CN106904925B - A kind of ardealite based self-leveling material - Google Patents
A kind of ardealite based self-leveling material Download PDFInfo
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- CN106904925B CN106904925B CN201710226715.2A CN201710226715A CN106904925B CN 106904925 B CN106904925 B CN 106904925B CN 201710226715 A CN201710226715 A CN 201710226715A CN 106904925 B CN106904925 B CN 106904925B
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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
- C04B28/142—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
- C04B28/143—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 phosphogypsum
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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
- C04B2111/00017—Aspects relating to the protection of the environment
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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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent 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
- C04B2201/50—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)
- 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 technical field of energy saving and environmental protection, be by the material composition of following weight percent more particularly to a kind of ardealite based self-leveling material: modified ardealite 40%-50%, cement 10%-15%, modified rubber powder 3%-5%, fiber 0.5%-2%, redispersable latex powder 3%-6%, water conservation stabilizer 0.3%-0.8%, water-reducing agent 0.1%-0.4%, moistening flatting agent 0.1%-0.5%, defoaming agent 0.001%-0.005%, surplus are hard material.Ardealite based self-leveling material of the present invention has the characteristics that intensity is high, waterproof performance is good, can also make full use of the wastes such as ardealite, waste old, be conducive to environmental protection.
Description
Technical field
The invention belongs to technical field of energy saving and environmental protection, and in particular to a kind of ardealite based self-leveling material.
Background technique
Ground is an important component of architectural engineering, and Self-leveling technology is a kind of ground construction technology, liquid
Floor material under state trickles automatically after being scattered to ground, and on ground, trickling is to being filled and led up after low-lying, finally by full wafer
Surface current drops down smooth rear static, condensation cure.The levelling technique of Self-leveling saves a large amount of people compared to artificial floor leveling technique
Work, with the continuous improvement of human cost, gravity flowing levelling mortar competitiveness in terms of economy is increasing.Traditional gypsum base is certainly
Levelling material is the related various auxiliary agents of addition using αsemiwatergypsum as main material, such as the preparation of retarder, water-reducing agent, water-retaining agent
Made of a kind of air-setting self-leveling material.Since its water resistance is poor, at high cost, using being subject to certain restrictions.
Ardealite is that wet process manufactures the waste residue being discharged when phosphoric acid in phosphorous chemical industry, and 1 ton of phosphoric acid of every production is (with P2O5Meter) it generates about
4.5~5.5 tons of by-product ardealite, ardealite utilization rate is lower at present.It is most of to be disposed for stockpiling, the accumulation of a large amount of ardealites
Not only land occupation, but also waste of resource endanger wherein the acidity contained and other harmful substances are easy to pollute surrounding enviroment
It is extremely urgent to solve the problems, such as that ardealite accumulates for ecological environment.
In recent years, as private car quantity is increased sharply, accompanying this is the waste tire continually generated, currently, I
The waste tire that state generates reaches several hundred million, if utilization is not added in so many waste old, there is also land occupation resource, harm
The problem of ecological environment.
Summary of the invention
The present invention in view of the above-mentioned problems, providing one kind using ardealite is main substrate, waste rubber powder as auxiliary material, and
Gypsum-based self-leveling material with preferable waterproof performance.
In order to achieve the above objectives, the present invention uses following technical scheme, and a kind of ardealite based self-leveling material, is by following
The material composition of weight percent:
Modified ardealite: 40%-50%
Cement: 10%-15%
Modified rubber powder: 3%-5%
Fiber: 0.5%-2%
Redispersable latex powder: 3%-6%
It is retained stabilizer: 0.3%-0.8%
Water-reducing agent: 0.1%-0.4%
Moistening flatting agent: 0.1%-0.5%
Defoaming agent: 0.001%-0.005%
Surplus is hard material.
The preparation method of the modified ardealite is: by original state ardealite with account for changing for ardealite total weight 4%-6%
Property agent be aged after mixing reaction 24-28h, then thermal activation 4h under the conditions of 140 DEG C, is down to after constant temperature in planetary mill
Middle grinding 2min was both obtained.
