CN110922081A - Treating agent for red mud, Bayer process red mud treatment method, concrete and building material - Google Patents
Treating agent for red mud, Bayer process red mud treatment method, concrete and building material Download PDFInfo
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- CN110922081A CN110922081A CN201911262860.1A CN201911262860A CN110922081A CN 110922081 A CN110922081 A CN 110922081A CN 201911262860 A CN201911262860 A CN 201911262860A CN 110922081 A CN110922081 A CN 110922081A
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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
- 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
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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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
- 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
- C04B18/04—Waste materials; Refuse
- C04B18/0409—Waste from the purification of bauxite, e.g. red mud
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
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- 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
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- Environmental & Geological Engineering (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to the field of environmental protection, and particularly discloses a treating agent for red mud, a Bayer process red mud treatment method, concrete and a building material, wherein the treating agent for red mud comprises the following raw materials: the Bayer process red mud treatment method provided by the embodiment of the invention has the advantages that Bayer process red mud and papermaking black liquor are used as raw materials, the dispersion effect of the papermaking black liquor is utilized, the Bayer process red mud is dispersed into uniform slurry, in the preparation process of the slurry, a proper amount of limestone powder is added to reduce the viscosity of the slurry, the Bayer process red mud is conveyed to participate in the batching of concrete in a liquid phase form through a water pump, the problems of difficult blanking and uneven dispersion in the stirring process of the existing Bayer process red mud are solved, and the Bayer process red mud treatment method has wide market prospect.
Description
Technical Field
The invention relates to the field of environmental protection, and particularly relates to a red mud treatment agent, a Bayer process red mud treatment method, concrete and a building material.
Background
In the three alumina production processes of the sintering method, the Bayer method and the combination method, the Bayer method is dominant at present, and about 95 percent of alumina is produced by the Bayer method, wherein the Bayer red mud is polluting waste slag discharged in the alumina production process by the Bayer method, and the environmental pollution is easily caused if the Bayer red mud is not reasonably treated. In the paper industry, the waste water produced during alkaline pulping applications contains a large amount of lignin, which is known as black liquor due to its blackish brown color. The papermaking black liquor contains a large amount of suspended solids, organic pollutants and toxic substances, and can cause serious pollution when being directly discharged into a water body, thereby causing serious damage to the ecological environment.
For the comprehensive utilization of Bayer process red mud, Bayer process red mud is mostly used as a common mineral raw material at present, for example, the Bayer process red mud can be used for the batching of concrete, but the Bayer process red mud mostly does not meet the requirements of industrial production.
Bayer process red mud rich in Fe (OH)3Gel and Al (OH)3The gel ensures that the red mud has stronger water retention, is not easy to dry, has large dehydration energy consumption, and since the 40 s, dozens of methods are provided for the comprehensive utilization of the Bayer process red mud in many countries, but the vast majority of the countries do not meet the requirements of industrial production, so the comprehensive utilization rate of the Bayer process red mud is the lowest among the three types of red mud, and the Bayer process red mud is hardly effectively utilized.
However, the prior Bayer process red mud has the problems of low fluidity, difficult blanking and difficult uniform dispersion in the stirring process.
Disclosure of Invention
The embodiment of the invention aims to provide a red mud treatment agent, a Bayer process red mud treatment method, concrete and a building material, and aims to solve the problems that the existing Bayer process red mud is difficult to feed and is not uniformly dispersed in the stirring process in the background technology.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
the red mud treating agent comprises the following raw materials in parts by weight: 0.9-1.1 parts of limestone powder, 0.9-1.1 parts of papermaking black liquor and 1.0-3.0 parts of water.
As a further scheme of the invention: the solid content of the papermaking black liquor is 20-30%.
As a still further scheme of the invention: the content of calcium oxide in the limestone powder is not less than 50%, and the specific surface area of the limestone powder is not less than 400m2/kg。
Preferably, the content of calcium oxide in the limestone powder is 50%, and the specific surface area of the limestone powder is 400m2/kg。
Preferably, the water may be any one selected from purified water, mineral water, distilled water, deionized water, and soft water, and is not limited thereto and may be selected as needed.
Preferably, the Bayer process red mud is from middle-alumina Shandong limited company, the water content of the Bayer process red mud is 20-30%, and the content of aluminum oxide in the Bayer process red mud is 20-30%.
