CN116119970A - Low-carbon gelling material auxiliary agent for concrete and preparation method thereof - Google Patents
Low-carbon gelling material auxiliary agent for concrete and preparation method thereof Download PDFInfo
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- CN116119970A CN116119970A CN202211614966.5A CN202211614966A CN116119970A CN 116119970 A CN116119970 A CN 116119970A CN 202211614966 A CN202211614966 A CN 202211614966A CN 116119970 A CN116119970 A CN 116119970A
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- 239000004567 concrete Substances 0.000 title claims abstract description 63
- 239000000463 material Substances 0.000 title claims abstract description 44
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 40
- 239000012752 auxiliary agent Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 48
- 239000002131 composite material Substances 0.000 claims abstract description 46
- 239000002893 slag Substances 0.000 claims abstract description 33
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000654 additive Substances 0.000 claims abstract description 20
- 239000003349 gelling agent Substances 0.000 claims abstract description 18
- 230000000996 additive effect Effects 0.000 claims abstract description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052802 copper Inorganic materials 0.000 claims abstract description 13
- 239000010949 copper Substances 0.000 claims abstract description 13
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 235000003891 ferrous sulphate Nutrition 0.000 claims abstract description 11
- 239000011790 ferrous sulphate Substances 0.000 claims abstract description 11
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims abstract description 11
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims abstract description 11
- 229920002689 polyvinyl acetate Polymers 0.000 claims abstract description 11
- 239000011118 polyvinyl acetate Substances 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 9
- 239000000853 adhesive Substances 0.000 claims abstract description 7
- 230000001070 adhesive effect Effects 0.000 claims abstract description 7
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 7
- 239000003381 stabilizer Substances 0.000 claims abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 24
- 239000004568 cement Substances 0.000 claims description 23
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 16
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 12
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 12
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 12
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000005642 Oleic acid Substances 0.000 claims description 12
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 12
- 229920005551 calcium lignosulfonate Polymers 0.000 claims description 12
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 claims description 12
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 12
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 12
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 12
- 235000019353 potassium silicate Nutrition 0.000 claims description 11
- 239000002202 Polyethylene glycol Substances 0.000 claims description 8
- 229920001223 polyethylene glycol Polymers 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 239000004115 Sodium Silicate Substances 0.000 claims description 5
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 5
- 229920002748 Basalt fiber Polymers 0.000 claims description 4
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 4
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 4
- 239000000378 calcium silicate Substances 0.000 claims description 4
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 4
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 4
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 4
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 4
- 229910052720 vanadium Inorganic materials 0.000 claims description 4
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- ZAJAQTYSTDTMCU-UHFFFAOYSA-N 3-aminobenzenesulfonic acid Chemical compound NC1=CC=CC(S(O)(=O)=O)=C1 ZAJAQTYSTDTMCU-UHFFFAOYSA-N 0.000 claims description 2
- 241000220479 Acacia Species 0.000 claims description 2
- 235000010643 Leucaena leucocephala Nutrition 0.000 claims description 2
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 2
- 229920002401 polyacrylamide Polymers 0.000 claims description 2
- 229920005646 polycarboxylate Polymers 0.000 claims description 2
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 2
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 2
- 239000011343 solid material Substances 0.000 claims description 2
- 239000012190 activator Substances 0.000 claims 1
- 239000004576 sand Substances 0.000 abstract description 11
- 239000002002 slurry Substances 0.000 abstract description 4
- 230000002195 synergetic effect Effects 0.000 abstract description 4
- 238000003756 stirring Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002918 waste heat 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
- 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
-
- 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)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a low-carbon gelling material additive for concrete and a preparation method thereof. The material is prepared from the following raw materials in parts by weight: 80-120 parts of composite slag powder, 100-250 parts of composite gelatinizing agent, 10-30 parts of water reducer, 6-18 parts of exciting agent, 5-20 parts of reinforcing agent, 10-30 parts of adhesive and 10-30 parts of stabilizer. The combined use of the copper tailing powder and the nickel tailing powder in the auxiliary agent can obviously enhance the mechanical property of the concrete prepared by taking natural sand as aggregate, and the combination of the copper tailing powder and the nickel tailing powder is synergistic; ferrous sulfate and polyvinyl acetate are used as composite gelling agents, so that the slump of concrete slurry is improved, and the concrete slurry is synergistic.
