▎ 摘　　要

NOVELTY - Sustainable concrete composite comprises binder, coarse aggregates, fine aggregates and a carbon-based nano material. USE - Sustainable concrete composite. ADVANTAGE - The sustainable concrete composite exhibits enhanced performance in terms of strength and durability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing green concrete, which involves: (A) mixing binder materials (fly ash and ground granulated blast furnace slag) and aggregates (fine and coarse aggregates), dispersing graphene oxide in extra water and superplasticizer by constant stirring for 30 minutes; (B) mixing mixture of binder materials with aggregates; and (C) premixing for 24 hours before casting concrete, adding to mixture, adding solution prepared to the mixture.