研究硫酸盐迁移行为酸酸水泥泥基于电脉冲加速腐蚀
De Xu1,2, Qing Yang1, Jianming Yang3
1School of Architectural Engineering, Jiangsu Open University, Nanjing 210036, China.
Materials (Basel, Switzerland)
|November 27, 2025
概括
这项研究引入了一种电脉冲方法,以快速评估酸酸水泥 (PMPC) 硫酸盐的抗性. 与渣或烟相结合的修改PMPC显示,与参考材料相比,硫酸盐耐受性得到改善.
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.
- 电化学 电化学 电化学
背景情况:
- 酸水泥 (PMPC) 提供快速设置和高早期强度.
- 传统的PMPC硫酸盐耐药性测试是耗时的.
- 开发加速测试方法对于PMPC质量控制至关重要.
研究的目的:
- 在电脉冲加速腐蚀下研究PMPC中硫酸盐离子迁移行为.
- 为了评估电场在快速评估PMPC硫酸盐电阻方面的有效性.
- 用渣粉 (PN) 和烟 (PS) 修改的PMPC与参考 (P0) 进行硫酸盐耐受性比较.
主要方法:
- 硫酸盐度分析以追踪离子分布.
- 压力强度测试用于评估材料完整性.
- 微分析和理论分析,以了解腐蚀机制.
- 电场的应用以加速硫酸盐离子迁移.
主要成果:
- 硫酸盐离子度和迁移深度随着腐蚀时间 (t) 增加,遵循多项式模式.
- 与渣 (PN) 和烟 (PS) 的PMPC标本在56天后表现出较低的表面硫酸盐度和迁移深度,相比于参考 (P0).
- PN和PS显示硫酸盐迁移系数 (D) 和估计的迁移深度 (h00) 降低,时间和这些参数之间观察到对数关系.
- 样品强度在脉冲正极端随着腐蚀时间的增加而增加,PN和PS的强度增长略高于P0.0.
结论:
- 电脉冲加速为评估PMPC硫酸盐电阻提供了一个快速的方法.
- 加入渣粉或烟可以增强PMPC的硫酸盐耐受性.
- 该研究为PMPC材料的实际应用和质量评估提供了理论基础.
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