CN111943617A - Autoclaved aerated concrete block manufacturing process - Google Patents
Autoclaved aerated concrete block manufacturing process Download PDFInfo
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- CN111943617A CN111943617A CN202010753891.3A CN202010753891A CN111943617A CN 111943617 A CN111943617 A CN 111943617A CN 202010753891 A CN202010753891 A CN 202010753891A CN 111943617 A CN111943617 A CN 111943617A
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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
- C04B28/10—Lime cements or magnesium oxide cements
- C04B28/12—Hydraulic lime
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/50—Producing shaped prefabricated articles from the material specially adapted for producing articles of expanded material, e.g. cellular concrete
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/14—Apparatus or processes for treating or working the shaped or preshaped articles for dividing shaped articles by cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/02—Conditioning the material prior to shaping
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/022—Carbon
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/023—Fired or melted 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2652—Nitrogen containing polymers, e.g. polyacrylamides, polyacrylonitriles
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/38—Polysaccharides or derivatives thereof
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a manufacturing process of an autoclaved aerated concrete block, which comprises the following steps: preparing raw materials: the cement, quicklime, sand, fly ash, ceramic particles, a water-retaining agent, a water reducing agent, activated carbon and a gas former, wherein the cement comprises the following components in percentage by weight: 15-25% of cement, 15-25% of quicklime, 30-40% of sand, 10-20% of fly ash, 10-20% of ceramic particles, 3-5% of water-retaining agent, 3-5% of water-reducing agent, 3-5% of activated carbon and 3-5% of gas-forming agent; the invention has the beneficial effects that: the addition of the water-retaining agent can reduce the water loss in the concrete block, so that the concrete block is not easy to crack; the use of the activated carbon is beneficial to reducing peculiar smell in the concrete block and can absorb toxic substances in the air; the addition of the water reducing agent improves the strength of the concrete block, is beneficial to reducing the cement consumption and reducing the cost, and the concrete block is more uniform and compact after the water reducing agent is added, so that the durability of the concrete block is improved; the use of the ceramic particles is beneficial to resource recovery and reduces resource consumption.
Description
Technical Field
The invention belongs to the technical field of concrete blocks, and particularly relates to a manufacturing process of an autoclaved aerated concrete block.
Background
The autoclaved aerated concrete block is a porous concrete product prepared by using fly ash, lime, cement, gypsum, slag and the like as main raw materials, adding a proper amount of a gas former, a regulator and a bubble stabilizer, and carrying out the processes of batching, stirring, pouring, standing, cutting, high-pressure steam curing and the like.
The autoclaved aerated concrete block has excellent construction characteristics, can produce various specifications in a factory, can be sawed, planed, drilled and nailed like wood, has higher construction speed due to larger volume, and can be used as a filling material of a common building. Various industrial ceramic waste residues, lime and other raw materials are added in the preparation process of the aerated concrete block, so that the block emits pungent smell.
In order to reduce the peculiar smell of the concrete block, reduce the dry cracking of the concrete block, improve the quality of the concrete block, improve the performance of the concrete block, reduce the cost and improve the construction efficiency, the autoclaved aerated concrete block manufacturing process is provided.
Disclosure of Invention
The invention aims to provide a manufacturing process of an autoclaved aerated concrete block, which reduces the peculiar smell of the concrete block, reduces the dry cracking of the concrete block, improves the quality of the concrete block, improves the performance of the concrete block, reduces the cost and improves the construction efficiency.
In order to achieve the purpose, the invention provides the following technical scheme: an autoclaved aerated concrete block manufacturing process comprises the following steps:
the method comprises the following steps: preparing raw materials: the cement, quicklime, sand, fly ash, ceramic particles, a water-retaining agent, a water reducing agent, activated carbon and a gas former, wherein the cement comprises the following components in percentage by weight: 15-25% of cement, 15-25% of quicklime, 30-40% of sand, 10-20% of fly ash, 10-20% of ceramic particles, 3-5% of water-retaining agent, 3-5% of water-reducing agent, 3-5% of activated carbon and 3-5% of gas-forming agent;
step two: raw material treatment: carrying out ball milling on cement, quick lime, sand, fly ash and ceramic particles to a specified fineness;
step three: and (3) casting molding: conveying the ball-milled raw materials and the rest raw materials in the step one into a pouring vehicle, driving the pouring vehicle into a pouring place, and pouring slurry die by die to enable a blank body to be molded by pouring;
step four: standing and cutting: standing and stacking the cast blank, and cutting after standing;
step five: steam pressure curing: feeding the cut blank together with a bottom die into an autoclave for autoclave curing;
step six: and (3) checking and stacking: and (4) after the materials are discharged from the kettle, inspecting, and classifying and stacking qualified products.
