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Antirust corrosion-resistant concrete and preparation method thereof

A concrete and anti-corrosion technology, applied in the field of anti-rust and anti-corrosion concrete and its preparation, can solve the problems of economic loss, many processes, corrosion of steel structure, etc., and achieve the effect of good anti-rust and anti-corrosion performance and broad application prospects.

Inactive Publication Date: 2021-03-23
陈中华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, reinforced concrete is the most mainstream building structure. However, in the construction of coastal areas and islands and reefs, due to the complexity of the project, long construction time and many processes, most steel structures need to be arranged in advance.
Under the influence of coastal climate and salt spray, the exposed steel bars will corrode a lot in a short period of time, resulting in a decrease in the durability of reinforced concrete and a large amount of economic losses.
For this reason, coatings such as epoxy resin are used for coating protection in engineering, but such coatings seriously reduce the gripping force between steel bars and concrete during later construction, affecting the strength of reinforced concrete structures

Method used

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  • Antirust corrosion-resistant concrete and preparation method thereof

Examples

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Effect test

example 1

[0052] Mix gallic acid and distilled water at a mass ratio of 1:10 to obtain a mixed solution, then add a 30% sodium hydroxymethanesulfonate solution with a mass fraction of half the mass of distilled water to the mixed solution, and keep the reaction at 75°C for 4h, filter , take the filtrate rotary evaporation, concentrated to 20 Baume degrees, to get the concentrate; in parts by weight, add 10 parts of glycidyl methacrylate, 15 parts of epoxy resin E-44, 15 parts of the above-mentioned concentrate and 5 parts of triphenylphosphine are heated to 100°C, stirred and reacted at a speed of 200r / min for 40 minutes, and then discharged to obtain an esterified prepolymerized product, which is set aside; p-phenylenediamine and polyvinyl alcohol Mix butyral at a mass ratio of 1:2 to obtain a mixture, then mix the mixture with acetone and ethyl acetate at a mass ratio of 1:2:3 and stir for 15 minutes to obtain a composite curing agent; take pig bones and put them into a grinder Grindi...

example 2

[0054] Mix gallic acid and distilled water at a mass ratio of 1:10 to obtain a mixed solution, then add a 30% sodium hydroxymethanesulfonate solution with a mass fraction of half the mass of distilled water to the mixed solution, and keep the reaction at 76°C for 4h, filter , get the filtrate rotary evaporation, concentrated to 20 Baume degrees, to get the concentrate; in parts by weight, add 11 parts of glycidyl methacrylate, 16 parts of epoxy resin E-44, 16 parts of the above-mentioned concentrate and 6 parts of triphenylphosphine were heated to 104°C, stirred and reacted at a speed of 220r / min for 44 minutes, and then discharged to obtain an esterified prepolymerized product, which was set aside; p-phenylenediamine and polyvinyl alcohol Mix butyral at a mass ratio of 1:2 to obtain a mixture, then mix the mixture with acetone and ethyl acetate at a mass ratio of 1:2:3 and stir for 16 minutes to obtain a composite curing agent; take pig bones and put them into a grinder Grind...

example 3

[0056] Mix gallic acid and distilled water at a mass ratio of 1:10 to obtain a mixed solution, then add a 30% sodium hydroxymethanesulfonate solution with a mass fraction of half the mass of distilled water to the mixed solution, and heat at 77°C for 4 hours, filter , take the filtrate rotary evaporation, concentrated to 20 Baume degrees, to get the concentrate; in parts by weight, add 13 parts of glycidyl methacrylate, 17 parts of epoxy resin E-44, 17 parts of the above-mentioned concentrate and 7 parts of triphenylphosphine were heated to 110°C, stirred and reacted at a speed of 250r / min for 50 minutes, and then discharged to obtain an esterified prepolymerized product, which was set aside; p-phenylenediamine and polyvinyl alcohol Mix butyral at a mass ratio of 1:2 to obtain a mixture, then mix the mixture with acetone and ethyl acetate at a mass ratio of 1:2:3 and stir for 17 minutes to obtain a composite curing agent; take pig bones and put them into a grinder Grinding in ...

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Abstract

The invention relates to antirust corrosion-resistant concrete and a preparation method thereof, and belongs to the technical field of building material preparation. By adding a self-made esterification pre-polymerization product, a self-made composite curing agent and a self-made multifunctional anti-rust filler, the anti-rust and anti-corrosion concrete prepared by the invention not only can play respective anti-rust and anti-radiation functions among the raw materials, but also can play a synergistic reaction among the raw materials, achieves excellent anti-rust and anti-corrosion properties, and has a wide application prospect.

Description

technical field [0001] The invention relates to an antirust and anticorrosion concrete and a preparation method thereof, belonging to the technical field of building material preparation. Background technique [0002] At present, reinforced concrete is the most mainstream building structure. However, in the construction of coastal areas and islands and reefs, due to the complexity of the project, long construction time and many processes, most steel structures need to be arranged in advance. Under the influence of coastal climate and salt spray, the exposed steel bars will corrode a lot in a short period of time, resulting in a decrease in the durability of reinforced concrete and a large amount of economic losses. For this reason, coatings such as epoxy resin are used for protection in engineering, but such coatings seriously reduce the gripping force between steel bars and concrete during later construction, affecting the strength of reinforced concrete structures. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B24/16C04B24/26C04B20/12C04B111/26
CPCC04B20/12C04B24/166C04B28/04C04B40/0039C04B2111/26C04B24/2623C04B14/28C04B14/185C04B24/121C04B24/2635C04B24/045C04B24/008C04B18/10C04B20/1022C04B20/107C04B20/1018C04B20/1048
Inventor 陈中华
Owner 陈中华
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