CN102849980A - Polycarboxylic series pumping agent and application thereof - Google Patents
Polycarboxylic series pumping agent and application thereof Download PDFInfo
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- CN102849980A CN102849980A CN2012103628761A CN201210362876A CN102849980A CN 102849980 A CN102849980 A CN 102849980A CN 2012103628761 A CN2012103628761 A CN 2012103628761A CN 201210362876 A CN201210362876 A CN 201210362876A CN 102849980 A CN102849980 A CN 102849980A
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Abstract
The invention relates to a polycarboxylic series pumping agent and application thereof, falling into the technical field of building materials. The pumping agent comprises the following materials by weight: 250-325 parts of polycarboxylic series water-reducing agent, 30-50 parts of retarder, 0.1-1 parts of an air entraining agent, and 675-750 parts of water. The inventive pumping agent has the advantages of good material adaptability, low doping amount, high water-reducing rate above 30%, low gas content below 3.0%, and high contribution to concrete strength (3rd day compression strength improved by above 90%, 7th day compression strength improved by above 85%, and 28th day compression strength improved by above 70%).
Description
Technical field
The present invention relates to building material field, be specifically related to a kind of high-performance polycarboxylic acid series pumping agent and application thereof.
Background technology
Concrete pump-feed agent is a kind of admixture for concrete mixing, when construction, can reduce concrete pumping frictional force, concrete segregation and loss of slump, can improve concrete workability, accelerating construction progress, improve the pumpability of fresh concrete, can improve again the weather resistance of maturing, such as impermeability, frost resistance etc.Be applicable to premixing Commercial Concrete, large fluidity concrete, High-Strength Pumped Concrete, self-compacting concrete, prevention of mass concrete, bridge construction concrete etc.
At present, most of pumping agent is taked method of double crossing production, namely with present conventional several water reducers of using and have the admixture (retardant, air entrapment agent etc.) that helps pumping function and be mixed to get according to a certain percentage, the water reducer of employing is the water reducers such as naphthalene system, amino system and fatty family mostly.Yet naphthalene water reducer exists that water-reducing rate is on the low side, concrete slump through the time loss large, viscosity cross the shortcomings such as high; The molecular weight of aminosulfonic water-reducing agent hour causes the cement slurry bleeding very much easily, and concrete slump loss is very fast, but molecular weight is when too large, and its diminishing dispersiveness is affected again; The aliphatics based water reducer is brown liquid, so that it is painted easily to mix concrete, the mortar of system, also there are the shortcomings such as Slump Time losing of Large is fast in the concrete that uses separately it to mix system.
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,, the advantage such as the feature of environmental protection good large to the concrete strength contribution, high-strength, high durable, have unique advantage above the special concrete, use on normal concrete is also more and more, 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 invention provides a kind ofly have that volume is low, adaptability for materials is strong, water-reducing rate high (water-reducing rate reaches more than 30%), protect collapsing property good (1 hour slump through time loss less than 15mm), air content low (less than 3.0%), large (ultimate compression strength improved more than 90% in 3 days to the concrete strength contribution, 7 days ultimate compression strength improves more than 85%, and ultimate compression strength improved more than 70% in 28 days) the polycarboxylic acid series pumping agent.
Technical scheme of the present invention is:
A kind of polycarboxylic acid series pumping agent is comprised of the raw material of following weight part:
Preferably, the weight of poly carboxylic acid series water reducer and water and be 1000 parts.
Preferably, described poly carboxylic acid series water reducer is ethers polycarboxylic acid water reducing agent.
Preferably, the solid content of described poly carboxylic acid series water reducer is 40%.
Preferably, described retardant is at least a in Sunmorl N 60S, Trisodium Citrate, tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 or the white sugar.
Preferably, the purity of described Sunmorl N 60S is more than the 98wt%.
Preferably, the purity of described Trisodium Citrate is more than the 99wt%.
