CN102887663A - Compound foaming agent for foam concrete and preparation method thereof - Google Patents
Compound foaming agent for foam concrete and preparation method thereof Download PDFInfo
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- CN102887663A CN102887663A CN2012103881149A CN201210388114A CN102887663A CN 102887663 A CN102887663 A CN 102887663A CN 2012103881149 A CN2012103881149 A CN 2012103881149A CN 201210388114 A CN201210388114 A CN 201210388114A CN 102887663 A CN102887663 A CN 102887663A
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Abstract
The invention belongs to the technical field of building materials, and specifically relates to a compound foaming agent for a foam concrete and the preparation method of the compound foaming agent. The compound foaming agent is composed of a surfactant, a protein foaming agent, a foam stabilizing agent, a coagulation accelerator and a water reducing agent. The compound foaming agent provided by the invention is doped with few protein foaming agent and foam stabilizing agent in a surfactant solution to remarkably improve the foaming capability and the foam stabilizing time of the surfactant solution and create favorable conditions for preparing the foam concrete at a low-density grade (not more than 500 Kg/m<3>). In addition, the coagulation accelerator is doped to accelerate the condensation of cement slurry and effectively prevent collapsing; the water reducing agent is doped to improve the working property of a freshly mixed concrete, and reduce the water dosage and improve the strength of the foam concrete at the same time. The product provided by the invention has various functions, and is not limited to only prepare the foam; at the same time, the product provided by the invention has the actions of accelerating coagulation and reducing water, and the product provided by the invention is suitable for preparing the low-density foam concrete.
Description
Technical field
The invention belongs to building material technical field, be specifically related to a kind of foamed concrete compound foaming agent and preparation method thereof.
Background technology
China is since beginning to carry out the building thermal-insulation energy-saving engineering in 2005, and heat preserving and insulating material is developed rapidly.At present, common lagging material mainly is divided into organic insulation material, inorganic heat insulation material and compound insulating material.Wherein, organic insulation material comprises expanded polystyrene, extruded polystyrene, polyurathamc and expansion polyphenyl particle etc.; inorganic heat insulation material comprises pearlstone, closed perlite, expanded vermiculite, hollow glass bead and rock wool (asbestos) etc.; and compound insulating material is that the hollow material produced take lagging material, agricultural crop straw and by the foaming mode etc. is as starting material; with the compound and class material of processing of silicate cementing material or gypsum, such as the expansion polyphenyl granule heat-insulating mortar.These a few class lagging materials all have its relative merits separately: 1) organic insulation material has that thermal and insulating performance is good, workability is strong and the advantage such as compactness is good, but exist the shortcomings such as deformation, poor durability and easy firing occurs easily; 2) inorganic heat insulation material have that fire line is good, the advantage such as stable performance and good endurance, but have the shortcomings such as the slightly high and heat insulating effect of unit weight is slightly poor; 3) compound insulating material have that thermal and insulating performance is good, deformation coefficient is little, the series of advantages such as starting material wide material sources and the waste of dissolving, be a kind of comparatively ideal lagging material.Foamed concrete is the foam that foaming agent solution is made by mechanical means, join in the finish mix such as material (cement, flyash, slag powders, lime and quartz sand etc.), admixture, fiber and the water slurry of siliceous and calcium a kind of light porous material of construction that forms through mix and blend, casting and maintenance.It is as a kind of compound insulating material, the remarkable advantage such as have light weight, heat insulating, sound-proof sound-absorbing and do not fire, and can also utilize in a large number the trade wastes such as flyash and slag in process of production.Current, foamed concrete just is being extensively studied and production application.
Whipping agent is as one of gordian technique for preparing foamed concrete, and the quality of its quality directly affects the performance of foamed concrete.At present, the kind of whipping agent is a lot of on the market, but quality is uneven, mainly comprises rosin based, synthetic class tensio-active agent, protein and compound.The rosin based whipping agent is first-generation whipping agent, and it mainly contains rosined soap and colophonium pyrolytic polymer etc.Synthetic class surfactant foaming agent is s-generation whipping agent, and this class whipping agent is easy to foaming, and foam expansion is high, but has that the bubble wall is thin, a poor stability and on shortcomings such as the concrete strength impact are large.The protein whipping agent is third generation blowing agents, and it mainly is divided into vegetable-protein and animal proteinum two classes, this class foaming agent foam good stability, but the synthetic class tensio-active agent of foam expansion is slightly poor.Compound foaming agent be the 4th generation whipping agent, this class whipping agent no longer is single component, but is composited by the several functions component.Present domestic whipping agent is the on the low side and poor stability of function generally, so that prepared cellular concrete product intensity difference, and therefore, the research of compound foaming agent is the key of the foamed concrete of preparation excellent properties.
