乙乙酸乙烯和废料对青混凝土性能的影响
Saltanat Ashimova1, Gulzat Aitkaliyeva2, Nesipkhan Bektenov1
1Faculty of Natural Science and Geography, Abai Kazakh National Pedagogical University, Almaty, Kazakhstan.
Frontiers in chemistry
|January 23, 2026
概括
这项研究使用乙烯乙酸乙烯 (EVA) 和碎提高了青混凝土的性能. 埃瓦显著提高了热稳定性和强度,而碎提高了耐水性,支持可持续的道路建设.
科学领域:
- 材料科学与工程 材料科学与工程
- 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:
- 传统的青性能受到交通负载和气候的限制,需要增强的结合剂.
- 聚合物材料,如乙烯乙酸乙烯 (EVA) 和碎被探索为青修饰剂.
- 解决热不稳定性和老化等局限性对于耐用青混凝土至关重要.
研究的目的:
- 研究EVA颗粒和碎废弃物作为修饰剂对青混凝土性能的影响.
- 评估改性青混凝土的物理,机械和化学性能改进.
- 评估使用这些废弃物衍生的聚合物添加剂的经济可行性和可持续性.
主要方法:
- 青混凝土混合物与EVA和粉碎的实验室制备,剂量为20%和25%.
- 评估关键性能指标:压力强度,水和度,耐湿度,抗裂纹,剪切稳定性和深度.
- 使用富里埃变换红外光谱法 (FTIR) 进行化学表征.
主要成果:
- 埃瓦显著提高了热稳定性,在0°C时增加了两倍的裂纹阻力 (6.9MPa),并增加了压力强度 (2.2MPa).
- 经过EVA修改,车道深度降低了85% (0.77毫米),提高了车道阻力.
- 碎提高了耐水性 (2.4%的水和度),并且在抗变形方面提供了适度的收益;FTIR证实了这两种修饰剂的明显化学相互作用.
结论:
- 埃瓦颗粒提供了卓越的性能增强,特别是在热稳定性和机械强度方面,这使得它们成为一个具有成本效益的修饰剂.
- 粉碎在耐水性方面提供了好处,并通过利用废物材料支持可持续发展目标.
- 通过将工业废物重新用于青混凝土应用,EVA和碎都为环境可持续性做出了贡献.
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