Anti-corrosive and rust-resisting concrete compensation agent and preparation method

A technology of concrete and compensating agent, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of reduced service life of concrete components, unsatisfactory use effect, ecological environment hazards, etc., to prolong the service life , Improve the ability to resist freezing and thawing cycle damage, and have strong adaptability

Inactive Publication Date: 2015-01-28
TIANJIN JINSHENGYUAN SPECIAL BUILDING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For concrete components used in corrosive environments or marine environments, due to the effects of various corrosion conditions and the interaction of various effects, the service life of concrete components will be greatly reduced, and some will directly endanger public safety. The anti-rust problem of metal components in concrete has been gradually paid attention to by those skilled in the art, but the related products on the market have unsatisfactory use effects, and the oxidation of concrete is accelerated in polluted gas environment, sea water or polluted water environment The problem has not been effectively curbed, and the single function of the product has not comprehensively considered anti-corrosion and rust resistance. In the market, some products also use toxic substances such as nitrite, which is extremely harmful to the ecological environment.

Method used

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  • Anti-corrosive and rust-resisting concrete compensation agent and preparation method
  • Anti-corrosive and rust-resisting concrete compensation agent and preparation method
  • Anti-corrosive and rust-resisting concrete compensation agent and preparation method

Examples

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Effect test

example 1

[0036] A concrete anti-corrosion and anti-rust compensation agent, comprising the following components according to the mass fraction ratio:

[0037]

[0038] The application of the above example products improves the strength of concrete at various ages in seawater or polluted water environments, and under the effect of effective resistance to chloride ion penetration, the electric flux and chloride ion diffusion coefficient of concrete at all ages are significantly reduced.

example 2

[0040] A concrete anti-corrosion and anti-rust compensation agent, comprising the following components according to the mass fraction ratio:

[0041]

[0042]

[0043] Both the slag powder (granulated blast furnace slag powder) and the fly ash have a specific surface area of ​​350-400m 2 / kg of powdery solid.

[0044] The potassium monofluorophosphate is a powdery solid of 200-300 mesh.

[0045] The gypsum, alum stone, cement clinker and limestone are all massive solids with a particle diameter of 20-40 mm.

[0046] The above example is a preferred example of the present invention. The example products have improved the strength of concrete at various ages in seawater or polluted water environments, and the compressive strength ratios of 3 days, 7 days, and 28 days have reached 104%, 111% and 108% respectively . Under the effect of effective anti-chloride ion penetration, the electric flux and chloride ion diffusion coefficient of concrete of all ages are significantl...

example 3

[0048] A concrete anti-corrosion and anti-rust compensation agent, comprising the following components according to the mass fraction ratio:

[0049]

[0050] The application of the above example products has improved the strength of concrete at various ages in seawater or polluted water environments, and under the effect of effective resistance to chloride ion penetration, the electric flux and chloride ion diffusion coefficient of concrete at all ages have been significantly reduced. It has obvious anti-rust effect on metal components in concrete, prolonging the service life of metal components.

[0051] The preparation method of the above-mentioned concrete anti-corrosion and anti-rust compensator comprises steps as follows:

[0052] (1) Raw material preparation, including a specific surface area of ​​350-400m 2 / kg of powdered mineral powder (granulated blast furnace slag powder) and fly ash, 200-300 mesh monofluorophosphate, and massive gypsum, alum stone, cement clin...

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Abstract

The invention relates to an anti-corrosive and rust-resisting concrete compensation agent and a preparation method thereof. The compensation agent comprises the following components in parts by weight: 10-20 parts of mineral powder, 10-20 parts of coal ash, 3-5 parts of gypsum, 3-5 parts of aluminite, 1-2 parts of monofluorophosphate, 1-2 parts of cement clinker and 3-5 parts of limestone. The method comprises the steps of (1) preparing raw materials; (2) smashing massive gypsum, aluminite, cement clinker and limestone to be 20-40mm, homogenizing, and then standing in a store shed for one month; (3) conveying the massive gypsum, aluminite, cement clinker and limestone into a ball mill according to mass ratio, and smashing; and (4) mixing and stirring the mixed powder subjected to ball milling and the mineral powder, the coal ash as well as monofluorophosphate powder to obtain a finished product. By using the product provided by the invention, the strength of different periods of concrete in seawater or polluted water environment can be improved, the anti-permeability capability is improved, and meanwhile, the service life of a metal component is prolonged.

Description

technical field [0001] The invention belongs to the technical field of concrete anticorrosion and antirust of metal components in concrete, in particular to a concrete anticorrosion and antirust compensation agent and a preparation method thereof. Background technique [0002] For concrete components used in corrosive environments or marine environments, due to the effects of various corrosion conditions and the interaction of various effects, the service life of concrete components will be greatly reduced, and some will directly endanger public safety. The anti-rust problem of metal components in concrete has been gradually paid attention to by those skilled in the art, but the related products on the market have unsatisfactory use effects, and the oxidation of concrete is accelerated in polluted gas environment, sea water or polluted water environment The problem has not been effectively curbed, and the single function of the product has not given comprehensive considerati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B18/30C04B22/16C04B111/20C04B111/24
CPCY02W30/91
Inventor 史发兴周祥文田步生
Owner TIANJIN JINSHENGYUAN SPECIAL BUILDING MATERIALS
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