CN116514497B - Environment-friendly waterproof grouting material - Google Patents
Environment-friendly waterproof grouting material Download PDFInfo
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- CN116514497B CN116514497B CN202211712382.1A CN202211712382A CN116514497B CN 116514497 B CN116514497 B CN 116514497B CN 202211712382 A CN202211712382 A CN 202211712382A CN 116514497 B CN116514497 B CN 116514497B
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- waterproof
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- water
- stirring
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- 239000000463 material Substances 0.000 title claims abstract description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 92
- 239000007863 gel particle Substances 0.000 claims abstract description 68
- 239000002131 composite material Substances 0.000 claims abstract description 57
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 20
- 239000011707 mineral Substances 0.000 claims abstract description 20
- 239000000843 powder Substances 0.000 claims abstract description 20
- 239000004568 cement Substances 0.000 claims abstract description 17
- 239000010881 fly ash Substances 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 238000012545 processing Methods 0.000 claims abstract description 12
- 239000002253 acid Substances 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 68
- 239000007788 liquid Substances 0.000 claims description 30
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 27
- 239000008367 deionised water Substances 0.000 claims description 27
- 229910021641 deionized water Inorganic materials 0.000 claims description 27
- 239000002135 nanosheet Substances 0.000 claims description 25
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 22
- 239000006185 dispersion Substances 0.000 claims description 22
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 claims description 20
- 238000002360 preparation method Methods 0.000 claims description 19
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 18
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 18
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 150000004685 tetrahydrates Chemical class 0.000 claims description 16
- 238000004108 freeze drying Methods 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 15
- 238000005406 washing Methods 0.000 claims description 15
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 14
- 239000012153 distilled water Substances 0.000 claims description 14
- 239000000654 additive Substances 0.000 claims description 13
- 230000000996 additive effect Effects 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 12
- 239000000047 product Substances 0.000 claims description 11
- 239000002244 precipitate Substances 0.000 claims description 10
- 239000008234 soft water Substances 0.000 claims description 10
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 9
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 claims description 9
- 239000011668 ascorbic acid Substances 0.000 claims description 9
- 229960005070 ascorbic acid Drugs 0.000 claims description 9
- 235000010323 ascorbic acid Nutrition 0.000 claims description 9
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 9
- 239000012279 sodium borohydride Substances 0.000 claims description 9
- 229910000033 sodium borohydride Inorganic materials 0.000 claims description 9
- 239000001509 sodium citrate Substances 0.000 claims description 9
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 9
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 claims description 8
- DBCAQXHNJOFNGC-UHFFFAOYSA-N 4-bromo-1,1,1-trifluorobutane Chemical compound FC(F)(F)CCCBr DBCAQXHNJOFNGC-UHFFFAOYSA-N 0.000 claims description 8
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 claims description 8
- KWLMIXQRALPRBC-UHFFFAOYSA-L hectorite Chemical compound [Li+].[OH-].[OH-].[Na+].[Mg+2].O1[Si]2([O-])O[Si]1([O-])O[Si]([O-])(O1)O[Si]1([O-])O2 KWLMIXQRALPRBC-UHFFFAOYSA-L 0.000 claims description 8
- 229910000271 hectorite Inorganic materials 0.000 claims description 8
- 238000009210 therapy by ultrasound Methods 0.000 claims description 8
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 7
- 238000011049 filling Methods 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 230000032683 aging Effects 0.000 claims description 5
- 239000012300 argon atmosphere Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 claims description 5
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 239000002562 thickening agent Substances 0.000 claims description 4
- 239000006004 Quartz sand Substances 0.000 claims description 3
- 239000002518 antifoaming agent Substances 0.000 claims description 3
- 239000003469 silicate cement Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 230000008595 infiltration Effects 0.000 abstract description 5
- 238000001764 infiltration Methods 0.000 abstract description 5
- 239000003513 alkali Substances 0.000 abstract description 2
- 230000004888 barrier function Effects 0.000 abstract description 2
- 230000002401 inhibitory effect Effects 0.000 abstract description 2
- 230000035515 penetration Effects 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 55
- 238000012360 testing method Methods 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 11
- 239000002002 slurry Substances 0.000 description 5
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 238000005119 centrifugation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000012670 alkaline solution Substances 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002064 nanoplatelet Substances 0.000 description 2
- 239000002073 nanorod Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000000527 sonication Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical group [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- RBNPOMFGQQGHHO-UHFFFAOYSA-N glyceric acid Chemical compound OCC(O)C(O)=O RBNPOMFGQQGHHO-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical group NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000011185 multilayer composite material Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- -1 polyoxypropylene glycerol Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 239000012745 toughening agent 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
- C04B28/02—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
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
- C04B2111/70—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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Sealing Material Composition (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
本发明涉及建筑工程材料技术领域，具体涉及一种环保防水注浆料，包括如下重量份原料组分：复合水泥100‑150份、粉煤灰20‑30份、矿粉10‑20份、骨料50‑70份、防水凝胶颗粒8‑13份、外加剂3‑8份。本发明中的防水注浆料，通过在常规原料的基础上添加了防水凝胶颗粒，并且对防水凝胶颗粒进行了加工处理，该注浆料在注浆后，含有的改性防水凝胶颗粒不仅可以对注浆料中形成的裂缝进行填充，提高注浆料的致密性，从而增强其强度，而且还可以在注浆料内构建形成阻隔性的防水凝胶层，从而有效的抑制了水分的下渗，实现高防水的效果，同时也可以阻碍腐蚀性介质的渗入，提高其耐酸碱性。The present invention relates to the technical field of building engineering materials, and in particular to an environmentally friendly waterproof grouting material, comprising the following raw material components by weight: 100-150 parts of composite cement, 20-30 parts of fly ash, 10-20 parts of mineral powder, 50-70 parts of aggregate, 8-13 parts of waterproof gel particles, and 3-8 parts of admixture. The waterproof grouting material of the present invention is prepared by adding waterproof gel particles on the basis of conventional raw materials, and processing the waterproof gel particles. After grouting, the modified waterproof gel particles contained in the grouting material can not only fill the cracks formed in the grouting material, improve the compactness of the grouting material, thereby enhancing its strength, but also construct a barrier waterproof gel layer in the grouting material, thereby effectively inhibiting the infiltration of water and achieving a high waterproof effect, and can also hinder the penetration of corrosive media and improve its acid and alkali resistance.
