Experimental Study on Electrical Conductivity of Carbon Fiber Reinforced Concrete Underwater

Abstract

This paper studied the effect of carbon fiber dosage, concrete age, size of defect, and eater pressure on the electrical conductivity of carbon fiber reinforced concrete (CFRC). Insulating films were buried in the concrete to simulate inside cracking. The carbon fiber was added as the conductive material of the concrete. The electrical conductivity was measured with a two-electrode method with a DC power. The test results show that concrete age, defect area and the external water pressure are the main factors influencing the electrical conductivity of CFRC, while the number and location of defects have less effect.

Effects of single-walled carbon nanotubes and steel fiber on recycled ferrochrome filled electrical conductive mortars

“…Materials with good conductivity, such as steel fiber [16,17], carbon fiber [18,19], erosion wire [20], steel shaving [16], graphite powder [13,21], carbon nanotube [22], carbon black [20] and graphene [23] can be used to increase the electrical conductivity of cementitious materials. Fig.…”

Experimental Study of Factors on the Conductive Properties of Carbon Fiber Reinforced Concrete

“…As a new type of composite material, Carbon Fiber Reinforced Concrete (CFRC) is composed of carbon fiber and plain concrete. However, if carbon fiber is properly added to plain concrete, this can not only improve its mechanical properties but strongly modify its electrical properties [1,2]. Compared with ordinary concrete, the resistance can be reduced from 10 9 Ω•cm to the limits of 10 2 Ω•cm.…”