CN109467376A - A kind of preparation method of soft plaster, application and gypsum sheet material - Google Patents
A kind of preparation method of soft plaster, application and gypsum sheet material Download PDFInfo
- Publication number
- CN109467376A CN109467376A CN201811365294.2A CN201811365294A CN109467376A CN 109467376 A CN109467376 A CN 109467376A CN 201811365294 A CN201811365294 A CN 201811365294A CN 109467376 A CN109467376 A CN 109467376A
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- China
- Prior art keywords
- parts
- gypsum
- sheet material
- added
- soft plaster
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/50—Flexible or elastic materials
- C04B2111/506—Bendable material
-
- 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
Abstract
The invention discloses the preparation methods of a kind of soft plaster, application and gypsum sheet material, are related to building material technical field.The high-intensity fibers such as PVA are added in gypsum, can effectively solve the problems, such as that existing gypsum brittleness is big, improve the flexibility of gypsum, expand application of the gypsum sheet material in building decoration area using gypsum material as carrier by the present invention.Soft plaster is prefabricated into gypsum sheet material, has the characteristics that flexible, is directly affixed on metope, working procedure is simple, can carry out a degree of bending according to the different structure and construction characteristic of metope, create an aesthetic feeling.
Description
Technical field
The present invention relates to the preparations of building material technical field more particularly to a kind of soft plaster, application and gypsum sheet material
Method.
Background technique
Phenomena such as traditional ceramic tile brittleness is very big, is easy to appear rupture when being laid with, falls off；And southern area is rainy, humidity
It is larger, it is easy to hang water when traditional ceramic tile uses indoors, causes indoor moisture heavier, long-time service then will appear mouldy wait now
As.And indoor water vapor absorption can be kept indoor humidity to balance by gypsum material good permeability, distinctive " breathing " performance,
Phenomena such as being not in ponding, for the ease of being laid with, plasterboard comes into being.
Currently, with the development of science and technology, plasterboard has been widely used for house, office building, shop, hotel and work
Internal partition wall, wall cladding boards (instead of floated coat), the ceiling, abatvoix, ground layer of the various buildings such as industry workshop
Plate and various decorative panels.
In addition, the metope handled by gypsum putty powder, due to powder of lacquer putty for use on complicated construction technique, if using inferior materials and turning out substandard goods, constructing not
When, do not do the processing such as waterproof and be easy so that hollowing, cracking occur for metope, or even phenomena such as fall off.And then by using plasterboard
It is possible to prevente effectively from the problem that construction is cumbersome.
However, commercially available plasterboard brittleness is big, easy to crack or even fracture, there are security risks when house ornamentation.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of flexible soft plaster construction materials of good toughness.
To solve the above-mentioned problems, the present invention proposes following technical scheme:
In a first aspect, the present invention proposes a kind of soft plaster, in parts by weight, including following components: 500-700 parts of desulfurization
Gypsum, 100-300 part cement, 2.5-3.5 parts of calcium sulphate retarders, 200-500 parts of quartz sands, 3-5 parts of hydroxymethyl cellulose ethers, 3-
14 added materials, 200-450 parts of water；The added material is at least one of PVA fiber or basalt fibre.
Further technical solution is for it, and stating PVA fiber is high-strength high-modulus fibre, length 6-12mm, tensile strength
1200-1600MPa, elasticity modulus 35-38GPa；The basalt fibre length is 6-12mm.
Further technical solution is for it, and the water requirement of the desulfurized gypsum is 50-70%.
Further technical solution is for it, and the calcium sulphate retarder is citric acid salt retarder.
Further technical solution is for it, and the quartz sand particle size is 30-50 mesh.
Further technical solution is for it, and the cement is No. 425 portland cements.
The present invention also proposes soft plaster as described in relation to the first aspect in the application for preparing gypsum sheet material.
Second aspect, the present invention propose a kind of preparation method of gypsum sheet material, including flexible stone as described in relation to the first aspect
Cream.
Further technical solution is for it, comprising the following steps:
S1 is uniform by desulfurized gypsum, calcium sulphate retarder and cement mixing in proportion；
The 1/3 of water is added in S2；
Quartz sand, hydroxymethyl cellulose ether is added in S3, and remaining water is all added, 1-3min is mixed；
Added material is added in S4 into S3 in proportion, after being uniformly dispersed, injects mold, obtains gypsum sheet material after molding.
Further technical solution is for it, the gypsum sheet material with a thickness of 2-4mm.
