Ceramic proppant appears to "float" phenomenon would lead to what kind of consequences

      Bulk cement mortar will generally be heavier than  Ceramic proppant   so the vibration when some light  Ceramic proppant  will appear floating on the specimen surface phenomenon.

Once this occurs,  Ceramic proppant  mix concrete objects will appear the phenomenon of segregation, which would not be able to get a good result in strength and appearance.
       In its concrete formation process, shale sand, water and other smaller proportion of the part will go up, a larger proportion of the cement paste and fine aggregate but it will sink, causing uneven concrete, making Ceramic proppant its composition on the concrete different positions are different.
        Thus forming a  Ceramic proppant  concrete at the macro and meso hierarchical structure on the inside and outside, which reduces the strength of concrete Ceramic proppant, while its impermeability, frost resistance, carbonation erosion, chemical resistance and other properties are also seriously affected.
        In order to improve this phenomenon, in the preparation of  Ceramic Proppant  concrete, the need to control the movement of the water and light aggregates, water, and prevent the free movement of lightweight aggregate.