This study examines and compares the workability, hydration, mechanical, microstructure and transport properties of cement paste composites containing the three forms of graphene-based 2D nanomaterials synthesised from epigenetic graphite deposit, namely, graphene oxide (GO), reduced graphene oxide (rGO), and pristine graphene nanoplatelates (G). Graphene materials were used from 0.01% to 0.16% of cement weight. The rGO and G were treated with salt and surfactant, respectively during synthesis, to improve dispersion in water. Characteristics and physical strength vary among GO, rGO and G, which have influenced the properties of nano reinforced graphene-cement composites (GCCs). The 28-day compressive and flexural strength of graphene (GO, rGO and G) cement composite improved by 28% and 81%, 30% and 84%, and 39% and 38%, respectively, compared to the control mix (cement paste without graphene materials). Finally, microscopic analysis, dynamic vapour sorption (DVS), electrical resistivity and water sorptivity results suggested that graphene materials densify and reinforce the composite microstructure.

这项研究检查并比较了水泥糊状复合材料的可加工性，水合性，机械性，微结构和运输性能，该复合材料包含由表观成因的石墨沉积物合成的三种形式的石墨烯基二维纳米材料，即氧化石墨烯（GO），还原氧化石墨烯（rGO） ，以及原始石墨烯纳米板（G）。所使用的石墨烯材料占水泥重量的0.01％至0.16％。在合成过程中分别用盐和表面活性剂处理了rGO和G，以改善在水中的分散性。GO，rGO和G之间的特性和物理强度各不相同，这影响了纳米增强石墨烯-水泥复合材料（GCC）的性能。石墨烯（GO，rGO和G）水泥复合材料的28天抗压强度和抗折强度分别提高了28％和81％，30％和84％，39％和38％。与对照混合物（不含石墨烯材料的水泥浆）相比。最后，微观分析，动态蒸气吸附（DVS），电阻率和吸水率结果表明，石墨烯材料致密化并增强了复合材料的微观结构。