As a still further scheme of the invention: the solid content of the papermaking black liquor is 25%.
Preferably, the black papermaking liquor is from Shandong quanlin paper industry, Inc., and has a solid content of 25%.
Another object of the embodiments of the present invention is to provide a bayer process red mud treatment method, which includes the following steps:
1) mixing the treating agent for the red mud with the Bayer process red mud to obtain a mixture;
2) and adding an organic silicon defoaming agent into the mixture, and mixing to obtain slurry after Bayer process red mud treatment.
As a still further scheme of the invention: the mass ratio of the Bayer process red mud to the treating agent for the red mud is 5-7: 3-5.
As a still further scheme of the invention: the addition amount of the organic silicon defoaming agent is 0.03-0.05 per mill of the weight of the mixture, and the organic silicon defoaming agent is an organic silicon defoaming agent of the type YB-820 of Shanghai Bilang environmental protection technology limited company.
Another object of the embodiments of the present invention is to provide a slurry after bayer process red mud treatment, which is obtained by the bayer process red mud treatment method.
As a still further scheme of the invention: the water content of the slurry after the Bayer process red mud treatment is 38-42%.
As a still further scheme of the invention: the plastic viscosity of the slurry after the Bayer process red mud treatment is 34-36 pas.
Another object of the embodiments of the present invention is to provide a concrete, which partially contains the slurry after bayer process red mud treatment.
Another object of an embodiment of the present invention is to provide a method for preparing concrete, including the following steps: weighing the slurry after Bayer process red mud treatment, converting the slurry after Bayer process red mud treatment into dry basis, mixing the dry basis with cement according to the mass ratio of 3:7, adding water and gravel according to the existing concrete formula ratio, mixing, and performing conventional maintenance to obtain the concrete.
It should be noted that, hydrated sodium aluminosilicate with relatively good water solubility in the bayer process red mud reacts with limestone powder to produce hydrated carbonate aluminate, so that the inert limestone powder has certain hydration activity, part of alumina and iron oxide with pozzolanic activity exist in the bayer process red mud, and the high alkalinity of the paper making black liquor also has certain excitation effect on pozzolanic materials, so that the activity index of the slurry is far higher than that of the bayer process red mud and also higher than that of the fly ash. The particle size distribution of the materials is optimized, so that the pore slope of a powder system is reduced, and 30% of solid matters in the papermaking black liquor are alkali lignin and have a certain water reducing effect, so that the fluidity of the papermaking black liquor is high, and the construction performance is good.
Another object of an embodiment of the present invention is to provide a building material, which partially or completely contains the above concrete.
Compared with the prior art, the invention has the beneficial effects that:
the treating agent for the red mud provided by the embodiment of the invention comprises the following raw materials: the embodiment of the invention provides a Bayer process red mud treatment method, wherein Bayer process red mud and papermaking black liquor are used as raw materials, the dispersion effect of the papermaking black liquor is utilized to disperse the Bayer process red mud into uniform slurry, and in the preparation process of the slurry, a proper amount of limestone powder is added to reduce the viscosity of the slurry, so that the Bayer process red mud is conveyed to the ingredients participating in concrete in a liquid phase form through a water pump, the problems of difficult blanking and uneven dispersion in the stirring process of the existing Bayer process red mud are solved, the comprehensive utilization rate of the Bayer process red mud and the papermaking black liquor is improved, the problem of environmental pollution caused by direct discharge is reduced, and the Bayer process red mud treatment method has a wide market prospect.
Detailed Description
The present invention will be described in further detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
Example 1
A Bayer process red mud treatment method comprises the following steps:
1) weighing 5kg of Bayer process red mud, 1kg of limestone powder, 1kg of papermaking black liquor and 1kg of water, and mixing to obtain a mixture, wherein the solid content of the papermaking black liquor is 24%;
2) and adding 300g of organic silicon defoaming agent into the mixture, and mixing to obtain slurry after Bayer process red mud treatment.
The Bayer process red mud is from middle-alumina Shandong limited company, the water content of the Bayer process red mud is 20%, and the content of aluminum oxide is 20%. The papermaking black liquor is from Shandong spring forest paper industry Co., Ltd, and the solid content is 24%. The content of calcium oxide in the limestone powder is 60 percent, and the specific surface area is 500m2In terms of/kg. The organic silicon defoaming agent is an organic silicon defoaming agent of the Shanghai Bilan environmental protection science and technology limited company with the model number YB-820. The water content of the slurry after the Bayer process red mud treatment is 38%.
