CN103288410A - Alpha high-strength gypsum based self-leveling material prepared by adopting phosphogypsum and production process thereof - Google Patents

Alpha high-strength gypsum based self-leveling material prepared by adopting phosphogypsum and production process thereof Download PDF

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CN103288410A
CN103288410A CN2013101844173A CN201310184417A CN103288410A CN 103288410 A CN103288410 A CN 103288410A CN 2013101844173 A CN2013101844173 A CN 2013101844173A CN 201310184417 A CN201310184417 A CN 201310184417A CN 103288410 A CN103288410 A CN 103288410A
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strength gypsum
leveling
self
phosphogypsum
agent
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CN103288410B (en
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马保国
卢斯文
茹晓红
郅真真
李玉博
蹇守卫
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武汉理工大学
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Abstract

The invention relates to an alpha high-strength gypsum based self-leveling material prepared by adopting phosphogypsum and a production process thereof. The material comprises the following components in percentage by weight: 40-60% of alpha high-strength gypsum powder, 30-50% of aggregates, 1-4% of cement, 1-4% of fly ash, 2-4% of re-dispersible rubber powder, 0.1-0.3% of retarder, 0.2-0.75% of water reducing agent, 0.1-0.25% of water-retaining agent, 0.1-0.4% of air entraining agent and 0.05-0.15% of antifoaming agent. The production process comprises the steps of uniformly mixing the components and obtaining the alpha high-strength gypsum based self-leveling material. The alpha high-strength gypsum based self-leveling material disclosed by the invention has the advantages that the requirements of JC/T1023-2007 Gypsum based Self-leveling Mortar are met and the requirements on the 30min fluidity loss, the initial setting time, the final setting time, the breaking strength, the compressive strength and the shrinking rate are met.

Description

Adopt α high strength gypsum based self-leveling material and the production technique thereof of phosphogypsum preparation
Technical field
The invention belongs to building material technical field, concrete relate to a kind of α high strength gypsum based self-leveling material and production technique thereof that adopts the phosphogypsum preparation.
Background technology
Phosphogypsum is that what to be discharged in the Wet-process Phosphoric Acid Production process is the throw out of main component with the terra alba, is topmost industry byproduct during phosphorous chemical industry is produced.Generally, produce 1 ton of P 2O 5Will discharge 4.5~5.5 tons of phosphogypsums.It is acid that the pH value of phosphogypsum is, and its main component is terra alba, but wherein contains impurity such as certain phosphorus, fluorine, organism, and complex chemical composition is not well utilized at present, and major part is that air storage.In recent years, along with the continuous development of phosphatization industry, the quantity discharged of China's phosphogypsum increases day by day, and China's phosphogypsum generation was about 5,000 ten thousand tons in 2009, and the accumulative total volume of cargo in storage surpasses 200,000,000 tons, has taken a large amount of land resources.At present, domestic phosphogypsum is mainly for the production of low value-added products such as cement setting retarder, building gypsum plaster, gypsum brick or building blocks, so utilizing high value-added products such as the superior Thistle board of phosphogypsum production over-all properties and gypsum base self-leveling material is important channel and the research direction of phosphogypsum recycling, has wide commercial promise and social effect.
