CN106927781A - One kind is with CO2Phosphate cement foam concrete for foamed gas and preparation method thereof - Google Patents
One kind is with CO2Phosphate cement foam concrete for foamed gas and preparation method thereof Download PDFInfo
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- CN106927781A CN106927781A CN201710291622.8A CN201710291622A CN106927781A CN 106927781 A CN106927781 A CN 106927781A CN 201710291622 A CN201710291622 A CN 201710291622A CN 106927781 A CN106927781 A CN 106927781A
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- foam concrete
- phosphate cement
- foamed gas
- thickener
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/34—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
- C04B38/103—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam the foaming being obtained by the introduction of a gas other than untreated air, e.g. nitrogen
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
One kind is with CO2It is the phosphate cement foam concrete of foamed gas, is made up of the composition of following mass fraction：200~450 parts of phosphate cement, 115~180 parts of mineral admixture, 10~40 parts of thickener, 10~30 parts of foaming agent, 1~4 part of foam stabilizer, 60~130 parts of water.Foam concrete light weight disclosed by the invention, intensity are high, thermal conductivity factor is small, combustibility is A grades, with short production cycle.
Description
Technical field
The invention belongs to energy-saving building materialses field, specifically, it is related to one kind with CO2It is the phosphoric acid salt solution of foamed gas
Mud foam concrete.
Background technology
Foam concrete is by one by Binder Materials, appropriate mineral admixture, suitable additive, foaming agent and foam stabilizer
A kind of lightweight, high-strength, insulation concrete that fixed ratio is made through certain preparation technology.Foam concrete is a kind of new
Energy saving and environment friendly construction material, the fire resistance rating with good insulation, heat-proof quality, and foam concrete be A grades, energy
The influence for avoiding fire to bring well.When preparing foam concrete, flyash and slag is added to belong to industrial residue, this is again very
The good process problem for solving industrial residue.
Existing foam concrete generally existing three below problem：(1) gas for being introduced when foam concrete is prepared
Typically oxygen, air and hydrogen.At 0 DEG C, the thermal conductivity factor of hydrogen is 0.176W/ (mk), and the thermal conductivity factor of air is
0.0242W/ (mk), the thermal conductivity factor of oxygen is 0.0248W/ (mk).The thermal conductivity factor of these gases is inherently relatively
Height, the thermal conductivity factor that this allows for the foam concrete for preparing is higher.These gases introduce mode be usually chemical reaction and
Add surfactant.Chinese invention patent application 201110389083.4 is exactly the oxygen introduced by way of chemical reaction
Gas.Chinese invention patent application 201180009449.9, Chinese invention patent application 201210561385.X, Chinese invention patent
Application 201310671052.7, Chinese invention patent application 201410274787.0 and Chinese invention patent application
200910078347.7 is all the air introduced by way of adding surfactant.(2) complex process that gas is introduced.In
State's application for a patent for invention 201110389083.4 discloses a kind of super-light foam cement concrete and preparation method thereof, and gas is introduced
Mode is that foaming agent is carried out into mechanical agitation with the slurry for stirring.Chinese invention patent application 201180009449.9, in
State's patent of invention Shen 201410274787.0, Chinese invention patent application 201410568426.7, Chinese invention patent application
The bleed such as 201310671052.7 and Chinese invention patent application 201210561385.X method be will prepare good foam with
Cement slurry carries out mechanical agitation；(3) the foam concrete early strength for preparing is relatively low, and the production cycle is long, and later strength is not yet
It is high.Existing patent and the cement for preparing foam concrete of document introduction substantially Portland cement and sulphur aluminium
This kind of special cement of hydrochlorate.Prepared foam concrete and needed to add with Portland cement and promote solidifying component or accelerating component,
Even so the foam mixed mud being molded be also required to 24 hours after could form removal, this just extends the production cycle.Use aluminium sulfate
Although foam concrete early strength prepared by the special cements such as cement is higher, the production cycle is shortened, after this kind of cement
Phase intensity is it is possible that powder phenomenon has occurred in retraction.