Description
Technical Field
The invention relates to the technical field of building engineering materials, in particular to an environment-friendly waterproof grouting material.
Background
The grouting is also called grouting, which is to prepare a certain material into slurry, and inject the slurry into a stratum or a crack by grouting equipment to expand, gel or solidify the slurry so as to achieve the aim of reinforcing surrounding rock or preventing seepage, the flowing process of the grouting slurry is the combined effect of the slurry and a grouting medium, and the existing crack penetration grouting material and grouting theory are difficult to meet the actual engineering needs because the engineering rock body is under the complex hydrogeological conditions such as weak water seepage and the like, and the grouting material selection is one of the key conditions of preventing seepage of the surrounding rock, and has very important practical significance for engineering such as urban underground space and the like.
For example, the patent of the invention with publication number CN107235688A discloses a waterproof grouting material for the back of a GIL utility tunnel and a grouting method thereof, wherein a waterproof layer is formed on the surface of the grouting material by adding waterproof emulsion so as to realize a waterproof effect, and as the waterproof layer is formed on the surface of the grouting material, the waterproof layer has a good waterproof effect in the prior casting process, but is easily broken due to the influence of external factors along with the time, so that the waterproof effect is weakened, and after the grouting material is hardened, cracks are easily formed in the grouting material and gradually increase under the action of stress, and as the waterproof layer cannot fill the cracks, the waterproof layer is damaged while the cracks are increased, so that the operation requirement of high waterproof performance cannot be met.
Disclosure of Invention
The invention aims to provide an environment-friendly waterproof grouting material, which is used for filling cracks formed in the grouting material and constructing a waterproof gel layer in the grouting material, so that infiltration of moisture is effectively inhibited, and a high waterproof effect is realized.
In order to achieve the above purpose, the present invention provides the following technical solutions:
an environment-friendly waterproof grouting material comprises the following raw materials, by weight, 100-150 parts of composite cement, 20-30 parts of fly ash, 10-20 parts of mineral powder, 50-70 parts of aggregate, 8-13 parts of waterproof gel particles and 3-8 parts of an additive;
the preparation method of the waterproof grouting material comprises the following steps:
Weighing the raw material components according to parts by weight, processing waterproof gel particles to obtain modified waterproof gel particles, pouring the modified waterproof gel particles, the composite cement, the fly ash, the mineral powder, the aggregate and the additive into a bin, uniformly stirring to obtain a mixed material, pouring the mixed material into a stirring hopper of an integrated stirring and conveying machine, connecting a soft water pipe to a water filling port of the integrated stirring and conveying machine, connecting the other end of the soft water pipe to a water source joint of a construction site, adding required water through a liquid flowmeter according to the requirement of water, and continuously stirring for 2-3min after adding the required water into a dry mixture in the integrated stirring and grouting machine to obtain the required grouting material;
The processing treatment of the waterproof gel particles specifically comprises the following steps:
1) Sequentially adding cetyl trimethyl ammonium bromide, distilled water, chloroauric acid tetrahydrate and sodium citrate solution into a container, fully stirring and mixing in a water bath at 30-35 ℃, then rapidly adding sodium borohydride solution, continuously stirring for 2-5min, and standing for 3-6h to obtain seed solution;
2) Sequentially adding cetyl trimethyl ammonium bromide, distilled water, chloroauric acid tetrahydrate and silver nitrate solution into a container, fully stirring and mixing in a water bath at 30-35 ℃, then adding ascorbic acid solution and waterproof gel particles, fully stirring, quickly adding seed solution, continuously standing in the water bath for 12-16h, centrifuging, washing, and freeze-drying to obtain modified waterproof gel particles.