Preferably, the purity of described tripoly phosphate sodium STPP is more than the 99wt%.
Preferably, the purity of described Sodium hexametaphosphate 99 is more than the 68wt%.
Preferably, described white sugar Sucrose 〉=99.6wt%.
Preferably, described air entrapment agent is at least a in sodium lauryl sulphate, alpha-olefin sodium sulfonate, the triterpenoid saponin.
Preferably, a kind of polycarboxylic acid series pumping agent is comprised of the raw material of following weight part:
Preferably, a kind of polycarboxylic acid series pumping agent is comprised of the raw material of following weight part:
The application of polycarboxylic acid series pumping agent in the C15-C70 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 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%), air content low (less than 3.0%), large (ultimate compression strength improved more than 90% in 3 days to the concrete strength contribution, 7 days ultimate compression strength improves more than 85%, and ultimate compression strength improved more than 70% in 28 days) the polycarboxylic acid series pumping agent.
The composite small powder of the present invention is more extensive, and adjustable leeway is larger, has stronger adaptability for materials.
The invention has the advantages that the various group partition inter-capacitives of pumping agent are better, the existence of insolubles, floating matter and pungent odour has been avoided in agent as liquid pumping, the phenomenons such as layering, precipitation, severe corrosive do not appear yet, and possess good adaptability for materials, water-reducing rate, collapsing property of guarantor, lower pressure bleeding, certain bleed performance can reduce the heat-transmission of cement early water, and 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 the control of its quality product, 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 larger economic benefit and social benefit.
Embodiment
The invention provides a kind of polycarboxylic acid series pumping agent, formed by the raw material of following weight part:
Preferably, the weight of poly carboxylic acid series water reducer and water and be 1000 parts.
Preferably, described poly carboxylic acid series water reducer is ethers polycarboxylic acid water reducing agent.
Preferably, the solid content of described poly carboxylic acid series water reducer is 40%.
Preferably, described retardant is at least a in Sunmorl N 60S, Trisodium Citrate, tripoly phosphate sodium STPP, Sodium hexametaphosphate 99, the white sugar.
Preferably, the purity of described 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 concrete strength is contributed not enough consequence.
Preferably, the purity of described 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.Equally, if other slow setting component content are lower than limit value, may cause equally retarding effect not good, to the not enough consequence of concrete strength contribution.
Preferably, described air entrapment agent is at least a in sodium lauryl sulphate (K12), alpha-olefin sodium sulfonate, the triterpenoid saponin.
Sunmorl N 60S, Trisodium Citrate, tripoly phosphate sodium STPP, Sodium hexametaphosphate 99, white sugar all play the slow setting model retention effect among the present invention, simultaneously concrete strength are had certain contribution.In addition, the consumption of the slow setting components such as Sunmorl N 60S, Trisodium Citrate, tripoly phosphate sodium STPP 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, air entrapment agent by ratio requirement again, the material mixing is namely got polycarboxylic acid series pumping agent of the present invention.
Polycarboxylic acid series pumping agent of the present invention can be widely used in the C15-C70 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 refers to 30MPa≤fcu, k＜35MPa.C15-C70 herein comprises C15, C20, C25, C30, C35, C40, C45, C50, C55, the concrete of these 11 strength marks of C60, C70.
The application of polycarboxylic acid series pumping agent in the C15-C70 concrete, its addition content are the 1-1.7wt% of gelling material in the concrete.
In order to understand better the present invention, 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 successively Sunmorl N 60S (purity 98.5%) 0.3kg, Trisodium Citrate (purity 99%) 0.06kg, tripoly phosphate sodium STPP 0.02kg, white sugar (Sucrose 〉=99.6%) 0.03kg, sodium lauryl sulphate (K12) 0.004kg stirs, and namely gets the polycarboxylic acid series high-performance pumping agent.It is the 1.2wt% of gel material content in the concrete that the gained pumping agent is recommended volume.
