CN102775090A - Polycarboxylic-acid pumping aid and application thereof - Google Patents
Polycarboxylic-acid pumping aid and application thereof Download PDFInfo
- Publication number
- CN102775090A CN102775090A CN2012103000076A CN201210300007A CN102775090A CN 102775090 A CN102775090 A CN 102775090A CN 2012103000076 A CN2012103000076 A CN 2012103000076A CN 201210300007 A CN201210300007 A CN 201210300007A CN 102775090 A CN102775090 A CN 102775090A
- Authority
- CN
- China
- Prior art keywords
- acid series
- polycarboxylic acid
- concrete
- pumping agent
- polycarboxylic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to the field of construction materials, particularly a polycarboxylic-acid pumping aid and application thereof. The polycarboxylic-acid pumping aid is prepared from the following raw materials in parts by weight: 250-325 parts of polycarboxylic-acid water reducing agent, 31-50 parts of retarder, 8-12 parts of sodium lignosulfonate and 675-750 parts of water. The polycarboxylic-acid pumping aid provided by the invention has the advantages of low doping amount, high water reducing rate (up to more than 30%), favorable slump resistance (the slump loss after 1 hour is less than 15mm) and great contribution to concrete strength (the compression strength is enhanced by more than 85% after 7 days, and more than 70% after 28 days).
Description
Technical field
The present invention relates to building material field, be specifically related to a kind of polycarboxylic acid series high-performance pumping agent.
Background technology
Concrete pump-feed agent is a kind of admixture when being used for concrete mixing, construction, can increase concrete workability, makes concrete have good flowability and pumpability.At present; Most of pumping agent is taked method of double crossing production; Promptly with several kinds of water reducers having used in routine at present and have the admixture that helps pumping function and mix according to a certain percentage and obtain, the water reducer that adopts mostly mainly is water reducers such as naphthalene system, amino system and fatty family.Yet naphthalene water reducer exists that concrete slump is big through time loss, viscosity is too high, with shortcomings such as cement adaptability are bad; The molecular weight of thionamic acid based water reducer hour causes the cement slurry bleeding very much easily, and concrete slump loss is very fast, but molecular weight is when too big, and its diminishing dispersiveness is affected again; The aliphatics based water reducer is a brown liquid, make concrete, the mortar easy colorizing of the system of mixing, the concrete that uses it to mix system separately also exist the slump through the time shortcomings such as loss is fast.
Poly carboxylic acid series water reducer is the third generation water reducer of excellent combination property, just begins in developed country's production applications such as Japan, Germany, the U.S. from late 1980s.It has water-reducing rate height, concrete slump through the time loss little, volume is low,, advantage such as the feature of environmental protection good big to the concrete strength contribution; Demonstrate extraordinary application prospect, its synthetic and compounded technology has become the focus of domestic and international concrete admixture research and development.At present, poly carboxylic acid series water reducer is also not long in the time that China occurs, and it is synthetic and compounded technology is in urgent need to be improved.Applicant of the present invention is devoted for years in the research of poly carboxylic acid series water reducer compounding coagulation soil with pumping agent.
Summary of the invention
The present invention provides that a kind of volume is low, water-reducing rate is high (water-reducing rate reaches more than 30%), protect collapsing property good (1 hour slump through time loss less than 15mm), to the polycarboxylic acid series pumping agent of concrete strength contribution big (ultimate compression strength improved more than 85% in 7 days, and ultimate compression strength improved more than 70% in 28 days).
Technical scheme of the present invention is:
A kind of polycarboxylic acid series pumping agent, form by the raw material of following weight part:
Preferably, said poly carboxylic acid series water reducer is an ethers polycarboxylic acid water reducing agent.
Preferably, the solid content of said poly carboxylic acid series water reducer is 40%.
Preferably, said retardant is at least a in Sunmorl N 60S or the Trisodium Citrate.
Preferably, the purity of said Sunmorl N 60S is more than the 98wt%.
Preferably, the purity of said Trisodium Citrate is more than the 99wt%.
