水工混凝土掺矿物掺合料的抗氯离子渗透性研究

Study on Chloride Penetration Resistance of Mineral Admixture in Hydraulic Concrete

文章利用RCM法研究了混凝土的抗氯离子渗透性与粉煤灰、花岗岩石粉等不同矿物掺合料掺量的关系,并揭示了氯离子扩散系数变化规律。试验表明,粉煤灰和花岗岩石粉均能明显改善混凝土性能,并且单掺花岗岩石粉低于双掺石粉与粉煤灰时的抗氯离子侵蚀性。

In this paper,the RCM method is used to study the relationship between the chloride ion permeability resistance of concrete and the content of different mineral admixtures such as fly ash and granite powder,and reveal the change rule of chloride ion diffusion coefficient.The test results show that both fly ash and granite powder can obviously improve the performance of concrete,and the chloride ion erosion resistance of granite powder mixed with fly ash is lower than that of granite powder mixed with fly ash.