CN105174895A - Light waterproof heat preservation material for building external wall and preparing method of light waterproof heat preservation material - Google Patents
Light waterproof heat preservation material for building external wall and preparing method of light waterproof heat preservation material Download PDFInfo
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Abstract
The invention relates to a light waterproof heat preservation material for a building external wall and a preparing method of the light waterproof heat preservation material. The light waterproof heat preservation material is prepared from 100-150 parts of modified fly ash, 30-50 parts of flue gas desulfurization gypsum, 20-30 parts of foam glass, 5-8 parts of alkali-activator, 10-15 parts of cement, 6-10 parts of sepiolite fibers, 5-10 parts of hydroxyethyl methyl cellulose, 1-2 parts of acrylic acid, 1-1.5 parts of water repellent agents, 1.5-2.5 parts of water reducing agents, 2-4 parts of polysiloxane and 20-25 parts of foaming agents, and is prepared through the preparing method which comprises the first step of modified fly ash preparation, the second step of gunk preparation, the third step of foaming paste preparation, the fourth step of pouring forming and the fifth step of standing foaming and mold releasing. By means of the scheme, the high-calcium coal ash and the flue gas desulfurization gypsum serve as raw materials, and industrial sold waste materials are recycled under the action of the alkali-activator; thus, the pure inorganic material high in compressive strength and excellent in waterproof heat preservation performance is provided.
Description
Technical field
The present invention relates to a kind of material of construction, particularly relate to a kind of light-weight water-proof lagging material used for building exterior wall and preparation method thereof.
Background technology
In the prior art, general building thermal insulation material is mainly divided into organic materials and inorganic materials, in organic materials, as styrofoam, and urethane, rubber powder granule etc.; In inorganic materials, as gas concrete, rock wool, glass bead.
The current building heat preservation product of China is mainly organic materials class, is that light weight, thermal conductivity are low, the advantage of high insulating effect because organic materials series products has, is widely used in north cold area.
General requirement external-wall heat-insulation material is with water resistance, because lagging material is generally porous material, if there is seepage inner inlet, water destroys the medium of material insulation by becoming, heat is scattered and disappeared rapidly by the conduction of WATER AS FLOW MEDIUM, lagging material is made to lose the effect of insulation, the water-proof heat-insulation material many employings urethane generally adopted in the market, the organic polymers such as polystyrene and inorganic materials are carried out compound and are obtained, but it is low to there is ultimate compression strength, viscosifying power is poor, the problem such as inflammable, therefore, there is provided a kind of ultimate compression strength large, tool is of great significance by the pure inorganic materials with excellent waterproof thermal-insulated performance.
Summary of the invention
In view of this, the main purpose of invention is to provide a kind of light-weight water-proof lagging material used for building exterior wall and preparation method thereof, pass through the technical program, utilize high-calcium fly ass, desulfurated plaster for raw material, under alkali-activator effect, obtain the lagging material with advantages of higher compressive strength, by adding multicellular glass, can obtain under whipping agent effect and there is cavernous material, further increase heat insulation effect, and under the effect of dodecyltrimethoxysilane hydrophobizing agent, give material and there is excellent water resistance.
In order to achieve the above object, technical scheme of the present invention realizes like this.
A kind of light-weight water-proof lagging material used for building exterior wall, following material is made by following weight part:
Modified coal ash 100-150, desulfurated plaster 30-50 part, multicellular glass 20-30 part, alkali-activator 5-8 part, cement 10-15 part, sepiolite fibre 6-10 part, hydroxyethylmethyl-cellulose 5-10 part, calcium acrylate 1-2 part; Hydrophobizing agent 1-1.5 part, water reducer 1.5-2.5 part, polysiloxane 2-4 part, whipping agent 20-25 part.
As further technical scheme, described modified coal ash is prepared from by high-calcium fly ass, properties-correcting agent, aqueous ethanolic solution, hydrochloric acid soln.
Content >=14% calcareous in described high-calcium fly ass.
Described properties-correcting agent is vinyl hexadecyldimethylamine TMOS.
Described alkali-activator is the mixture of unslaked lime and water glass, and the Mixing ratio by weight example of unslaked lime and water glass is 1:1.
Described cement is early-strength type 42.5R Portland blast furnace slag cement.
Described hydrophobizing agent is dodecyltrimethoxysilane.
Described water reducer is poly carboxylic acid.
