CN105819811A - Method for preparing cement-based grouting material from phosphorus solid wastes through wet grinding technology - Google Patents
Method for preparing cement-based grouting material from phosphorus solid wastes through wet grinding technology Download PDFInfo
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- CN105819811A CN105819811A CN201610136342.5A CN201610136342A CN105819811A CN 105819811 A CN105819811 A CN 105819811A CN 201610136342 A CN201610136342 A CN 201610136342A CN 105819811 A CN105819811 A CN 105819811A
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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
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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
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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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)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a method for preparing a cement-based grouting material from phosphorus solid wastes through a wet grinding technology. The method comprises the following steps: carrying out grading crushing on 50-150 parts of phosphorus tailings, and sieving the crushed phosphorus tailings to obtain phosphorus tailing powder; crushing 50-90 parts of phosphorus residues through a crusher to form phosphorus residue powder; adding 6-12 parts of phosphogypsum, 0.5-0.8 parts of a grinding aid, 5-10 parts of an alkali activator and 50-65 parts of water to the phosphorus residue powder, placing the obtained mixture in a ball mill, carrying out ball milling, and ageing the ball-milled mixture for 2-5h to obtain a slurry; and taking 100 parts of cement, 0.8-1.5 parts of a water reducer, 5-8 parts of an expanding agent and 1.0-1.8 parts of an antifoaming agent, adding the phosphorus tailing powder and the slurry, and uniformly stirring all above materials in a stirrer to obtain the cement-based grouting material. The phosphorus solid wastes are adopted as a main raw material, wet grinding is adopted to substitute dry grinding, and the phosphorus tailings are adopted as aggregates, so the close packing and micro-aggregate effects are realized through particle size control, the potential activity of raw materials is fully displayed, and the cement-based grouting material has the advantages of good compactness, low energy consumption and low production cost, and can be applied to industries and building engineering.
Description
Technical field
The invention belongs to building material field, be specifically related to one phosphorus solid waste wet-grinding technology and relative device and prepare cement-based grout
The method of material.
Background technology
The phosphoric acid production of China mainly uses Wet Processes of Phosphoric Acid at present, and phosphorus solid waste produces for producing in phosphorite process
Solid waste, including phosphorus mine tailing, phosphorus slag, ardealite etc..
Phosphorus mine tailing is the solid waste failing during phosphate rock floating concentrate to be used.Though China's phosphorus ore reserves are relatively big,
But it is mainly characterized by " middle and low grade bauxite is many, rich ore is few ", according to phosphoric acid production process conditions requirement, the biggest portion
Dividing phosphorus ore need to could meet phosphoric acid and high concentration phosphate fertilizer production through beneficiation enrichment, ore dressing is utilizing part high-grade phosphorus
While ore deposit, substantial amounts of phosphorus mine tailing is thrown aside, and bulk deposition causes serious environmental pollution, the resource of phosphorus mine tailing
Change to utilize and become a difficult problem.
Phosphorus slag is the granulated slag discharged during rock phosphate in powder produces yellow phosphorus, the most often produces 1t yellow phosphorus and about discharges
8～10t phosphorus slags.As one, there is lateral reactivity mineral, current phosphorus slag calcining cement, cement admixture,
All there is application in the direction such as concrete admixture, brick, but overall utilization is only 50%, along with domestic to yellow phosphorus demand
Being continuously increased, society and enterprise are brought the biggest pressure by stacking and the disposal of a large amount of phosphorus slags.
Ardealite is the solid waste with calcium sulfate as main component discharged during Wet-process phosphoric acid (WPPA), often
Presented in calcium sulphate dihydrate, often produce 1tP2O5About discharge 4.5～5.5t ardealites, its utilization rate is low,
Causing accumulative stacking, accumulative stacking does not only take up substantial amounts of soil, waste resource, and to the environment of surrounding,
Soil, vegetation, water system cause serious pollution, so the problem efficiently solving ardealite is extremely the most urgent.
