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Concrete foaming agent and preparation method thereof

A technology of foaming agent and concrete, which is applied in the field of building materials, can solve the problems of easy deterioration during long-term storage and transportation, the deterioration of protein foaming agent can not be used, the easy softening of protein material pH value and other problems, so as to reduce the investment in fixed assets , The scope of use is not limited, the effect of improving strength and softening coefficient

Inactive Publication Date: 2012-01-25
梁材
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Protein foam concrete foaming agent is favored by many foam concrete manufacturers due to some of its own characteristics (for example, high pore closure rate), but protein foaming agent contains a large amount of amino acid substances. Under other conditions, it is easy to breed bacteria, which makes the protein foaming agent deteriorate and cannot be used or reduces the foaming effect, and it is easy to deteriorate during long-term storage and transportation
In addition, the protein foam concrete products are easy to soften when meeting water and the pH value is difficult to control (generally the pH value is greater than 7), which limits its application field.

Method used

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  • Concrete foaming agent and preparation method thereof
  • Concrete foaming agent and preparation method thereof
  • Concrete foaming agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Raw material mass ratio (Kg): rosin 10.0, sodium hydroxide 1.2, sodium dodecylbenzene sulfonate 0.5, bone glue 5.0, hydroxyethyl cellulose 1.3, tea saponin 2.0, silver nitrate 0.1, water 50.

[0019] First add bone glue to water and soak for 24 hours, add rosin and sodium hydroxide in turn under stirring, heat at 80-100°C for 3 hours, stop heating, let stand for 10 minutes, filter the hydrolyzed solution, and continue heating the filtrate to 80-100°C , while stirring continuously, add hydroxyethyl cellulose (HEC), tea saponin, and silver nitrate sequentially, and cool down after dissolution to obtain a brown liquid product with a density of 1.1-1.2Kg / L. The product and water can be mixed in any proportion, and it will not delaminate or deteriorate after being stored for half a year.

Embodiment 2

[0021] Raw material mass ratio (Kg): rosin 12.0, sodium hydroxide 1.4, sodium dodecylbenzenesulfonate 0.7, bone glue 7.0, hydroxyethyl cellulose 1.1, tea saponin 2.5, ethylparaben 0.1, water 55.0 .

[0022] First add bone glue to water and soak for 24 hours, then add rosin and sodium hydroxide in sequence under stirring, heat at 80-100°C for 5 hours, stop heating, let stand for 10 minutes, filter the hydrolyzed solution, and continue heating the filtrate to 80-100°C , and then add hydroxyethyl cellulose (HEC), tea saponin, silver nitrate or butylparaben in turn under the condition of constant stirring, after dissolving, cool down to get a brown liquid product, density: 1.2-1.3Kg / L . The product and water can be mixed in any proportion and stored for three months without stratification or deterioration.

Embodiment 3

[0024] Raw material mass ratio (Kg): rosin 15.0, sodium hydroxide 1.7, sodium dodecylbenzene sulfonate 1.0, bone glue 10.0, hydroxypropyl methylcellulose 1.0, tea saponin 3.0, propylparaben 0.3, Water 62.0.

[0025] First add bone glue to water and soak for 24 hours, add rosin and sodium hydroxide in turn under stirring, heat at 80-100°C for 4 hours, stop heating, let stand for 10 minutes, filter the hydrolyzed solution, and continue heating the filtrate to 80-100°C , while stirring continuously, add hydroxypropyl methylcellulose (HPMC), tea saponin, and propylparaben sequentially. After dissolving, cool down to obtain a brown liquid product with a density of 1.3-1.4Kg / L. The product and water can be mixed in any proportion and stored for 8 months without delamination or deterioration.

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Abstract

The invention relates to a concrete foaming agent and a preparation method thereof. The concrete foaming agent comprises raw materials in mix proportion by mass: 10.0-18.0 of colophony, 1.0-2.0 of sodium hydroxide, 0.5-1.5 of sodium dodecyl benzene sulfonate, 5.0-15.0 of bone glue, 0.5-1.5 of ethoxyl or hydroxypropyl methylcellulose, 2.0-4.0 of tea saponin, 0.1-0.5 silver nitrate or paraben and 58.0-72.0 of water. During preparation, the preparation method comprises the steps of: soaking the bone glue in water for 24-48h; adding the colophony and the sodium hydroxide while stirring; hydrolyzing for 3-5h under the temperature of 80-100 DEG C; standing for 10min; filtering, wherein the ethoxyl or hydroxypropyl methylcellulose, the tea saponin, the silver nitrate or the paraben are added in a filtrate under the temperature of 80-100 DEG C; and completing after dissolving and cooling down. The concrete foaming agent and the preparation method thereof have the advantages of simple process,low cost, good placeability with various foamed concrete-based materials, no defoaming and unlimited application range.

Description

technical field [0001] The invention belongs to the field of building materials, and relates to concrete preparation technology, in particular to concrete foaming products and technology. Background technique [0002] The application of cement foaming agent in our country has a history of more than 50 years. In the early 1950s, my country developed two foaming agents, rosin soap and rosin thermal polymer, and used them in mortar and foamed concrete. These two foaming agents have been widely used in China for decades and are familiar to the building materials and construction industry. They are the first generation of foaming agents in my country. After the 1980s, with the rise and development of my country's surfactant industry, synthetic surfactant-type foaming agents began to be used, and replaced a considerable part of rosin soap and rosin thermal polymers, becoming a major foaming agent. Variety. This is the development period of the second generation of blowing agents...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B24/38
Inventor 梁材李良
Owner 梁材
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