极化效应对碳纤维增强水泥(CFRC)导电性的影响

INFLUENCE OF POLARIZATION ON CONDUCTIVITY OF CARBON FIBRE REINFORCED CEMENT

研究了碳纤维增强水泥（CFRC）导电时的极化效应．实验表明：极化效应对CFRC导电性有不可忽视的影响．调整碳纤维含量，可以控制极化效应，随着养护龄期延长，极化效应明显减小．因此，可以用直流电流法测量CFRC的电阻．

The polarization of carbon-fiber hardened cement paste (CFRC) at electric conduction is studied. The results show, the polarization has a notable effect on the electric conductivity of the CFRC.But the polarization can be controlled by adjusting the content of carbon fiber. the measuring voltage and current. The polarization decreases with curing age.So the electric resistence of CFRC can be measured by a direct current.