FIELD: chemistry.
SUBSTANCE: invention relates to the industry of building materials and composition of an additive which is used in preparing concrete mixture. The complex additive for concrete mixture in form of a stabilised aqueous suspension of microsilica, which contains microsilica, sodium acrylate, a stabilising agent and water, contains PFK 70 as the stabilising agent, with the following ratio of components in wt %: microsilica 30.0-75.0; PFK 70 0.15-0.9, sodium polyacrylate 0.05-0.9, water - the rest.
EFFECT: low viscosity of the microsilica suspension, high rheological stability and fluidity during prolonged storage, as well as high crack resistance.
3 tbl
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| GYPSUM CEMENT GROUTING SOLUTION | 2023 |
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| METHOD TO MAKE CONCRETE MIX | 2009 |
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