Preferably, the polycarboxylic acid series pumping agent, form by the raw material of following weight part:
The application of polycarboxylic acid series pumping agent in the C15-C60 concrete.
The addition content of polycarboxylic acid series pumping agent is the 1-1.7wt% of gelling material in the concrete.
Beneficial effect of the present invention:
Gained pumping agent of the present invention is a liquid, is applicable to various silicate cements; It has that volume is low, water-reducing rate is high (water-reducing rate reaches more than 30%), protect collapsing property good (1 hour slump through time loss less than 15mm), to the advantage of concrete strength contribution big (ultimate compression strength improved more than 85% in 7 days, and ultimate compression strength improved more than 70% in 28 days).
The subsidiary material kind such as slow setting, bleed that the invention has the advantages that use is less, and various group partition inter-capacitives are better, and the existence of insolubles, swimmer and pungent odour has been avoided in agent as liquid pumping; Phenomenons such as layering, deposition, severe corrosive do not appear yet; And possess good water-reducing rate, protect collapsing property, lower pressure bleeding, certain bleed performance; Can reduce the heat-transmission of cement early water, its excellent combination property is worth promoting on a large scale.
Application of the present invention will reduce merchant's concrete production cost significantly, and be more convenient for discussing in the concrete production process its controllable quality, will be enterprise's cost efficiency, promote industrial competition and play strong pushing effect.The present invention also will help poly carboxylic acid series water reducer the applying of this area, and have bigger economic benefit and social benefit.
Embodiment
The present invention provides a kind of polycarboxylic acid series pumping agent, is made up of the raw material of following weight part:
Preferably, said poly carboxylic acid series water reducer is an ethers polycarboxylic acid water reducing agent.
Preferably, the solid content of said poly carboxylic acid series water reducer is 40%.
Preferably, said retardant is at least a in Sunmorl N 60S or the Trisodium Citrate.
Preferably, the purity of said Sunmorl N 60S is more than the 98wt%; If the purity of Sunmorl N 60S is lower than 98wt%, because foreign matter content raises, the active principle reduction can cause the concrete retarding poor effect, and not enough to the concrete strength contribution.
Preferably, the purity of said Trisodium Citrate is more than the 99wt%; If the purity of Trisodium Citrate is lower than 99wt%, because foreign matter content raises, the active principle reduction can cause the concrete retarding poor effect.
Preferably, the polycarboxylic acid series pumping agent, form by the raw material of following weight part:
Sunmorl N 60S, Trisodium Citrate all play retarding effect among the present invention, and sodium lignosulfonate (wooden sodium) has had diminishing, slow setting, three kinds of effects of bleed concurrently.In addition, the consumption of Sunmorl N 60S, Trisodium Citrate, sodium lignosulfonate can be adjusted according to concrete environment for use temperature among the present invention, and its consumption raises and can suitably increase with daily mean temperature.
The present invention also provides the preparation method of above-mentioned polycarboxylic acid series pumping agent, is specially: poly carboxylic acid series water reducer is mixed according to said ratio with water, add retardant, sodium lignosulfonate again, the material mixing is promptly got polycarboxylic acid series pumping agent of the present invention.
The application of polycarboxylic acid series pumping agent in the C15-C60 concrete.
According to GB50010-2010 " Code for design of concrete structures " regulation, normal concrete is divided into 14 grades, that is: C15, C20, C25, C30, C35, C40, C45, C50, C55, C60, C65, C70, C75, C80.For example, strength grade is that the concrete of C30 is meant 30MPa≤fcu, k < 35MPa.The C15-C60 here comprises C15, C20, C25, C30, C35, C40, C45, C50, C55, the concrete of these ten strength marks of C60.
The application of polycarboxylic acid series pumping agent in the C15-C60 concrete, its addition content are the 1-1.7wt% of gelling material in the concrete.
In order to understand the present invention better, further specify the present invention below in conjunction with embodiment.