The gypsum base self-leveling material is a kind of dry-mix that is specifically designed to floor leveling that is disposed meticulously, mixes and make in factory by gypsum material, extraordinary aggregate and various architectural chemistry additive.At present, the established corresponding product standard of China is JC/T1023-2007 " gypsum base gravity flowing levelling mortar ".China utilizes the patent documentation of gypsum production gypsum base self-leveling material aspect to mainly contain: 1) Chinese patent CN102190470A has announced a kind of two water desulfurization α high strength gypsum based self-leveling mortar and production methods thereof, its technology is: at first the water of 80~100% two water desulfurated plasters and 10~20% is made slip and added in the autoclave, add Tai-Ace S 150 and sodium alkyl benzene sulfonate simultaneously as medium crystallization agent, be raised to certain temperature, insulation for some time, reaction makes α high strength gypsum slurry, and slurry makes α high strength gypsum powder through oven dry; Again with α high strength gypsum powder with gather materials, exciting agent, water-holding agent, binding agent, water reducer, defoamer, auxiliary agent mix by proportioning, metering, make two water desulfurization α high strength gypsum based self-leveling mortars, what this method adopted is that the pressurized water solution method prepares α high strength gypsum powder; 2) Chinese patent 201110039548.3 has been announced a kind of phosphogypsum self-leveling material, but wherein main component is to adopt the αBan Shuishigao of plaster of paris preparation, in addition, its modified ardealite is the temperature lower calcination 100~300min at 170 ℃ ± 10 ℃, the β semi-hydrated gypsum that makes it dewater fully and obtain.The used alpha type high-strength gypsum of patent CN102190470A is to carry out under autoclaved condition, needs higher facility investment and steam source; Only having utilized the phosphogypsum of small part in the patent 201110039548.3, is to adopt the high-temperature calcination prepared to become the β semi-hydrated gypsum, does not take full advantage of the phosphogypsum resource, and high-temperature calcination is to the equipment requirements height, and can consume a large amount of energy.Therefore, adopt the constant pressure hydro-thermal method that phosphogypsum is prepared into the alpha type high-strength gypsum powder, the production technique that is used for being mixed with the alpha type high-strength gypsum based self-leveling material has the characteristics of energy-conserving and environment-protective, utilize phosphogypsum in a large number, improve its added value, the self-leveling material cost of producing is low, intensity is high, good fluidity.So far domesticly do not see the patent for preparing α high strength gypsum based self-leveling material with phosphogypsum as yet.
Summary of the invention
Technical problem to be solved by this invention is that a kind of α high strength gypsum based self-leveling material and production technique thereof that adopts phosphogypsum preparation is provided at above-mentioned prior art, this technology sharp useless high, cost is low, the products obtained therefrom performance is good, has realized energy-conserving and environment-protective.
The present invention solves the problems of the technologies described above the technical scheme that adopts: adopt the α high strength gypsum based self-leveling material of phosphogypsum preparation, its feed composition percentage ratio is by weight counted:
α high strength gypsum powder: 40~60%; Gather materials: 30~50%; Cement: 1~4%; Flyash: 1~4%;
Re-dispersible glue powder: 2~4%; Retardant: 0.1~0.3%; Water reducer: 0.2~0.75%; Water-holding agent: 0.1~0.25%;
Air entrapment agent: 0.1~0.4%; Defoamer: 0.05~0.15%.
Press such scheme, the preparation method of described α high strength gypsum powder is: material modification phosphogypsum, water, medium crystallization agent A and medium crystallization agent B are dropped in the reactor, stirring and evenly mixing is made slip, heat to 80~100 ℃, be incubated 4~24h then, carry out the constant pressure hydro-thermal reaction, make the dihydrate gypsum dehydration be transformed into the α high strength gypsum; Through hot wash, after the solid-liquid separation, obtain α high strength gypsum slurry then, drying makes α high strength gypsum powder under 90~100 ℃ of temperature rapidly; Described raw material percentage ratio is by weight counted modified ardealite: 35~60%; Water: 28~50%; Medium crystallization agent A:7~15%; Medium crystallization agent B:0.01~0.5%.
Press such scheme, described modified ardealite is the byproduct that phosphoric acid by wet process technology emits, through washing after the lime milk solution modification, flotation to solvable phosphorus content be not more than 0.6%, solvable fluorine content be not more than 0.4% and organic content be not more than 0.3%, dehydration obtains.
Press such scheme, described medium crystallization agent A is calcium chloride.
Press such scheme, described medium crystallization agent B is tartrate.
Press such scheme, described gathering materials is thin river sand, and fineness modulus is controlled 2.2~2.4; Described cement is aluminosulfate cement; Described re-dispersible glue powder is the powder that vinyl acetate between to for plastic and vinyl monomer copolymerization obtain; Described retardant is any one in citric acid, Citrate trianion, tartrate, polyphosphoric acid salt and the SC retardant; Described water reducer is any one in poly carboxylic acid dry powder water reducer, naphthalene water reducer or the sulfonated melamine water reducer; Described water-holding agent is any one in methylcellulose gum, Natvosol or the carboxymethyl cellulose; Described air entrapment agent is alkyls or alkylated aromatic sulfonic acid class air entrapment agent; Described defoamer is organic silicone oil or nonionogenic tenside.