Described whipping agent to be concentration be 10% industrial hydrogen peroxide solution.
A preparation method for light-weight water-proof lagging material used for building exterior wall, makes according to the following steps:
(1) modified coal ash preparation:
Preparation and high-calcium fly ass weight ratio are the aqueous ethanolic solution of 2:3, by the hydrochloric acid soln adjust ph to 4.0 of 0.1M, high-calcium fly ass is dispersed in above-mentioned solution, under in the water-bath of 40 ° of C, the rotating speed of 600r/min stirs, dropwise adding with high-calcium fly ass weight ratio is the vinyl hexadecyldimethylamine TMOS of 1:100, continues to stir 1h after completing, eventually pass suction filtration, washing, fully dry, pulverize under 80 ° of C, obtain modified coal ash;
(2) Preblend preparation:
Take modified coal ash 100-150 part, desulfurated plaster 30-50 part, multicellular glass 20-30 part, alkali-activator 5-8 part, cement 10-15 part, sepiolite fibre 6-10 part, hydroxyethylmethyl-cellulose 5-10 part, with 400r/min mix 2 minutes in homogenizer at 40 ° of C temperature, mix acquisition Preblend;
(3) foamed slurry is prepared into:
In the Preblend of step (2), successively add calcium acrylate 1-2 part, hydrophobizing agent 1-1.5 part, water reducer 1.5-2.5 part, polysiloxane 2-4 part, whipping agent 20-25 part in order, under 600r/min rotating speed, stir 5min obtain foamed slurry;
(4) build shaping:
Being poured in shaping mould by the slurry prepared by step (3), is 60% in relative humidity, envrionment temperature be under the environment of 37 ° of C in leave standstill foaming;
(5) the foaming demoulding is left standstill:
After 24 hours, be 22 ° of C in temperature, relative humidity is carry out demoulding maintenance under 70% condition, and its ultimate compression strength and heat-insulating property index are tested in maintenance after 28 days, proceed to stockyard after qualified.
Beneficial effect after employing technique scheme is: a kind of light-weight water-proof lagging material used for building exterior wall and preparation method thereof, pass through the technical program, utilize high-calcium fly ass, desulfurated plaster for raw material, under alkali-activator effect, the water-proof heat-insulation material with advantages of higher compressive strength can be obtained, achieve again the recycle of industrial solid castoff simultaneously; By adding the materials such as multicellular glass, can obtain under whipping agent effect and there is cavernous lagging material, and by introducing dodecyltrimethoxysilane hydrophobizing agent imparting material, there is excellent water resistance; Thus provide a kind of ultimate compression strength large and there is the pure inorganic materials of excellent waterproof thermal-insulated performance.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is described in further detail.
The one that the present invention relates to light-weight water-proof lagging material used for building exterior wall, following material is made by following weight part.
Modified coal ash 100-150, desulfurated plaster 30-50 part, multicellular glass 20-30 part, alkali-activator 5-8 part, cement 10-15 part, sepiolite fibre 6-10 part, hydroxyethylmethyl-cellulose 5-10 part, calcium acrylate 1-2 part; Hydrophobizing agent 1-1.5 part, water reducer 1.5-2.5 part, polysiloxane 2-4 part, whipping agent 20-25 part.
In technical scheme of the present invention, described modified coal ash is prepared from by high-calcium fly ass, properties-correcting agent, aqueous ethanolic solution, hydrochloric acid soln.
Content >=14% calcareous in described high-calcium fly ass.
Described properties-correcting agent is vinyl hexadecyldimethylamine TMOS.
Described alkali-activator is the mixture of unslaked lime and water glass, and the Mixing ratio by weight example of unslaked lime and water glass is 1:1.
Described cement is early-strength type 42.5R Portland blast furnace slag cement.
Described hydrophobizing agent is dodecyltrimethoxysilane.
Described water reducer is poly carboxylic acid.
Described whipping agent to be concentration be 10% industrial hydrogen peroxide solution.
The preparation method of the light-weight water-proof lagging material a kind of used for building exterior wall that the present invention relates to, makes according to the following steps:
(1) modified coal ash preparation:
Preparation and high-calcium fly ass weight ratio are the aqueous ethanolic solution of 2:3, by the hydrochloric acid soln adjust ph to 4.0 of 0.1M, high-calcium fly ass is dispersed in above-mentioned solution, under in the water-bath of 40 ° of C, the rotating speed of 600r/min stirs, dropwise adding with high-calcium fly ass weight ratio is the vinyl hexadecyldimethylamine TMOS of 1:100, continues to stir 1h after completing, eventually pass suction filtration, washing, fully dry, pulverize under 80 ° of C, obtain modified coal ash.
