CN115403341B - Inorganic waterproof plugging material and preparation method thereof - Google Patents
Inorganic waterproof plugging material and preparation method thereof Download PDFInfo
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- CN115403341B CN115403341B CN202211165480.8A CN202211165480A CN115403341B CN 115403341 B CN115403341 B CN 115403341B CN 202211165480 A CN202211165480 A CN 202211165480A CN 115403341 B CN115403341 B CN 115403341B
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- plugging material
- waterproof plugging
- inorganic waterproof
- tackifying
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- 239000000463 material Substances 0.000 title claims abstract description 101
- 238000002360 preparation method Methods 0.000 title abstract description 14
- 239000000080 wetting agent Substances 0.000 claims abstract description 36
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 32
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 22
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 16
- 239000006004 Quartz sand Substances 0.000 claims abstract description 15
- 239000000839 emulsion Substances 0.000 claims abstract description 14
- 229920002678 cellulose Polymers 0.000 claims abstract description 10
- 239000001913 cellulose Substances 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims description 37
- 239000004568 cement Substances 0.000 claims description 33
- 229920002635 polyurethane Polymers 0.000 claims description 17
- 239000004814 polyurethane Substances 0.000 claims description 17
- 239000002904 solvent Substances 0.000 claims description 16
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 12
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 11
- 239000003054 catalyst Substances 0.000 claims description 11
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 10
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 9
- DDAQLPYLBPPPRV-UHFFFAOYSA-N [4-(hydroxymethyl)-2-oxo-1,3,2lambda5-dioxaphosphetan-2-yl] dihydrogen phosphate Chemical compound OCC1OP(=O)(OP(O)(O)=O)O1 DDAQLPYLBPPPRV-UHFFFAOYSA-N 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 8
- 239000003469 silicate cement Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 7
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 claims description 7
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 7
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 7
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 6
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 6
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 6
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 6
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 6
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 claims description 5
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 5
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 claims description 5
- INHCSSUBVCNVSK-UHFFFAOYSA-L lithium sulfate Inorganic materials [Li+].[Li+].[O-]S([O-])(=O)=O INHCSSUBVCNVSK-UHFFFAOYSA-L 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- RBTVSNLYYIMMKS-UHFFFAOYSA-N tert-butyl 3-aminoazetidine-1-carboxylate;hydrochloride Chemical group Cl.CC(C)(C)OC(=O)N1CC(N)C1 RBTVSNLYYIMMKS-UHFFFAOYSA-N 0.000 claims description 5
- 229920002126 Acrylic acid copolymer Polymers 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 239000004816 latex Substances 0.000 claims description 4
- 229920000126 latex Polymers 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 3
- 229940120146 EDTMP Drugs 0.000 claims description 3
- VQWWKYLNRCKQRP-UHFFFAOYSA-N N[Ca] Chemical compound N[Ca] VQWWKYLNRCKQRP-UHFFFAOYSA-N 0.000 claims description 3
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 claims description 3
- VSGNNIFQASZAOI-UHFFFAOYSA-L calcium acetate Chemical compound [Ca+2].CC([O-])=O.CC([O-])=O VSGNNIFQASZAOI-UHFFFAOYSA-L 0.000 claims description 3
- 239000001639 calcium acetate Substances 0.000 claims description 3
- 229960005147 calcium acetate Drugs 0.000 claims description 3
- 235000011092 calcium acetate Nutrition 0.000 claims description 3
- NFDRPXJGHKJRLJ-UHFFFAOYSA-N edtmp Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CCN(CP(O)(O)=O)CP(O)(O)=O NFDRPXJGHKJRLJ-UHFFFAOYSA-N 0.000 claims description 3
- DEFVIWRASFVYLL-UHFFFAOYSA-N ethylene glycol bis(2-aminoethyl)tetraacetic acid Chemical compound OC(=O)CN(CC(O)=O)CCOCCOCCN(CC(O)=O)CC(O)=O DEFVIWRASFVYLL-UHFFFAOYSA-N 0.000 claims description 3
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 claims description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 3
- YLGXILFCIXHCMC-JHGZEJCSSA-N methyl cellulose Chemical compound COC1C(OC)C(OC)C(COC)O[C@H]1O[C@H]1C(OC)C(OC)C(OC)OC1COC YLGXILFCIXHCMC-JHGZEJCSSA-N 0.000 claims description 2
- 238000005336 cracking Methods 0.000 abstract description 5
- 238000010257 thawing Methods 0.000 abstract description 4
- -1 polyoxyethylene Polymers 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 10
