水灰比对混凝土电化学除氯效果的影响

Influence of W/C on efficiency of electrochemical chloride extraction from concrete

对不同水灰比混凝土进行连续14 d的电化学除氯试验,结果表明:相同电场作用条件下,水灰比越小的混凝土电化学除氯时通过的电量越少,除氯效果越差,因此,针对低水灰比的高强混凝土需要适当延长通电时间才能达到理想除氯效果。

Electrochemical chloride extraction treatment was applied to different W/C concrete specimen＇s for 14 days, the results show that the electric quantity passing concrete specimen reduces and the chloride extraction efficiency decreases with the reduction of water to cement ratio when the concretes are treated under the same electric field. Therefore, the treatment duration should be increased for high strength concrete with low W/C, in order to reach a good chloride extraction efficiency.