The production technique of the α high strength gypsum based self-leveling material of described employing phosphogypsum preparation, it includes following steps: according to α high strength gypsum powder: 40~60%; Gather materials: 30~50%; Cement: 1~4%; Flyash: 1~4%; Re-dispersible glue powder: 2~4%; Retardant: 0.1~0.3%; Water reducer: 0.2~0.75%; Water-holding agent: 0.1~0.25%; Air entrapment agent: 0.1~0.4%; Defoamer: 0.05~0.15% gets material; With raw material blending, namely make α high strength gypsum based self-leveling material then; Wherein, the preparation method of described α high strength gypsum powder is: material modification phosphogypsum, water, medium crystallization agent A and medium crystallization agent B are dropped in the reactor, stirring and evenly mixing is made slip, heat to 80~100 ℃, be incubated 4~24h then, carry out the constant pressure hydro-thermal reaction, make the dihydrate gypsum dehydration be transformed into the α high strength gypsum; Through hot wash, after the solid-liquid separation, obtain α high strength gypsum slurry then, drying makes α high strength gypsum powder under 90~100 ℃ of temperature rapidly; Described raw material percentage ratio is by weight counted modified ardealite: 35~60%; Water: 28~50%; Medium crystallization agent A:7~15%; Medium crystallization agent B:0.01~0.5%.
Advantage of the present invention is: the α high strength gypsum based self-leveling material of gained of the present invention is through detecting, reach JC/T1023-2007 " gypsum base gravity flowing levelling mortar " requirement, the loss of 30min degree of mobilization, presetting period, final setting time, folding strength, ultimate compression strength, shrinking percentage all meet the requirements.Compare with existing gypsum base self-leveling material, technology of the present invention has been utilized the industry byproduct phosphogypsum in a large number, environment when changing the semi-hydrated gypsum crystallization by adding two kinds of medium crystallization agents, impel crystal habit to transform to short cylinder, preparation α high strength gypsum powder under the so gentle condition of constant pressure hydro-thermal reaction is as the base-material of α high strength gypsum based self-leveling material.Crystal formation is short cylinder, so greatly reduce water requirement, intensity improves greatly; Replace ordinary Portland cement with aluminosulfate cement, improved the intensity in early stage of material, thereby guaranteed construction speed; Increase the ball effect by adding mineral additive flyash, thereby improve its flowability; Improve the physicals of material by adding chemical admixtures such as retardant, water reducer, air entrapment agent, such as, control time of coagulation reduce water consumption, improve mobile.This production technique has not only prepared the self-leveling material that a kind of performance is good, added value is high, but also has utilized the trade waste phosphogypsum greatly, has solved a hang-up of phosphorus chemical industry.
Embodiment
In order to understand the present invention better, further illustrate content of the present invention below in conjunction with embodiment, but content of the present invention not only is confined to the following examples.
Embodiment 1:
Adopt phosphogypsum to prepare the production technique of α high strength gypsum based self-leveling material, its each component proportioning is as follows:
1) make α high strength gypsum powder by phosphogypsum:
Modified ardealite: 60%; Water: 29.6%; Calcium chloride: 10%; Tartrate: 0.4%;
According to above proportioning raw material is dropped in the reactor, stirring and evenly mixing is made slip, heats to 95 ℃, is incubated 5h then, carries out the constant pressure hydro-thermal reaction, makes the dihydrate gypsum dehydration be transformed into the α high strength gypsum; Through 90 ℃ of hot washes, after the solid-liquid separation, obtain α high strength gypsum slurry then, make α high strength gypsum powder 100 ℃ of following dryings rapidly;
2) make the gypsum base self-leveling material with α high strength gypsum powder:
α high strength gypsum powder: 60%; Thin river sand: 30.45%; Aluminosulfate cement: 3%; Flyash: 3%; Re-dispersible glue powder: 3%; Citric acid: 0.1%; Sulfonated melamine water reducer: 0.2%; Methylcellulose gum: 0.1%; Sodium dodecylbenzene sulfonate: 0.1%; Organic silicone oil: 0.05%;
Wherein, modified ardealite is the byproduct that phosphoric acid by wet process technology emits, through washing after the lime milk solution modification, flotation to solvable phosphorus content be 0.01%, solvable fluorine content be 0.01% and organic content be 0.01%, the phosphogypsum that dehydration obtains, gather materials and be thin river sand, fineness modulus control is 2.2~2.4, and the flyash size is controlled between 0.08~0.12mm.Re-dispersible glue powder is the powder that vinyl acetate between to for plastic and vinyl monomer copolymerization obtain, and mixes according to above proportioning, namely makes α high strength gypsum based self-leveling material, then, and by constructing behind water-cement ratio 0.45 poach.Through detecting, the performance index of this material can satisfy the every requirement among the JC/T1023-2007 " gypsum base gravity flowing levelling mortar ".
