Concrete Modification Using Graphene and Graphene Oxide

Abstract

The paper considers methods for concrete modification using low-layer graphene and graphene oxide. It was found that graphene oxide and low-layer graphene obtained by liquid-phase shear exfoliation significantly increase the strength of concrete. In our opinion, low-layer graphene has better prospects since it is cheaper and its production technology is environmentally friendly. The viability and future of graphene largely depends on the availability of such a method that allows mass production of high-quality graphene at an affordable price. In this regard, liquid-phase separation of graphite with the formation of low-layer graphene, which can be used to modify concrete, turned out to be a competitive solution. The following main tasks were formulated in order to solve the organizational problems of low-layer graphene industrial production: reducing the concentration of low-layer graphene in concrete; increasing the concentration of low-layer graphene in suspension; developing an industrial technology for the production of concentrate with a high content of low-layer graphene; conducting full-scale experimental studies to determine the optimal concentration of low-layer graphene in concrete.