(2) Preblend preparation:
Take modified coal ash 100-150 part, desulfurated plaster 30-50 part, multicellular glass 20-30 part, alkali-activator 5-8 part, cement 10-15 part, sepiolite fibre 6-10 part, hydroxyethylmethyl-cellulose 5-10 part, with 400r/min mix 2 minutes in homogenizer at 40 ° of C temperature, mix acquisition Preblend;
(3) foamed slurry is prepared into:
In the Preblend of step (2), successively add calcium acrylate 1-2 part, hydrophobizing agent 1-1.5 part, water reducer 1.5-2.5 part, polysiloxane 2-4 part, whipping agent 20-25 part in order, under 600r/min rotating speed, stir 5min obtain foamed slurry;
(4) build shaping:
Being poured in shaping mould by the slurry prepared by step (3), is 60% in relative humidity, envrionment temperature be under the environment of 37 ° of C in leave standstill foaming;
(5) the foaming demoulding is left standstill:
After 24 hours, be 22 ° of C in temperature, relative humidity is carry out demoulding maintenance under 70% condition, and its ultimate compression strength and heat-insulating property index are tested in maintenance after 28 days, proceed to stockyard after qualified.
embodiment 1
(1) modified coal ash is prepared: preparation and high-calcium fly ass weight ratio are the aqueous ethanolic solution of 2:3, by the hydrochloric acid soln adjust ph to 4.0 of 0.1M, high-calcium fly ass is dispersed in above-mentioned solution, under in the water-bath of 40 ° of C, the rotating speed of 600r/min stirs, dropwise adding with high-calcium fly ass weight ratio is the vinyl hexadecyldimethylamine TMOS of 1:100, continue after completing to stir 1h, eventually pass suction filtration, washing, fully dry under 80 ° of C, pulverize, obtain modified coal ash.
(2) take 100 parts of modified coal ashs, 50 parts of desulfurated plasters, 30 parts of multicellular glass, 6 parts of alkali-activators, 11 parts of cement, 8 parts of sepiolite fibres, 6 parts of hydroxyethylmethyl-celluloses in homogenizer under 40 ° of C 400r/min mix 2min mix to obtain Preblend;
(3) in above-mentioned Preblend, add 1 part of calcium acrylate, 1 part of hydrophobizing agent, 2.0 parts of water reducers, 2 parts of polysiloxane, 22 parts of whipping agents by along priority, under 600r/min, stir 5min obtain slurry;
(4) prepared slurry is poured in mould, at the temperature of 37 ° of C, in the environment of relative humidity 60%, leaves standstill foaming;
(5) carry out demoulding maintenance after leaving standstill foaming 24h, curing temperature is 22 ° of C, and relative humidity is 70%, and maintenance tested the performance index such as its ultimate compression strength after 28 days.
embodiment 2
(1) first modified coal ash is prepared: preparation and high-calcium fly ass weight ratio are the aqueous ethanolic solution of 2:3, by the hydrochloric acid soln adjust ph to 4.0 of 0.1M, high-calcium fly ass is dispersed in above-mentioned solution, under in the water-bath of 40 ° of C, the rotating speed of 600r/min stirs, dropwise adding with high-calcium fly ass weight ratio is the vinyl hexadecyldimethylamine TMOS of 1:100, continue after completing to stir 1h, eventually pass suction filtration, washing, fully dry under 80 ° of C, pulverize, obtain modified coal ash;
(2) take 110 parts of modified coal ashs, 40 parts of desulfurated plasters, 28 parts of multicellular glass, 5 parts of alkali-activators, 10 parts of cement, 6 parts of sepiolite fibres, 7 parts of hydroxyethylmethyl-celluloses in homogenizer under 40 ° of C 400r/min mix 2min mix to obtain Preblend;
(3) in above-mentioned Preblend, add 1.5 parts of calcium acrylates, 1.2 parts of hydrophobizing agents, 2.0 parts of water reducers, 3 parts of polysiloxane, 20 parts of whipping agents by along priority, under 600r/min, stir 5min obtain slurry;
(4) prepared slurry is poured in mould, at the temperature of 37 ° of C, in the environment of relative humidity 60%, leaves standstill foaming;
(5) carry out demoulding maintenance after leaving standstill foaming 24h, curing temperature is 22 ° of C, and relative humidity is 70%, and maintenance tested the performance index such as its ultimate compression strength after 28 days.
