CN114573368A - Lightweight heat-insulating aerated building block and preparation method thereof - Google Patents
Lightweight heat-insulating aerated building block and preparation method thereof Download PDFInfo
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- CN114573368A CN114573368A CN202210408960.6A CN202210408960A CN114573368A CN 114573368 A CN114573368 A CN 114573368A CN 202210408960 A CN202210408960 A CN 202210408960A CN 114573368 A CN114573368 A CN 114573368A
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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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
- C04B40/024—Steam hardening, e.g. in an autoclave
-
- 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
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention relates to the field of building materials, and particularly discloses a light heat-insulating aerated building block and a preparation method thereof. A preparation method of a lightweight heat-insulating aerated building block comprises the following steps: step 1), uniformly mixing water, a thickening agent and acetone to obtain an acetone solution; step 2), putting cement, fly ash, lime and sand into the acetone solution, and uniformly mixing to obtain a mixture; step 3), pouring the mixture into a mold to form a blank; step 4), heating and steam curing the embryo body, wherein the steam curing temperature is 48-49 ℃, and the steam curing time is 120-; step 5), raising the steam curing temperature to 54.5-55 ℃, and performing steam curing for 80-85 min; step 6), raising the steam curing temperature to 60-61 ℃, and performing steam curing for 5-6 h; and 7), demolding to obtain the light heat-insulating aerated building block. The invention has the advantage of improving the compressive strength of the aerated building block.
Description
Technical Field
The invention relates to the field of building materials, in particular to a light heat-insulating aerated building block and a preparation method thereof.
Background
The aerated building block is a novel lightweight porous building material, has good heat preservation and insulation effects, and is widely applied to high-rise buildings.
The existing aerated building blocks usually adopt aluminum powder as a foaming agent, and the aluminum powder reacts with water to generate hydrogen so as to form air holes in the building blocks.
The aluminum powder is oxidized in the air to generate an inert aluminum oxide protective film which prevents the aluminum from contacting with water, when the aluminum powder is added into the mixture, the mixture belongs to an alkaline solution, the aluminum oxide is dissolved to generate meta-aluminate, when the aluminum oxide is dissolved, the metal aluminum reacts with the water to replace the hydrogen in the water and generate gel-like aluminum hydroxide, the aluminum hydroxide also prevents the water from contacting with the metal aluminum, and the aluminum hydroxide is required to be dissolved in the alkaline solution to generate the meta-aluminate, so that the metal aluminum contacts with the water again to generate hydrogen, the process is repeated in a cycle, the aluminum powder continuously generates the hydrogen in the mixture, the hydrogen generation speed is controlled, the generated bubbles are small, and large-aperture cavities are not easy to form.
However, in the conventional process, the blank needs to be subjected to static curing and steam curing for a long time, although the bubbles in the blank are small, the aggregate in the blank precipitates with the passage of time, so that the blank has inconsistent consistency and the constraint force on the bubbles is not uniformly distributed, and the constraint force on the bubbles is weaker as the blank approaches the surface, so that the phenomenon that the diameter of the bottom cells is smaller and the diameter of the cells approaching the surface is larger is caused.
The larger the diameter of the cells close to the surface, the lower the density of the aerated block close to the surface, the lower the strength, the easier local damage of the aerated block, the lower overall compressive strength, and the difficulty in meeting the engineering requirements, so that the aerated block has an improvement space.
Disclosure of Invention
In order to improve the compressive strength of the aerated building block, the application provides a light heat-insulating aerated building block and a preparation method thereof.
In a first aspect, the application provides a preparation method of a light heat-insulating aerated building block, which adopts the following technical scheme:
a preparation method of a lightweight heat-insulating aerated building block comprises the following steps:
step 1), uniformly mixing water, a thickening agent and acetone to obtain an acetone solution;
step 2), putting cement, fly ash, lime and sand into an acetone solution, and uniformly mixing to obtain a mixture;
step 3), pouring the mixture into a mold to form a blank;
step 4), heating and steam curing the embryo body, wherein the steam curing temperature is 48-49 ℃, and the steam curing time is 120-;
step 5), raising the steam curing temperature to 54.5-55 ℃, and performing steam curing for 80-85 min;
step 6), raising the steam curing temperature to 60-61 ℃, and performing steam curing for 5-6 h;
step 7), demolding to obtain the lightweight heat-insulating aerated building block;
the aerated building block is prepared from the following raw materials in parts by weight:
100 parts of water;
43-45 parts of cement;
94-100 parts of fly ash;
140 portions of lime 132-;
1150-1180 parts of sand;
3-5 parts of a thickening agent;
0.5-0.6 part of acetone.
