CN113493338A - Geopolymer modified phosphogypsum building material and preparation method thereof - Google Patents
Geopolymer modified phosphogypsum building material and preparation method thereof Download PDFInfo
- Publication number
- CN113493338A CN113493338A CN202110794629.8A CN202110794629A CN113493338A CN 113493338 A CN113493338 A CN 113493338A CN 202110794629 A CN202110794629 A CN 202110794629A CN 113493338 A CN113493338 A CN 113493338A
- Authority
- CN
- China
- Prior art keywords
- phosphogypsum
- parts
- geopolymer
- building material
- geopolymer modified
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical class O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 title claims abstract description 93
- 229920000876 geopolymer Polymers 0.000 title claims abstract description 34
- 239000004566 building material Substances 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims description 5
- 238000000034 method Methods 0.000 claims abstract description 28
- 239000000049 pigment Substances 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 12
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000012190 activator Substances 0.000 claims abstract description 6
- 239000000654 additive Substances 0.000 claims abstract description 5
- 230000000996 additive effect Effects 0.000 claims abstract description 5
- 239000000945 filler Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000004576 sand Substances 0.000 claims description 18
- 230000032683 aging Effects 0.000 claims description 17
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 14
- 230000003472 neutralizing effect Effects 0.000 claims description 14
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Inorganic materials [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 14
- 238000006386 neutralization reaction Methods 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 239000012752 auxiliary agent Substances 0.000 claims description 12
- 239000002893 slag Substances 0.000 claims description 12
- 229920000642 polymer Polymers 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 10
- 239000004035 construction material Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- 238000001723 curing Methods 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 5
- 239000002202 Polyethylene glycol Substances 0.000 claims description 5
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 5
- 239000004111 Potassium silicate Substances 0.000 claims description 5
- 239000004115 Sodium Silicate Substances 0.000 claims description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 229920000570 polyether Polymers 0.000 claims description 5
- 229920001223 polyethylene glycol Polymers 0.000 claims description 5
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 5
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 5
- 235000019353 potassium silicate Nutrition 0.000 claims description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 5
- 229920005862 polyol Polymers 0.000 claims description 4
- 150000003077 polyols Chemical class 0.000 claims description 4
- 238000010345 tape casting Methods 0.000 claims description 4
- 239000002879 Lewis base Substances 0.000 claims description 3
- 238000000498 ball milling Methods 0.000 claims description 3
- 150000007527 lewis bases Chemical class 0.000 claims description 3
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 6
- 239000000377 silicon dioxide Substances 0.000 claims 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims 1
- 229910052681 coesite Inorganic materials 0.000 claims 1
- 229910052906 cristobalite Inorganic materials 0.000 claims 1
- 229910052682 stishovite Inorganic materials 0.000 claims 1
- 235000010215 titanium dioxide Nutrition 0.000 claims 1
- 229910052905 tridymite Inorganic materials 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 33
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 20
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 14
- 230000008569 process Effects 0.000 description 11
- 230000002285 radioactive effect Effects 0.000 description 10
- 239000000292 calcium oxide Substances 0.000 description 9
- 238000001514 detection method Methods 0.000 description 7
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 7
- 238000005325 percolation Methods 0.000 description 7
- 230000005284 excitation Effects 0.000 description 6
- 239000002920 hazardous waste Substances 0.000 description 6
- 238000007689 inspection Methods 0.000 description 6
- 239000012258 stirred mixture Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 230000001988 toxicity Effects 0.000 description 6
- 231100000419 toxicity Toxicity 0.000 description 6
- 239000003513 alkali Substances 0.000 description 5
- 229910001413 alkali metal ion Inorganic materials 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 5
- 239000002131 composite material Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 229910010272 inorganic material Inorganic materials 0.000 description 3
- 239000011147 inorganic material Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000009740 moulding (composite fabrication) Methods 0.000 description 3
- 239000002861 polymer material Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000002910 solid waste Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 229910052770 Uranium Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002367 phosphate rock Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- DNYWZCXLKNTFFI-UHFFFAOYSA-N uranium Chemical compound [U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U] DNYWZCXLKNTFFI-UHFFFAOYSA-N 0.000 description 2
