用Hummers法制备了氧化石墨烯(GO)并用超声波将其分散制备了纳米片层分散液,用XRD和AFM表征了分散的效果.研究了不同含氧量GO对水泥水化晶体微观形貌及胶砂耐折强度和抗压强度的影响,结果表明含氧量为18.65％和25.53％的GO可使水泥水化产物成为花朵状微晶体,而且形状统一、分布均匀,具有显著的增韧增强效果.研究结果也说明了GO能够调控水泥水化晶体产物的形状和尺寸,GO对于水泥水化反应产物具有促进作用和模板效应.研究结果对于提高混凝土建筑的抗裂缝和耐久性具有积极的意义.
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