Grouting material is broadly divided into chemical grouting material and cement grouting material, wherein cement grout material by material category
Material refers to a kind of by raw materials such as cement, aggregate (or without aggregate), additive and mineral admixtures, is formulated life
The batch mixing with rational gradation composition produced.Cement-based grouting material is widely used, foot bolt fastening, two
Secondary grouting, concrete structure reinforcement all have wilderness demand with the aspect such as transformation, prestressed pore passage grouting.
At present, admixture solid waste is prepared the research of cement-based grouting material and is had been reported both at home and abroad.As
CN104496354 discloses a kind of cement-based grouting material and preparation method thereof: cement 350～450, gravel
300～400, medium sand 150～200, fine sand 50～100, filler 20～70, extender 40～50, water reducer 6～10,
Auxiliary agent 1～3, water 13～20, during preparation, by all raw material mix and blends, obtain dry powder cement-based grouting material；
CN103641424 discloses a kind of large dosage steel slag grouting material, is made up of the raw material of following weight portion: slag
0%～80%, sulphate aluminium cement 0%～16%, portland cement 0%～31%, flyash 0%～15%, sand 0%～50%,
Exciting agent 0.2%～2.0%, water reducer 0.4%～1.5%, and extender 0.02%～0.05%.CN102515651
Disclose a kind of cement-based grouting material and preparation method thereof, be made up of following three parts, A: diluent: 1～10
Part, defoamer: 0～1 part, coupling agent: 1～5 part, B component includes that the water solublity amine with emulsification function is solid
Agent, component C includes cement 30～50 parts, superfine mineral powder 2～4 parts, silicon powder 0～1 part, extender 2～4
Part, water reducer 0-1 part, fluvial sand 40-60 part, A, B, C tri-the weight ratio of component be
60-100:90～150:400～800.In above-mentioned patent, the process of raw material all uses dry mill process, and dry grinding is relative to wet
Mill energy consumption is higher.Owing to compact structure is required higher by grouting material, in grouting material, granule needs composite particles
Grating principle design, such as the large dosage steel slag grouting material of CN103641424, compact structure is poor.
A kind of cement-based grouting material of CN102515651 and preparation method thereof, with cement as major gelled material, cost
Higher.
Therefore, a kind of energy consumption is low, compactness preferable, the useless rate of low cost, profit is high grouting material and preparation are invented
Method has great importance and actual demand.
Summary of the invention
It is an object of the invention to for above-mentioned present situation, it is desirable to provide a kind of material compactness prepared is good, and energy consumption is low,
Production cost is low, and the useless rate of profit is high, and what performance can meet that relevant criterion requires prepares cement with phosphorus solid waste wet-grinding technology and relative device
The method of base grouting material.
The implementation of the object of the invention is, the method preparing cement-based grouting material with phosphorus solid waste wet-grinding technology and relative device, tool
Body step is as follows:
1) weigh the phosphorus mine tailing that parts by weight are 50-150 part, carry out 4.75mm, 2.36mm, 1.18mm, 600
μm, 300 μm, 150 μm graded crushings, rectangular mesh add up screen over-size be respectively as follows: 0%, 0-25%, 10-50%,
41-70%, 70-92%, 80-100%, obtain phosphorus mine tailing；
2) weighing the phosphorus slag that parts by weight are 50-90 part, crusher in crushing, to mean diameter 2-10mm, obtains phosphorus slag
Powder；
3) weighing parts by weight is the ardealite of 6-12 part, the grinding aid of 0.5-0.8 part, 5-10 part alkali-activated carbonatite
Agent adds step 2) gained phosphorus slag powder and water that parts by weight are 50-65 part is placed in ball milling in ball mill, to than table
Area is 300-1100m2/ kg, average diameter of particles is 1-50 μm, is aged 2-5h, obtains slurry；
4) weigh cement that parts by weight are 100 parts, the water reducer of 0.8-1.5 part, the extender of 5-8 part,
1.0-1.8 part defoamer adds step 1) gained phosphorus mine tailing and step 3) gained slurry, it is placed in blender
Stirring, to stirring, obtains cement-based grouting material；
Described cement is for being Portland cement；
Described phosphorus mine tailing, phosphorus slag, ardealite are the solid waste of discharge during phosphorous chemical industry produces；
Described alkali-activator is one or more in Natrii Sulfas, Calx, waterglass；
Described water reducer be the one in melamine system water reducer, polycarboxylate based water reducer, naphthalene water reducer or
Multiple；
Described extender be HCSA extender, CEA composite expanding agent, FEA dispersion extender in any one or
Multiple；
Described grinding aid is polymeric polyols alcohols grinding aid, triethanolamine class grinding aid, triisopropanolamine class grinding aid
In one or more；
Described defoamer is one or both in polyalcohols defoamer, polysiloxane-based defoamer.
