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Concrete micro-crack sealing material as well as preparation method and application thereof

A concrete and micro-crack technology, applied in the field of pavement repair materials, can solve the problems of complex construction technology, long open traffic time, and insufficient bonding ability

Inactive Publication Date: 2019-11-22
湖南峰航新材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Organic repair materials include ordinary epoxy resin, rubber asphalt, etc. These materials have disadvantages such as poor durability and complicated construction technology
Inorganic repair materials are generally prepared by mixing cement with admixtures, but they have defects such as insufficient bonding ability, long curing period, and long open traffic time.

Method used

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  • Concrete micro-crack sealing material as well as preparation method and application thereof
  • Concrete micro-crack sealing material as well as preparation method and application thereof
  • Concrete micro-crack sealing material as well as preparation method and application thereof

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preparation example Construction

[0045] The present invention also provides a preparation method of the concrete micro-crack sealing material described in the above technical solution, comprising the following steps:

[0046] mixing part of the water, the catalyst and the silica sol to obtain an initial mixture;

[0047] mixing the remaining water, the coupling agent and the wetting agent to obtain a premix;

[0048] mixing the primary mix, the epoxy resin and the homogenate to obtain the concrete micro-crack sealing material;

[0049] The part by weight of the water used is the same as the part by weight of the silica sol.

[0050]The present invention mixes part water, described catalyzer and described silica sol, obtains primary mix; In the present invention, the weight part that described part water is used is identical with the weight part of described silica sol; The present invention is to described mixing The order is not limited in any particular way. In the present invention, the mixing is prefer...

Embodiment 1

[0062] The concrete micro-crack sealing material includes: 1.5 parts of sodium metaaluminate catalyst with a mass concentration of 35%, 100 parts of silica sol (particle diameter 16nm, density 1.13g / cm 3 ), modified epoxy resin BEOGE 200 parts, water 140 parts, silane coupling KH5502 parts, silicone wetting agent F1403 parts.

[0063] The preparation method is:

[0064] Stir and mix 100 parts of water, catalyst, and silica sol at 800 r / min for 30 minutes, and let stand for 20 minutes to obtain the initial mixture;

[0065] Stir and mix 40 parts of water, coupling agent, and wetting agent at 100 r / min for 10 minutes, and let stand for 20 minutes to obtain a premix;

[0066] The primary mixture and the epoxy resin were stirred and mixed at 500 r / min for 10 minutes, and then mixed with the premix to obtain a concrete micro-crack sealing material.

Embodiment 2

[0068] The concrete micro-crack sealing material includes: 1.8 parts of sodium metaaluminate catalyst with a mass concentration of 30%, 120 parts of silica sol (particle diameter 16nm, density 1.13g / cm 3 ), 240 parts of modified epoxy resin BEOGE, 140 parts of water, 2.5 parts of silane coupling KH550, and 3.5 parts of silicone wetting agent F140.

[0069] The preparation method is:

[0070] Stir and mix 100 parts of water, catalyst, and silica sol at 1000 r / min for 20 minutes, and let stand for 20 minutes to obtain the initial mixture;

[0071] Stir and mix 40 parts of water, coupling agent and wetting agent at 200r / min for 10min, and let stand for 20min to obtain a premix;

[0072] The primary mixture and the epoxy resin were stirred and mixed at 800 r / min for 10 minutes, and then mixed with the premix to obtain a concrete micro-crack sealing material.

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Abstract

The invention relates to the technical field of pavement patching materials. The invention relates to the field of sealing materials, in particular to a concrete micro-crack sealing material and a preparation method and an application thereof, and the concrete micro-crack sealing material provided by the invention comprises the following components in parts by weight: 1-2 parts of catalyst, 100-150 parts of silica sol, 200-300 parts of epoxy resin, 2-4 parts of coupling agent, 3-5 parts of wetting agent and 140-200 parts of water. The concrete micro-crack sealing material disclosed by the invention has the advantages of high permeability, high strength and good compatibility with concrete, can greatly improve the surface strength of the concrete, and has excellent corrosion resistance andwaterproofness. The concrete micro-crack sealing material is non-toxic and pollution-free in production and use processes, and belongs to a green and environment-friendly product. After the concrete micro-crack sealing material is used for repairing concrete cracks, the service life of a concrete structure can be effectively prolonged (1-5 years).

Description

technical field [0001] The invention relates to the technical field of road surface repair materials, in particular to a concrete micro-crack sealing material and its preparation method and application. Background technique [0002] Cement-based materials are a kind of inorganic non-metallic materials, which play an important role in the national economy, especially in the pavement structure, the cement concrete pavement composed of cement-based materials still occupies a large proportion. The deterioration of cement-based materials is a relatively common phenomenon in structural engineering. Except for early cracking, other causes of deterioration and durability decline basically start from the surface of cement-based materials. First, the surface sealing performance decreases, and then The internal structure is eroded by harmful substances, which eventually leads to the destruction of the entire structure, and the main reason for the decline in surface sealing performance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/24C04B111/72
CPCC04B28/24C04B2111/72C04B22/0093C04B24/281C04B24/005C04B24/42
Inventor 李孝荣吴永根赵志红李皓然袁航
Owner 湖南峰航新材料科技有限公司