Compared with prior art, the attainable technical effect of present invention institute includes:
By the way that PVA, the high-intensity fibers such as basalt are added in gypsum, it can effectively solve that existing gypsum brittleness is big to ask
Topic, improves the flexibility of gypsum, expands application of the gypsum sheet material in building decoration area.Soft plaster is prefabricated into plasterboard
Material has the characteristics that flexible, is directly affixed on metope, and working procedure is simple, can different structure according to metope and construction
Feature carries out a degree of bending, creates an aesthetic feeling.
Specific embodiment
The technical solution in embodiment will be clearly and completely described below.Obviously, it will be described below embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should be appreciated that ought use in this specification and in the appended claims, term " includes " and "comprising" instruction
Described feature, entirety, step, operation, the presence of element and/or component, but one or more of the other feature, whole is not precluded
Body, step, operation, the presence or addition of element, component and/or its set.
It is also understood that in this embodiment of the present invention term used in the description merely for the sake of description particular implementation
Example purpose and be not intended to limit the embodiment of the present invention.Such as the institute in specification and appended book of the embodiment of the present invention
As use, other situations unless the context is clearly specified, otherwise " one " of singular, "one" and "the" are intended to wrap
Include plural form.
Embodiment 1
The embodiment of the present invention provides a kind of soft plaster, in parts by weight, including following components: 500 parts of desulfurized gypsums,
100 parts of cement, 3.5 parts of calcium sulphate retarders, 200 parts of quartz sands, 3 parts of hydroxymethyl cellulose ethers, 3 parts of PVA fibers, 300 parts of water.
In one embodiment, the PVA fiber is high-strength high-modulus fibre, length 6mm, tensile strength 1200MPa, bullet
Property modulus be 35GPa.
In one embodiment, the water requirement of the desulfurized gypsum is 50%.
In one embodiment, the calcium sulphate retarder is citric acid salt retarder.
In one embodiment, the quartz sand particle size is 30 mesh.
In one embodiment, the cement is No. 425 portland cements.
The present embodiment also proposes above-mentioned soft plaster in the application for preparing gypsum sheet material.
The embodiment of the present invention provides the method for preparing gypsum sheet material using above-mentioned soft plaster, comprising the following steps:
S1 is uniform by desulfurized gypsum, calcium sulphate retarder and cement mixing in proportion；
The 1/3 of water is added in S2；
Quartz sand, hydroxymethyl cellulose ether is added in S3, and remaining water is all added, 3min is mixed；
PVA fiber is added into S3 by S4, after being uniformly dispersed, injects mold, obtains gypsum sheet material after molding.
In one embodiment, gypsum sheet material obtained with a thickness of 3mm.
It should be noted that the shape of gypsum sheet material can be needed voluntarily to set by those skilled in the art according to the construction of building
Mold is counted, and is produced in batches, the present invention is not specifically limited in this embodiment.Gypsum sheet material is ceramic tile imitation product flexible, can be straight
It connects on metope.Gypsum material has preferable respiratory, the water vapor absorption that interior can be had more than needed, and discharges when dry
Part vapor can enduringly protect metope not influenced by moist gentle time to achieve the effect that keep indoor humidity.
The present embodiment can effectively solve the problems, such as that existing gypsum brittleness is big by the addition PVA high-intensity fiber in gypsum,
The flexibility for improving gypsum, expands application of the gypsum sheet material in building decoration area.Soft plaster is prefabricated into gypsum sheet material,
Have the characteristics that flexible, be directly affixed on metope, working procedure is simple, can be according to the different structure and construction characteristic of metope
A degree of bending is carried out, is created an aesthetic feeling.
Embodiment 2
The embodiment of the present invention provides a kind of soft plaster, in parts by weight, including following components: 600 parts of desulfurized gypsums,
300 parts of cement, 2.5 parts of calcium sulphate retarders, 500 parts of quartz sands, 5 parts of hydroxymethyl cellulose ethers, 7 parts of PVA fibers, 400 parts of water.
In one embodiment, the PVA fiber is high-strength high-modulus fibre, length 8mm, tensile strength 1600MPa, bullet
Property modulus be 36GPa.
In one embodiment, the water requirement of the desulfurized gypsum is 70%.
In one embodiment, the calcium sulphate retarder is citric acid salt retarder.
In one embodiment, the quartz sand particle size is 50 mesh.
In one embodiment, the cement is No. 425 portland cements.