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910052776 Thorium Inorganic materials 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- KIZFHUJKFSNWKO-UHFFFAOYSA-M calcium monohydroxide Chemical compound [Ca]O KIZFHUJKFSNWKO-UHFFFAOYSA-M 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 229920000592 inorganic polymer Polymers 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polyoxyethylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000000941 radioactive substance Substances 0.000 description 1
- 229910052705 radium Inorganic materials 0.000 description 1
- HCWPIIXVSYCSAN-UHFFFAOYSA-N radium atom Chemical compound [Ra] HCWPIIXVSYCSAN-UHFFFAOYSA-N 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229910052713 technetium Inorganic materials 0.000 description 1
- GKLVYJBZJHMRIY-UHFFFAOYSA-N technetium atom Chemical compound [Tc] GKLVYJBZJHMRIY-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/143—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
-
- 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
- C04B12/00—Cements not provided for in groups C04B7/00 - C04B11/00
- C04B12/005—Geopolymer cements, e.g. reaction products of aluminosilicates with alkali metal hydroxides or silicates
-
- 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
- C04B28/006—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 mineral polymers, e.g. geopolymers of the Davidovits type
-
- 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
- C04B7/00—Hydraulic cements
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
- C04B7/147—Metallurgical slag
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
- C04B7/243—Mixtures thereof with activators or composition-correcting additives, e.g. mixtures of fly ash and alkali activators
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Abstract
The invention provides a geopolymer modified phosphogypsum building material which comprises the following components in parts by weight: 20-45 parts of a silicon-aluminum raw material, 1-20 parts of a filler, 45-75 parts of phosphogypsum, 2-5 parts of an activator, 2-4 parts of a high-molecular additive and 2-3 parts of a pigment. The invention provides a method for preparing a building material by modifying phosphogypsum by utilizing the characteristics of geopolymer materials, which can recycle the phosphogypsum and prepare the building material with high stability, corrosion resistance and leakage resistance.
Description
Technical Field
The invention belongs to the field of comprehensive utilization of solid wastes and materials, and particularly relates to a geopolymer modified phosphogypsum building material and a preparation method thereof.
Background
The phosphogypsum is a solid waste material generated in the production process of phosphorus chemical industry, and the untreated phosphogypsum is acidic, has soluble fluorine and soluble phosphorus and has great environmental hazard; due to the particularity of the phosphate rock, the phosphogypsum also contains a certain amount of radioactive elements (uranium, radium and thorium), according to the research success of the predecessors, 90% of uranium in the phosphate rock is enriched into phosphoric acid, 90% of technetium is enriched into the phosphogypsum, although a part of radioactive elements are separated in the ore dressing stage, a part of radioactive elements enter and are enriched into the phosphogypsum, and the space for recycling the phosphogypsum is greatly limited due to the existence of the radioactive elements. Through detection, both the internal illumination index and the external illumination index of the phosphogypsum product in China are less than 1, and the phosphogypsum product belongs to a standard product, but by carefully researching detection results, the internal illumination index of most of the phosphogypsum products is close to 0.8, the external illumination index is close to 0.7, the requirement in the national mandatory standard GB6566 and 2010 building material radionuclide limitation is very close, and the serious problem of excessive radioactivity is easily caused once the phosphogypsum product is improperly controlled in the production and application processes. On the other hand, phosphogypsum contains soluble phosphorus and soluble fluorine and a small amount of harmful soluble substances (a small amount of arsenic, cadmium, lead and the like), although the harm degree of the substances is not enough to classify the phosphogypsum into the degree of harming waste, if the phosphogypsum is applied to building decoration materials in a large amount, certain pollution is caused, obviously, the result is not accepted by consumers, and therefore, the phosphogypsum cannot be effectively applied to the building materials in a large amount at present.
Geopolymer material is a novel inorganic polymer material invented in the last 70 th century, and is mainly an inorganic macromolecular material with a space grid structure formed by bonding reaction of silicon-aluminum material under alkaline condition.
The method for preparing the building material by modifying the phosphogypsum by utilizing the characteristics of geopolymer materials needs to be researched, so that the phosphogypsum can be recycled, and the building material with high stability, corrosion resistance and leakage resistance can be prepared.
Disclosure of Invention
The invention aims to provide a method for preparing a building material by modifying phosphogypsum by utilizing the characteristics of geopolymer materials, which can recycle the phosphogypsum and prepare the building material with high stability, corrosion resistance and leakage resistance.