Example 2
A Bayer process red mud treatment method comprises the following steps:
1) weighing 7kg of Bayer process red mud, 1kg of limestone powder, 1kg of papermaking black liquor and 3kg of water, and mixing to obtain a mixture, wherein the solid content of the papermaking black liquor is 26%;
2) and adding 500g of organic silicon defoaming agent into the mixture, and mixing to obtain slurry after Bayer process red mud treatment.
The Bayer process red mud is from middle-alumina Shandong limited company, the water content of the Bayer process red mud is 30%, and the aluminum oxide content of the Bayer process red mud is 30%. The papermaking black liquor is from Shandong quanlin paper industry Co., Ltd, and has a solid content of 26%. The content of calcium oxide in the limestone powder is not less than 50%, and the specific surface area is not less than 400m2In terms of/kg. The organic silicon defoaming agent is an organic silicon defoaming agent of the Shanghai Bilan environmental protection science and technology limited company with the model number YB-820. The water content of the slurry after the Bayer process red mud treatment is 42%.
Example 3
A Bayer process red mud treatment method comprises the following steps:
weighing 6kg of Bayer process red mud, 1kg of limestone powder, 1kg of papermaking black liquor (solid content is 25%), 2kg of water and 300g of organic silicon defoamer, and uniformly stirring to form stable suspension to obtain slurry after treatment of the Bayer process red mud; wherein the Bayer process red mud is from middle-alumina Shandong limited company, the water content of the Bayer process red mud is 25%, and the mass content of aluminum oxide of the Bayer process red mud is 20%; the papermaking black liquor is from Shandong spring forest paper industry Co., Ltd, and the solid content is 25%; the mass content of calcium oxide in the limestone powder is 50%, and the average specific surface area of the limestone powder is 400m2Per kg; the organic silicon defoaming agent is an organic silicon defoaming agent of the Shanghai Bilan environmental protection science and technology limited company with the model number YB-820.
The water content of the slurry after Bayer process red mud treatment is 40%, the plastic viscosity of the slurry after Bayer process red mud treatment is 35 pas, and the slurry is easy to convey by adopting a pumping mode.
Example 4
A Bayer process red mud treatment method comprises the following steps:
1) weighing 0.9kg of limestone powder, 0.9kg of papermaking black liquor and 1kg of water as treating agents for red mud, adding the weighed 0.9kg of limestone powder, 0.9kg of papermaking black liquor and 1kg of water into 5kg of Bayer process red mud, and mixing to obtain a mixture, wherein the solid content of the papermaking black liquor is 20%;
2) and adding 300g of organic silicon defoaming agent into the mixture, and mixing to obtain slurry after Bayer process red mud treatment.
The Bayer process red mud is from middle-alumina Shandong limited company, the water content of the Bayer process red mud is 20%, and the content of aluminum oxide is 20%. The papermaking black liquor is from Shandong spring forest paper industry Co. The content of calcium oxide in the limestone powder is 60 percent, and the specific surface area is 500m2In terms of/kg. The organic silicon defoaming agent is an organic silicon defoaming agent of the Shanghai Bilan environmental protection science and technology limited company with the model number YB-820.
Example 5
A Bayer process red mud treatment method comprises the following steps:
1) weighing 1.1kg of limestone powder, 1.1kg of papermaking black liquor and 3kg of water as treating agents for red mud, adding the weighed 1.1kg of limestone powder, 1.1kg of papermaking black liquor and 3kg of water into 7kg of Bayer process red mud, and mixing to obtain a mixture, wherein the solid content of the papermaking black liquor is 30%;
2) and adding 500g of organic silicon defoaming agent into the mixture, and mixing to obtain slurry after Bayer process red mud treatment.
The Bayer process red mud is from middle-alumina Shandong limited company, the water content of the Bayer process red mud is 30%, and the content of aluminum oxide is 30%. The papermaking black liquor is from Shandong spring forest paper industry Co. The content of calcium oxide in the limestone powder is 60 percent, and the specific surface area is 500m2In terms of/kg. The organic silicon defoaming agent is an organic silicon defoaming agent of the Shanghai Bilan environmental protection science and technology limited company with the model number YB-820.
