碳酸石灰粉玻璃复合物的协同性能和反应机制用于土壤稳定
Yao Zhang1,2,3, Zijie Feng1, Yangfei Wu1
1College of Civil Engineering, Xijing University, Xi'an 710123, China.
Materials (Basel, Switzerland)
|March 14, 2026
概括
碳化石灰 (CL) 和玻璃粉 (PG) 有效地稳定分散性土壤. 这种环保复合材料通过形成水泥凝来改善土壤的分散性和降低透性,提供可持续的地质技术解决方案.
科学领域:
- 地质技术工程 地质技术工程
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
背景情况:
- 工业副产品,如碳化石灰 (CL) 和粉状玻璃 (PG),为可持续的土壤稳定提供了潜力.
- 分散性土壤存在工程挑战,因为它们容易受到侵蚀和不稳定.
- 生态友好的土壤修改对于地质技术应用中的可持续发展至关重要.
研究的目的:
- 为了研究由碳化石 (CL) 和粉状玻璃 (PG) 制成的复合材料对稳定分散土壤的有效性.
- 阐明CL和PG在土壤稳定中的反应机制和协同效应.
- 确定CL和PG的最佳剂量范围,以实现所需的土壤特性.
主要方法:
- 有系统的实验计划,具有不同的CL (0.5-6.5%) 和PG (4-16%) 含量和治愈年龄 (1,7,14天).
- 使用针孔,泥球和透性测试进行宏观性质评估.
- 通过X射线衍射 (XRD) 和扫描电子显微镜 (SEM) 进行微结构和相位组合分析.
主要成果:
- 观察到一种协同效应,在CL≥2.5%和PG≥8%时达到最佳稳定.
- 通过CL (4.5-6.5%) 和PG (4-16%),在所有固化年龄实现了非分散性土壤行为.
- 透系数随着CL和PG含量增加而显著降低,降低了50%以上,CL从2.5%增加到6.5% (在16%的PG).
结论:
- CL-PG复合材料是稳定分散土壤的高效和可持续材料.
- 协同作用的机制包括离子交换和波佐兰反应,形成C-S-H和C-A-S-H凝,增强土壤结构.
- 这项研究为在地质工程中利用工业副产品提供了宝贵的理论和实践指导.
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