The modifying agent is made of quick lime and compound modifying agent according to weight ratio 10-20:1.
Preferably, the compound modifying agent is sodium polyphosphate, stearic acid, itaconic acid, sodium ammonium triacetate, ethylenediamine tetramethyl
Pitch one of sodium phosphate and diethanol amine or more than one.
It is furthermore preferred that the compound modifying agent is by stearic acid, itaconic acid and sodium ammonium triacetate according to weight ratio 1:1:1 group
At.
The cement is PO42.5 cement.
The modified rubber powder refer to by rubber powder that fineness is 50-70 mesh mass fraction be 10% sodium hydroxide it is molten
It is cleaned after impregnating 30-60min in liquid with clear water, then dries and obtain at 60-80 DEG C.
The fiber refers to one of short nylon fiber, basalt fibre, aromatic polyamide fibre.
Preferably, the fiber refers to that diameter is 10mm-20um, and length is the basalt fibre of 6mm-15mm.
The redispersable latex powder refers to vinyl acetate and ethylene higher fatty acids copolymerization rubber powder, acrylate and benzene second
Alkene is copolymerized rubber powder, ethylene and one of vinyl chloride and vinyl laurate ternary polymerization rubber powder.
The water conservation stabilizer refers to one in methyl hydroxyethylcellulose ether, methylhydroxypropylcellulose ether and welan gum
Kind.
The water-reducing agent is powdery polycarboxylic acid water-reducing agent.
The moistening flatting agent is polyether-modified dimethyl silicone polymer or organic silicon acrylic ester.
The defoaming agent is ethylenedistearamide or tributyl phosphate.
The hard material is one of steel slag or quartz sand.
Preferably, the quartzy grain fineness number is 100-200 mesh.
The surface of ardealite particle is adsorbed in the present invention after compound modifying agent incorporation, thus it is possible to vary when gypsum crystallization is grown
Environment, prevent crystal form to longitudinal development, the crystal habit of product promoted to convert to ideal form；Self-leveling material is with thin layer
It spreads out and puts in substrate surface, thinner thickness, ground layer can absorb many moisture, and large contact area with air, easily hard in slurry
It dries out before change, mobile performance is caused to reduce, or even influence is normal hydrated, water conservation stabilizer can make system moisture excessive
Be lost, keep normal hydrated and workability, can also improve viscosity coefficient, improve system stability, reduce laminated segregation,
Grain sedimentation, bleeding phenomena such as, prevent self-leveling material because dehydration is too fast and cause insufficient material aquation, surface shedding, do
The problems such as splitting；Sodium hydroxide solution can make to dispel the rubber additives such as the zinc stearate on rubber powder surface, make itself and gypsum base
The binding force of material is stronger, rubber powder have retardance, alleviate self-leveling material system in as entringite formation and caused by it is swollen
It is swollen, the water resistance of self-leveling material can also be improved；Moistening flatting agent can reduce system surface tension, increase system to substrate
Wetting ability and the flowing levelability of itself；Latex powder can react after meeting water generates continuous film, is formed with gypsum slurry
The mixture of interpenetrating body plays cementation, and transition region can be made more fine and close, the impermeability of material is greatly improved, in addition
Emulsoid-film has hydrophobic effect, is improved the hydrophobic performance of material；Gypsum and cement in system can aquation generation calcium
Aluminite and hydrated calcium silicate gel, with the progress of aquation, entringite is continuously increased with hydrated calcium silicate gel, hardenite intensity
It is continuously improved, ettringite plays skeleton function in hardenite, and hydrated calcium silicate gel is then distributed in gap, to reduction hole
Gap rate, the entringite of a large amount of hydraulicitys, hydrated calcium silicate gel are formed, the erosion work that can be hindered or weaken water to Self-leveling system
With.
Beneficial effects of the present invention mainly have two o'clock:
(1) wastes such as ardealite, waste old can be made full use of, environmental protection is conducive to.
