矿物掺和料混凝土电通量的试验分析

本文对各种混凝土(矿粉、粉煤灰、硅灰的掺入量为0、10%、20%、30%和40%,水胶比为0.3、0.32、0.38和0.42)进行电通量测试实验,结果表明:随着矿物掺和料的掺量增加,电通量值减小;不同掺和料的混凝土,电通量出现最大减幅时对应的掺量变化段不相同;当掺量达到30%之后,电通量变化幅度减少,趋于稳定;电通量随着水胶比增加而增加,抗氯离子渗透能力随之降低;掺矿粉的混凝土电通量最大,掺硅灰的电通量最小,但硅灰受水胶比的影响更大些。

In this paper, we carried out experiments on various concrete （ slag, fly ash and silica fume incorporation is 0, 10%, 20%, 30% and 40%, the water cement ratio is 0.3, 0.32, 0.38 and 0.42） electric flux test. The results show that with the dosage of mineral admixture increases, the electric flux decreased; in the different admixture of concrete, when the maximum reduction in electrical flux hoppens, the time of amount changes is not the same; when the dosage is more than 30%, the change of the electric flux decreases and tends to be stable; the electric flux of concrete is the largest, and the electric flux of silica fume is the smallest, but the silica fume is more affected by the water-cement ratio.