The main performance index of this prescription water reducer is as shown in table 1, and visible gained polycarboxylic acid series pumping agent of the present invention is qualified product.
Table 1 poly carboxylic acid series water reducer main performance index
Annotate: employing standard: GB8076-2008, GB8077-2000;
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 successively Sunmorl N 60S (purity 98.5%) 0.25kg, Trisodium Citrate (purity 99%) 0.08kg, Sodium hexametaphosphate 99 (purity 68%) 0.03kg, white sugar (Sucrose 〉=99.6%) 0.03kg, alpha-olefin sodium sulfonate 0.002kg stirs, and namely gets 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.Through detecting, products obtained therefrom meets the relevant regulations of GB8076-2008, GB8077-2000, is qualified product.
The concrete workability of using gained polycarboxylic acid series pumping agent of the present invention is good, 1 hour slump through the time loss less than 15mm; The contrast normal concrete adds the concrete of pumping agent of the present invention, in the intensity of each solidifying phase in various degree lifting is arranged all; 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 greatly alleviated the pollution to environment; The volume that pumping agent of the present invention is lower, large in the concrete strength contribution, to enterprise's cost efficiency, promote industrial competition and played strong pushing effect.
Claims (10)
1. polycarboxylic acid series pumping agent is comprised of the raw material of following weight part:
2. polycarboxylic acid series pumping agent according to claim 1 is characterized in that, described poly carboxylic acid series water reducer is 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 described poly carboxylic acid series water reducer is 40%.
4. polycarboxylic acid series pumping agent according to claim 1 and 2 is characterized in that, described retardant is at least a in Sunmorl N 60S, Trisodium Citrate, tripoly phosphate sodium STPP, Sodium hexametaphosphate 99, the white sugar.
5. polycarboxylic acid series pumping agent according to claim 4 is characterized in that,
The purity of described Sunmorl N 60S is more than the 98wt%;
The purity of described Trisodium Citrate is more than the 99wt%;
The purity of described tripoly phosphate sodium STPP is more than the 99wt%;
The purity of described Sodium hexametaphosphate 99 is more than the 68wt%;
Described white sugar Sucrose 〉=99.6wt%.
6. polycarboxylic acid series pumping agent according to claim 1 and 2 is characterized in that, described air entrapment agent is at least a in sodium lauryl sulphate, alpha-olefin sodium sulfonate, the triterpenoid saponin.
7. polycarboxylic acid series pumping agent according to claim 4 is characterized in that, its raw material by following weight part forms:
8. polycarboxylic acid series pumping agent according to claim 4 is characterized in that, its raw material by following weight part forms:
9. each described polycarboxylic acid series pumping agent application in the C15-C70 concrete of claim 1-8.
10. the application of polycarboxylic acid series pumping agent according to claim 9 in the C15-70 concrete is characterized in that its addition content is the 1-1.7wt% of gelling material in the concrete.
