Concrete surface protection system

A technology for concrete surface and protection system, applied in coating and other directions, can solve the problems of inability to guarantee long-term waterproof requirements of concrete structures, limited waterproof ability, complicated preparation process, etc., to maintain natural texture and texture, excellent waterproof, and improve anti-corrosion. Effect

Active Publication Date: 2015-04-22

CHONGQING JINHONG CONSTR ENG

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Problems solved by technology

However, the emulsion described in this patent needs to be prepared by a high-pressure emulsifier, which consumes a lot of energy

[0005] Patent CN102134443A discloses a concrete protective agent containing silicone resin emulsion, siloxane additive and potassium methyl silicate, but the material contains a large amount of deionized water, which will seriously affect the construction effect of the material on the facade structure, and must be Repeated application for many times, and the waterproof ability of this material is limited, so it cannot guarantee the long-term waterproof requirements of concrete structures

[0006] Patent CN200710187907.3 discloses a silicone waterproof emulsion for building surfaces, which is modified silic...

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Abstract

The invention belongs to the field of protection of concrete surfaces and relates to a durable and corrosion-proof concrete surface protection system. The protection system comprises four parts, namely, a priming paint, an inter paint, a finish paint and a finish-coat paint, wherein the priming paint mainly comprises a silane emulsion, a siloxane emulsion, a dispersant, a corrosion-resistant agent and water; the inter paint mainly comprises a silicon resin emulsion, a siloxane emulsion, a coalescing agent, a dispersant, a corrosion-resistant agent and water; the finish paint mainly comprises a silicon resin emulsion, an acrylic emulsion and/or a modified acrylic emulsion, a dispersant, a corrosion-resistant agent, a coalescing agent and water; and the finish-coat paint mainly comprises a fluorine-silicone resin polymer, a dispersant, a corrosion-resistant agent, a coalescing agent and water. The protection system can be immersed at 3-8mm from the concrete surface and is cured and cross-linked to form a protective layer, and the protection system has the advantages of excellent air permeability, water-repellent property, immersion resistance, weather resistance, freeze-thawing resistance and corrosion resistance; by the protection system, early carbonation and morbid change of concrete are prevented, the weather resistance is improved and the durability and practicability of concrete are prolonged.

Application Domain

Coatings

Technology Topic

Silicone resinCorrosion prevention +5

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Examples

Experimental program(12)
Effect test(1)

Example Embodiment

[0032] Example 1 Preparation of primer

[0033] The primer mainly consists of the following components in parts by weight:

[0034] Methyltriethoxysilane 55 g;

[0035] Polymethyltriethoxysiloxane 15 g;

[0036] Sodium lauryl sulfate 2 g;

[0037] 1,2-Benzisothiazolin-3-one 1 g.

[0038] The preparation method is specifically:

[0039] At room temperature, first mix sodium lauryl sulfate and an appropriate amount of water to obtain solution I. Disperse polymethyltriethoxysiloxane into solution I to obtain solution II. Solution II is stirred at 1000 rpm Stir for 15 minutes, and then keep the same stirring speed. Add methyltriethoxysilane to solution II at a rate of 3-5 drops per second. After the addition is complete, solution III is obtained. Add anti-corrosion to solution III. The agent 1,2-benzisothiazolin-3-one is then stirred at 1000 rpm for 45 minutes.

Example Embodiment

[0040] Example 2 Preparation of primer

[0041] The primer mainly consists of the following components in parts by weight:

[0042] Isobutyl triethoxysilane 75g;

[0043] Polymethyltriethoxysiloxane 25 g;

[0044] Sodium lauryl sulfate 3 g;

[0045] 1,2-Benzisothiazolin-3-one 2 g.

[0046] The preparation method is specifically:

[0047] At room temperature, first mix the dispersant sodium lauryl sulfate and an appropriate amount of water to obtain solution I. Disperse polymethyltriethoxysiloxane into solution I to obtain solution II. Solution II is set at 2000 rpm The stirring speed is first stirred for 20 minutes, and then the same stirring speed is maintained. Isobutyltriethoxysilane is added dropwise to solution II at a rate of 3-5 drops per second. After the addition is completed, solution III is obtained. Add to solution III The preservative 1,2-benzisothiazolin-3-one is then stirred at 2000 rpm for 30 minutes.

Example Embodiment

[0048] Example 3 Preparation of primer

[0049] The primer mainly consists of the following components in parts by weight:

[0050] 25 g of methyl triethoxy silane, 50 g of isobutyl triethoxy silane;

[0051] Polymethyltriethoxysiloxane 10 g, cyclomethicone 10 g;

[0052] Sodium lauryl sulfate 4 g;

[0053] 1,2-Benzisothiazolin-3-one 3 g.

[0054] The preparation method is specifically:

[0055] At room temperature, first mix the dispersant sodium lauryl sulfate and an appropriate amount of water to obtain solution I. Disperse polymethyltriethoxysiloxane and cyclomethicone into solution I to obtain Solution II and Solution II were stirred for 20 minutes at a stirring speed of 2000 rpm, and then the same stirring speed was maintained, and methyltriethoxysilane and isobutyltriethoxy were added dropwise to solution II at a rate of 3-5 drops per second The mixed solution of silane, the solution III is obtained after the dripping is completed, the preservative 1,2-benzisothiazolin-3-one is added to the solution III and then stirred at 2000 rpm for 30 minutes.

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Description & Claims & Application Information

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Classification and recommendation of technical efficacy words

Good waterproof

Concrete surface protection system

AI-Extracted Technical Summary

Problems solved by technology

Abstract

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Examples

Example Embodiment

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Example Embodiment

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Description & Claims & Application Information

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