Example 6
A Bayer process red mud treatment method comprises the following steps:
1) weighing 1kg of limestone powder, 1kg of papermaking black liquor and 2kg of water as a red mud treatment agent, adding the weighed 1kg of limestone powder, 1kg of papermaking black liquor and 2kg of water into 7kg of Bayer process red mud, and mixing to obtain a mixture, wherein the solid content of the papermaking black liquor is 25%;
2) and adding 400g of organic silicon defoaming agent into the mixture, and mixing to obtain slurry after Bayer process red mud treatment.
The Bayer process red mud is from middle-alumina Shandong limited company, the water content of the Bayer process red mud is 25%, and the content of aluminum oxide is 25%. The papermaking black liquor is from Shandong spring forest paper industry Co. The content of calcium oxide in the limestone powder is 60 percent, and the specific surface area is 500m2In terms of/kg. The organic silicon defoaming agent is an organic silicon defoaming agent of the Shanghai Bilan environmental protection science and technology limited company with the model number YB-820.
Example 7
Converting the slurry obtained in the examples 1-6 into a dry base as an admixture, mixing the dry base with cement according to the mass ratio of 3:7, adding water to test the strength and the fluidity of the admixture, comparing the strength with the strength of pure cement, wherein the ratio is the 28d activity index of the corresponding admixture, the specific method refers to the method in 'fly ash for cement and concrete' of GB/T1596-2005, the 28 of the 28d activity index refers to the curing time of the sample to be tested, and the 28d activity index uses the formula H28＝(R/R0) X 100 is calculated, wherein H28Is 28d activity index in percent (%); r is the compressive strength of the test mortar with 28d and the unit is megapascal; r0Is the compressive strength of the comparative mortar 28d, in MPa. Meanwhile, the fly ash and the bayer process red mud are used as comparative examples to perform 28d activity index tests according to the same method, and specific 28d activity index results are shown in table 1.
Table 128 d table of results of activity index test
| Group of | 28d Activity index (%) |
| Example 1 | Supplementing the detection data of the corresponding embodiment |
| Example 2 | |
| Example 3 | 79 |
| Example 4 | |
| Example 5 | |
| Example 6 | |
| Fly ash | 70 |
| Bayer process red mud | 51 |
As can be seen from table 1, hydrated sodium aluminosilicate with relatively good water solubility in bayer process red mud reacts with limestone powder to produce hydrated aluminate, so that inert limestone powder has a certain hydration activity, part of alumina and iron oxide with pozzolanic activity exist in bayer process red mud, and the high alkalinity of the papermaking black liquor also has a certain excitation effect on the pozzolanic material, so that the activity index of the slurry obtained in example 3 is far higher than that of bayer process red mud and also higher than that of fly ash.
Example 8
Fluidity characterization was performed on the slurries obtained in examples 1 to 6, and the fluidity characterization was performed according to the method in GB/T2419, while the fluidity characterization was performed according to the same method using fly ash and bayer process red mud as comparative examples, and the specific fluidity characterization results are shown in table 2.
Table 2 fluidity characterization results table
| Group of | Fluidity ratio (%) |
| Example 1 | Supplementing the detection data of the corresponding embodiment |
| Example 2 | |
| Example 3 | 110 |
| Example 4 | |
| Example 5 | |
| Example 6 | |
| Fly ash | 101 |
| Bayer process red mud | 98 |
As can be seen from Table 2, the particle size distribution of the materials is optimized to reduce the pore slope of the powder system, and the papermaking black liquor has a certain water reducing effect, so that the fluidity of the papermaking black liquor is higher, the fluidity characterizes the workability of the materials, and the larger the fluidity ratio is, the better the workability is.
The Bayer process red mud treatment method has the beneficial effects that the Bayer process red mud and papermaking black liquor are used as raw materials, the Bayer process red mud is dispersed into uniform slurry by using the dispersion effect of the papermaking black liquor, and the Bayer process red mud is conveyed to participate in the batching of concrete in a liquid phase form by a water pump by adding a proper amount of limestone powder in the preparation process of the slurry, so that the problems of difficult blanking and uneven dispersion of the Bayer process red mud are solved, the energy consumption required by drying of the red mud and the black liquor is saved, and the Bayer process red mud treatment method has wide market prospect.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.
