CN116409949A - Cementing material, preparation method thereof and grouting material containing cementing material - Google Patents
Cementing material, preparation method thereof and grouting material containing cementing material Download PDFInfo
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- CN116409949A CN116409949A CN202310223512.3A CN202310223512A CN116409949A CN 116409949 A CN116409949 A CN 116409949A CN 202310223512 A CN202310223512 A CN 202310223512A CN 116409949 A CN116409949 A CN 116409949A
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- parts
- grouting
- alunite
- cementing material
- cementing
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- 239000000463 material Substances 0.000 title claims abstract description 122
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052934 alunite Inorganic materials 0.000 claims abstract description 36
- 239000010424 alunite Substances 0.000 claims abstract description 36
- KPZTWMNLAFDTGF-UHFFFAOYSA-D trialuminum;potassium;hexahydroxide;disulfate Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Al+3].[Al+3].[Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O KPZTWMNLAFDTGF-UHFFFAOYSA-D 0.000 claims abstract description 36
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052802 copper Inorganic materials 0.000 claims abstract description 25
- 239000010949 copper Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000292 calcium oxide Substances 0.000 claims abstract description 19
- 235000012255 calcium oxide Nutrition 0.000 claims abstract description 19
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 17
- 239000010440 gypsum Substances 0.000 claims abstract description 16
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 16
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000010936 titanium Substances 0.000 claims abstract description 15
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 15
- 239000000654 additive Substances 0.000 claims abstract description 12
- 230000000996 additive effect Effects 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 239000012615 aggregate Substances 0.000 claims description 15
- 239000003638 chemical reducing agent Substances 0.000 claims description 14
- 239000002518 antifoaming agent Substances 0.000 claims description 10
- 238000000227 grinding Methods 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 8
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical group CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 8
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 7
- 239000006004 Quartz sand Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 229940037003 alum Drugs 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 6
- 238000010304 firing Methods 0.000 claims description 5
- 239000003381 stabilizer Substances 0.000 claims description 5
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 4
- 239000004115 Sodium Silicate Substances 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 229920000570 polyether Polymers 0.000 claims description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 4
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 3
- 239000012190 activator Substances 0.000 claims description 3
- 239000013530 defoamer Substances 0.000 claims description 3
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000391 magnesium silicate Substances 0.000 claims description 3
- 229910052919 magnesium silicate Inorganic materials 0.000 claims description 3
- 235000019792 magnesium silicate Nutrition 0.000 claims description 3
- WPJGWJITSIEFRP-UHFFFAOYSA-N 1,3,5-triazine-2,4,6-triamine;hydrate Chemical compound O.NC1=NC(N)=NC(N)=N1 WPJGWJITSIEFRP-UHFFFAOYSA-N 0.000 claims description 2
- 239000004111 Potassium silicate Substances 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 claims description 2
- DGVVJWXRCWCCOD-UHFFFAOYSA-N naphthalene;hydrate Chemical compound O.C1=CC=CC2=CC=CC=C21 DGVVJWXRCWCCOD-UHFFFAOYSA-N 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 2
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 2
- 235000019353 potassium silicate Nutrition 0.000 claims description 2
- 150000003376 silicon Chemical class 0.000 claims description 2
- 229940057950 sodium laureth sulfate Drugs 0.000 claims description 2
- SXHLENDCVBIJFO-UHFFFAOYSA-M sodium;2-[2-(2-dodecoxyethoxy)ethoxy]ethyl sulfate Chemical group [Na+].CCCCCCCCCCCCOCCOCCOCCOS([O-])(=O)=O SXHLENDCVBIJFO-UHFFFAOYSA-M 0.000 claims description 2
- 229920003169 water-soluble polymer Polymers 0.000 claims description 2
- 239000004568 cement Substances 0.000 abstract description 27
- 239000002699 waste material Substances 0.000 abstract description 7
- 239000004566 building material Substances 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000009825 accumulation Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 17
- 239000000203 mixture Substances 0.000 description 9
- 229910052500 inorganic mineral Inorganic materials 0.000 description 7
- 235000010755 mineral Nutrition 0.000 description 7