- 239000002585 base Substances 0.000 description 10
- 239000004567 concrete Substances 0.000 description 10
- 239000011398 Portland cement Substances 0.000 description 8
- 230000036571 hydration Effects 0.000 description 8
- 238000006703 hydration reaction Methods 0.000 description 8
- 229920006254 polymer film Polymers 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 230000008439 repair process Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 3
- 239000000920 calcium hydroxide Substances 0.000 description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 3
- 229910001424 calcium ion Inorganic materials 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000012673 precipitation polymerization Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007046 ethoxylation reaction Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000007774 longterm 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
- 230000035515 penetration Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
- C04B28/065—Calcium aluminosulfate cements, e.g. cements hydrating into ettringite
-
- 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2623—Polyvinylalcohols; Polyvinylacetates
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2641—Polyacrylates; Polymethacrylates
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/28—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/32—Polyethers, e.g. alkylphenol polyglycolether
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2618—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0045—Polymers chosen for their physico-chemical characteristics
- C04B2103/0057—Polymers chosen for their physico-chemical characteristics added as redispersable powders
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/44—Thickening, gelling or viscosity increasing agents
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/29—Frost-thaw resistance
-
- 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
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/72—Repairing or restoring existing buildings or building 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
- 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
Abstract
In order to solve the technical problems of low bonding strength and poor cracking resistance of the waterproof plugging material in the prior art, the application provides an inorganic waterproof plugging material and a preparation method thereof, wherein the inorganic waterproof plugging material comprises the following components in parts by weight: 300-500 parts of cementing material, 60-70 parts of quartz sand, 0.5-1 part of cellulose, 5-7 parts of redispersible emulsion powder, 0-3 parts of early strength agent, 0.5-1 part of tackifying wetting agent, 10-20 parts of active metakaolin and 10-20 parts of crack repairing agent. The inorganic waterproof plugging material provided by the application has high strength, high bonding strength with a basal plane and better crack resistance; also has the characteristics of better compressive strength, flexural strength, heat resistance and excellent freeze thawing cycle property.
Description
Technical Field
The application belongs to the technical field of building waterproof materials, and particularly relates to an inorganic waterproof plugging material and a preparation method thereof.
Background
With the rapid development of China, a large number of houses and infrastructures are built in China, and the smooth development of the buildings is free from concrete structural materials. The concrete is called concrete for short, cement and the like are used as cementing materials, sand and stone are used as aggregates, and the cement concrete is obtained by mixing the aggregate with water according to a certain proportion and stirring. The relatively low tensile strength and the more pores of the concrete make the concrete inevitably cracked under the actions of double or even multiple influencing factors such as environment, load and the like. These cracks provide a convenient path for the intrusion of hazardous media, which can severely lead to reduced concrete strength and structural durability, thereby creating significant economic and safety hazards. Therefore, the maintenance and repair problems of the concrete structure materials are increasingly emphasized.
Inorganic waterproof plugging materials are needed for maintenance and repair of concrete structural materials. The existing inorganic waterproof plugging material has the advantages of high strength, acid and alkali resistance, environmental protection, long-acting performance and the like, and has a very large market; however, some existing waterproof plugging materials containing silicate have the problems of low bonding strength, poor crack resistance and the like, and the problems of peeling, falling off, microcrack, water seepage and the like can occur after the use time.