As a further preferable scheme of the invention, the seed solution comprises the following components of (3-5) g (95-120) mL (2.5-3.0) mL (5-8) mL (0.5-0.8) and (3-5) g of cetyltrimethylammonium bromide, distilled water, chloroauric tetrahydrate, sodium citrate solution and sodium borohydride solution;
The concentration of the chloroauric acid tetrahydrate is 10-16mmol/L;
the concentration of the sodium citrate solution is 10-16mmol/L;
the concentration of the sodium borohydride solution is 10-13mmol/L.
As a further preferable mode of the invention, the dosage proportion of the cetyltrimethylammonium bromide, distilled water, chloroauric tetrahydrate, silver nitrate solution, ascorbic acid solution, waterproof gel particles and seed solution is (3.5-4.0) g (93-100) mL (5.2-6.3) mL (1.0-1.5) mL (0.6-1.0) mL (2-5) g (1.6-2.3) mL;
the concentration of the silver nitrate solution is 10-16mmol/L;
the concentration of the ascorbic acid solution is 0.1-0.2mol/L.
As a further preferable scheme of the invention, the composite cement consists of silicate cement and sulphoaluminate cement according to the mass ratio of 1 (1-3);
The additive consists of a water reducer, a thickener, a defoaming agent and a retarder according to the mass ratio of 1 (0.5-0.9) (0.3-0.6) (1.2-1.8);
the grade of the fly ash is not lower than that of the secondary fly ash, and the fineness is 500-1500 meshes;
the mineral powder consists of S95-grade mineral powder and S75-grade mineral powder according to the mass ratio of 1 (0.3-0.6);
The aggregate consists of (0.2-0.5) and (1.2-1.7) of quartz sand with the particle size of 0.5-1.0mm, 1-2mm and 2-4mm and three different particle sizes according to the mass ratio of 1 (0.2-0.5).
As a further preferable embodiment of the present invention, the preparation method of the waterproof gel particles is as follows:
1) Adding hectorite into deionized water, fully stirring to obtain a dispersion liquid, sequentially adding acrylamide, methacryloxypropyl trimethoxy silane, alpha-methacrylic acid, ethylene glycol dimethacrylate and potassium persulfate, and fully and uniformly mixing to obtain a composite gel solution;
2) Adding the nano-sheet composite material into a composite gel solution, transferring the composite gel solution into an aging tank after deoxidization after ultrasonic dispersion, reacting for 45-50 hours after sealing, taking out the product after the reaction is finished, and crushing and freeze-drying the product to obtain the waterproof gel particles.
As a further preferable mode of the invention, the compound gel solution comprises the following components of hectorite, deionized water, acrylamide, methacryloxypropyl trimethoxy silane, alpha-methacrylic acid, ethylene glycol dimethacrylate and potassium persulfate in the proportion of (1-5) g (100-160) mL (18-26) g (3-6) g (10-15) g (0.3-0.7) g (0.1-0.3) g.
As a further preferable scheme of the invention, the mass volume ratio of the nano-sheet composite material to the composite gel solution is 1g (30-50) mL;
the reaction temperature is 60-70 ℃.
As a further preferable scheme of the invention, the preparation method of the nano-sheet composite material comprises the following steps:
1) Adding lithium fluoride into hydrochloric acid solution, stirring and dissolving, adding titanium aluminum carbide, reacting at 35-40 ℃ for 23-27h, repeatedly washing the obtained product with deionized water, dispersing the precipitate in enough deionized water, performing ultrasonic treatment in argon atmosphere for 30-50min, centrifuging, and taking out the lower precipitate to obtain multilayer titanium carbide particles;
2) Dispersing the multi-layer titanium sesquicarbide particles in deionized water to obtain a dispersion liquid, adding sodium hydroxide into the dispersion liquid, stirring at room temperature for reaction for 24-30h, repeatedly washing with deionized water after the reaction is finished, and freeze-drying to obtain the nano-sheet composite material.
As a further preferable mode of the invention, the dosage proportion of the lithium fluoride, the hydrochloric acid solution and the titanium aluminum carbide is (1-3) g (20-30) mL (1-3) g;
The concentration of the hydrochloric acid solution is 9-10mol/L;
the power of the ultrasonic treatment is 100-200W;
The centrifugal rotating speed is 4000-5000r/min, and the centrifugal time is 30-40min;
the concentration of the dispersion liquid is 3-8mg/L;
The dosage ratio of the sodium hydroxide to the dispersion liquid is (3.2-4.0) g (40-60) mL.