The technical purpose of the invention is realized by the following technical scheme:
the geopolymer modified phosphogypsum building material comprises the following components in parts by weight: 20-45 parts of a silicon-aluminum raw material, 1-20 parts of a filler, 45-75 parts of phosphogypsum, 2-5 parts of an activator, 2-4 parts of a high-molecular additive and 2-3 parts of a pigment.
As a further setting of the invention, the silicon-aluminum raw material is Si: the alumino-silico raw material with the Al molar ratio of 0.5-6 can be one or a mixture of more of alumino-silico raw materials such as metakaolin, water quenched slag, fly ash, activated tailings, red mud and the like, and preferably is Si: the Al molar ratio is between 1 and 4, and the Si: the Si/Al raw material with Al molar ratio between 1 and 3, such as 750 ℃ activated metakaolin, superfine water quenched slag, activated tailings and other Si/Al raw materials, is optimized to 750 ℃ activated metakaolin (Si: Al molar ratio between 1 and 1.2) or Si/Al raw material or composite material with similar Si/Al molar ratio.
As a further configuration of the invention, the filler is one or more of iron tailing sand, copper tailing sand and lead-zinc tailing sand. On one hand, the tailing sand can form a compact finished product structure, the anti-seepage performance is optimized, on the other hand, a certain amount of insoluble stable metal ion compounds are also contained in the tailing sand, the shielding and the solid sealing of radioactive substances are favorably formed, and the iron tailing sand and the copper tailing sand are optimally selected, so that the two tailing sands are wide in stock, stable in property, free of secondary hazard and high in use safety.
As a further arrangement of the invention, the phosphogypsum is subjected to neutralization, aging and drying.
As a further arrangement of the invention, the phosphogypsum neutralization and aging treatment process is to adopt ground steel slag as Lewis base to carry out neutralization treatment and aging on the phosphogypsum. The phosphogypsum neutralization and aging treatment process can be implemented by adopting Lewis base for neutralization treatment, preferably adopting alkali metal or alkaline earth metal oxide for treatment, most preferably adopting alkaline earth metal, especially CaO or CaOH for treatment, which is favorable for converting soluble phosphorus and soluble fluorine into inert insoluble substances without influencing the product forming process, in order to process solid wastes as much as possible and reduce the cost, simultaneously introduce reactants for the development of subsequent geopolymer, most preferably and recommended neutralizing agent is ground steel slag, and free CaO in the steel slag micro powder is utilized for neutralization treatment and aging of the phosphogypsum so as to fully perform the neutralization reaction.
As a further arrangement of the invention, the activator is potassium silicate, a mixture of sodium silicate with potassium hydroxide and sodium hydroxide.
As a further arrangement of the invention, the molar ratio of the activator is SiO 2: MO is 0.6-1.1(M is alkali metal), the mol ratio is preferably 0.8-1.6, most preferably 1-1.2, the activator can accelerate the forming process by heating during the use process, the temperature is 60-120 ℃, preferably 70-110 ℃, most preferably 80-100 ℃, and the aim of activating can also be achieved by a method of prolonging the forming time (3-7 days) under the room temperature condition.
As a further setting of the invention, the pigment is one of titanium dioxide, lithopone and lithopone. The alkaline of the geopolymer system at the initial stage of the reaction is higher, so the pigment should be selected from alkali-resistant pigments, and usually the alkali resistance of organic pigments is poorer, so that the inorganic pigment is preferably selected from white pigments, such as titanium dioxide, lithopone and the like, and the lithopone is most preferably selected as the pigment, and the lithopone is used as the pigment, so that the processability and the fluidity in the forming process can be improved, the surface condition of the formed material is optimized, and meanwhile, higher radiation shielding rate can be obtained, and the comprehensive effect is excellent.
