关于硫酸盐和酸盐激活基的研究
Jianping Zhu1, Zuolin Wang1, Xuemao Guan1
1School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
The Science of the total environment
|March 20, 2024
概括
这项研究使用复合修饰剂 (硫酸和酸) 增强工业 (FG),改善其水分,强度和建筑材料的定时间.
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.
- 建筑材料 建筑材料
背景情况:
- 工业副产品合石 (FG) 具有较差的水合活性,较长的定时间和较低的早期强度.
- 这些局限性阻碍了其在建筑材料行业的广泛应用.
研究的目的:
- 为了提高合石 (FG) 的反应性和性能,使用复合材料修饰剂.
- 研究这些修饰剂改善FG特性的机制.
主要方法:
- 使用的复合材料修饰剂:硫酸 (Na2SO4) 和酸 (NaNO2).
- 采用了先进的分析技术:X射线衍射 (XRD),1H低场核磁共振 (NMR) 和扫描电子显微镜与能量分散光谱 (SEM-EDS).
主要成果:
- 优化的修饰剂度:1.5重%的Na2SO4和0.5%的NaNO2.
- 显著减少了约500分钟的设置时间.
- 在28天后,屈曲强度增加了55.5% (至4.2MPa),压力强度增加了31.5% (至37.6MPa).
- 修饰剂促进了转化,用镜和针状晶体对石膏 (DH) 进行脱水,从而创造出更密集,更不多孔的结构.
结论:
- 复合材料修饰剂 (Na2SO4和NaNO2) 有效地提高了石膏的水合率,活性和机械强度.
- 增强的晶体形态和更密集的微观结构有助于提高性能.
- 这项研究证明了FG作为一种高效的建筑材料的潜力,具有修饰器增强.
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