Novel concrete carbonization prevention coating material

Abstract

The present invention discloses a novel concrete carbonization prevention coating material, wherein a hydrated silicate is adopted as a main agent, a chemical excitation accelerator and a filler are appropriately added, and a mixing treatment is performed to obtain the coating material. Raw materials of the coating material comprise, by weight, 60-80% of water, 10-15% of a hydrated silicate, 2-5% of a nanometer slurry, 8-20% of a filler, an appropriate amount of a wetting agent, an appropriate amount of an antifoaming agent, an appropriate amount of a leveling agent, and a an appropriate amount of a rheology modifier. The preparation method for the coating material comprises: weighing various components according to the weight proportion, adopting the hydrated silicate as the main agent, and adding water to dilute, such that the silicate solid content is 10-15%; doping the nanometer slurry, the filler, the wetting agent, the antifoaming agent and the dispersing agent, stirring for 1.5-2 hours, and filtering with a filter cloth; then adding appropriate amounts of the rheology modifier and the leveling agent, and uniformly stirring to obtain the required concrete prevention coating material. With the coating material of the present invention, chemical corrosion resistance and strength of the concrete can be increased, frost resistance and salt-freezing resistance of the concrete are improved, density of the concrete surface layer is increased, wear resistance of the concrete is increased, and other advantages are provided.

Description

technical field [0001] The invention relates to the field of high-performance concrete protection, in particular to a novel concrete carbon protective coating. Background technique [0002] In water conservancy projects, the concrete wall structure must be durable (concrete durability refers to the ability of concrete to maintain stable performance in the environment in which it is used for a long time). If the durability is insufficient, it will cause different degrees of damage to the concrete wall structure, causing hidden dangers to the safety of water conservancy facilities. The manpower and material resources required for repair work are often very large. Therefore, improving the durability of concrete walls is beneficial to the extension of water conservancy facilities The service life of the building and saving the country's investment in the building have important practical and far-reaching historical significance. [0003] There are many factors that affect the d...

AI Technical Summary

Problems solved by technology

Cracked concrete due to CO 2 Continuous intrusion, carbonation is more serious, steel corrosion is more severe, until the concrete peels off, which seriously affects the durability of concrete

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