CN112456937A - High-performance autoclaved aerated concrete plate and preparation method thereof - Google Patents
High-performance autoclaved aerated concrete plate and preparation method thereof Download PDFInfo
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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
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
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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
- 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
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
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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
- 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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- 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
- C04B2111/52—Sound-insulating materials
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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
- 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
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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
- 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
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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
- 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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Abstract
The invention discloses a high-performance autoclaved aerated concrete plate which is characterized by comprising the following components in parts by weight: 1600 portions of slurry 1580-. The invention also discloses a preparation method of the high-performance autoclaved aerated concrete plate. The high-performance autoclaved aerated concrete plate disclosed by the invention has the advantages of excellent comprehensive performance, light weight, more excellent impermeability, compressive strength, thermal insulation performance and drying shrinkage performance, good frost resistance, crack resistance, fire resistance and sound insulation, and more economic and environment-friendly use.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a high-performance autoclaved aerated concrete plate and a preparation method thereof.
Background
In recent years, with the rapid development of the building industry, the demand of traditional clay brick solid bricks is increasing day by day, the exploitation and production of the bricks have the characteristics of field destruction, soil taking and great farmland destruction, and the production process is laggard, the energy consumption is high, and the pollution is serious. Under the situation, the autoclaved aerated concrete slab is produced at the same time, is the development direction of the current domestic light wallboard materials, and is widely applied to industrial and civil buildings such as concrete, steel structures and the like. It has the advantages of light weight, high strength, high heat insulating performance, good sound insulating performance, convenient construction, lasting fire resistance, etc. The autoclaved aerated concrete slab is adopted to replace the traditional aerated concrete building blocks, the cement slag hollow wall plate and the like, so that the purposes of protecting the environment, saving the energy, improving the surface quality of the wall body, increasing the building attractiveness, improving the indoor environment comfort level and the like can be realized besides greatly reducing the engineering time, improving the engineering installation quality and reducing the building cost.
At present, the autoclaved aerated concrete slabs on the market have more problems in the use process, such as smaller strength, smaller hardness and heavier mass of the autoclaved aerated concrete slabs, and the existing autoclaved aerated concrete slabs are not high in heat preservation performance under the common condition, so that the autoclaved aerated concrete slabs can not be completely applied to various fields, and the application range of the autoclaved aerated concrete slabs is greatly limited. In addition, the existing autoclaved aerated concrete slab has the defects of more or less compressive strength, thermal insulation performance and drying shrinkage performance which are still to be further improved.
The Chinese invention patent with the application number of 201811320906.6 discloses an aerated concrete plate, which comprises the following raw materials in parts by weight: 500 parts of fly ash 450-charge, 90-100 parts of cement, 120 parts of lime 100-charge, 12-17 parts of phosphogypsum, 0.4-0.8 part of aluminum powder, 1-5 parts of gas former and 1-5 parts of foam stabilizer. The invention also discloses a manufacturing process of the aerated concrete plate. The invention can effectively improve the strength and hardness of the aerated concrete plate, and can also effectively reduce the weight of the aerated concrete plate and improve the heat-insulating property, so that the aerated concrete plate can be widely used. However, due to the formulation of the board, the drying shrinkage performance, compressive strength and impermeability of the manufactured board are still to be further improved.
Therefore, the development of the high-performance autoclaved aerated concrete plate with more excellent compressive strength, heat preservation performance and drying shrinkage performance, better comprehensive performance and lighter weight meets the market demand, has wide market value and application prospect, and has very important significance for promoting the development of the field of the autoclaved aerated concrete plate.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a high-performance autoclaved aerated concrete plate which is excellent in comprehensive performance, light in weight, excellent in impermeability, compressive strength, heat preservation performance and drying shrinkage performance, good in frost resistance, crack resistance, fire resistance and sound insulation performance, economical and environment-friendly in use. Meanwhile, the invention also provides a preparation method of the high-performance autoclaved aerated concrete plate, which is simple in process, short in flow, short in production period, high in production efficiency and suitable for continuous large-scale production.
