coarse aggregate, the natural fine aggregate, the natural mineral powder and the PET modified asphalt at high temperature according to certain gradation and asphalt-aggregate ratio to obtain the recycled aggregate asphalt concrete with excellent water damage resistance. According to the method, recycling of the waste concrete aggregate and the waste PET plastic is achieved, the problem of environmental pollution is relieved, the risk that the recycled aggregate asphalt concrete pavement is damaged by rainwater-load is greatly reduced, and the whole process has the advantages of being simple in technology, easy to industrially operate, high in resource utilization rate and the like.
本发明涉及一种抗水损的再生骨料沥青混凝土及其制备方法。首先利用三乙烯四胺对回收的废弃PET制品进行改性，干燥、粉碎后得到改性PET；接着将改性PET与处于熔融态的沥青混合，得到PET改性沥青；最后按照一定的级配和油石比将再生粗骨料、天然细骨料、天然矿粉与PET改性沥青高温拌和，得到抗水损性能优异的再生骨料沥青混凝土。本发明不仅实现了废弃混凝土骨料、废弃PET塑料的回收利用、缓解了环境污染问题，而且大幅降低了再生骨料沥青混凝土路面受雨水‑荷载破坏的风险，整个过程具有工艺简单、易工业化操作、资源利用率高等优点。
Water-damage-resistant recycled aggregate asphalt concrete and preparation method thereof
一种抗水损的再生骨料沥青混凝土及其制备方法
XU XIONG (author) / CHEN GUOFU (author) / LENG ZHEN (author) / CHEN RUIQI (author) / TU YANPING (author) / CHEN XUYONG (author) / WU QIAOYUN (author) / CHENG SHUKAI (author)
2021-12-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Waste asphalt pavement coarse aggregate recycled concrete and preparation method thereof
| European Patent Office | 2023
Water-damage-resistant asphalt concrete and preparation method thereof
| European Patent Office | 2022
| European Patent Office | 2023
ASPHALT MIXTURES USING RECYCLED CONCRETE AGGREGATE
| British Library Conference Proceedings | 2004
Wear-resistant recycled asphalt concrete and preparation process thereof
| European Patent Office | 2024