掺和料对混凝土电通量和RCM扩散系数相关性的影响

采用ASTM C1202电通量测试方法与RCM法研究了粉煤灰、矿粉两种矿物掺和料,分别在单掺、双掺情况下对混凝土电通量与RCM扩散系数的影响.研究结果表明：单掺粉煤灰时,电通量与氯离子扩散系数相关性不强;单掺矿渣粉时,电通量与氯离子扩散系数具有相同的变化规律,随矿渣粉掺量的增加呈减小趋势;粉煤灰和矿渣粉双掺时,电通量和氯离子扩散系数均好于单掺.

Influence of Mineral Admixtures on Correlation of Concrete Dielectric Flux and RCM Diffusion Coefficient

The influence of mineral admixture on dielectric flux and chloride diffusion coefficient of concrete are RCM test, and the correlation of dielectric flux and chloride ion diffusion coefficient is also discussed. The results show that, when fly ash is added alone, the correlation of dielectric flux and chloride diffusion coefficient is not strong; when slag powder is added alone, dielectric flux has the same variation rule with chloride ion diffusion coefficient, they both appear decreasing with the increase of the amount of slag powder; when both fly ash and slag powder admixture are added, dielectric flux and the diffusion coefficient of chloride ions are better than the single doped.