CN113800810A - Reinforcing and regulating agent for machine-made sand concrete and concrete - Google Patents
Reinforcing and regulating agent for machine-made sand concrete and concrete Download PDFInfo
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- CN113800810A CN113800810A CN202111217151.9A CN202111217151A CN113800810A CN 113800810 A CN113800810 A CN 113800810A CN 202111217151 A CN202111217151 A CN 202111217151A CN 113800810 A CN113800810 A CN 113800810A
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- 239000004567 concrete Substances 0.000 title claims abstract description 62
- 239000004576 sand Substances 0.000 title claims abstract description 37
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 36
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 29
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 60
- 239000010881 fly ash Substances 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 21
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 20
- 239000011707 mineral Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000843 powder Substances 0.000 claims abstract description 19
- -1 alcohol amine compound Chemical class 0.000 claims abstract description 14
- 239000002270 dispersing agent Substances 0.000 claims abstract description 12
- 239000004111 Potassium silicate Substances 0.000 claims abstract description 9
- 229910052913 potassium silicate Inorganic materials 0.000 claims abstract description 9
- 239000002910 solid waste Substances 0.000 claims abstract description 9
- 239000000654 additive Substances 0.000 claims abstract description 8
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims abstract description 8
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 8
- 239000000126 substance Substances 0.000 claims abstract description 8
- 230000000996 additive effect Effects 0.000 claims abstract description 7
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 239000002562 thickening agent Substances 0.000 claims abstract description 7
- 229910001579 aluminosilicate mineral Inorganic materials 0.000 claims abstract description 5
- 238000007334 copolymerization reaction Methods 0.000 claims abstract description 5
- 230000008878 coupling Effects 0.000 claims abstract description 5
- 238000010168 coupling process Methods 0.000 claims abstract description 5
- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
- 229920000592 inorganic polymer Polymers 0.000 claims abstract description 5
- 229920000867 polyelectrolyte Polymers 0.000 claims abstract description 5
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 5
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910000077 silane Inorganic materials 0.000 claims abstract description 4
- 239000004568 cement Substances 0.000 claims description 18
- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 claims description 6
- VBICKXHEKHSIBG-UHFFFAOYSA-N beta-monoglyceryl stearate Natural products CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 claims description 6
- 229910021485 fumed silica Inorganic materials 0.000 claims description 6
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 6
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 6
- HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 claims description 4
- 229910021536 Zeolite Inorganic materials 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- ONCZQWJXONKSMM-UHFFFAOYSA-N dialuminum;disodium;oxygen(2-);silicon(4+);hydrate Chemical compound O.[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Na+].[Na+].[Al+3].[Al+3].[Si+4].[Si+4].[Si+4].[Si+4] ONCZQWJXONKSMM-UHFFFAOYSA-N 0.000 claims description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 4
- 239000003607 modifier Substances 0.000 claims description 4
- 229920000058 polyacrylate Polymers 0.000 claims description 4
- 229940080314 sodium bentonite Drugs 0.000 claims description 4
- 229910000280 sodium bentonite Inorganic materials 0.000 claims description 4
- 239000010457 zeolite Substances 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 3
- 229960000892 attapulgite Drugs 0.000 claims description 3
- 229910052625 palygorskite Inorganic materials 0.000 claims description 3
- 239000010452 phosphate Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 2
- 239000005909 Kieselgur Substances 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- 239000012744 reinforcing agent Substances 0.000 claims 3
- 239000003513 alkali Substances 0.000 claims 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 claims 1
- 125000003342 alkenyl group Chemical group 0.000 claims 1
- 125000005456 glyceride group Chemical group 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 1
- 238000006703 hydration reaction Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 8
- 239000013078 crystal Substances 0.000 abstract description 7
- 230000036571 hydration Effects 0.000 abstract description 7
- 229910018516 Al—O Inorganic materials 0.000 abstract description 4
- 239000004115 Sodium Silicate Substances 0.000 abstract description 4
- 239000002893 slag Substances 0.000 abstract description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052911 sodium silicate Inorganic materials 0.000 abstract description 4
- 229910018557 Si O Inorganic materials 0.000 abstract description 3
- 230000007062 hydrolysis Effects 0.000 abstract description 3
- 238000006460 hydrolysis reaction Methods 0.000 abstract description 3
