CN113087479A - Novel solid waste environment-friendly autoclaved aerated concrete and preparation method thereof - Google Patents
Novel solid waste environment-friendly autoclaved aerated concrete and preparation method thereof Download PDFInfo
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- CN113087479A CN113087479A CN202010044085.9A CN202010044085A CN113087479A CN 113087479 A CN113087479 A CN 113087479A CN 202010044085 A CN202010044085 A CN 202010044085A CN 113087479 A CN113087479 A CN 113087479A
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- 239000004567 concrete Substances 0.000 title claims abstract description 46
- 239000002910 solid waste Substances 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000002699 waste material Substances 0.000 claims abstract description 33
- 239000004568 cement Substances 0.000 claims abstract description 30
- 239000010881 fly ash Substances 0.000 claims abstract description 29
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000292 calcium oxide Substances 0.000 claims abstract description 22
- 235000012255 calcium oxide Nutrition 0.000 claims abstract description 22
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 22
- 239000010440 gypsum Substances 0.000 claims abstract description 22
- 229910021487 silica fume Inorganic materials 0.000 claims abstract description 22
- 239000006260 foam Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000003381 stabilizer Substances 0.000 claims abstract description 19
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 16
- 230000007613 environmental effect Effects 0.000 claims abstract description 3
- 239000002002 slurry Substances 0.000 claims description 21
- 238000003756 stirring Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000005303 weighing Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 4
- 239000005997 Calcium carbide Substances 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000011268 mixed slurry Substances 0.000 claims description 3
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract description 8
- 235000011941 Tilia x europaea Nutrition 0.000 abstract description 8
- 239000004571 lime Substances 0.000 abstract description 8
- 239000002994 raw material Substances 0.000 abstract description 5
- 239000004615 ingredient Substances 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000010883 coal ash Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- 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
- C04B28/14—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 calcium sulfate cements
- C04B28/142—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 calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/144—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 calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being a flue gas desulfurization product
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses novel solid waste environment-friendly autoclaved aerated concrete which mainly comprises the following components in parts by mass: 78-86 parts of fly ash, 5-10 parts of waste aerated concrete material, 3-5 parts of carbide mud, 1-3 parts of silica fume, 3-5 parts of desulfurized gypsum, 2-3 parts of cement, 7-11 parts of quicklime, 0.01-0.03 part of foam stabilizer and 0.07-0.09 part of aluminum paste. The consumption of lime and cement is only 7 parts of the ingredients, and the sum of the proportioning of the fly ash and the carbide mud is more than 82 parts of the ingredients, so the raw materials of the invention use waste fly ash, carbide mud and waste aerated concrete, the consumption of the cement and the quicklime is reduced to the maximum extent, namely, the consumption of the lime and the cement is reduced, the raw materials are saved, the waste materials such as the fly ash and the carbide mud can be recycled, the environmental pollution is greatly reduced, and the environmental protection pressure is reduced.
Description
Technical Field
The invention relates to novel solid waste environment-friendly autoclaved aerated concrete and a preparation method thereof, belonging to the technical field of solid waste environment-friendly novel green building materials.
Background
In recent years, with the rapid development of the construction industry, the energy consumption of the construction is increasing correspondingly. Among them, the consumables are lime and cement, which are serious. The production of lime and cement is a process with high energy consumption and high carbon emission, and the cost is higher, and the exploitation of a large amount of river sand not only destroys the ecological environment, but also seriously affects the safety of public facilities. In other industries, fly ash and carbide mud have large discharge capacity and are waste materials, and threaten air, environment and ecological systems. Therefore, there is a need for improvement of the prior art to overcome the above technical problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides novel solid waste environment-friendly autoclaved aerated concrete which can reduce the using amount of lime and cement, greatly mix fly ash and carbide mud wastes, and has performance indexes such as strength and the like reaching the standard, and the concrete is realized by the following technical scheme:
the invention relates to a novel solid waste environment-friendly autoclaved aerated concrete which mainly comprises the following components in parts by weight: 78-86 parts of fly ash, 5-10 parts of waste aerated concrete material, 3-5 parts of carbide mud, 1-3 parts of silica fume, 3-5 parts of desulfurized gypsum, 2-3 parts of cement, 7-11 parts of quicklime, 0.01-0.03 part of foam stabilizer and 0.07-0.09 part of aluminum paste.