By adopting the technical scheme, the acetone is used as the foaming agent and is matched with a special steam curing process, so that the prepared aerated building block has uniform pore distribution and uniform pore diameter, and the compressive strength of the aerated building block is higher.
The boiling point of the acetone is 56.48 ℃, the foaming process can be controlled by controlling the steam curing temperature, the gel material can generate hydration reaction by steaming at 48-49 ℃ for 120-130min, and the acetone hardly vaporizes because the temperature is far away from the boiling point of the acetone, so that bubbles are not easily formed in the embryo body, after the first stage steam curing is completed, the gel material generates hydration reaction to a certain degree, the consistency of the whole embryo body is higher by matching with the action of a thickening agent, then the second stage steam curing is carried out, the temperature is 54.5-55 ℃, the boiling point of the acetone is not reached but is relatively close, so that the acetone does not vaporize violently but gradually starts to vaporize, fine bubbles are generated successively, the generation speed of the bubbles is effectively controlled, a large amount of micro bubbles are formed in the embryo body, and the time matched with the second stage steam curing is 80-85min, make the evaporation of most acetone completion, form the bubble, evenly distributed is in the idiosome, then get into the third stage and evaporate foster, because evaporate foster temperature and be higher than the acetone boiling point, make remaining acetone evaporate completely, fully foam, and at this moment, a period of time has passed through evaporate foster, the idiosome begins to have certain intensity, make the last acetone gas that vaporizes be difficult to break through the constraint of concrete system, only can form stable bubble in the system, and remaining liquid acetone residual is few, only can form tiny bubble, through the cooperation of evaporating foster of three stages, make the gas pocket distribution in the aerated building block that makes even, the aperture is less, the aperture distributes evenly, when making the aerated building block atress, reduce local weak point, can wholly share the effort, reflect the effective promotion of compressive strength, application scope is wider.
Because acetone is dissolved in water, after stirring, the acetone can be dispersed in the water uniformly and distributed at all corners of the system, so that bubbles generated during steam curing foaming are distributed uniformly, the performance of the building block is distributed uniformly, local weak points are greatly reduced, and the compressive strength of the building block is higher.
Preferably, in the step 4), the steam curing pressure is 0.3-0.4 MPa.
Through adopting above-mentioned technical scheme, through adopting special pressure condition for steam-curing effect preferred, and owing to not starting the foaming this moment, the energy can be wasted to too big meeting of pressure, and suitable pressure can reduce the energy extravagant.
Preferably, in the step 5), the steam-curing pressure is 0.5-0.6 MPa.
Through adopting above-mentioned technical scheme, through adopting suitable pressure for the bubble can produce smoothly, makes to form densely covered tiny bubble in the idiosome, and the foaming effect preferred, and be difficult for leading to the idiosome excessive expansion fracture because of pressure is not enough, makes the foaming quality better.
Preferably, in the step 6), the steam-curing pressure is 1-1.1 MPa.
Through adopting above-mentioned technical scheme, through adopting suitable pressure for acetone reaches the boiling point after, the pressure improves in the bubble, and through the increase of external pressure, offset each other, make the building block be difficult for appearing the excessive expansion fracture, thereby reduce gas leakage phenomenon, make the building block quality preferred that makes.
Preferably, in the step 3), after the mixture is poured into a mold, the mixture is tamped to form a blank.
Through adopting above-mentioned technical scheme, through the tamping, reduce the bubble in the mixture for bubble in the embryo is produced by acetone vaporization foaming, makes in the building block harmful bubble less, and the bubble distributes evenly, and the aperture is even, and whole bearing capacity is stronger, and compressive strength is higher.
Preferably, the thickener is a cellulosic thickener.
By adopting the technical scheme, the thickening effect is better by adopting the cellulose thickening agent.
Preferably, the thickener is hydroxymethyl cellulose.
Through adopting above-mentioned technical scheme, through specifically adopting hydroxymethyl cellulose for the effect of thickening is preferred, and does not have obvious negative effects to the cutting block performance, effectively retrains the bubble, reduces the bubble and removes, thereby makes the bubble distribute evenly, and the aperture is even, effectively improves the compressive strength of building block.
