CN109400102A - A kind of plastering gupsum - Google Patents
A kind of plastering gupsum Download PDFInfo
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- CN109400102A CN109400102A CN201811570087.0A CN201811570087A CN109400102A CN 109400102 A CN109400102 A CN 109400102A CN 201811570087 A CN201811570087 A CN 201811570087A CN 109400102 A CN109400102 A CN 109400102A
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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
- C04B28/147—Calcium sulfate hemi-hydrate with a specific crystal form beta-hemihydrate
-
- 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
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable mixtures
- C04B2111/00155—Sprayable, i.e. concrete-like, materials able to be shaped by spraying instead of by casting, e.g. gunite
-
- 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
- C04B2201/30—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
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- 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)
Abstract
The invention belongs to gypsum technical fields, specially a kind of plastering gupsum, it comprises the following components in parts by weight: 50-90 parts of desulfurized gypsum, grey calcium 2-10 parts, 5-10 parts of fine sand, 5-10 parts of steam-pressing aero-concrete waste material, 0.15-0.2 parts of water-retaining agent, 1-1.5 parts of retarder, 2-2.5 parts of hydrophober, 0.5-1.5 parts of rheology modifier.The dedicated plastering gupsum of steam-pressing aero-concrete of the present invention has the advantages that lightweight, water-fast, setting time is moderate, can be used for mechanically spraying construction.
Description
Technical field
The invention belongs to gypsum technical field, specially a kind of plastering gupsum.
Background technique
Steam pressurized foam concrete has many advantages, such as lightweight, heat preservation, sound insulation, fire prevention, durable, be widely used in every
Wall, exterior wall etc..Currently, with the extensive use of steam pressurized foam concrete, requirement of the people to later period wall decoration quality
Higher and higher, traditional cement mortar or mixed mortar, because of it there are inevitable hollowing, crack, fall off and other issues,
In addition the disadvantages of setting time is long, hardening is slow, seriously affects construction speed, traditional plastering mortar density is 1500-2000kg/
m3, steam-pressing aero-concrete heat preservation, sound insulation property are seriously affected, the development situation of current materials for wall has not been met.
Plastering gupsum is a kind of current novel plastering material, has that cohesive force is strong, fireproofing and heat resistant, voluntarily adjusts indoor humidity
The advantages that, but plastering gupsum in the prior art haves the shortcomings that setting time is fast, coefficient of softing is high, makes it in terms of construction
It is not dominant, constrain the popularization and application of plastering gupsum.
Technical solution
To solve above-mentioned the technical problems existing in the prior art, the invention discloses a kind of lightweights, water-fast, setting time
It is moderate, it can be used for the steam-pressing aero-concrete plastering gupsum of mechanically spraying construction.
The specific technical solution of the present invention is as follows:
A kind of plastering gupsum, comprises the following components in parts by weight: 50-90 parts of desulfurized gypsum, grey calcium 2-10 parts, and fine sand 5-10
Part, 5-10 parts of steam-pressing aero-concrete waste material, 0.15-0.2 parts of water-retaining agent, 1-1.5 parts of retarder, 2-2.5 parts of hydrophober, rheology
0.5-1.5 parts of modifying agent.
Preferably, the plastering gupsum comprises the following components in parts by weight: 70 parts of desulfurized gypsum, 5 parts of grey calcium, fine sand
5-10 parts, 5-10 parts of steam-pressing aero-concrete waste material, 0.15-0.2 parts of water-retaining agent, 1-1.5 parts of retarder, 2-2.5 parts of hydrophober,
0.5-1.5 parts of rheology modifier.
Desulfurized gypsum is β type CaSO4.1/2H2O, the processes such as power plant desulfurization gypsum drying, calcining, ball milling, ageing, 2h are anti-
Compressive Strength >=3.0, the presetting period: 6-9min, 0.2mm square hole screen screen over-size≤10.0% mainly play glue in plastering gupsum
Solidifying effect, provides intensity.
Grey calcium main component Ca (OH)2, content >=90%, 45 μm screen over-size≤10.0%, grey calcium adjusts in plastering gupsum
Ph value is saved, with the CO in air2Reaction generates CaCO3, can be improved intensity, improve waterproofness.
Fine sand main component SiO2, content >=90%, fineness is 60-120 mesh, and fine sand plays aggregate in plastering gupsum
Effect, prevents from cracking, and improves intensity.