According to the preferential scheme, 79 parts of pulverized fuel ash, 3 parts of waste aerated concrete material, 3.5 parts of carbide mud, 1 part of silica fume, 3.5 parts of desulfurized gypsum, 3 parts of cement, 7 parts of quicklime, 0.02 part of foam stabilizer and 0.08 part of aluminum paste.
According to the priority scheme, 77 parts of fly ash, 5 parts of waste aerated concrete material, 3.5 parts of carbide mud, 1 part of silica fume, 3.5 parts of desulfurized gypsum, 3 parts of cement, 7 parts of quicklime, 0.02 part of foam stabilizer and 0.08 part of aluminum paste.
According to the preferential scheme, 80 parts of fly ash, 3 parts of waste aerated concrete material, 3 parts of carbide mud, 1 part of silica fume, 3 parts of desulfurized gypsum, 3 parts of cement, 7 parts of quicklime, 0.02 part of foam stabilizer and 0.08 part of aluminum paste.
According to the preferential scheme, 78 parts of fly ash, 5 parts of waste aerated concrete material, 3 parts of carbide mud, 1 part of silica fume, 3 parts of desulfurized gypsum, 3 parts of cement, 7 parts of quicklime, 0.02 part of foam stabilizer and 0.08 part of aluminum paste.
A novel solid waste environment-friendly autoclaved aerated concrete method comprises the following steps:
s1: weighing fly ash, waste aerated concrete material and silica fume according to a ratio, adding into water, controlling the water content to be 25-30 parts, and preparing into slurry A for later use;
s2: weighing the calcium carbide mud and the desulfurized gypsum according to the proportion, and controlling the water content to be 45-50 parts to prepare slurry B for later use;
s3: weighing the aluminum powder paste according to the proportion, and uniformly mixing the aluminum powder paste with water to prepare mixed slurry C for later use;
s4: adding the slurry A and B prepared in S1 and S2 into a stirrer, mixing and stirring for 60S to be uniform, then weighing cement, quicklime and a foam stabilizer according to the proportion, adding the mixture into the stirrer, then fully mixing and stirring for 60S, and adding steam to increase the temperature of the slurry to 40-46 ℃ in the stirring process;
s5: adding the slurry C after S4, and stirring for 40S to obtain the novel solid waste environment-friendly autoclaved aerated concrete slurry D;
s5: pouring the slurry D prepared in the step S4 into a mold, and placing the mold into a hot chamber for standing until a blank body is formed;
s6: and (5) cutting the blank prepared in the step S5, and performing autoclaved curing to obtain a finished product.
The invention has the beneficial effects that: the consumption of lime and cement is only 7 parts of the ingredients, and the sum of the proportioning of the fly ash and the carbide mud is more than 82 parts of the ingredients, so the raw materials of the invention use waste fly ash, carbide mud and waste aerated concrete, the consumption of the cement and the quicklime is reduced to the maximum extent, namely, the consumption of the lime and the cement is reduced, the raw materials are saved, the waste materials such as the fly ash and the carbide mud can be recycled, the environmental pollution is greatly reduced, and the environmental protection pressure is reduced. Other advantageous effects of the present invention will be further described with reference to the following specific examples.
Detailed Description
The invention relates to a novel solid waste environment-friendly autoclaved aerated concrete which mainly comprises the following components in parts by weight: 78-86 parts of fly ash, 5-10 parts of waste aerated concrete material, 3-5 parts of carbide mud, 1-3 parts of silica fume, 3-5 parts of desulfurized gypsum, 2-3 parts of cement, 7-11 parts of quicklime, 0.01-0.03 part of foam stabilizer and 0.07-0.09 part of aluminum paste.
