使用活性渣作为高性能稳定土壤的环保剂
Qinghua Huang1, Guohui Yang1, Chenzhi Li2
1College of Mechanics and Materials, Hohai University, Nanjing 210098, China.
Materials (Basel, Switzerland)
|July 14, 2023
概括
活性渣 (AAS) 为土壤稳定提供了水泥的可持续替代方案. 这项研究表明,与水泥稳定土壤 (CSS) 相比,活性渣稳定土壤 (AASS) 的强度和耐久性优越.
科学领域:
- 建筑材料科学 建筑材料科学
- 地质技术工程 地质技术工程
- 环境工程 环境工程
背景情况:
- 排放的废渣带来了处置挑战和环境问题.
- 活性废渣 (AAS) 为传统水泥提供了一个可持续的替代品.
- 利用工业废物与绿色建筑和低碳发展保持一致.
研究的目的:
- 评估活性渣稳定土壤 (AASS) 作为土壤稳定剂的性能.
- 为了比较AASS属性与水泥稳定土壤 (CSS).
- 评估AAS在建筑垃圾利用和碳减排方面的可行性.
主要方法:
- 进行了压力强度,水透性,化物迁移和硫酸盐耐受性测试.
- 通过X射线衍射 (XRD) 分析了水合结晶相.
- 电化学阻抗光谱 (EIS) 和侵入孔径测量 (MIP) 检查了微观孔隙结构.
主要成果:
- AASS显示了比CSS更高的压力强度.
- AASS 显示了较低的水透率和化物迁移系数.
- AASS显示对硫酸盐攻击的抗性增强,最佳剂量超过10%的重量.
- 最低价格标准分析显示,添加AAS可以将土壤多孔性降低6.47%.
结论:
- 活性渣是一种可行的和可持续的材料,用于土壤稳定.
- 与CSS相比,AASS提供了改进的工程性能和环境优势.
- 这种方法支持工业废物利用和建筑业的碳排放减少,有助于实现碳中和目标.
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