The foamed concrete of the present invention's preparation is combined by tensio-active agent, protein whipping agent, suds-stabilizing agent, setting accelerator and water reducer with compound foaming agent, not only foam expansion is high for it, froth stability is good, and can significantly improve the intensity of foamed concrete, be a kind of whipping agent of excellent performance.
Summary of the invention
The object of the present invention is to provide a kind of foam expansion height, foam stabilization time length and improve compound foaming agent of foamed concrete intensity and preparation method thereof.
The present invention proposes a kind of foamed concrete compound foaming agent and preparation method thereof, this whipping agent is as frothing solution with tensio-active agent and protein whipping agent, utilize suds-stabilizing agent to improve the foam stabilization time, and improve the performance of foamed concrete slurry and maturing by adding setting accelerator and water reducer.
The foamed concrete compound foaming agent that the present invention proposes is comprised of tensio-active agent, protein whipping agent, suds-stabilizing agent, setting accelerator and water reducer, and the weight ratio of each component is:
Tensio-active agent 100
Protein whipping agent 0.1-10
Suds-stabilizing agent 0.1-5
Setting accelerator 10-60
Water reducer 10-90.
The better weight ratio of each component is:
Tensio-active agent 100
Protein whipping agent 1-5
Suds-stabilizing agent 0.5-3
Setting accelerator 20-50
Water reducer 50-80.
Among the present invention, described tensio-active agent is a kind of in sodium lauryl sulphate or the Sodium dodecylbenzene sulfonate solution, and the mass concentration of solution is 0.6%.
Among the present invention, described protein whipping agent is animal protein foaming agent solution, and its mass concentration is 30%.
Among the present invention, described suds-stabilizing agent is lauroyl diethanolamine solution, and this solution is that lauroyl diethanolamine is dissolved in 50 ℃-60 ℃ the water and forms, and mass concentration is 10%.
Among the present invention, described setting accelerator is CaCl
2Or Fe (NO
3)
3.9H
2A kind of among the O.
Among the present invention, described water reducer is a kind of in naphthalenesulfonate system or the polycarboxylic acid series high efficiency water reducing agent.
The foamed concrete that the present invention the proposes preparation method of compound foaming agent, concrete steps are as follows:
(1) the accurate weighing tensio-active agent of difference and water, preparation mass concentration are 0.6% surfactant soln;
(2) accurate weighing protein whipping agent adds it in surfactant soln of step (1) gained, slowly stirs;
(3) lauroyl diethanolamine is dissolved in 50 ℃-60 ℃ the water, is mixed with mass concentration and is 10% solution, a certain amount of lauroyl diethanolamine solution is mixed in the solution of step (2) gained, slowly stir;
(4) accurate weighing setting accelerator and water reducer add it respectively in the solution of step (3) gained, and slowly stirring gets final product.
Not only foam performance is excellent with compound foaming agent for the foamed concrete that the present invention proposes, and has the effect of urging solidifying and diminishing concurrently.
Among the present invention, surfactant soln and a small amount of protein whipping agent are as main frothing solution.The size of surface tension of liquid directly affects the formation of bubble, and surface tension is lower, the just easier formation of its bubble.The present invention adopts the highly active tensio-active agents such as sodium lauryl sulphate or Witco 1298 Soft Acid, the latherability of its solution is strong, foam expansion is large, but the steady time of the foam that surfactant soln is prepared is short, foam can break before the gelling system setting and harden like this, causes the foamed concrete mould that collapses.And the remarkable advantage of protein whipping agent is that steady time of foam is long, therefore, by mix again a small amount of protein whipping agent in surfactant soln, can obviously improve its froth stability, and foam expansion is not affected substantially yet simultaneously.
Two the most basic large character of whipping agent are latherability and froth stability.Foam is the coarse dispersion system of gas dispersion in liquid, because there is a large amount of liquid-vapo(u)r interfaces in system, belong to thermodynamic unstable system, so foam finally still is tending towards destroying.The major cause that causes foam to destroy has the diffusion of gas in gravity discharge opeing, surface tension discharge opeing and the bubble.Froth stability depends primarily on speed that liquid separates out and the intensity of liquid film, increases the viscosity of solution and the visco-elasticity of liquid film, can solve self splintering problem that foam causes because of above-mentioned reason.Adopt lauroyl diethanolamine among the present invention, improve the visco-elasticity of liquid film, thus the steady time of improving foam.