In order to achieve the purpose, the invention adopts the technical scheme that: the high-performance autoclaved aerated concrete plate is characterized by comprising the following components in parts by weight: 1600 portions of slurry 1580-.
Preferably, the high-performance autoclaved aerated concrete plate comprises the following components in parts by weight: 1590 part of slurry, 450 parts of waste slurry, 260 parts of lime, 600 parts of cement, 2.6 parts of aluminum paste and 1.2 parts of additive.
Preferably, the water content of the slurry is 30-40%.
Preferably, the water content of the waste slurry is 25-35%.
Preferably, the slurry comprises the following dry materials in parts by weight: 3-6 parts of water granulated slag micro powder, 1-3 parts of kaolin, 2-4 parts of magnesite powder, 1-2 parts of hyperbranched polyether containing phosphine end groups, 15-25 parts of fly ash, 1-2 parts of montmorillonite and 0.5-1.5 parts of graphene fiber.
Preferably, the preparation method of the hyperbranched polyether containing phosphine end groups is described in Chinese patent application No. 201810383523.7, example 1.
Preferably, the waste slurry comprises the following solid wastes in parts by weight: 1-3 parts of waste gypsum, 5-10 parts of coal slag, 1-3 parts of blast furnace slag and 10-20 parts of regenerated sand powder.
Preferably, the admixture comprises the following components in parts by weight: 1-2 parts of gas former, 1-3 parts of foam stabilizer and 2-5 parts of sodium alginate.
Preferably, the gas former is one of magnesium, aluminum zinc alloy, ferrosilicon, hydrogen peroxide and calcium carbide.
Preferably, the foam stabilizer is one of silicone polyether emulsion, polyacrylamide and polyvinyl alcohol.
Preferably, the aluminum paste is formed by melting aluminum powder at 660-730 ℃ by using bamboo charcoal as a carrier under the condition of nitrogen and staying in gaps of the bamboo charcoal for grinding.
Preferably, the cement is at least one of ordinary portland cement, portland slag cement, portland pozzolanic cement and portland fly ash cement.
The invention also aims to provide a preparation method of the high-performance autoclaved aerated concrete plate, which comprises the following steps: after the components are uniformly mixed according to the parts by weight, firstly pouring half of the mixture into a mould, then putting transverse reinforcing steel bars and vertical reinforcing steel bars, finally pouring the rest half of the mixture into the mould for compaction, curing for 6-8 hours in saturated steam at the temperature of 180 ℃ and 220 ℃ and under the atmospheric pressure of 1.5-3.0, and naturally cooling to room temperature to obtain the high-performance autoclaved aerated concrete plate.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the high-performance autoclaved aerated concrete plate provided by the invention has the advantages of excellent comprehensive performance, light weight, more excellent impermeability, compressive strength, thermal insulation performance and drying shrinkage performance, good frost resistance, crack resistance, fire resistance and sound insulation, and more economic and environment-friendly use. Meanwhile, the invention also provides a preparation method of the high-performance autoclaved aerated concrete plate, which is simple in process, short in flow, short in production period, high in production efficiency and suitable for continuous large-scale production.
Detailed Description
The following detailed description of preferred embodiments of the invention will be made.
The high-performance autoclaved aerated concrete plate is characterized by comprising the following components in parts by weight: 1600 portions of slurry 1580-.
Preferably, the high-performance autoclaved aerated concrete plate comprises the following components in parts by weight: 1590 part of slurry, 450 parts of waste slurry, 260 parts of lime, 600 parts of cement, 2.6 parts of aluminum paste and 1.2 parts of additive.
Preferably, the water content of the slurry is 30-40%.
Preferably, the water content of the waste slurry is 25-35%.
Preferably, the slurry comprises the following dry materials in parts by weight: 3-6 parts of water granulated slag micro powder, 1-3 parts of kaolin, 2-4 parts of magnesite powder, 1-2 parts of hyperbranched polyether containing phosphine end groups, 15-25 parts of fly ash, 1-2 parts of montmorillonite and 0.5-1.5 parts of graphene fiber.
