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Concrete waterproof additive

An additive and concrete technology, applied in the field of concrete waterproofing additives, can solve the problems of frequent repairs, wall openings, etc., and achieve the effects of improving compactness, improving protection effect and durability

Pending Publication Date: 2020-04-28
苏州万众建筑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a concrete waterproof additive to solve the problem of frequent repairs due to the problem of cracks in the wall after the water seepage performance is improved but the overall service life is reduced.

Method used

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  • Concrete waterproof additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weighing of raw materials: select 100 parts of silica fume, 50 parts of sodium methyl silanolate, 20 parts of triethoxysilane, 20 parts of organic silicon aqua, 100 parts of calcium carbonate, 10 parts of expansion agent, 10 parts of crosslinking agent, pozzolan 20 parts, 50 parts of ferric chloride, 10 parts of superplasticizer.

[0025] Mixing and stirring of raw materials: add silicon powder, sodium methyl siliconate, triethoxysilane, silicone water, calcium carbonate, 1 / 2 volcanic ash, cross-linking agent and ferric chloride to mix and stir, and perform on-site configuration. Then mix and stir 1 / 2 of the volcanic ash and expansion agent.

[0026] Standing separation of raw materials: After fully dissolving the mixed suspension, let it stand for 2 hours, and separate the solution, then add the silicon powder mixture to the concrete, and then add the expansion agent to add the waterproofing agent of the concrete to improve Sealing effect, and reduce the occurrence of...

Embodiment 2

[0028] Weighing of raw materials: select 150 parts of silica fume, 80 parts of sodium methyl silanolate, 40 parts of triethoxysilane, 30 parts of silicone aqua, 150 parts of calcium carbonate, 15 parts of expansion agent, 15 parts of crosslinking agent, pozzolan 30 parts, 80 parts of ferric chloride, 15 parts of superplasticizer.

[0029] Mixing and stirring of raw materials: add silicon powder, sodium methyl siliconate, triethoxysilane, silicone water, calcium carbonate, 1 / 2 volcanic ash, crosslinking agent and ferric chloride to mix and stir, and configure on site. Then mix and stir 1 / 2 of the volcanic ash and expansion agent.

[0030] Standing separation of raw materials: After fully dissolving the mixed suspension, let it stand for 2.5 hours, and separate the solution, then add the silicon powder mixture to the concrete first, and then add the expansion agent to add the waterproofing agent of the concrete. Improve the sealing effect and reduce the occurrence of expansion ...

Embodiment 3

[0032] Weighing of raw materials: select 200 parts of silica fume, 100 parts of sodium methyl silanolate, 50 parts of triethoxysilane, 40 parts of organic silicon aqua, 200 parts of calcium carbonate, 20 parts of expansion agent, 20 parts of crosslinking agent, volcanic ash 50 parts, 100 parts of ferric chloride, 20 parts of superplasticizer.

[0033] Mixing and stirring of raw materials: add silicon powder, sodium methyl siliconate, triethoxysilane, silicone water, calcium carbonate, 1 / 2 volcanic ash, crosslinking agent and ferric chloride to mix and stir, and configure on site. Then mix and stir 1 / 2 of the volcanic ash and expansion agent.

[0034] Standing separation of raw materials: After fully dissolving the mixed suspension, let it stand for 3 hours, and separate the solution, then add the silicon powder mixture to the concrete, and then add the expansion agent to add the waterproofing agent of the concrete to improve Sealing effect, and reduce the occurrence of expans...

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Abstract

The invention belongs to the technical field of concrete waterproof additives, and particularly relates to a concrete waterproof additive. The concrete waterproof additive is prepared from the following components in parts by mass: 100-200 parts of silica fume, 50-100 parts of sodium methylsilanolate, 20-50 parts of triethoxysilane, 20 -40 parts of organic silicon water aqua, 100-200 parts of calcium carbonate, 10-20 parts of expanding agent, 10-20 parts of cross-linking agent, 20-50 parts of volcanic ash, 50-100 parts of ferric chloride and 10-20 parts of a water reducing agent. The double-expansion-source expanding agent based on the sulfate-series expanding agent and the magnesium oxide-series expanding agent is arranged, and the cracks appearing on the outer wall of the cement caused by the fact that monosulfate is used as an additive and easily reacts with calcium hydroxide and hydrated calcium chlorate in cement to generate hydrated calcium sulphoaluminate can be reduced so the compactness of concrete is improved, and the formed liquid siliceous compacting agent can preliminarily compact concrete gaps without influencing the use of the expanding agent.

Description

technical field [0001] The invention relates to the technical field of concrete waterproof additives, in particular to a concrete waterproof additive. Background technique [0002] After the construction of concrete buildings, it is necessary to fully consider the anti-seepage effect and anti-cracking effect of the concrete wall, so the existing method of adding waterproof additives to reduce the cement-to-air ratio of concrete, and form colloidal suspended particles during the hardening process, Improve the anti-seepage effect of concrete, but the existing additives have a certain improvement in the ability to resist water seepage, but there is a reaction in the mixing of concrete, which leads to the generation of impurities, which reduces the strength and corrosion resistance, and improves the mixing performance. Requirements, to a certain extent, reduce the overall service life, and cause the concrete wall to be frequently repaired after long-term use and damage, so it ne...

Claims

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Application Information

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IPC IPC(8): C04B24/42C04B103/65
CPCC04B40/0039C04B2103/65C04B18/146C04B24/42C04B22/10C04B22/0006C04B22/12C04B2103/302C04B22/066C04B22/142C04B24/026C04B24/38C04B24/023
Inventor 于世兴
Owner 苏州万众建筑材料有限公司
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