The present embodiment also proposes above-mentioned soft plaster in the application for preparing gypsum sheet material.
The embodiment of the present invention provides the method for preparing gypsum sheet material using above-mentioned soft plaster, comprising the following steps:
S1 is uniform by desulfurized gypsum, calcium sulphate retarder and cement mixing in proportion；
The 1/3 of water is added in S2；
Quartz sand, hydroxymethyl cellulose ether is added in S3, and remaining water is all added, 2min is mixed；
PVA fiber is added into S3 by S4, after being uniformly dispersed, injects mold, obtains gypsum sheet material after molding.
In one embodiment, gypsum sheet material obtained with a thickness of 3.8mm.
Embodiment 3
The embodiment of the present invention provides a kind of soft plaster, in parts by weight, including following components: 700 parts of desulfurized gypsums,
200 parts of cement, 3.1 parts of calcium sulphate retarders, 300 parts of quartz sands, 4 parts of hydroxymethyl cellulose ethers, 5 parts of PVA fibers and 3 parts of basalt
Fiber, 420 parts of water.
In one embodiment, stating PVA fiber is high-strength high-modulus fibre, length 6-12mm, tensile strength 1200-
1600MPa, elasticity modulus 35-38GPa；The basalt fibre length is 6mm.
In one embodiment, the water requirement of the desulfurized gypsum is 60%.
In one embodiment, the calcium sulphate retarder is citric acid salt retarder.
In one embodiment, the quartz sand particle size is 40 mesh.
In one embodiment, the cement is No. 425 portland cements.
The present embodiment also proposes above-mentioned soft plaster in the application for preparing gypsum sheet material.
The embodiment of the present invention provides the method for preparing gypsum sheet material using above-mentioned soft plaster, comprising the following steps:
S1 is uniform by desulfurized gypsum, calcium sulphate retarder and cement mixing in proportion；
The 1/3 of water is added in S2；
Quartz sand, hydroxymethyl cellulose ether is added in S3, and remaining water is all added, 1min is mixed；
PVA fiber and basalt fibre is added in S4 into S3 in proportion, after being uniformly dispersed, injects mold, makes after molding
Obtain gypsum sheet material.
In one embodiment, gypsum sheet material obtained with a thickness of 2mm.
Embodiment 4
The embodiment of the present invention provides a kind of soft plaster, in parts by weight, including following components: 550 parts of desulfurized gypsums,
230 parts of cement, 2.8 parts of calcium sulphate retarders, 360 parts of quartz sands, 4.2 parts of hydroxymethyl cellulose ethers, 3.8 parts of PVA fibers and 7 parts are profound
Military rock fiber, 350 parts of water.
In one embodiment, the PVA fiber be high-strength high-modulus fibre, length 10mm, tensile strength 1500MPa,
Elasticity modulus is 37GPa, and the length of the basalt fibre is 12mm.
In one embodiment, the water requirement of the desulfurized gypsum is 55%.
In one embodiment, the calcium sulphate retarder is citric acid salt retarder.
In one embodiment, the quartz sand particle size is 35 mesh.
In one embodiment, the cement is No. 425 portland cements.
The present embodiment also proposes above-mentioned soft plaster in the application for preparing gypsum sheet material.
The embodiment of the present invention provides the method for preparing gypsum sheet material using above-mentioned soft plaster, comprising the following steps:
S1 is uniform by desulfurized gypsum, calcium sulphate retarder and cement mixing in proportion；
The 1/3 of water is added in S2；
Quartz sand, hydroxymethyl cellulose ether is added in S3, and remaining water is all added, 3min is mixed；
PVA fiber and basalt fibre is added in S4 into S3 in proportion, after being uniformly dispersed, injects mold, makes after molding
Obtain gypsum sheet material.
In one embodiment, gypsum sheet material obtained with a thickness of 4mm.
Embodiment 5
The embodiment of the present invention provides a kind of soft plaster, in parts by weight, including following components: 550 parts of desulfurized gypsums,
230 parts of cement, 2.8 parts of calcium sulphate retarders, 360 parts of quartz sands, 4.2 parts of hydroxymethyl cellulose ethers, 3 parts of basalt fibres, 200 parts
Water.
In one embodiment, the basalt fibre, length 10mm.
In one embodiment, the water requirement of the desulfurized gypsum is 55%.
In one embodiment, the calcium sulphate retarder is citric acid salt retarder.
In one embodiment, the quartz sand particle size is 35 mesh.