In a second aspect, the application provides a light heat-insulating aerated building block, which adopts the following technical scheme:
a light heat-insulating aerated building block is prepared by the preparation method of the light heat-insulating aerated building block.
By adopting the technical scheme, the prepared aerated building block has small and dense pore diameter and uniform pore distribution, can better share the acting force through the whole body when stressed, and has higher whole compressive strength and wider application range.
In summary, the present application has the following beneficial effects:
1. as the application adopts the acetone as the foaming agent to be matched with the special steam curing process, the prepared aerated building block has uniform pore distribution and uniform pore diameter, thereby leading the compressive strength of the aerated building block to be higher.
2. Preferred through the tamping in this application, reduces the bubble in the batch for bubble in the embryo is produced by acetone vaporization foaming, makes harmful bubble less in the building block, and the bubble distributes evenly, and the aperture is even, and whole bearing capacity is stronger, and compressive strength is higher.
3. Preferentially adopt hydroxymethyl cellulose through specifically in this application for the effect preferred of thickening, and do not have obvious negative effects to the cutting block performance, effectively retrain the bubble, reduce the bubble and remove, thereby make the bubble distribute evenly, the aperture is even, effectively improves the compressive strength of building block.
Detailed Description
The present application will be described in further detail with reference to examples.
The information on the source of the raw materials used in the following examples and comparative examples is detailed in Table 1.
TABLE 1
Example 1
A preparation method of a light heat-insulating aerated building block comprises the following steps:
step 1), putting 100kg of water, 3kg of thickening agent and 0.5kg of acetone into a stirring kettle, stirring for 1min at the rotating speed of 60r/min, and uniformly mixing to obtain an acetone solution.
And step 2), putting 43kg of cement, 94kg of fly ash, 132kg of lime and 1150kg of sand into the acetone solution, stirring for 3min at the rotating speed of 45r/min, and uniformly mixing to obtain a mixture.
And 3) pouring the mixture into a mold, tamping, and discharging air bubbles to form a blank.
And 4) feeding the embryo body into steam curing equipment, and heating and steam curing for 130min at the steam curing temperature of 48 ℃ and the steam curing pressure of 0.3 MPa.
And step 5), raising the steam curing temperature to 54.5 ℃, and raising the steam curing pressure to 0.5MPa for 85 min.
And 6), raising the steam curing temperature to 60 ℃, and raising the steam curing pressure to 1MPa for 6 hours.
And 7), taking out the blank, naturally cooling to room temperature, and demolding to obtain the light heat-insulating aerated building block.
In this example, the thickener is hydroxymethyl cellulose.
Example 2
A preparation method of a lightweight heat-insulating aerated building block comprises the following steps:
step 1), putting 100kg of water, 4kg of thickening agent and 0.55kg of acetone into a stirring kettle, stirring at the rotating speed of 60r/min for 1min, and uniformly mixing to obtain an acetone solution.
And step 2), putting 44kg of cement, 97kg of fly ash, 136kg of lime and 1165kg of sand into the acetone solution, stirring for 3min at the rotating speed of 45r/min, and uniformly mixing to obtain a mixture.
And 3) pouring the mixture into a mold, tamping, and discharging air bubbles to form a blank.
And 4) feeding the embryo body into steam curing equipment, and heating and steam curing for 125min at the steam curing temperature of 48.5 ℃ and the steam curing pressure of 0.35 MPa.
And 5) raising the steam-curing temperature to 54.8 ℃, wherein the steam-curing pressure is 0.55MPa, and the steam-curing time is 83 min.
And step 6), raising the steam curing temperature to 60.5 ℃, and raising the steam curing pressure to 1.05MPa for 5.5 hours.
And 7), taking out the blank, naturally cooling to room temperature, and demolding to obtain the light heat-insulating aerated building block.
In this example, the thickener is hydroxyethyl cellulose.
Example 3
A preparation method of a lightweight heat-insulating aerated building block comprises the following steps:
step 1), putting 100kg of water, 5kg of thickening agent and 0.6kg of acetone into a stirring kettle, stirring at the rotating speed of 60r/min for 1min, and uniformly mixing to obtain an acetone solution.
And step 2), putting 45kg of cement, 100kg of fly ash, 140kg of lime and 1180kg of sand into the acetone solution, stirring for 3min at the rotating speed of 45r/min, and uniformly mixing to obtain a mixture.