- 239000000377 silicon dioxide Substances 0.000 abstract description 3
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 abstract description 3
- 210000004127 vitreous body Anatomy 0.000 abstract description 3
- 235000010755 mineral Nutrition 0.000 description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- DCXXMTOCNZCJGO-UHFFFAOYSA-N tristearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 description 6
- 239000002994 raw material Substances 0.000 description 5
- 239000002585 base Substances 0.000 description 4
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 description 4
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 4
- 229940037312 stearamide Drugs 0.000 description 4
- 239000000378 calcium silicate Substances 0.000 description 3
- 229910052918 calcium silicate Inorganic materials 0.000 description 3
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 3
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 description 3
- 229940043276 diisopropanolamine Drugs 0.000 description 3
- 125000006038 hexenyl group Chemical group 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 2
- 229940092782 bentonite Drugs 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229940075507 glyceryl monostearate Drugs 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000001788 mono and diglycerides of fatty acids Substances 0.000 description 2
- 230000003334 potential effect Effects 0.000 description 2
- 239000011775 sodium fluoride Substances 0.000 description 2
- 235000013024 sodium fluoride Nutrition 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
- 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
- C04B28/04—Portland 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
- 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
The invention relates to a reinforcing and regulating agent for machine-made sand concrete, wherein the reinforcing and regulating agent for machine-made sand concrete comprises, by weight, 300 parts of an active exciting agent for treating solid waste, 10-30 parts of an alcohol amine compound, 5-20 parts of a dispersing agent, 4-10 parts of a penetrating agent, 3-8 parts of a thickening agent, 30-50 parts of potassium silicate, 2-30 parts of an additive and 600 parts of water; the active excitant is a copolymerization substance which is composed of inorganic polymer aluminosilicate minerals containing silicon oxide and bonded by silane and a coupling polyelectrolyte dispersing agent. The reinforcing and regulating agent for machine-made sand concrete provided by the invention can excite the activity of fly ash, promote the fracture of Si-O bond and Al-O bond of fly ash, accelerate the hydration speed of fly ash, and also can excite and destroy silica network crystals such as mineral powder, so that vitreous bodies are disintegrated to participate in the hydration reaction of base materials, and the further hydrolysis of slag and sodium silicate is promoted.
Description
Technical Field
The invention relates to the field of building material additives, in particular to a reinforcing and regulating agent for machine-made sand concrete and concrete.
Background
Concrete is a building material generally composed of cement, mineral admixtures, fine aggregates, coarse aggregates, admixtures and water, and has an irreplaceable position in the construction field. Concrete is widely used as a building base material worldwide. In order to meet the requirements of high workability and strength of concrete, the cement consumption in concrete is generally high. In the actual production process of cement, coal resources are greatly consumed, and pollutants such as carbon dioxide, sulfur dioxide and the like are also greatly discharged. Therefore, the heavy use of cement brings serious resource consumption and environmental pollution pressure.
Because the resources and the mass of auxiliary materials (mineral powder and fly ash) in various regions are different, the potential activity of the excavating admixture cannot be fully treated, and in order to obtain better concrete performance, a large amount of cement materials are used in a plurality of mixing stations, so that about 20-30% of cement is used as an inert filling material in the cement hydration process, the cement cannot fully play a role, and the mineral powder or the fly ash only plays a weak role in the concrete, so that the waste of resources is caused, and more importantly, negative effects are generated on the continuous increase of the durability and the later strength of the concrete.
Disclosure of Invention
In view of the above, it is desirable to provide a reinforcing modifier for machine-made sand concrete and concrete that address at least one of the above-mentioned problems.
The reinforcing and regulating agent for machine-made sand concrete provided by the invention comprises, by weight, 300 parts of an active exciting agent for treating solid waste, 10-30 parts of an alcohol amine compound, 5-20 parts of a dispersing agent, 4-10 parts of a penetrating agent, 3-8 parts of a thickening agent, 30-50 parts of potassium silicate, 2-30 parts of an additive and 600 parts of water; the active excitant is a copolymerization substance which is composed of inorganic polymer aluminosilicate minerals containing silicon oxide and bonded by silane and a coupling polyelectrolyte dispersing agent.
