增强含有环氧聚合物和100%再生青路面混合物的同质性
Jun Yang1, Xingyu Yi1, Huimin Chen1
1School of Transportation, Southeast University, Nanjing 210096, China.
Polymers
|November 14, 2023
概括
环氧聚合物 (EP) 和回收青路面 (RAP) 混合物 (ERAM) 显示出更好的均性,具有优化的混合温度和RAP分级. 调整RAP分级有效地减轻了对聚合物分布的老化影响,提高了路面材料的性能.
科学领域:
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
- 聚合物科学 聚合物科学
背景情况:
- 使用再生青路面 (RAP) 可以降低环氧聚合物 (EP) 路面的成本.
- 提高EP回收青混合物 (ERAM) 的同质性对于生产至关重要.
- 了解微和中等尺度的特性是优化ERAM的关键.
研究的目的:
- 提高ERAMs的微和中等规模的同质性.
- 为优化ERAM生产流程提供参考.
- 调查混合温度和RAP分级对ERAM属性的影响.
主要方法:
- 微尺度表征使用纳米沉积试验EP和老青杆扩散.
- 使用CTX射线扫描和MATLAB进行介面尺度分析,以获得总体分布.
- 评估混合温度效应 (160°C与180°C) 和RAP分级调整.
主要成果:
- 混合温度显著影响EP-青杆的扩散和混合区宽度.
- 在聚合分散中,ERAM显示的垂直均性大于水平均性.
- 调整RAP分级可以减少水平变化,并改善垂直细聚合物的分布.
- 短期老化增加了分布变异性,但RAP分级调整减轻了这些影响.
结论:
- 优化的混合温度 (例如180°C) 和RAP分级对于ERAM的一致性至关重要.
- RAP分级调整是一种有效的策略,可以改善总体分布并减轻老化影响.
- 结果为同质ERAM的工业生产提供了有价值的参考.
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