In a preferred embodiment of the present invention, in the first step, the gas generating agent is aluminum powder paste.
In a preferred technical scheme of the present invention, in the first step, the water retaining agent is one of polyacrylamide, sodium polyacrylate, potassium polyacrylate, and starch grafted acrylate.
As a preferred technical scheme of the invention, in the third step, the slurry is poured mould by mould, the pouring temperature is 35-45 ℃, and the pouring height is 500-600 mm.
As a preferable technical scheme of the invention, in the fourth step, the standing and stacking time at normal temperature is 2-6 h.
As a preferred technical solution of the present invention, in the fifth step, before the steam is introduced, vacuum pumping is performed.
Compared with the prior art, the invention has the beneficial effects that:
(1) the addition of the water-retaining agent can reduce the water loss in the concrete block, so that the concrete block is not easy to crack;
(2) the use of the activated carbon is beneficial to reducing peculiar smell in the concrete block and can absorb toxic substances in the air;
(3) the addition of the water reducing agent improves the strength of the concrete block, is beneficial to reducing the cement consumption and reducing the cost, and the concrete block is more uniform and compact after the water reducing agent is added, so that the durability of the concrete block is improved;
(4) the use of the ceramic particles is beneficial to resource recovery and reduces resource consumption.
Drawings
FIG. 1 is a manufacturing process diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, the present invention provides a technical solution: an autoclaved aerated concrete block manufacturing process comprises the following steps:
the method comprises the following steps: preparing raw materials: the cement, quicklime, sand, fly ash, ceramic particles, a water-retaining agent, a water reducing agent, activated carbon and a gas former, wherein the cement comprises the following components in percentage by weight: 15% of cement, 15% of quicklime, 30% of sand, 10% of fly ash, 10% of ceramic particles, 5% of water-retaining agent, 5% of water-reducing agent, 5% of activated carbon and 5% of gas-forming agent; the gas former is aluminum powder paste which is safe and reliable, does not generate dust in use and is nontoxic; the water-retaining agent is one of polyacrylamide, sodium polyacrylate, potassium polyacrylate and starch grafted acrylate, the water-retaining agent is added into the concrete block, so that the concrete block can keep certain humidity, the drying shrinkage value of the concrete block is reduced, and particularly in a dry environment, the water loss in the concrete block can be reduced by adding the water-retaining agent, so that the concrete block is not easy to crack; the use of the activated carbon is beneficial to reducing peculiar smell in the concrete block and can absorb toxic substances in the air; the addition of the water reducing agent improves the strength of the concrete block, is beneficial to reducing the cement consumption and reducing the cost, and the concrete block is more uniform and compact after the water reducing agent is added, so that the durability of the concrete block is improved; the use of the ceramic particles is beneficial to resource recovery and reduces resource consumption;
step two: raw material treatment: carrying out ball milling on cement, quick lime, sand, fly ash and ceramic particles to a specified fineness; the performance of the autoclaved aerated concrete block is improved;
step three: and (3) casting molding: conveying the ball-milled raw materials and the rest raw materials in the step one into a pouring vehicle, driving the pouring vehicle into a pouring place, and pouring slurry die by die to enable a blank body to be molded by pouring; the casting temperature is 35 ℃, and the casting height is 500 mm;
step four: standing and cutting: standing and stacking the cast blank, standing for 2h, and cutting; standing helps to increase the strength of the green body;
step five: steam pressure curing: feeding the cut blank together with a bottom die into an autoclave for autoclave curing; in order to make steam easily penetrate into blank body and strengthen curing condition, before introducing steam, firstly vacuum-pumping is implemented, and vacuum degree is 800X 105Pa, feeding steam and boosting pressure, and finally controlling the steam pressure to be (8 x 10)5)-(10×105) Pa, the corresponding steam temperature is controlled between 170 ℃ and 200 ℃, constant pressure curing needs to be maintained for a certain time to ensure that the hydrothermal reaction is carried out for enough time, the steam pressure is higher, the constant pressure time can be relatively shortened and is 8 multiplied by 105Constant pressure of 12h, 11X 10 at Pa5Constant pressure of 10h, 15X 10 at Pa5Keeping constant pressure for 6 hours under Pa, reducing the pressure after constant pressure maintenance is finished, discharging steam to recover the normal pressure, opening a kettle door, and drawing out the mold filled with the finished product;
step six: and (3) checking and stacking: and (4) after the materials are discharged from the kettle, inspecting, and classifying and stacking qualified products.
