Experimental Study on Electric Properties of Carbon Fiber Reinforced Mortar

摘要

According to phenomenon that the physical properties have great effect on electric capability of carbon fiber reinforced mortar, the author researched relationship between DC resistance of carbon fiber reinforced mortar and curing age using the two-probe method. Then the effect of insulative area, location and quantity on DC resistance of carbon fiber reinforced mortar was investigated at different curing age. The results suggest that DC resistance inceases greatly with its curing age, which illustrates relationship like Sigmoidal curve. Because of bulk conduction and surface conduction like that in crystal isolator, DC resistance shows that increase first and then decrease with the increase of insulative area. The quantity of insulation has few effect on DC resistance, but the shorter the distance between electical pole and insulating trip is, the stronger its conductibility is.