论文部分内容阅读
电迁移试验目前已经被广泛用来测试氯离子在混凝土中的扩散系数。本文采用此方法研究了不同掺量的粉煤灰对混凝土氯离子渗透性能的影响规律。结果表明:当水灰比、每立方米水泥用量以及粉煤灰掺量变化时,氯离子扩散系数随着粉煤灰掺量的增加而逐渐增加,混凝土氯离子扩散系数随水灰比的降低而显著降低。从而提高了混凝土的抗氯离子渗透能力。
Electromigration experiments have been widely used to test the diffusion coefficient of chloride ions in concrete. In this paper, the influence of fly ash with different contents on the chloride ion permeability of concrete is studied. The results showed that when the ratio of water to cement, the amount of cement used per cubic meter, and the amount of fly ash were varied, the diffusion coefficient of chloride ion gradually increased with the increase of fly ash content, and the chloride ion diffusion coefficient decreased with the ratio of water to cement. And significantly lower. This improves the resistance of the concrete to chloride penetration.