稳定土壤的性能评估,选用大米皮灰,钢渣和铁尾粉的常见废物材料
Degou Cai1, Mingzhe Ouyang1, Xinyu Bao2
1Railway Engineering Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing 100081, China.
Materials (Basel, Switzerland)
|January 25, 2025
概括
这项研究探讨了使用废物材料,如钢和铁尾粉与水泥用于土壤稳定. 这些材料显著提高了机械强度和微观结构,提供了更绿色的建筑选择.
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
- 环境工程 环境工程
背景情况:
- 土壤稳定对于基础设施发展至关重要.
- 在稳定中利用废弃材料提供了一种可持续和高性能的方法.
- 常见的废物材料包括大米灰 (RHA),钢渣 (SS) 和铁尾 (IT) 粉.
研究的目的:
- 评估水泥与RHA,SS和IT粉末的协同作用,以稳定土壤.
- 研究这些废料对稳定土壤的机械强度,水化程度和微观结构的影响.
- 提供对环保道路建设实践的见解.
主要方法:
- 使用混合RHA,SS和IT粉末的水泥制备稳定土壤样本.
- 测试机械强度,水化程度和微观结构性质.
- 对不同的废物添加剂与参考样本进行比较分析.
主要成果:
- 机械强度随着水泥含量增加而增加.
- 钢渣 (SS) 和铁尾 (IT) 粉末显著提高了机械强度,与参考标准相比增加了高达60%.
- 皮灰 (RHA) 对强度改善的影响有限.
- 微观结构分析证实,随着废物添加,水分和毛孔结构得到了改善.
结论:
- SS和IT粉是有效的添加剂,可以增强水泥稳定土壤的机械性能.
- 这些废料的使用有助于改善土壤性能和更绿色的建筑.
- 这项研究支持在环保基础设施项目中大量利用常见废物.
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