Steam-pressing aero-concrete waste material is steam-pressing aero-concrete through broken, sieving, fineness be 0.15mm throughput≤
2.0%, 4.75mm sieve screen over-size≤2.0%, and because steam-pressing aero-concrete is to be saturated the steam-cured formation of hot steam, moisture content is
15-40% is not suitable for being directly used in plastering gupsum, drying, moisture content≤2.0%, dry density 400-500kg/m3.Steam pressure
Aerating concrete waste material plays the role of light-weight aggregate in plastering gupsum, mitigates the density of plastering gupsum, improve plastering gupsum every
Sound, heat insulating ability greatly reduce material cost compared with light-weight aggregates such as conventional expanded perlite, glass beads.
Water-retaining agent uses hydroxypropyl methyl cellulose, viscosity 75000-100000mPa.s, and steam-pressing aero-concrete belongs to
Porous material, water imbibition with higher, water-retaining agent have good water-retaining property, guarantee water required for plastering gupsum aquation
Point, water retention >=98%.
Retarder uses protide calcium sulphate retarder SG-12, white powder, and fineness 0.15mm square hole screen tails over≤4.0%,
Retarder is stronger in gypsum crystal adsorption, delays the hydration and hardening of semi-hydrated gypsum, has good deferred action.
Hydrophober use polysiloxanes powder hydrophober, pH value 10-12, fineness be 200 mesh square hole screens tail over≤
2.0%.Hydrophober is easily dispersed, lapping surface, forms network structure, has very strong repulsive interaction to water after solidification.
Rheology modifier uses polyacrylate, is played a role by the entanglement of high molecular polymer strand, reduces stone
Cream crystal shearing force has pseudoplastic rheological ability, has anti-settling and mobility.
There are certain volume expansions for gypsum hydration process, have good adhesion strength and anti-hollowing cracking property.Stone
Cream hydrated product is calcium sulphate dihydrate, can discharge, absorb moisture, have good adjustment effect to indoor air humidity temperature,
Gypsum density is small, has the performances such as heat insulating and sound insulating.It is not only a kind of green, environmental protection, energy-saving material, also overcomes tradition plastering material
The defects of expecting big dried contract, hollowing, cracking and long construction period, has vast potential for future development.
Beneficial effect
The invention discloses a kind of dedicated plastering gupsums of steam-pressing aero-concrete, and with lightweight, water-fast, setting time is moderate
The advantages of, it can be used for mechanically spraying construction.
The plastering gupsum presetting period is 1.5h, and final setting time 4.0h can effectively adjust the construction time, avoid stone
Cream setting time is too fast, while can guarantee that plastering gupsum is able to carry out second operation work, and little to gypsum intensity effect.Institute
Stating plastering gupsum consistency is 85mm, is suitable for automatic machine pressure spray process, can construct on a large scale, construction efficiency is greatly improved.Using
Steam-pressing aero-concrete waste material by processing effectively consumes bring waste material in production process, avoids resource as light-weight aggregate
Waste reduces plastering gupsum thermal coefficient in addition, plastering gupsum density is effectively reduced.Using hydroxypropyl methyl cellulose conduct
Water-retaining agent keeps enough moisture in plastering gupsum to be used to gypsum hydration and hardening, with steam-pressing aero-concrete caking property it is strong, combine
Securely, phenomena such as avoiding hollowing from cracking.
Steam-pressing aero-concrete dry density is 400-500kg/m3, in process of production, inevitably exist some useless
Product.It by the waste product by broken, screening, drying, adds in plastering gupsum, both can be reduced steam-pressing aero-concrete scrap belt
Pollution environment, the problems such as land occupation, can also play the role of admixture, mitigate plastering gupsum density.
Specific embodiment
Embodiment 1
A kind of plastering gupsum, comprises the following components in parts by weight: 90 parts of desulfurized gypsum, 10 parts of grey calcium, and 10 parts of fine sand, steam pressure
10 parts of aerating concrete waste material, 0.2 part of water-retaining agent, 1.5 parts of retarder, 2.5 parts of hydrophober, 1.5 parts of rheology modifier.
Desulfurized gypsum is β type CaSO4.1/2H2O, the processes such as power plant desulfurization gypsum drying, calcining, ball milling, ageing, 2h are anti-
Compressive Strength >=3.0, the presetting period: 6-9min, 0.2mm square hole screen screen over-size≤10.0% mainly play glue in plastering gupsum
Solidifying effect, provides intensity.
Grey calcium main component Ca (OH)2, content >=90%, 45 μm screen over-size≤10.0%, grey calcium adjusts in plastering gupsum
Ph value is saved, with the CO in air2Reaction generates CaCO3, can be improved intensity, improve waterproofness.