(2)) rational proportion of various raw material makes ardealite based self-leveling material of the present invention have intensity height, waterproofness
Can be good the features such as.
Specific embodiment
In order to further illustrate the present invention, below with reference to embodiment to ardealite based self-leveling material provided by the invention into
Row describe in detail, but it is to be understood that these description only for further illustrate the features and advantages of the present invention rather than it is right
The limitation that the invention patent requires.
Embodiment 1
A kind of ardealite based self-leveling material is by the material composition of following weight percent: modified ardealite 40%,
Cement 10%, modified rubber powder 3%, fiber 0.5%, redispersable latex powder 3%, water conservation stabilizer 0.3%, water-reducing agent
0.1%, moistening flatting agent 0.1%, defoaming agent 0.001%, surplus are hard material；
The preparation method of the modified ardealite is: by original state ardealite and the modifying agent for accounting for ardealite total weight 4%
For 24 hours, then thermal activation 4h under the conditions of 140 DEG C, is down to after constant temperature the grinding in planetary mill for ageing reaction after mixing
2min was both obtained；
The modifying agent is made of quick lime and compound modifying agent according to weight ratio 10:1；
The compound modifying agent is sodium polyphosphate；
The cement is PO42.5 cement；
The sodium hydroxide solution that it is 10% in mass fraction by the rubber powder that fineness is 50 mesh that the modified rubber powder, which refers to,
It is cleaned after middle immersion 30min with clear water, then dries and obtain at 60 DEG C；
The fiber refers to short nylon fiber；
The redispersable latex powder refers to that vinyl acetate and ethylene higher fatty acids are copolymerized rubber powder；
The water conservation stabilizer refers to methyl hydroxyethylcellulose ether；
The water-reducing agent is powdery polycarboxylic acid water-reducing agent；
The moistening flatting agent is polyether-modified dimethyl silicone polymer；
The defoaming agent is ethylenedistearamide；
The hard material is steel slag.
Embodiment 2
A kind of ardealite based self-leveling material is by the material composition of following weight percent: modified ardealite 50%,
Cement 15%, modified rubber powder 5%, fiber 2%, redispersable latex powder 6%, water conservation stabilizer 0.8%, water-reducing agent 0.4%,
Moistening flatting agent 0.5%, defoaming agent 0.005%, surplus are hard material；
The preparation method of the modified ardealite is: by original state ardealite and the modifying agent for accounting for ardealite total weight 6%
Ageing reaction 28h after mixing, then thermal activation 4h under the conditions of 140 DEG C, is down to after constant temperature the grinding in planetary mill
2min was both obtained；
The modifying agent is made of quick lime and compound modifying agent according to weight ratio 20:1；
The compound modifying agent is made of ethylenediamine tetraacetic methene sodium phosphate and diethanol amine according to weight ratio 1:1；
The cement is PO42.5 cement；
The sodium hydroxide solution that it is 10% in mass fraction by the rubber powder that fineness is 70 mesh that the modified rubber powder, which refers to,
It is cleaned after middle immersion 60min with clear water, then dries and obtain at 80 DEG C；
The fiber refers to aromatic polyamide fibre；
The redispersable latex powder refers to acrylate and styrene copolymerized rubber powder；
The water conservation stabilizer is methylhydroxypropylcellulose ether；
The water-reducing agent is powdery polycarboxylic acid water-reducing agent；
The moistening flatting agent is organic silicon acrylic ester；
The defoaming agent is tributyl phosphate；
The hard material is the quartz sand that steel fineness is 100 mesh.