Description
Technical Field
The invention belongs to the technical field of building material assistants, and particularly relates to a low-carbon gelling material assistant for concrete and a preparation method thereof.
Background
The concrete is obtained by mixing cement into a whole, generally using cement, sand and stone as aggregate, and water (which can contain additives and admixtures) according to a certain proportion, and stirring. Global climate change has significantly made greenhouse gas emissions, particularly carbon emissions, a focus of widespread attention, and the cement industry is an important basic raw material industry supporting social and economic development, as well as an industry with high energy consumption and high carbon emissions. The comprehensive energy consumption per 1 ton of cement produced is about 113.5kgce, and the emission of CO is about 0.8 ton 2 1/5 of the national industrial carbon emissions, the cement industry will face significant challenges and pressures in sustainable development and low carbon economy.
Cement production CO 2 The emission stage comprises raw material treatment, raw material preparation, fuel pretreatment, firing system, cement grinding, waste heat utilization and auxiliary production, and the technical means of improving the utilization of alternative raw fuel, high-efficiency combustion technology and equipment of coal, optimizing novel dry cement production line, high-efficiency energy-saving grinding technology and equipment and the like are adopted to further reduce CO 2 The space for the discharge becomes small. The method reduces the consumption of the cement gel as much as possible under the condition of not reducing the performance of the concrete, thereby reducing the CO 2 A new idea of emission.
In the preparation process of concrete, cement generally accounts for about 50% of the total dry material mass, the use amount can be reduced to 30% by using the additive, the quality of the concrete can be obviously reduced, aggregates used in the preparation process of the concrete are generally natural sand, the sizes of the natural sand grains are different, the sizes of the natural sand grains from different sources are often different greatly, the mechanical properties of the prepared concrete are obviously influenced, and the prepared concrete needs to be optimally modified by matching with different auxiliary agents.
Disclosure of Invention
The invention aims to provide a low-carbon gelling material additive for concrete and a preparation method thereof.
A low-carbon gelling material additive for concrete is prepared from the following raw materials in parts by weight: 80-120 parts of composite slag powder, 100-250 parts of composite gelatinizing agent, 10-30 parts of water reducer, 6-18 parts of exciting agent, 5-20 parts of reinforcing agent, 10-30 parts of adhesive and 10-30 parts of stabilizer.
The composite slag powder is copper tailing powder and nickel tailing powder according to the mass ratio of 3:1 mixed slag.
The composite gelling agent is prepared from ferrous sulfate and polyvinyl acetate according to a mass ratio of 3: 1.
The water reducer is one or more of polyethylene glycol, calcium lignosulfonate, aminobenzenesulfonic acid, polyethylene glycol methacrylate and polycarboxylate water reducer.
The excitant is one or more of sodium silicate, aluminum sulfate and sodium metasilicate.
The reinforcing agent is one or more of vanadium slag, diatomite, white carbon black, calcium silicate whisker and basalt fiber.
The adhesive is one or more of epoxy resin, sodium carboxymethyl cellulose, acacia, polyacrylonitrile, styrene-butadiene rubber and polyacrylamide.
The stabilizer is one or more of oleic acid, triethanolamine, temperature wheel glue, and montmorillonite.
The preparation method of the low-carbon gelling material auxiliary agent for the concrete comprises the steps of taking, by weight, 80-120 parts of composite slag powder, 100-250 parts of composite gelling agent, 10-30 parts of water reducer, 6-18 parts of excitant, 5-20 parts of reinforcing agent, 10-30 parts of adhesive and 10-30 parts of stabilizer, and placing the mixture into a stirrer to stir for 30-60min at 600-1200 rpm.
The application of the low-carbon cementing material additive for the concrete in preparing the concrete with low cement consumption is that the cement consumption in the concrete with low cement consumption is 15-30% of the mass of the solid material.
The invention has the beneficial effects that: the combined use of the copper tailing powder and the nickel tailing powder in the auxiliary agent can obviously enhance the mechanical property of the concrete prepared by taking natural sand as aggregate, and the combination of the copper tailing powder and the nickel tailing powder is synergistic; ferrous sulfate and polyvinyl acetate are used as composite gelling agents, so that the slump of concrete slurry is improved, and the concrete slurry is synergistic.
