▎ 摘　　要

NOVELTY - Cementitious composite comprises a modified aggregate material, where the modified aggregate material is configured from fine aggregate particles (Fag) particles pretreated with a graphene oxide (GO), where the graphene oxide (GO) is further arranged as crosslinked structures that arranges for a refined interfacial zone (ITZ) with a thickness of 3-10 pm, and a water/cement (w/c) ratio content configured with the modified aggregate material. USE - As cementitious composite. ADVANTAGE - None given. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: a composite preparation method, which involves pre-adsorbing a fine aggregate material with a graphene oxide in an aqueous dispersion, where an amount of the graphene oxide in the aqueous dispersion is 0.01-0.06 wt.% of the total weight of water and graphene oxide (GO), the pre-adsorbed aggregate material results in a modified aggregate material configured with a refined interfacial zone (ITZ) having a thickness of 3-5 pm, and adding a water/cement (w/c) ratio content so as to result in a cementitious composite; a conductive composite method, which involves coating a solution of graphene oxide on a surface of fine aggregate particles, drying the coated fine aggregate particles to provide modified fine aggregate material, reducing the modified fine aggregate material, and microwaving the reduced modified fine aggregate material, where the reduced modified fine aggregate material provides for a conductive composite material, and the conductive composite material is configured with a refined interfacial zone (ITZ) having a thickness of 5-10 pm; and a steam cured cementitious composite comprising a modified fine aggregate material, where the modified fine aggregate material is an aggregate material pre-adsorbed with a graphene oxide of 0.08-0.24 wt.% of the total weight of the cementitious composition, and a water/cement (w/c) ratio content configured with the modified fine aggregate material, and the bonded modified aggregate material is steam cured so as to result in the steam cured cementitious composition.