Compared with the prior art, the invention has the beneficial effects that:
In the invention, methacryloxypropyl trimethoxy silane is used as a silicon source, hectorite is used as a toughening agent and an inorganic cross-linking agent, ethylene glycol dimethacrylate is used as an organic cross-linking agent, and is matched with acrylamide and alpha-methacrylic acid to form a composite gel solution, and a nano-sheet composite material is added to form waterproof gel particles through polymerization; wherein, the acrylamide and the alpha-methacrylic acid monomer are polymerized to form a compact three-dimensional grid structure, which has good viscoelasticity and temperature resistance, can deform under the action of pressure and enter into gaps with smaller scale in grouting material, the gaps are filled to play a role of improving the compactness of the internal structure of the grouting material, thereby inhibiting the infiltration of water and playing a role of water prevention, simultaneously, in order to prevent the collapse of the structure of the waterproof gel particles caused by the large deformation of the waterproof gel particles under the action of external force, the waterproof effect is influenced, in the invention, the deformation resistance of the nano-sheet composite material is further improved by introducing the nano-sheet composite material into the waterproof gel particles, thereby reducing the deformation of the nano-sheet composite material, the nano-sheet composite material takes titanium aluminum carbide as a raw material, the impurities in the titanium aluminum carbide are removed by ultrasonic treatment with low power and short time, thus the unpeeled multi-layer titanium carbide particles are obtained, the nano-sheet composite material is used as a precursor, the precursor is etched in the alkaline solution for a long time, the effect of the alkaline solution is weaker, thus obtaining the surface etched main body structure is still formed into a multi-layer composite material, and the nano-sheet composite material is cross-linked and a cross-linked structure is formed in the cross-linked structure, the spacing of the multi-layer lamellar structures is also shortened, so that the multi-layer lamellar structures can be mutually embedded and inserted to form connection points, the overall stability of the crosslinked network structure is enhanced, a novel high-stability crosslinked network is formed by constructing the inside of the waterproof gel particles, the resistance of the waterproof gel particles to external force is effectively improved, and deformation can be effectively controlled when the waterproof gel particles are extruded by the external force, so that the collapse of the structure can not occur.
In order to further improve the waterproof effect of the grouting material, the waterproof gel particles are processed, the waterproof gel particles are used as a matrix, a nanorod layer is formed on the surface of the matrix by deposition, so that modified waterproof gel particles are obtained, when the modified waterproof gel particles are subjected to the action of external force, the nanorods deposited on the surface are mutually collided and extruded, and form a connecting body, so that the modified waterproof gel particles are mutually connected, and a three-dimensional gel layer is formed.
According to the waterproof grouting material, the waterproof gel particles are added on the basis of conventional raw materials, and are processed, after grouting, the modified waterproof gel particles contained in the grouting material can fill cracks formed in the grouting material, so that the compactness of the grouting material is improved, the strength of the grouting material is enhanced, and a waterproof gel layer with barrier property can be constructed in the grouting material, so that the infiltration of water is effectively inhibited, the high waterproof effect is realized, the infiltration of corrosive media is also prevented, and the acid and alkali resistance of the grouting material is improved.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the embodiment of the invention, the composite cement consists of silicate cement and sulphoaluminate cement according to the mass ratio of 1:2;
the additive consists of a water reducer, a thickener, a defoaming agent and a retarder according to the mass ratio of 1:0.5:0.3:1.4;
the grade of the fly ash is not lower than that of the secondary fly ash, and the fineness is 1000 meshes;
the mineral powder consists of S95-grade mineral powder and S75-grade mineral powder according to the mass ratio of 1:0.3;
The aggregate consists of quartz sand with the particle size of 0.5-1.0mm, 1-2mm and 2-4mm and three different particle sizes according to the mass ratio of 1:0.2:1.6.
In the embodiment of the invention, the water reducer is melamine sulfonate formaldehyde polycondensate, the thickener is carboxymethyl cellulose, the defoamer is polyoxypropylene glycerol ether, and the retarder is sodium lignin sulfonate.
Example 1
The environment-friendly waterproof grouting material is characterized by comprising the following raw materials of, by weight, 100 parts of composite cement, 20 parts of fly ash, 10 parts of mineral powder, 50 parts of aggregate, 8 parts of waterproof gel particles and 3 parts of additive;
the preparation method of the waterproof grouting material comprises the following steps:
Weighing the raw material components according to parts by weight, processing waterproof gel particles to obtain modified waterproof gel particles, pouring the modified waterproof gel particles, the composite cement, the fly ash, the mineral powder, the aggregate and the additive into a bin, uniformly stirring to obtain a mixed material, pouring the mixed material into a stirring hopper of an integrated stirring and conveying machine, connecting a soft water pipe to a water filling port of the integrated stirring and conveying machine, connecting the other end of the soft water pipe to a water source joint of a construction site, adding required water through a liquid flowmeter according to the requirement of water, and continuously stirring for 2min after adding the required water into a dry mixture in the integrated stirring and grouting machine to obtain the required grouting material;
Wherein, the processing treatment of the waterproof gel particles specifically comprises the following steps:
1) Sequentially adding 3g of cetyltrimethylammonium bromide, 95mL of distilled water, 2.5mL of chloroauric tetrahydrate with the concentration of 10mmol/L and 5mL of sodium citrate solution with the concentration of 10mmol/L into a container, fully stirring and mixing in a water bath at 30 ℃, then rapidly adding 0.5mL of sodium borohydride solution with the concentration of 10mmol/L, continuously stirring for 2min, and standing for 3h to obtain seed liquid;
2) 3.5g of cetyltrimethylammonium bromide, 93mL of distilled water, 5.2mL of chloroauric tetrahydrate with the concentration of 10mmol/L and 1.0mL of silver nitrate solution with the concentration of 10mmol/L are sequentially added into a container, fully stirred and mixed in a water bath at 30 ℃, then 0.6mL of ascorbic acid solution with the concentration of 0.1mol/L and 2g of waterproof gel particles are added, after fully stirring, 1.6mL of seed solution is quickly added, standing is continued in the water bath for 12h, and after centrifugation and washing, freeze drying are carried out, modified waterproof gel particles are obtained.
