CN108706944A - A kind of phosphogypsum light plank and preparation method thereof prepared using barium slag - Google Patents
A kind of phosphogypsum light plank and preparation method thereof prepared using barium slag Download PDFInfo
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- CN108706944A CN108706944A CN201810745954.3A CN201810745954A CN108706944A CN 108706944 A CN108706944 A CN 108706944A CN 201810745954 A CN201810745954 A CN 201810745954A CN 108706944 A CN108706944 A CN 108706944A
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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
- C04B28/14—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
- C04B28/145—Calcium sulfate hemi-hydrate with a specific crystal form
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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
- 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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- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The phosphogypsum light plank and preparation method thereof that the present invention relates to a kind of to be prepared using barium slag, the phosphogypsum light plank raw material components and its mass parts are as follows：10-20 parts of barium slag, 4-10 parts of phosphogypsum dihydrate, 60-80 parts of phosphorus semi-hydrated gypsum, 5-15 parts of metakaolin, 1-3 parts of carbide slag, 0.5-1.2 parts of light-weight aggregate, 0-0.1 parts of retarder, 0.1-0.3 parts of water-reducing agent, 0-0.1 parts of water-retaining agent.The phosphogypsum light board lightweight provided by the invention prepared using barium slag is kept the temperature, and unit weight is in 600-1000Kg/m3Adjustable in range, thermal coefficient is below 0.15W/ (mK), and without apparent delamination splitting, the micro-expansibility of gypsum aquation can effectively overcome the problems, such as that conventional cementitious panels shrinkage cracking, prepared light weight board properties are satisfied by JGT169-2016《Light lath for building partition wall generic specifications》Standard.
Description
Technical field
The invention belongs to building material technical field, it is related to a kind of phosphogypsum light plank prepared using barium slag and its system
Preparation Method.
Background technology
Ardealite is most important industry byproduct in China's phosphorus chemical industry, often produces 1 ton of P2O5It needs to discharge
4.5-5 tons of ardealites.Due to containing the objectionable impurities such as phosphorus, fluorine, organic matter in ardealite, there is no at present effective pre-
Treatment technology can completely eliminate the influence of impurity, cause the Related product added value prepared using ardealite as raw material low, enterprise
It is not high using the enthusiasm of ardealite, mainly take outdoor stockpiling mode to handle.According to statistics, the accumulative stockpiling of China's ardealite at present
Amount is more than 300,000,000 tons.The volume of cargo in storage of ardealite is growing day by day, does not only take up a large amount of soils, waste of resource, and objectionable impurities is with rain
Water logging goes out, and generates acid waste water, causes the serious pollution and ecological hazard of soil, water system, air.
The industrial residue that barium slag generates when being barite production barium carbonate often produces one ton of barium salt and will produce 0.8-1 tons of barium
Slag.Contain acid-soluble barium, water-soluble barium and some heavy metals, rare earth element etc. in barium slag.Currently, the processing mode of barium slag is still
Based on stockpiling, a large amount of land resource is not only taken up, and the leaching of harmful ion can also cause the serious pollution of soil environment.
Currently, there is no the extensive method using ardealite, barium slag the like waste.Chinese patent CN104058786B is disclosed
A kind of high-performance aerated concrete construction material and preparation method thereof using barium slag, takes full advantage of barium slag, is steamed in high temperature
Under the conditions of pressure, Ba2+With SO4 2-Participate in the BaSO that chemical reaction generates indissoluble4, to Ba2+Cured, to reduce environment dirt
Dye；Chinese patent CN102531500A discloses a kind of barium slag and fly ash building block and its production method, reduces barium slag to environment
Pollution, waste is substituted into clay brick, realizes waste utilization.But above-mentioned technical products have a single function, added value is low, it can not
Realize that large-scale promotion application, the present invention prepare phosphogypsum light plank, the useless rate height of product profit, light thermal-insulation, appearance using barium slag
Weight is adjustable, can be used as prefabricated component, meet at this stage for the market demand of assembled architecture, added value of product
Height, market prospects are good, can solve barium slag, the significant problem of environment is largely stored up, polluted to two big solid waste of ardealite, realization
Its cooperative disposal and recycling, while the cycle sustainable development for multiple industries such as push phosphorous chemical industry and salt chemical engineering.
Invention content
The technical problem to be solved by the present invention is to aiming at the above shortcomings existing in the prior art, provide it is a kind of utilize barium
Phosphogypsum light plank and preparation method thereof prepared by slag, realizes the cooperative disposal and recycling of barium slag and ardealite,
The useless rate height of prepared product profit, light thermal-insulation, unit weight is adjustable, without apparent delamination splitting, energy conservation and environmental protection.