The present invention with phosphorus solid waste as primary raw material, wet feed grinding replace siccative grinding, utilize phosphorus mine tailing as gathering materials,
Pass through size controlling, it is achieved tightly packed and micro aggregate effect, give full play to raw material lateral reactivity energy consumption low, raw
Producing low cost, the useless rate of profit is high.
The invention has the beneficial effects as follows:
1, using phosphorus mine tailing as gathering materials, by graded crushing technique, the strict grain composition that controls to gather materials, in conjunction with super
Thin mineral admixture, it is achieved closs packing and micro aggregate effect, reaches compact structure effect；
2, raw material grinding uses wet-grinding technology and relative device, cooperative effect occurs under the conditions of alkali-activator, fully excites mineral
Admixture lateral reactivity, compactness is good, and energy consumption is low；
3, making full use of phosphorus solid waste, production cost is low, and the useless rate of profit is high, it is achieved solid waste resource recovery utilizes.
Grouting material performance provided by the present invention meets " cement-based grouting material application technology specification " (GB/T
50448-2015) standard-required, can be applicable to industry, architectural engineering.
Detailed description of the invention
Mill is that the grinding that added water by material becomes a kind of production method of slurry, its product fineness uniformly, unit weight volume production
The energy consumption of product is low, do not have the features such as dust from flying, noise are little.Be difficult by based on " phosphorus solid waste ", injection material
The present situation that material demand is bigger, in conjunction with synergistic feature of component each in wet-grinding technology and relative device, the present invention passes through wet grinding
Mineral admixture modification is prepared cement-based grouting material by technique, it is achieved the recycling of solid waste.
The present invention is by the phosphorus mine tailing graded crushing of 50-150 part, and sieve to obtain phosphorus mine tailing；The phosphorus slag of 50-90 part,
Crusher in crushing becomes phosphorus slag powder；Phosphorus slag powder adds 6-12 part ardealite, 0.5-0.8 part grinding aid, 20-40 part water
It is placed in wet grinding in ball mill and obtains slurry；100 parts of cement, 0.8-1.5 part water reducer, 0.15-0.3 part extender,
0.8-1.8 part defoamer phosphorates and stirs in mine tailing, pulp blender, obtains cement-based grouting material.
Leaching Properties of Soluble Phosphorus≤1% in described ardealite, Organic substance≤0.8%.
With specific embodiment in detail the present invention is described in detail below.
Embodiment 1:
1) weigh the phosphorus mine tailing that parts by weight are 100 parts, carry out 4.75mm, 2.36mm, 1.18mm, 600 μm,
300 μm, 150 μm graded crushings, rectangular mesh add up screen over-size be respectively as follows: 0%, 0-25%, 10-50%, 41-70%,
70-92%, 80-100%, obtain phosphorus mine tailing；
2) weighing the phosphorus slag that parts by weight are 70 parts, crusher in crushing, to mean diameter 2-10mm, obtains phosphorus slag powder；
3) ardealite that parts by weight are 8 parts, the polymeric polyols alcohols grinding aid of 0.6 part, 7 parts of water glass are weighed
Glass adds step 2) gained phosphorus slag powder and water that parts by weight are 54 parts is placed in ball milling in ball mill, to specific surface
Amass as 300-1100m2/ kg, average diameter of particles is 1-50 μm, is aged 2-5h, obtains slurry；
4) cement that parts by weight are 100 parts, the melamine system water reducer of 0.8 part, the HCSA of 7 parts are weighed
Extender, 1.2 parts of polyalcohols defoamer add steps 1) gained phosphorus mine tailing and step 3) gained slurry,
It is placed in blender stirring, to stirring, obtains cement-based grouting material.