embodiment 3
(1) first modified coal ash is prepared: preparation and high-calcium fly ass weight ratio are the aqueous ethanolic solution of 2:3, by the hydrochloric acid soln adjust ph to 4.0 of 0.1M, high-calcium fly ass is dispersed in above-mentioned solution, under in the water-bath of 40 ° of C, the rotating speed of 600r/min stirs, dropwise adding with high-calcium fly ass weight ratio is the vinyl hexadecyldimethylamine TMOS of 1:100, continue after completing to stir 1h, eventually pass suction filtration, washing, fully dry under 80 ° of C, pulverize, obtain modified coal ash;
(2) take 120 parts of modified coal ashs, 30 parts of desulfurated plasters, 26 parts of multicellular glass, 8 parts of alkali-activators, 15 parts of cement, 10 parts of sepiolite fibres, 10 parts of hydroxyethylmethyl-celluloses in homogenizer under 40 ° of C 400r/min mix 2min mix to obtain Preblend;
(3) in above-mentioned Preblend, add 1.5 parts of calcium acrylates, 1.5 parts of hydrophobizing agents, 1.5 parts of water reducers, 4 parts of polysiloxane, 24 parts of whipping agents by along priority, under 600r/min, stir 5min obtain slurry;
(4) prepared slurry is poured in mould, at the temperature of 37 ° of C, in the environment of relative humidity 60%, leaves standstill foaming;
(5) carry out demoulding maintenance after leaving standstill foaming 24h, curing temperature is 22 ° of C, and relative humidity is 70%, and maintenance tested the performance index such as its ultimate compression strength after 28 days.
embodiment 4
(1) first modified coal ash is prepared: preparation and high-calcium fly ass weight ratio are the aqueous ethanolic solution of 2:3, by the hydrochloric acid soln adjust ph to 4.0 of 0.1M, high-calcium fly ass is dispersed in above-mentioned solution, under in the water-bath of 40 ° of C, the rotating speed of 600r/min stirs, dropwise adding with high-calcium fly ass weight ratio is the vinyl hexadecyldimethylamine TMOS of 1:100, continue after completing to stir 1h, eventually pass suction filtration, washing, fully dry under 80 ° of C, pulverize, obtain modified coal ash;
(2) take 130 parts of modified coal ashs, 35 parts of desulfurated plasters, 25 parts of multicellular glass, 6 parts of alkali-activators, 13 parts of cement, 7 parts of sepiolite fibres, 8 parts of hydroxyethylmethyl-celluloses in homogenizer under 40 ° of C 400r/min mix 2min mix to obtain Preblend;
(3) in above-mentioned Preblend, add 1.6 parts of calcium acrylates, 1.4 parts of hydrophobizing agents, 2.0 parts of water reducers, 3 parts of polysiloxane, 20-25 part whipping agents by along priority, under 600r/min, stir 5min obtain slurry;
(4) prepared slurry is poured in mould, at the temperature of 37 ° of C, in the environment of relative humidity 60%, leaves standstill foaming;
(5) carry out demoulding maintenance after leaving standstill foaming 24h, curing temperature is 22 ° of C, and relative humidity is 70%, and maintenance tested the performance index such as its ultimate compression strength after 28 days.
embodiment 5
(1) first modified coal ash is prepared: preparation and high-calcium fly ass weight ratio are the aqueous ethanolic solution of 2:3, by the hydrochloric acid soln adjust ph to 4.0 of 0.1M, high-calcium fly ass is dispersed in above-mentioned solution, under in the water-bath of 40 ° of C, the rotating speed of 600r/min stirs, dropwise adding with high-calcium fly ass weight ratio is the vinyl hexadecyldimethylamine TMOS of 1:100, continue after completing to stir 1h, eventually pass suction filtration, washing, fully dry under 80 ° of C, pulverize, obtain modified coal ash;
(2) take 150 parts of modified coal ashs, 45 parts of desulfurated plasters, 24 parts of multicellular glass, 6.5 parts of alkali-activators, 14 parts of cement, 9 parts of sepiolite fibres, 7 parts of hydroxyethylmethyl-celluloses in homogenizer under 40 ° of C 400r/min mix 2min mix to obtain Preblend;
(3) in above-mentioned Preblend, add 1.4 parts of calcium acrylates, 1.3 parts of hydrophobizing agents, 1.5 parts of water reducers, 4 parts of polysiloxane, 24 parts of whipping agents by along priority, under 600r/min, stir 5min obtain slurry;
(4) prepared slurry is poured in mould, at the temperature of 37 ° of C, in the environment of relative humidity 60%, leaves standstill foaming;
(5) carry out demoulding maintenance after leaving standstill foaming 24h, curing temperature is 22 ° of C, and relative humidity is 70%, and maintenance tested the performance index such as its ultimate compression strength after 28 days.