In one embodiment, the dispersant is selected from at least one of a vinyl bis-stearamide, a glyceryl monostearate, a glyceryl tristearate, or a carboxylic acid-sulfonic acid-acrylate terpolymer.
In one embodiment, the alcohol amine compound is selected from at least one of diethanol monoisopropanolamine, monoethanol diisopropanolamine, or triisopropanolamine.
In one embodiment, the penetrating agent is selected from one of fatty alcohol-polyoxyethylene ether, alkylphenol ethoxylate or phosphate ester compounds.
In one embodiment, the thickener is selected from at least one of fumed silica, sodium bentonite, organobentonite, diatomaceous earth, attapulgite, zeolite, or silica gel.
In one embodiment, the additive is selected from at least one of fluoride, an alkaline source of an amine, or a silicate alkali metal hydroxide.
In one embodiment, the temperature of the water is 25-35 ℃.
The invention also provides concrete, which comprises cement, fly ash, mineral powder, river sand, stones, a water reducing agent and the reinforcing and adjusting agent for machine-made sand concrete, wherein the addition amount of the reinforcing and adjusting agent for machine-made sand concrete is 0.2% of the total weight of other material components.
The technical scheme provided by the embodiment of the invention has the following beneficial technical effects:
the reinforcing and regulating agent for machine-made sand concrete provided by the invention can excite the activity of fly ash, promote the fracture of Si-O bond and Al-O bond of fly ash, accelerate the hydration speed of fly ash, and also can excite and destroy silica network crystals such as mineral powder, so that vitreous bodies are disintegrated to participate in the hydration reaction of base materials, and the further hydrolysis of slag and sodium silicate is promoted.
Additional aspects and advantages of the present invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Detailed Description
It will be understood by those skilled in the relevant art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It is to be understood that the term "and/or" as used herein is intended to include all or any and all combinations of one or more of the associated listed items.
The invention aims to provide a reinforcing and regulating agent for machine-made sand concrete, which can ensure that the dispersion degree of cement in concrete is better, improve the hydration efficiency of the cement, and change the crystal structures, chemical compositions and physical and chemical properties of mineral powder and fly ash per se, so that activated atom structures are rearranged and recrystallized, and a surface layer is spontaneously recombined to form an amorphous structure. The mineral powder and the fly ash are enabled to have irregular internal crystal structures and generate multiphase crystal form transformation, so that lattice defects are generated, the surface energy is increased, and the mechanical properties and the crystallographic properties of the mineral powder and the fly ash are changed regularly, so that the potential activity of the mineral powder and the fly ash is released, the strength of concrete is improved, and the production cost is reduced.
The reinforcing and regulating agent for machine-made sand concrete provided by the invention comprises, by weight, 300 parts of an active exciting agent for treating solid waste, 10-30 parts of an alcohol amine compound, 5-20 parts of a dispersing agent, 4-10 parts of a penetrating agent, 3-8 parts of a thickening agent, 30-50 parts of potassium silicate, 2-30 parts of an additive and 600 parts of water; the active excitant is a copolymerization substance which is composed of inorganic polymer aluminosilicate minerals bonded by silicon oxide and silane through coupling polyelectrolyte dispersing agents.
In the above embodiments, the dispersant is selected from at least one of hexenyl bis stearamide, glyceryl monostearate, glyceryl tristearate, or a carboxylic acid-sulfonic acid-acrylate terpolymer. The alcohol amine compound is at least one selected from diethanol monoisopropanolamine, monoethanol diisopropanolamine or triisopropanolamine. The penetrating agent is selected from one of fatty alcohol-polyoxyethylene ether, alkylphenol ethoxylates or phosphate compounds. The thickener is at least one selected from fumed silica, sodium bentonite, organic bentonite, diatomite, attapulgite, zeolite and silica gel. The additive is at least one of sodium fluoride, sodium sulfate, diethylamine, calcium silicate or sodium hydroxide. The temperature of the water is 25 +/-5 ℃.