The preparation method of the waterproof gel particles comprises the following steps:
1) Adding 1g of hectorite into 100mL of deionized water, fully stirring to obtain a dispersion liquid, adding 18g of acrylamide, fully stirring to obtain a mixed dispersion liquid, sequentially adding 3g of methacryloxypropyl trimethoxysilane and 10g of alpha-methacrylic acid, fully stirring, adding 0.3g of ethylene glycol dimethacrylate and 0.1g of potassium persulfate, and fully and uniformly mixing to obtain a composite gel solution;
2) Adding the nano-sheet composite material into a composite gel solution according to the mass-volume ratio of 1g to 30mL, performing ultrasonic dispersion for 10min at 300W, transferring into an aging tank after deoxidization, sealing, reacting for 45h at 60 ℃, taking out the product after the reaction is finished, and performing crushing and freeze drying to obtain the waterproof gel particles.
The preparation method of the nano-sheet composite material comprises the following steps:
1) Adding 1g of lithium fluoride into 20mL of hydrochloric acid solution with the concentration of 9mol/L, fully stirring until the lithium fluoride is completely dissolved, adding 1g of titanium aluminum carbide, reacting for 23 hours at 35 ℃, repeatedly washing the obtained product with deionized water, dispersing the precipitate in enough deionized water, performing ultrasonic treatment in an argon atmosphere at 100W for 30 minutes, centrifuging at 4000r/min for 30 minutes, and taking out the lower precipitate to obtain multilayer titanium carbide granules;
2) Dispersing the multi-layer titanium sesquicarbide particles in deionized water to obtain a dispersion liquid with the concentration of 3mg/L, adding 3.2g of sodium hydroxide into 40mL of the dispersion liquid, stirring at room temperature for reaction for 24 hours at 100r/min, repeatedly washing with deionized water after the reaction is finished, and freeze-drying to obtain the nano-sheet composite material.
Example 2
The environment-friendly waterproof grouting material is characterized by comprising the following raw materials of, by weight, 120 parts of composite cement, 25 parts of fly ash, 15 parts of mineral powder, 60 parts of aggregate, 10 parts of waterproof gel particles and 5 parts of additive;
the preparation method of the waterproof grouting material comprises the following steps:
Weighing the raw material components according to parts by weight, processing waterproof gel particles to obtain modified waterproof gel particles, pouring the modified waterproof gel particles, the composite cement, the fly ash, the mineral powder, the aggregate and the additive into a bin, uniformly stirring to obtain a mixed material, pouring the mixed material into a stirring hopper of an integrated stirring and conveying machine, connecting a soft water pipe to a water filling port of the integrated stirring and conveying machine, connecting the other end of the soft water pipe to a water source joint of a construction site, adding required water through a liquid flowmeter according to the requirement of water, and continuously stirring for 3min after adding the required water into a dry mixture in the integrated stirring and grouting machine to obtain the required grouting material;
Wherein, the processing treatment of the waterproof gel particles specifically comprises the following steps:
1) Sequentially adding 4g of cetyltrimethylammonium bromide, 100mL of distilled water, 3mL of chloroauric tetrahydrate with the concentration of 15mmol/L and 7mL of sodium citrate solution with the concentration of 15mmol/L into a container, fully stirring and mixing in a 32 ℃ water bath, then rapidly adding 0.7mL of sodium borohydride solution with the concentration of 12mmol/L, continuously stirring for 4min, and standing for 5h to obtain seed liquid;
2) 3.7g of cetyltrimethylammonium bromide, 98mL of distilled water, 5.6mL of chloroauric tetrahydrate with the concentration of 15mmol/L and 1.2mL of silver nitrate solution with the concentration of 15mmol/L are sequentially added into a container, fully stirred and mixed in a 32 ℃ water bath, then 0.8mL of ascorbic acid solution with the concentration of 0.2mol/L and 3g of waterproof gel particles are added, after fully stirring, 1.8mL of seed solution is quickly added, standing is continued in the water bath for 15h, and after centrifugation and washing, freeze drying are carried out, modified waterproof gel particles are obtained.