The kind of whipping agent is a lot of at present, but function is all very single basically, only for the preparation of foam, and gelling system is not produced other effects, and the present invention can shorten the time of coagulation of cement slurry by mixing again setting accelerator, improve early strength, the generation of the mould phenomenon that can better prevent from collapsing.By compound water reducing admixture, can improve the workability of newly mixing foamed concrete, and by reducing water consumption, improve the concrete intensity of hardened foam.
The present invention is the foamed concrete compound foaming agent, and the foam expansion of this whipping agent is high, and the foam stabilization time of preparation is long, and can improve the performance of foamed concrete, is suitable for preparing the low density foam concrete.
Embodiment
Further specify the present invention below by embodiment.
Embodiment 1, a kind of foamed concrete compound foaming agent and preparation method thereof, and this whipping agent is pressed tensio-active agent 100, protein whipping agent 0.1, suds-stabilizing agent 0.1, setting accelerator 10, the weight ratio of water reducer 10 is formulated.The preparation method is 0.6% surfactant soln for preparing first mass concentration, and lauroyl diethanolamine is dissolved in 50 ℃-60 ℃ the water, be mixed with quality solubility and be 10% solution, then by above-mentioned weight ratio protein whipping agent, lauroyl diethanolamine solution, setting accelerator and water reducer are mixed in the surfactant soln successively, stir at last.The foam expansion of this whipping agent is that 35,1h depression distance is 12mm, 1h bleeding quantity 70ml.
Embodiment 2, a kind of foamed concrete compound foaming agent and preparation method thereof, and this whipping agent is pressed tensio-active agent 100, protein whipping agent 1, suds-stabilizing agent 0.5, setting accelerator 20, the weight ratio of water reducer 30 is formulated.The preparation method is 0.6% surfactant soln for preparing first mass concentration, and lauroyl diethanolamine is dissolved in 50 ℃-60 ℃ the water, be mixed with quality solubility and be 10% solution, then by above-mentioned weight ratio protein whipping agent, lauroyl diethanolamine solution, setting accelerator and water reducer are mixed in the surfactant soln successively, stir at last.The foam expansion of this whipping agent is that 46,1h depression distance is 8mm, 1h bleeding quantity 60ml.
Embodiment 3, a kind of foamed concrete compound foaming agent and preparation method thereof, and this whipping agent is pressed tensio-active agent 100, protein whipping agent 5, suds-stabilizing agent 3, setting accelerator 50, the weight ratio of water reducer 70 is formulated.The preparation method is 0.6% surfactant soln for preparing first mass concentration, and lauroyl diethanolamine is dissolved in 50 ℃-60 ℃ the water, be mixed with quality solubility and be 10% solution, then by above-mentioned weight ratio protein whipping agent, lauroyl diethanolamine solution, setting accelerator and water reducer are mixed in the surfactant soln successively, then stir.The foam expansion of this whipping agent is that 50,1h depression distance is 7mm, 1h bleeding quantity 40ml.
Embodiment 4, a kind of foamed concrete compound foaming agent and preparation method thereof, and this whipping agent is pressed tensio-active agent 100, protein whipping agent 10, suds-stabilizing agent 5, setting accelerator 60, the weight ratio of water reducer 90 is formulated.The preparation method is 0.6% surfactant soln for preparing first mass concentration, and lauroyl diethanolamine is dissolved in 50 ℃-60 ℃ the water, be mixed with quality solubility and be 10% solution, then by above-mentioned weight ratio protein whipping agent, lauroyl diethanolamine solution, setting accelerator and water reducer are mixed in the surfactant soln successively, stir at last.The foam expansion of this whipping agent is that 40,1h depression distance is 10mm, 1h bleeding quantity 80ml.
Claims (8)
1. a foamed concrete compound foaming agent is characterized in that this whipping agent is comprised of tensio-active agent, protein whipping agent, suds-stabilizing agent, setting accelerator and water reducer, and the weight ratio of each component is:
Tensio-active agent 100
Protein whipping agent 0.1-10
Suds-stabilizing agent 0.1-5
Setting accelerator 10-60
Water reducer 10-90.
2. foamed concrete compound foaming agent according to claim 1 is characterized in that the weight ratio of each component is:
Tensio-active agent 100
Protein whipping agent 1-5
Suds-stabilizing agent 0.5-3
Setting accelerator 20-50
Water reducer 50-80.
