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Concrete sulfur-resistant anti-rust corrosion-resistant compacting agent and preparation method thereof

A concrete and compacting agent technology, applied in the field of concrete admixtures, can solve the problems of ineffective protection of coating life, poor concrete durability, concrete structure damage, etc., achieve excellent resistance to chloride ion penetration, maintain construction performance, reduce Overall cost effect

Inactive Publication Date: 2021-02-26
北京富瑞勒斯科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Concrete often suffers from poor durability and deterioration in actual use, especially in humid and acid-alkaline environments. After being in close contact with water, the erosion will aggravate, causing microstructure damage to the concrete structure, and further endangering the internal structure. , causing steel corrosion
The existing prevention and control method is to paint a layer of waterproof paint on the concrete surface, but it can only prevent external moisture erosion, and when the internal moisture is discharged outward, it will damage the protective coating on the surface, and the coating life will not be effective. Assure

Method used

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  • Concrete sulfur-resistant anti-rust corrosion-resistant compacting agent and preparation method thereof
  • Concrete sulfur-resistant anti-rust corrosion-resistant compacting agent and preparation method thereof
  • Concrete sulfur-resistant anti-rust corrosion-resistant compacting agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] This embodiment provides a concrete anti-sulfur, anti-rust, anti-corrosion and compacting agent, which is prepared from the following raw materials:

[0054] Calcium sulfoaluminate, 5 parts by weight;

[0055] Basalt fiber, 1 part by weight;

[0056] Quaternary ammonium salt surfactant, 0.1 parts by weight;

[0057] Sodium silicate, 26 parts by weight;

[0058] Sodium nitrite, 0.1 parts by weight;

[0059] oleic acid, 1 part by weight;

[0060] Polyurethane resin, 0.1 parts by weight;

[0061] Water, 40 parts by weight.

[0062] The preparation method of the concrete anti-sulfur, anti-rust, anti-corrosion compacting agent described in this embodiment comprises the following steps:

[0063] (1) Under heating conditions, add calcium sulfoaluminate to water at 60°C, and stir well;

[0064] (2) Add basalt fiber to the solution obtained in step (1), stir for 8 seconds, after cooling down to 40°C, add a quaternary ammonium salt surfactant, and stir for 15 seconds;

[...

Embodiment 2

[0067] This embodiment provides a concrete anti-sulfur, anti-rust, anti-corrosion and compacting agent, which is prepared from the following raw materials:

[0068] Calcium sulfoaluminate, 8 parts by weight;

[0069] Basalt fiber, 0.1 parts by weight;

[0070] Quaternary ammonium salt surfactant, 1 part by weight;

[0071] Sodium silicate, 18 parts by weight;

[0072] Sodium nitrite, 1 part by weight;

[0073] oleic acid, 0.1 parts by weight;

[0074] Polyurethane resin, 1 part by weight;

[0075] Water, 60 parts by weight.

[0076] The preparation method of the concrete anti-sulfur, anti-rust, anti-corrosion compacting agent described in this embodiment comprises the following steps:

[0077] (1) Under heating conditions, add calcium sulfoaluminate to water at 80°C, and stir well;

[0078] (2) Add basalt fiber to the solution obtained in step (1), stir for 20 seconds, after cooling down to 50°C, add a quaternary ammonium salt surfactant, and stir for 25 seconds;

[00...

Embodiment 3

[0081] This embodiment provides a concrete anti-sulfur, anti-rust, anti-corrosion and compacting agent, which is prepared from the following raw materials:

[0082] Calcium sulfoaluminate, 6.5 parts by weight;

[0083] Basalt fiber, 0.55 parts by weight;

[0084] Quaternary ammonium salt surfactant, 0.55 parts by weight;

[0085] Sodium silicate, 22 parts by weight;

[0086] Sodium nitrite, 0.55 parts by weight;

[0087] Tongoleic acid, 0.55 parts by weight;

[0088] Polyurethane resin, 0.55 parts by weight;

[0089] Water, 50 parts by weight;

[0090] And 20% silicone oil by mass of calcium sulfoaluminate.

[0091] The preparation method of the concrete anti-sulfur, anti-rust, anti-corrosion compacting agent described in this embodiment comprises the following steps:

[0092] (1) Under the heating condition of 90°C, fully mix the sulfoaluminate and silicone oil, then add the mixture of calcium sulfoaluminate and silicone oil into the hot water at 90°C, and stir well; ...

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Abstract

The invention relates to a concrete sulfur-resistant anti-rust corrosion-resistant compacting agent and a preparation method thereof. The concrete sulfur-resistant anti-rust corrosion-resistant compacting agent is prepared from sulfoaluminate, mineral fibers, a surfactant, sodium silicate, sodium nitrite, eleostearic acid, polyurethane resin and water according to a proper proportion. The preparation method comprises the following steps: under a heating condition, dispersing sulfoaluminate in water, adding mineral fibers, uniformly stirring, cooling, adding a surfactant, stirring, mixing, finally adjusting the pH value, adding sodium silicate, sodium nitrite, eleostearic acid and polyurethane resin, and stirring to finally obtain the concrete sulfur-resistant anti-rust corrosion-resistantcompacting agent. When the sulfur-resistant anti-rust corrosion-resistant compacting agent is used in concrete, the sulfur-resistant anti-rust corrosion-resistant performance can be remarkably improved, the waterproof performance is good, the concrete is prevented from cracking, water permeation is effectively prevented, and meanwhile the strength of the concrete can be remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of concrete admixtures, and in particular relates to a concrete anti-sulfur, anti-rust, anti-corrosion compacting agent and a preparation method thereof. Background technique [0002] During the hardening process of concrete, as the cement hydration proceeds, the internal moisture is consumed by the hydration reaction, and a large number of connected capillary pores are formed at the aggregate-slurry interface of hardened concrete; during the drying process, the concrete will shrink in volume, due to Confined concrete is prone to cracking, which exacerbates the danger of leakage. Adding a compacting agent during concrete mixing can improve the impermeability and crack resistance of hardened concrete, so its development plays an important role in engineering applications. [0003] Concrete often suffers from poor durability and deterioration in actual use, especially in humid and acid-alkaline environments. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/28C04B103/61
CPCC04B40/0039C04B2103/61C04B22/148C04B14/4643C04B24/121C04B12/04C04B22/085C04B24/085C04B24/282C04B22/002
Inventor 王镇
Owner 北京富瑞勒斯科技开发有限公司
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