Influence of the Amount of Conductive Component on the Electrical Resistivity of Fine-Grained Electrically Conductive Concrete

Approaches to the production of electrically conductive concrete and the possibility of its application through the use of electrical properties in various industries are considered. The results of testing the compositions of fine-grained self-compacting concrete based on Portland cement CEM I 52.5 N, sand with a size modulus Mk=2.43 and polycarboxylate plasticizer for changes in electrical resistivity during hardening are presented. The increase in specific electrical conductivity was provided by the introduction of conductive components in various quantities, such as construction soot, carbon black K-354, graphite EUT-2. The positive effect of increasing the amount of the conductive component on the electrical resistivity for 28 days of normal hardening of the samples and on the ability to resistive heating by changing the surface temperature of the samples when passing a direct current with a voltage of 30 V. is shown.

A.M. BAHRAH, Engineer, Graduate Student (This email address is being protected from spambots. You need JavaScript enabled to view it.),
O.A. LARSEN, Candidate of Sciences (Engineering), Associate Professor (This email address is being protected from spambots. You need JavaScript enabled to view it.),
S.V. SAMCHENKO, Doctor of Sciences (Engineering), Professor

National Research Moscow State University of Civil Engineering (26, Yaroslavskoe Highway, Moscow, 129337, Russian Federation)

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