在含三酸盐的多态,微观结构和化演变中的作用
Yongqi Da1, Zeyin He1, Qing Zhao1
1College of Materials Science and Engineering, Xi'an University of Architecture & Technology, Xi'an 710055, China.
Langmuir : the ACS journal of surfaces and colloids
|March 4, 2026
概括
氧化物 (Ni2O3) 和化物 (CaF2) 在水泥生产中影响三酸盐 (C3S) 化. 用Ni2O3和CaF2进行兴奋剂改变了C3S的多态,微观结构和离子释放,影响了水泥的性能.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 矿物加工 矿物加工
背景情况:
- 混凝土炉合加工利用废弃材料制造低碳水泥.
- 含的污泥是潜在的替代原料.
- 污泥中的和会不可预测地影响水泥的水分.
研究的目的:
- 研究在含化物三酸 (C3S) 多态物中所扮演的角色.
- 分析对C3S微观结构和水分的影响.
- 了解对离子流动性和水泥性能的影响.
主要方法:
- 化C3S与不同量的氧化 (Ni2O3) 和化 (CaF2).
- 用X射线衍射 (XRD) 分析C3S多态性和细胞对称性.
- 微观结构分析,观察表面缺陷和变化.
- 液化研究用于监测离子释放 (Ca2+,Si4+) 和反应动力学.
主要成果:
- Ni2O3和CaF2表现出协同的矿化,减少了自由的CaO和固定F和Ni离子.
- 兴奋剂改变了C3S细胞对称性,并改变了衍射峰值.
- 在C3S表面形成新的线状缺陷.
- Ni2O3加速了最初的水合,但抑制了后期的水合,降低了整体的水合率.
- 兴奋剂水平影响了Ca2+和Si4+的释放,较低水平加快了Ca2+的释放,较高水平促进了Si4+的释放.
结论:
- 在含酸盐的C3S中化显著改变了其结构和水合特性.
- 控制的兴奋剂提供了一种途径,可以在联合加工过程中管理水泥水化.
- 结果为优化使用废物材料生产水泥提供了洞察力.
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