Disclosure of Invention
Aiming at the technical problems of low bonding strength and poor cracking resistance of the existing waterproof plugging material, the application provides an inorganic waterproof plugging material and a preparation method thereof.
In order to solve the technical problems, the application provides an inorganic waterproof plugging material, which comprises the following components in parts by weight: 300-500 parts of cementing material, 60-70 parts of quartz sand, 0.5-1 part of cellulose, 5-7 parts of redispersible emulsion powder, 0-3 parts of early strength agent, 0.5-1 part of tackifying wetting agent, 10-20 parts of active metakaolin and 10-20 parts of crack repairing agent;
the tackifying wetting agent is polyurethane grafted polyoxyethylene type polymer.
Preferably, the cementing material is formed by mixing Portland cement and low-alkalinity sulfate cement, and the weight ratio of the Portland cement to the low-alkalinity sulfate cement is (1:7) - (3:1).
Preferably, the crack repairing agent includes at least one of hydroxyethylidene diphosphate, 2-phosphonobutane-1, 2, 4-tricarboxylic acid, ethylene glycol bis (2-aminoethylether) tetraacetic acid, aminotrimethylene phosphonic acid, and ethylenediamine tetramethylene phosphonic acid.
Preferably, the cellulose includes at least one of hydroxypropyl methyl cellulose ether and hydroxyethyl methyl cellulose ether.
Preferably, the redispersible emulsion powder comprises at least one of an ethylene-vinyl acetate copolymer and an acrylic acid copolymer.
Preferably, the early strength agent is lithium sulfate.
Preferably, the quartz sand is 60-140 meshes quartz sand
Preferably, the tackifying wetting agent is prepared by a precipitation polymerization method, and comprises the following steps:
sequentially adding 50-100 parts of polyurethane, 400-600 parts of solvent and 5-10 parts of catalyst into a reaction kettle, and then sealing the reaction kettle; vacuumizing, replacing with protective atmosphere, adding 200-300 parts of ethylene oxide into a reaction kettle, controlling the reaction temperature to be 80-150 ℃ by using a temperature controller and cooling water, reacting to obtain a tackifying wetting agent separated out from a solvent, cooling to room temperature, filtering materials in the reaction kettle to obtain a solid, washing, filtering and drying the solid to obtain the powdery tackifying wetting agent.
Preferably, the solvent comprises at least three of toluene, N-heptane, tetrahydrofuran, dimethyl sulfoxide, N-dimethylformamide, cyclohexane, acetone and dichloromethane; the catalyst comprises at least one of calcium acetate, aluminum acetylacetonate alkyl complex, mg/Al/Co complex, amino calcium and sodium ethoxide.
On the other hand, the application provides a preparation method of an inorganic waterproof plugging material, which comprises the following steps:
300-500 parts of cementing material, 60-70 parts of quartz sand, 0.5-1 part of cellulose, 5-7 parts of redispersible latex powder, 0-3 parts of early strength agent, 0.5-1 part of tackifying wetting agent, 10-20 parts of active metakaolin and 10-20 parts of crack repairing agent are added into a stirring container, and stirring is carried out for 20-40 min, thus obtaining the inorganic waterproof plugging material.
The beneficial effects are that:
compared with the prior art, the inorganic waterproof plugging material provided by the application has the advantages that the redispersible emulsion powder can form a polymer film with a three-dimensional net structure in the cement hydration process, the polymer film can effectively absorb energy required by microcrack formation and microcrack expansion, and the microcrack generation can be effectively prevented; when the energy exceeds the absorption capacity of the polymer film so that the crack is generated, the material can repair the generated crack by itself under the action of the crack repairing agent. Therefore, the waterproof plugging material can effectively resist microcracks under the dual actions of the emulsion powder and the crack repairing agent. The tackifying wetting agent has the effect of wetting the base surface, so that the waterproof plugging material can be better spread on the base surface, and the bonding strength between the waterproof plugging material and the base surface is enhanced. The active metakaolin not only can form silicate-like network structures similar to some natural minerals in the crust with more excellent performance and higher strength, but also can react with cement hydration products such as calcium hydroxide to generate C-S-H gel and the like, so that the cement bond is more compact, and the strength of the waterproof plugging material is improved.