In order to solve the above technical problems, technical solution provided by the invention is：
A kind of phosphogypsum light plank prepared using barium slag, phosphogypsum light plank raw material components and its mass parts are provided
It is as follows：10-20 parts of barium slag, 4-10 parts of phosphogypsum dihydrate, 60-80 parts of phosphorus semi-hydrated gypsum, 5-15 parts of metakaolin, carbide slag 1-3
Part, 0.5-1.2 parts of light-weight aggregate, 0-0.1 parts of retarder, 0.1-0.3 parts of water-reducing agent, 0-0.1 parts of water-retaining agent；
The phosphorus semi-hydrated gypsum is phosphorus high strength gypsum and phosphorus building gypsum according to mass ratio 4：1 mixture being mixed to get,
Wherein phosphorus high strength gypsum 2h flexural strengths are more than 6MPa, and phosphorus building gypsum 2h flexural strengths are more than 3MPa.
By said program, the barium slag is industrial residue (the main component BaSO generated during producing barium salt4、
BaCO3、BaSiO3, BaS and some heavy metals, rare earth element) sieving obtains after drying is levigate, and is tailed over through 80 μm of square hole screens
No more than 10%.
By said program, attached water (H in the phosphogypsum dihydrate2O) mass fraction is less than 15%, the matter of calcium sulphate dihydrate
It measures score and is more than 85%, water-soluble phosphorus pentoxide mass fraction is less than 0.8%, pH 1.5-3.
By said program, SiO in the metakaolin2Content is 50-55%, Al2O3Content is 42-47%, and 45 μm tail over
Object is less than 0.005%.
By said program, the carbide slag is that the waste residue drying generated when preparing acetylene levigate is sieved through 80 μm of square hole screens
It arrives, and tails over no more than 10%.
By said program, the light-weight aggregate is expanded polystyrene (EPS) (EPS) particle, grain diameter 1-3mm, bulk density 5-
12Kg/m3。
By said program, the retarder is gypsum special retarder.
By said program, the water-reducing agent is melamine water reducing agent, and water-reducing rate is more than 15%.
By said program, the water-retaining agent is hydroxypropyl methyl cellulose ether, viscosity 10000-400000mPas.
The invention also includes the preparation methods of the above-mentioned phosphogypsum light plank prepared using barium slag, are as follows：
1) raw material is weighed in proportion, it is spare；
2) barium slag and phosphogypsum dihydrate are pressed into solid-to-liquid ratio 1：1.6-3 adds water to mix and stir, and stirs 1.5-2.5h at 45-55 DEG C
Obtain modified barium slurry material；
3) as needed, by modified barium slurry material obtained by step 2) and phosphorus semi-hydrated gypsum, metakaolin, carbide slag, light collection
Material, retarder, water-reducing agent and water-retaining agent are added in blender, stir 3-4min, and subsequent casting obtains phosphogypsum light plate
Material.
The present invention utilizes water-soluble in barium slag and acid soluble barium ions under the action of acid medium phosphogypsum dihydrate, with
Sulfate ion reaction generates the barium sulfate of slightly solubility, and (semi-hydrated gypsum aquation generates two using the gelling of phosphorus semi-hydrated gypsum
Water gypsum, dihydrate gypsum crystal is cemented together between each other, forms network structure, this hydration process simultaneously can also be it
His material is cemented together, to play solidification) harmful ion in barium slag, ardealite is cured, realize barium
The cooperative disposal and recycling of slag and ardealite；Aquation silicic acid is generated using the potential hydration activity reaction of metakaolin
The hydrated products such as calcium, drated calcium aluminate, optimization hardening bulk microstructure improve product comprehensive performance, these water resistance hydrated products
Can also gypsum crystallization contact point be played certain protection simultaneously by generating, and improve the water resistance of product；Using carbide slag (mainly at
It is divided into Ca (OH)2) strong basicity while exciting activity of metakaolin, and the soluble phosphoric acid reactant salt in ardealite,
Objectionable impurities phosphorus can be cured and eliminate its influence to properties of product；Using the EPS particles of ultralow unit weight as light-weight aggregate, together
When during prepared by modified barium slurry body, H in acid phosphogypsum dihydrate+With CO in barium slag3 2-It reacts and is also introduced into portion
Divide CO2Gas, and by the regulation and control to slurry viscosity, realize that (EPS particles and the bulk density difference of gypsum slurry are more than highly dense poor slurry
100 times) high stability, realize that the light thermal-insulation of plank, unit weight are adjustable.