And 3) pouring the mixture into a mold, tamping, and discharging air bubbles to form a blank.
And 4) feeding the embryo body into steam curing equipment, and heating and steam curing for 120min at the steam curing temperature of 49 ℃ and the steam curing pressure of 0.4 MPa.
And 5) raising the steam curing temperature to 55 ℃, wherein the steam curing pressure is 0.6MPa, and the steam curing is carried out for 80 min.
And 6), raising the steam curing temperature to 61 ℃, and raising the steam curing pressure to 1.1MPa for 5 hours.
And 7), taking out the blank, naturally cooling to room temperature, and demolding to obtain the light heat-insulating aerated building block.
In this example, the thickener was hydroxypropyl methylcellulose.
Comparative example 1
A preparation method of a lightweight heat-insulating aerated building block comprises the following steps:
step 1), putting 100kg of water, 3kg of thickening agent, 43kg of cement, 94kg of fly ash, 132kg of lime and 1150kg of sand into a stirring kettle, stirring for 3min at the rotating speed of 60r/min, and uniformly mixing to obtain a premix.
And step 2), putting 0.5kg of aluminum powder into the premix, stirring for 1min at the rotation speed of 45r/min, and uniformly mixing to obtain a mixture.
And 3) pouring the mixture into a mold, tamping, and discharging air bubbles to form a blank.
And 4) feeding the embryo body into steam curing equipment, and heating and steam curing for 130min at the steam curing temperature of 48 ℃ and the steam curing pressure of 0.3 MPa.
And step 5), raising the steam curing temperature to 54.5 ℃, and raising the steam curing pressure to 0.5MPa for 85 min.
And 6), raising the steam curing temperature to 60 ℃, and raising the steam curing pressure to 1MPa for 6 hours.
And 7), taking out the blank, naturally cooling to room temperature, and demolding to obtain the light heat-insulating aerated building block.
In this comparative example, the thickener was hydroxymethyl cellulose.
Comparative example 2
A preparation method of a light heat-insulating aerated building block comprises the following steps:
step 1), putting 100kg of water, 3kg of thickening agent and 0.5kg of acetone into a stirring kettle, stirring at the rotating speed of 60r/min for 1min, and uniformly mixing to obtain an acetone solution.
And step 2), putting 43kg of cement, 94kg of fly ash, 132kg of lime and 1150kg of sand into the acetone solution, stirring for 3min at the rotating speed of 45r/min, and uniformly mixing to obtain a mixture.
And 3) pouring the mixture into a mold, tamping, and discharging air bubbles to form a blank.
And 4) feeding the embryo body into steam curing equipment, heating and steam curing, wherein the steam curing temperature is 60 ℃, the steam curing pressure is 1MPa, and the steam curing lasts for 10 hours.
And 5) taking out the blank, naturally cooling to room temperature, and demolding to obtain the light heat-insulating aerated building block.
In this comparative example, the thickener was hydroxymethyl cellulose.
Experiment 1
The 28-day compressive strength and density of samples prepared from the aerated blocks prepared in the examples and the comparative examples are detected according to GB/T4111-2013 'concrete block and brick test method'.
The assay data for experiment 1 is detailed in table 2.
TABLE 2
| 28d compressive Strength (MPa) | Density kg/m3 | |
| Example 1 | 10.64 | 425 |
| Example 2 | 10.79 | 422 |
| Example 3 | 10.58 | 426 |
| Comparative example 1 | 8.88 | 445 |
| Comparative example 2 | 6.8 | 367 |
According to the comparison of the data of the example 1 and the comparative example 1 in the table 2, the aerated building block prepared by adopting acetone as a foaming agent and matching with a special steam curing process has higher compressive strength, and the aerated building block prepared by the example 1 is proved to have uniform pore distribution, smaller and similar pore diameter, reduces local weak points, has better effect of integrally sharing acting force when stressed, and thus has higher compressive strength.
According to the comparison of the data of the example 1 and the comparative example 2 in the table 2, the compressive strength of the prepared aerated block is reduced rapidly by adopting acetone as a foaming agent without matching with a special steam curing process, because the acetone foaming is uncontrollable without matching with the special steam curing process, more large-aperture bubbles are generated, the pore size distribution of the bubbles is uneven, and a plurality of local weak points are formed, so that the aerated block is easy to be damaged from the local weak points, and the compressive strength of the aerated block is reduced.
The specific embodiments are only for explaining the present application and are not limiting to the present application, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the claims of the present application.
