Ocean engineering concrete anti-corrosive paint

Abstract

The invention belongs to the technical field of anti-corrosive paint and provides an ocean engineering concrete anti-corrosive paint which comprises the components with the proportion as follows: 10%-15% of elastic epoxy resin, 20%-30% of E51 epoxy resin, 2%-5% of reactive diluents, 25%-30% of anti-corrosive pigment, 10%-15% of filling, 0.5%-1.0% of additive and 20%-30% of curing agent. The paint has the effects as follows: the content of solid is high and can be more than 98 percent; the paint has environmental friendliness; the paint without solvent avoids the problem that solvent of solvent type paint volatilizes during drying and causes air holes; the paint without the solvent has better resistance to chloride ion permeability; the thickness of the paint can be 500microns just by painting a layer; the paint can satisfy the requirement of the ocean engineering concrete paint protection design just by painting once, thereby reducing the construction cost and saving constructing time; and the paint has good ductility, ensures the integrality of a coating in service and realizes the long acting property of anticorrosion.

Description

Technical field [0001] The invention belongs to the technical field of anticorrosive coatings, and mainly relates to a marine engineering concrete anticorrosive coating. Background technique [0002] In the marine environment, the corrosion of steel bars caused by chloride ion corrosion leads to the decline of the durability of marine engineering concrete structures, which has attracted great attention from the marine engineering community. At present, effective methods to improve the durability of reinforced concrete in the marine environment include the use of high-performance concrete, sprayed concrete protective coatings, and coated steel bars. Among them, concrete coating anticorrosion is a commonly used cost-effective method. In the design of port wharfs and cross-sea bridges, my country clearly stipulates coating anticorrosion requirements for concrete structures. [0003] Anticorrosive coatings for concrete coatings cannot be used for anticorrosion coatings for steel stru...

AI Technical Summary

Problems solved by technology

The thickness of these coatings is thin in one application and requires multiple applications. The coating has poor adhesion, chloride ion penetration resistance, and low elongation, which cannot meet the long-term anti-corrosion requirements of marine concrete.

[0005] U.S. U.S. Heavy Duty Anti-corrosion Company produces high-elastic epoxy coatings, which are also used in anti-corrosion of marine concrete structures, but no information about the invention can be found