Example 2
Referring to fig. 1, the present invention provides a technical solution: an autoclaved aerated concrete block manufacturing process comprises the following steps:
the method comprises the following steps: preparing raw materials: the cement, quicklime, sand, fly ash, ceramic particles, a water-retaining agent, a water reducing agent, activated carbon and a gas former, wherein the cement comprises the following components in percentage by weight: 20% of cement, 15% of quicklime, 33% of sand, 10% of fly ash, 10% of ceramic particles, 3% of water-retaining agent, 3% of water-reducing agent, 3% of activated carbon and 3% of gas-forming agent; the gas former is aluminum powder paste which is safe and reliable, does not generate dust in use and is nontoxic; the water-retaining agent is one of polyacrylamide, sodium polyacrylate, potassium polyacrylate and starch grafted acrylate, the water-retaining agent is added into the concrete block, so that the concrete block can keep certain humidity, the drying shrinkage value of the concrete block is reduced, and particularly in a dry environment, the water loss in the concrete block can be reduced by adding the water-retaining agent, so that the concrete block is not easy to crack; the use of the activated carbon is beneficial to reducing peculiar smell in the concrete block and can absorb toxic substances in the air; the addition of the water reducing agent improves the strength of the concrete block, is beneficial to reducing the cement consumption and reducing the cost, and the concrete block is more uniform and compact after the water reducing agent is added, so that the durability of the concrete block is improved; the use of the ceramic particles is beneficial to resource recovery and reduces resource consumption;
step two: raw material treatment: carrying out ball milling on cement, quick lime, sand, fly ash and ceramic particles to a specified fineness; the performance of the autoclaved aerated concrete block is improved;
step three: and (3) casting molding: conveying the ball-milled raw materials and the rest raw materials in the step one into a pouring vehicle, driving the pouring vehicle into a pouring place, and pouring slurry die by die to enable a blank body to be molded by pouring; the casting temperature is 40 ℃, and the casting height is 550 mm;
step four: standing and cutting: standing and stacking the cast blank, standing for 4h, and cutting; standing helps to increase the strength of the green body;
step five: steam pressure curing: feeding the cut blank together with a bottom die into an autoclave for autoclave curing; to make the steam easily penetrate into the blankCuring conditions, vacuumizing before introducing steam, vacuum degree of 800X 105Pa, feeding steam and boosting pressure, and finally controlling the steam pressure to be (8 x 10)5)-(10×105) Pa, the corresponding steam temperature is controlled between 170 ℃ and 200 ℃, constant pressure curing needs to be maintained for a certain time to ensure that the hydrothermal reaction is carried out for enough time, the steam pressure is higher, the constant pressure time can be relatively shortened and is 8 multiplied by 105Constant pressure of 12h, 11X 10 at Pa5Constant pressure of 10h, 15X 10 at Pa5Keeping constant pressure for 6 hours under Pa, reducing the pressure after constant pressure maintenance is finished, discharging steam to recover the normal pressure, opening a kettle door, and drawing out the mold filled with the finished product;
step six: and (3) checking and stacking: and (4) after the materials are discharged from the kettle, inspecting, and classifying and stacking qualified products.
Example 3
Referring to fig. 1, the present invention provides a technical solution: an autoclaved aerated concrete block manufacturing process comprises the following steps:
the method comprises the following steps: preparing raw materials: the cement, quicklime, sand, fly ash, ceramic particles, a water-retaining agent, a water reducing agent, activated carbon and a gas former, wherein the cement comprises the following components in percentage by weight: 18% of cement, 15% of quicklime, 30% of sand, 10% of fly ash, 13% of ceramic particles, 3% of water-retaining agent, 4% of water-reducing agent, 3% of activated carbon and 4% of gas-forming agent; the gas former is aluminum powder paste which is safe and reliable, does not generate dust in use and is nontoxic; the water-retaining agent is one of polyacrylamide, sodium polyacrylate, potassium polyacrylate and starch grafted acrylate, the water-retaining agent is added into the concrete block, so that the concrete block can keep certain humidity, the drying shrinkage value of the concrete block is reduced, and particularly in a dry environment, the water loss in the concrete block can be reduced by adding the water-retaining agent, so that the concrete block is not easy to crack; the use of the activated carbon is beneficial to reducing peculiar smell in the concrete block and can absorb toxic substances in the air; the addition of the water reducing agent improves the strength of the concrete block, is beneficial to reducing the cement consumption and reducing the cost, and the concrete block is more uniform and compact after the water reducing agent is added, so that the durability of the concrete block is improved; the use of the ceramic particles is beneficial to resource recovery and reduces resource consumption;
step two: raw material treatment: carrying out ball milling on cement, quick lime, sand, fly ash and ceramic particles to a specified fineness; the performance of the autoclaved aerated concrete block is improved;