According to " cement-based grouting material application technology specification " (GB/T 50448-2015) standard-required Progressive symmetric erythrokeratodermia
Can test.
Material property meets " cement-based grouting material application technology specification " (GB/T 50448-2015) standard to be wanted
Ask.
Embodiment 2: with embodiment 1, except for the difference that,
1) weighing the phosphorus mine tailing graded crushing that parts by weight are 125 parts, sieve to obtain phosphorus mine tailing；
2) weighing parts by weight is 90 parts of phosphorus slags, and crusher in crushing obtains phosphorus slag powder；
3) weighing parts by weight is 12 parts of ardealites, 0.8 part of triethanolamine class grinding aid, and 10 parts of Calx add step
Rapid 2) gained phosphorus slag powder, parts by weight are that the water of 63 parts is placed in ball milling in ball mill, are aged 2-5h, obtain slurry；
4) cement that parts by weight are 100 parts, the polycarboxylate based water reducer of 1.2 parts, the CEA of 5 parts are weighed
Composite expanding agent, 1.0 parts of polysiloxane-based defoamer add steps 1) gained phosphorus mine tailing and step 3) gained
Slurry, is placed in blender stirring, to stirring, obtains cement-based grouting material.
According to " cement-based grouting material application technology specification " (GB/T 50448-2015) standard-required Progressive symmetric erythrokeratodermia
Can test.
Material property meets " cement-based grouting material application technology specification " (GB/T 50448-2015) standard to be wanted
Ask.
Embodiment 3: with embodiment 1, except for the difference that,
1) weighing the phosphorus mine tailing graded crushing that parts by weight are 150 parts, sieve to obtain phosphorus mine tailing；
2) weighing parts by weight is 50 parts of phosphorus slags, and crusher in crushing obtains phosphorus slag powder；
3) weighing parts by weight is 6 parts of ardealites, 0.8 part of triisopropanolamine class grinding aid, and 5 parts of Natrii Sulfas add step
Rapid 2) gained phosphorus slag powder, parts by weight are that the water of 50 parts is placed in ball milling in ball mill, are aged 2-5h, obtain slurry；
4) weigh the cement that parts by weight are 100 parts, the naphthalene water reducer of 1.5 parts, the FEA extender of 6 parts,
1.5 parts of polysiloxane-based defoamer add steps 1) gained phosphorus mine tailing and step 3) gained slurry, it is placed in and stirs
Mix in machine and stir, to stirring, obtain cement-based grouting material.
According to " cement-based grouting material application technology specification " (GB/T 50448-2015) standard-required Progressive symmetric erythrokeratodermia
Can test.
Material property meets " cement-based grouting material application technology specification " (GB/T 50448-2015) standard to be wanted
Ask.
Embodiment 4: with embodiment 1, except for the difference that,
1) weighing the phosphorus mine tailing graded crushing that parts by weight are 75 parts, sieve to obtain phosphorus mine tailing；
2) weighing parts by weight is 90 parts of phosphorus slags, and crusher in crushing obtains phosphorus slag powder；
3) weighing parts by weight is 8 parts of ardealites, 0.2 part of triethanolamine+0.3 part of polymerized polyalcohol of class grinding aid
Class grinding aid ,+4 parts of Natrii Sulfas of 6 parts of Calx add step 2) gained phosphorus slag powder, parts by weight are that the water of 64 parts is put
Ball milling in ball mill, is aged 2-5h, obtains slurry；
4) weigh the cement that parts by weight are 100 parts ,+0.5 part of polycarboxylic acids of melamine water reducing agent of 1.0 parts subtracts
Water preparation ,+3 parts of CEA extenders of FEA extender of 5 parts, 1.8 parts of polysiloxane-based defoamer add step 1)
Gained phosphorus mine tailing and step 3) gained slurry, it is placed in blender stirring, to stirring, obtains cement based and fill
Pulp material.
