关于SBR改性青乳液与回收青路面的微表面特性研究
Di Yu1, Junchi Luo1, Huan Lang2
1School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, China.
Materials (Basel, Switzerland)
|February 26, 2025
概括
这项研究探讨了在微型表面上使用过多的精细回收青路面 (RAP). 可以将高达40%的RAP纳入,提高滑动阻力,降低17%的成本,但是关键的限制.
科学领域:
- 土木工程 土木工程是指土木工程.
- 材料科学 材料科学 材料科学
- 可持续建筑 可持续建筑
背景情况:
- 由于技术进步,提高了精细回收青路面 (RAP) 的生产量.
- 在微表面技术中,过度细的RAP的有限大规模应用是一个挑战.
研究的目的:
- 研究将再生青路面 (RAP) 纳入微表面混合物的可行性和影响.
- 开发和验证含RAP微表面的混合设计过程.
- 评估在微表面上使用RAP的性能和经济效益.
主要方法:
- 提出了一种混合设计工艺,用于含RAP的微表面.
- 检查了六种不同的RAP含量,SBR乳化青和添加水的影响.
- 评估了路面的性能,使用了形变形率,湿轮磨损和英国摆形测试.
- 从建筑的角度进行经济分析.
主要成果:
- 优化的混合设计过程对含有RAP的微表面有效.
- 添加RAP减少了青的需求和混合时间;增加的水提高了可加工性,但降低了早期强度.
- 随着RAP含量 (最大14.9%) 的增加,滑行阻力增加;滑行变形率增加,将RAP限制在40%.
- 防水损坏的阻力有所不同,但是主要的限制.
结论:
- 拟议的混合设计有效地将RAP纳入微表面.
- 最大RAP含量仅限40%由于较弱的聚合和化的担忧.
- 整合40%的RAP可提供显著的成本节约 (约. 17%) 并提高了滑动阻力.
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