Embodiment 1
Get LonS-Mw water reducing type poly carboxylic acid mother liquor (ethers; 40% solid content) 3.25kg; After water 6.75kg mixes; Add Sunmorl N 60S (content 98.5%) 0.3kg, Trisodium Citrate (content 99%) 0.07kg, sodium lignosulfonate 0.12kg successively, stir, promptly get the polycarboxylic acid series high-performance pumping agent.It is the 1%-1.2wt% of gel material content in the concrete that the gained pumping agent is recommended volume.
Embodiment 2
Get LonS-Mw water reducing type poly carboxylic acid mother liquor (ethers; 40% solid content) 2.50kg; After water 7.50kg mixes; Add Sunmorl N 60S (content 98.5%) 0.35kg, Trisodium Citrate (content 99%) 0.06kg, sodium lignosulfonate 0.08kg successively, stir, promptly get the polycarboxylic acid series high-performance pumping agent.It is the 1.5%-1.7wt% of gel material content in the concrete that the gained pumping agent is recommended volume.
The concrete workability of gained polycarboxylic acid series pumping agent of the present invention is good, water-reducing rate high (water-reducing rate reaches more than 30%), 1 hour slump through the time loss less than 15mm; The contrast normal concrete, the concrete of interpolation pumping agent of the present invention all has lifting in various degree in each intensity of coagulating the phase; Concrete after the sclerosis is excellent in aspect performances such as outward appearance, Crack Control, impervious, endurance qualities.In addition, used storage, the transportation equipment of polycarboxylic acid series high-performance pumping agent of the present invention need not often be cleared up, and cleaning frequency can be dropped to annual 1 time for 6 times by every year of routine, had alleviated the pollution to environment greatly; The volume that pumping agent of the present invention is lower in concrete strength contribution big (ultimate compression strength improved more than 85% in 7 days, and ultimate compression strength improved more than 70% in 28 days), to enterprise's cost efficiency, promotes industrial competition and has played strong pushing effect.
Claims (9)
1. polycarboxylic acid series pumping agent, form by the raw material of following weight part:
2. polycarboxylic acid series pumping agent according to claim 1 is characterized in that, said poly carboxylic acid series water reducer is an ethers polycarboxylic acid water reducing agent.
3. polycarboxylic acid series pumping agent according to claim 1 and 2 is characterized in that, the solid content of said poly carboxylic acid series water reducer is 40%.
4. polycarboxylic acid series pumping agent according to claim 1 and 2 is characterized in that, said retardant is at least a in Sunmorl N 60S or the Trisodium Citrate.
5. polycarboxylic acid series pumping agent according to claim 4 is characterized in that, the purity of said Sunmorl N 60S is more than the 98wt%.
6. polycarboxylic acid series pumping agent according to claim 4 is characterized in that, the purity of said Trisodium Citrate is more than the 99wt%.
7. polycarboxylic acid series pumping agent according to claim 4 is characterized in that, said polycarboxylic acid series pumping agent is made up of the raw material of following weight part:
8. each described polycarboxylic acid series pumping agent application in the C15-C60 concrete of claim 1-7.
