TiO2-GO-SMS-修改土壤复合材料的增强抗水性,用于作为土壤站点的修复材料
Wei Li1,2, Wenbo Bao2, Zhiqiang Huang2
1School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China.
Materials (Basel, Switzerland)
|September 28, 2024
概括
这项研究增强了石膏改性土壤.
科学领域:
- 材料科学 材料科学 材料科学
- 地质技术工程 地质技术工程
- 土木工程 土木工程是指土木工程.
背景情况:
- 由于侵蚀和水的吸收,土壤站点面临着稳定性问题.
- 石膏改性土壤具有良好的机械性能,但耐水性较差.
- 改善改造土壤的耐用性对于遗产保护和建设至关重要.
研究的目的:
- 为了提高石膏改性土壤的防水性能和机械稳定性.
- 研究复合材料改性土壤的微观结构演变和机械特性.
- 为了确定甲酸盐 (SMS),二氧化 (TiO2) 和石墨烯氧化物 (GO) 作为添加剂的有效性.
主要方法:
- 用SMS,TiO2和GO修饰石膏改性土壤的复合修饰.
- 使用X射线衍射 (XRD),扫描电子显微镜 (SEM) 和能量分散式X射线光谱 (EDS) 的微结构分析.
- 机械性能测试,包括浸泡前后的水侵蚀,未受限制的压缩 (UCS) 和未结合的未排水 (UU) 三轴压缩测试.
主要成果:
- 添加SMS,TiO2和GO并没有改变土壤的晶体结构或成分.
- TiO2和GO均分布,增强了结构填充和稳定.
- 复合材料改性土壤的吸水率为0.84%,沉浸后保留了93.1%的压力强度和96.7%的剪切强度.
结论:
- 复合材料修改有效地提高了石膏改性土壤的防水性能和机械稳定性.
- 在提高土壤耐用性方面,SMS,TiO2和GO发挥着协同作用.
- 开发的复合材料改性土壤是改善土壤站点稳定的可行材料.
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