CN101289291B - Quick coagulation flocculant for anti-washout concrete under water - Google Patents
Quick coagulation flocculant for anti-washout concrete under water Download PDFInfo
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- CN101289291B CN101289291B CN200710065586XA CN200710065586A CN101289291B CN 101289291 B CN101289291 B CN 101289291B CN 200710065586X A CN200710065586X A CN 200710065586XA CN 200710065586 A CN200710065586 A CN 200710065586A CN 101289291 B CN101289291 B CN 101289291B
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0068—Ingredients with a function or property not provided for elsewhere in C04B2103/00
- C04B2103/008—Flocking or deflocking agents
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/60—Flooring materials
- C04B2111/62—Self-levelling compositions
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/74—Underwater applications
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to a quick-set flocculant used for underwater-nondispersed concrete, which is mainly prepared from component A and component B, and the weight ratio between the component A and the component B is 1: 0.2-0.8, wherein, the component A consists of 1 portion by weight of methylcellulose, 1.0-1.5 portions by weight of sulfamic acid series water reducer, 0.2-0.5 portion by weight of lignosulfonate, 0.5-3 portions by weight of fly ash and 1-3 portions by weight of zeolite powder; while the component B consists of 0.3-2 portions by weight of calcium formate, 1-2.5 portions by weight of siliceous dust and 0.5-1.5 portions by weight of calcium metasilicate. The quick-set flocculant used for underwater-nondispersed concrete of the invention can cause underwater grouting mixture to have excellent dispersing resistance, and auto-leveling property, and can reduce the water pollution in pouring underwater grouting mixture, with the solidification time for the construction of underwater nondispersed concrete adjusted from 15 minutes to 10 hours, and has high strength and can keep pumping capacity.
Description
Technical field
The present invention relates to a kind of non-dispersible underwater concrete flocculation agent, particularly a kind of quick coacervation flocculant for anti-washout concrete under water.
Background technology
The non-dispersible underwater concrete flocculation agent, be used for pouring into a mould fast under water mortar, only the slurry and the concrete mix.
Constant temperature culture obtained nutrient solution after CN98124830.6 removed slag plant expressed juice; Grain is pulverized, carry out water treatment and obtain gluten; Above-mentioned plant culturing liquid is mixed with gluten, cultivate after stirring, obtain the vegetable fibrin veneer; Cement and Ultrafine Silicon Powders, water reducer, vegetable fibrin veneer uniform mixing are got final product together.
CN03116916.3 anti-under water concrete admixture that disperses for building is made up of methylcellulose gum, polyacrylamide, dodecane base benzene sulfonic acid sodium salt, naphthalene series high-efficiency water-reducing agent, stearic acid, zeolite powder.
CN86106211 is used for the dabbling additive agent for underwater cement of water for one kind, is to mix by polyacrylamide and shale ashes or with silica flour, can contain anion surfactants such as beta-naphthalenesulfonic-acid formaldehyde condensation compound.
The existing mix flocculation agent that is in the milk that do not disperse under water, adopt cellulose-based flocculation agent, glycan base polymer based flocculating agent, methyl cellulose flocculant, its weak point is the anti-dispersing property deficiency of underwater pouring mix, obviously prolong time of coagulation, can not satisfy the engine request of underwater concrete rapid construction.
Summary of the invention
The technical problem to be solved in the present invention is to avoid weak point of the prior art and provides a kind of and can improve the anti-dispersiveness of non-dispersible underwater concrete mix, obviously shortens concrete coagulating time and reduce loss of slump, satisfy the non-dispersible underwater concrete that the underwater concrete rapid construction requires and coagulate flocculation agent soon.
A kind of quick coacervation flocculant for anti-washout concrete under water, flocculation agent is mainly made by A component and B component, the weight ratio of A component and B component is 1: 0.2～0.8, wherein, the A component is made up of 1 weight part methylcellulose gum, 1.0～1.5 weight part thionamic acid based water reducers, 0.2～0.5 weight part sulfonated lignin, 0.5～3 weight part flyash, 1～3 weight part zeolite powder, and the B component is made up of 0.3～2 weight part calcium formiate, 1～2.5 weight part silicon ash and 0.5～1.5 weight part calcium metasilicate.