The active excitant is a product independently developed by Beijing stone science and technology limited, and contains a copolymerization substance formed by coupling a polyelectrolyte dispersing agent with a silicon oxide and a silane-bonded inorganic polymer aluminosilicate mineral, and can promote the fracture of a silicon-oxygen bond and an Al-O bond of the fly ash, accelerate the hydration speed of the fly ash, promote the disintegration of a silica-network-bonded crystal of slag, participate in the hydration reaction of a base material to generate calcium silicate (C-S-H) gel, improve the activity of mineral powder and fly ash in concrete, and improve the overall performance of the concrete.
The reinforcing and regulating agent for machine-made sand concrete provided by the invention can excite the activity of fly ash, promote the fracture of Si-O bond and Al-O bond of fly ash, accelerate the hydration speed of fly ash, and also can excite and destroy silica network crystals such as mineral powder, so that vitreous bodies are disintegrated to participate in the hydration reaction of base materials, and the further hydrolysis of slag and sodium silicate is promoted.
The material provided by the invention uses water as a mass transfer medium and a reaction medium under a normal temperature environment to promote the disintegration of the aggregate of the mineral powder and the fly ash crystalline phase and the glass phase and generate more continuous phases rich in calcium, so that the hydration of the mineral powder and the fly ash is accelerated, and the material shows excellent hydraulic activity.
The reinforcing regulator for machine-made sand concrete has the characteristics of organic polymer, can quickly destroy the surface structures of glass bodies of mineral powder and fly ash, enables water to be more easily infiltrated and to perform hydration reaction, promotes the dispersion and disintegration of the mineral powder and the fly ash, and is beneficial to the formation of hydrate network structures. The formation of cementitious calcium silicate hydrate and calcium aluminate hydrate products is increased and strength is produced.
The reinforced regulator for machine-made sand concrete has low mixing amount, can replace 10-30% of the same cement in the concrete in the same amount, and greatly reduces the production cost of buildings.
The following are specific examples:
example 1
The material is prepared from the following raw materials in parts by weight: 200 parts of active exciting agent for treating solid waste, 30 parts of diethanol monoisopropanolamine, 5 parts of hexenyl bis stearamide, 6 parts of fatty alcohol-polyoxyethylene ether, 4 parts of sodium bentonite, 30 parts of potassium silicate, 20 parts of sodium hydroxide and 500 parts of water are stirred at a low speed for 1 hour at a temperature of 30 ℃ to obtain the reinforcing and regulating agent A for the machine-made sand concrete.
Example 2
The material is prepared from the following raw materials in parts by weight: 250 parts of active exciting agent for treating solid waste, 30 parts of triisopropanolamine, 15 parts of stearic acid monoglyceride, 7 parts of phosphate compound, 6 parts of fumed silica, 30 parts of potassium silicate, 2 parts of sodium fluoride and 500 parts of water are stirred at low speed for 1 hour at the temperature of 35 ℃ to obtain the reinforcing regulator B for the machine-made sand concrete. The fumed silica is fumed silica.
Example 3
The material is prepared from the following raw materials in parts by weight: 250 parts of active exciting agent for treating solid waste, 40 parts of triisopropanolamine, 20 parts of carboxylic acid-sulfonic acid-acrylate terpolymer, 6 parts of alkylphenol polyoxyethylene, 6 parts of organic bentonite, 40 parts of potassium silicate, 20 parts of sodium hydroxide and 500 parts of water are stirred at a low speed for 1 hour at a temperature of 25 ℃ to obtain the reinforcing and regulating agent C for the machine-made sand concrete.
Example 4
The material is prepared from the following raw materials in parts by weight: 260 parts of active exciting agent for treating solid wastes, 30 parts of monoethanol diisopropanolamine, 5 parts of hexenyl bis-stearamide, 10 parts of alkylphenol polyoxyethylene ether, 6 parts of diatomite and potassium silicate50Stirring 30 parts of sodium sulfate and 600 parts of water at a low speed for 1 hour at the temperature of 30 ℃ to obtain the cement for machine-made sand concreteA strong modifier D.
Example 5
The material is prepared from the following raw materials in parts by weight: 300 parts of active exciting agent for treating solid waste, 40 parts of triisopropanolamine, 5 parts of tristearin, 8 parts of fatty alcohol-polyoxyethylene ether, 6 parts of zeolite, 30 parts of potassium silicate, 5 parts of ethylenediamine, 20 parts of sodium silicate and 500 parts of water are stirred at a low speed for 1 hour at the temperature of 30 ℃ to obtain the machine-made reinforcing regulator E for concrete.
