Literature research shows that the main alkaline products include salts such as CaCO3, NaSO4, CaSO4, and K2SO4.
At present, the main methods for inhibiting alkali bleeding both domestically and internationally are: firstly, by improving the overall treatment of the internal composition of concrete, that is, by preparing high-performance alkali resistant concrete; The second is the surface treatment method of coating the concrete surface.
The surface coating materials used in literature include cement-based materials, adhesives, mortar, and organic coatings.
Overall, the overall treatment method can better improve the anti alkali properties of concrete by changing its internal composition.
Literature research has shown that using low water cement ratio concrete and adding certain active mineral admixtures can improve the impermeability of concrete to a certain extent, thereby playing a role in anti alkali leaching.
However, there is no clear experimental specification for the component design of this anti alkali admixture both domestically and internationally.
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