Embodiment 3
A kind of ardealite based self-leveling material is by the material composition of following weight percent: modified ardealite 45%,
Cement 12%, modified rubber powder 4%, fiber 1%, redispersable latex powder 4%, water conservation stabilizer 0.5%, water-reducing agent 0.3%,
Moistening flatting agent 0.4%, defoaming agent 0.003%, surplus are hard material；
The preparation method of the modified ardealite is: by original state ardealite and the modifying agent for accounting for ardealite total weight 5%
Ageing reaction 25h after mixing, then thermal activation 4h under the conditions of 140 DEG C, is down to after constant temperature the grinding in planetary mill
2min was both obtained；
The modifying agent is made of quick lime and compound modifying agent according to weight ratio 15:1；
The compound modifying agent is made of stearic acid, itaconic acid and sodium ammonium triacetate according to weight ratio 1:1:1；
The cement is PO42.5 cement；
The sodium hydroxide solution that it is 10% in mass fraction by the rubber powder that fineness is 60 mesh that the modified rubber powder, which refers to,
It is cleaned after middle immersion 50min with clear water, then dries and obtain at 70 DEG C；
The fiber refers to that diameter is 10mm-20um, and length is the basalt fibre of 6mm-15mm；
The redispersable latex powder is ethylene and vinyl chloride and vinyl laurate ternary polymerization rubber powder；
The water conservation stabilizer is welan gum；
The water-reducing agent is powdery polycarboxylic acid water-reducing agent；
The moistening flatting agent is polyether-modified dimethyl silicone polymer；
The defoaming agent is ethylenedistearamide；
The hard material is the quartz sand that fineness is 150 mesh.
Embodiment 4
A kind of ardealite based self-leveling material is by the material composition of following weight percent: modified ardealite 48%,
Cement 13%, modified rubber powder 4%, fiber 1.5%, redispersable latex powder 5%, water conservation stabilizer 0.6%, water-reducing agent
0.3%, moistening flatting agent 0.2%, defoaming agent 0.003%, surplus are hard material；
The preparation method of the modified ardealite is: by original state ardealite and the modification for accounting for ardealite total weight 4.5%
Agent is aged reaction 27h after mixing, and then thermal activation 4h under the conditions of 140 DEG C, is down to after constant temperature the powder in planetary mill
2min is ground both to obtain；
The modifying agent is made of quick lime and compound modifying agent according to weight ratio 12:1；
The compound modifying agent is ethylenediamine tetraacetic methene sodium phosphate；
The cement is PO42.5 cement；
The sodium hydroxide solution that it is 10% in mass fraction by the rubber powder that fineness is 65 mesh that the modified rubber powder, which refers to,
It is cleaned after middle immersion 40min with clear water, then dries and obtain at 70 DEG C；
The fiber refers to short nylon fiber；
The redispersable latex powder refers to acrylate and styrene copolymerized rubber powder；
The water conservation stabilizer refers to methylhydroxypropylcellulose ether；
The water-reducing agent is powdery polycarboxylic acid water-reducing agent；
The moistening flatting agent is organic silicon acrylic ester；
The defoaming agent is tributyl phosphate；
The hard material is steel slag.
Embodiment 5
A kind of ardealite based self-leveling material is by the material composition of following weight percent: modified ardealite 48%,
Cement 13%, modified rubber powder 3.8%, fiber 1.2%, redispersable latex powder 5%, water conservation stabilizer 0.6%, water-reducing agent
0.3%, moistening flatting agent 0.3%, defoaming agent 0.003%, surplus are hard material.
Comparative example 1
A kind of ardealite based self-leveling material is by the material composition of following weight percent: ardealite 45%, cement
12%, modified rubber powder 4%, fiber 1%, redispersable latex powder 4%, water conservation stabilizer 0.5%, water-reducing agent 0.3%, wetting
Levelling agent 0.4%, defoaming agent 0.003%, surplus are hard material；
The ardealite is original state ardealite；
The cement is PO42.5 cement；
The sodium hydroxide solution that it is 10% in mass fraction by the rubber powder that fineness is 60 mesh that the modified rubber powder, which refers to,
It is cleaned after middle immersion 50min with clear water, then dries and obtain at 70 DEG C；
The fiber refers to that diameter is 10mm-20um, and length is the basalt fibre of 6mm-15mm；
The redispersable latex powder is ethylene and vinyl chloride and vinyl laurate ternary polymerization rubber powder；
The water conservation stabilizer is welan gum；
The water-reducing agent is powdery polycarboxylic acid water-reducing agent；
The moistening flatting agent is polyether-modified dimethyl silicone polymer；
The defoaming agent is ethylenedistearamide；
The hard material is the quartz sand that fineness is 150 mesh.
