Preparation method of hydrophobic mortar

A technology of water-repellent sand and water-repellent agent, applied in the field of liquid waterproofing agent, can solve the problems of unstable construction quality, influence on waterproofing quality, many human factors, etc., achieve obvious social and economic benefits, improve living environment, and ease Good performance and construction

Inactive Publication Date: 2020-04-24
江苏瓦楷新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, there are many human factors in the selection of admixtures, the ratio and measurement of admixtures, mixing methods, and operation sequences, so that the construction quality is unstable and irregular, which affects the waterproof quality.

Method used

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  • Preparation method of hydrophobic mortar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Take the following raw materials in parts by weight: cement 20; aggregate 50; coal ash powder 15; slag 0.2; naphthalene-based water reducer 0.25; Latex powder 0.23.

[0024] 1. Quantitatively inject hot water into the stirred tank, and the water temperature is 75°C.

[0025] 2. Quantitatively put coal ash powder and slag into the above water, and stir to make the solution evenly mixed.

[0026] 3. Quantitatively add aggregate to the solution obtained in step (2) while stirring, and stir for 2 hours.

[0027] 4. At a temperature of 22°C, add naphthalene-based water reducer, stir, and place for 1.5 hours.

[0028] 5. At a temperature of 10°C, add aliphatic water reducer, water repellent, cellulose ether, redispersible latex powder, and cement quantitatively while stirring, and stir for 0.8 hours.

[0029] 6. Use 20% potassium hydroxide or sodium hydroxide solution to adjust the pH value of the waterproof solution within the range of 11.

Embodiment 2

[0031] Take the following raw materials in parts by weight: cement 30; aggregate 70; coal ash powder 30; slag 1; naphthalene-based water reducer 0.5; Latex powder 0.46.

[0032] 1. Quantitatively inject hot water into the stirred tank, and the water temperature is 80°C.

[0033] 2. Quantitatively put coal ash powder and slag into the above water, and stir to make the solution evenly mixed.

[0034] 3. Quantitatively add aggregate to the solution obtained in step (2) while stirring, and stir for 2.5 hours.

[0035] 4. At a temperature of 30°C, add naphthalene-based water reducer, stir, and place for 1.5 hours.

[0036] 5. At a temperature of 30°C, add aliphatic water reducer, water repellent, cellulose ether, redispersible latex powder, and cement quantitatively while stirring, and stir for 0.8 hours.

[0037] 6. Use 20% potassium hydroxide or sodium hydroxide solution to adjust the pH value of the waterproof solution within 10.

Embodiment 3

[0039] Take the following raw materials in parts by weight: cement 30; aggregate 50; coal ash powder 30; slag 0.2; naphthalene-based water reducer 0.25; Latex powder 0.23.

[0040] 1. Quantitatively inject hot water into the stirred tank, and the water temperature is 100°C.

[0041] 2. Quantitatively put coal ash powder and slag into the above water, and stir to make the solution evenly mixed.

[0042] 3. Quantitatively add aggregate to the solution obtained in step (2) while stirring, and stir for 5 hours.

[0043] 4. At a temperature of 50°C, add naphthalene-based water reducer, stir, and place for 3 hours.

[0044] 5. At a temperature of 50°C, add aliphatic water reducer, water repellent, cellulose ether, redispersible latex powder, and cement quantitatively while stirring, and stir for 5 hours.

[0045] 6. Use 20% potassium hydroxide or sodium hydroxide solution to adjust the pH value of the waterproof solution within the range of 9.

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Abstract

The cement mortar is a main construction material in the construction industry, but the problem of water leakage is difficult to solve when cement concrete and cement mortar are used, and various measures are adopted in engineering in order to prevent the water leakage phenomenon in cement buildings. One of the methods is a method for adding an admixture into a cement building material. The heat preservation and insulation building built through the method is not cold in winter and not hot in summer indoors, the living environment is greatly improved, energy is saved, various indexes, especially the hydrophobicity index, are located at the domestic advanced level, and obvious social benefits and economic benefits are achieved.

Description

technical field [0001] The invention relates to a liquid waterproofing agent for cement mortar or concrete and a production method thereof, in particular to a preparation method of hydrophobic mortar. Background technique [0002] Cement mortar is the main construction material in the construction industry, but it is difficult to solve the problem of water leakage when using cement concrete and cement mortar. In order to prevent the occurrence of water leakage in cement buildings, various measures have been adopted in engineering. One of them is the method of adding admixtures in cement building materials. At present, the main components of admixtures for waterproofing include organic materials such as fatty acid soap, synthetic rubber, asphalt, and acrylate, and inorganic materials such as sodium silicate, fly ash, and talcum powder. This waterproof method has the problem that it depends largely on the skills of the construction personnel and cannot be standardized during ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B28/08C04B111/27
CPCC04B28/04C04B28/08C04B2111/27C04B2201/50C04B14/06C04B2103/302C04B2103/65C04B2103/0057C04B18/141C04B18/10
Inventor 郑加专郑道泽
Owner 江苏瓦楷新材料科技有限公司
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