Silane impregnation paste used for concrete anticorrosion, and production method thereof

A silane impregnation and concrete technology, which is applied in the field of concrete anti-corrosion silane impregnation paste and its preparation, can solve the problems of difficult to achieve penetration effect, loss of active components, difficult to achieve penetration, etc., achieve superior alkali resistance, reduce absorption, The effect of large penetration depth

Inactive Publication Date: 2017-12-26
CARBON COMPOSITESTIANJIN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, high-performance concrete has been widely used in major projects such as marine engineering, hydraulic engineering, and bridges, but high-performance concrete has high compactness. Silane impregnating agents are generally divided into liquid silane and paste silane. Silane products, during the concrete surface impregnation process, its active components are easy to lose on the vertical surface, the contact time between these liquids and the concrete surface is very short, often only a few seconds, it is difficult to achieve effective penetration
Therefore, it is difficult for liquid silane to achieve the ideal penetration effect on high performance concrete

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The invention provides a technical solution: a silane impregnated paste for concrete anticorrosion, comprising the following components by weight: 35 parts of silane monomer, 1 part of emulsifier, 0.5 part of emulsification stabilizer, 15 parts of deionized water, 1 part thickener, 0.05 part defoamer, 1 part preservative, 1 part dispersant.

[0021] Wherein, the silane monomer includes monosilane and disilane; the emulsifier is sec-octylphenol polyoxyethylene ether; the thickener is hydroxypropyl methylcellulose or polyacrylamide.

[0022] A preparation method for concrete anticorrosion silane impregnation paste, comprising the following steps:

[0023] S1: Raw material weighing, all the raw materials needed to be used are weighed and taken according to the proportion;

[0024] S2: Configure the base material, put the weighed silane monomer, deionized water, defoamer, preservative and dispersant into the closed reaction equipment for mixing and stirring, and heat it. T...

Embodiment 2

[0028] The invention provides a technical solution: a silane impregnated paste for concrete anticorrosion, comprising the following components by weight: 45 parts of silane monomer, 4 parts of emulsifier, 1.2 parts of emulsification stabilizer, 28 parts of deionized water, 1.5 parts of thickener, 0.6 parts of defoamer, 3 parts of preservative, and 6 parts of dispersant.

[0029] Wherein, the silane monomer includes monosilane and disilane; the emulsifier is sec-octylphenol polyoxyethylene ether; the thickener is hydroxypropyl methylcellulose or polyacrylamide.

[0030] A preparation method for concrete anticorrosion silane impregnation paste, comprising the following steps:

[0031] S1: Raw material weighing, all the raw materials needed to be used are weighed and taken according to the proportion;

[0032] S2: Configure the base material, put the weighed silane monomer, deionized water, defoamer, preservative and dispersant into the closed reaction equipment for mixing and s...

Embodiment 3

[0036] The invention provides a technical solution: a silane impregnated paste for concrete anticorrosion, comprising the following components by weight: 65 parts of silane monomer, 6 parts of emulsifier, 1.5 parts of emulsification stabilizer, 35 parts of deionized water, 2 parts of thickener, 0.1 part of defoamer, 5 parts of preservative, and 8 parts of dispersant.

[0037] Wherein, the silane monomer includes monosilane and disilane; the emulsifier is sec-octylphenol polyoxyethylene ether; the thickener is hydroxypropyl methylcellulose or polyacrylamide.

[0038] A preparation method for concrete anticorrosion silane impregnation paste, comprising the following steps:

[0039] S1: Raw material weighing, all the raw materials needed to be used are weighed and taken according to the proportion;

[0040] S2: Configure the base material, put the weighed silane monomer, deionized water, defoamer, preservative and dispersant into the closed reaction equipment for mixing and stir...

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PUM

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Abstract

The invention discloses a silane impregnation paste used for concrete anticorrosion. The paste comprises, by weight, 35-65 parts of a silane monomer, 1-6 parts of an emulsifier, 0.5-1.5 parts of an emulsification stabilizer, 15-35 parts of deionized water, 1-2 parts of a thickener, 0.05-0.1 part of an antifoaming agent, 1-5 parts of an antiseptic and 1-8 parts of a dispersant. The invention also discloses a production method of the silane impregnation paste for concrete anticorrosion. The production method comprises the following steps: S1, weighing raw materials; S2, preparing a base material; S3, adding ingredients; and S4, carrying cooling treatment. The past can protect concrete from being frosted and being destroyed by seawater and/or deicing salt, greatly reduces the water absorption of capillary tubes, does not affect water vapor permeation, and also has the advantages of large permeation depth, high content of active components, superior alkali resistance, low volatility, water-based environmental protection, good thixotropy, no construction loss, and good adhesion in a surface brush coating.

Description

technical field [0001] The invention relates to the field of concrete anticorrosion ingredients, in particular to a silane impregnated paste for concrete anticorrosion and a preparation method thereof. Background technique [0002] In recent years, my country has been paying great attention to the durability, safety and service life of concrete structures. Most of the erosion damage in and around concrete structures comes from antifreeze salt or seawater salt. The use of silane water repellent for deep impregnation can protect reinforced concrete structures from damage caused by moisture and salt attack for a longer period of time. This technology can effectively improve the durability of the structure and save high maintenance costs. At present, high-performance concrete has been widely used in major projects such as marine engineering, hydraulic engineering, and bridges. However, high-performance concrete has high compactness, and it is difficult for general silane produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/64
Inventor 李新雷
Owner CARBON COMPOSITESTIANJIN CO LTD
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