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| CN2012103628761A CN102849980A (en) | 2012-09-26 | 2012-09-26 | Polycarboxylic series pumping agent and application thereof |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103145367A (en) * | 2013-04-02 | 2013-06-12 | 遵义市开泰新型建材有限公司 | Concrete pumping agent |
| CN103214210A (en) * | 2013-05-14 | 2013-07-24 | 十九冶成都建设有限公司 | Secondary concrete fluidizing agent |
| CN103524069A (en) * | 2013-09-26 | 2014-01-22 | 中国十九冶集团有限公司 | Concrete pumping agent as well as preparation method and application thereof |
| CN103708765A (en) * | 2013-12-26 | 2014-04-09 | 曹乃镛 | Regulator for polycarboxylate pumping agents |
| CN105152564A (en) * | 2015-07-20 | 2015-12-16 | 苏州市兴邦化学建材有限公司 | Powdery polycarboxylic acid water reducing agent for commercial concrete |
| CN105174875A (en) * | 2015-10-15 | 2015-12-23 | 重庆富皇混凝土有限公司 | High-fluidity pumping ceramsite concrete and preparation method thereof |
| CN105314922A (en) * | 2015-12-09 | 2016-02-10 | 攀枝花钢企欣宇化工有限公司 | Efficient pumping agent and application thereof |
| CN105884241A (en) * | 2016-04-15 | 2016-08-24 | 安徽省建筑科学研究设计院 | Quick-acting restoring agent for preventing slump loss of pump concrete |
| CN105948552A (en) * | 2016-05-02 | 2016-09-21 | 唐岁寒 | Cementing material additive |
| CN106242355A (en) * | 2016-08-30 | 2016-12-21 | 卓达新材料科技集团威海股份有限公司 | A kind of 3D prints house slip retardation pumping agent |
| CN106380102A (en) * | 2016-08-30 | 2017-02-08 | 卓达新材料科技集团威海股份有限公司 | High efficiency composite pumping aid for house 3D printing slurry |
| CN106431067A (en) * | 2016-08-30 | 2017-02-22 | 卓达新材料科技集团威海股份有限公司 | High-efficiency fluidized pumping aid used for 3D printing house slurry |
| CN107311509A (en) * | 2017-08-04 | 2017-11-03 | 吉林鹏霖混凝土有限公司 | A kind of wet mixing mortar setting time conditioning agent and preparation method and application |
| CN108424026A (en) * | 2018-05-10 | 2018-08-21 | 宁夏新华轩高新技术有限公司 | A kind of polycarboxylic acids pumping admixture and preparation method thereof |
| CN108774297A (en) * | 2018-07-06 | 2018-11-09 | 江苏万邦新材料科技有限公司 | A kind of polycarboxylic acid retarding efficient pumping aid and preparation method thereof |
| CN109095813A (en) * | 2018-08-03 | 2018-12-28 | 山东省水利勘测设计院 | Composite additive and its application in channel side slopes lining concrete technique |
| CN110423041A (en) * | 2019-07-17 | 2019-11-08 | 四川同舟化工科技有限公司 | Guarantor for improving concrete is collapsed effect and easy agent |
| CN110615636A (en) * | 2018-06-20 | 2019-12-27 | 尧柏特种水泥技术研发有限公司 | Benchmark polycarboxylic admixture and method for evaluating cement performance |
| CN111847958A (en) * | 2020-05-25 | 2020-10-30 | 中铁五局集团第四工程有限责任公司 | Composite retarding material and preparation method thereof |
| CN111960718A (en) * | 2020-07-22 | 2020-11-20 | 浙江五龙新材股份有限公司 | Super-retarding efficient pumping aid and application thereof |
| CN114835433A (en) * | 2022-06-20 | 2022-08-02 | 乌兰察布市西蒙鼎新技术开发有限公司 | Stone powder concrete regulator based on modified particles |
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| CN101531481A (en) * | 2008-03-14 | 2009-09-16 | 苏笮斌 | Polycarboxylate high performance water-reducing agent, and composition and preparation method thereof |
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103145367A (en) * | 2013-04-02 | 2013-06-12 | 遵义市开泰新型建材有限公司 | Concrete pumping agent |
| CN103214210A (en) * | 2013-05-14 | 2013-07-24 | 十九冶成都建设有限公司 | Secondary concrete fluidizing agent |