As a further configuration of the invention, the polymer auxiliary agent is one or more of polyethylene glycol, polyethylene oxide and polyether polyol. The forming construction aid is an aid for improving the processing performance of geopolymer-phosphogypsum materials, is a polymer aid, and is beneficial to the improvement and development of physical and mechanical properties after forming, and the polymer aid contains a certain amount of hydroxyl, carboxyl or other groups which are easy to form binding force with hydroxyl on the surface of an inorganic material: in order to facilitate molding, the polymer auxiliary agent should also have a longer flexible chain segment, so as to facilitate the geopolymer-phosphogypsum material to have certain fluidity and thixotropy in the processing process, and both the polyhydroxy polymer with the molecular weight of more than 4000 and (or) the reactive macromonomer can be used as the polymer auxiliary agent, preferably polymer materials such as polyethylene glycol, polyvinyl alcohol, polyethylene oxide, long-chain polyurethane, polyester, polyether and the like, and most preferably polymer materials such as polyethylene glycol (9000), polyethylene oxide (8000000), polyether polyol (ethylene oxide end block) and the like or macromonomer materials are used as the auxiliary agent.
The invention also provides a preparation method of the geopolymer modified phosphogypsum building material, which comprises the following steps:
step S1: firstly, adding a neutralizing agent to neutralize and age phosphogypsum, wherein the neutralizing method comprises the steps of uniformly mixing the phosphogypsum and the neutralizing agent, then adding water and fully stirring, introducing a uniformly stirred product into a ball mill for ball milling, and then discharging and aging for 24 hours; filtering the aged phosphogypsum to remove most of the water, and drying at 50-60 ℃ to constant weight to obtain neutralized, aged and dried phosphogypsum;
step S2: and (2) uniformly mixing the aged phosphogypsum, the silicon-aluminum raw material, the high molecular auxiliary agent, the pigment and the exciting agent in the step S1, adding water, mixing and stirring, processing the uniform mixture into a blank plate in a mould by a tape casting method, and forming and curing the preliminarily formed blank plate for 8-18 hours under a hot press with the temperature of 60-120 ℃ and the pressure of 6-11MPa to obtain the formed plate.
The invention has the beneficial effects that:
1. the technical scheme of the invention is that radioactive elements contained in phosphogypsum are restrained and fixed through a space grid structure formed by geopolymer materials, so that the radioactive elements do not migrate and an effective embedding and fixing seal with a barrier is formed, and the leakage of a small amount of harmful substances is prevented while the radioactive elements are fixed by utilizing a silicon-aluminum three-dimensional grid structure with long-term stability and corrosion resistance formed in the geopolymer materials.
2. The geopolymer material is formed not only by alkali excitation but also by the fact that the alkali excitation and the sulfate excitation accord with the excitation effect.
3. The geopolymer material which is subjected to alkali excitation and sulfate composite excitation has excellent comprehensive mechanical properties, the highest compressive strength of the geopolymer material reaches 86.5MPa through detection, and the flexural strength of the geopolymer material reaches more than 18 MPa.
4. The invention effectively restricts the migration of most metal cations through the space grid structure of the geopolymer material, forms the solid seal of the shield of the belt, and the detection shows that the percolation quantity of the metal ions is reduced by 88.7 percent at least.
5. The invention reduces the radiation amount from 0.81 to 0.09 by the comprehensive action of geopolymer material, tailing sand and lithopone, greatly reduces the nuclide radiation amount which is even lower than river sand, and makes safe use of phosphogypsum possible.
6. The geopolymer-phosphogypsum composite material has the density close to that of gypsum, but the water resistance is greatly improved, the softening coefficient is 0.96, the softening coefficient of a cement-based material is reached, and the softening coefficient is greatly higher than that of a stone material of 0.2-0.4, so that the material prepared by using the phosphogypsum can also be used for outdoor buildings and decorations.
7. The invention adds the polymer auxiliary agent in the processing course, in order to be beneficial to the improvement and development of physical mechanical property after shaping, the polymer auxiliary agent contains a certain amount of hydroxyl, carboxyl or other groups which are easy to form binding force with the hydroxyl on the surface of the inorganic material, in order to be beneficial to shaping, the polymer auxiliary agent also has a longer flexible chain segment, so as to be beneficial to the geopolymer-phosphogypsum material to have certain fluidity and thixotropy in the processing course, under the action of the polymer auxiliary agent, the extrusion molding process of the geopolymer material, the phosphogypsum material and the composite material is realized for the first time, the inorganic material achieves the arrangement form of high orientation degree of internal molecules through extrusion molding, the high strength of the material is realized through a physical mechanical method, and the invention has the characteristics and advantages of good effect, low cost, high efficiency and the like.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, wherein M is an alkali metal ion, are within the scope of the present invention.
