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A kind of concrete anticorrosion agent and preparation method thereof

An anti-corrosion agent and concrete technology, applied in the field of concrete, can solve the problems of social resource waste and economic loss, and achieve the effects of delaying the corrosion of steel bars, improving the carbonization resistance and structural stability.

Active Publication Date: 2021-07-23
GUILIN UNIVERSITY OF TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Corrosion of steel bars has become the main reason for threatening structural safety, not only causing serious economic losses, but also causing a waste of social resources

Method used

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  • A kind of concrete anticorrosion agent and preparation method thereof
  • A kind of concrete anticorrosion agent and preparation method thereof
  • A kind of concrete anticorrosion agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A concrete anticorrosion agent, which is made of the following components by weight percentage: TK-PCA type polycarboxylic acid series high-performance water reducer 3%, hydroxyl-terminated hyperbranched polyamide ester 3%, fatty acid acyldiethanolamine 0.5%, nanometer two Silicon oxide 2%, hydroxypropyl methylcellulose 1.2%, isooctyltriethoxysilane 0.15%, triethanolamine 0.1%, and the balance is fly ash.

[0025] The average particle size of nano-silica is 50nm; the average particle size of fly ash is 80μm.

[0026] The preparation method of the anticorrosion agent for concrete comprises the following steps: firstly mix polycarboxylate water reducer, hydroxypropyl methylcellulose, fatty acyldiethanolamine, triethanolamine and fly ash evenly to obtain premixed powder; The premixed powder, hydroxyl-terminated hyperbranched polyamide ester, nano silicon dioxide, and isooctyltriethoxysilane are placed in a high-speed mixer and mixed evenly to obtain the concrete corrosion ...

Embodiment 2

[0028] A concrete anti-corrosion agent, made of the following ingredients in weight percentage: 6% of SP-40 type polycarboxylate high-performance water reducer, 2% of hydroxyl-terminated hyperbranched polyamide ester, 0.2% of fatty acid acyldiethanolamine, nanometer two Silicon oxide 3%, hydroxypropyl methylcellulose 0.5%, isooctyltriethoxysilane 0.2%, triethanolamine 0.15%, and the balance is fly ash.

[0029] The average particle diameter of the nano silicon dioxide is 30nm; the average particle diameter of the fly ash is 10μm.

[0030] The preparation method of concrete corrosion inhibitor is the same as embodiment 1.

Embodiment 3

[0032] A concrete anticorrosion agent, which is made of the following ingredients in weight percentage: 5% of SP-40 type polycarboxylic acid series high-performance water reducing agent, 4.8% of hydroxyl-terminated hyperbranched polyamide ester, 0.6% of fatty acid acyldiethanolamine, nanometer two Silicon oxide 2%, hydroxypropyl methylcellulose 1.6%, isooctyltriethoxysilane 0.1%, triethanolamine 0.2%, and the balance is fly ash.

[0033] The average particle size of nano-silica is 60nm; the average particle size of fly ash is 50μm.

[0034] The preparation method of concrete corrosion inhibitor is the same as embodiment 1.

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Abstract

The invention discloses a concrete anticorrosion agent and a preparation method thereof, and relates to the technical field of concrete. The concrete anticorrosion agent is made of the following components in weight percent: polycarboxylate water reducer 3-6%, hydroxyl-terminated hyperbranched polyamide ester 2‑4.8%, fatty acid diethanolamine 0.2‑0.6%, nano silicon dioxide 1‑3%, hydroxypropyl methylcellulose 0.5‑1.6%, isooctyltriethoxysilane 0.1‑0.2%, triethanolamine 0.1‑0.2%, the balance is fly ash. The concrete anti-corrosion agent prepared by the invention has good overall stability, can effectively improve the anti-carbonation, anti-seepage and anti-freeze properties of concrete, and has excellent anti-corrosion performance.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a concrete anticorrosion agent and a preparation method thereof. Background technique [0002] Concrete is the most important and widely used basic building material in the field of modern architecture. Reinforced concrete is widely used in building structures because of its excellent performance. Therefore, it is very important and necessary to study the durability and corrosion resistance of concrete. However, due to the current natural environmental factors, construction factors, etc., concrete has problems early before reaching the service life, which affects normal use. [0003] The durability of reinforced concrete is a problem faced by the whole world. Steel corrosion, chemical corrosion, concrete carbonation, freeze-thaw damage, alkali-aggregate reaction, etc. will cause insufficient structural durability, but the main reason for accelerated concrete damage is steel cor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/38C04B103/61C04B103/65C04B103/60
CPCC04B40/0039C04B2103/601C04B2103/61C04B2103/65C04B2103/302C04B24/287C04B24/122C04B22/124C04B14/06C04B24/383C04B24/42C04B22/0006
Inventor 明阳陈平李玲潘格林陈新甘国兴刘荣进陈宣东赵艳荣韦家崭
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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