Abstract:
EN: Problem statement. Electrically conductive concrete [1] is a promising direction in the
creation of smart concrete. In this case, they can act as generators of electrical energy, heat
energy, accumulators of electricity, elements of protection against electromagnetic fields.
The mechanism of electrical conductivity in composite electrically conductive materials
is quite complex. In the simplest case, charge transfer can occur through direct contact
between aggregate particles. Therefore, electrically conductive concrete must contain an
electrically conductive aggregate. Electrically conductive aggregates can be combined into
two main groups: a) metal; b) carbon [2].
One of the most important criteria for the filler of electrically conductive composites is
availability and low cost. Therefore, it is advisable to use inexpensive electrically conductive fillers. These conditions are most fully satisfied by carbon fillers. Carbon, like a metal, has electronic conductivity. Carbon fillers include soot, graphite, carbon black, coke. These fillers are cheap, available in any region, and have low electrical resistivity. Currently, there is no generally accepted method for determining the electrical resistivity of electrically conductive fillers, so its development and testing is necessary.