step three: and (3) casting molding: conveying the ball-milled raw materials and the rest raw materials in the step one into a pouring vehicle, driving the pouring vehicle into a pouring place, and pouring slurry die by die to enable a blank body to be molded by pouring; the casting temperature is 35-45 ℃, and the casting height is 500-600 mm;
step four: standing and cutting: standing and stacking the cast blank, standing for 2-6h, and cutting; standing helps to increase the strength of the green body;
step five: steam pressure curing: feeding the cut blank together with a bottom die into an autoclave for autoclave curing; in order to make steam easily penetrate into blank body and strengthen curing condition, before introducing steam, firstly vacuum-pumping is implemented, and vacuum degree is 800X 105Pa, feeding steam and boosting pressure, and finally controlling the steam pressure to be (8 x 10)5)-(10×105) Pa, the corresponding steam temperature is controlled between 170 ℃ and 200 ℃, constant pressure curing needs to be maintained for a certain time to ensure that the hydrothermal reaction is carried out for enough time, the steam pressure is higher, the constant pressure time can be relatively shortened and is 8 multiplied by 105Constant pressure of 12h, 11X 10 at Pa5Constant pressure of 10h, 15X 10 at Pa5Keeping constant pressure for 6 hours under Pa, reducing the pressure after constant pressure maintenance is finished, discharging steam to recover the normal pressure, opening a kettle door, and drawing out the mold filled with the finished product;
step six: and (3) checking and stacking: and (4) after the materials are discharged from the kettle, inspecting, and classifying and stacking qualified products.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The autoclaved aerated concrete block manufacturing process is characterized by comprising the following steps of: the manufacturing process comprises the following steps:
the method comprises the following steps: preparing raw materials: the cement, quicklime, sand, fly ash, ceramic particles, a water-retaining agent, a water reducing agent, activated carbon and a gas former, wherein the cement comprises the following components in percentage by weight: 15-25% of cement, 15-25% of quicklime, 30-40% of sand, 10-20% of fly ash, 10-20% of ceramic particles, 3-5% of water-retaining agent, 3-5% of water-reducing agent, 3-5% of activated carbon and 3-5% of gas-forming agent;
step two: raw material treatment: carrying out ball milling on cement, quick lime, sand, fly ash and ceramic particles to a specified fineness;
step three: and (3) casting molding: conveying the ball-milled raw materials and the rest raw materials in the step one into a pouring vehicle, driving the pouring vehicle into a pouring place, and pouring slurry die by die to enable a blank body to be molded by pouring;
step four: standing and cutting: standing and stacking the cast blank, and cutting after standing;
step five: steam pressure curing: feeding the cut blank together with a bottom die into an autoclave for autoclave curing;
step six: and (3) checking and stacking: and (4) after the materials are discharged from the kettle, inspecting, and classifying and stacking qualified products.
2. The autoclaved aerated concrete block manufacturing process according to claim 1, characterized in that: in the first step, the gas former is aluminum powder paste.
3. The autoclaved aerated concrete block manufacturing process according to claim 1, characterized in that: in the first step, the water-retaining agent is one of polyacrylamide, sodium polyacrylate, potassium polyacrylate and starch grafted acrylate.
4. The autoclaved aerated concrete block manufacturing process according to claim 1, characterized in that: in the third step, the slurry is poured mould by mould, the pouring temperature is 35-45 ℃, and the pouring height is 500-600 mm.
5. The autoclaved aerated concrete block manufacturing process according to claim 1, characterized in that: in the fourth step, the standing and stacking time at normal temperature is 2-6 h.
6. The autoclaved aerated concrete block manufacturing process according to claim 1, characterized in that: and in the fifth step, vacuumizing is performed before steam is introduced.
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| CN202010753891.3A CN111943617A (en) | 2020-07-30 | 2020-07-30 | Autoclaved aerated concrete block manufacturing process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113045279A (en) * | 2021-02-26 | 2021-06-29 | 海南广胜新型建材有限公司 | Autoclaved sand-lime brick and preparation method thereof |
| CN115140998A (en) * | 2021-03-31 | 2022-10-04 | 云南弘华建筑工程有限公司新型墙体建筑材料厂 | Compression-resistant shockproof aerated concrete block forming production process |
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2020
- 2020-07-30 CN CN202010753891.3A patent/CN111943617A/en active Pending
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| CN106396582A (en) * | 2015-07-27 | 2017-02-15 | 国网智能电网研究院 | Noise-reducing aerated concrete building block and preparation method thereof |
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| CN113045279A (en) * | 2021-02-26 | 2021-06-29 | 海南广胜新型建材有限公司 | Autoclaved sand-lime brick and preparation method thereof |
| CN115140998A (en) * | 2021-03-31 | 2022-10-04 | 云南弘华建筑工程有限公司新型墙体建筑材料厂 | Compression-resistant shockproof aerated concrete block forming production process |
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