Fine sand main component SiO2, content >=90%, fineness is 60-120 mesh, and fine sand plays aggregate in plastering gupsum
Effect, prevents from cracking, and improves intensity.
Steam-pressing aero-concrete waste material is steam-pressing aero-concrete through broken, sieving, fineness be 0.15mm throughput≤
2.0%, 4.75mm sieve screen over-size≤2.0%, and because steam-pressing aero-concrete is to be saturated the steam-cured formation of hot steam, moisture content is
15-40% is not suitable for being directly used in plastering gupsum, drying, moisture content≤2.0%, dry density 400-500kg/m3.Steam pressure
Aerating concrete waste material plays the role of light-weight aggregate in plastering gupsum, mitigates the density of plastering gupsum, improve plastering gupsum every
Sound, heat insulating ability greatly reduce material cost compared with light-weight aggregates such as conventional expanded perlite, glass beads.
Water-retaining agent uses hydroxypropyl methyl cellulose, viscosity 75000-100000mPa.s, and steam-pressing aero-concrete belongs to
Porous material, water imbibition with higher, water-retaining agent have good water-retaining property, guarantee water required for plastering gupsum aquation
Point, water retention >=98%.
Retarder uses protide calcium sulphate retarder SG-12, white powder, and fineness 0.15mm square hole screen tails over≤4.0%,
Retarder is stronger in gypsum crystal adsorption, delays the hydration and hardening of semi-hydrated gypsum, has good deferred action.
Hydrophober use polysiloxanes powder hydrophober, pH value 10-12, fineness be 200 mesh square hole screens tail over≤
2.0%.Hydrophober is easily dispersed, lapping surface, forms network structure, has very strong repulsive interaction to water after solidification.
Rheology modifier uses polyacrylate, is played a role by the entanglement of high molecular polymer strand, reduces stone
Cream crystal shearing force has pseudoplastic rheological ability, has anti-settling and mobility.
The performance of resulting plastering gupsum is detected, gained testing result is as shown in table 1.
The performance of 1. embodiment of the present invention of table, 1 gained plastering gupsum
The retarder that the dedicated plastering gupsum of steam-pressing aero-concrete is selected, adjustment plastering gupsum presetting period are 1.5h, eventually
The solidifying time is 4.0h, can effectively adjust the construction time, avoid gypsum setting time too fast, while can guarantee plastering gupsum
4.0h is able to carry out second operation work, and little to gypsum intensity effect.
Rheology modifier is selected, consistency 85mm can effectively adjust plastering gupsum consistency, be suitable for automatic machine and spray work
Skill can construct on a large scale, construction efficiency is greatly improved.
Using the steam-pressing aero-concrete waste material by processing as light-weight aggregate, it is useless effectively to consume bring in production process
Material, avoids the wasting of resources, in addition, plastering gupsum density is effectively reduced, reduces plastering gupsum thermal coefficient.
Using hydroxypropyl methyl cellulose as water-retaining agent, keep enough moisture in plastering gupsum hard for gypsum aquation
Change, with steam-pressing aero-concrete caking property it is strong, be firmly combined, hollowing avoided to crack phenomena such as.
Embodiment 2
A kind of plastering gupsum, comprises the following components in parts by weight: 50 parts of desulfurized gypsum, 2 parts of grey calcium, 5 parts of fine sand, steam pressure adds
5 parts of gas concrete waste material, 0.15 part of water-retaining agent, 1 part of retarder, 2 parts of hydrophober, 0.5 part of rheology modifier.
Desulfurized gypsum is β type CaSO4.1/2H2O, the processes such as power plant desulfurization gypsum drying, calcining, ball milling, ageing, 2h are anti-
Compressive Strength >=3.0, the presetting period: 6-9min, 0.2mm square hole screen screen over-size≤10.0% mainly play glue in plastering gupsum
Solidifying effect, provides intensity.
Grey calcium main component Ca (OH)2, content >=90%, 45 μm screen over-size≤10.0%, grey calcium adjusts in plastering gupsum
Ph value is saved, with the CO in air2Reaction generates CaCO3, can be improved intensity, improve waterproofness.
Fine sand main component SiO2, content >=90%, fineness is 60-120 mesh, and fine sand plays aggregate in plastering gupsum
Effect, prevents from cracking, and improves intensity.