9. the application of polycarboxylic acid series pumping agent according to claim 8 in the C15-C60 concrete is characterized in that its addition content is the 1-1.7wt% of gelling material in the concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103000076A CN102775090A (en) | 2012-08-22 | 2012-08-22 | Polycarboxylic-acid pumping aid and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103000076A CN102775090A (en) | 2012-08-22 | 2012-08-22 | Polycarboxylic-acid pumping aid and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102775090A true CN102775090A (en) | 2012-11-14 |
Family
ID=47120228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103000076A Pending CN102775090A (en) | 2012-08-22 | 2012-08-22 | Polycarboxylic-acid pumping aid and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102775090A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214210A (en) * | 2013-05-14 | 2013-07-24 | 十九冶成都建设有限公司 | Secondary concrete fluidizing agent |
| CN106116231A (en) * | 2016-06-24 | 2016-11-16 | 桂林华越环保科技有限公司 | A kind of compound concrete high efficiency water reducing agent |
| CN117342820A (en) * | 2023-09-28 | 2024-01-05 | 深圳市名轩建材科技有限公司 | Composite polycarboxylate superplasticizer and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215116A (en) * | 2007-12-27 | 2008-07-09 | 同济大学 | Retardation setting type polycarboxylic acids series water reducing agent |
| CN102351480A (en) * | 2011-06-20 | 2012-02-15 | 北京科技大学 | High performance slip casting material for sealing freezing holes in mines and preparation method thereof |
-
2012
- 2012-08-22 CN CN2012103000076A patent/CN102775090A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215116A (en) * | 2007-12-27 | 2008-07-09 | 同济大学 | Retardation setting type polycarboxylic acids series water reducing agent |
| CN102351480A (en) * | 2011-06-20 | 2012-02-15 | 北京科技大学 | High performance slip casting material for sealing freezing holes in mines and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 《混凝土世界》 20120131 杨柳等 聚羧酸系高性能减水剂与木质磺酸钠复配缓凝型高性能减水剂及泵送剂的研究 第60-62页 , 第1期 * |
| 杨柳等: "聚羧酸系高性能减水剂与木质磺酸钠复配缓凝型高性能减水剂及泵送剂的研究", 《混凝土世界》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214210A (en) * | 2013-05-14 | 2013-07-24 | 十九冶成都建设有限公司 | Secondary concrete fluidizing agent |
| CN106116231A (en) * | 2016-06-24 | 2016-11-16 | 桂林华越环保科技有限公司 | A kind of compound concrete high efficiency water reducing agent |
| CN117342820A (en) * | 2023-09-28 | 2024-01-05 | 深圳市名轩建材科技有限公司 | Composite polycarboxylate superplasticizer and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102849980A (en) | Polycarboxylic series pumping agent and application thereof | |
| CN101037312B (en) | Middle-effective pumping aid | |
| CN107235684B (en) | Recycled fine aggregate ultrahigh-performance concrete and use method thereof | |
| CN103086635A (en) | Pumping agent and application thereof | |
| CN103641358B (en) | Effective pumping aid in premixing commodity packing design polycarboxylic acid series | |
| CN102320789A (en) | High-strength active powder concrete and preparation method | |
| CN102659373B (en) | High-performance corrosion-resisting concrete pile and preparation method thereof | |
| CN101792296B (en) | Concrete erosion-resistant agent based on ultrafine slag powder and use method thereof | |
| CN101580354A (en) | Polycarboxylic retarding high-performance water reducing agent for preparing concrete of middle and low strength grade | |
| CN101747006A (en) | High-performance lightweight aggregate concrete | |
| CN101863072A (en) | Internal curing process for improving performance of high strength and slight expansion concrete | |
| CN107572910A (en) | A kind of high-performance assembled architecture reinforced bar sleeve grouting material and its application method | |
| CN104150840A (en) | C60 full-manufactured sand super high-rise pump concrete | |
| CN109912281B (en) | Impervious plastic concrete for impervious wall and preparation method thereof | |
| CN102936111B (en) | High-performance prestressing duct grouting agent and preparation method thereof | |
| CN102126846B (en) | Manufacturing method for high pumping concrete | |
| CN111908873A (en) | Micro-expansion, early-strength, high-strength, weathering-resistant and low-cost sleeve grouting material and preparation method thereof | |
| CN102531448A (en) | Polycarboxylate high water reducing rate and low bleeding slump retention type high-efficiency pumping agent | |
| CN102775090A (en) | Polycarboxylic-acid pumping aid and application thereof | |
| CN102336533A (en) | Alunite concrete expanding agent | |
| LU101662B1 (en) | Building material product prepared using building gypsum and slaked lime, and preparation method for building material product | |
| CN103121805B (en) | High-performance concrete anti-cracking high efficiency water reducing agent | |
| CN108529918B (en) | Modified aluminum-silicon particles and modifier thereof | |
| CN102173635B (en) | Polycarboxylic acid high-slump-retaining zero-bleeding high-performance water reducing agent | |
| CN103043970A (en) | Concrete for nuclear power station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121114 |