- 239000011707 mineral Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 229910000323 aluminium silicate Inorganic materials 0.000 description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 229910001653 ettringite Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical group [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical group O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 238000005303 weighing Methods 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
- 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
- C04B11/00—Calcium sulfate cements
- C04B11/28—Mixtures thereof with other inorganic cementitious materials
-
- 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
-
- 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 relates to the technical field of building materials, in particular to a cementing material, a preparation method thereof and grouting material containing the cementing material. According to the invention, after the alunite tailings carried in the copper mine are subjected to high-temperature pretreatment, the alunite tailings are mixed with nano silicon powder, titanium gypsum, quicklime and an exciting agent according to a certain mass ratio and ground into a certain specific surface area, so that a cementing material is prepared; and mixing the cementing material with aggregate, an additive and water to prepare the grouting material. The fluidity, compressive strength and expansion rate of the grouting material obtained by the invention are all superior to those of cement-based grouting materials, the problem that the alunite tailings carried in the waste copper ores occupy a large area of land due to accumulation is solved, and the concept is provided for the subsequent reduction of mass use of cement, so that the grouting material has better economic and social benefits.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a cementing material, a preparation method thereof and grouting material containing the cementing material.
Background
Along with the high-speed development of the economy and the continuous acceleration of the urban process in China, the scale of the building industry in China is increasingly enlarged, and the demand and performance requirements on building materials are gradually increased. The grouting material mainly comprises a cementing material, an expansion component, an early strength component, a water-reducing component, an aggregate and the like, is an important building material, and is widely applied to important facility fields such as concrete crack repair, building reinforcement, foundation treatment or bridge construction.
The grouting materials in the market at present mainly adopt cement-based grouting materials, namely cementing materials in the grouting materials adopt cement as one of main raw materials. Cement is one of three basic materials in the building industry, has better plasticity, durability and strong adaptability, has wide application range and large use amount, and plays an important role in social development. However, the cement production and manufacturing process needs to consume a large amount of energy and resources, the energy used in the domestic cement industry is mainly coal at present, the coal is one of non-renewable resources, and carbon dioxide discharged in the cement production process and during combustion is not friendly to long-term development of human beings and ecological environment.
Mineral resources in China are rich, mineral exploitation technology is updated continuously, but it is unavoidable that a certain amount of tailings are always generated in mineral exploitation, for example, alunite tailings are entrained in the copper mine exploitation process, and the alunite tailings entrained in the copper mine are often directly abandoned as waste tailings, so that a large amount of alunite tailings are accumulated, the utilization value cannot be provided, a large amount of land is occupied, and even environmental pollution is caused.
Disclosure of Invention
In view of the above, the invention provides a cementing material, a preparation method thereof and grouting material containing the cementing material. According to the invention, the alunite tailings entrained in the waste copper ores are used for replacing cement in the traditional preparation method to prepare the cementing material, so that the problems caused by the production and manufacture of cement are avoided, and the method can be used for reutilization of the alunite tailings entrained in the copper ores. The fluidity, compressive strength and expansion rate of the grouting material prepared by the cementing material can meet the requirements in GB/T50448-2015.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides a cementing material of alunite tailings carried in copper-bearing ores, which comprises the following components in parts by mass:
alunite tailings entrained in copper ores: 100-200 parts of a compound containing,
nano silicon powder: 50-200 parts of a compound containing,
titanium gypsum: 60-80 parts of a compound, wherein the compound comprises,
quicklime: 40-70 parts of a water-soluble polymer,
exciting agent: 10-20 parts of a lubricant;
the activator includes silicate and organosilicon.
