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Composite concrete waterproofing agent

A technology of concrete waterproofing agent and bentonite, which is applied in the field of concrete composite waterproofing agent and building material additives. It can solve the problems of not being able to compensate for concrete shrinkage cracks, adverse effects on concrete strength, and affecting concrete waterproofing performance, so as to improve impermeability and waterproofing performance. Compactness and compressive strength, the effect of improving frost resistance

Inactive Publication Date: 2013-01-16
苏州市德莱尔建材科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Silicone waterproofing agent achieves waterproofing by forming a hydrophobic molecular layer, which has a single function and cannot compensate the shrinkage cracks of concrete, which affects the waterproof performance of concrete
The waterproof mechanism of inorganic aluminum salt waterproofing agent is to form dense concrete to realize impermeability and waterproofing, but it has an adverse effect on the strength of concrete, and it is difficult to control the construction quality

Method used

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  • Composite concrete waterproofing agent
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Embodiment Construction

[0014] The weight proportion of table 1 embodiment 1-embodiment 3

[0015]

[0016] The above-mentioned polyvinyl alcohol is polyvinyl alcohol 1799, and its purity is technical grade.

[0017] The particle size range of the above-mentioned silica particles is 200-500 mesh.

[0018] The particle size of the above-mentioned bentonite particles is greater than 50 mesh.

[0019] The preparation method of each embodiment is:

[0020] S1 Add tetraethyl orthosilicate, stearic acid, phenyl salicylate, polyvinyl alcohol, and alum into the reaction kettle, control the temperature at 60~70°C and stir for 0.5 hours to make the mixture uniform;

[0021] S2 Continue to add propylene glycol, silicon dioxide, bentonite, sodium fluorosilicate, and sodium dodecylsulfonate to the mixture obtained in S1, control the temperature at 50±2°C, and stir for 1 to 2 hours.

[0022] S3 Add perfluorooctyltriethoxysilane, silk white powder, and polyoxyethylene fatty alcohol ether to the mixture obtain...

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Abstract

The invention provides a composite concrete waterproofing agent and belongs to the technical field of additives in building materials. The composite concrete waterproofing agent comprises the following components in parts by weight: 20-40 parts of tetraethyl orthosilicate, 3-6 parts of stearic acid, 5-15 parts of phenyl salicylate, 5-10 parts of polyvinyl alcohol, 0.5-2 parts of alum, 0.5-1 part of perfluorinated octyltriethoxysilane, 1-2 parts of silk white powder, 4-8 parts of sodium fluosilicate, 1-3 parts of sodium dodecyl sulfate, 1-3 parts of kaolin, 1-3 parts of polyxyethylated alcohol, 8-20 parts of propanediol, 10-30 parts of silicon dioxide and 4-10 parts of bentonite. According to the composite concrete waterproofing agent disclosed by the invention, the performances of resisting permeability and water can be remarkably improved, the compactness and the pressive strength and the like are improved and the work performance of the concrete is improved. In addition, the composite concrete waterproofing agent has the characteristics of safety, no toxicity and no corrosion.

Description

technical field [0001] The invention relates to a waterproofing agent, in particular to a composite concrete waterproofing agent with functions of reducing water and antifreezing, which belongs to building material additives. Background technique [0002] With the development of the construction industry, impermeability and waterproofing have become an important practical function of buildings. The traditional concrete waterproofing agent has many problems, such as large dosage, difficult maintenance, high total alkali content, pumping, drying shrinkage cracking and leakage during use. Mainly organosilicon and inorganic aluminum salts. Silicone waterproofing agent achieves waterproofing by forming a hydrophobic molecular layer, which has a single function and cannot compensate the shrinkage cracks of concrete, which affects the waterproof performance of concrete. The waterproof mechanism of inorganic aluminum salt waterproofing agent is to form dense concrete to realize im...

Claims

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Application Information

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IPC IPC(8): C04B24/42C04B103/65
Inventor 计慷
Owner 苏州市德莱尔建材科技有限公司
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