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Environmentally friendly high-performance corrosion inhibitor for reinforcing steel bars

A steel rust inhibitor, high-performance technology, applied in the field of building construction, can solve problems such as localized corrosion and accelerated corrosion, and achieve the effects of improving performance, slowing down penetration, and avoiding the decline of protection

Inactive Publication Date: 2017-05-10
青建集团股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the amount of incorporation is insufficient, it may cause localized corrosion and accelerate the progress of corrosion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1. An environment-friendly high-performance rust inhibitor for steel bars is made from the following raw materials in parts by weight: 5 parts of sodium benzoate, 5 parts of sodium silicate, 2 parts of gluconic acid, 5 parts of dicyclohexylamine nitrite, powder 4 parts of coal ash, 7 parts of nitrite, 5 parts of sodium hexametaphosphate, 6 parts of diethylenetriamine, 2 parts of sodium molybdate, 2 parts of sodium citrate, 5 parts of sodium monofluorophosphate, 1 part of gluconate, 1 part borate.

[0014] The sodium monofluorophosphate is technical grade, the gluconate is one or both of sodium gluconate, calcium gluconate and zinc gluconate, and the borate is sodium tetraborate.

Embodiment 2

[0015] Embodiment two, an environment-friendly high-performance rust inhibitor for steel bars, made of the following raw materials in parts by weight: 10 parts of sodium benzoate, 7 parts of sodium silicate, 5 parts of gluconic acid, 10 parts of dicyclohexylamine nitrite, powder 8 parts of coal ash, 11 parts of nitrite, 8 parts of sodium hexametaphosphate, 10 parts of diethylenetriamine, 6 parts of sodium molybdate, 3 parts of sodium citrate, 6 parts of sodium monofluorophosphate, 6 parts of gluconate, Borate 3 parts.

[0016] The sodium monofluorophosphate is technical grade, the gluconate is one or both of sodium gluconate, calcium gluconate and zinc gluconate, and the borate is sodium tetraborate.

Embodiment 3

[0017] Embodiment three, an environment-friendly high-performance rust inhibitor for steel bars is made of the following raw materials in parts by weight: 20 parts of sodium benzoate, 8 parts of sodium silicate, 7 parts of gluconic acid, 15 parts of dicyclohexylamine nitrite, powder 12 parts of coal ash, 14 parts of nitrite, 10 parts of sodium hexametaphosphate, 12 parts of diethylenetriamine, 8 parts of sodium molybdate, 4 parts of sodium citrate, 8 parts of sodium monofluorophosphate, 10 parts of gluconate, Borate 5 parts.

[0018] The sodium monofluorophosphate is technical grade, the gluconate is one or both of sodium gluconate, calcium gluconate and zinc gluconate, and the borate is sodium tetraborate.

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PUM

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Abstract

The invention discloses an environmentally friendly high-performance corrosion inhibitor for reinforcing steel bars. The environmentally friendly high-performance corrosion inhibitor for reinforcing steel bars consists of the following raw materials in parts by weight: sodium benzoate 5-20 parts, sodium silicate 5-8 parts, gluconic acid 2-7 parts, dicyclohexyl amine nitrite 5-15 parts, flyash 4-12 parts, nitrite 7-14 parts, sodium hexametaphosphate 5-10 parts, diethylenetriamine 6-12 parts, sodium molybdate 2-8 parts, sodium citrate 2-4 parts, sodium monofluorophosphate 5-8 parts, gluconate 1-10 parts and borate 1-5 parts. The environmentally friendly high-performance corrosion inhibitor for reinforcing steel bars is good in corrosion inhibition effect and does not have bad influence on performance of concrete.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to an environment-friendly and high-performance steel bar rust inhibitor. Background technique [0002] Reinforced concrete is an economical and practical structural material, which is widely used in structures such as bridges, buildings, dams, subsea tunnels and large offshore platforms. Corrosion of steel bars in concrete has become the main factor affecting the durability of reinforced concrete structures. In newly-built reinforced concrete, due to the existence of high-alkalinity pore fluid, a passivation film will be formed on the surface of the steel bar to protect the steel bar. But as time goes by, due to the carbonation of the concrete caused by the intrusion of CO2, the alkalinity of the concrete pore fluid decreases, and the passive film on the surface of the steel bar becomes unstable. If the chloride ions in the surrounding medium penetrate to the surfac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/12C04B103/61
CPCC04B40/0039C04B2103/61
Inventor 王胜王树利
Owner 青建集团股份公司
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