The main components of alunite tailings carried in copper ores are aluminum oxide and sulfur oxide, which have the potential of generating ettringite and exerting gelling performance, but the research of using the alunite tailings carried in copper ores for preparing gelled materials to obtain grouting materials is very little at present. The inventor has found through research and accidents that the grouting material prepared from the cementing material prepared by mixing and grinding the alunite tailings, the nano silicon powder, the titanium gypsum, the quicklime and the excitant in the proportion has quite even better performance than cement-based grouting materials. Through researches, the action mechanism of the cementing material provided by the invention is as follows: the hydration product of the quicklime is calcium hydroxide, and the calcium hydroxide can absorb carbon dioxide in the air to form calcium carbonate, so that a certain carbon fixing effect is achieved; compared with common gypsum, titanium gypsum can enhance the carbon fixing effect; silicate in quicklime and excitant can generate synergistic excitation to alunite tailings and nano silicon powder carried in copper mine, so that aluminosilicate in high polymerization state in alunite tailings carried in copper mine can be causedThe minerals are converted into an oligomeric state, so that the amorphous active Al 2 O 3 And SiO 2 The quantity is increased, al 2 O 3 And SiO 2 Then reacts with sufficient sulfate radical provided by titanium gypsum to generate ettringite and aluminosilicate gel type minerals, so that the cementing material has stronger binding force and can be prepared into grouting material with excellent mechanical properties.
With the combination of the first aspect, the specific surface area of the nano silicon powder is 1200m 2 Above/kg, siO in the nano silicon powder 2 The content of (2) is more than 90%. Has the specific surface area and SiO 2 The nano silicon powder with higher content has higher activity and is easier to generate aluminosilicate gel minerals with sulfate radicals provided by titanium gypsum.
With the first aspect, the specific surface area of the titanium gypsum is 200-260m 2 Between/kg, preferably 240-260m 2 /kg。
In combination with the first aspect, the specific surface area of the quicklime is 200-240m 2 Between/kg, preferably 220-240m 2 And/kg, wherein the CaO content in the quicklime is more than 90%.
In combination with the first aspect, the silicate comprises at least one of sodium silicate, magnesium silicate, aluminum silicate, or potassium silicate, and the organosilicon is vinyltriethoxysilane.
The vinyl triethoxysilane can play a role of a cross-linking agent besides the excitation effect, so that the ettringite and aluminosilicate gel minerals and the alunite tailings are subjected to cross-linking polymerization, the binding force of the cementing material is improved, and the mechanical property of the finally obtained grouting material is ensured.
Preferably, the mass ratio of the silicate to the vinyltriethoxysilane is 8-9:1.
the second aspect of the invention provides a preparation method of the cementing material, which comprises the following steps:
s1, firing alunite tailings carried in the copper ore at the temperature of 660-760 ℃ for 25-35min to obtain alunite powder;
s2, mixing the alum stone powderMixing the nano silicon powder, titanium gypsum, quicklime and an exciting agent, and grinding until the specific surface area is 280-320m 2 And (3) between/kg, obtaining the cementing material.
The alunite tailings carried in the copper ores are subjected to high-temperature treatment at a certain temperature, so that free carbon and volatile organic compounds in the alunite tailings can be decomposed. Grinding the alum stone powder, the nano silicon powder, the titanium gypsum, the quicklime and the exciting agent to obtain a cementing material with a specific surface area of 280-320m 2 The specific surface area is too large, so that the energy consumption in the grinding process is increased, and too small can lead to uneven mixing, thereby affecting the mechanical property of the final grouting material. The high-temperature treatment and grinding can increase the active sites on the surfaces of the raw materials and improve the activity.
A third aspect of the present invention provides a grouting material comprising the above-described cementitious material, and aggregate, admixture and water; wherein the mass ratio of the cementing material to the aggregate to the additive is 3-5:3-5:0.01-0.2, wherein the water accounts for 10-15wt% of the total mass of the cementing material, the aggregate and the additive.
The cementing material is used for replacing common cement, and is mixed with aggregate, additive and water according to a certain proportion to prepare grouting material, so that the cement with higher production cost is avoided, and the recycling of alunite tailings entrained in waste copper ores can be realized. The fluidity, compressive strength and expansion rate of the grouting material can all meet the standards of the cement-based grouting material sold in the market.