Described sulfonated lignin are calcium lignin sulphonate.Flyash 45 μ m tail over≤and 12%.Zeolite powder 45 μ m tail over≤and 15%.The tailing over of silicon ash 45 μ m≤0.01%.
The thionamic acid based water reducer is the condenses of following compound,
(a) thionamic acid, Sulphanilic Acid, 4-amino naphthalenes-1-sulfonic acid or its salt,
(b) trimeric cyanamide, urea, phenol, Whitfield's ointment, Phenylsulfonic acid or phenylformic acid,
(c) formaldehyde.
Fast preparation process of coagulating flocculation agent comprises: after each component of B component is mixed according to parts by weight, the steel ball grinding device that to use particle diameter be 0.5～5 centimetre, account for whole grinding container volumetrical 1/6～1/10 grinds, the A component of 1 weight part is mixed with 0.2～0.8 weight part B component, stir and to use afterwards in 15 minutes.
Quick coacervation flocculant for anti-washout concrete under water of the present invention, the A component is started with from concrete consolidating material, by the positron-electron on the cement granules is produced adsorption, this mixture molecule and cement granules form comparatively wide network structure, make cement granules be difficult to break away from the absorption of mixture molecule, prevent that cement granules runs off, and improves erosion resistibility in the concrete water thereby reach; The B component can impel cement to carry out a large amount of hydration reactions in the extremely short time, emits heat, forms cement stone fast, can adjust concrete time of coagulation according to the volume of this component, satisfies non-dispersible underwater concrete engineering construction design requirements.
The present invention compared with prior art has following beneficial effect,
1, quick coacervation flocculant for anti-washout concrete under water of the present invention, can make the underwater grouting mix have good anti-dispersiveness, self-leveling, water pollution in the time of can reducing the cast of underwater grouting mix, cast has good fillibility to close gap, the loss of the hardening strength that causes because of the dispersion of grouting mix can be reduced, and the cohesive force of grout hardens thing and reinforcing bar can be improved.The slope protection works, the dam foundation that can be applicable to sea, river, rivers and lakes are washed in a pan the recovery project at empty position, the back cover engineering of bridge foundation open caisson by water.
2, quick coacervation flocculant for anti-washout concrete under water of the present invention can make adjust at 15 minutes～10 hours the time of coagulation in the non-dispersible underwater concrete construction, and early strength improves 36%, and keeps pumping power in preceding 30 minutes at concrete coagulation.
Embodiment
Embodiment 1～3
Wherein the methylcellulose gum viscosity in the A component (mPa.s, 2% solution, 20 ℃) is 100000, and pH value (25 ℃ of 1% solution) is 7.2, gelling temp (℃) 50.0-55.0; The thionamic acid based water reducer is that the sulfamate powder water reducer of producing along material of construction company limited is prolonged in Tianjin; Sulfonated lignin are wooden calcium, and its content of lignin is 96.5%, and water-insoluble is 1.2%, and reduzate content≤13%, PH are 4.0～6.0; Employed flyash is the above product of secondary that power station, army provisions city, Tianjin provides, 45 μ m tail over≤and 12%; 45 μ m of zeolite powder tail over≤and 15%; The silicon ash that uses in the B component be to be encrypted silica flour, the tailing over of 45 μ m≤0.01%.
After quick coacervation flocculant for anti-washout concrete under water adds, concrete anti-dispersing property is significantly improved, especially obviously shorten concrete coagulating time, concrete capable of not dispersing was shortened to 30 minutes in 15 hours from initial set time of coagulation, and can keep pumping power, intensity improves 36%, and material cost reduces about 15%.
Claims (6)
1. quick coacervation flocculant for anti-washout concrete under water, it is characterized by: flocculation agent is mainly made by A component and B component, and the weight ratio of A component and B component is 1: 0.2～0.8, wherein,
The A component is made up of 1 weight part methylcellulose gum, 1.0～1.5 weight part thionamic acid based water reducers, 0.2～0.5 weight part sulfonated lignin, 0.5～3 weight part flyash, 1～3 weight part zeolite powder,
The B component is made up of 0.3～2 weight part calcium formiate, 1～2.5 weight part silicon ash and 0.5～1.5 weight part calcium metasilicate.
2. flocculation agent according to claim 1 is characterized in that: described sulfonated lignin are calcium lignin sulphonate.
3. flocculation agent according to claim 1 is characterized in that: described flyash 45 μ m tail over≤and 12%.