Claims (8)
1. A preparation method of a light heat-insulating aerated building block is characterized by comprising the following steps: the method comprises the following steps:
step 1), uniformly mixing water, a thickening agent and acetone to obtain an acetone solution;
step 2), putting cement, fly ash, lime and sand into an acetone solution, and uniformly mixing to obtain a mixture;
step 3), pouring the mixture into a mold to form a blank;
step 4), heating and steam curing the embryo body, wherein the steam curing temperature is 48-49 ℃, and the steam curing time is 120-;
step 5), raising the steam curing temperature to 54.5-55 ℃, and performing steam curing for 80-85 min;
step 6), raising the steam curing temperature to 60-61 ℃, and performing steam curing for 5-6 h;
step 7), demolding to obtain the lightweight heat-insulating aerated building block;
the aerated building block is prepared from the following raw materials in parts by weight:
100 parts of water;
43-45 parts of cement;
94-100 parts of fly ash;
140 portions of lime 132-;
1150-1180 parts of sand;
3-5 parts of a thickening agent;
0.5-0.6 part of acetone.
2. The preparation method of the lightweight heat-insulating aerated building block according to claim 1, characterized by comprising the following steps: in the step 4), the steam curing pressure is 0.3-0.4 MPa.
3. The preparation method of the lightweight heat-insulating aerated building block according to claim 2, characterized by comprising the following steps: in the step 5), the steam curing pressure is 0.5-0.6 MPa.
4. The preparation method of the lightweight heat-insulating aerated building block according to claim 3, characterized by comprising the following steps: in the step 6), the steam curing pressure is 1-1.1 MPa.
5. The preparation method of the lightweight heat-insulating aerated building block according to claim 1, characterized by comprising the following steps: in the step 3), after the mixture is poured into a mold, tamping is carried out to form a blank.
6. The preparation method of the lightweight heat-insulating aerated building block according to claim 1, characterized by comprising the following steps: the thickening agent is a cellulose thickening agent.
7. The preparation method of the lightweight heat-insulating aerated building block according to claim 6, characterized by comprising the following steps: the thickening agent is hydroxymethyl cellulose.
8. A light heat-insulating aerated building block is characterized in that: the lightweight thermal insulation aerated building block is prepared by the preparation method of the lightweight thermal insulation aerated building block according to any one of claims 1 to 7.
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| JP2011079686A (en) * | 2009-10-05 | 2011-04-21 | Asahi Kasei Construction Materials Co Ltd | Lightweight foamed concrete and method for producing the same |
| CN102765962A (en) * | 2012-07-30 | 2012-11-07 | 山东宏艺科技股份有限公司 | Macromolecular concrete foaming agent and preparation method thereof |
| CN105254330A (en) * | 2015-11-18 | 2016-01-20 | 河南理工大学 | Waste plastic and pulverized fuel ash aerated block and continuous preparation method thereof |
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| CN108203260A (en) * | 2016-12-16 | 2018-06-26 | 天津摩根坤德高新科技发展有限公司 | A kind of foaming insulation board containing nano powder |
| CN108383539A (en) * | 2018-04-11 | 2018-08-10 | 佛山市拓拓网络科技有限公司 | A kind of ceramic foam auxiliary agent |
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2022
- 2022-04-19 CN CN202210408960.6A patent/CN114573368B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2011079686A (en) * | 2009-10-05 | 2011-04-21 | Asahi Kasei Construction Materials Co Ltd | Lightweight foamed concrete and method for producing the same |
| CN102765962A (en) * | 2012-07-30 | 2012-11-07 | 山东宏艺科技股份有限公司 | Macromolecular concrete foaming agent and preparation method thereof |
| CN105254330A (en) * | 2015-11-18 | 2016-01-20 | 河南理工大学 | Waste plastic and pulverized fuel ash aerated block and continuous preparation method thereof |
| CN108203260A (en) * | 2016-12-16 | 2018-06-26 | 天津摩根坤德高新科技发展有限公司 | A kind of foaming insulation board containing nano powder |
| CN107500586A (en) * | 2017-09-07 | 2017-12-22 | 绵阳旺通科技有限公司 | One kind exempts from the Environment-friendlyceramsite ceramsite for building that foams |
| CN108383539A (en) * | 2018-04-11 | 2018-08-10 | 佛山市拓拓网络科技有限公司 | A kind of ceramic foam auxiliary agent |
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