-二氧化复合材料改性青混合物的准备和道路性能研究
Bo Tan1,2, Youliang Su1,2, Yuzhu Fan1,2
1College of Civil and Architecture Engineering, Guilin University of Technology, Guilin 541004, China.
Materials (Basel, Switzerland)
|December 9, 2023
概括
和二氧化复合材料修改的青显示了增强的道路性能. 22%的和4%的藻石的最佳混合物提高了青混合物的耐老化性和长期稳定性.
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.
- 化学工程是化学工程的重要组成部分.
背景情况:
- 青改造对于改善道路性能和耐用性至关重要.
- 传统的修饰剂,如和 styrene-butadiene-styrene (SBS) 有其局限性.
- 探索新的复合材料修饰剂,如和藻石,为增强青性能提供了潜力.
研究的目的:
- 为了研究和二氧化对青性能的协同作用.
- 为了确定复合材料改性青的和二氧化的最佳剂量.
- 评估改性青混合物的道路性能,耐老化性和长期稳定性.
主要方法:
- 制备各种复合材料改性青的-二氧化.
- 使用响应表面方法来优化修饰剂剂量.
- 使用富里埃变换红外光谱 (FTIR) 和扫描电子显微镜 (SEM) 的微结构分析.
- 性能评估包括马歇尔测试,轮子跟踪测试,老化测试和冷解测试.
主要成果:
- 最佳的复合材料改性青含有22%的和4%的二氧化.
- 微结构分析表明,在青基质内,修饰剂的物理混合形成了一个稳定的结构.
- 与青和-SBS青相比,二氧化改性青显示出优越的道路性能,耐老化性和长期水稳定性.
结论:
- -二氧化复合材料的修改显著提高了道路应用的青性能.
- 优化的配方为青改造提供了具有成本效益和环保的替代方案.
- 这项研究支持在道路工程中更广泛地应用酸改性青.
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