CGM grout material appear uneven surface is how cause

How to make CGM grout material on the surface of flat surface uneven phenomenon: CGM grout material surface uneven, or have different plate thickness, surface rough. The causes of 1. After pouring of CGM grout material, the surface only beat with a spade, unused float leveling calender, surface rough; 2. Template is not supported on a hard soil layer, or insufficient bearing surface, or loose and bubble water, the new water infuse pulp uneven subsidence during early curing; 3. CGM grout material has not reached a certain strength, master cheng yen or material handling operation, concave surface appear uneven or marks. Prevention measures in accordance with the construction of the operation, casting after grouting material, should according to the level of control marks or play with potential float leveling, pressure light, after the final set water conservation; Template should have enough strength, stiffness and stability should be supported on a solid foundation, has enough support area, and to prevent flooding, to ensure not occur sink; When pouring irrigation CGM pulp, strengthening inspection, strength of grouting material reaches 1. More than 2 n / ㎜ 2, has to be in on structure.