The main performance index detected result of the embodiment of the present invention is as shown in table 1.
The main performance index of table 1, each embodiment sample
| Sequence number | Test event | Unit | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| 1 | Ultimate compression strength | MPa | 0.32 | 0.37 | 0.35 | 0.34 | 0.38 |
| 2 | Thermal conductivity | W/(m·K) | 0.056 | 0.059 | 0.052 | 0.058 | 0.060 |
| 3 | Impermeability pressure (28d) | MPa | 1.6 | 1.6 | 1.7 | 1.8 | 1.5 |
| 4 | Water-intake rate | % | 3.8 | 3.7 | 3.5 | 3.4 | 3.6 |
The present invention with high-calcium fly ass and desulfurated plaster for main raw material, in conjunction with other inorganic materials and chemical activator, prepare light-weight water-proof lagging material, have that technique is simple, the feature of dependable performance, good stability, more than one times of prior art is all better than in the ultimate compression strength of five embodiments detects, wherein best with the ultimate compression strength of embodiment five; In five embodiments, heat insulation effect also all increases, wherein with the heat insulation effect of embodiment three for the best, in five embodiments, substantially increase the water resistance of material by adding hydrophobizing agent and polysiloxane, wherein best with the waterproof effect of embodiment four.
The above embodiment is only and absolutely proves the present invention and the preferred embodiment of lifting.
Protection scope of the present invention is not limited thereto, the equivalent alternative or conversion that those skilled in the art do on basis of the present invention, all within protection scope of the present invention.
Claims (10)
1. a light-weight water-proof lagging material used for building exterior wall, is characterized in that, following material is made by following weight part:
Modified coal ash 100-150 part, desulfurated plaster 30-50 part, multicellular glass 20-30 part, alkali-activator 5-8 part, cement 10-15 part, sepiolite fibre 6-10 part, hydroxyethylmethyl-cellulose 5-10 part, calcium acrylate 1-2 part; Hydrophobizing agent 1-1.5 part, water reducer 1.5-2.5 part, polysiloxane 2-4 part, whipping agent 20-25 part.
2. light-weight water-proof lagging material used for building exterior wall according to claim 1, it is characterized in that, described modified coal ash is prepared from by high-calcium fly ass, properties-correcting agent, aqueous ethanolic solution, hydrochloric acid soln.
3. light-weight water-proof lagging material used for building exterior wall according to claim 2, is characterized in that, content >=14% calcareous in described high-calcium fly ass.
4. light-weight water-proof lagging material used for building exterior wall according to claim 2, is characterized in that, described properties-correcting agent is vinyl hexadecyldimethylamine TMOS.
5. light-weight water-proof lagging material used for building exterior wall according to claim 1, is characterized in that, described alkali-activator is the mixture of unslaked lime and water glass, and the Mixing ratio by weight example of unslaked lime and water glass is 1:1.
6. light-weight water-proof lagging material used for building exterior wall according to claim 1, is characterized in that, described cement is early-strength type 42.5R Portland blast furnace slag cement.
7. light-weight water-proof lagging material used for building exterior wall according to claim 1, is characterized in that, described hydrophobizing agent is dodecyltrimethoxysilane.
8. water-proof heat-insulation material according to claim 1, is characterized in that, described water reducer is poly carboxylic acid.
9. light-weight water-proof lagging material used for building exterior wall according to claim 1, is characterized in that, described whipping agent to be concentration be 10% industrial hydrogen peroxide solution.