Comparative example 2
A kind of ardealite based self-leveling material is by the material composition of following weight percent: modified ardealite 45%,
Cement 12%, rubber powder 4%, fiber 1%, redispersable latex powder 4%, water conservation stabilizer 0.5%, water-reducing agent 0.3%, wetting
Levelling agent 0.4%, defoaming agent 0.003%, surplus are hard material；
The preparation method of the modified ardealite is: by original state ardealite and the modifying agent for accounting for ardealite total weight 5%
Ageing reaction 25h after mixing, then thermal activation 4h under the conditions of 140 DEG C, is down to after constant temperature the grinding in planetary mill
2min was both obtained；
The modifying agent is made of quick lime and compound modifying agent according to weight ratio 15:1；
The compound modifying agent is made of stearic acid, itaconic acid and sodium ammonium triacetate according to weight ratio 1:1:1；
The cement is PO42.5 cement；
It is that 60 mesh obtain that the rubber powder, which is by waste tire grinding to fineness,；
The fiber refers to that diameter is 10mm-20um, and length is the basalt fibre of 6mm-15mm；
The redispersable latex powder is ethylene and vinyl chloride and vinyl laurate ternary polymerization rubber powder；
The water conservation stabilizer is welan gum；
The water-reducing agent is powdery polycarboxylic acid water-reducing agent；
The moistening flatting agent is polyether-modified dimethyl silicone polymer；
The defoaming agent is ethylenedistearamide；
The hard material is the quartz sand that fineness is 150 mesh.
Comparative example 3
A kind of ardealite based self-leveling material is by the material composition of following weight percent: modified ardealite 45%,
Cement 12%, modified rubber powder 4%, fiber 1%, redispersable latex powder 4%, water conservation stabilizer 0.5%, water-reducing agent 0.3%,
Defoaming agent 0.003%, surplus are hard material；
The preparation method of the modified ardealite is: by original state ardealite and the modifying agent for accounting for ardealite total weight 5%
Ageing reaction 25h after mixing, then thermal activation 4h under the conditions of 140 DEG C, is down to after constant temperature the grinding in planetary mill
2min was both obtained；
The modifying agent is made of quick lime and compound modifying agent according to weight ratio 15:1；
The compound modifying agent is made of stearic acid, itaconic acid and sodium ammonium triacetate according to weight ratio 1:1:1；
The cement is PO42.5 cement；
The sodium hydroxide solution that it is 10% in mass fraction by the rubber powder that fineness is 60 mesh that the modified rubber powder, which refers to,
It is cleaned after middle immersion 50min with clear water, then dries and obtain at 70 DEG C；
The fiber refers to that diameter is 10mm-20um, and length is the basalt fibre of 6mm-15mm；
The redispersable latex powder is ethylene and vinyl chloride and vinyl laurate ternary polymerization rubber powder；
The water conservation stabilizer is welan gum；
The water-reducing agent is powdery polycarboxylic acid water-reducing agent；
The defoaming agent is ethylenedistearamide；
The hard material is the quartz sand that fineness is 150 mesh.
Performance test
Reference standard JC/T1023-2007 " gypsum based self-leveling mortar " is to 1-5 of the embodiment of the present invention and comparative example 1-3
Some main performances of self-leveling material be tested, as a result see the table below 1.