According to " cement-based grouting material application technology specification " (GB/T 50448-2015) standard-required Progressive symmetric erythrokeratodermia
Can test.
Material property meets " cement-based grouting material application technology specification " (GB/T 50448-2015) standard to be wanted
Ask.
Embodiment 5: with embodiment 1, except for the difference that,
1) weighing the phosphorus mine tailing graded crushing that parts by weight are 50 parts, sieve to obtain phosphorus mine tailing；
2) weighing parts by weight is 60 parts of phosphorus slags, and crusher in crushing obtains phosphorus slag powder；
3) weighing parts by weight is 6 parts of ardealites, 0.1 part of triethanolamine+0.3 part of polymerized polyalcohol of class grinding aid
Class grinding aid+0.2 triisopropanolamine class grinding aid ,+4 parts of Natrii Sulfas of 2 parts of waterglass add step 2) gained phosphorus slag
Powder, parts by weight are that the water of 54 parts is placed in ball milling in ball mill, are aged 2-5h, obtain slurry；
4) cement that parts by weight are 100 parts ,+0.3 part of naphthalene system diminishing of melamine water reducing agent of 0.5 part are weighed
Agent ,+5 parts of HCSA extenders of FEA extender of 3 parts, 1.6 parts of polysiloxane-based defoamer add step 1)
Gained phosphorus mine tailing and step 3) gained slurry, it is placed in blender stirring, to stirring, obtains cement based and fill
Pulp material.
According to " cement-based grouting material application technology specification " (GB/T 50448-2015) standard-required Progressive symmetric erythrokeratodermia
Can test.
Material property meets " cement-based grouting material application technology specification " (GB/T 50448-2015) standard to be wanted
Ask.
Embodiment 6: with embodiment 1, except for the difference that,
1) weighing the phosphorus mine tailing graded crushing that parts by weight are 90 parts, sieve to obtain phosphorus mine tailing；
2) weighing parts by weight is 90 parts of phosphorus slags, and crusher in crushing obtains phosphorus slag powder；
3) weighing parts by weight is 12 parts of ardealites, 0.7 part of triisopropanolamine class grinding aid, 2 parts of waterglass+4
Part+4 parts of Calx of Natrii Sulfas add steps 2) gained phosphorus slag powder, parts by weight are that the water of 65 parts is placed in ball in ball mill
Mill, is aged 2-5h, obtains slurry；
4) weigh the cement that parts by weight are 100 parts ,+0.8 part of naphthalene water reducer of polycarboxylate water-reducer of 0.6 part,
The FEA extender of 3 parts+2 parts of CEA extenders of+3 parts of HCSA extenders, 1.0 polyalcohols defoamer+0.6
Part polysiloxane-based defoamer adds step 1) gained phosphorus mine tailing and step 3) gained slurry, it is placed in blender
Middle stirring, to stirring, obtains cement-based grouting material.
According to " cement-based grouting material application technology specification " (GB/T 50448-2015) standard-required Progressive symmetric erythrokeratodermia
Can test.
Material property meets " cement-based grouting material application technology specification " (GB/T 50448-2015) standard to be wanted
Ask.
Each raw material cited by the present invention, and the bound of each raw material of the present invention, interval value, and technique
The bound of parameter, interval value can realize the present invention, embodiment numerous to list herein.