The inorganic waterproof plugging material provided by the application has high strength, high bonding strength with a basal plane and better crack resistance; also has the characteristics of better compressive strength, flexural strength, heat resistance and excellent freeze thawing cycle property.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the application more clear, the application is further described in detail below with reference to the embodiments. 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 application.
The application provides an inorganic waterproof plugging material which comprises the following components in parts by weight: 300-500 parts of cementing material, 60-70 parts of quartz sand, 0.5-1 part of cellulose, 5-7 parts of redispersible emulsion powder, 0-3 parts of early strength agent, 0.5-1 part of tackifying wetting agent, 10-20 parts of active metakaolin and 10-20 parts of crack repairing agent;
the tackifying wetting agent is polyurethane grafted polyoxyethylene type polymer.
Specifically, the tackifying wetting agent provided by the application is a polyurethane grafted polyoxyethylene polymer. The tackifying wetting agent can wet the base surface and the waterproof plugging material, so that the waterproof plugging material can be better spread on the base surface, gaps between the base surface and the waterproof plugging material are reduced, intermolecular acting force between the base surface and the waterproof plugging material can be enhanced, and the bonding strength of the waterproof plugging material is enhanced. The viscosity increasing agent may be 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.9 part, 1.0 part, as long as the content of the viscosity increasing agent is 0.5 to 1 part.
The active metakaolin is an amorphous compound in a metastable state, and can form a silicate-like network structure similar to some natural minerals in the crust under the activation of alkali or sulfate, and the product is not mainly based on Van der Waals bonds and hydrogen bonds, but mainly based on ionic bonds and covalent bonds and assisted by Van der Waals bonds like the traditional cement, so that the active metakaolin has more excellent performance and higher strength. The active metakaolin can also react with cement hydration products such as calcium hydroxide to generate C-S-H gel and the like, so that the cement bond is more compact, and the cement strength is improved.
Compared with the prior art, the inorganic waterproof plugging material provided by the application has the following characteristics:
1. the redispersible emulsion powder can form a polymer film with a three-dimensional network structure in the cement hydration process, and the polymer film can effectively absorb energy required by microcrack formation and microcrack expansion, so that the product can effectively prevent microcrack generation. When the energy exceeds the absorption capacity of the polymer film so that the crack is generated, the material can repair the generated crack by itself under the action of the crack repairing agent. Therefore, the waterproof plugging material can effectively resist microcracks under the dual actions of the emulsion powder and the crack repairing agent.
2. The tackifying wetting agent in the application enables the inorganic waterproof plugging material to spread better on the base surface through wetting action, reduces gaps between the base surface and the waterproof plugging material, and can also enhance intermolecular acting force between the base surface and the waterproof plugging material, thereby enhancing bonding strength between the inorganic waterproof plugging material and the base surface.
3. The active metakaolin in the application not only can form silicate-like network structures similar to some natural minerals in the crust with more excellent performance and higher strength, but also can react with cement hydration products such as calcium hydroxide to generate C-S-H gel and the like, so that the cement bond is more compact, and the strength of the waterproof plugging material is improved.
The inorganic waterproof plugging material provided by the application has high strength, high bonding strength with a basal plane and better crack resistance; also has the characteristics of better compressive strength, flexural strength, heat resistance and excellent freeze thawing cycle property.
In some embodiments, the cementing material is formed by mixing Portland cement and low-alkalinity sulfate cement, and the weight ratio of the Portland cement to the low-alkalinity sulfate cement is (1:7) - (3:1).