First, an embodiment
Example 1
Firstly, carrying out neutralization and aging on phosphogypsum, wherein the pH value of the used phosphogypsum is 1.3, the neutralizing agent adopts CaO, and the using amount of the CaO is 3.8 percent of the amount of the phosphogypsum, the neutralization method comprises the steps of uniformly mixing the phosphogypsum and the CaO, adding water which is 1.2 times of the amount of the mixture, fully stirring, introducing the uniformly stirred product into a ball mill for ball milling for 1 hour, and then discharging and aging for 24 hours;
most of the self water of the aged phosphogypsum is removed by filtration, and then the aged phosphogypsum is dried to constant weight under the condition of 50-60 ℃ to obtain the phosphogypsum which is subjected to neutralization, aging and drying.
60 parts of phosphogypsum, 22 parts of metakaolin calcined at 750 ℃, 3 parts of high molecular additive polyethylene glycol, 10 parts of iron tailing sand, 2 parts of lithopone pigment and 3 parts of potassium silicate and potassium hydroxide mixture (SiO)2：K2O1) is uniformly mixed, 230 parts of water is added for mixing and stirring, the uniformly stirred mixture is extruded and processed into a plate by a ceramic blank extruder, the formed plate is steam-cured for 6 hours at the temperature of 85-90 ℃, and a test result is shown in the following table 1:
table 1 testing of example 1 the results of various properties
Reference standard: percolation test GB 5085.3-2007 Standard identification of hazardous waste leach toxicity identification; nuclide inspection GB 6566-; the values in () in the table above are standard values.
The detection data in the table show that after the phosphogypsum is compounded with the geopolymer material, the permeability of harmful substances and the detection quantity of radioactive nuclides are greatly reduced, so that the geopolymer material plays a role in shielding and sealing, and in addition, the detection result of the softening coefficient also shows that the water resistance of the compounded material is greatly improved.
Example 2
Neutralizing and aging phosphogypsum, wherein the pH value of the used phosphogypsum is 1.6, the neutralizing agent is ground steel slag, the content of free calcium oxide (f-CaO) is 8.2 percent, the using amount of the free calcium oxide (f-CaO) is 16.7 percent of the amount of phosphogypsum, the neutralizing method is that the phosphogypsum is uniformly mixed with water which is 0.5 time of the self weight and then ground, and the total specific surface area of the ground phosphogypsum reaches 300m2After the powder is kg, the total specific surface area reaches 300m2Uniformly mixing steel slag micro powder per kg, adding water which is 0.3 time of the amount of the mixture, fully stirring, uniformly stirring, discharging and aging for 24 hours;
most of the self water of the aged phosphogypsum is removed by filtration, and then the aged phosphogypsum is dried to constant weight under the condition of 50-60 ℃ to obtain the phosphogypsum which is subjected to neutralization, aging and drying.
52 parts of phosphogypsum, 28 parts of metakaolin calcined at 750 ℃, 4 parts of high molecular additive polyoxyethylene, 8 parts of copper tailing sand, 3 parts of lithopone pigment and 5 parts of mixture of sodium silicate and sodium hydroxide (SiO)2：Na2O1.2), adding 260 parts of water, mixing and stirring, processing the uniformly stirred mixture into a blank plate in a mould by a tape casting method, forming and curing the preliminarily formed blank plate for 8 hours under a hot press with the temperature of 80 ℃ and the pressure of 6.5MPa to obtain a formed plate, and testing the formed plateThe results are shown in table 2 below:
table 2 test of example 2 the results of various properties
Reference standard: percolation test GB 5085.3-2007 Standard identification of hazardous waste leach toxicity identification; nuclide inspection GB6566-2010 construction material radionuclide limits; the values in () in the table above are standard values.