Embodiment 2:
Adopt phosphogypsum to prepare the production technique of α high strength gypsum based self-leveling material, its each component proportioning is as follows:
1) makes α high strength gypsum powder by phosphogypsum: (adjust following each labeled data in bound, mark is blue)
Modified ardealite: 50%; Water: 39.5%; Calcium chloride: 10%; Tartrate: 0.5%;
According to above proportioning raw material is dropped in the reactor, stirring and evenly mixing is made slip, heats to 98 ℃, is incubated 4h then, carries out the constant pressure hydro-thermal reaction, makes the dihydrate gypsum dehydration be transformed into the α high strength gypsum; Through 95 ℃ of hot washes, after the solid-liquid separation, obtain α high strength gypsum slurry then, make α high strength gypsum powder 95 ℃ of following dryings rapidly;
2) make the gypsum base self-leveling material with α high strength gypsum powder:
α high strength gypsum powder: 50%; Thin river sand: 39.1%; Aluminosulfate cement: 3%; Flyash: 3%; Re-dispersible glue powder: 4%; Citric acid: 0.15%; FDN naphthalene water reducer: 0.3%; Methylcellulose gum: 0.15%; Sodium dodecylbenzene sulfonate: 0.2%; Organic silicone oil: 0.1%;
Wherein, modified ardealite is the byproduct that phosphoric acid by wet process technology emits, through washing after the lime milk solution modification, flotation to solvable phosphorus content be 0.14%, solvable fluorine content be 0.12% and organic content be 0.08%, the phosphogypsum that dehydration obtains, gather materials and be thin river sand, fineness modulus control is 2.2~2.4, and the flyash size is controlled between 0.08~0.12mm.Re-dispersible glue powder is the powder that vinyl acetate between to for plastic and vinyl monomer copolymerization obtain, and mixes according to above proportioning, namely makes α high strength gypsum based self-leveling material, then, and by constructing behind water-cement ratio 0.44 poach.Through detecting, the performance index of this material can satisfy the every requirement among the JC/T1023-2007 " gypsum base gravity flowing levelling mortar ".
Embodiment 3:
Adopt phosphogypsum to prepare the production technique of α high strength gypsum based self-leveling material, its each component proportioning is as follows:
1) make α high strength gypsum powder by phosphogypsum:
Modified ardealite: 40%; Water: 44.8%; Calcium chloride: 15%; Tartrate: 0.2%;
According to above proportioning raw material is dropped in the reactor, stirring and evenly mixing is made slip, heats to 92 ℃, is incubated 6h then, carries out the constant pressure hydro-thermal reaction, makes the dihydrate gypsum dehydration be transformed into the α high strength gypsum; Through 85 ℃ of hot washes, after the solid-liquid separation, obtain α high strength gypsum slurry then, make α high strength gypsum powder 92 ℃ of following dryings rapidly;
2) make the gypsum base self-leveling material with α high strength gypsum powder:
α high strength gypsum powder: 50%; Thin river sand: 38.95%; Aluminosulfate cement: 4%; Flyash: 4%; Re-dispersible glue powder: 2%; SC retardant: 0.2%; FDN naphthalene water reducer: 0.4%; Natvosol: 0.1%; Sodium dodecylbenzene sulfonate: 0.3%; Organic silicone oil: 0.05%;
Modified ardealite is the byproduct that phosphoric acid by wet process technology emits, through washing after the lime milk solution modification, flotation to solvable phosphorus content be 0.38%, solvable fluorine content be 0.25% and organic content be 0.16%, the phosphogypsum that dehydration obtains, gather materials and be thin river sand, fineness modulus control is 2.2~2.4, and the flyash size is controlled between 0.08~0.12mm.Re-dispersible glue powder is the powder that vinyl acetate between to for plastic and vinyl monomer copolymerization obtain, and mixes according to above proportioning, namely makes α high strength gypsum based self-leveling material, then, and by constructing behind water-cement ratio 0.42 poach.Through detecting, the performance index of this material can satisfy the every requirement among the JC/T1023-2007 " gypsum base gravity flowing levelling mortar ".