Steam-pressing aero-concrete waste material is steam-pressing aero-concrete through broken, sieving, fineness be 0.15mm throughput≤
2.0%, 4.75mm sieve screen over-size≤2.0%, and because steam-pressing aero-concrete is to be saturated the steam-cured formation of hot steam, moisture content is
15-40% is not suitable for being directly used in plastering gupsum, drying, moisture content≤2.0%, dry density 400-500kg/m3.Steam pressure
Aerating concrete waste material plays the role of light-weight aggregate in plastering gupsum, mitigates the density of plastering gupsum, improve plastering gupsum every
Sound, heat insulating ability greatly reduce material cost compared with light-weight aggregates such as conventional expanded perlite, glass beads.
Water-retaining agent uses hydroxypropyl methyl cellulose, viscosity 75000-100000mPa.s, and steam-pressing aero-concrete belongs to
Porous material, water imbibition with higher, water-retaining agent have good water-retaining property, guarantee water required for plastering gupsum aquation
Point, water retention >=98%.
Retarder uses protide calcium sulphate retarder SG-12, white powder, and fineness 0.15mm square hole screen tails over≤4.0%,
Retarder is stronger in gypsum crystal adsorption, delays the hydration and hardening of semi-hydrated gypsum, has good deferred action.
Hydrophober use polysiloxanes powder hydrophober, pH value 10-12, fineness be 200 mesh square hole screens tail over≤
2.0%.Hydrophober is easily dispersed, lapping surface, forms network structure, has very strong repulsive interaction to water after solidification.
Rheology modifier uses polyacrylate, is played a role by the entanglement of high molecular polymer strand, reduces stone
Cream crystal shearing force has pseudoplastic rheological ability, has anti-settling and mobility.
Embodiment 3
A kind of plastering gupsum, comprises the following components in parts by weight: 70 parts of desulfurized gypsum, 5 parts of grey calcium, 8 parts of fine sand, steam pressure adds
7 parts of gas concrete waste material, 0.18 part of water-retaining agent, 1.2 parts of retarder, 2.2 parts of hydrophober, 1.0 parts of rheology modifier.
The plastering gupsum comprises the following components in parts by weight: 70 parts of desulfurized gypsum, 5 parts of grey calcium, steams by 5-10 parts of fine sand
It is 5-10 parts of pressing aero-concrete waste material, 0.15-0.2 parts of water-retaining agent, 1-1.5 parts of retarder, 2-2.5 parts of hydrophober, rheology modified
0.5-1.5 parts of agent.
Desulfurized gypsum is β type CaSO4.1/2H2O, the processes such as power plant desulfurization gypsum drying, calcining, ball milling, ageing, 2h are anti-
Compressive Strength >=3.0, the presetting period: 6-9min, 0.2mm square hole screen screen over-size≤10.0% mainly play glue in plastering gupsum
Solidifying effect, provides intensity.
Grey calcium main component Ca (OH)2, content >=90%, 45 μm screen over-size≤10.0%, grey calcium adjusts in plastering gupsum
Ph value is saved, with the CO in air2Reaction generates CaCO3, can be improved intensity, improve waterproofness.
Fine sand main component SiO2, content >=90%, fineness is 60-120 mesh, and fine sand plays aggregate in plastering gupsum
Effect, prevents from cracking, and improves intensity.
Steam-pressing aero-concrete waste material is steam-pressing aero-concrete through broken, sieving, fineness be 0.15mm throughput≤
2.0%, 4.75mm sieve screen over-size≤2.0%, and because steam-pressing aero-concrete is to be saturated the steam-cured formation of hot steam, moisture content is
15-40% is not suitable for being directly used in plastering gupsum, drying, moisture content≤2.0%, dry density 400-500kg/m3.Steam pressure
Aerating concrete waste material plays the role of light-weight aggregate in plastering gupsum, mitigates the density of plastering gupsum, improve plastering gupsum every
Sound, heat insulating ability greatly reduce material cost compared with light-weight aggregates such as conventional expanded perlite, glass beads.
Water-retaining agent uses hydroxypropyl methyl cellulose, viscosity 75000-100000mPa.s, and steam-pressing aero-concrete belongs to
Porous material, water imbibition with higher, water-retaining agent have good water-retaining property, guarantee water required for plastering gupsum aquation
Point, water retention >=98%.
Retarder uses protide calcium sulphate retarder SG-12, white powder, and fineness 0.15mm square hole screen tails over≤4.0%,
Retarder is stronger in gypsum crystal adsorption, delays the hydration and hardening of semi-hydrated gypsum, has good deferred action.
Hydrophober use polysiloxanes powder hydrophober, pH value 10-12, fineness be 200 mesh square hole screens tail over≤
2.0%.Hydrophober is easily dispersed, lapping surface, forms network structure, has very strong repulsive interaction to water after solidification.