10. a preparation method for light-weight water-proof lagging material used for building exterior wall, is characterized in that, make according to the following steps:
(1) modified coal ash preparation:
Preparation and high-calcium fly ass weight ratio are the aqueous ethanolic solution of 2:3; by the hydrochloric acid soln adjust ph to 4.0 of 0.1M; high-calcium fly ass is dispersed in above-mentioned solution; under in the water-bath of 40 ° of C, the rotating speed of 600r/min stirs, dropwise adding with high-calcium fly ass weight ratio is the vinyl hexadecyldimethylamine TMOS of 1:100, continues to stir 1h after completing; eventually pass suction filtration, washing; fully dry, pulverize under 80 ° of C, obtain modified coal ash;
(2) Preblend preparation:
Take 100-150 part modified coal ash, 30-50 part desulfurated plaster, 20-30 part multicellular glass, 5-8 part alkali-activator, 10-15 part cement, 6-10 part sepiolite fibre, 5-10 part hydroxyethylmethyl-cellulose in homogenizer under 40 ° of C 400r/min mix 2min mix to obtain Preblend;
(3) foamed slurry is prepared into:
In the Preblend of step (2), successively add calcium acrylate 1-2 part, hydrophobizing agent 1-1.5 part, water reducer 1.5-2.5 part, polysiloxane 2-4 part, whipping agent 20-25 part in order, under 600r/min rotating speed, stir 5min obtain foamed slurry;
(4) build shaping:
Being poured in shaping mould by the slurry prepared by step (3), is 60% in relative humidity, envrionment temperature be under the environment of 37 ° of C in leave standstill foaming;
(5) the foaming demoulding is left standstill:
After 24 hours, be 22 ° of C in temperature, relative humidity is carry out demoulding maintenance under 70% condition, and its ultimate compression strength and heat-insulating property index are tested in maintenance after 28 days, proceed to stockyard after qualified.
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| CN105837149A (en) * | 2016-03-25 | 2016-08-10 | 东南大学 | Original-status flue gas desulfurization gypsum polyphenyl granule light-weight heat insulation material and preparation method thereof |
| CN109704724A (en) * | 2018-08-27 | 2019-05-03 | 苏州谦合诚智能科技有限公司 | A kind of porous sound absorption new material and preparation method thereof |
| CN112250385A (en) * | 2020-10-23 | 2021-01-22 | 舒城诚鑫建材有限公司 | Light flame-retardant heat-insulating material for building exterior wall and preparation method thereof |
| CN115368160A (en) * | 2022-09-19 | 2022-11-22 | 陕西地矿第三地质队有限公司 | Aerated brick and production process thereof |
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| CN102344298A (en) * | 2010-07-29 | 2012-02-08 | 西北民族大学 | Foamed concrete heat-preservation and load-bearing brick and production method thereof |
| CN102850825A (en) * | 2012-09-11 | 2013-01-02 | 安徽理工大学 | Method and application for carrying out fly ash floating bead surface modification by using compound coupling agent |
| CN103964805A (en) * | 2014-05-27 | 2014-08-06 | 哈尔滨工业大学 | Preparation method of coal ash-desulphurization gypsum thermal-insulation board |
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| CN101113088A (en) * | 2007-07-06 | 2008-01-30 | 杨子江 | Production method for cold-foaming coal ash baking-free ceramicite |
| CN102344298A (en) * | 2010-07-29 | 2012-02-08 | 西北民族大学 | Foamed concrete heat-preservation and load-bearing brick and production method thereof |
| CN102850825A (en) * | 2012-09-11 | 2013-01-02 | 安徽理工大学 | Method and application for carrying out fly ash floating bead surface modification by using compound coupling agent |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105837149A (en) * | 2016-03-25 | 2016-08-10 | 东南大学 | Original-status flue gas desulfurization gypsum polyphenyl granule light-weight heat insulation material and preparation method thereof |
| CN105837149B (en) * | 2016-03-25 | 2017-12-19 | 东南大学 | A kind of original state desulfurated plaster granular polystyrene light heat insulation material and preparation method thereof |
| CN109704724A (en) * | 2018-08-27 | 2019-05-03 | 苏州谦合诚智能科技有限公司 | A kind of porous sound absorption new material and preparation method thereof |
| CN112250385A (en) * | 2020-10-23 | 2021-01-22 | 舒城诚鑫建材有限公司 | Light flame-retardant heat-insulating material for building exterior wall and preparation method thereof |
| CN115368160A (en) * | 2022-09-19 | 2022-11-22 | 陕西地矿第三地质队有限公司 | Aerated brick and production process thereof |
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| CN105174895B (en) | 2018-06-15 |
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