The preparation method of the waterproof gel particles comprises the following steps:
1) Adding 4g of hectorite into 150mL of deionized water, fully stirring to obtain a dispersion liquid, adding 23g of acrylamide, fully stirring to obtain a mixed dispersion liquid, sequentially adding 5g of methacryloxypropyl trimethoxysilane and 12g of alpha-methacrylic acid, fully stirring, adding 0.5g of ethylene glycol dimethacrylate and 0.2g of potassium persulfate, and fully and uniformly mixing to obtain a composite gel solution;
2) Adding the nano-sheet composite material into a composite gel solution according to the mass-volume ratio of 1g to 40mL, performing ultrasonic dispersion for 20min at 400W, transferring into an aging tank after deoxidization, sealing, reacting for 47h at 65 ℃, taking out the product after the reaction is finished, and performing crushing and freeze drying to obtain the waterproof gel particles.
The preparation method of the nano-sheet composite material comprises the following steps:
1) Adding 2g of lithium fluoride into 25mL of hydrochloric acid solution with the concentration of 9.5mol/L, fully stirring until the lithium fluoride is completely dissolved, adding 2g of titanium aluminum carbide, reacting for 25 hours at 37 ℃, repeatedly washing the obtained product with deionized water, dispersing the precipitate in enough deionized water, performing ultrasonic treatment for 40 minutes in an argon atmosphere at 150W, centrifuging for 35 minutes at 4500r/min, and taking out the lower precipitate to obtain multilayer dititanium carbide particles;
2) Dispersing the multi-layer titanium sesquicarbide particles in deionized water to obtain a dispersion liquid with the concentration of 5mg/L, adding 3.8g of sodium hydroxide into 50mL of the dispersion liquid, stirring at room temperature for reaction for 26 hours at 200r/min, repeatedly washing with deionized water after the reaction is finished, and freeze-drying to obtain the nano-sheet composite material.
Example 3
The environment-friendly waterproof grouting material is characterized by comprising the following raw materials of, by weight, 150 parts of composite cement, 30 parts of fly ash, 20 parts of mineral powder, 70 parts of aggregate, 13 parts of waterproof gel particles and 8 parts of additive;
the preparation method of the waterproof grouting material comprises the following steps:
Weighing the raw material components according to parts by weight, processing waterproof gel particles to obtain modified waterproof gel particles, pouring the modified waterproof gel particles, the composite cement, the fly ash, the mineral powder, the aggregate and the additive into a bin, uniformly stirring to obtain a mixed material, pouring the mixed material into a stirring hopper of an integrated stirring and conveying machine, connecting a soft water pipe to a water filling port of the integrated stirring and conveying machine, connecting the other end of the soft water pipe to a water source joint of a construction site, adding required water through a liquid flowmeter according to the requirement of water, and continuously stirring for 3min after adding the required water into a dry mixture in the integrated stirring and grouting machine to obtain the required grouting material;
Wherein, the processing treatment of the waterproof gel particles specifically comprises the following steps:
1) Sequentially adding 5g of cetyltrimethylammonium bromide, 120mL of distilled water, 3mL of chloroauric tetrahydrate with the concentration of 16mmol/L and 8mL of sodium citrate solution with the concentration of 16mmol/L into a container, fully stirring and mixing in a 35 ℃ water bath, then rapidly adding 0.8mL of sodium borohydride solution with the concentration of 13mmol/L, continuously stirring for 5min, and standing for 6h to obtain seed liquid;
2) 4g of cetyltrimethylammonium bromide, 100mL of distilled water, 6.3mL of chloroauric tetrahydrate with the concentration of 16mmol/L and 1.5mL of silver nitrate solution with the concentration of 16mmol/L are sequentially added into a container, fully stirred and mixed in a 35 ℃ water bath, then 1.0mL of ascorbic acid solution with the concentration of 0.2mol/L and 5g of waterproof gel particles are added, after fully stirring, 2.3mL of seed solution is quickly added, standing is continued in the water bath for 16h, and after centrifugation and washing, freeze drying, modified waterproof gel particles are obtained.
The preparation method of the waterproof gel particles comprises the following steps:
1) Adding 5g of hectorite into 160mL of deionized water, fully stirring to obtain a dispersion liquid, adding 26g of acrylamide, fully stirring to obtain a mixed dispersion liquid, sequentially adding 6g of methacryloxypropyl trimethoxysilane and 15g of alpha-methacrylic acid, fully stirring, adding 0.7g of ethylene glycol dimethacrylate and 0.3g of potassium persulfate, and fully and uniformly mixing to obtain a composite gel solution;
2) Adding the nano-sheet composite material into a composite gel solution according to the mass-volume ratio of 1g to 50mL, performing ultrasonic dispersion for 30min at 500W, transferring into an aging tank after deoxidization, sealing, reacting for 50h at 70 ℃, taking out the product after the reaction is finished, and performing crushing and freeze drying to obtain the waterproof gel particles.