The fly ash, the waste aerated concrete material, the carbide mud, the silica fume and the desulfurized gypsum are mixed into a large amount of industrial or building solid waste recycled materials, the content of the fly ash, the waste aerated concrete material, the carbide mud, the silica fume and the desulfurized gypsum is more than 90 parts, and the fly ash, the waste aerated concrete material, the carbide mud, the silica fume and the desulfurized gypsum are mixed together to play a synergistic role, so that the performance of the prepared novel solid waste environment-friendly autoclaved aerated concrete meets the national standard. Specifically, the present invention provides the following specific examples:
the first embodiment is as follows: 79 parts of fly ash, 3 parts of waste aerated concrete, 3.5 parts of carbide mud, 1 part of silica fume, 3.5 parts of desulfurized gypsum, 3 parts of cement, 7 parts of quicklime, 0.02 part of foam stabilizer and 0.08 part of aluminum paste.
Example two: 77 parts of fly ash, 5 parts of waste aerated concrete material, 3.5 parts of carbide mud, 1 part of silica fume, 3.5 parts of desulfurized gypsum, 3 parts of cement, 7 parts of quicklime, 0.02 part of foam stabilizer and 0.08 part of aluminum paste.
Example three: 80 parts of fly ash, 3 parts of waste aerated concrete material, 3 parts of carbide mud, 1 part of silica fume, 3 parts of desulfurized gypsum, 3 parts of cement, 7 parts of quicklime, 0.02 part of foam stabilizer and 0.08 part of aluminum paste.
Example four: 78 parts of fly ash, 5 parts of waste aerated concrete, 3 parts of carbide mud, 1 part of silica fume, 3 parts of desulfurized gypsum, 3 parts of cement, 7 parts of quicklime, 0.02 part of foam stabilizer and 0.08 part of aluminum paste.
TABLE 1 Property parameters of novel solid waste environment-friendly autoclaved aerated concrete
As can be seen from the table 1, the novel solid waste environment-friendly autoclaved aerated concrete with high content of carbide mud, coal ash and low cement lime adopts waste coal ash, carbide mud and waste aerated concrete as raw materials, so that the consumption of cement and quicklime is reduced to the maximum extent, the environmental pollution is greatly reduced, the environment-friendly pressure is reduced, the properties of the product in all aspects such as strength and volume weight can meet the national standard requirements, and the later strength is stable and does not shrink.
The above examples one to four can be prepared according to the following steps:
s1: weighing fly ash, waste aerated concrete material and silica fume according to a ratio, adding into water, controlling the water content to be 25-30 parts, and preparing into slurry A for later use;
s2: weighing the calcium carbide mud and the desulfurized gypsum according to the proportion, and controlling the water content to be 45-50 parts to prepare slurry B for later use;
s3: weighing the aluminum powder paste according to the proportion, and uniformly mixing the aluminum powder paste with water to prepare mixed slurry C for later use;
s4: adding the slurry A and B prepared in S1 and S2 into a stirrer, mixing and stirring for 60S to be uniform, then weighing cement, quicklime and a foam stabilizer according to the proportion, adding the mixture into the stirrer, then fully mixing and stirring for 60S, and adding steam to increase the temperature of the slurry to 40-46 ℃ in the stirring process;
s5: adding the slurry C after S4, and stirring for 40S to obtain the novel solid waste environment-friendly autoclaved aerated concrete slurry D;
s5: pouring the slurry D prepared in the step S4 into a mold, and placing the mold into a hot chamber for standing until a blank body is formed;
s6: and (5) cutting the blank prepared in the step S5, and performing autoclaved curing to obtain a finished product.
The preparation method of the invention has high utilization rate of waste materials, simple manufacturing process and excellent product performance.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (6)
1. The utility model provides a novel admittedly useless environmental protection evaporates presses aerated concrete which characterized in that: the adhesive is mainly prepared from the following components in parts by mass: 78-86 parts of fly ash, 5-10 parts of waste aerated concrete material, 3-5 parts of carbide mud, 1-3 parts of silica fume, 3-5 parts of desulfurized gypsum, 2-3 parts of cement, 7-11 parts of quicklime, 0.01-0.03 part of foam stabilizer and 0.07-0.09 part of aluminum paste.
