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A kind of slow-release anti-cracking repair material and preparation method thereof

A repair material and slow-release technology, applied in the field of slow-release anti-crack repair materials and their preparation, can solve the problems of poor compatibility, high cost, poor repair effect, etc., achieve good compatibility, convenient operation, and inhibit early cracking effect

Active Publication Date: 2019-12-10
SHIJIAZHUANG TIEDAO UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] A slow-release anti-crack repair material and its preparation method are provided to solve the problems of poor compatibility with the matrix, poor repair effect and high cost in the repair materials in the prior art.

Method used

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  • A kind of slow-release anti-cracking repair material and preparation method thereof

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preparation example Construction

[0036] In one embodiment, the preparation method at least includes the following steps:

[0037] (1) Weigh each component according to the raw material ratio of the slow-release anti-crack repair material;

[0038] (2) Mixing the calcium source component and the coating component to obtain the first mixed material;

[0039] (3) Mixing the first mixed material with the circulation repair component and the coagulation accelerator component to obtain a slow-release anti-crack repair material.

[0040] The above-mentioned preparation method is further explained below:

[0041] Preferably, in the step (2), the stirring rate of the mixing treatment is 500-800r / min, and the time is 5-10min; in the step (3), the stirring rate of the mixing treatment is 600-900r / min , the time is 5-8min, so that the components are fully mixed.

[0042] The method has the advantages of simple preparation process, convenient operation and low cost, and can be widely popularized.

Embodiment 1

[0045] A slow-release anti-crack repair material, comprising the following components by weight:

[0046] 64 parts of calcium oxide; 11 parts of sodium stearate; 1.4 parts of sodium gluconate; 16 parts of calcium hydrogen phosphate; 7.6 parts of sodium silicate.

[0047] The preparation steps of the slow-release anti-crack self-healing material described in this example are:

[0048] (1) Weigh each component according to the raw material ratio of the slow-release anti-crack repair material;

[0049] (2) Mix calcium oxide and sodium stearate, and stir at 500r / min for 10min to obtain the first mixed material;

[0050] (3) The first mixed material was mixed with sodium gluconate, calcium hydrogen phosphate, and sodium silicate, and stirred at 600 r / min for 8 minutes to obtain a slow-release anti-crack repair material.

Embodiment 2

[0052] A slow-release anti-crack repair material, comprising the following components by weight:

[0053] 40 parts of calcium sulfoaluminate, 30 parts of calcium oxide, 12 parts of sodium stearate, 1 part of sodium gluconate, 12 parts of calcium hydrogen phosphate; 5 parts of sodium silicate.

[0054] The preparation steps of the slow-release anti-crack self-healing material described in this example are:

[0055] (1) Weigh each component according to the raw material ratio of the slow-release anti-crack repair material;

[0056] (2) Mix calcium sulfoaluminate, calcium oxide and sodium stearate, and stir at 700 r / min for 7 minutes to obtain the first mixed material;

[0057] (3) The first mixed material was mixed with sodium gluconate, calcium hydrogen phosphate, and sodium silicate, and stirred at 900 r / min for 5 minutes to obtain a slow-release anti-crack repair material.

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Abstract

The invention relates to the technical field of building materials, and specifically discloses a slow-release anti-crack repair material and a preparation method thereof. The slow-release anti-crack repair material includes the following components by weight: 60-75 parts of calcium source components, 10-20 parts of coating components, 10-20 parts of circulation repair components, and 5-20 parts of coagulation-promoting components. 10 servings. The slow-release anti-crack repairing material provided by the invention has good compatibility with the matrix, low cost, and simple construction, can effectively enhance the crack resistance of cement-based materials, and can quickly repair cracks by itself after cracks occur in the matrix.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a slow-release anti-crack repair material and a preparation method thereof. Background technique [0002] Due to the different deformation ability of each component of concrete, cracks will inevitably appear in the process of setting, hardening and use. Many research investigations believe that cracks are caused by deformation (caused by temperature and humidity changes, shrinkage, expansion, etc.) resulting in microscopic cracks inside; and in actual external loads (dynamic, static), environment (temperature and humidity, corrosion) Under the action of other factors, the cracks further expand, harmful substances enter the interior, corrode the steel bars, and finally expand into macro cracks, which reduces the bearing capacity and durability, leads to economic losses, and even casualties. Therefore, the problem of repairing cracks has always been the dire...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/10C04B28/06C04B111/72
CPCC04B28/06C04B28/065C04B28/10C04B2111/72C04B24/085C04B24/10C04B22/16C04B22/00C04B22/064C04B7/32
Inventor 任书霞孙志慧王建雷邹德玉孙秀田孙强吕乐乐师帅桓校
Owner SHIJIAZHUANG TIEDAO UNIV