Detailed Description
The present invention will be described more fully hereinafter in order to facilitate an understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Example 1
A low-carbon gelling material additive for concrete is prepared from the following raw materials in parts by weight: 100 parts of composite slag powder, 180 parts of composite gelatinizing agent, 20 parts of calcium lignosulfonate, 12 parts of water glass, 12 parts of diatomite, 20 parts of styrene-butadiene rubber, 10 parts of oleic acid and 10 parts of triethanolamine; the composite slag powder is copper tailing powder and nickel tailing powder according to the mass ratio of 3:1 mixed slag; the composite gelling agent is prepared from ferrous sulfate and polyvinyl acetate according to a mass ratio of 3: 1.
According to the preparation method of the low-carbon gelling material auxiliary agent for the concrete, 100 parts of composite slag powder, 180 parts of composite gelling agent, 20 parts of calcium lignosulfonate, 12 parts of water glass, 12 parts of diatomite, 20 parts of styrene-butadiene rubber, 10 parts of oleic acid and 10 parts of triethanolamine are taken according to parts by weight, and are placed into a stirrer to be stirred for 40 minutes under the condition of 800rpm, so that the low-carbon gelling material auxiliary agent for the concrete is prepared.
Example 2
A low-carbon gelling material additive for concrete is prepared from the following raw materials in parts by weight: 80 parts of composite slag powder, 100 parts of composite gelling agent, 10 parts of polyethylene glycol, 6 parts of aluminum sulfate, 6 parts of calcium silicate whisker, 12 parts of polyacrylonitrile and 12 parts of temperature wheel glue; the composite slag powder is copper tailing powder and nickel tailing powder according to the mass ratio of 3:1 mixed slag; the composite gelling agent is prepared from ferrous sulfate and polyvinyl acetate according to a mass ratio of 3: 1.
The preparation method of the low-carbon gelling material auxiliary agent for the concrete comprises the steps of taking 80 parts by weight of composite slag powder, 100 parts by weight of composite gelling agent, 10 parts by weight of polyethylene glycol, 6 parts by weight of aluminum sulfate, 6 parts by weight of calcium silicate whisker, 12 parts by weight of polyacrylonitrile and 12 parts by weight of temperature wheel gel, and putting the mixture into a stirrer to stir for 30 minutes at 600 rpm.
Example 3
A low-carbon gelling material additive for concrete is prepared from the following raw materials in parts by weight: 120 parts of composite slag powder, 250 parts of composite gelling agent, 30 parts of polyethylene glycol methacrylate, 18 parts of sodium metasilicate, 10 parts of vanadium slag, 10 parts of basalt fiber, 30 parts of epoxy resin and 30 parts of montmorillonite; the composite slag powder is copper tailing powder and nickel tailing powder according to the mass ratio of 3:1 mixed slag; the composite gelling agent is prepared from ferrous sulfate and polyvinyl acetate according to a mass ratio of 3: 1.
The low-carbon gelling material auxiliary agent for concrete is prepared by taking, by weight, 120 parts of composite slag powder, 250 parts of composite gelling agent, 30 parts of polyethylene glycol methacrylate, 18 parts of sodium metasilicate, 10 parts of vanadium slag, 10 parts of basalt fiber, 30 parts of epoxy resin and 30 parts of montmorillonite, and placing the mixture into a stirrer to stir for 60 minutes under the condition of 1200 rpm.
Comparative example 1
A low-carbon gelling material additive for concrete is prepared from the following raw materials in parts by weight: 100 parts of copper tailing powder, 180 parts of composite gelatinizing agent, 20 parts of calcium lignosulfonate, 12 parts of water glass, 12 parts of diatomite, 20 parts of styrene-butadiene rubber, 10 parts of oleic acid and 10 parts of triethanolamine; the composite gelling agent is prepared from ferrous sulfate and polyvinyl acetate according to a mass ratio of 3: 1.
