Electrical conductivity of cement mortar with the addition of graphene

¹ Department building materials and construction technology, Belarusian National Technical University, Minsk Belarus
² Laboratory of Physical and Chemical Technologies. of the National Research Center of the National Academy of Sciences of Belarus for Materials Science
³ Qingdao University of Technology, 266033, China, 11 Fushun Rd, Qingdao

Abstract

With the development of technological innovations in the field of construction, increasing the efficiency of energy-saving materials used, more and more attention is paid to electrically conductive materials. Electrical conductivity studies were carried out on samples of concrete with graphene addition to obtain the current–voltage characteristics of the material. In order to identify the mechanism of the effects of different concentrations of graphene on electrical conductivity, a series of samples with different concentrations of graphene was made. As a result of the research, it was found that the dependence: the resistivity of the materialthe concentration is percolation, the concentration of graphene in the amount of 8% of the mass of cement is the percolation threshold.