作为铜渣基水泥复合材料的强化阶段,MWCNTs和GO的协同效应
Bingzhi Xiang1, Guoxiang Yang2, Ruifeng Cheng3
1School of Engineering and Technology, China University of Geosciences, Beijing, 100083, China. 289989169@qq.com.
Scientific reports
|April 17, 2025
概括
这项研究使用铜渣废弃物和碳纳米材料来制造更强,更环保的水泥复合材料. 新材料显著提高了压力和曲强度,为建筑提供了可持续的替代方案.
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.
- 环境科学 环境科学
背景情况:
- 在建筑材料中利用固体废物对于可持续性至关重要.
- 铜是一种铜炼的副产品,它存在着处理方面的挑战.
- 用纳米材料增强水泥材料为提高性能提供了潜力.
研究的目的:
- 开发出环保的铜渣基水泥 (CSC) 复合材料.
- 研究碳纳米材料,特别是多壁碳纳米管 (MWCNTs) 和石墨烯氧化物 (GO) 对CSC特性的影响.
- 分析开发的CSC材料的微观结构和水分特性.
主要方法:
- 用铜渣代替30%的水泥.
- 作为增强剂加入单或双剂的MWCNTs/GO.
- 使用SEM,QXRD,FTIR和BET分析进行表征.
- 使用牙阿拉伯 (AG) 表面活性剂和超声波处理制备MWCNT/GO纳米粒子溶液.
主要成果:
- 碳纳米材料显著提高了压力强度超过41.6%,曲强度达到对照组的93.8%.
- 在CSC中优化的双注MWCNT/GO表现出优越的微观结构和核化效应.
- 改善的水合度导致无形-酸盐-酸盐 (C-S-H) 的增加和更细的C-A-S-H相.
- 与MWCNTs和GO.的组合观察到的协同增强.
结论:
- 开发的基于铜渣的水泥复合材料与碳纳米颗粒显示出优异的机械性能.
- 固体废物 (铜渣) 和纳米材料的使用为水泥生产提供了一种新的,可持续的方法.
- 这些发现有助于开发环保钢筋混凝土材料.
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