Embodiment 4:
Adopt phosphogypsum to prepare the production technique of α high strength gypsum based self-leveling material, its each component proportioning is as follows:
1) make α high strength gypsum powder by phosphogypsum:
Modified ardealite: 50%; Water: 39.9%; Calcium chloride: 10%; Tartrate: 0.1%;
According to above proportioning raw material is dropped in the reactor, stirring and evenly mixing is made slip, heats to 90 ℃, is incubated 7h then, carries out the constant pressure hydro-thermal reaction, makes the dihydrate gypsum dehydration be transformed into the α high strength gypsum; Through 80 ℃ of hot washes, after the solid-liquid separation, obtain α high strength gypsum slurry then, make α high strength gypsum powder 90 ℃ of following dryings rapidly;
2) make the gypsum base self-leveling material with α high strength gypsum powder:
α high strength gypsum powder: 40%; Thin river sand: 47.2%; Aluminosulfate cement: 4%; Flyash: 4%; Re-dispersible glue powder: 4%; Tripoly phosphate sodium STPP: 0.3%; Poly carboxylic acid dry powder water reducer: 0.2%; Methylcellulose gum: 0.15%; Sodium lauryl sulphate K12:0.1%; Organic silicone oil: 0.05%;
Modified ardealite is the byproduct that phosphoric acid by wet process technology emits, through washing after the lime milk solution modification, flotation to solvable phosphorus content be 0.43%, solvable fluorine content be 0.30% and organic content be 0.21%, the phosphogypsum that dehydration obtains, gather materials and be thin river sand, fineness modulus control is 2.2~2.4, and the flyash size is controlled between 0.08~0.12mm.Re-dispersible glue powder is the powder that vinyl acetate between to for plastic and vinyl monomer copolymerization obtain, and mixes according to above proportioning, namely makes α high strength gypsum based self-leveling material, then, and by constructing behind water-cement ratio 0.43 poach.Through detecting, the performance index of this material can satisfy the every requirement among the JC/T1023-2007 " gypsum base gravity flowing levelling mortar ".
Embodiment 5:
Adopt phosphogypsum to prepare the production technique of α high strength gypsum based self-leveling material, its each component proportioning is as follows:
1) make α high strength gypsum powder by phosphogypsum:
Modified ardealite: 50%; Water: 39.99%; Calcium chloride: 10%; Tartrate: 0.01%;
According to above proportioning raw material is dropped in the reactor, stirring and evenly mixing is made slip, heats to 85 ℃, is incubated 12h then, carries out the constant pressure hydro-thermal reaction, makes the dihydrate gypsum dehydration be transformed into the α high strength gypsum; Through 85 ℃ of hot washes, after the solid-liquid separation, obtain α high strength gypsum slurry then, make α high strength gypsum powder 90 ℃ of following dryings rapidly;
2) make the gypsum base self-leveling material with α high strength gypsum powder:
α high strength gypsum powder: 50%; Thin river sand: 38.85%; Aluminosulfate cement: 3%; Flyash: 3%; Re-dispersible glue powder: 4%; SC retardant: 0.2%; Sulfonated melamine water reducer: 0.3%; Carboxymethyl cellulose: 0.1%; Sodium dodecylbenzene sulfonate: 0.4%; Organic silicone oil: 0.15%;
Modified ardealite is the byproduct that phosphoric acid by wet process technology emits, through washing after the lime milk solution modification, flotation to solvable phosphorus content be 0.45%, solvable fluorine content be 0.32% and organic content be 0.24%, the phosphogypsum that dehydration obtains, gather materials and be thin river sand, fineness modulus control is 2.2~2.4, and the flyash size is controlled between 0.08~0.12mm.Re-dispersible glue powder is the powder that vinyl acetate between to for plastic and vinyl monomer copolymerization obtain, and mixes according to above proportioning, namely makes α high strength gypsum based self-leveling material, then, and by constructing behind water-cement ratio 0.44 poach.Through detecting, the performance index of this material can satisfy the every requirement among the JC/T1023-2007 " gypsum base gravity flowing levelling mortar ".