The beneficial effects of the present invention are：1, the phosphogypsum light board lightweight provided by the invention prepared using barium slag is protected
Temperature, unit weight is in 600-1000Kg/m3Adjustable in range, thermal coefficient is below 0.15W/ (mK), without apparent delamination splitting, stone
The micro-expansibility of cream aquation can effectively overcome the problems, such as conventional cementitious panels shrinkage cracking, prepared light weight board items
JGT169-2016 can be satisfied by《Light lath for building partition wall generic specifications》Standard；2, the present invention using barium slag and
Phosphogypsum dihydrate prepares phosphogypsum light plank, realizes the cooperative disposal and recycling of barium slag and ardealite, the useless rate of profit
Height gives full play to the physicochemical characteristic of various wastes, realizes the cooperative disposal and money of a variety of trade wastes such as barium slag, ardealite
Sourceization utilizes, energy conservation and environmental protection.
Specific implementation mode
To make those skilled in the art more fully understand technical scheme of the present invention, the present invention is made with reference to embodiment
It is described in further detail.
The embodiment of the present invention provides a kind of phosphogypsum light plank and preparation method thereof using barium slag.The embodiment of the present invention
Barium slag used is the industrial residue generated during producing barium salt, main component BaSO4、BaCO3、BaSiO3, BaS and one
A little heavy metal, rare earth elements, tail over through 80 μm of square hole screens no more than 10% after drying is levigate；Phosphogypsum dihydrate used is original state phosphorus
Gypsum, attached water (H2O) mass fraction is less than 15%, and the mass fraction of calcium sulphate dihydrate is more than 85%, five oxidation two of water solubility
Phosphorus mass fraction is less than 0.8%, pH 1.5-3；Phosphorus semi-hydrated gypsum used is phosphorus high strength gypsum and phosphorus building gypsum according to 4：1
The mixture of ratio, used in phosphorus high strength gypsum be Shandong Jinxin New Building Material Co., Ltd. production, phosphorus high strength gypsum 2h
Flexural strength is more than 6MPa, and phosphorus building gypsum 2h flexural strengths are more than 3MPa；SiO in metakaolin used2Content is 50-
55%, Al2O3Content is 42-47%, and 45 μm of residue on sieves are less than 0.005%；Carbide slag used is the waste residue generated when preparing acetylene
Dry it is levigate be sieved to obtain through 80 μm of square hole screens, and tail over no more than 10%；Light-weight aggregate used is expanded polystyrene (EPS) (EPS)
Grain, grain diameter 1-3mm, bulk density 8Kg/m3；Retarder used is gypsum special retarder；Water-reducing agent used is melamine
Amine water-reducing agent, water-reducing rate 21%；Water-retaining agent used is hydroxypropyl methyl cellulose ether, viscosity 50000mPas.
Embodiment 1
A kind of phosphogypsum light plank prepared using barium slag is provided, component and parts by weight content include：
10 parts of barium slag, 4 parts of phosphogypsum dihydrate, 64 parts of phosphorus high strength gypsum, phosphorus building gypsum (CaSO4·0.5H2O mass fractions
More than 85%) 16 parts, 5 parts of metakaolin, 1 part of carbide slag, 1.2 parts of light-weight aggregate, 0.1 part of retarder, 0.2 part of water-reducing agent, water conservation
0.1 part of agent.
Steps are as follows for preparation method：
1) preparation of modified barium slurry material：Barium slag and phosphogypsum dihydrate are pressed into solid-to-liquid ratio 1：3 add water to mix and stir, and at 45 DEG C
1.5h is stirred, modified barium slurry material is obtained；
2) preparation of phosphogypsum light plank, will modified barium slurry material obtained by step 1) and phosphorus semi-hydrated gypsum, metakaolin,
Carbide slag, light-weight aggregate, retarder, water-reducing agent and water-retaining agent are added in blender, stir 4min, and the slurry after being subsequently agitated for is rapid
Injection die for molding obtains phosphogypsum light plank.
Phosphogypsum light plate property test data prepared by the present embodiment is shown in Table 1, and properties are satisfied by JGT169-
2016《Light lath for building partition wall generic specifications》The requirement of middle various specifications product.
Embodiment 2
A kind of phosphogypsum light plank prepared using barium slag is provided, component and parts by weight content include：
20 parts of barium slag, 10 parts of phosphogypsum dihydrate, 48 parts of phosphorus high strength gypsum, 12 parts of phosphorus building gypsum, 10 parts of metakaolin, electricity
3 parts of rock ballast, 0.5 part of light-weight aggregate, 0.3 part of water-reducing agent.
