TY JOUR TI ELECTRICALLY CONDUCTIVE CEMENT SYSTEMS BASED ON CARBON BLACK AND CARBON FIBER KW Portland cement KW carbon black KW carbon fiber KW electrical resistivity JO Technique and technology of silicates AU Larsen, O.A. AU Bakhrakh, A.M. PY 2024 IS 31 PB Individual Entrepreneur Svetlana Vasilievna Samchenko