3. foamed concrete compound foaming agent according to claim 1 is characterized in that described tensio-active agent is a kind of in sodium lauryl sulphate or the Sodium dodecylbenzene sulfonate solution, and the mass concentration of solution is 0.6%.
4. foamed concrete compound foaming agent according to claim 1 is characterized in that described protein whipping agent is animal protein foaming agent solution, and its mass concentration is 30%.
5. foamed concrete compound foaming agent according to claim 1 is characterized in that described suds-stabilizing agent is lauroyl diethanolamine solution, and this solution is that lauroyl diethanolamine is dissolved in 50 ℃-60 ℃ the water and forms, and mass concentration is 10%.
6. foamed concrete compound foaming agent according to claim 1 is characterized in that described setting accelerator is CaCl
2Or Fe (NO
3)
3.9H
2A kind of among the O.
7. foamed concrete compound foaming agent according to claim 1 is characterized in that described water reducer is a kind of in naphthene sulfonic acid system or the polycarboxylic acid series high efficiency water reducing agent.
8. a foamed concrete claimed in claim 1 is with the preparation method of compound foaming agent, and concrete steps are as follows:
(1) the accurate weighing tensio-active agent of difference and water, preparation mass concentration are 0.6% surfactant soln;
(2) accurate weighing protein whipping agent joins it in surfactant soln of step (1) gained, slowly stirs;
(3) lauroyl diethanolamine is dissolved in 50 ℃-60 ℃ the water, is mixed with mass concentration and is 10% solution, a certain amount of lauroyl diethanolamine solution is mixed in the solution of step (2) gained, slowly stir;
(4) accurate weighing setting accelerator and water reducer add it respectively in the solution of step (3) gained, and slowly stirring gets final product.
Priority Applications (1)
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|---|---|---|---|
| CN201210388114.9A CN102887663B (en) | 2012-10-15 | 2012-10-15 | Compound foaming agent for foam concrete and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210388114.9A CN102887663B (en) | 2012-10-15 | 2012-10-15 | Compound foaming agent for foam concrete and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102887663A true CN102887663A (en) | 2013-01-23 |
| CN102887663B CN102887663B (en) | 2014-04-16 |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103351109A (en) * | 2013-07-12 | 2013-10-16 | 中建商品混凝土成都有限公司 | Compound cement foaming agent and preparation method thereof |
| CN104098343A (en) * | 2013-04-15 | 2014-10-15 | 北京华德创业环保设备有限公司 | Foaming agent for filling materials |
| CN105481283A (en) * | 2014-10-11 | 2016-04-13 | 王路明 | Composite protein foaming agent for foamed concrete, preparation method for composite protein foaming agent and use of composite protein foaming agent |
| CN105819726A (en) * | 2016-03-29 | 2016-08-03 | 陕西师范大学 | Composite protein surfactant foaming agent |
| CN105859180A (en) * | 2016-03-25 | 2016-08-17 | 湖北大学 | Foaming agent for foamed light concrete and preparation method for foaming agent |
| CN106630742A (en) * | 2016-12-21 | 2017-05-10 | 柳州市昌泉贸易有限公司 | Foaming agent for mining filling and preparation method of foaming agent |
| CN106747639A (en) * | 2016-12-23 | 2017-05-31 | 安庆市大成防腐保温材料有限责任公司 | A kind of foamed concrete thermal-insulating material |
| CN107134320A (en) * | 2017-04-26 | 2017-09-05 | 晶锋集团（天长）高分子材料有限公司 | A kind of processing method of direct current cables |
| CN107902942A (en) * | 2017-10-13 | 2018-04-13 | 广东盛瑞科技股份有限公司 | A kind of animal protein foaming agent of high-foaming multiple and preparation method thereof |
| CN107986817A (en) * | 2017-11-27 | 2018-05-04 | 固岩科技发展有限公司 | A kind of air parcel elastomeric material foaming agent and its methods for making and using same |
| CN108840716A (en) * | 2018-07-25 | 2018-11-20 | 南京航空航天大学 | Big fluidised form light foam composite soil |
| CN109534746A (en) * | 2018-12-11 | 2019-03-29 | 重庆老顽固实业有限公司 | Toilet liquid foam backfilling material and preparation method thereof |