In one embodiment, the cement is No. 425 portland cements.
The present embodiment also proposes above-mentioned soft plaster in the application for preparing gypsum sheet material.
The embodiment of the present invention provides the method for preparing gypsum sheet material using above-mentioned soft plaster, comprising the following steps:
S1 is uniform by desulfurized gypsum, calcium sulphate retarder and cement mixing in proportion；
The 1/3 of water is added in S2；
Quartz sand, hydroxymethyl cellulose ether is added in S3, and remaining water is all added, 3min is mixed；
Basalt fibre is added in S4 into S3 in proportion, after being uniformly dispersed, injects mold, obtains plasterboard after molding
Material.
In one embodiment, gypsum sheet material obtained with a thickness of 2.5mm.
Embodiment 6
The embodiment of the present invention provides a kind of soft plaster, in parts by weight, including following components: 550 parts of desulfurized gypsums,
230 parts of cement, 2.8 parts of calcium sulphate retarders, 360 parts of quartz sands, 4.2 parts of hydroxymethyl cellulose ethers, 6.8 parts of basalt fibres, 420
Part water.
In one embodiment, the basalt fibre, length 6mm.
In one embodiment, the water requirement of the desulfurized gypsum is 65%.
In one embodiment, the calcium sulphate retarder is citric acid salt retarder.
In one embodiment, the quartz sand particle size is 45 mesh.
In one embodiment, the cement is No. 425 portland cements.
The present embodiment also proposes above-mentioned soft plaster in the application for preparing gypsum sheet material.
The embodiment of the present invention provides the method for preparing gypsum sheet material using above-mentioned soft plaster, comprising the following steps:
S1 is uniform by desulfurized gypsum, calcium sulphate retarder and cement mixing in proportion；
The 1/3 of water is added in S2；
Quartz sand, hydroxymethyl cellulose ether is added in S3, and remaining water is all added, 2min is mixed；
Basalt fibre is added in S4 into S3 in proportion, after being uniformly dispersed, injects mold, obtains plasterboard after molding
Material.
In one embodiment, gypsum sheet material obtained with a thickness of 2.8mm.
Embodiment 7
The embodiment of the present invention provides a kind of soft plaster, in parts by weight, including following components: 550 parts of desulfurized gypsums,
230 parts of cement, 2.8 parts of calcium sulphate retarders, 360 parts of quartz sands, 4.2 parts of hydroxymethyl cellulose ethers, 5 parts of basalt fibres, 380 parts
Water.
In one embodiment, the basalt fibre, length 8mm.
In one embodiment, the water requirement of the desulfurized gypsum is 68%.
In one embodiment, the calcium sulphate retarder is citric acid salt retarder.
In one embodiment, the quartz sand particle size is 35 mesh.
In one embodiment, the cement is No. 425 portland cements.
The present embodiment also proposes above-mentioned soft plaster in the application for preparing gypsum sheet material.
The embodiment of the present invention provides the method for preparing gypsum sheet material using above-mentioned soft plaster, comprising the following steps:
S1 is uniform by desulfurized gypsum, calcium sulphate retarder and cement mixing in proportion；
The 1/3 of water is added in S2；
Quartz sand, hydroxymethyl cellulose ether is added in S3, and remaining water is all added, 1min is mixed；
Basalt fibre is added in S4 into S3 in proportion, after being uniformly dispersed, injects mold, obtains plasterboard after molding
Material.
In one embodiment, gypsum sheet material obtained with a thickness of 3.7mm.
Comparative experiments
It selects in the soft plaster of control group, experimental group 1, experimental group 2 and experimental group 3 containing identical ingredient: 500 parts of desulfurization stones
Cream, 100 parts of cement, 3.5 parts of calcium sulphate retarders, 200 parts of quartz sands, 3 parts of hydroxymethyl cellulose ethers, 300 parts of water.Wherein, it tests
3 parts of PVA fibers are added in group 1, and 3 parts of basalt fibres are added in experimental group 2, and 1.5 parts of PVA fibers and 1.5 parts of Black Warriors are added in experimental group 3
Rock fiber, control group are added without.
The soft plaster of control group, experimental group 1, experimental group 2 and experimental group 3 is made to the gypsum sheet material of thickness 3mm, is surveyed respectively
Measure its bending strength and compression strength.