Example 3
Neutralizing and aging phosphogypsum, wherein the pH value of the used phosphogypsum is 2.1, the neutralizing agent is ground steel slag, the content of free calcium oxide (f-CaO) is 11.4 percent, the using amount of the free calcium oxide (f-CaO) is 15.8 percent of the amount of phosphogypsum, the neutralizing method is that the phosphogypsum is uniformly mixed with water which is 0.8 time of the self weight and then ground, and the total specific surface area of the ground phosphogypsum reaches 350m2After the powder is kg, the total specific surface area reaches 300m2Uniformly mixing steel slag micro powder per kg, adding water which is 0.5 time of the amount of the mixture, fully stirring, uniformly stirring, discharging and aging for 24 hours;
and (3) filtering the aged phosphogypsum to remove most of the self water, and drying the phosphogypsum to constant weight at the temperature of 50-60 ℃ under a standard condition to obtain the neutralized aged and dried phosphogypsum.
75 parts of phosphogypsum, 20 parts of metakaolin calcined at 750 ℃, 3 parts of lithopone pigment and 2 parts of mixture of potassium silicate and sodium hydroxide (SiO)2：M2O ═ 0.6M represents alkali metal ions), then adding 200 parts of water, mixing and stirring, processing the uniformly stirred mixture into a blank body in a mould by a tape casting method, molding and curing the preliminarily molded blank body for 12 hours under the conditions of a hot press with the temperature of 85 ℃ and the pressure of 3.5MPa, and obtaining the molded brick, wherein the test results are shown in the following table 3:
table 3 test of example 3 the results of various properties
Reference standard: percolation test GB 5085.3-2007 Standard identification of hazardous waste leach toxicity identification; nuclide inspection GB6566-2010 construction material radionuclide limits; the values in () in the table above are standard values.
Example 4
50 parts of phosphogypsum, 25 parts of superfine blast furnace slag, 18 parts of iron tailing sand, 3 parts of lithopone pigment and 4 parts of mixture of sodium silicate and potassium hydroxide (SiO)2：M2O ═ 0.6M represents alkali metal ions), then adding 160 parts of water, mixing and stirring, processing the uniformly stirred mixture into a blank plate by a copying method, forming and curing the preliminarily formed blank plate for 7d at normal pressure and room temperature to obtain a finished plate, keeping the integrity of the blank plate intact in the forming process and maintaining the pressure through a cover plate, and finally obtaining the formed plate, wherein the test results are shown in the following table 4:
table 4 test of example 4 the results of various properties
Reference standard: percolation test GB 5085.3-2007 Standard identification of hazardous waste leach toxicity identification; nuclide inspection GB6566-2010 construction material radionuclide limits; the values in () in the table above are standard values.
Example 5
50 parts of phosphogypsum, 35 parts of activated tailings (copper tailings composite activation), 8 parts of iron tailing sand, 3 parts of lithopone pigment and 5 parts of sodium silicate and potassium hydroxide mixture (SiO)2：M2O1.1M represents alkali metal ion), then adding 200 parts of water, mixing and stirring, processing the uniformly stirred mixture into a blank plate in a mould by a pouring method, and curing and molding the preliminarily molded blank plate for 18 hours in the mould with the pressure of 8MPa at 80-90 ℃ and the relative humidity of 95-99% to obtain the finished plateThe test results are shown in table 5 below:
table 5 test of example 5 the results of various properties
Reference standard: percolation test GB 5085.3-2007 Standard identification of hazardous waste leach toxicity identification; nuclide inspection GB6566-2010 construction material radionuclide limits; the values in () in the table above are standard values.
Example 6
45 parts of phosphogypsum, 35 parts of superfine water-quenched slag, 10 parts of metakaolin calcined at 750 ℃, 2 parts of high-molecular auxiliary agent polyether polyol, 3 parts of lithopone pigment and 5 parts of potassium silicate and sodium hydroxide mixture (SiO)2：M2O ═ 1M represents alkali metal ions), then 152 parts of water are added for mixing and stirring, the uniformly stirred mixture is processed into a blank plate by a pouring method and a die extrusion method, the blank plate which is preliminarily molded is cured and molded for 8 hours under the conditions of 80-90 ℃ and 11MPa, and the test results are shown in the following table 6:
table 6 test of example 6 the results of various properties
Reference standard: percolation test GB 5085.3-2007 Standard identification of hazardous waste leach toxicity identification; nuclide inspection GB6566-2010 construction material radionuclide limits; the values in () in the table above are standard values.
