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Foaming agent for civil construction as well as preparation method and use thereof

A foaming agent and civil engineering technology, applied in the field of foaming agents for civil engineering, can solve the problems of thin foam wall, large foam diameter, poor foam stability, etc. metamorphic effect

Inactive Publication Date: 2008-07-23
CHINA RES INST OF DAILY CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high-efficiency foaming agent has the characteristics of good water solubility, small average pore size of the introduced bubbles, high bubble stability, small reduction in concrete strength, simple proportioning, and convenient use, which can overcome the existing surfactant foaming agent. The foam bubble diameter is large, the bubble wall is thin, and the foam stability is not good, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Compounding sodium α-alkenyl sulfonate, sodium fatty acid methyl ester sulfonate, cetyltrimethylammonium bromide, octadecyldimethylamine oxide, triethanolamine, gum arabic, and sodium sulfate can Obtain good blowing agent of foam performance, its weight percent:

[0026] Sodium alpha-olefin sulfonate 60%

[0027] Sodium fatty acid methyl ester sulfonate 10%

[0028] Cetyltrimethylammonium Bromide 14%

[0029] Octadecyl Dimethyl Amine Oxide 5%

[0030] Triethanolamine 4%

[0031] Gum Arabic 2%

[0032] Sodium Sulfate 5%

[0033] Sieve through a 100-mesh sieve to remove lumps and coarse particles in the solid raw material, mix and stir evenly, then spray and agglomerate the liquid raw material on the evenly mixed solid raw material, mix and stir evenly, and dry to form a uniform powder.

[0034] The mixing amount of the prepared foaming agent is 0.05% of the total weight of the cement, and it is used after stirring and mixing evenly.

Embodiment 2

[0036] Sodium α-alkenyl sulfonate, soap, sodium lauryl sulfonate, dodecyl dimethyl benzyl ammonium bromide, cetyl trimethyl ammonium bromide, triethanolamine, carboxymethyl cellulose Sodium plain and sodium silicate can be compounded to obtain a foaming agent with good foam performance, and its weight percentage is:

[0037] Sodium alpha-olefin sulfonate 45%

[0038] Soap 10%

[0039] Sodium Lauryl Sulfate 10%

[0040] Lauryl Dimethyl Benzyl Ammonium Bromide 10%

[0041] Cetyltrimethylammonium Bromide 5%

[0042] Triethanolamine 5%

[0043] Sodium Carboxymethyl Cellulose 5%

[0044] Sodium silicate 10%

[0045] Sieve through a 100-mesh sieve to remove lumps and coarse particles in the solid raw material, mix and stir evenly, then spray and agglomerate the liquid raw material on the evenly mixed solid raw material, mix and stir evenly, and dry to form a uniform powder.

[0046] The mixing amount of the prepared foaming agent is 0.1% of the total weight of the cement, whi...

Embodiment 3

[0048] Sodium dodecyl sulfonate, sodium lauryl sulfate, sodium salt of fatty acid methyl ester sulfonate, octadecyl trimethyl ammonium chloride, hexadecyl trimethyl ammonium chloride, polyacrylamide, Gum Arabic and sodium sulfate are compounded to obtain a foaming agent with good foam performance, and its weight percentage is:

[0049] Sodium Lauryl Sulfate 60%

[0050] Sodium Lauryl Sulfate 5%

[0051] Sodium fatty acid methyl ester sulfonate 5%

[0052] Octadecyltrimethylammonium Chloride 3%

[0053] Cetyltrimethylammonium Chloride 5%

[0054] Polyacrylamide 4%

[0055] Gum Arabic 3%

[0056] Sodium Sulfate 15%

[0057]Sieve through a 100-mesh sieve to remove lumps and coarse particles in the solid raw material, mix and stir evenly, then spray and agglomerate the liquid raw material on the evenly mixed solid raw material, mix and stir evenly, and dry to form a uniform powder.

[0058] The mixing amount of the prepared foaming agent is 0.5% of the total weight of the c...

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PUM

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Abstract

The weight percentage of a constructional foaming agent is that the anion surface active agent is 40-70%, the cationic surface active agent is 5-30%, the foam stabilizing agent by 5-15%, and the filling agent by 5-15%. The solid raw material is cracked into particle with the diameter smaller than 100 meshes, and mixed evenly, then liquid raw material spray is agglomerated on the solid raw material which is mixed evenly, stirred evenly and dried, even powder is conformed. The invention has advantages of simple process, and being easy to be shaped, hard to be degenerated and convenient for transportation, which has good water solubility and high stability, with less reduction of concrete strength, low cost etc.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a foaming agent for civil engineering. Background technique [0002] In recent years, porous lightweight materials have been widely used in civil engineering. Foamed concrete is a kind of porous lightweight materials. It introduces an appropriate amount of uniform and stable micro-bubbles into cement slurry or cement mortar, and pours them after mixing them evenly. A hardened porous concrete with a large number of closed pores inside. This concrete has a series of special features that ordinary concrete does not have, such as light weight, heat preservation, heat insulation, sound insulation, resistance to salt and frost erosion, and good fire resistance. It has become a striking new building material and has been widely used. [0003] There are many substances that can produce foam, and not all substances that can produce foam can be used in the production of foam concrete. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/00C04B24/16C04B38/02
Inventor 杜志平薛铁中刘晓英王万绪李国晋
Owner CHINA RES INST OF DAILY CHEM IND
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