Steps are as follows for preparation method：
1) preparation of modified barium slurry material：Barium slag and phosphogypsum dihydrate are pressed into solid-to-liquid ratio 1：1.6 add water to mix and stir, and at 55 DEG C
Lower stirring 2.5h obtains modified barium slurry material；
2) preparation of phosphogypsum light plank, will modified barium slurry material obtained by step 1) and phosphorus semi-hydrated gypsum, metakaolin,
Carbide slag, light-weight aggregate, retarder, water-reducing agent and water-retaining agent are added in blender, stir 3min, and the slurry after being subsequently agitated for is rapid
Injection die for molding obtains phosphogypsum light plank.
Phosphogypsum light plate property test data prepared by the present embodiment is shown in Table 1, and properties are satisfied by JGT169-
2016《Light lath for building partition wall generic specifications》The requirement of middle various specifications product.
Embodiment 3
A kind of phosphogypsum light plank prepared using barium slag is provided, component and parts by weight content include：
15 parts of barium slag, 7 parts of phosphogypsum dihydrate, 60 parts of phosphorus high strength gypsum, 15 parts of phosphorus building gypsum, 10 parts of metakaolin, electricity
2 parts of rock ballast, 0.8 part of light-weight aggregate, 0.05 part of retarder, 0.1 part of water-reducing agent, 0.05 part of water-retaining agent.
Steps are as follows for preparation method：
1) preparation of modified barium slurry material：Barium slag and phosphogypsum dihydrate are pressed into solid-to-liquid ratio 1：2.3 add water to mix and stir, and at 50 DEG C
Lower stirring 2h obtains modified barium slurry material；
2) preparation of phosphogypsum light plank, will modified barium slurry material obtained by step 1) and phosphorus semi-hydrated gypsum, metakaolin,
Carbide slag, light-weight aggregate, retarder, water-reducing agent and water-retaining agent are added in blender, stir 4min, and the slurry after being subsequently agitated for is rapid
Injection die for molding obtains phosphogypsum light plank.
Phosphogypsum light plate property test data prepared by the present embodiment is shown in Table 1, and properties are satisfied by JGT169-
2016《Light lath for building partition wall generic specifications》The requirement of middle various specifications product.
Embodiment 4
A kind of phosphogypsum light plank prepared using barium slag is provided, component and parts by weight content include：
10 parts of barium slag, 4 parts of phosphogypsum dihydrate, 56 parts of phosphorus high strength gypsum, 14 parts of phosphorus building gypsum, 15 parts of metakaolin, electricity
3 parts of rock ballast, 0.8 part of light-weight aggregate, 0.05 part of retarder, 0.2 part of water-reducing agent, 0.05 part of water-retaining agent.
Steps are as follows for preparation method：
1) preparation of modified barium slurry material：Barium slag and phosphogypsum dihydrate are pressed into solid-to-liquid ratio 1：3 add water to mix and stir, and at 45 DEG C
1.5h is stirred, modified barium slurry material is obtained；
2) preparation of phosphogypsum light plank, will modified barium slurry material obtained by step 1) and phosphorus semi-hydrated gypsum, metakaolin,
Carbide slag, light-weight aggregate, retarder, water-reducing agent and water-retaining agent are added in blender, stir 4min, and the slurry after being subsequently agitated for is rapid
Injection die for molding obtains phosphogypsum light plank.
Phosphogypsum light plate property test data prepared by the present embodiment is shown in Table 1, and properties are satisfied by JGT169-
2016《Light lath for building partition wall generic specifications》The requirement of middle various specifications product.
Embodiment 5
A kind of phosphogypsum light plank prepared using barium slag is provided, component and parts by weight content include：
12 parts of barium slag, 6 parts of phosphogypsum dihydrate, 60 parts of phosphorus high strength gypsum, 15 parts of phosphorus building gypsum, 8 parts of metakaolin, calcium carbide
2 parts of slag, 0.8 part of light-weight aggregate, 0.1 part of retarder, 0.2 part of water-reducing agent, 0.05 part of water-retaining agent.
Steps are as follows for preparation method：
1) preparation of modified barium slurry material：Barium slag and phosphogypsum dihydrate are pressed into solid-to-liquid ratio 1：2.7 add water to mix and stir, and at 50 DEG C
Lower stirring 2h obtains modified barium slurry material；
2) preparation of phosphogypsum light plank, will modified barium slurry material obtained by step 1) and phosphorus semi-hydrated gypsum, metakaolin,
Carbide slag, light-weight aggregate, retarder, water-reducing agent and water-retaining agent are added in blender, stir 4min, and the slurry after being subsequently agitated for is rapid
Injection die for molding obtains phosphogypsum light plank.
