Abstract The concrete pore solution changes during chloride transfer due to the species leaching and the dissolution/precipitation of compounds. The latter could affect the material porosity and the chloride diffusion coefficient. In order to quantify these changes, the global movement of species was monitored on blended cement materials during a chloride migration test. Compartment solutions and sample pore solutions were analyzed in order to quantify the ion exchange balance. Two migration test protocols were carried out using (i) NaOH, KOH and NaCl, and (ii) synthetic seawater and synthetic pore solution. The use of slag reduces the free chloride in the porosity by about 9 times. For the Portland cement material, a precipitation of 0.3%wt of Na, 0.6%wt of K and 1%wt of Cl participated in a porosity clogging of 60%. Finally, the materials with mineral additions reduce the portlandite dissolution during chloride transfer and the calcium leaching phenomena up to 26%.

中文翻译：

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在添加矿物的胶凝材料的氯化物迁移试验中离子交换平衡的全球定量监测

摘要 由于物质浸出和化合物的溶解/沉淀，在氯化物迁移过程中混凝土孔隙溶液发生变化。后者会影响材料孔隙率和氯化物扩散系数。为了量化这些变化，在氯化物迁移测试期间，在混合水泥材料上监测物种的全球移动。分析隔室溶液和样品孔溶液以量化离子交换平衡。使用 (i) NaOH、KOH 和 NaCl，以及 (ii) 合成海水和合成孔隙溶液进行了两种迁移测试方案。炉渣的使用使孔隙中的游离氯化物减少了约9倍。对于波特兰水泥材料，0.3%wt 的 Na、0.6%wt 的 K 和 1%wt 的 Cl 的沉淀参与了 60% 的孔隙率堵塞。最后，