2. The novel solid waste environment-friendly autoclaved aerated concrete according to claim 1, which is characterized in that: 79 parts of fly ash, 3 parts of waste aerated concrete, 3.5 parts of carbide mud, 1 part of silica fume, 3.5 parts of desulfurized gypsum, 3 parts of cement, 7 parts of quicklime, 0.02 part of foam stabilizer and 0.08 part of aluminum paste.
3. The novel solid waste environment-friendly autoclaved aerated concrete according to claim 1, which is characterized in that: 77 parts of fly ash, 5 parts of waste aerated concrete material, 3.5 parts of carbide mud, 1 part of silica fume, 3.5 parts of desulfurized gypsum, 3 parts of cement, 7 parts of quicklime, 0.02 part of foam stabilizer and 0.08 part of aluminum paste.
4. The novel solid waste environment-friendly autoclaved aerated concrete according to claim 1, which is characterized in that: 80 parts of fly ash, 3 parts of waste aerated concrete material, 3 parts of carbide mud, 1 part of silica fume, 3 parts of desulfurized gypsum, 3 parts of cement, 7 parts of quicklime, 0.02 part of foam stabilizer and 0.08 part of aluminum paste.
5. The novel solid waste environment-friendly autoclaved aerated concrete according to claim 1, which is characterized in that: 78 parts of fly ash, 5 parts of waste aerated concrete, 3 parts of carbide mud, 1 part of silica fume, 3 parts of desulfurized gypsum, 3 parts of cement, 7 parts of quicklime, 0.02 part of foam stabilizer and 0.08 part of aluminum paste.
6. A method for preparing the novel solid waste environment-friendly autoclaved aerated concrete as claimed in any one of claims 1 to 5, which is characterized by comprising the following steps: the method comprises the following steps:
s1: weighing fly ash, waste aerated concrete material and silica fume according to a ratio, adding into water, controlling the water content to be 25-30 parts, and preparing into slurry A for later use;
s2: weighing the calcium carbide mud and the desulfurized gypsum according to the proportion, and controlling the water content to be 45-50 parts to prepare slurry B for later use;
s3: weighing the aluminum powder paste according to the proportion, and uniformly mixing the aluminum powder paste with water to prepare mixed slurry C for later use;
s4: adding the slurry A and B prepared in S1 and S2 into a stirrer, mixing and stirring for 60S to be uniform, then weighing cement, quicklime and a foam stabilizer according to the proportion, adding the mixture into the stirrer, then fully mixing and stirring for 60S, and adding steam to increase the temperature of the slurry to 40-46 ℃ in the stirring process;
s5: adding the slurry C after S4, and stirring for 40S to obtain the novel solid waste environment-friendly autoclaved aerated concrete slurry D;
s5: pouring the slurry D prepared in the step S4 into a mold, and placing the mold into a hot chamber for standing until a blank body is formed;
s6: and (5) cutting the blank prepared in the step S5, and performing autoclaved curing to obtain a finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010044085.9A CN113087479A (en) | 2020-01-15 | 2020-01-15 | Novel solid waste environment-friendly autoclaved aerated concrete and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010044085.9A CN113087479A (en) | 2020-01-15 | 2020-01-15 | Novel solid waste environment-friendly autoclaved aerated concrete and preparation method thereof |
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| CN113087479A true CN113087479A (en) | 2021-07-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114368956A (en) * | 2022-01-27 | 2022-04-19 | 单成敏 | Self-heat-preservation ALC aerated concrete wallboard and preparation method thereof |
| CN115959879A (en) * | 2022-12-28 | 2023-04-14 | 贵州大学 | Aerated concrete and preparation method thereof |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114368956A (en) * | 2022-01-27 | 2022-04-19 | 单成敏 | Self-heat-preservation ALC aerated concrete wallboard and preparation method thereof |
| CN115959879A (en) * | 2022-12-28 | 2023-04-14 | 贵州大学 | Aerated concrete and preparation method thereof |
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Application publication date: 20210709 |