Phosphate cement is to be raw material, after chemical reaction and shape to cross burned magnesium oxide, dihydric phosphate and retarder
Into a kind of novel gelled material, have the advantages that setting time is short, early strength is high, present prior art personnel begin one's study
Foam concrete is prepared with Thiophosphate cement.Chinese invention patent 201410771626.2 discloses a kind of foaming magnesium phosphate water
Mud expanded material, its component is magnesite clinker, potassium dihydrogen phosphate, flyash, retarder and foaming agent, and wherein retarder is boron
Sand, foaming agent is carbonate or bicarbonate, and its preparation method is by magnesite clinker, borax, flyash, carbonate or bicarbonate
Salt first mixes 60s, is subsequently poured into potassium dihydrogen phosphate, stirs 30s, in then adding water to well mixed material, afterwards
Stirring 60s, obtains the magnesium phosphate cement slurry that foams, and pours into mould foamed afterwards.The patent also has following aspect worth
Improve：(1) there is no thickener component in component, it is difficult to ensure the stability of foaming system.Magnesium phosphate cement particle is compared to silicic acid
Salt cement, sulphate aluminium cement particle are thicker, and it is dissolved in water and needs the regular hour, therefore slurry viscosity is relative to silicic acid
Salt cement and sulphate aluminium cement slurry are relatively low, it is impossible to ensure that preparing foaming magnesium phosphate cement slurry has enough denseness, makes
The bubble of generation is difficult to stable existence, or the bubble diameter for existing is larger；(2) there is no foam stabilizer in component.Foam stabilizer is to bubble
The stability, uniformity of bubble, size have a great impact in foam concrete；(3) preparation technology is complicated.
Patent of the present invention adds thickener component and foam stabilizing group on the basis of Chinese invention patent 201410771626.2
Point, and its preparation technology is improved.
The content of the invention
The technical problem to be solved in the present invention is to provide one kind with CO2It is foamed gas, gas introduces simple, the bubble of shaping
Foam concrete intensity phosphate cement foam concrete very high.
What the object of the invention was realized in：
One kind is with CO2It is the phosphate cement foam concrete of foamed gas, is made up of the composition of following mass fraction：Phosphorus
200~450 parts of acid salt cement, 115~180 parts of mineral admixture, 10~40 parts of thickener, carbonate or bicarbonate 10~30
Part, 1~4 part of foam stabilizer, 60~130 parts of water.
Above-mentioned thickener is inorganic thickening agent or organic thickening agent.Above-mentioned inorganic thickening agent be refer to increase slurry it is thick
The inorganic mineral of degree, be diatomite, bentonite one or two.Above-mentioned organic thickening agent be polyacrylamide, polyacrylic acid and
One or more in soluble starch.
Above-mentioned foam stabilizer be calcium stearate, magnesium stearate and lauryl alcohol in one or more.One kind is with CO2For
The preparation method of the phosphate cement foam concrete of foamed gas：By mass fraction by phosphate cement, mineral admixture, increasing
Thick dose, carbonate or bicarbonate, foam stabilizer and water are got ready, then by phosphate cement, mineral admixture, thickener, carbonic acid
Salt or bicarbonate and foam stabilizer are well mixed, and add water and stir together, pour, be molded and conserving and be obtained.
The invention has the advantage that：(1) be not in collapse mould and shrinkage phenomenon during preparing foam concrete, be made
Foam concrete inside bubble it is more uniform, size is more tiny.The addition of thickener can be such that cement slurry preferably wraps
Bubble, fixed bubble are wrapped up in, making the foam concrete of preparation has more preferable volume stability, be not in collapse mould with contraction now
As；On the one hand the intensity that the addition of foam stabilizer increased walls make that bubble is more stable to be present in cement slurry, improves bubble
The volume stability of foam concrete, the bubble inside foam concrete being on the other hand made is more uniform, and aperture is more tiny.
(2) preparation process is simple.Patent of the present invention adds water by stirring after only each component of the foam concrete need to be well mixed and makes
Into foam concrete slurry, then foam concrete slurry poured, is molded, conserved and can be made into foam concrete finished product.(3)
The thermal property of foam concrete is improved.On the one hand the gas that the foam concrete is introduced is carbon dioxide, at 0 DEG C
When, CO2Thermal conductivity factor be 0.0143W/ (mk), the relative air introduced with existing foaming system, oxygen and hydrogen are led
Hot coefficient is low so that the thermal property of prepared foam concrete is improved；Another aspect phosphate cement aquation can be produced
Magnesium hydroxide, magnesium hydroxide can react generation magnesium carbonate with the carbon dioxide in bubble, so both can be because of generation carbonic acid
Magnesium improves the intensity of foam concrete, again can be because the partial CO 2 for consuming in bubble forms certain true in bubble
Reciprocal of duty cycle, improves the thermal property of foam concrete.