With reference to the third aspect, the aggregate comprises, in parts by mass: 20-40 mesh quartz sand: 250-300 parts of 40-70 mesh quartz sand: 100-150 parts of quartz sand with 70-120 meshes: 100-150 parts; the additive comprises: water reducing agent: 1-2 parts of defoamer: 0.1-0.3 part of stabilizer: 0.5-1 part. The quartz sand with different meshes can ensure that the particle size of aggregate is uniform, so that the aggregate can be mixed uniformly to the greatest extent.
With reference to the third aspect, the water reducer is at least one of a polycarboxylic acid high-performance water reducer, a naphthalene water reducer or a melamine water reducer. The water reducing agent can reduce the surface tension of a grouting material system, increase the water film thickness of the surface and ensure the service performance of the grouting material. Among them, polycarboxylic acid high-performance water reducing agents are preferable.
With reference to the third aspect, the defoaming agent is at least one of an organic silicon defoaming agent, a polyether defoaming agent or a polyether modified silicon defoaming agent. The defoaming agent can eliminate harmful bubbles in a grouting material system, avoid stress concentration and improve the compactness of a final grouting material product. Among them, silicone-based antifoaming agents are preferable.
With reference to the third aspect, the stabilizer is sodium laureth sulfate.
According to the invention, the alunite tailings entrained in the waste copper ore are used for replacing cement raw materials to prepare the cementing material, and the cementing material is further mixed with aggregate, additive and water to prepare the grouting material, so that the grouting material has excellent working performance and mechanical property, long operation time, and under the synergistic effect of the water reducing agent and the stabilizer, the surface of the grouting material after construction hardening is smooth and flat, the defects of unevenness, cracking, flaking or powdering and the like of the traditional cement-based grouting material are overcome, and the grouting material has no rust to steel bar products, is durable and firm, and can resist the corrosion of greasy dirt or acid and alkali after solidification; meanwhile, the fluidity, compressive strength and expansion rate of the grouting material can all meet the standards of the cement-based grouting material sold in the market.
In addition, the utilization of the alunite tailings carried in the waste copper ores not only solves the problem that the stacking of the alunite tailings needs to occupy a large area of land, but also ensures that the grouting material prepared by taking the alunite tailings as an initial raw material has the performance equivalent to that of the traditional cement-based grouting material, thereby providing thinking for the subsequent reduction of mass use of cement and having better economic and social benefits.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The alunite tailings carried in the copper ore used in the invention are selected from the purple gold mountain copper ore, the active ingredient is kaolin, and the nano silicon powder, the water reducing agent and the defoamer are purchased from Shandong Hua Di building technology Co.
Example 1
The embodiment of the invention provides a cementing material and a preparation method thereof, wherein the composition of the cementing material is shown in a table 1, and the specific preparation steps of the cementing material are as follows:
s1, firing alunite tailings carried in copper ores for 30min at the temperature range of 700+/-10 ℃ to obtain alunite powder;
s2, mixing the obtained alum stone powder with the weighed nano silicon powder, titanium gypsum, quicklime, sodium silicate and vinyltriethoxysilane, and grinding until the specific surface area of the mixture reaches 280-320m 2 And (3) between/kg, obtaining the cementing material.
Example 2
The embodiment of the invention provides a cementing material and a preparation method thereof, wherein the composition of the cementing material is shown in a table 1, and the specific preparation steps of the cementing material are as follows:
s1, firing alunite tailings carried in copper ores for 35min at a temperature range of 670+/-10 ℃ to obtain alunite powder;
s2, mixing the obtained alum stone powder with the weighed nano silicon powder, titanium gypsum, quicklime, magnesium silicate and vinyltriethoxysilane, and grinding until the specific surface area of the mixture reaches 280-320m 2 And (3) between/kg, obtaining the cementing material.
