环氧回收青和混合物的综合性能评估
Junhao Tian1, Dedong Guo1, Qi Xu1
1School of Transportation Civil Engineering, Shandong Jiaotong University, Ji'nan 250357, China.
Materials (Basel, Switzerland)
|March 13, 2025
概括
这项研究使用环氧回收粘合剂 (ERB) 和环氧回收混合物 (ERM) 提高了回收青路面 (RAP) 的性能. 环氧系统显著改善了质性质和道路性能,特别是耐疲劳性.
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.
- 聚合物化学 聚合物化学
背景情况:
- 使用再生青路面 (RAP) 对于可持续建筑至关重要.
- 提高回收青混合物的性能仍然是一个挑战.
- 环氧青具有提高粘合剂性能的潜力.
研究的目的:
- 准备和评估环氧循环粘合剂 (ERB) 和环氧循环混合物 (ERM).
- 为了研究环氧系统对再生青的风学和道路性能的影响.
- 量化环氧剂量与性能指标之间的相关性.
主要方法:
- 用不同的环氧青剂量制备ERB和ERM.
- 使用动态剪切风湿计 (DSR) 和曲束风湿计 (BBR) 进行ERB的风湿学分析.
- ERM的道路性能测试,包括曲,曲,疲劳和解耐受性.
- 使用光显微镜 (FM) 进行微结构分析.
- 灰色关系分析 (GRA) 用于相关性分析.
主要成果:
- 添加环氧系统显著改善了ERB的高 (458.3%) 和低温 (97.9%) 性能.
- 与SBS改性混合物相比,ERM在高温 (220.4%) 和疲劳 (80.5%) 上表现更好.
- ERM的动态模量与环氧系统剂量正相关.
- GRA确定疲劳性能对环氧系统剂量最敏感.
结论:
- 环氧青有效地提高了回收青混合物的风学和道路性能.
- 环氧系统提供了一个可行的解决方案,用于提高RAP在高性能青路面的利用率.
- 优化环氧系统剂量是最大化回收青疲劳性能的关键.
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