关于多源固体废物协同作用的微观机制的研究,用于增强红色泥基填充材料的物理化学性能
Jinjing Huang1, Guochao Yan1, Shaoqi Kong1
1School of Mining Engineering, Taiyuan University of Technology, Taiyuan 030024, China.
Materials (Basel, Switzerland)
|May 7, 2025
概括
这项研究提高了使用工业固体废物的红泥 (RM) 填充材料. 脱硫石膏 (DG) 显著提高了压力强度和改进了微观结构,为矿山填充提供了可持续的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境工程 环境工程
- 地质技术工程 地质技术工程
背景情况:
- 红色泥 (RM) 面临挑战,因为它具有较低的pozzolanic活动和高的污染潜力.
- 工业固体废物为改进基于RM的材料提供了潜在的解决方案.
研究的目的:
- 研究工业固体废物对红色泥填充材料的协同效应.
- 为了比较脱硫石膏 (DG),碳化物渣 (CS) 和钢渣 (SS) 在增强RM性能方面的性能.
- 优化基于RM的填充材料,以提高强度和环境性能.
主要方法:
- 基于RM的材料的压力强度的比较分析由DG,CS和SS激活.
- 使用X射线衍射 (XRD),里埃变换红外光谱 (FTIR),扫描电子显微镜 (SEM) 和布鲁纳尔-埃梅特-泰勒 (BET) 分析进行微结构性表征.
- 孔隙结构,微观形态和化学成分的评估.
主要成果:
- 脱硫石膏 (DG) 显著提高了基于RM的回填的压力强度.
- 一种由65.8%的RM,18.8%的飞灰 (FA),9.4%的水泥和6%的DG组成的复合材料实现了7.36 MPa的压力强度 (97.8%的增加).
- 总干事促进了乙化石和C-A-S-H凝的形成,优化了孔隙结构并创建了一个密集的矩阵.
结论:
- 红泥基填充材料的物理化学特性和强度的提升是DG有效的.
- 开发的基于RM的材料表现出卓越的环境性能.
- 这项研究为矿山填充和固体废物共处置提供了理论支持和新的见解.
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