| CN110015906A (en) * | 2018-01-08 | 2019-07-16 | 北新集团建材股份有限公司 | A kind of low density paper surface gypsum board and its preparation process |
| CN111138111A (en) * | 2020-01-13 | 2020-05-12 | 福建建工建材科技开发有限公司 | Early-strength waterproof foam concrete foaming agent |
| CN112551929A (en) * | 2020-12-29 | 2021-03-26 | 广东盛瑞科技股份有限公司 | High-performance foam light soil foaming agent |
| CN114470603A (en) * | 2022-02-17 | 2022-05-13 | 煤炭科学技术研究院有限公司 | Inorganic foam fire prevention and extinguishing material and preparation method and application thereof |
| CN115838263A (en) * | 2022-11-11 | 2023-03-24 | 安徽省公路桥梁工程有限公司 | High-strength light foam soil and preparation method thereof |
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| CN104098343A (en) * | 2013-04-15 | 2014-10-15 | 北京华德创业环保设备有限公司 | Foaming agent for filling materials |
| CN103351109B (en) * | 2013-07-12 | 2015-10-14 | 中建商品混凝土成都有限公司 | A kind of composite water cement foaming agent and preparation method thereof |
| CN103351109A (en) * | 2013-07-12 | 2013-10-16 | 中建商品混凝土成都有限公司 | Compound cement foaming agent and preparation method thereof |
| CN105481283A (en) * | 2014-10-11 | 2016-04-13 | 王路明 | Composite protein foaming agent for foamed concrete, preparation method for composite protein foaming agent and use of composite protein foaming agent |
| CN105859180A (en) * | 2016-03-25 | 2016-08-17 | 湖北大学 | Foaming agent for foamed light concrete and preparation method for foaming agent |
| CN105859180B (en) * | 2016-03-25 | 2018-05-22 | 湖北大学 | A kind of Foam lightweight soil foaming agent and preparation method thereof |
| CN105819726B (en) * | 2016-03-29 | 2018-01-12 | 陕西师范大学 | A kind of protein surface activating agent compound foaming agent |
| CN105819726A (en) * | 2016-03-29 | 2016-08-03 | 陕西师范大学 | Composite protein surfactant foaming agent |
| CN106630742A (en) * | 2016-12-21 | 2017-05-10 | 柳州市昌泉贸易有限公司 | Foaming agent for mining filling and preparation method of foaming agent |
| CN106630742B (en) * | 2016-12-21 | 2019-05-03 | 柳州市昌泉贸易有限公司 | A kind of mining filling foaming agent and preparation method thereof |
| CN106747639A (en) * | 2016-12-23 | 2017-05-31 | 安庆市大成防腐保温材料有限责任公司 | A kind of foamed concrete thermal-insulating material |
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| CN107902942A (en) * | 2017-10-13 | 2018-04-13 | 广东盛瑞科技股份有限公司 | A kind of animal protein foaming agent of high-foaming multiple and preparation method thereof |
| CN107986817A (en) * | 2017-11-27 | 2018-05-04 | 固岩科技发展有限公司 | A kind of air parcel elastomeric material foaming agent and its methods for making and using same |
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| CN110015906B (en) * | 2018-01-08 | 2021-03-23 | 北新集团建材股份有限公司 | Low-density paper-surface gypsum board and preparation process thereof |
| CN110015906A (en) * | 2018-01-08 | 2019-07-16 | 北新集团建材股份有限公司 | A kind of low density paper surface gypsum board and its preparation process |
| CN108840716B (en) * | 2018-07-25 | 2021-09-17 | 南京航空航天大学 | Large flow state light foam mixed soil |
| CN108840716A (en) * | 2018-07-25 | 2018-11-20 | 南京航空航天大学 | Big fluidised form light foam composite soil |
| CN109534746A (en) * | 2018-12-11 | 2019-03-29 | 重庆老顽固实业有限公司 | Toilet liquid foam backfilling material and preparation method thereof |
| CN111138111A (en) * | 2020-01-13 | 2020-05-12 | 福建建工建材科技开发有限公司 | Early-strength waterproof foam concrete foaming agent |
| CN111138111B (en) * | 2020-01-13 | 2022-01-28 | 福建建工建材科技开发有限公司 | Early-strength waterproof foam concrete foaming agent |
| CN112551929A (en) * | 2020-12-29 | 2021-03-26 | 广东盛瑞科技股份有限公司 | High-performance foam light soil foaming agent |
| CN114470603A (en) * | 2022-02-17 | 2022-05-13 | 煤炭科学技术研究院有限公司 | Inorganic foam fire prevention and extinguishing material and preparation method and application thereof |
| CN115838263A (en) * | 2022-11-11 | 2023-03-24 | 安徽省公路桥梁工程有限公司 | High-strength light foam soil and preparation method thereof |
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