Some salient featuress of the gypsum base self-leveling material that the present invention is made according to standard JC/T1023-2007 " gypsum base gravity flowing levelling mortar " are tested result such as following table:

Claims (10)

1. adopt the α high strength gypsum based self-leveling material of phosphogypsum preparation, its feed composition percentage ratio is by weight counted:
α high strength gypsum powder: 40~60%; Gather materials: 30~50%; Cement: 1~4%; Flyash: 1~4%;
Re-dispersible glue powder: 2~4%; Retardant: 0.1~0.3%; Water reducer: 0.2~0.75%; Water-holding agent: 0.1~0.25%;
Air entrapment agent: 0.1~0.4%; Defoamer: 0.05~0.15%.
2. the α high strength gypsum based self-leveling material of employing phosphogypsum according to claim 1 preparation, the preparation method who it is characterized in that described α high strength gypsum powder is: material modification phosphogypsum, water, medium crystallization agent A and medium crystallization agent B are dropped in the reactor, stirring and evenly mixing is made slip, heat to 80~100 ℃, be incubated 4~24h then, carry out the constant pressure hydro-thermal reaction, make the dihydrate gypsum dehydration be transformed into the α high strength gypsum; Through hot wash, after the solid-liquid separation, obtain α high strength gypsum slurry then, drying makes α high strength gypsum powder under 90~100 ℃ of temperature rapidly; Described raw material percentage ratio is by weight counted modified ardealite: 35~60%; Water: 28~50%; Medium crystallization agent A:7~15%; Medium crystallization agent B:0.01~0.5%.
3. the α high strength gypsum based self-leveling material of employing phosphogypsum according to claim 2 preparation, it is characterized in that described modified ardealite is the byproduct that phosphoric acid by wet process technology emits, through washing after the lime milk solution modification, flotation to solvable phosphorus content be not more than 0.6%, solvable fluorine content be not more than 0.4% and organic content be not more than 0.3%, dehydration obtains.
4. according to the α high strength gypsum based self-leveling material of claim 2 or 3 described employing phosphogypsum preparations, it is characterized in that described medium crystallization agent A is calcium chloride.
5. according to the α high strength gypsum based self-leveling material of claim 2 or 3 described employing phosphogypsum preparations, it is characterized in that described medium crystallization agent B is tartrate.
6. the α high strength gypsum based self-leveling material of employing phosphogypsum according to claim 1 preparation, it is characterized in that: described gathering materials is thin river sand, and fineness modulus is controlled 2.2~2.4; Described cement is aluminosulfate cement; Described re-dispersible glue powder is the powder that vinyl acetate between to for plastic and vinyl monomer copolymerization obtain; Described retardant is any one in citric acid, Citrate trianion, tartrate, polyphosphoric acid salt and the SC retardant; Described water reducer is any one in poly carboxylic acid dry powder water reducer, naphthalene water reducer or the sulfonated melamine water reducer; Described water-holding agent is any one in methylcellulose gum, Natvosol or the carboxymethyl cellulose; Described air entrapment agent is alkyls or alkylated aromatic sulfonic acid class air entrapment agent; Described defoamer is organic silicone oil or nonionogenic tenside.