Claims (2)
1. the method preparing cement-based grouting material with phosphorus solid waste wet-grinding technology and relative device, it is characterised in that: concrete steps are such as
Under:
1) weigh the phosphorus mine tailing that parts by weight are 50-150 part, carry out 4.75mm, 2.36mm, 1.18mm, 600
μm, 300 μm, 150 μm graded crushings, rectangular mesh add up screen over-size be respectively as follows: 0%, 0-25%, 10-50%,
41-70%, 70-92%, 80-100%, obtain phosphorus mine tailing；
2) weighing the phosphorus slag that parts by weight are 50-90 part, crusher in crushing, to mean diameter 2-10mm, obtains phosphorus slag
Powder；
3) weighing parts by weight is the ardealite of 6-12 part, the grinding aid of 0.5-0.8 part, 5-10 part alkali-activated carbonatite
Agent adds step 2) gained phosphorus slag powder and water that parts by weight are 50-65 part is placed in ball milling in ball mill, to than table
Area is 300-1100m2/ kg, average diameter of particles is 1-50 μm, is aged 2-5h, obtains slurry；
4) weigh cement that parts by weight are 100 parts, the water reducer of 0.8-1.5 part, the extender of 5-8 part,
1.0-1.8 part defoamer adds step 1) gained phosphorus mine tailing and step 3) gained slurry, it is placed in blender
Stirring, to stirring, obtains cement-based grouting material；
Described cement is for being Portland cement；
Described phosphorus mine tailing, phosphorus slag, ardealite are the solid waste of discharge during phosphorous chemical industry produces；
Described alkali-activator is one or more in Natrii Sulfas, Calx, waterglass；
Described water reducer be the one in melamine system water reducer, polycarboxylate based water reducer, naphthalene water reducer or
Multiple；
Described extender be HCSA extender, CEA composite expanding agent, FEA dispersion extender in any one or
Multiple；
Described grinding aid is polymeric polyols alcohols grinding aid, triethanolamine class grinding aid, triisopropanolamine class grinding aid
In one or more；
Described defoamer is one or both in polyalcohols defoamer, polysiloxane-based defoamer.
The method that phosphorus solid waste wet-grinding technology and relative device the most according to claim 1 prepares cement-based grouting material, its
It is characterised by: Leaching Properties of Soluble Phosphorus≤1% in ardealite, Organic substance≤0.8%.
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Cited By (4)
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| CN109896788A (en) * | 2018-05-23 | 2019-06-18 | 湖北工业大学 | Building connector grouting material prepared by wet-milling mode |
| CN110734264A (en) * | 2019-10-10 | 2020-01-31 | 重庆市园林建筑工程（集团）股份有限公司 | Reinforcing material for historic building, preparation method and grouting reinforcement method |
| CN114956759A (en) * | 2022-05-30 | 2022-08-30 | 湖北工业大学 | Method for preparing regenerated cementing material by using phosphogypsum and carbon sequestration pretreatment process |
| CN115849782A (en) * | 2022-12-06 | 2023-03-28 | 云南云天化股份有限公司 | Alkali-activated geopolymer cemented superfine phosphorus tailing filling material and preparation method thereof |
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| 金恒等: "磷尾矿制备胶结充填材料试验研究", 《化工矿物与加工》 * |
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| CN109896788B (en) * | 2018-05-23 | 2021-03-23 | 湖北工业大学 | Grouting material for building connecting piece prepared by wet grinding mode |
| CN110734264A (en) * | 2019-10-10 | 2020-01-31 | 重庆市园林建筑工程（集团）股份有限公司 | Reinforcing material for historic building, preparation method and grouting reinforcement method |
| CN114956759A (en) * | 2022-05-30 | 2022-08-30 | 湖北工业大学 | Method for preparing regenerated cementing material by using phosphogypsum and carbon sequestration pretreatment process |
| CN114956759B (en) * | 2022-05-30 | 2023-02-21 | 湖北工业大学 | Method for preparing regenerated cementing material by using phosphogypsum in cooperation with carbon sequestration pretreatment process |
| US11912630B2 (en) | 2022-05-30 | 2024-02-27 | Hubei University Of Technology | Method of preparing recycled cementitious material by phosphogypsum-assisted carbon sequestration pretreatment process |
| CN115849782A (en) * | 2022-12-06 | 2023-03-28 | 云南云天化股份有限公司 | Alkali-activated geopolymer cemented superfine phosphorus tailing filling material and preparation method thereof |
| CN115849782B (en) * | 2022-12-06 | 2024-05-28 | 云南云天化股份有限公司 | Alkali-activated geopolymer-cemented ultrafine phosphate tailing filling material and preparation method thereof |
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| CN105819811B (en) | 2018-05-22 |
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