Example 3
The embodiment of the invention provides a cementing material and a preparation method thereof, wherein the composition of the cementing material is shown in a table 1, and the specific preparation steps of the cementing material are as follows:
s1, firing alunite tailings carried in copper ores at a temperature range of 750+/-10 ℃ for 25min to obtain alunite powder;
s2, mixing the obtained alum stone powder with the weighed nano silicon powder, titanium gypsum, quicklime, aluminum silicate and vinyltriethoxysilane, and grinding until the specific surface area of the mixture reaches 280-320m 2 And (3) between/kg, obtaining the cementing material.
Comparative example 1
Comparative example 1 of the present invention provides a cement and a method for preparing the same as example 1, with the specific components only being that quicklime is not included in the cement component of this comparative example, and the specific components are shown in table 1.
Comparative example 2
Comparative example 1 of the present invention provides a cement and a preparation method thereof, which is the same as example 1, except that the activator component of the cement of the present comparative example does not contain sodium silicate, and the specific components are shown in table 1.
TABLE 1 specific Components of the gelling materials in examples 1-3 and comparative examples 1-2
Examples 4 to 6
Embodiments 4 to 6 of the present invention provide grouting materials, the compositions of which are shown in table 2, and the cementing materials used respectively correspond to the cementing materials prepared in embodiments 1 to 3, and the specific preparation steps are as follows:
s1, accurately weighing the mass (in grams) of the cementing material, the aggregate, the additive and the water, wherein the specific mass is shown in a table 1;
s2, uniformly mixing the weighed cementing material, aggregate and additive, pouring the mixture into a standard mortar stirrer, adding the weighed water, stirring at a rotating speed of 140r/min for 60S, stirring at a rotating speed of 280r/min for 30S, standing for 90S, shoveling the sputtering material on the inner wall of the stirrer into the stirrer by a shovel, and stirring at a rotating speed of 280r/min for 60S to obtain grouting material.
Comparative examples 3 to 4
Comparative examples 3 to 4 of the present invention provide a grouting material having a composition shown in Table 2, and the cementing materials used correspond to the cementing materials prepared in comparative examples 1 to 2, respectively, and the specific preparation steps are the same as those of examples 4 to 6.
Comparative example 5
Comparative example 1 of the present invention provides a grouting material, wherein the components of the grouting material are shown in table 2, and in comparison with example 4, comparative example 1 uses p.o42.5portland cement instead of the cement material in comparative example 4; the concrete preparation steps of the grouting material were the same as those of the grouting material in example 4.
Table 2 specific Components of grouting materials in examples 4 to 6 and comparative examples 3 to 5
Test example
The performance of the grouting materials obtained in examples 4 to 6 and comparative examples 3 to 5 was tested according to the following procedure:
(1) The fluidity of the grouting material was measured for an initial period of 30min and 60min using a grouting material flow cone funnel;
(2) Filling the evenly stirred grouting material into a standard triple test mold (40 mm 160 mm) evenly coated with butter, trowelling after evenly vibrating, standing for 24 hours at room temperature, removing the mold, putting the cured flat plate into a standard constant temperature curing box (the temperature is set to be 20+/-1 ℃ and the humidity is 95% RH), and respectively testing the compressive strength and the expansion rate during curing for 3d, 7d and 28d, wherein the specific results are shown in table 2.
TABLE 2 results of Performance test of the grouting materials obtained in examples 1 to 3 and comparative example 1
As can be found from the test results in Table 2, the fluidity and compressive strength of the grouting material prepared by using the alunite tailings in the waste copper ores as raw materials are superior to those of cement-based grouting materials, and the fluidity, compressive strength and expansion rate meet the III standard requirements of GB/T50448-2015 technical Specification for application of cement-based grouting materials.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the invention.
Claims (10)
1. The cementing material is characterized by comprising the following components in parts by weight:
alunite tailings entrained in copper ores: 100-200 parts of a compound containing,
nano silicon powder: 50-200 parts of a compound containing,
titanium gypsum: 60-80 parts of a compound, wherein the compound comprises,
quicklime: 40-70 parts of a water-soluble polymer,
exciting agent: 10-20 parts of a lubricant;
the activator includes silicate and organosilicon.