Based on the same invention concept, the invention also provides concrete, the concrete adopts the reinforcing and regulating agent for the machine-made sand concrete, and the addition amount of the reinforcing and regulating agent for the machine-made sand concrete is 0.2 percent of the total weight of the cementing material components.
Concrete experimental material
Cement: tianshan P.O 42.5.5
Fly ash: xinjiang II fly ash
Mineral powder: xinjiang Dai S75 grade mineral powder
River sand: fineness modulus is 2.8, mud content is 1.6%
Stone: the stone in the Korla quarry and the continuous graded stone of 5-20 mm.
Water reducing agent: YS-L-G polycarboxylic acid high-efficiency water reducing agent
Machine-made sand reinforcing regulator: A. b, C, D, E, the addition amount is 0.2% of the total amount of the cementing materials (namely cement, fly ash and mineral powder) in the concrete.
The concrete formulation is as follows 1:
table 1 concrete formulation table
Table 2 concrete experimental data:
it is apparent from the concrete experimental data in table 2 above that, under the condition of reducing the cement consumption, the machine-made sand strengthening regulator is added in a certain proportion, under the condition of not reducing the water consumption of single-side concrete, the working performance of the fresh concrete is not affected by the reduction of the cement consumption, and the later strength of the concrete is obviously increased under the condition of keeping the early strength level. Therefore, the reinforcing and regulating agent for machine-made sand concrete provided by the invention has the effects of saving resources and improving the quality of concrete, and has strong popularization and application values.
Those of skill in the art will understand that the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more of the embodiments or examples described herein.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.
Claims (8)
1. A reinforcing and regulating agent for machine-made sand concrete is characterized by comprising, by weight, 300 parts of an active excitant for treating solid waste, 10-30 parts of an alcohol amine compound, 5-20 parts of a dispersant, 4-10 parts of a penetrating agent, 3-8 parts of a thickening agent, 30-50 parts of potassium silicate, 2-30 parts of an additive and 600 parts of water; the active excitant is a copolymerization substance which is composed of inorganic polymer aluminosilicate minerals containing silicon oxide and bonded by silane and a coupling polyelectrolyte dispersing agent.
2. The reinforcing agent for machine-made sand concrete as claimed in claim 1, wherein the dispersing agent is at least one selected from the group consisting of alkenyl distearamide, stearic acid monoglyceride, tristearic acid glyceride and a carboxylic acid-sulfonic acid-acrylate terpolymer.
3. The reinforcing admixture for machine-made sand concrete as claimed in claim 1, wherein said alcohol amine compound is at least one selected from the group consisting of diethanol monoisopropanolamine, monoethanoldiisopropanolamine and triisopropanolamine.
4. The reinforcing modifier for machine-made sand concrete as claimed in claim 1, wherein the penetrating agent is selected from one of fatty alcohol-polyoxyethylene ether, alkylphenol ethoxylate or phosphate compound.
5. The reinforcing modifier for machine-made sand concrete as claimed in claim 1, wherein the thickener is at least one selected from fumed silica, sodium bentonite, organobentonite, diatomaceous earth, attapulgite, zeolite and silica gel.
6. The reinforcing agent for machine-made sand concrete as claimed in claim 1, wherein said additive is at least one selected from the group consisting of fluoride, alkali substance of amine and alkali metal silicate hydroxide.
7. The reinforcing agent for machine-made sand concrete as claimed in claim 1, wherein the temperature of the water is 25 to 35 ℃.
8. The concrete is characterized by comprising cement, fly ash, mineral powder, river sand, stones, a water reducing agent and the reinforcing and adjusting agent for the machine-made sand concrete as claimed in any one of claims 1 to 7, wherein the adding amount of the reinforcing and adjusting agent for the machine-made sand concrete is 0.2% of the total weight of a cementing material.
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Cited By (1)
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| CN114573308A (en) * | 2022-04-01 | 2022-06-03 | 北京市建筑工程研究院有限责任公司 | Seat slurry for installation and construction of wind power steel-concrete tower |
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