Specifically, the weight ratio (1:7) - (3:1) of silicate cement and low-alkalinity sulfate cement is used for adjusting the setting time and strength of the inorganic waterproof plugging material by adjusting the mixing weight ratio of the silicate cement and the low-alkalinity sulfate cement. The weight ratio of Portland cement, low alkalinity sulfate cement, for example, may be 1:7, 1:6, 1:5, 1:4, 1:3, 1:1, 1.5:1, 2: 1. 3:1, (1:6) to (1:4), (1:5) to (1:1), etc., as long as the weight ratio (1:7) to (3:1) of the portland cement to the low-alkalinity sulfate cement is satisfied.
In some embodiments, the fracture repair agent includes at least one of hydroxyethylidene diphosphate, 2-phosphonobutane-1, 2, 4-tricarboxylic acid, ethylene glycol bis (2-aminoethyl ether) tetraacetic acid, aminotrimethylene phosphonic acid, and ethylenediamine tetramethylene phosphonic acid.
Specifically, when the waterproof plugging material is cracked, water can permeate into the material, and the crack repairing agent can be dissolved in water after encountering water and permeate into the material. During penetration, the crack repairing agent may complex with free calcium ions in the material to form an unstable calcium ion complex that is readily soluble in water. These calcium ion complexes continue to diffuse along with water in the cracks in the material structure, and when the complex encounters unhydrated cement particles or cement colloids, the original crack repairing agent is replaced by silicate ions, and more stable water-insoluble crystals or precipitates are generated, so that the cracks in the waterproof plugging material structure are plugged. The original crack repairing agent is changed into a free state again, and is diffused in the waterproof plugging material along with water until complexing with calcium ions again, so that a new round of crack repairing is performed. 10 to 20 parts of crack repairing agent can be 10 parts, 12 parts, 15 parts, 16 parts, 18 parts, 20 parts and the like.
In some embodiments, the cellulose comprises at least one of hydroxypropyl methylcellulose ether and hydroxyethyl methylcellulose ether.
In some embodiments, the redispersible latex powder is an ethylene-vinyl acetate copolymer or an acrylic acid copolymer.
Specifically, the redispersible emulsion powder can be quickly recovered in water to form emulsion, emulsion particles are uniformly dispersed along with the stirring process of the waterproof plugging material, and polymer particles are continuously deposited to form a polymer film with a three-dimensional net structure along with the hydration process of cement and the continuous increase of hydration products, so that the cement hydration products and aggregate are mutually bonded, and the bonding performance of the waterproof plugging material is improved. And the polymer film has relatively low elastic modulus and high deformability, so that the energy required by microcrack formation and microcrack expansion can be effectively absorbed, and the crack resistance of the plugging material is improved.
In some embodiments, the early strength agent is lithium sulfate.
In some embodiments, the silica sand is 60-140 mesh silica sand.
In some embodiments, the viscosified wetting agent is prepared by a precipitation polymerization process comprising the steps of:
sequentially adding 50-100 parts of polyurethane, 400-600 parts of solvent and 5-10 parts of catalyst into a reaction kettle, and then sealing the reaction kettle; vacuumizing, replacing with protective atmosphere, adding 200-300 parts of ethylene oxide into a reaction kettle, controlling the reaction temperature to be 80-150 ℃ by using a temperature controller and cooling water, reacting to obtain a tackifying wetting agent separated out from a solvent, cooling to room temperature, filtering materials in the reaction kettle to obtain a solid, washing, filtering and drying the solid to obtain the powdery tackifying wetting agent.
The specific operation steps of the tackifying wetting agent are as follows: sequentially adding 50-100 parts of polyurethane, 400-600 parts of solvent and 5-10 parts of catalyst into a clean and dry reaction kettle, and then sealing the reaction kettle; vacuumizing, replacing with protective atmosphere, and repeating for three times. Then 200-300 parts of ethylene oxide is slowly added into the reaction kettle, the reaction temperature is controlled to be 80-150 ℃ by a temperature controller and cooling water, the reaction is carried out, and the hydroxyl on polyurethane can carry out ethoxylation reaction with the ethylene oxide, so that polyoxyethylene is grafted on the polyurethane. As the reaction proceeds, the target polymer becomes less and less soluble in the solvent and eventually precipitates from the solvent. And cooling to room temperature after the reaction is finished, filtering materials in the reaction kettle to obtain solids, washing, filtering and drying the solids to obtain the powdery tackifying wetting agent.
