矿物掺合料对海洋混凝土抗氯离子渗透的研究

Study of the Influence of Mineral Admixture on Chloride Permeability in Marine Concrete

纯硅酸盐水泥混凝土很难达到海洋高性能混凝土氯离子渗透电量小于1000C要求,矿物掺合料能够改善抗氯离子渗透能力,研究得出改善混凝土抗氯离子渗透能力依次为10%SF>60%SG>30% FA;并且通过氯离子因素耐久性经时破坏模型计算,对掺加不同矿物掺合料海洋混凝土耐久性寿命进行了预测与比较。

Researches on the marine concrete show that it's difficult to achieve the low chloride permeability demand with silicate cement and mineral admixtures can improve the ability of chloride permeability. The effect of improving chloride permeability capability is different with different kind and quantity of the admixtures,the rule being 10%SF>60%SG>30%IIFA.The durable life of marine concrete is forecasted and compared on the basis of the chloride deterioration model.