Concrete leakage-proof paste, and preparation method and application thereof

A concrete and anti-leakage technology, applied in the field of building materials, can solve the problems of insufficient reliability of impermeability test data, no further improvement of sealing materials, failure of impermeability test, etc., to meet impermeability requirements and reduce the possibility of water seepage , the effect of reducing the risk of failure

Active Publication Date: 2017-05-31
中建西部建设西南有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above are the sealing materials and sealing methods mainly used in the concrete impermeability test, which have certain limitations, the sealing effect is not good, and the leakage of the seal is very easy to cause the failure of the impermeability test, and the reliability of the impermeability test data not high enough
[0003] At present, the impermeability test mainly adopts the sealing method suggested in the standard GB50082-2009. Although the standard mentions that a more reliable method can be used, due to the influence of the test standard guidance, the sealing material and sealing method have not been further improved at present, and the sealing method is still used. The sealing method clearly stated in the standard conducts the impermeability test

Method used

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  • Concrete leakage-proof paste, and preparation method and application thereof
  • Concrete leakage-proof paste, and preparation method and application thereof
  • Concrete leakage-proof paste, and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1～6

[0028] A concrete anti-leakage paste, including cement, coagulant, flocculant and binder, expansion agent and water, the raw materials are: 10-15% of cement, 2-4% of coagulant, and 3.5% of flocculant ~6%, binder 20~25%, expansion component 45~60%, water 5~13%. Table 1 shows the composition of the concrete leak-proof paste described in Examples 1 to 6 of the present invention and the ratio of each component, wherein each component is a mass percentage.

[0029] Table 1

[0030]

[0031]

[0032] The preparation method of above-mentioned concrete anti-leakage paste, main steps are as follows:

[0033] 1) According to the proportioning described in Table 1, after the above raw materials are measured, set aside;

[0034] 2) Add the cement and coagulant in the cement component to the binder at room temperature, and stir for 3 to 5 minutes until the powder is completely dispersed in the binder to obtain a mixture; the flocculant in the cement component Dissolve completely i...

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Abstract

The invention discloses a concrete leakage-proof paste, which is mainly prepared from the following raw materials in percentage by mass: 10 to 20 percent of cement, 2 to 5 percent of coagulant, 3 to 8 percent of flocculant, 20 to 25 percent of binder, 45 to 60 percent of expansion component, and 5 to 15 percent of water. The concrete leakage-proof paste can be applied in a sealing material for a concrete permeability resistance test, also can be applied in a crack repair anti-seepage structure in engineering, has a good sealing anti-seepage effect and stable performance, and can fully meet the anti-seepage requirement.

Description

technical field [0001] The invention relates to a concrete leak-proof paste and its preparation method and application, belonging to the field of building materials. Background technique [0002] The impermeability test is mainly used to detect the waterproof performance of concrete after hardening to determine its impermeability grade. At present, the national standard GB50082-2009 "Ordinary Concrete Long-Term Performance and Durability Method Standard" describes that the sealing material used in the concrete impermeability test is usually mixed with cement mixed with butter, or paraffin mixed with a small amount of rosin. Among them, paraffin wax and rosin are the most common sealing materials. The sealing method is to heat and mix paraffin wax and rosin in an oven at 60°C, and apply the melted paraffin wax and rosin mixture evenly on the cone surface of the impermeability test block, and wait until the temperature drops to room temperature. After the paraffin rosin mixtu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/27C04B111/72
CPCC04B28/04C04B2111/00672C04B2111/27C04B2111/72C04B22/08C04B24/122C04B24/2652C04B24/26C04B24/281C04B14/104C04B22/066C04B22/124C04B22/064C04B22/142
Inventor 兰聪陈景甘戈金刘永道祝云
Owner 中建西部建设西南有限公司
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