Specifically, the protective atmosphere includes nitrogen and an inert gas.
In some embodiments, the solvent comprises at least three of toluene, N-heptane, tetrahydrofuran, dimethyl sulfoxide, N-dimethylformamide, cyclohexane, acetone, and methylene chloride; the catalyst comprises at least one of calcium acetate, aluminum acetylacetonate alkyl complex, mg/Al/Co complex, amino calcium and sodium ethoxide.
On the other hand, the application provides a preparation method of an inorganic waterproof plugging material, which comprises the following steps:
300-500 parts of cementing material, 60-70 parts of quartz sand, 0.5-1 part of cellulose, 5-7 parts of redispersible emulsion powder, 0-3 parts of early strength agent, 0.5-1 part of tackifying wetting agent, 10-20 parts of active metakaolin and 10-20 parts of crack repairing agent are added into a stirring container, and stirring is carried out for 20-40 min, thus obtaining the inorganic waterproof plugging material.
The application is further illustrated by the following examples.
Example 1
Preparation of a tackifying wetting agent:
sequentially adding 70 parts of polyurethane, 500 parts of solvent and 7 parts of catalyst into a clean and dry reaction kettle, wherein the solvent comprises a mixed solvent of dimethyl sulfoxide, N-dimethylformamide, toluene, acetone and N-heptane; the catalyst is Mg/Al/Co composite. Then the reaction kettle is closed; vacuum was applied, replaced with nitrogen, and repeated three times. Then 250 parts of ethylene oxide is slowly added into a reaction kettle, the reaction temperature is controlled to be 140 ℃ by a temperature controller and cooling water, the reaction is cooled to room temperature after the reaction is finished, materials in the reaction kettle are filtered to obtain solid, and the solid is washed, filtered and dried to obtain the powdery tackifying wetting agent of polyurethane grafted polyoxyethylene. Preparation of an inorganic waterproof plugging material:
300 parts of silicate cement, 100 parts of low-alkalinity sulphoaluminate cement, 20 parts of a mixture of hydroxyethylidene diphosphate and 2-phosphonobutane-1, 2, 4-tricarboxylic acid, 68 parts of quartz sand, 0.7 part of hydroxypropyl methyl cellulose ether, 7 parts of ethylene-vinyl acetate copolymer, 2 parts of lithium sulfate, 10 parts of active metakaolin and 1 part of the prepared powdery tackifying wetting agent of polyurethane terminal grafted polyoxyethylene.
And (3) putting various raw materials into a mixer, and mixing for 30min to obtain the multifunctional inorganic waterproof plugging material.
Example 2
Example 2 differs from example 1 in the preparation of the inorganic waterproof plugging material, specifically as follows:
100 parts of silicate cement, 300 parts of low-alkalinity sulphoaluminate cement, 20 parts of a mixture of hydroxyethylidene diphosphate and 2-phosphonobutane-1, 2, 4-tricarboxylic acid, 68 parts of quartz sand, 0.5 part of hydroxyethyl methyl cellulose ether, 7 parts of acrylic acid copolymer, 12 parts of active metakaolin and 0.5 part of powdery tackifying wetting agent of polyurethane end grafted polyoxyethylene prepared in example 1. And (3) putting various raw materials into a mixer, and mixing for 30min to obtain the multifunctional inorganic waterproof plugging material.