The test results of the above examples show that the harmful components in the phosphogypsum are greatly reduced by compounding with geopolymer materials, wherein the radioactive nuclide index is reduced to be within a safe range, and the radioactive index is close to that of river sand and machine-made sand and is far lower than the test results of decorative materials such as natural marble, granite and the like, so that the technical scheme of the invention can fully realize that the phosphogypsum can be used as a green and healthy environment-friendly building decorative material safely in a large scale.
The principles and embodiments of the present invention are explained herein using specific examples, which are set forth only to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The geopolymer modified phosphogypsum building material is characterized by comprising the following components in parts by weight: 20-45 parts of a silicon-aluminum raw material, 1-20 parts of a filler, 45-75 parts of phosphogypsum, 2-5 parts of an activator, 2-4 parts of a high-molecular additive and 2-3 parts of a pigment.
2. The geopolymer modified phosphogypsum building material as claimed in claim 1, wherein the alumino-silica raw material is Si: the Al molar ratio is between 0.5 and 6.
3. The geopolymer modified phosphogypsum construction material according to claim 1, characterized in that the filler is one or more of iron tailings sand, copper tailings sand, lead zinc tailings sand.
4. The geopolymer modified phosphogypsum construction material according to claim 1, wherein the phosphogypsum is subjected to neutralization aging treatment and drying.
5. The geopolymer modified phosphogypsum building material as claimed in claim 4, wherein the phosphogypsum neutralization and aging process is to neutralize and age phosphogypsum by using ground steel slag as Lewis base.
6. The geopolymer modified phosphogypsum construction material according to claim 1, characterized in that the excitant is a mixture of potassium silicate, sodium silicate and potassium and sodium hydroxide.
7. The geopolymer modified phosphogypsum construction material according to claim 6, wherein the mole ratio of the excitant is SiO2: MO is 0.6-1.1.
8. The geopolymer modified phosphogypsum building material as claimed in claim 1, wherein the pigment is one of titanium white, lithopone and lithopone.
9. The geopolymer modified phosphogypsum building material as claimed in claim 1, wherein the polymer auxiliary agent is one or more of polyethylene glycol, polyethylene oxide and polyether polyol.
10. The preparation method of geopolymer modified phosphogypsum building material as claimed in claim 1, characterized in that it comprises the following steps:
step S1: firstly, adding a neutralizing agent to neutralize and age phosphogypsum, wherein the neutralizing method comprises the steps of uniformly mixing the phosphogypsum and the neutralizing agent, then adding water and fully stirring, introducing a uniformly stirred product into a ball mill for ball milling, and then discharging and aging for 24 hours; filtering the aged phosphogypsum to remove most of the water, and drying at 50-60 ℃ to constant weight to obtain neutralized, aged and dried phosphogypsum;
step S2: and (2) uniformly mixing the aged phosphogypsum, the silicon-aluminum raw material, the high molecular auxiliary agent, the pigment and the exciting agent in the step S1, adding water, mixing and stirring, processing the uniform mixture into a blank plate in a mould by a tape casting method, and forming and curing the preliminarily formed blank plate for 8-18 hours under a hot press with the temperature of 60-120 ℃ and the pressure of 6-11MPa to obtain the formed plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110794629.8A CN113493338A (en) | 2021-07-14 | 2021-07-14 | Geopolymer modified phosphogypsum building material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110794629.8A CN113493338A (en) | 2021-07-14 | 2021-07-14 | Geopolymer modified phosphogypsum building material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113493338A true CN113493338A (en) | 2021-10-12 |
Family
ID=77995914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110794629.8A Pending CN113493338A (en) | 2021-07-14 | 2021-07-14 | Geopolymer modified phosphogypsum building material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113493338A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115521099A (en) * | 2022-10-24 | 2022-12-27 | 上海百奥恒新材料有限公司 | Composition for preparing geopolymer artificial fish reef, method for preparing geopolymer artificial fish reef, and geopolymer artificial fish reef |