Claims (10)
1. The treating agent for the red mud is characterized by comprising the following raw materials in parts by weight: 0.9-1.1 parts of limestone powder, 0.9-1.1 parts of papermaking black liquor and 1.0-3.0 parts of water.
2. The red mud treatment agent according to claim 1, wherein the papermaking black liquor has a solid content of 20-30%.
3. The red mud treatment agent according to claim 1, wherein the limestone powder contains not less than 50% of calcium oxide, and has a specific surface area of not less than 400m2/kg。
4. A bayer process red mud treatment method, characterized in that the treatment agent for red mud according to claim 1, 2 or 3 is used, and specifically comprises the following steps:
1) mixing the treating agent for the red mud with the Bayer process red mud to obtain a mixture;
2) and adding an organic silicon defoaming agent into the mixture, and mixing to obtain slurry after Bayer process red mud treatment.
5. The Bayer process red mud treatment method according to claim 4, wherein the mass ratio of the Bayer process red mud to the treatment agent for red mud is 5-7: 3-5.
6. The Bayer process red mud treatment method according to claim 5, wherein the addition amount of the organic silicon defoamer is 0.03-0.05 per mill of the weight of the mixture.
7. The Bayer process red mud treatment method according to claim 5, wherein the water content of the Bayer process red mud is 20-30%, and the content of aluminum oxide in the Bayer process red mud is 20-30%.
8. A bayer process red mud treated slurry obtained by treatment with the bayer process red mud treatment process according to any one of claims 4 to 7.
9. A concrete comprising, in part, the bayer process red mud treated slurry of claim 8.
10. A construction material comprising, in part or in whole, the concrete of claim 9.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113754331A (en) * | 2021-10-08 | 2021-12-07 | 山东高速工程检测有限公司 | Red mud-based cementing material and preparation method and application thereof |
| CN116102314A (en) * | 2023-01-31 | 2023-05-12 | 青岛理工大学 | Concrete with red mud and limestone powder as auxiliary cementing materials and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3989513A (en) * | 1972-06-06 | 1976-11-02 | Magyar Aluminiumipari Troszt | Method for the treatment of red mud |
| CN1792954A (en) * | 2005-11-09 | 2006-06-28 | 山东铝业股份有限公司 | Road surface based material by sintering red mud and construction method thereof |
| CN103613303A (en) * | 2013-11-21 | 2014-03-05 | 中建商品混凝土有限公司 | Modified limestone powder high-performance mineral admixture and preparation method thereof |
| CN105198324A (en) * | 2015-10-28 | 2015-12-30 | 常州工程职业技术学院 | Self-compacting concrete containing bayer-process red mud and preparation method thereof |
| CN106220119A (en) * | 2016-08-16 | 2016-12-14 | 明光市凯旋新型建材厂 | A kind of production technology of red-mud coal ash baking-free brick |
| CN110117168A (en) * | 2019-06-05 | 2019-08-13 | 湖南双晟科技信息咨询有限公司 | A kind of injecting paste material and its application method |
-
2019
- 2019-12-10 CN CN201911262860.1A patent/CN110922081B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3989513A (en) * | 1972-06-06 | 1976-11-02 | Magyar Aluminiumipari Troszt | Method for the treatment of red mud |
| CN1792954A (en) * | 2005-11-09 | 2006-06-28 | 山东铝业股份有限公司 | Road surface based material by sintering red mud and construction method thereof |
| CN103613303A (en) * | 2013-11-21 | 2014-03-05 | 中建商品混凝土有限公司 | Modified limestone powder high-performance mineral admixture and preparation method thereof |
| CN105198324A (en) * | 2015-10-28 | 2015-12-30 | 常州工程职业技术学院 | Self-compacting concrete containing bayer-process red mud and preparation method thereof |
| CN106220119A (en) * | 2016-08-16 | 2016-12-14 | 明光市凯旋新型建材厂 | A kind of production technology of red-mud coal ash baking-free brick |
| CN110117168A (en) * | 2019-06-05 | 2019-08-13 | 湖南双晟科技信息咨询有限公司 | A kind of injecting paste material and its application method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113754331A (en) * | 2021-10-08 | 2021-12-07 | 山东高速工程检测有限公司 | Red mud-based cementing material and preparation method and application thereof |
| CN116102314A (en) * | 2023-01-31 | 2023-05-12 | 青岛理工大学 | Concrete with red mud and limestone powder as auxiliary cementing materials and preparation method thereof |
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