关于使用斯波杜矿业残留物作为性材料制备和性能空气混凝土的研究
Xiaoying Li1, Qiang Zeng2, Zhongtao Zhu3
1State Key Laboratory of Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China.
Materials (Basel, Switzerland)
|March 13, 2025
概括
矿山残留物,一种废物,可以在空气混凝土生产中取代石英砂. 这种可持续的方法增强了具体的具体.
科学领域:
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
- 废物管理 废物管理
背景情况:
- 空气混凝土是一种轻量级的建筑材料.
- 石英砂是混凝土生产中常见的状材料.
- 采矿残留物往往会带来处理方面的挑战.
研究的目的:
- 调查使用斯波杜矿山残留物作为空气混凝土中石英砂的替代品的可行性.
- 分析矿残留物对空气混凝土机械性能,孔隙结构和水分的影响.
- 了解矿残留物和水泥糊之间的相互作用机制.
主要方法:
- 正角实验设计. 正角实验设计.
- 用于相位分析的X射线衍射 (XRD).
- 福里埃转换红外光谱 (FTIR) 用于化学结合.
- 热重力测量 (TGA) 用于热分解.
- 侵入孔径测量 (MIP) 用于孔隙结构分析.
主要成果:
- 水-水泥比率显著影响机械性能和干燥密度.
- 粉糊,残留含量和水-水泥比率影响毛孔结构,毛孔主要<100 nm.
- 液化产品包括诺,托伯莫和C-S-H凝.
- 在性环境中,胺残留物表现出弱的波佐兰反应,形成增强界面结合的C-S-H凝.
结论:
- 斯波杜矿业残留物可以有效地替代空气混凝土中的石英砂.
- 该残留物的pozzolanic活性提高了混凝土的密度和机械性能.
- 这种利用为采矿废物管理和混凝土生产提供了可持续的解决方案.
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