石灰和因子对阿利特-耶利米特水泥合成和水化的影响
Xiaodong Li1,2, Bing Ma1, Wenqian Ji3
1Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of the People's Republic of China, Nanjing 210042, China.
Materials (Basel, Switzerland)
|June 27, 2024
概括
这项研究探讨了Alite-Ye.
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.
- 土木工程 土木工程是指土木工程.
背景情况:
- 阿利特-耶利米特水泥是一种先进的水泥材料.
- 它将ye'elimite纳入普通波特兰水泥中.
- 这种水泥的合成和水化对其性能至关重要.
研究的目的:
- 为了研究Alite-Ye'elimite克林克的合成和水化行为.
- 分析不同石灰和度因子对料成分和性能的影响.
- 为了评估水化产品,孔隙结构,机械强度和水化糊的微观结构.
主要方法:
- 通过二次热处理合成的克林克.
- 使用X射线衍射 (XRD),热重力测量差分扫描热量测量 (TG-DSC),扫描电子显微镜 (SEM) 和入孔测量 (MIP) 进行的成分特征.
- 对水化产品,孔隙结构,机械强度和微观结构进行分析的水化面粉.
主要成果:
- 阿利特-耶利米特水泥石,度系数 (KH) 为0.93,显示28天强度最高 (64.88%C3S,2.06%C4A3$).
- 添加SO3降低了三酸 (C3A) 含量和阿里特/贝利特 (C3S/C2S) 比率,有利于贝利特的形成.
- 水合面粉呈现出从0.01到10微米的孔径,孔径减少,孔径分布随着时间的推移转移到更小的尺寸.
结论:
- 最佳的石灰和系数 (KH=0.93) 产生了优越的Alite-Ye'elimite水泥块,具有增强的机械强度.
- SO3的添加影响了基相组合,并促进了贝莱特的形成.
- 在水化过程中孔隙结构的演变对于理解水泥糊的发展和长期耐用性至关重要.
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