According to the preparation method of the low-carbon gelling material auxiliary agent for the concrete, 100 parts of copper tailing powder, 180 parts of composite gelling agent, 20 parts of calcium lignosulfonate, 12 parts of water glass, 12 parts of diatomite, 20 parts of styrene-butadiene rubber, 10 parts of oleic acid and 10 parts of triethanolamine are taken according to parts by weight, and are placed into a stirrer to be stirred for 40 minutes under the condition of 800rpm, so that the low-carbon gelling material auxiliary agent for the concrete is prepared.
Comparative example 2
A low-carbon gelling material additive for concrete is prepared from the following raw materials in parts by weight: 100 parts of nickel tailing powder, 180 parts of composite gelatinizing agent, 20 parts of calcium lignosulfonate, 12 parts of water glass, 12 parts of diatomite, 20 parts of styrene-butadiene rubber, 10 parts of oleic acid and 10 parts of triethanolamine; the composite gelling agent is prepared from ferrous sulfate and polyvinyl acetate according to a mass ratio of 3: 1.
According to the preparation method of the low-carbon gelling material auxiliary agent for the concrete, 100 parts of nickel tailing powder, 180 parts of composite gelling agent, 20 parts of calcium lignosulfonate, 12 parts of water glass, 12 parts of diatomite, 20 parts of styrene-butadiene rubber, 10 parts of oleic acid and 10 parts of triethanolamine are taken according to parts by weight, and are placed into a stirrer to be stirred for 40 minutes under the condition of 800rpm, so that the low-carbon gelling material auxiliary agent for the concrete is prepared.
Comparative example 3
A low-carbon gelling material additive for concrete is prepared from the following raw materials in parts by weight: 100 parts of composite slag powder, 180 parts of ferrous sulfate, 20 parts of calcium lignosulfonate, 12 parts of water glass, 12 parts of diatomite, 20 parts of styrene-butadiene rubber, 10 parts of oleic acid and 10 parts of triethanolamine; the composite slag powder is copper tailing powder and nickel tailing powder according to the mass ratio of 3:1 mixed slag.
The preparation method of the low-carbon gelling material auxiliary agent for the concrete comprises the steps of taking 100 parts by weight of composite slag powder, 180 parts by weight of ferrous sulfate, 20 parts by weight of calcium lignosulfonate, 12 parts by weight of water glass, 12 parts by weight of diatomite, 20 parts by weight of styrene-butadiene rubber, 10 parts by weight of oleic acid and 10 parts by weight of triethanolamine, and putting the mixture into a stirrer to stir for 40 minutes at 800 rpm.
Comparative example 4
A low-carbon gelling material additive for concrete is prepared from the following raw materials in parts by weight: 100 parts of composite slag powder, 180 parts of polyvinyl acetate, 20 parts of calcium lignosulfonate, 12 parts of water glass, 12 parts of diatomite, 20 parts of styrene-butadiene rubber, 10 parts of oleic acid and 10 parts of triethanolamine; the composite slag powder is copper tailing powder and nickel tailing powder according to the mass ratio of 3:1 mixed slag.
The preparation method of the low-carbon cementing material auxiliary agent for the concrete comprises the steps of taking 100 parts by weight of composite slag powder, 180 parts by weight of polyvinyl acetate, 20 parts by weight of calcium lignosulfonate, 12 parts by weight of water glass, 12 parts by weight of diatomite, 20 parts by weight of styrene-butadiene rubber, 10 parts by weight of oleic acid and 10 parts by weight of triethanolamine, and putting the mixture into a stirrer to stir for 40 minutes at 800 rpm.
Experimental example:
the gel material cement adopts ordinary Portland cement (P.O 42.5.42.5R), the aggregate material adopts natural sand (river sand), the auxiliary agent adopts the auxiliary agent prepared in the embodiment 1 to prepare concrete, the auxiliary agent content in the concrete dry material is 8%, the cement content is 10%, 15%, 20%, 25%, 30%, 35%, 40% respectively, the balance is natural sand, and the dosage mass ratio of the dry material to water is 1:0.44; concrete test pieces were prepared according to a conventional method (curing 28 d).