The preparation method of the nano-sheet composite material comprises the following steps:
1) Adding 3g of lithium fluoride into 30mL of hydrochloric acid solution with the concentration of 10mol/L, fully stirring until the lithium fluoride is completely dissolved, adding 3g of titanium aluminum carbide, reacting for 27 hours at 40 ℃, repeatedly washing the obtained product with deionized water, dispersing the precipitate in enough deionized water, performing 200W ultrasonic treatment in argon atmosphere for 50 minutes, centrifuging for 40 minutes at 5000r/min, and taking out the lower precipitate to obtain multilayer titanium carbide granules;
2) Dispersing the multi-layer titanium sesquicarbide particles in deionized water to obtain a dispersion liquid with the concentration of 8mg/L, adding 4.0g of sodium hydroxide into 60mL of the dispersion liquid, stirring at room temperature for reaction for 30h at 300r/min, repeatedly washing with deionized water after the reaction is finished, and freeze-drying to obtain the nano-sheet composite material.
Comparative example 1 this comparative example is substantially identical to example 1, except that no water-repellent gel particles were contained.
Comparative example 2 this comparative example is substantially the same as example 1 except that the water-repellent gel particles were not subjected to processing treatment at the time of use.
Comparative example 3 this comparative example is substantially identical to example 1, except that no nanoplatelet composite is added during the preparation of the waterproof gel particles.
Comparative example 4 this comparative example is substantially the same as example 1 except that a multi-layered tri-titanium carbide pellet was used instead of the nano-sheet composite material in the preparation of the waterproof gel pellet.
Comparative example 5 this comparative example is essentially the same as example 1 except that 500W sonication was used for 2 hours instead of 100W sonication for 30 minutes during the preparation of the nanoplatelet composite.
Test experiment:
Experimental preparation the grouting materials provided in examples 1-3 and comparative examples 1-5, 1 tensile machine, 1 watertight machine, 1 mortar press, 1 balance frame, 8 150 mm. Times.150 mm. Times.10 mm mold boxes, a plurality of 500ml conical measuring cylinders, 3 1000ml containers, 500ml each of 10% sodium hydroxide solution and 1% hydrochloric acid solution, 3 test molds 70 mm. Times.70 mm, coarse sand, crushed stone, 2kg each.
And (II) preparing a sample, namely pouring the grouting material prepared in the embodiment 1 into 2 mould boxes, directly using the rest part for performance test 4, taking out the grouting material from the mould boxes after the grouting material in the mould boxes is solidified, and respectively cutting the grouting material into a plurality of 50mm multiplied by 20mm multiplied by 10mm long-strip-shaped test pieces. The same process was performed for the grouting materials of examples 2 to 4.
(III) performance test:
1. and (3) performing waterproof test, namely clamping the test piece to be tested of each sample into a waterproof instrument, opening a water injection valve, keeping a constant pressure of 0.2MPa for 30min, observing whether each test piece is permeable, and recording.
2. And (3) durability test, namely respectively putting the test pieces to be tested of each test piece into 10% sodium hydroxide solution and 1% hydrochloric acid solution, soaking for 72 hours, taking out, observing whether pulverization or crack phenomenon exists on the surfaces of the test pieces, and recording.
4. Weighing a proper amount of mixed grouting material to be tested of each sample, pouring the mixed grouting material into a test mold with the thickness of 70mm multiplied by 70mm for curing, taking out the cured grouting material, putting the cured grouting material into a mortar press, gradually pressurizing until the test piece is destroyed, and recording the compressive strength;
Weighing a proper amount of mixed grouting material to be tested in each embodiment, pouring into a test mold filled with sand and stones with the thickness of 70mm multiplied by 70mm, solidifying, taking out the solidified grouting material, putting into a mortar press, gradually pressurizing until a test piece is broken, and recording the consolidation strength.
(IV) test results:
The test results are shown in Table 1.
TABLE 1
As can be seen from Table 1, the waterproof grouting material can maintain excellent waterproof performance under high water yield and strong pressure, and meets the technical requirements of waterproof performance and reinforcement function.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (2)
1. An environment-friendly waterproof grouting material is characterized by comprising the following raw materials, by weight, 100-150 parts of composite cement, 20-30 parts of fly ash, 10-20 parts of mineral powder, 50-70 parts of aggregate, 8-13 parts of waterproof gel particles and 3-8 parts of an additive,
The preparation method of the waterproof gel particles comprises the following steps:
1) Adding hectorite into deionized water, fully stirring to obtain a dispersion liquid, sequentially adding acrylamide, methacryloxypropyl trimethoxy silane, alpha-methacrylic acid, ethylene glycol dimethacrylate and potassium persulfate, and fully and uniformly mixing to obtain a composite gel solution;
2) Adding the nano-sheet composite material into a composite gel solution, transferring the composite gel solution into an aging tank after deoxidization after ultrasonic dispersion, reacting for 45-50 hours after sealing, taking out the product after the reaction is finished, crushing, freeze-drying to obtain waterproof gel particles,