Preferably, the preparation method of the hyperbranched polyether containing phosphine end groups is described in Chinese patent application No. 201810383523.7, example 1.
Preferably, the waste slurry comprises the following solid wastes in parts by weight: 1-3 parts of waste gypsum, 5-10 parts of coal slag, 1-3 parts of blast furnace slag and 10-20 parts of regenerated sand powder.
Preferably, the admixture comprises the following components in parts by weight: 1-2 parts of gas former, 1-3 parts of foam stabilizer and 2-5 parts of sodium alginate.
Preferably, the gas former is one of magnesium, aluminum zinc alloy, ferrosilicon, hydrogen peroxide and calcium carbide.
Preferably, the foam stabilizer is one of silicone polyether emulsion, polyacrylamide and polyvinyl alcohol.
Preferably, the aluminum paste is formed by melting aluminum powder at 660-730 ℃ by using bamboo charcoal as a carrier under the condition of nitrogen and staying in gaps of the bamboo charcoal for grinding.
Preferably, the cement is at least one of ordinary portland cement, portland slag cement, portland pozzolanic cement and portland fly ash cement.
The invention also aims to provide a preparation method of the high-performance autoclaved aerated concrete plate, which comprises the following steps: after the components are uniformly mixed according to the parts by weight, firstly pouring half of the mixture into a mould, then putting transverse reinforcing steel bars and vertical reinforcing steel bars, finally pouring the rest half of the mixture into the mould for compaction, curing for 6-8 hours in saturated steam at the temperature of 180 ℃ and 220 ℃ and under the atmospheric pressure of 1.5-3.0, and naturally cooling to room temperature to obtain the high-performance autoclaved aerated concrete plate.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the high-performance autoclaved aerated concrete plate provided by the invention has the advantages of excellent comprehensive performance, light weight, more excellent impermeability, compressive strength, thermal insulation performance and drying shrinkage performance, good frost resistance, crack resistance, fire resistance and sound insulation, and more economic and environment-friendly use. Meanwhile, the invention also provides a preparation method of the high-performance autoclaved aerated concrete plate, which is simple in process, short in flow, short in production period, high in production efficiency and suitable for continuous large-scale production.
The invention will be further described with reference to specific examples, but the scope of protection of the invention is not limited thereto:
example 1
The embodiment 1 provides a high-performance autoclaved aerated concrete plate which is characterized by comprising the following components in parts by weight: 1580 parts of slurry, 440 parts of waste slurry, 250 parts of lime, 590 parts of cement, 2.5 parts of aluminum paste and 0.5 part of additive.
The water content of the slurry is 30%; the water content of the waste slurry was 25%.
The slurry comprises the following dry materials in parts by weight: 3 parts of water granulated slag micro powder, 1 part of kaolin, 2 parts of magnesite powder, 1 part of phosphine-containing terminal group hyperbranched polyether, 15 parts of fly ash, 1 part of montmorillonite and 0.5 part of graphene fiber.
The waste slurry comprises the following solid wastes in parts by weight: 1 part of waste gypsum, 5 parts of coal cinder, 1 part of blast furnace slag and 10 parts of reclaimed sand powder.
The additive comprises the following components in parts by weight: 1 part of gas former, 1 part of foam stabilizer and 2 parts of sodium alginate.
The gas generating agent is magnesium, aluminum zinc alloy; the foam stabilizer is silicone polyether emulsion.
The aluminum paste is formed by melting aluminum powder at 660 ℃ by using bamboo charcoal as a carrier under the condition of nitrogen, and staying in gaps of the bamboo charcoal for grinding.
The cement is ordinary portland cement.