2. A cementitious material as set forth in claim 1, wherein said nano silicon powder has a specific surface area of 1200m 2 Above/kg, siO in the nano silicon powder 2 The content of (2) is more than 90%; and/or
The specific surface area of the titanium gypsum is 200-260m 2 Between/kg; and/or
The specific surface area of the quicklime is 200-240m 2 And the CaO content in the quicklime is more than 90 percent/kg.
3. The cementitious material of claim 1, wherein said silicate comprises at least one of sodium silicate, magnesium silicate, aluminum silicate, or potassium silicate, and said silicone is vinyltriethoxysilane.
4. A cementitious material as claimed in claim 3, wherein the mass ratio of silicate to vinyltriethoxysilane is from 8 to 9:1.
5. a method for preparing a cementitious material as claimed in any one of claims 1 to 4, comprising the steps of:
s1, firing alunite tailings carried in the copper ore at the temperature of 660-760 ℃ for 25-35min to obtain alunite powder;
s2, mixing the alum stone powder, the nano silicon powder, the titanium gypsum, the quicklime and the excitant, and grinding until the specific surface area is 280-320m 2 And (3) between/kg, obtaining the cementing material.
6. A grouting material, which is characterized by comprising the cementing material according to any one of claims 1 to 4 or the cementing material prepared by the preparation method according to claim 5, aggregate, additive and water;
wherein the mass ratio of the cementing material to the aggregate to the additive is 3-5:3-5:0.01-0.2, wherein the water accounts for 10-15wt% of the total mass of the cementing material, the aggregate and the additive.
7. The grouting material according to claim 6, wherein the grouting material comprises the following components in parts by mass:
the aggregate comprises: 20-40 mesh quartz sand: 250-300 parts of 40-70 mesh quartz sand: 100-150 parts of quartz sand with 70-120 meshes: 100-150 parts;
the additive comprises: water reducing agent: 1-2 parts of defoamer: 0.1-0.3 part of stabilizer: 0.5-1 part.
8. The grouting material according to claim 7, wherein the water reducing agent is at least one of a polycarboxylic acid high performance water reducing agent, a naphthalene water reducing agent, or a melamine water reducing agent.
9. The grouting material of claim 7, wherein the antifoaming agent is at least one of an organosilicon antifoaming agent, a polyether antifoaming agent, or a polyether modified silicon antifoaming agent.
10. The grouting material of claim 7, wherein the stabilizer is sodium laureth sulfate.
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| JP2007197286A (en) * | 2006-01-30 | 2007-08-09 | Denki Kagaku Kogyo Kk | Grout composition, mortar or concrete using same and grouting material |
| JP2017165625A (en) * | 2016-03-17 | 2017-09-21 | 太平洋マテリアル株式会社 | Grout composition |
| CN111807770A (en) * | 2020-07-13 | 2020-10-23 | 山东华迪建筑科技有限公司 | Ecological cement high-strength grouting material and preparation method thereof |
| CN112960962A (en) * | 2021-03-19 | 2021-06-15 | 河北充填采矿技术有限公司 | Non-cement-based water-grouting inorganic cementing material and preparation method and application thereof |
| CN114455904A (en) * | 2022-01-10 | 2022-05-10 | 南京迈越材料科技有限公司 | Shrinkage compensation composite material based on modified alunite tailings and preparation method thereof |
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| JPH10219245A (en) * | 1997-01-31 | 1998-08-18 | Okutama Kogyo Kk | Soil stabilizer |
| JP2007197286A (en) * | 2006-01-30 | 2007-08-09 | Denki Kagaku Kogyo Kk | Grout composition, mortar or concrete using same and grouting material |
| JP2017165625A (en) * | 2016-03-17 | 2017-09-21 | 太平洋マテリアル株式会社 | Grout composition |
| CN111807770A (en) * | 2020-07-13 | 2020-10-23 | 山东华迪建筑科技有限公司 | Ecological cement high-strength grouting material and preparation method thereof |
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