Beneficial effect：Foam concrete light weight disclosed by the invention, intensity are high, thermal conductivity factor is small, combustibility is A
Level, it is with short production cycle.
Specific embodiment
Embodiment 1
One kind described by the present embodiment 1 is with CO2It is the phosphate cement foam concrete of foamed gas, by following quality
The composition composition of number：200 parts of phosphate cement, 105 parts of flyash, 15 parts of silicon ash, 7 parts of sodium carbonate, 3 parts of sodium acid carbonate is swollen
9 parts of profit soil, 4 parts of diatomite, 1 part of polyacrylamide, 1 part of polyacrylic acid, 0.5 part of calcium stearate, 0.5 part of lauryl alcohol, 60 parts of water.
Embodiment 2
One kind described by the present embodiment 2 is with CO2It is the phosphate foam concrete of foamed gas, by following mass fraction
Composition composition：300 parts of phosphate cement, 110 parts of flyash, 20 parts of silicon ash, 10 parts of sodium carbonate, 5 parts of sodium acid carbonate, bentonite
11 parts, 6 parts of diatomite, 2 parts of polyacrylamide, 1 part of polyacrylic acid, 1 part of magnesium stearate, 1 part of lauryl alcohol, 84 parts of water.
Embodiment 3
One kind described by the present embodiment 3 is with CO2It is the phosphate cement foam concrete of foamed gas, by following quality
The composition composition of number：370 parts of phosphate cement, 100 parts of flyash, 15 parts of silicon ash, 15 parts of sodium carbonate, 10 parts of sodium acid carbonate,
22 parts of bentonite, 13 parts of diatomite, 3 parts of polyacrylamide, 2 parts of soluble starch, 2 parts of calcium stearate, 1 part of lauryl alcohol, water 100
Part.
Embodiment 4
One kind described by the present embodiment 4 is with CO2It is the phosphate cement foam concrete of foamed gas, by following quality
The composition composition of number：420 parts of phosphate cement, 150 parts of flyash, 30 parts of silicon ash, 15 parts of sodium carbonate, 12 parts of sodium acid carbonate,
17 parts of bentonite, 7 parts of diatomite, 2 parts of polyacrylamide, 2 parts of polyacrylic acid, 2 parts of soluble starch, 3 parts of magnesium stearate, 12
1 part of alcohol, 130 parts of water.
Embodiment 5
One kind described by the present embodiment 5 is with CO2It is the phosphate cement foam concrete of foamed gas, by following quality
The composition composition of number：450 parts of phosphate cement, 105 parts of flyash, 15 parts of silicon ash, 20 parts of sodium carbonate, 10 parts of sodium acid carbonate,
6 parts of bentonite, 2 parts of diatomite, 1 part of polyacrylic acid, 1 part of soluble starch, 2 parts of calcium stearate, 1 part of lauryl alcohol, 120 parts of water.
Table 1
The above, is only several embodiments of the present invention, not makees any shape to principle of the invention and framework
Limitation in formula.Every any simple modification made to above example according to technical spirit of the invention, equivalent variations with
Modification, still falls within the range of technical scheme.
Claims (7)
1. one kind is with CO2It is the phosphate cement foam concrete of foamed gas, is made up of the composition of following mass fraction：Phosphoric acid
200~450 parts of salt cement, 115~180 parts of mineral admixture, 10~40 parts of thickener, carbonate or bicarbonate 10~30
Part, 1~4 part of foam stabilizer, 60~130 parts of water.
2. according to one kind described in claim 1 with CO2It is the phosphate cement foam concrete of foamed gas, it is characterised in that：It is described
Thickener be inorganic thickening agent or organic thickening agent.
3. according to one kind described in claim 3 with CO2It is the phosphate cement foam concrete of foamed gas, it is characterised in that：It is described
Inorganic thickening agent be refer to increase slurry denseness inorganic mineral, be diatomite, bentonite one or more.