A preparation method of a high-performance autoclaved aerated concrete plate comprises the following steps: after the components are uniformly mixed according to the parts by weight, firstly, half of the mixture is poured into a mould, then a transverse reinforcing steel bar and a vertical reinforcing steel bar are placed, finally, the rest half of the mixture is poured into the mould to be compacted, the mixture is cured for 6 hours in saturated steam at 180 ℃ and 1.5 atmospheric pressures, and then the mixture is naturally cooled to the room temperature, so that the high-performance autoclaved aerated concrete plate is obtained.
Example 2
Embodiment 2 provides a high-performance autoclaved aerated concrete slab, which has a formula and a preparation method basically the same as those of embodiment 1, and comprises the following components in parts by weight: 1585 parts of slurry, 445 parts of waste slurry, 255 parts of lime, 595 parts of cement, 2.6 parts of aluminum paste and 0.8 part of additive; the slurry comprises the following dry materials in parts by weight: 4 parts of water granulated slag micro powder, 1.5 parts of kaolin, 2.5 parts of magnesite powder, 1.2 parts of phosphine-containing terminal group hyperbranched polyether, 17 parts of fly ash, 1.2 parts of montmorillonite and 0.7 part of graphene fiber; the waste slurry comprises the following solid wastes in parts by weight: 1.5 parts of waste gypsum, 6 parts of coal cinder, 1.5 parts of blast furnace slag and 13 parts of reclaimed sand powder; the additive comprises the following components in parts by weight: 1.2 parts of gas former, 1.5 parts of foam stabilizer and 3 parts of sodium alginate.
Example 3
Embodiment 3 provides a high-performance autoclaved aerated concrete slab, which has a formula and a preparation method basically the same as those of embodiment 1, and comprises the following components in parts by weight: 1590 part of slurry, 450 parts of waste slurry, 260 parts of lime, 600 parts of cement, 2.6 parts of aluminum paste and 1.3 parts of additive; the slurry comprises the following dry materials in parts by weight: 4.5 parts of water granulated slag micro powder, 2 parts of kaolin, 3 parts of magnesite powder, 1.5 parts of phosphine-containing terminal group hyperbranched polyether, 20 parts of fly ash, 1.5 parts of montmorillonite and 1 part of graphene fiber; the waste slurry comprises the following solid wastes in parts by weight: 2 parts of waste gypsum, 7 parts of coal cinder, 2 parts of blast furnace slag and 15 parts of regenerated sand powder; the additive comprises the following components in parts by weight: 1.5 parts of gas former, 2 parts of foam stabilizer and 3.5 parts of sodium alginate.
Example 4
Embodiment 4 provides a high-performance autoclaved aerated concrete slab, which has a formula and a preparation method substantially the same as those of embodiment 1, and comprises the following components in parts by weight: 1595 parts of slurry, 455 parts of waste slurry, 265 parts of lime, 605 parts of cement, 2.7 parts of aluminum paste and 1.5 parts of additive; the slurry comprises the following dry materials in parts by weight: 5.5 parts of water granulated slag micro powder, 2.5 parts of kaolin, 3.5 parts of magnesite powder, 1.9 parts of hyperbranched polyether containing phosphine end groups, 23 parts of fly ash, 1.9 parts of montmorillonite and 1.3 parts of graphene fiber; the waste slurry comprises the following solid wastes in parts by weight: 2.5 parts of waste gypsum, 9 parts of coal cinder, 2.5 parts of blast furnace slag and 18 parts of regenerated sand powder; the additive comprises the following components in parts by weight: 1.8 parts of gas former, 2.5 parts of foam stabilizer and 4.5 parts of sodium alginate.
Example 5
Embodiment 5 provides a high-performance autoclaved aerated concrete slab, which has a formula and a preparation method substantially the same as those of embodiment 1, and comprises the following components in parts by weight: 1600 parts of slurry, 460 parts of waste slurry, 270 parts of lime, 610 parts of cement, 2.7 parts of aluminum paste and 2 parts of additive; the slurry comprises the following dry materials in parts by weight: 6 parts of water granulated slag micro powder, 3 parts of kaolin, 4 parts of magnesite powder, 2 parts of phosphine-containing terminal group hyperbranched polyether, 25 parts of fly ash, 2 parts of montmorillonite and 1.5 parts of graphene fiber; the waste slurry comprises the following solid wastes in parts by weight: 3 parts of waste gypsum, 10 parts of coal cinder, 3 parts of blast furnace slag and 20 parts of reclaimed sand powder; the additive comprises the following components in parts by weight: 2 parts of a gas former, 3 parts of a foam stabilizer and 5 parts of sodium alginate.
