Novel scanning electron microscope sample preparation method convenient for observing morphology of cement hydrated crystal regulated by graphene

The invention relates to a novel scanning electron microscope sample preparation method convenient for observing graphene to regulate and control cement hydrated crystal morphology, which comprises the following steps: (1) preparing cement paste according to a certain water-cement ratio, and uniformly distributing the cement paste on a glass plate; (2) weighing graphene slurry, adding the graphene slurry into the PCs solution, and performing ultrasonic treatment and mechanical stirring at the same time to obtain a graphene dispersion liquid; and (3) uniformly dripping the graphene dispersion liquid on the cement paste, and uniformly scattering cement powder to obtain the scanning electron microscope sample with the lowest cement paste cushion layer, the graphene layer as the middle layer and the cement ash surface layer as the surface layer. Compared with a traditional method, an interlayer micro analysis sample preparation method is adopted, the micro morphology of a cement hydration product on graphene can