Example 3
Example 3 differs from example 1 in the preparation of the inorganic waterproof plugging material, specifically as follows:
50 parts of Portland cement, 350 parts of low-alkalinity sulphoaluminate cement, 15 parts of a mixture of hydroxyethylidene diphosphate and 2-phosphonobutane-1, 2, 4-tricarboxylic acid, 68 parts of 100-mesh quartz sand, 0.5 part of hydroxyethyl methyl cellulose ether, 7 parts of ethylene-vinyl acetate copolymer, 15 parts of active metakaolin and 1 part of a powdery tackifying wetting agent of polyurethane end-grafted polyoxyethylene prepared in example 1. And (3) putting various raw materials into a mixer, and mixing for 30min to obtain the multifunctional inorganic waterproof plugging material.
Example 4
Preparation of a tackifying wetting agent:
adding 90 parts of polyurethane, 500 parts of solvent and 7 parts of catalyst which are subjected to treatment into a clean and dry reaction kettle in sequence, wherein the solvent comprises a mixed solvent of dimethyl sulfoxide, N-dimethylformamide, toluene, acetone and N-heptane; the catalyst is Mg/Al/Co composite. Then the reaction kettle is closed; vacuum was applied, replaced with nitrogen, and repeated three times. Then 200 parts of ethylene oxide is slowly added into a reaction kettle, the reaction temperature is controlled to be 140 ℃ by a temperature controller and cooling water, the reaction is cooled to room temperature after the reaction is finished, materials in the reaction kettle are filtered to obtain solid, and the solid is washed, filtered and dried to obtain the powdery tackifying wetting agent of polyurethane grafted polyoxyethylene.
Example 4 was prepared in the same manner as the inorganic waterproof plugging material of example 1, except that the proportion of polyurethane to polyoxyethylene in the molecular structure of the tackifying wetting agent of example 4 was different.
Example 5
Example 5 differs from example 4 in that the preparation method of the inorganic waterproof plugging material is different, specifically as follows:
preparation of an inorganic waterproof plugging material:
200 parts of silicate cement, 300 parts of low-alkalinity sulphoaluminate cement, 10 parts of a mixture of hydroxyethylidene diphosphate and 2-phosphonobutane-1, 2, 4-tricarboxylic acid, 62 parts of quartz sand, 0.5 part of hydroxypropyl methyl cellulose ether, 5 parts of ethylene-vinyl acetate copolymer, 20 parts of active metakaolin and 1 part of the powdery tackifying wetting agent prepared in example 4. And (3) putting various raw materials into a mixer, and mixing for 30min to obtain the multifunctional inorganic waterproof plugging material.
Comparative example 1
Comparative example 1 differs from example 1 in that the inorganic waterproof plugging material is prepared by a different method, and the tackifying wetting agent is not added in comparative example 1, specifically as follows:
300 parts of silicate cement, 100 parts of low-alkalinity sulphoaluminate cement, 20 parts of hydroxyethylidene diphosphate, 68 parts of 100-mesh quartz sand, 0.7 part of hydroxypropyl methyl cellulose ether, 7 parts of ethylene-vinyl acetate copolymer, 3 parts of lithium sulfate and 10 parts of active metakaolin are weighed. And (3) putting various raw materials into a mixer, and mixing for 30min to obtain the multifunctional inorganic waterproof plugging material.
Testing the Performance of inorganic waterproof leaking-stopping Material
According to GB23440-2009 standard of inorganic waterproof leakage-stopping materials, GB/T1346-2011 method for testing water consumption, setting time and stability of cement standard consistency, GB/T17671-1999 method for testing cement mortar strength, GB175-2007 general Portland cement, JC/T985-2005 cement-based self-leveling mortar for ground, GBJ82-1985 method for testing long-term performance and durability of ordinary concrete, and water, the method comprises the following steps: the performance of examples 1 to 5 and comparative examples 1 to 3 was tested with the mass ratio of inorganic waterproof plugging material=0.35:1, and the specific test results are shown in table 1.