1 gravity flowing levelling mortar performance of table
Claims (7)
1. a kind of ardealite based self-leveling material, which is characterized in that be by the material composition of following weight percent: modified phosphorus
Gypsum 40%-50%, cement 10%-15%, modified rubber powder 3%-5%, fiber 0.5%-2%, redispersable latex powder
3%-6%, water conservation stabilizer 0.3%-0.8%, water-reducing agent 0.1%-0.4%, moistening flatting agent 0.1%-0.5%, defoaming agent
0.001%-0.005%, surplus are hard material；
The modified ardealite is that original state ardealite and the modifying agent that accounts for ardealite total weight 4%-6% is old after mixing
Change reaction 24-28h, then thermal activation 4h under the conditions of 140 DEG C, is down to after constant temperature and makes after grinding 2min in planetary mill
, wherein the modifying agent is made of quick lime and compound modifying agent according to weight ratio 10-20:1, the compound modifying agent
For one of sodium polyphosphate, stearic acid, itaconic acid, sodium ammonium triacetate, ethylenediamine tetraacetic methene sodium phosphate and diethanol amine or
More than one.
2. ardealite based self-leveling material according to claim 1, which is characterized in that the modified rubber powder is by fineness
For 50-70 mesh rubber powder impregnate 30-60min in the sodium hydroxide solution that mass fraction is 10% after cleaned with clear water, so
It is made after being dried at 60-80 DEG C afterwards.
3. ardealite based self-leveling material according to claim 1, which is characterized in that the fiber be short nylon fiber,
One of basalt fibre, aromatic polyamide fibre.
4. ardealite based self-leveling material according to claim 1, which is characterized in that the redispersable latex powder is vinegar
Sour ethylene and ethylene higher fatty acids copolymerization rubber powder, acrylate and styrene copolymerized rubber powder, ethylene and vinyl chloride and lauric acid
One of vinyl acetate ternary polymerization rubber powder.
5. ardealite based self-leveling material according to claim 1, which is characterized in that the water conservation stabilizer is methyl hydroxyl
One of cellulose ether, methylhydroxypropylcellulose ether and welan gum.
6. ardealite based self-leveling material according to claim 1, which is characterized in that the moistening flatting agent changes for polyethers
Property dimethyl silicone polymer or organic silicon acrylic ester.
7. ardealite based self-leveling material according to claim 1, which is characterized in that the defoaming agent is distearyl second
Diamines or tributyl phosphate.
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| CN107162553A (en) * | 2017-07-19 | 2017-09-15 | 合肥广民建材有限公司 | A kind of brushing gypsum and preparation method thereof |
| CN110436805B (en) * | 2018-05-04 | 2021-09-21 | 北新集团建材股份有限公司 | Caulking gypsum powder, preparation method thereof and phosphogypsum harmless treatment method |
| CN113372079A (en) * | 2021-04-30 | 2021-09-10 | 河南建筑材料研究设计院有限责任公司 | High-wear-resistance gypsum-based self-leveling mortar and preparation method thereof |
| CN114573314B (en) * | 2021-06-07 | 2023-04-25 | 瓮福化工科技有限公司 | Phosphogypsum-based sound insulation self-leveling mortar and application thereof |
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| CN103288410A (en) * | 2013-05-17 | 2013-09-11 | 武汉理工大学 | Alpha high-strength gypsum based self-leveling material prepared by adopting phosphogypsum and production process thereof |
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| CN102557555A (en) * | 2011-12-28 | 2012-07-11 | 河南大学 | Mineral fiber-modified flexible rubber concrete |
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| CN103288410A (en) * | 2013-05-17 | 2013-09-11 | 武汉理工大学 | Alpha high-strength gypsum based self-leveling material prepared by adopting phosphogypsum and production process thereof |
| CN104926239A (en) * | 2015-06-22 | 2015-09-23 | 内蒙古科技大学 | Waste rubber powder mixed model steel fiber reinforced lightweight aggregate concrete and preparation method thereof |
| CN105062004A (en) * | 2015-08-21 | 2015-11-18 | 卡本复合材料（天津）有限公司 | Epoxy grouting material for glass fiber sleeve reinforcing system and preparing method of epoxy grouting material |
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| CN106904925A (en) | 2017-06-30 |
| CN109721321A (en) | 2019-05-07 |
| CN109721321B (en) | 2021-07-13 |
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