Comparative example 1
Comparative example 1 provides a high-performance autoclaved aerated concrete slab, the formulation and preparation method of which are basically the same as those of example 1, except that grain slag micropowder and kaolin are not added.
Comparative example 2
Comparative example 2 provides a high-performance autoclaved aerated concrete plate, the formula and the preparation method of which are basically the same as those in example 1, except that magnesite powder and hyperbranched polyether containing phosphine end groups are not added.
Comparative example 3
Comparative example 3 provides a high-performance autoclaved aerated concrete slab, the formulation and preparation method of which are basically the same as those of example 1, except that montmorillonite and graphene fibers are not added.
Comparative example 4
Comparative example 4 provides a high-performance autoclaved aerated concrete panel, the formulation and preparation method of which are substantially the same as those of example 1, except that no waste gypsum and blast furnace slag are added.
Comparative example 5
Comparative example 5 provides a high performance autoclaved aerated concrete slab, the formulation and preparation method of which are essentially the same as example 1, except that no sodium alginate is added.
TABLE 1
Product performance testing of the above examples and comparative examples; the test results are shown in table 1; the test method is as follows:
(1) and (3) testing the compressive strength: preparing a cube-shaped sample with the specification of 100mm multiplied by 100mm, and placing the sample at the center position of a lower pressing plate of a material testing machine, wherein the pressure direction of the sample is vertical to the gas generating direction of the product; starting the material testing machine, and adjusting the ball seat to make the contact balanced when the upper pressure plate is close to the sample; continuously and uniformly loading at the speed of 2.0 +/-0.5 until the sample is destroyed, and recording the destruction load;
(2) coefficient of thermal conductivity: according to the standard GB/T13475-2008 'determination-calibration and protection hot box method for the steady-state heat transfer property of the building component', the calibration hot box method is used for calculating the heat transfer coefficient of the wall;
(3) dry density: taking a cubic sample of 100mm multiplied by 100mm, calculating the volume of the sample, weighing the mass of the sample, and calculating the dry density of the sample;
(4) drying shrinkage test: refer to GB/T11969-2008 'test method for autoclaved aerated concrete Performance'.
As can be seen from Table 1, the high-performance autoclaved aerated concrete slab disclosed by the embodiment of the invention has better compressive strength and heat insulation performance, smaller shrinkage and lighter weight, which is the result of synergistic effect of the components.
The above-mentioned embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.
Claims (10)
1. The high-performance autoclaved aerated concrete plate is characterized by comprising the following components in parts by weight: 1600 portions of slurry 1580-.
2. The high-performance autoclaved aerated concrete slab as claimed in claim 1, wherein the high-performance autoclaved aerated concrete slab comprises the following components in parts by weight: 1590 part of slurry, 450 parts of waste slurry, 260 parts of lime, 600 parts of cement, 2.6 parts of aluminum paste and 1.2 parts of additive.
3. The high-performance autoclaved aerated concrete plate according to claim 1, wherein the water content of the slurry is 30-40%; the water content of the waste slurry is 25-35%.
4. The high-performance autoclaved aerated concrete slab as claimed in claim 1, wherein the slurry comprises the following dry materials in parts by weight: 3-6 parts of water granulated slag micro powder, 1-3 parts of kaolin, 2-4 parts of magnesite powder, 1-2 parts of hyperbranched polyether containing phosphine end groups, 15-25 parts of fly ash, 1-2 parts of montmorillonite and 0.5-1.5 parts of graphene fiber.