4. according to one kind described in claim 3 with CO2It is the phosphate cement foam concrete of foamed gas, it is characterised in that：It is described
Organic thickening agent be polyacrylamide, polyacrylic acid and soluble starch in one or more.
5. according to one kind described in claim 1 with CO2It is the phosphate cement foam concrete of foamed gas, it is characterised in that：It is described
Foam stabilizer be one or more in calcium stearate, magnesium stearate and lauryl alcohol.
6. according to one kind described in claim 1 with CO2It is the phosphate cement foam concrete of foamed gas, it is characterised in that：It is described
Carbonate or bicarbonate foaming agent will thickener, the collective effect of foam stabilizer under, produce CO2As introducing phosphoric acid salt solution
The predominant gas of mud foam concrete.
7. one kind as described in claim 1-6 with CO2It is the preparation method of the phosphate cement foam concrete of foamed gas：Press
Mass fraction gets phosphate cement, mineral admixture, thickener, carbonate or bicarbonate, foam stabilizer and water ready, then will
Phosphate cement, mineral admixture, thickener, carbonate or bicarbonate and foam stabilizer are well mixed, add water and stir together
Mix, pour, be molded and conserving and be obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710291622.8A CN106927781A (en) | 2017-04-28 | 2017-04-28 | One kind is with CO2Phosphate cement foam concrete for foamed gas and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710291622.8A CN106927781A (en) | 2017-04-28 | 2017-04-28 | One kind is with CO2Phosphate cement foam concrete for foamed gas and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108298944A (en) * | 2018-05-11 | 2018-07-20 | 重庆大学 | A kind of phosphate cement foam concrete and preparation method thereof |
| CN112624661A (en) * | 2020-11-17 | 2021-04-09 | 江苏博拓新型建筑材料股份有限公司 | Autoclaved aerated concrete foam stabilizer and preparation method thereof |
| CN113264734A (en) * | 2021-06-04 | 2021-08-17 | 河海大学 | Sludge curing material based on cement-based carbon dioxide foam and sludge curing method and application thereof |
| CN113277787A (en) * | 2021-06-04 | 2021-08-20 | 河海大学 | Light CO based on carbonization2Foam cement-based material and optimized preparation method and application thereof |
| CN113493340A (en) * | 2020-03-19 | 2021-10-12 | 山东坊能新动能科学研究院有限公司 | Magnesium phosphate-based foam concrete heat-insulating material |
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| CN102561532A (en) * | 2011-12-16 | 2012-07-11 | 南京航空航天大学 | Functionally-graded cellular-concrete thermal-insulating material and preparation method thereof |
| CN104496532A (en) * | 2014-12-14 | 2015-04-08 | 北京工业大学 | Foamed magnesium phosphate cement material |
| CN104556954A (en) * | 2014-12-19 | 2015-04-29 | 西南科技大学 | Magnesium phosphate cement-base porous material and preparation method thereof |
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| JPS5374523A (en) * | 1976-12-15 | 1978-07-03 | Shikoku Kaken Kogyo Kk | Light weight fireeproof molded plate |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108298944A (en) * | 2018-05-11 | 2018-07-20 | 重庆大学 | A kind of phosphate cement foam concrete and preparation method thereof |
| CN113493340A (en) * | 2020-03-19 | 2021-10-12 | 山东坊能新动能科学研究院有限公司 | Magnesium phosphate-based foam concrete heat-insulating material |
| CN112624661A (en) * | 2020-11-17 | 2021-04-09 | 江苏博拓新型建筑材料股份有限公司 | Autoclaved aerated concrete foam stabilizer and preparation method thereof |
| CN112624661B (en) * | 2020-11-17 | 2022-06-17 | 江苏博拓新型建筑材料股份有限公司 | Autoclaved aerated concrete foam stabilizer and preparation method thereof |
| CN113264734A (en) * | 2021-06-04 | 2021-08-17 | 河海大学 | Sludge curing material based on cement-based carbon dioxide foam and sludge curing method and application thereof |
| CN113277787A (en) * | 2021-06-04 | 2021-08-20 | 河海大学 | Light CO based on carbonization2Foam cement-based material and optimized preparation method and application thereof |
| CN113277787B (en) * | 2021-06-04 | 2021-12-07 | 河海大学 | Light CO based on carbonization2Foam cement-based material and optimized preparation method and application thereof |
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