1. 水化研究

混凝土材料的水化過程會隨著化學組分、外加劑、配合比和養(yǎng)護條件等因素改變而發(fā)生變化。隨著時間的推移，混凝土材料的孔隙率會隨著水化產(chǎn)物的形成而不斷降低，尤其是在水化早期時，水泥漿體逐漸硬化，導致孔隙結構的致密化,水化產(chǎn)物阻斷了離子的導電通路使得阻抗發(fā)生較大變化。Zhang][1]等人通過非接觸式阻抗測試裝置，研究并識別了混凝土材料水化過程，并將其分為了五個階段，即溶解、誘導、加速、減速和擴散控制五階段。Jiana[2]等使用交流阻抗技術分析了摻入粉煤灰和礦渣對混凝土水化過程的交流阻抗變化,結果表明，不同摻量粉煤灰以及礦渣下混凝土阻抗變化趨勢相同，在水化初期,隨著礦物摻合料的增加阻抗減小，在水化后期，阻抗逐漸增加，且會隨著礦物摻合料的增加越發(fā)明顯，這是由于其二次水化作用所造成的。

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