Experimental result is shown in the following table 1:
| Group name | Bending strength/MPa | Compression strength/MPa |
| Experimental group 1 | 7.5 | 25.4 |
| Experimental group 2 | 7.6 | 25.3 |
| Experimental group 3 | 7.7 | 25.8 |
| Control group | 5.1 | 22.1 |
Table 1 is the result that control group, experimental group 1, experimental group 2 and experimental group 3 respectively measure bending strength and compression strength.By
Table 1 is it is found that experimental group 1, experimental group 2 and experimental group 3 are added to PVA fiber and/or basalt fibre, gypsum sheet material obtained
There is more excellent bending strength and compression strength compared with control group.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in some embodiment
Part, reference can be made to the related descriptions of other embodiments.
The above is a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, any ripe
It knows those skilled in the art in the technical scope disclosed by the present invention, various equivalent modifications can be readily occurred in or replaces
It changes, these modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with right
It is required that protection scope subject to.
Claims (10)
1. a kind of soft plaster, which is characterized in that in parts by weight, including following components: 500-700 parts of desulfurized gypsums, 100-
300 parts of cement, 2.5-3.5 parts of calcium sulphate retarders, 200-500 parts of quartz sands, 3-5 parts of hydroxymethyl cellulose ethers, 3-14 parts of additions
Material, 200-450 parts of water；The added material is at least one of PVA fiber or basalt fibre.
2. soft plaster as described in claim 1, which is characterized in that the PVA fiber is high-strength high-modulus fibre, length 6-
12mm, tensile strength 1200-1600MPa, elasticity modulus 35-38GPa；The basalt fibre length is 6-12mm.
3. soft plaster as claimed in claim 2, which is characterized in that the water requirement of the desulfurized gypsum is 50-70%.
4. soft plaster as claimed in claim 3, which is characterized in that the calcium sulphate retarder is citric acid salt retarder.
5. soft plaster as claimed in claim 4, which is characterized in that the quartz sand particle size is 30-50 mesh.
6. soft plaster as claimed in claim 5, which is characterized in that the cement is No. 425 portland cements.
7. soft plaster as claimed in any one of claims 1 to 6 is in the application for preparing gypsum sheet material.
8. a kind of preparation method of gypsum sheet material, which is characterized in that including flexible stone as claimed in any one of claims 1 to 6
Cream.
9. the preparation method of gypsum sheet material as claimed in claim 8, which comprises the following steps:
S1 is uniform by desulfurized gypsum, calcium sulphate retarder and cement mixing in proportion；
The 1/3 of water is added in S2；
Quartz sand, hydroxymethyl cellulose ether is added in S3, and remaining water is all added, 1-3min is mixed；
Added material is added in S4 into S3 in proportion, after being uniformly dispersed, injects mold, obtains gypsum sheet material after molding.
10. the preparation method of gypsum sheet material as claimed in claim 9, which is characterized in that the gypsum sheet material with a thickness of 2-
4mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811365294.2A CN109467376A (en) | 2018-11-16 | 2018-11-16 | A kind of preparation method of soft plaster, application and gypsum sheet material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811365294.2A CN109467376A (en) | 2018-11-16 | 2018-11-16 | A kind of preparation method of soft plaster, application and gypsum sheet material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112694311A (en) * | 2021-03-02 | 2021-04-23 | 王柏泉 | Composition for self-compacting gypsum-based board, board and composite board comprising same |
| CN115959878A (en) * | 2022-12-26 | 2023-04-14 | 上海恩加岛建筑新材料科技有限公司 | Water-soaking bendable shaping gypsum substrate, preparation method thereof and application method for manufacturing special-shaped building |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691292A (en) * | 2009-09-30 | 2010-04-07 | 谢日清 | Lightweight wall plaster |
-
2018
- 2018-11-16 CN CN201811365294.2A patent/CN109467376A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691292A (en) * | 2009-09-30 | 2010-04-07 | 谢日清 | Lightweight wall plaster |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112694311A (en) * | 2021-03-02 | 2021-04-23 | 王柏泉 | Composition for self-compacting gypsum-based board, board and composite board comprising same |
| CN115959878A (en) * | 2022-12-26 | 2023-04-14 | 上海恩加岛建筑新材料科技有限公司 | Water-soaking bendable shaping gypsum substrate, preparation method thereof and application method for manufacturing special-shaped building |
| CN115959878B (en) * | 2022-12-26 | 2024-03-22 | 上海恩加岛建筑新材料科技有限公司 | Water-soaking bendable shaping gypsum substrate, preparation method thereof and application method for manufacturing special-shaped building |
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