5. The high-performance autoclaved aerated concrete slab as claimed in claim 1, wherein the waste slurry comprises the following solid wastes in parts by weight: 1-3 parts of waste gypsum, 5-10 parts of coal slag, 1-3 parts of blast furnace slag and 10-20 parts of regenerated sand powder.
6. The high-performance autoclaved aerated concrete slab as claimed in claim 1, wherein the admixture comprises the following components in parts by weight: 1-2 parts of gas former, 1-3 parts of foam stabilizer and 2-5 parts of sodium alginate.
7. The high-performance autoclaved aerated concrete panel according to claim 6, wherein said gas former is one of magnesium, aluminum zinc alloy, ferrosilicon, hydrogen peroxide and calcium carbide; the foam stabilizer is one of silicone polyether emulsion, polyacrylamide and polyvinyl alcohol.
8. The high-performance autoclaved aerated concrete plate as claimed in claim 1, wherein the aluminum paste is prepared by melting aluminum powder at 660-730 ℃ under nitrogen condition with bamboo charcoal as a carrier, and grinding the aluminum powder in gaps of the bamboo charcoal.
9. The high-performance autoclaved aerated concrete panel according to claim 1, wherein said cement is at least one of ordinary portland cement, portland slag cement, portland pozzolanic cement, and portland fly ash cement.
10. The high-performance autoclaved aerated concrete slab as claimed in any one of claims 1 to 9, wherein the preparation method of the high-performance autoclaved aerated concrete slab comprises the following steps: after the components are uniformly mixed according to the parts by weight, firstly pouring half of the mixture into a mould, then putting transverse reinforcing steel bars and vertical reinforcing steel bars, finally pouring the rest half of the mixture into the mould for compaction, curing for 6-8 hours in saturated steam at the temperature of 180 ℃ and 220 ℃ and under the atmospheric pressure of 1.5-3.0, and naturally cooling to room temperature to obtain the high-performance autoclaved aerated concrete plate.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115466092A (en) * | 2022-09-24 | 2022-12-13 | 四川滨水上锦绿色建材有限公司 | Preparation method of autoclaved aerated concrete plate and prepared plate |
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| CN108439880A (en) * | 2018-04-26 | 2018-08-24 | 贵州开磷磷石膏综合利用有限公司 | A kind of land plaster autoclave aerated concrete building block/plate and preparation method thereof |
| CN110156418A (en) * | 2018-02-06 | 2019-08-23 | 广西新基建材有限公司 | A kind of steam pressurized mixed mud of utilization urban industry solid waste manufacture is laid bricks and its manufacturing method |
| CN111574172A (en) * | 2020-05-19 | 2020-08-25 | 安徽铭科新型建材有限公司 | Autoclaved aerated concrete slab and manufacturing process thereof |
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2020
- 2020-11-13 CN CN202011275155.8A patent/CN112456937A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100813862B1 (en) * | 2007-02-26 | 2008-03-17 | (주)두원씨앤씨 | Lime solidifier and the river bank repair and the reinforcement method of construction using this |
| CN106396581A (en) * | 2016-08-31 | 2017-02-15 | 广州发展环保建材有限公司 | Method for producing autoclaved aerated concrete high-precision building blocks through circularly utilizing cutting waste materials |
| CN110156418A (en) * | 2018-02-06 | 2019-08-23 | 广西新基建材有限公司 | A kind of steam pressurized mixed mud of utilization urban industry solid waste manufacture is laid bricks and its manufacturing method |
| CN108439880A (en) * | 2018-04-26 | 2018-08-24 | 贵州开磷磷石膏综合利用有限公司 | A kind of land plaster autoclave aerated concrete building block/plate and preparation method thereof |
| CN111574172A (en) * | 2020-05-19 | 2020-08-25 | 安徽铭科新型建材有限公司 | Autoclaved aerated concrete slab and manufacturing process thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115466092A (en) * | 2022-09-24 | 2022-12-13 | 四川滨水上锦绿色建材有限公司 | Preparation method of autoclaved aerated concrete plate and prepared plate |
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