| CN103524069A (en) * | 2013-09-26 | 2014-01-22 | 中国十九冶集团有限公司 | Concrete pumping agent as well as preparation method and application thereof |
| CN103524069B (en) * | 2013-09-26 | 2015-06-17 | 中国十九冶集团有限公司 | Concrete pumping agent as well as preparation method and application thereof |
| CN103708765A (en) * | 2013-12-26 | 2014-04-09 | 曹乃镛 | Regulator for polycarboxylate pumping agents |
| CN103708765B (en) * | 2013-12-26 | 2016-01-20 | 曹乃镛 | A kind of polycarboxylic acid series pumping agent conditioning agent |
| CN105152564A (en) * | 2015-07-20 | 2015-12-16 | 苏州市兴邦化学建材有限公司 | Powdery polycarboxylic acid water reducing agent for commercial concrete |
| CN105174875A (en) * | 2015-10-15 | 2015-12-23 | 重庆富皇混凝土有限公司 | High-fluidity pumping ceramsite concrete and preparation method thereof |
| CN105174875B (en) * | 2015-10-15 | 2017-05-17 | 重庆富皇混凝土有限公司 | High-fluidity pumping ceramsite concrete and preparation method thereof |
| CN105314922A (en) * | 2015-12-09 | 2016-02-10 | 攀枝花钢企欣宇化工有限公司 | Efficient pumping agent and application thereof |
| CN105884241A (en) * | 2016-04-15 | 2016-08-24 | 安徽省建筑科学研究设计院 | Quick-acting restoring agent for preventing slump loss of pump concrete |
| CN105948552A (en) * | 2016-05-02 | 2016-09-21 | 唐岁寒 | Cementing material additive |
| CN106380102A (en) * | 2016-08-30 | 2017-02-08 | 卓达新材料科技集团威海股份有限公司 | High efficiency composite pumping aid for house 3D printing slurry |
| CN106431067A (en) * | 2016-08-30 | 2017-02-22 | 卓达新材料科技集团威海股份有限公司 | High-efficiency fluidized pumping aid used for 3D printing house slurry |
| CN106242355A (en) * | 2016-08-30 | 2016-12-21 | 卓达新材料科技集团威海股份有限公司 | A kind of 3D prints house slip retardation pumping agent |
| CN107311509A (en) * | 2017-08-04 | 2017-11-03 | 吉林鹏霖混凝土有限公司 | A kind of wet mixing mortar setting time conditioning agent and preparation method and application |
| CN108424026B (en) * | 2018-05-10 | 2020-11-06 | 宁夏新华轩高新技术有限公司 | Polycarboxylic acid pumping agent and preparation method thereof |
| CN108424026A (en) * | 2018-05-10 | 2018-08-21 | 宁夏新华轩高新技术有限公司 | A kind of polycarboxylic acids pumping admixture and preparation method thereof |
| CN110615636A (en) * | 2018-06-20 | 2019-12-27 | 尧柏特种水泥技术研发有限公司 | Benchmark polycarboxylic admixture and method for evaluating cement performance |
| CN108774297A (en) * | 2018-07-06 | 2018-11-09 | 江苏万邦新材料科技有限公司 | A kind of polycarboxylic acid retarding efficient pumping aid and preparation method thereof |
| CN109095813A (en) * | 2018-08-03 | 2018-12-28 | 山东省水利勘测设计院 | Composite additive and its application in channel side slopes lining concrete technique |
| CN109095813B (en) * | 2018-08-03 | 2021-05-07 | 山东省水利勘测设计院 | Composite additive and application thereof in channel side slope lining concrete process |
| CN110423041A (en) * | 2019-07-17 | 2019-11-08 | 四川同舟化工科技有限公司 | Guarantor for improving concrete is collapsed effect and easy agent |
| CN111847958A (en) * | 2020-05-25 | 2020-10-30 | 中铁五局集团第四工程有限责任公司 | Composite retarding material and preparation method thereof |
| CN111960718A (en) * | 2020-07-22 | 2020-11-20 | 浙江五龙新材股份有限公司 | Super-retarding efficient pumping aid and application thereof |
| CN114835433A (en) * | 2022-06-20 | 2022-08-02 | 乌兰察布市西蒙鼎新技术开发有限公司 | Stone powder concrete regulator based on modified particles |
| CN114835433B (en) * | 2022-06-20 | 2023-01-31 | 长沙益友建筑科技有限公司 | Stone powder concrete regulator based on modified particles |
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Application publication date: 20130102 |