无水泥组合物用于恢复白石,基于石灰粘合剂和二氧化
Elizaveta Repina1, Lyubov Zakrevskaya1, Yuri Panov2
1Department of Building Manufacture of Vladimir State University Named after Alexander and Nikolay Stoletovs (VLSU), 600000 Vladimir, Russia.
Materials (Basel, Switzerland)
|January 11, 2024
概括
研究人员为白石纪念碑开发了新的无水泥修复材料. 这些石灰和二氧化复合材料增强了结构完整性和粘附性,为保护建筑遗产提供了兼容的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 保护科学 保护科学
- 结构工程 结构工程
背景情况:
- 建筑纪念碑面临人类,自然和技术因素的退化.
- 这些因素会损坏结构和建筑材料,特别是白石,导致不可逆转的改变.
- 现有的修复方法可能并不总是适合或可持续的古老的造.
研究的目的:
- 开发新的无水泥组合物,用于恢复古老的造材料,特别是白石.
- 为了增强修复材料的粘合和强度特性.
- 为了确保开发的复合材料与原始白石的结构和化学兼容性.
主要方法:
- 开发新的材料组成,将石灰和二氧化与化学添加剂结合起来.
- 使用现代实验室设备测试材料性能,包括粘合强度和压力强度.
- 使用X射线衍射 (XRD),光学显微镜和扫描电子显微镜 (SEM) 来描述开发的复合材料的相位组成和结构.
主要成果:
- 添加二氧化 (白色烟尘) 增加了粘合强度1.5倍.
- 压力强度从10.6提高到15.6MPa,与没有二氧化的复合材料相比,压力强度也增加了1.5倍.
- XRD,光学显微镜和SEM证实开发的复合材料具有与白石相似的相组合和同质结构,表明其高度兼容.
结论:
- 开发的基于石灰和二氧化的无水泥成分对白色石材恢复非常有希望.
- 与传统复合材料相比,这些材料具有优越的粘合和强度性能.
- 结构和化学相容性确保有效和持久的恢复古老的造.
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