The compressive strength of the concrete is carried out according to the relevant regulations in the national standard of the people's republic of China, the standard of the test method for the mechanical properties of common concrete (GB/T50081-2002), the test pieces are 100mm multiplied by 100mm, 3 in each group, the reduction coefficient is 0.95, and the test results are shown in Table 1:
TABLE 1
As can be seen from Table 1, the cement addition amount is less than 10%, the compressive strength of the prepared concrete is too low to be used, the addition amount is more than 30%, the compressive strength increment is not obvious, the compressive strength of the concrete can be maintained, and the optimal cement content for reducing the cement use amount is 25%.
The auxiliary agents prepared in the examples 1-3 and the comparative examples 1-2 are used as additives, the addition amount is 8%, the cement addition amount is 25%, and the natural sand addition amount is 67%; the mass ratio of the dry material to the water is 1:0.44; concrete test pieces (curing 28 d) were prepared according to a conventional method, and the compressive strength of the prepared concrete was measured, and the test results are shown in Table 2:
TABLE 2
Note that: * Representing P <0.05 compared to example 1.
The auxiliary agents prepared in examples 1-3 and comparative examples 3-4 are used as additives, the addition amount is 8%, the cement addition amount is 25%, and the natural sand addition amount is 67%; the mass ratio of the dry material to the water is 1:0.44; after uniform stirring, concrete slump tests are carried out, the experiments are carried out according to the relevant regulations in the national standard of the people's republic of China, common concrete mixture Performance test method Standard (GB/T50080-2002), 3 are carried out in each group, and the test results are shown in Table 3:
TABLE 3 Table 3
Note that: * Representing P <0.05 compared to example 1.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. The low-carbon gelling material additive for the concrete is characterized by being prepared from the following raw materials in parts by weight: 80-120 parts of composite slag powder, 100-250 parts of composite gelatinizing agent, 10-30 parts of water reducer, 6-18 parts of exciting agent, 5-20 parts of reinforcing agent, 10-30 parts of adhesive and 10-30 parts of stabilizer.
2. The low-carbon gelling material additive for concrete according to claim 1, wherein the composite slag powder is copper tailing powder and nickel tailing powder according to a mass ratio of 3:1 mixed slag.
3. The low-carbon gelling material additive for concrete according to claim 1, wherein the composite gelling agent is ferrous sulfate and polyvinyl acetate according to a mass ratio of 3: 1.
4. The low-carbon gelling material auxiliary agent for concrete according to claim 1, wherein the water reducing agent is one or more of polyethylene glycol, calcium lignosulfonate, aminobenzenesulfonic acid, polyethylene glycol methacrylate and polycarboxylate water reducing agent.
5. The low-carbon gelling material aid for concrete according to claim 1, wherein the activator is one or more of water glass, aluminum sulfate and sodium metasilicate.
6. The low-carbon gelling material auxiliary agent for concrete according to claim 1, wherein the reinforcing agent is one or more of vanadium slag, diatomite, white carbon black, calcium silicate whisker and basalt fiber.
7. The low-carbon gelling material auxiliary agent for concrete according to claim 1, wherein the adhesive is one or more of epoxy resin, sodium carboxymethyl cellulose, acacia, polyacrylonitrile, styrene-butadiene rubber and polyacrylamide.
8. The low-carbon gelling material additive for concrete according to claim 1, wherein the stabilizer is one or more of oleic acid, triethanolamine, temperature wheel gel, montmorillonite.
9. The method for preparing the low-carbon gelling material auxiliary agent for concrete according to claim 1, which is characterized in that 80-120 parts by weight of composite slag powder, 100-250 parts by weight of composite gelling agent, 10-30 parts by weight of water reducer, 6-18 parts by weight of exciting agent, 5-20 parts by weight of reinforcing agent, 10-30 parts by weight of adhesive and 10-30 parts by weight of stabilizer are put into a stirrer to be stirred for 30-60min under the condition of 600-1200rpm, so as to prepare the low-carbon gelling material auxiliary agent.
10. The use of the low carbon cementing material additive for concrete according to claim 1 for preparing concrete with low cement usage, wherein the cement usage in the concrete with low cement usage is 15-30% of the mass of solid materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211614966.5A CN116119970A (en) | 2022-12-15 | 2022-12-15 | Low-carbon gelling material auxiliary agent for concrete and preparation method thereof |
Applications Claiming Priority (1)
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