氯离子在混凝土中的电迁移过程受离子间相互作用、双电层效应等因素的影响,扩散系数并非常量,而是溶液成分的函数.详细阐述了溶液成分影响氯离子在混凝土中扩散迁移特性的机理,并通过改进的RCM法测定了不同水灰比、龄期、外加电压和源溶液成分下的氯离子扩散系数.实验结果表明,较其它因素而言源溶液成分对电迁移特性影响较小,但总体仍呈一定规律.
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