High anti-permeability waterproof inorganic paint and preparation method thereof

Abstract

The invention discloses high anti-permeability waterproof inorganic paint and a preparation method thereof and belongs to the technical field of inorganic paint. The high anti-permeability waterproofinorganic paint comprises the following main components: 150-300 parts of superfine sand having the mean particle size of 30-125 microns, 130-260 parts of cement having the strength of not less than 32.5MPa, 100-200 parts of an admixture having the mean particle size of 5-30 microns, 5-10 parts of a high-performance admixture, 6-18 parts of redispersible latex powder having a water-binder ratio of0.2-0.4, 5-20 parts of sodium silicate, 2-5 parts of an antifoaming agent, 2-4 parts of a dispersing agent and 10-20 parts of a water repellent. The high anti-permeability waterproof inorganic paintprepared by the technical scheme of the invention has the characteristics of preparation simplicity, excellent anti-permeability property, excellent water resistance, excellent film-forming property,high adhesive force and the like, has the effects of obviously improving the anti-permeability property of the concrete structure and prolonging the service life of the concrete structure, and is suitable for development and application of green and environmental-friendly high anti-permeability waterproof inorganic paint.

Description

technical field [0001] This patent relates to the technical field of high impermeability and waterproofing in concrete construction engineering, and more specifically, relates to a high impermeability and waterproofing inorganic coating and a preparation method thereof. Background technique [0002] In recent years, with the limitation of the development of urban aboveground space, the number of underground concrete facilities is increasing, and the scale is increasing day by day. The waterproof requirements of underground concrete projects are also getting higher and higher, especially underground pipe corridors, underground commercial streets, etc., which are seriously affected by groundwater. erosion. In order to prevent and alleviate the harm of groundwater to such concealed facilities, engineers and technicians, construction units, construction units and scientific research units of all countries in the world have made great efforts, but the problem of cracks and leaks ...

AI Technical Summary

Problems solved by technology

However, the waterproof material has poor adhesion to concrete and is easy to fall off

And once the waterproof material layer is destroyed in the follow-up construction, the overall waterproof facilities of the underground concrete engineering will be useless, and the problem of waterproofing of the underground concrete engineering will not be solved fundamentally.

[0004] Chinese patent application number 201310649942.8 discloses a polymer cement waterproof coating, wherein the polymer cement waterproof coating has high cost, is not environmentally friendly and has poor impermeability

Chinese patent application number 201510078137.3 discloses an improved Venetian plaster and its application, wherein the improved Venetian plaster can replace traditional paints and ceramic tiles and be applied to interior wall decoration of buildings, but it has the following disadvantages : (1) Sulphoaluminate cement is added to its composition, the setting time is too short, and it is not easy to construct; (2) "After stirring the above raw materials evenly, use the mass ratio as the raw material: water = 2:1 mixed with water", Large water-to-binder ratio, low strength, poor durability, and easy to fall off; (3) Small sand-to-binder ratio, high cost; (4) Thickener is added to the composition, which has poor fluidity and cannot be sprayed or coated with a roller Brush; (5) The application method is cumbersome, it needs to brush the interface agent and the finish agent, and it cannot be directly painted on the concrete surface