通过氧化和超声波分散制备了氧化石墨烯(GO)纳米片层分散体系,研究了GO纳米片层对水泥基复合材料的增韧效果及作用机制.用EDS、FTIR、XRD、SEM和AFM对GO纳米片层的结构进行了表征.研究结果表明:所得GO含氧量为32.3wt％,GO纳米片层的厚度为6 nm左右,在GO片层表面含有羟基、羧基和磺酸基等活性基团.水泥基复合材料的SEM形貌及力学性能测定结果表明:当GO掺量为0.03wt％时,GO能够使水泥水化产物形成花朵状晶体,并使水泥基复合材料的拉伸强度、抗折强度和压缩强度比对照样品分别提高了65.5％、60.7％和38.9％.提出了GO纳米片层对水泥水化产物的模板调控机制,揭示了花状晶体的形成过程.
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