7. the production technique of the α high strength gypsum based self-leveling material of the described employing phosphogypsum of claim 1 preparation, it includes following steps: according to α high strength gypsum powder: 40~60%; Gather materials: 30~50%; Cement: 1~4%; Flyash: 1~4%; Re-dispersible glue powder: 2~4%; Retardant: 0.1~0.3%; Water reducer: 0.2~0.75%; Water-holding agent: 0.1~0.25%; Air entrapment agent: 0.1~0.4%; Defoamer: 0.05~0.15% gets material; With raw material blending, namely make α high strength gypsum based self-leveling material then; Wherein, the preparation method of described α high strength gypsum powder is: material modification phosphogypsum, water, medium crystallization agent A and medium crystallization agent B are dropped in the reactor, stirring and evenly mixing is made slip, heat to 80~100 ℃, be incubated 4~24h then, carry out the constant pressure hydro-thermal reaction, make the dihydrate gypsum dehydration be transformed into the α high strength gypsum; Through hot wash, after the solid-liquid separation, obtain α high strength gypsum slurry then, drying makes α high strength gypsum powder under 90~100 ℃ of temperature rapidly; Described raw material percentage ratio is by weight counted modified ardealite: 35~60%; Water: 28~50%; Medium crystallization agent A:7~15%; Medium crystallization agent B:0.01~0.5%.
8. the production technique of the α high strength gypsum based self-leveling material of employing phosphogypsum according to claim 2 preparation, it is characterized in that described modified ardealite is the byproduct that phosphoric acid by wet process technology emits, through washing after the lime milk solution modification, flotation to solvable phosphorus content be not more than 0.6%, solvable fluorine content be not more than 0.4% and organic content be not more than 0.3%, dehydration obtains.
9. according to the production technique of the α high strength gypsum based self-leveling material of claim 7 or the preparation of 8 described employing phosphogypsums, it is characterized in that described medium crystallization agent A is calcium chloride, described medium crystallization agent B is tartrate.
10. the production technique of the α high strength gypsum based self-leveling material of employing phosphogypsum according to claim 7 preparation, it is characterized in that: described gathering materials is thin river sand, and fineness modulus is controlled 2.2~2.4; Described cement is aluminosulfate cement; Described re-dispersible glue powder is the powder that vinyl acetate between to for plastic and vinyl monomer copolymerization obtain; Described retardant is any one in citric acid, Citrate trianion, tartrate, polyphosphoric acid salt and the SC retardant; Described water reducer is any one in poly carboxylic acid dry powder water reducer, naphthalene water reducer or the sulfonated melamine water reducer; Described water-holding agent is any one in methylcellulose gum, Natvosol or the carboxymethyl cellulose; Described air entrapment agent is alkyls or alkylated aromatic sulfonic acid class air entrapment agent; Described defoamer is organic silicone oil or nonionogenic tenside.
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CN104628349A (en) * 2015-02-06 2015-05-20 武汉理工大学 Phosphogypsum based high flow state grouting material
CN104692755A (en) * 2015-02-02 2015-06-10 武汉理工大学 Phosphogypsum-base self-leveling material and preparation method thereof
CN105541251A (en) * 2015-12-22 2016-05-04 南京工业大学 Gypsum-based floor thermal insulation material
CN106220115A (en) * 2016-07-19 2016-12-14 北京建筑材料科学研究总院有限公司 Utilize gypsum base gravity flowing levelling mortar prepared by iron tailings fine sand and preparation method thereof
CN106316318A (en) * 2016-08-08 2017-01-11 许国东 Self-leveling wear-resistant floor and preparation method thereof
CN106348709A (en) * 2016-08-30 2017-01-25 派丽(上海)管理有限公司 Foaming heat-conducting gypsum-based self- leveling floor tile materials
CN106431146A (en) * 2016-10-09 2017-02-22 南京工业大学 Composite gypsum-based self-leveling mortar and preparation method
CN106630869A (en) * 2016-11-25 2017-05-10 罗雷 Colorful self-leveling material and preparation method thereof
CN106904925A (en) * 2017-04-09 2017-06-30 湖南七纬科技有限公司 A kind of ardealite based self-leveling material