TABLE 1 results of the tests for examples 1-5 and comparative examples 1-3
As shown in Table 1, the inorganic waterproof plugging materials prepared in examples 1-5 meet the requirements of GB23440-2009 Standard of inorganic waterproof plugging materials in various indexes. The comparative example 1, in which no adhesion promoting wetting agent was added, had a bonding strength far lower than that of examples 1 to 5, and at the same time, compressive strength and flexural strength were also lower than those of examples 1 to 5, shows that the addition of the adhesion promoting wetting agent to the inorganic waterproof plugging material can make the inorganic waterproof plugging material spread well on the base surface, enhance the molecular force between the base surface and the waterproof plugging material, make the bonding strength of the inorganic waterproof plugging material and the base surface increased, and also improve the compressive strength and flexural strength of the inorganic waterproof plugging material. Examples 1-5 all have no cracking, peeling and falling off, which shows that the added crack repairing agent and the emulsion powder cooperate to have the anti-cracking effect.
The inorganic waterproof plugging material prepared by the application has high bonding strength, high compressive strength and flexural strength and large impervious pressure of a test piece; the product is placed for 5 hours at the temperature of 100 ℃ and has no cracking, peeling and falling off, and has better heat resistance; and has better freeze-thawing cycle performance and crack resistance.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.
Claims (6)
1. An inorganic waterproof plugging material is characterized by comprising the following components in parts by weight: 300-500 parts of cementing material, 60-70 parts of quartz sand, 0.5-1 part of cellulose, 5-7 parts of redispersible emulsion powder, 0-3 parts of early strength agent, 0.5-1 part of tackifying wetting agent, 10-20 parts of active metakaolin and 10-20 parts of crack repairing agent;
the crack repairing agent is at least one of hydroxyethylidene diphosphate, 2-phosphonobutane-1, 2, 4-tricarboxylic acid, ethylene glycol bis (2-aminoethyl ether) tetraacetic acid, aminotrimethylene phosphonic acid and ethylenediamine tetramethylene phosphonic acid;
the tackifying wetting agent is prepared by the following steps: sequentially adding 50-100 parts of polyurethane, 400-600 parts of solvent and 5-10 parts of catalyst into a reaction kettle, and then sealing the reaction kettle; vacuumizing, replacing with a protective atmosphere, adding 200-300 parts of ethylene oxide into a reaction kettle, controlling the reaction temperature to be 80-150 ℃ by using a temperature controller and cooling water, reacting to obtain a tackifying wetting agent separated out from a solvent, cooling to room temperature, filtering materials in the reaction kettle to obtain a solid, washing, filtering and drying the solid to obtain a powdery tackifying wetting agent;
the catalyst is at least one of calcium acetate, acetylacetonate alkyl aluminum complex, mg/Al/Co complex, amino calcium and sodium ethoxide;
the cementing material is formed by mixing silicate cement and low-alkalinity sulfate cement, and the weight ratio of the silicate cement to the low-alkalinity sulfate cement is (1:7) - (3:1).
2. The inorganic waterproof plugging material of claim 1, wherein said cellulose is at least one of hydroxypropyl methylcellulose ether and hydroxyethyl methylcellulose ether.
3. The inorganic waterproof plugging material according to claim 1, wherein the redispersible latex powder is at least one of an ethylene-vinyl acetate copolymer and an acrylic acid copolymer.
4. The inorganic waterproof plugging material according to claim 1, wherein the early strength agent is lithium sulfate; the quartz sand is 60-140 meshes.
5. The inorganic waterproof plugging material according to claim 1, wherein the solvent is at least three of toluene, N-heptane, tetrahydrofuran, dimethyl sulfoxide, N-dimethylformamide, cyclohexane, acetone, and methylene chloride.
6. A method for preparing the inorganic waterproof plugging material according to any one of claims 1 to 5, comprising the following steps:
300-500 parts of cementing material, 60-70 parts of quartz sand, 0.5-1 part of cellulose, 5-7 parts of redispersible latex powder, 0-3 parts of early strength agent, 0.5-1 part of tackifying wetting agent, 10-20 parts of active metakaolin and 10-20 parts of crack repairing agent are added into a stirring container, and stirring is carried out for 20-40 min, so that the inorganic waterproof plugging material is prepared.
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