| CN116177979A (en) * | 2023-03-15 | 2023-05-30 | 昆明理工大学 | Method for preparing composite paste material by using phosphogypsum and red mud and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102992804A (en) * | 2012-12-25 | 2013-03-27 | 铜陵化学工业集团有限公司 | Method for preparing aerated concrete by using phosphogypsum |
| CN104987014A (en) * | 2015-07-25 | 2015-10-21 | 福州大学 | Radiation-shielding concrete adopting lead-zinc tailings as raw material and preparation method therefor |
| CN106365578A (en) * | 2016-08-31 | 2017-02-01 | 韩涛 | Method for preparing building material by using phosphogypsum |
| CN110304882A (en) * | 2019-07-19 | 2019-10-08 | 河北建筑工程学院 | A kind of Phosphogypsum base polymer iron tailings sand concrete and preparation method thereof |
-
2021
- 2021-07-14 CN CN202110794629.8A patent/CN113493338A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102992804A (en) * | 2012-12-25 | 2013-03-27 | 铜陵化学工业集团有限公司 | Method for preparing aerated concrete by using phosphogypsum |
| CN104987014A (en) * | 2015-07-25 | 2015-10-21 | 福州大学 | Radiation-shielding concrete adopting lead-zinc tailings as raw material and preparation method therefor |
| CN106365578A (en) * | 2016-08-31 | 2017-02-01 | 韩涛 | Method for preparing building material by using phosphogypsum |
| CN110304882A (en) * | 2019-07-19 | 2019-10-08 | 河北建筑工程学院 | A kind of Phosphogypsum base polymer iron tailings sand concrete and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 严瑞瑄主编: "《水溶性高分子》", 30 June 1998, 化学工业出版社 * |
| 实用百科全书编委会: "《实用百科全书》", 30 June 1993, 开明出版社 * |
| 李凤生等: "《微纳米粉体后处理技术及应用》", 30 September 2005, 国防工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115521099A (en) * | 2022-10-24 | 2022-12-27 | 上海百奥恒新材料有限公司 | Composition for preparing geopolymer artificial fish reef, method for preparing geopolymer artificial fish reef, and geopolymer artificial fish reef |
| CN116177979A (en) * | 2023-03-15 | 2023-05-30 | 昆明理工大学 | Method for preparing composite paste material by using phosphogypsum and red mud and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113493338A (en) | Geopolymer modified phosphogypsum building material and preparation method thereof | |
| CN103641346A (en) | Method for preparing geopolymer gelled material from heavy metal gypsum | |
| CN112125543B (en) | Composite gel material prepared from bulk solid wastes and preparation method thereof | |
| CN112010595A (en) | Preparation method of high-strength semi-recycled coarse aggregate concrete | |
| CN110655338A (en) | Copper slag-based cementing material, preparation method and application | |
| CN112679117A (en) | High-performance portland cement and preparation method thereof | |
| CN114230208B (en) | High-strength cement and preparation method thereof | |
| KR20100077340A (en) | A composition of cement compound material using pretreated slag and manufacturing method thereof | |
| KR20230093138A (en) | Pozzolan cement composition and method for preparing the same | |
| CN110586617A (en) | Non-dangerous treatment method for dangerous solid waste | |
| CN113563106A (en) | Coal-fired furnace slag cementing material product and steam curing method thereof | |
| CN116803943A (en) | High-cost-performance composite concrete material crack self-repairing additive and application thereof | |
| CN110255943B (en) | Wet-grinding barium slag admixture and preparation method and application thereof | |
| CN115572150B (en) | Barite radiation-proof ceramic plate and preparation method thereof | |
| CN115650621B (en) | Composite active admixture for building material, preparation method of composite active admixture and building material | |
| CN115304356A (en) | High-strength construction waste recycled brick and preparation method thereof | |
| CN115368100A (en) | Preparation method of special cementing material for high-content regenerated gypsum micro-expansion road base | |
| CN113772980A (en) | Kaolin-based binder and preparation method and application thereof | |
| EP3603911A1 (en) | Molded article using hydraulic lime and method for producing same | |
| CN110407546B (en) | Porous autoclaved sand brick | |
| CN108358664B (en) | Cementing material prepared from fly ash and preparation method thereof | |
| KR102042777B1 (en) | The soil fill materials using product of industry | |
| CN113896494A (en) | Ferronickel slag building material and preparation method thereof | |
| KR20160096325A (en) | Cement brick having gypsum wastes and manufacturing process thereof | |
| CN113354359A (en) | Siliceous stone powder concrete and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211012 |
|
| RJ01 | Rejection of invention patent application after publication |