4. flocculation agent according to claim 1 is characterized in that: described zeolite powder 45 μ m tail over≤and 15%.
5. flocculation agent according to claim 1 is characterized in that: the tailing over of described silicon ash 45 μ m≤0.01%.
6. flocculation agent according to claim 1 is characterized in that: described thionamic acid based water reducer is the condenses of following compound,
(a) thionamic acid, Sulphanilic Acid, 4-amino naphthalenes-1-sulfonic acid or its salt,
(b) trimeric cyanamide, urea, phenol, Whitfield's ointment, Phenylsulfonic acid or phenylformic acid,
(c) formaldehyde.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710065586XA CN101289291B (en) | 2007-04-17 | 2007-04-17 | Quick coagulation flocculant for anti-washout concrete under water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710065586XA CN101289291B (en) | 2007-04-17 | 2007-04-17 | Quick coagulation flocculant for anti-washout concrete under water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101289291A CN101289291A (en) | 2008-10-22 |
| CN101289291B true CN101289291B (en) | 2010-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710065586XA Expired - Fee Related CN101289291B (en) | 2007-04-17 | 2007-04-17 | Quick coagulation flocculant for anti-washout concrete under water |
Country Status (1)
| Country | Link |
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| CN (1) | CN101289291B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519288B (en) * | 2009-04-03 | 2012-02-22 | 南京瑞迪高新技术公司 | Special additive for underwater undispersed shrinking-free grouting material |
| CN101830665B (en) * | 2010-05-18 | 2012-07-18 | 广东红墙新材料股份有限公司 | Anti-dispersion intensifier for underwater cast-in-place pile concrete and using method thereof |
| CN102092979B (en) * | 2010-12-10 | 2012-11-14 | 马清浩 | Sulfamate water-reducing agent and preparation method thereof |
| CN103524068A (en) * | 2013-10-10 | 2014-01-22 | 丁蕴斌 | Underwater undispersed concrete flocculant |
| CN106946492B (en) * | 2017-03-01 | 2019-07-12 | 中建商品混凝土有限公司 | A kind of non-dispersible underwater concrete additive and preparation method thereof, application |
| CN108675710A (en) * | 2018-04-25 | 2018-10-19 | 中国电力科学研究院有限公司 | A kind of non-dispersible underwater concrete and its construction method |
| CN111153644A (en) * | 2019-12-27 | 2020-05-15 | 哈尔滨理工大学 | High-performance concrete for repairing underwater concrete cracks, preparation method thereof and method for repairing cracks by using high-performance concrete |
| CN111763048A (en) * | 2020-06-28 | 2020-10-13 | 武汉长江科创科技发展有限公司 | Underwater non-dispersion quick-setting and quick-hardening cement-based composite material and preparation method thereof |
| CN111732390B (en) * | 2020-08-09 | 2022-05-17 | 中建西部建设贵州有限公司 | Non-dispersed machine-made sand self-compacting concrete for underwater pile foundation and preparation method thereof |
| CN114751672B (en) * | 2022-04-11 | 2023-03-24 | 中建西部建设湖南有限公司 | Concrete underwater non-dispersant, preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1216755A (en) * | 1998-11-17 | 1999-05-19 | 刘贵堂 | Method for preparing super strength underwater cement and the products therefrom |
| CN1454865A (en) * | 2003-05-15 | 2003-11-12 | 同济大学 | Underwater antidispersion concrete admixture for building |
| CN1911850A (en) * | 2005-08-11 | 2007-02-14 | 中国石油天然气集团公司 | Modified methyl cellulose flocculant for underwater grouting and its manufacturing method |
-
2007
- 2007-04-17 CN CN200710065586XA patent/CN101289291B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1216755A (en) * | 1998-11-17 | 1999-05-19 | 刘贵堂 | Method for preparing super strength underwater cement and the products therefrom |
| CN1454865A (en) * | 2003-05-15 | 2003-11-12 | 同济大学 | Underwater antidispersion concrete admixture for building |
| CN1911850A (en) * | 2005-08-11 | 2007-02-14 | 中国石油天然气集团公司 | Modified methyl cellulose flocculant for underwater grouting and its manufacturing method |
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| CN101289291A (en) | 2008-10-22 |
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Granted publication date: 20100421 Termination date: 20210417 |