CN107512894A (en) * 2016-06-16 2017-12-26 苏州市兴邦化学建材有限公司 A kind of high-strength crack resistance type coloured plaster based self-leveling material and preparation method thereof
CN107586088A (en) * 2017-09-29 2018-01-16 江苏夫科技股份有限公司 A kind of warm-land cushion course gypsum based self-leveling mortar and preparation method with thermal and insulating performance
CN108083746A (en) * 2017-12-06 2018-05-29 诺弗斯绝热材料有限公司 A kind of surface layer high intensity self-leveling material and preparation method thereof
CN108298928A (en) * 2018-04-04 2018-07-20 夏璐 A kind of plasticizing quick hardening cement and its preparation method
CN108558343A (en) * 2018-07-09 2018-09-21 武汉理工大学 A method of preparing assembled high-strength light plank using high strength gypsum slurry
CN109734341A (en) * 2019-03-13 2019-05-10 西南科技大学 A kind of method that ardealite physical chemistry brightened and prepared cementitious material
CN110759694A (en) * 2019-09-28 2020-02-07 四川砼兴源建材有限责任公司 Special filler for phosphogypsum-based ground heating backfill
CN111550001A (en) * 2020-04-25 2020-08-18 武汉理工大学 Light gypsum-based self-leveling floor ground heat-insulation sound-insulation structure and construction method thereof
CN109734341B (en) * 2019-03-13 2021-05-28 西南科技大学 Method for physical and chemical whitening of phosphogypsum and preparation of cementing material

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CN103496936A (en) * 2013-10-16 2014-01-08 上海利物宝建筑科技有限公司 Assembly type building component joint gypsum base sealing material and application thereof
CN104692755A (en) * 2015-02-02 2015-06-10 武汉理工大学 Phosphogypsum-base self-leveling material and preparation method thereof
CN104628349A (en) * 2015-02-06 2015-05-20 武汉理工大学 Phosphogypsum based high flow state grouting material
CN105541251A (en) * 2015-12-22 2016-05-04 南京工业大学 Gypsum-based floor thermal insulation material
CN107512894A (en) * 2016-06-16 2017-12-26 苏州市兴邦化学建材有限公司 A kind of high-strength crack resistance type coloured plaster based self-leveling material and preparation method thereof
CN106220115B (en) * 2016-07-19 2018-07-20 北京建筑材料科学研究总院有限公司 The gypsum based self-leveling mortar and preparation method thereof prepared using iron tailings fine sand
CN106220115A (en) * 2016-07-19 2016-12-14 北京建筑材料科学研究总院有限公司 Utilize gypsum base gravity flowing levelling mortar prepared by iron tailings fine sand and preparation method thereof
CN106316318A (en) * 2016-08-08 2017-01-11 许国东 Self-leveling wear-resistant floor and preparation method thereof
CN106348709A (en) * 2016-08-30 2017-01-25 派丽(上海)管理有限公司 Foaming heat-conducting gypsum-based self- leveling floor tile materials
CN106431146A (en) * 2016-10-09 2017-02-22 南京工业大学 Composite gypsum-based self-leveling mortar and preparation method
CN106630869A (en) * 2016-11-25 2017-05-10 罗雷 Colorful self-leveling material and preparation method thereof
CN106904925B (en) * 2017-04-09 2019-12-03 冀东水泥重庆江津有限责任公司 A kind of ardealite based self-leveling material
CN106904925A (en) * 2017-04-09 2017-06-30 湖南七纬科技有限公司 A kind of ardealite based self-leveling material
CN107586088A (en) * 2017-09-29 2018-01-16 江苏夫科技股份有限公司 A kind of warm-land cushion course gypsum based self-leveling mortar and preparation method with thermal and insulating performance
CN108083746A (en) * 2017-12-06 2018-05-29 诺弗斯绝热材料有限公司 A kind of surface layer high intensity self-leveling material and preparation method thereof
CN108298928A (en) * 2018-04-04 2018-07-20 夏璐 A kind of plasticizing quick hardening cement and its preparation method
CN108558343A (en) * 2018-07-09 2018-09-21 武汉理工大学 A method of preparing assembled high-strength light plank using high strength gypsum slurry
CN109734341A (en) * 2019-03-13 2019-05-10 西南科技大学 A kind of method that ardealite physical chemistry brightened and prepared cementitious material
CN109734341B (en) * 2019-03-13 2021-05-28 西南科技大学 Method for physical and chemical whitening of phosphogypsum and preparation of cementing material
CN110759694A (en) * 2019-09-28 2020-02-07 四川砼兴源建材有限责任公司 Special filler for phosphogypsum-based ground heating backfill
CN111550001A (en) * 2020-04-25 2020-08-18 武汉理工大学 Light gypsum-based self-leveling floor ground heat-insulation sound-insulation structure and construction method thereof

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