In the composite gel solution, the dosage ratio of hectorite, deionized water, acrylamide, methacryloxypropyl trimethoxy silane, alpha-methacrylic acid, ethylene glycol dimethacrylate and potassium persulfate is (1-5) g (100-160) mL (18-26) g (3-6) g (10-15) g (0.3-0.7) g (0.1-0.3) g,
The mass volume ratio of the nano-sheet composite material to the composite gel solution is 1g (30-50) mL, the reaction temperature is 60-70 ℃,
The preparation method of the nano-sheet composite material comprises the following steps:
1) Adding lithium fluoride into hydrochloric acid solution, stirring and dissolving, adding titanium aluminum carbide, reacting at 35-40 ℃ for 23-27h, repeatedly washing the obtained product with deionized water, dispersing the precipitate in enough deionized water, performing ultrasonic treatment in argon atmosphere for 30-50min, centrifuging, and taking out the lower precipitate to obtain multilayer titanium carbide particles;
2) Dispersing the multi-layer titanium sesquicarbide particles in deionized water to obtain a dispersion liquid, adding sodium hydroxide into the dispersion liquid, stirring at room temperature for reaction for 24-30h, repeatedly washing with deionized water after the reaction is finished, freeze-drying to obtain the nano-sheet composite material,
The dosage proportion of the lithium fluoride, the hydrochloric acid solution and the titanium aluminum carbide is (1-3) g (20-30) mL (1-3) g;
The concentration of the hydrochloric acid solution is 9-10mol/L;
the power of the ultrasonic treatment is 100-200W;
The centrifugal rotating speed is 4000-5000r/min, and the centrifugal time is 30-40min;
the concentration of the dispersion liquid is 3-8mg/L;
The dosage ratio of the sodium hydroxide to the dispersion liquid is (3.2-4.0) g (40-60) mL;
the preparation method of the waterproof grouting material comprises the following steps:
Weighing the raw material components according to parts by weight, processing waterproof gel particles to obtain modified waterproof gel particles, pouring the modified waterproof gel particles, the composite cement, the fly ash, the mineral powder, the aggregate and the additive into a bin, uniformly stirring to obtain a mixed material, pouring the mixed material into a stirring hopper of an integrated stirring and conveying machine, connecting a soft water pipe to a water filling port of the integrated stirring and conveying machine, connecting the other end of the soft water pipe to a water source joint of a construction site, adding required water through a liquid flowmeter according to the requirement of water, and continuously stirring for 2-3min after adding the required water into a dry mixture in the integrated stirring and grouting machine to obtain the required grouting material;
The processing treatment of the waterproof gel particles specifically comprises the following steps:
1) Sequentially adding cetyl trimethyl ammonium bromide, distilled water, chloroauric acid tetrahydrate and sodium citrate solution into a container, fully stirring and mixing in a water bath at 30-35 ℃, then rapidly adding sodium borohydride solution, continuously stirring for 2-5min, and standing for 3-6h to obtain seed solution;
2) Sequentially adding cetyl trimethyl ammonium bromide, distilled water, chloroauric acid tetrahydrate and silver nitrate solution into a container, fully stirring and mixing in a water bath at 30-35 ℃, then adding ascorbic acid solution and waterproof gel particles, fully stirring, quickly adding seed solution, standing for 12-16h in the water bath, centrifuging, washing, freeze-drying to obtain modified waterproof gel particles,
In the seed solution, the dosage proportion of the cetyl trimethyl ammonium bromide, distilled water, chloroauric tetrahydrate, sodium citrate solution and sodium borohydride solution is (3-5) g (95-120) mL (2.5-3.0) mL (5-8) mL (0.5-0.8) mL;
The concentration of the chloroauric acid tetrahydrate is 10-16mmol/L;
the concentration of the sodium citrate solution is 10-16mmol/L;
the concentration of the sodium borohydride solution is 10-13mmol/L,
The dosage proportion of the cetyl trimethyl ammonium bromide, distilled water, chloroauric tetrahydrate, silver nitrate solution, ascorbic acid solution, waterproof gel particles and seed solution is (3.5-4.0) g (93-100) mL (5.2-6.3) mL (1.0-1.5) mL (0.6-1.0) mL (2-5) g (1.6-2.3) mL;
the concentration of the silver nitrate solution is 10-16mmol/L;
the concentration of the ascorbic acid solution is 0.1-0.2mol/L.
2. The environment-friendly waterproof grouting material according to claim 1, wherein the composite cement consists of silicate cement and sulphoaluminate cement according to the mass ratio of 1 (1-3);
The additive consists of a water reducer, a thickener, a defoaming agent and a retarder according to the mass ratio of 1 (0.5-0.9) (0.3-0.6) (1.2-1.8);
the grade of the fly ash is not lower than that of the secondary fly ash, and the fineness is 500-1500 meshes;
the mineral powder consists of S95-grade mineral powder and S75-grade mineral powder according to the mass ratio of 1 (0.3-0.6);
The aggregate consists of (0.2-0.5) and (1.2-1.7) of quartz sand with the particle size of 0.5-1.0mm, 1-2mm and 2-4mm and three different particle sizes according to the mass ratio of 1 (0.2-0.5).
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| CN108896638A (en) * | 2018-07-10 | 2018-11-27 | 山东理工大学 | A kind of preparation method and application of the immunosensor based on the graphene-supported sea cucumber shape gold-palladium core-shell nano of titania additive |
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