A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Normal-temperature recycled asphalt mixture with high RAP mixing amount and preparation method of normal-temperature recycled asphalt mixture
The invention provides a normal-temperature recycled asphalt mixture with high RAP doping amount and a preparation method thereof, and belongs to the technical field of recycled asphalt mixtures. The preparation method comprises the following steps: firstly, mixing SMC with a dispersing agent, a coupling agent and a reinforcing agent to prepare an SMC normal-temperature asphalt regenerant, and then mixing the SMC normal-temperature asphalt regenerant with matrix asphalt, a waste asphalt reclaimed material, coarse aggregate and mineral powder to prepare the normal-temperature regenerated asphalt mixture. According to the invention, the mixing amount of RAP in the normal-temperature regenerated asphalt mixture is obviously increased, the softening point of asphalt is reduced, the needle penetration and ductility are increased, and the normal-temperature regenerant can greatly reduce the high-temperature viscosity of asphalt and has a good warm mixing effect.
本发明提供了一种高RAP掺量的常温再生沥青混合料及其制备方法，属于再生沥青混合料技术领域。本发明首先将SMC和分散剂、偶联剂、增强剂混合制备SMC常温沥青再生剂，然后将其与基质沥青、废旧沥青回收料、粗集料和矿粉混合制备常温再生沥青混合料。本发明明显提高了常温再生沥青混合料中RAP的掺量，降低了沥青的软化点，增加了针入度和延度，且常温再生剂能够大幅度降低沥青的高温粘度，具有良好的温拌效果。
Normal-temperature recycled asphalt mixture with high RAP mixing amount and preparation method of normal-temperature recycled asphalt mixture
The invention provides a normal-temperature recycled asphalt mixture with high RAP doping amount and a preparation method thereof, and belongs to the technical field of recycled asphalt mixtures. The preparation method comprises the following steps: firstly, mixing SMC with a dispersing agent, a coupling agent and a reinforcing agent to prepare an SMC normal-temperature asphalt regenerant, and then mixing the SMC normal-temperature asphalt regenerant with matrix asphalt, a waste asphalt reclaimed material, coarse aggregate and mineral powder to prepare the normal-temperature regenerated asphalt mixture. According to the invention, the mixing amount of RAP in the normal-temperature regenerated asphalt mixture is obviously increased, the softening point of asphalt is reduced, the needle penetration and ductility are increased, and the normal-temperature regenerant can greatly reduce the high-temperature viscosity of asphalt and has a good warm mixing effect.
本发明提供了一种高RAP掺量的常温再生沥青混合料及其制备方法，属于再生沥青混合料技术领域。本发明首先将SMC和分散剂、偶联剂、增强剂混合制备SMC常温沥青再生剂，然后将其与基质沥青、废旧沥青回收料、粗集料和矿粉混合制备常温再生沥青混合料。本发明明显提高了常温再生沥青混合料中RAP的掺量，降低了沥青的软化点，增加了针入度和延度，且常温再生剂能够大幅度降低沥青的高温粘度，具有良好的温拌效果。
Normal-temperature recycled asphalt mixture with high RAP mixing amount and preparation method of normal-temperature recycled asphalt mixture
一种高RAP掺量的常温再生沥青混合料及其制备方法
REN TIEYUE (author) / LIU YONGZHI (author) / TIAN GUOXUAN (author) / MENG ZHIQING (author)
2024-04-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024
| European Patent Office | 2024
RECYCLED ASPHALT MIXTURE MANUFACTURING METHOD AND RECYCLED ASPHALT MIXTURE
| European Patent Office | 2020