Surface coating type reinforced concrete corrosion inhibitor and preparation method thereof

Abstract

The invention relates to a surface coating type reinforced concrete corrosion inhibitor. The surface coating type reinforced concrete corrosion inhibitor comprises the components as follows: 15 to 40 wt% of a non-ionic surface active agent with HLB (Hydrophile Lipophile Balance) value more than 10, 5 to 30 wt% of a cosurfactant, 1 to 20 wt% of water insoluble organic inhibitor, and 20 to 50 wt% of water, wherein the cosurfactant is selected from organic alcohol or organic amine. The preparation method comprises the steps of mixing the non-ionic surface active agent, the cosurfactant and the water insoluble organic inhibitor, and agitating along with heating unit the mixture is completely molten, and then agitating along with water adding until the mixed liquid is turned into a clear state from a muddy state, thus obtaining the product. The preparation method provided by the invention is simple; the prepared product can be applied to surface treatment of the constructed concrete structure; and the prepared product has superior infiltration capacity, can effectively prevent the reinforcement surface from being eroded by chloride salt and sulfate, and has no adverse effect to the performance of the concrete.

Description

technical field [0001] The invention relates to a reinforced concrete rust inhibitor, in particular to a surface-coated reinforced concrete rust inhibitor, which belongs to the technical field of building materials. Background technique [0002] In recent years, with the expansion of national large-scale engineering construction and the deterioration of natural conditions, the corrosion of steel bars in concrete has become increasingly apparent, which has brought immeasurable losses to the national economy or the safety of people's lives and properties. Preventing and controlling the corrosion of steel bars is the guarantee to ensure the safety of concrete structures, among which the use of rust inhibitors is one of the most economical and practical methods in China. [0003] At present, the types of rust inhibitors are divided into blending type and surface coating type according to the way of use. The development and research of blending type rust inhibitors are relatively...

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Problems solved by technology

Among them, phenols are toxic and carcinogenic components, and they are not environmentally friendly organic rust inhibitors. In addition, large-scale electromigration devices need to be established in actual use, which is difficult to apply.

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