酸盐对甲-低飞灰基地质聚合物的压力强度的影响
1China 19th Metallurgical Group Corporation Limited, Panzhihua 617099, China.
Materials (Basel, Switzerland)
|September 13, 2025
概括
这项研究开发了高强度地质聚合物水泥,使用室温的金属和飞灰. 最佳配方实现了76.70 MPa的压力强度,证明了节能地质聚合物制备.
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.
- 可持续建筑 可持续建筑
背景情况:
- 地质聚合物水泥生产通常需要高温,导致大量的能源消耗.
- 开发室温固化方法对于节能和可持续的水泥材料至关重要.
研究的目的:
- 为了研究在室温下制备的不同低飞灰含量的甲甲基地质聚合物的压力强度.
- 分析性离子和飞灰对地质聚合物特性和微观结构的影响.
- 为了阐明水化机制和相位转换.
主要方法:
- 合成的地质聚合物样本使用metakaolin和低飞灰与不同的性激活剂 (KOH,NaOH).
- 使用X射线衍射 (XRD),富里埃变换红外光谱 (FTIR),扫描电子显微镜 (SEM) 和能量分散式X射线光谱 (EDS) 进行了物理性质和微观结构的特征.
- 在28天后测试了压力强度.
主要成果:
- 飞灰含量显著影响了压力强度,超过性离子类型 (Na+/K+).
- 一种最佳配方 (20%飞灰,20%KOH激活剂) 实现了76.70MPa的压力强度,超过了NaOH激活对应物 (72.34MPa).
- 微结构分析揭示了密集的N-A-S-H和C-(A) -S-H凝结构和有效的填充物合并,有助于强度.
结论:
- 用飞灰添加剂的甲高基地质聚合物可以在室温下达到高压力强度.
- 这种方法为传统的高温地质聚合物合成提供了可行的,节能的替代方案.
- 这些发现支持使用飞灰和金属作为可持续建筑材料.
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