Rheology modifier uses polyacrylate, is played a role by the entanglement of high molecular polymer strand, reduces stone
Cream crystal shearing force has pseudoplastic rheological ability, has anti-settling and mobility.
Claims (10)
1. a kind of plastering gupsum, which is characterized in that comprise the following components in parts by weight: 50-90 parts of desulfurized gypsum, grey calcium 2-10
Part, 5-10 parts of fine sand, 5-10 parts of steam-pressing aero-concrete waste material, 0.15-0.2 parts of water-retaining agent, 1-1.5 parts of retarder, hydrophober
2-2.5 parts, 0.5-1.5 parts of rheology modifier.
2. plastering gupsum according to claim 1, which is characterized in that comprise the following components in parts by weight: desulfurized gypsum 70
Part, 5 parts of grey calcium, 5-10 parts of fine sand, 5-10 parts of steam-pressing aero-concrete waste material, 0.15-0.2 parts of water-retaining agent, retarder 1-1.5
Part, 2-2.5 parts of hydrophober, 0.5-1.5 parts of rheology modifier.
3. plastering gupsum according to claim 1, it is characterised in that: the water-retaining agent is hydroxypropyl methyl cellulose.
4. plastering gupsum according to claim 1, it is characterised in that: the retarder is protide calcium sulphate retarder.
5. plastering gupsum according to claim 1, it is characterised in that: the hydrophober is polysiloxanes powder hydrophober.
6. plastering gupsum according to claim 1, it is characterised in that: the rheology modifier is polyacrylate.
7. plastering gupsum according to claim 1, it is characterised in that: the desulfurized gypsum be β type, 2h compression strength >=
3.0Kg/㎝2, the presetting period: 6-9min, 0.2mm square hole screen screen over-size≤10.0%.
8. plastering gupsum according to claim 1, it is characterised in that: ash Ca45 μm screen over-size≤10.0%；It is described
The fineness of fine sand is 60-120 mesh.
9. plastering gupsum according to claim 1, it is characterised in that: the steam-pressing aero-concrete waste material is through broken, mistake
Sieve, drying and processing, fineness are that 0.15mm throughput≤2.0%, 4.75mm sieves screen over-size≤2.0%, and moisture content≤2.0% is done
Density is 400-500kg/m3。
10. plastering gupsum according to claim 1, it is characterised in that: the steam-pressing aero-concrete includes following weight
The raw material of part: 40-80 parts of CHARACTERISTICS OF TAILINGS SAND, 5-30 parts of quick lime, 5-30 parts of cement, 5-20 parts of miberal powder, 3-15 parts of gypsum, aluminium powder
0.10-0.35 parts, 1-3 parts of additive；The additive by mass fraction be 1:5 foam stabilizer and sodium methyl silicate mixing and
At.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110526661A (en) * | 2019-09-18 | 2019-12-03 | 贵州西奥建筑节能科技有限公司 | A kind of water-resistant type desulfurization plastering mortar |
| CN111321855A (en) * | 2020-02-26 | 2020-06-23 | 南通职业大学 | Spraying gypsum, preparation method thereof and wall construction process using spraying gypsum |
| CN114956757A (en) * | 2022-05-25 | 2022-08-30 | 成都市易建建筑材料有限公司 | Lightweight gypsum plastering mortar and preparation method thereof |
| CN115784766A (en) * | 2022-11-29 | 2023-03-14 | 科顺民用建材有限公司 | Crop straw type gypsum plastering sound-insulation coating and preparation method and application thereof |
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| CN110526661A (en) * | 2019-09-18 | 2019-12-03 | 贵州西奥建筑节能科技有限公司 | A kind of water-resistant type desulfurization plastering mortar |
| CN111321855A (en) * | 2020-02-26 | 2020-06-23 | 南通职业大学 | Spraying gypsum, preparation method thereof and wall construction process using spraying gypsum |
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| CN114956757B (en) * | 2022-05-25 | 2023-03-14 | 成都市易建建筑材料有限公司 | Lightweight gypsum plastering mortar and preparation method thereof |
| CN115784766A (en) * | 2022-11-29 | 2023-03-14 | 科顺民用建材有限公司 | Crop straw type gypsum plastering sound-insulation coating and preparation method and application thereof |
| CN115784766B (en) * | 2022-11-29 | 2023-11-24 | 科顺民用建材有限公司 | Crop straw type gypsum plastering sound-insulating coating and preparation method and application thereof |
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Application publication date: 20190301 |