Ultra-high performance cement-based grouting material for micro-expansion type assembly building and preparation method thereof

[0028] A kind of preparation method for the grouting material of prefabricated building, it is characterized in that, comprises the following steps:

[0029] (a) Pour the powder material and fibers of the grouting material into the mixer in turn, so that the dry materials are evenly mixed;

[0030] (b) Weigh an appropriate amount of water in proportion and add it to the mixer, mix evenly to obtain an ultra-high-performance grouting material, and then inject the ultra-high-performance grouting material into the grouting pump to prepare for the grouting operation.

[0031] The composition and weight percentage contained in the specific implementation case are shown in Table 1 below:

[0032] Table 1 Composition and percentage of grout for prefabricated buildings

[0033]

[0034] In this way, an ultra-high-performance cement-based grouting material is obtained, and the slurry does not segregate and does not bleed; it has good fluidity and can be self-leveling. The specific ...