Phosphogypsum light plate property test data prepared by the present embodiment is shown in Table 1, and properties are satisfied by JGT169-
2016《Light lath for building partition wall generic specifications》The requirement of middle various specifications product.
The examples detailed above 1-5 light weight boards prepared are tested for the property, test result is shown in Table 1：
Table 1
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, in the essence for not departing from the present invention
In the case of refreshing and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a kind of phosphogypsum light plank prepared using barium slag, which is characterized in that the phosphogypsum light plank raw material components
And its mass parts are as follows：10-20 parts of barium slag, 4-10 parts of phosphogypsum dihydrate, 60-80 parts of phosphorus semi-hydrated gypsum, 5-15 parts of metakaolin,
1-3 parts of carbide slag, 0.5-1.2 parts of light-weight aggregate, 0-0.1 parts of retarder, 0.1-0.3 parts of water-reducing agent, 0-0.1 parts of water-retaining agent；
The phosphorus semi-hydrated gypsum is phosphorus high strength gypsum and phosphorus building gypsum according to mass ratio 4：1 mixture being mixed to get, wherein
Phosphorus high strength gypsum 2h flexural strengths are more than 6MPa, and phosphorus building gypsum 2h flexural strengths are more than 3MPa.
2. the phosphogypsum light plank according to claim 1 prepared using barium slag, which is characterized in that the barium slag is made a living
The levigate rear sieving of industrial residue drying generated during production barium salt obtains, and is tailed over no more than 10% through 80 μm of square hole screens.
3. the phosphogypsum light plank according to claim 1 prepared using barium slag, which is characterized in that the two water phosphorus stone
Attached water mass fraction is less than 15% in cream, and the mass fraction of calcium sulphate dihydrate is more than 85%, water-soluble phosphorus pentoxide quality
Score is less than 0.8%, pH 1.5-3.
4. the phosphogypsum light plank according to claim 1 prepared using barium slag, which is characterized in that the metakaolin
Middle SiO2Content is 50-55%, Al2O3Content is 42-47%, and 45 μm of residue on sieves are less than 0.005%.
5. the phosphogypsum light plank according to claim 1 prepared using barium slag, which is characterized in that the carbide slag is
It prepares that the waste residue drying generated when acetylene is levigate to be sieved to obtain through 80 μm of square hole screens, and tails over no more than 10%.
6. the phosphogypsum light plank according to claim 1 prepared using barium slag, which is characterized in that the light-weight aggregate is
Expanded polystyrene particle, grain diameter 1-3mm, bulk density 5-12Kg/m3。
7. the phosphogypsum light plank according to claim 1 prepared using barium slag, which is characterized in that the retarder is
Gypsum special retarder.
8. the phosphogypsum light plank according to claim 1 prepared using barium slag, which is characterized in that the water-reducing agent is
Melamine water reducing agent, water-reducing rate are more than 15%.
9. the phosphogypsum light plank according to claim 1 prepared using barium slag, which is characterized in that the water-retaining agent is
Hydroxypropyl methyl cellulose ether, viscosity 10000-400000mPas.
10. a kind of preparation method of any phosphogypsum light planks prepared using barium slag of claim 1-9, feature
It is, is as follows：
1) raw material is weighed in proportion, it is spare；
2) barium slag and phosphogypsum dihydrate are pressed into solid-to-liquid ratio 1：1.6-3 adds water to mix and stir, and stirs 1.5-2.5h at 45-55 DEG C and obtain
Modified barium slurry material；
3) as needed, barium slurry material and phosphorus semi-hydrated gypsum will be modified obtained by step 2), metakaolin, carbide slag, light-weight aggregate, delayed
Solidifying agent, water-reducing agent and water-retaining agent are added in blender, stir 3-4min, and subsequent casting obtains phosphogypsum light plank.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110105039A (en) * | 2019-05-20 | 2019-08-09 | 湖北工业大学 | The preparation method of anhydrous ardealite base assembled light partition wall batten |
| CN113979659A (en) * | 2021-10-25 | 2022-01-28 | 赵源 | Modified beta-phosphogypsum and modification method thereof, modifier for beta-phosphogypsum and application method thereof |
| CN113996639A (en) * | 2021-11-03 | 2022-02-01 | 贵州省化工研究院 | Synergistic harmless treatment method for barium slag and phosphogypsum |
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| CN113979659A (en) * | 2021-10-25 | 2022-01-28 | 赵源 | Modified beta-phosphogypsum and modification method thereof, modifier for beta-phosphogypsum and application method thereof |
| CN113996639A (en) * | 2021-11-03 | 2022-02-01 | 贵州省化工研究院 | Synergistic harmless treatment method for barium slag and phosphogypsum |
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