CN106116228A - A kind of concrete antifreezing pumping aid - Google Patents
A kind of concrete antifreezing pumping aid Download PDFInfo
- Publication number
- CN106116228A CN106116228A CN201610480899.0A CN201610480899A CN106116228A CN 106116228 A CN106116228 A CN 106116228A CN 201610480899 A CN201610480899 A CN 201610480899A CN 106116228 A CN106116228 A CN 106116228A
- Authority
- CN
- China
- Prior art keywords
- parts
- concrete
- water
- pumping aid
- sodium
- 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
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/20—Retarders
- C04B2103/22—Set retarders
-
- 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
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
-
- 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
- C04B2103/60—Agents for protection against chemical, physical or biological attack
-
- 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
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/601—Agents for increasing frost resistance
-
- 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
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable mixtures
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to technical field of concrete additives, particularly to a kind of concrete antifreezing pumping aid, it is made up of the raw material of following weight portion: polycarboxylate water-reducer 40～60 parts, alkyl polyglucoside 3～11 parts, lauric acid amide of ethanol 4～12 parts, Polyethylene Glycol 1～5 parts, sodium tartrate 4～12 parts, gluceptate sodium 1～8 parts, zinc stearate 0.8～1.6 parts, water 30～50 parts.The concrete antifreezing pumping aid of the present invention can improve concrete frost resistance, can meet again pumping admixture performance requirement, meet pumping construction demand.
Description
Technical field
The invention belongs to technical field of concrete additives, particularly to a kind of concrete antifreezing pumping aid.
Background technology
At present, general concrete the most all uses the technique of pumping to pour into a mould, accordingly, it would be desirable to concrete has
Good mobility and pumpability, but owing to the concrete of mixing plant is to be transported to construction from mixing plant by concrete mixer truck
Scene, once traffic jam or road are farther out, the overlong time of the concrete experience being stirred, it may occur that mobility heavy losses
And cannot pump.And the problem occurring solving this respect of concrete pump-feed agent.Concrete pump-feed agent is that one can improve coagulation
The additive of soil mixture pump-conveying property, make concrete mix have can pass through conveyance conduit, do not block, do not isolate,
The performance that visco-plasticity is good, it is generally composited by water reducer, retarder, air entraining agent and lubricant etc..
But existing pumping admixture has the disadvantage in that inferior suitability, it is typically only capable to adapt to minority cement type, flowing
Property bad, under the conditions of winter low temperature separate out crystal, precipitation, cause line clogging, it is impossible to normally use, meanwhile, quality is the most unstable
Fixed, slump-loss is fast, owing to there is any of the above technical problem during concrete uses, has a strong impact on concrete various
Engineering.Along with the development of concrete construction engineering, the performance of concrete be it is also proposed higher requirement, Long Qishi
It is more prominent that the frost resistance index of concrete shows.The current joint demand being to meet concrete performance and construction, common side
Method is in concrete, is separately added into one or two kinds of functional additives, and pumping admixture forms mixture, and this not only increases
Add difficulty of construction and production cost, and easily occurred that in several concrete admixture, same or like effect component repeats to mix
Enter, cause incorporation excess or leak situations such as adding, add, especially run into the bad several concrete that even can not mix of intermiscibility
During additive, can reduce the usefulness of additive, its result the lighter causes the secret water of concrete, isolates, hardens, and decreases up to lose work
Making performance, thus can not pump, severe one can cause construction safety accident and serious concrete quality accident, thus jeopardizes building
Thing safe life.Therefore, develop one and can improve concrete frost resistance, pumping admixture performance requirement can be met again, meet pumping
The concrete admixture of construction demand, tool is of great significance.
Summary of the invention
The technical problem to be solved is to provide concrete antifreezing pumping aid, and it can improve concrete antifreezing
Property, pumping admixture performance requirement can be met again, meet pumping construction demand.
For achieving the above object, technical scheme to be solved by this invention is:
The present invention provides a kind of concrete antifreezing pumping aid, is made up of the raw material of following weight portion: polycarboxylate water-reducer 40
～60 parts, alkyl polyglucoside 3～11 parts, lauric acid amide of ethanol 4～12 parts, Polyethylene Glycol 1～5 parts, sodium tartrate 4～12
Part, gluceptate sodium 1～8 parts, zinc stearate 0.8～1.6 parts, water 30～50 parts.
Preferably, concrete antifreezing pumping aid of the present invention, it is made up of the raw material of following weight portion: polycarboxylic acids diminishing
Agent 45～55 parts, alkyl polyglucoside 5～9 parts, lauric acid amide of ethanol 6～10 parts, Polyethylene Glycol 2～4 parts, sodium tartrate 6～
10 parts, gluceptate sodium 2～6 parts, zinc stearate 1～1.4 parts, water 35～45 parts.
It is highly preferred that concrete antifreezing pumping aid of the present invention, it is made up of the raw material of following weight portion: polycarboxylic acids subtracts
50 parts of water preparation, alkyl polyglucoside 7 parts, lauric acid amide of ethanol 8 parts, Polyethylene Glycol 3 parts, sodium tartrate 8 parts, gluceptate sodium 4
Part, zinc stearate 1.2 parts, 40 parts of water.
Preferably, concrete antifreezing pumping aid of the present invention also includes hydroxypropyl methyl cellulose 2～6 weight portion.Hydroxypropyl
Methylcellulose can in concrete effective water conservation, and slowly discharge portion of water along with aquation, the aquation for cement carries
Watering, improves cement fluidity, promotes hydrated cementitious, reduces cement consumption, has with sodium tartrate and gluceptate sodium compatibility
Good deferred action is had to have.
It is highly preferred that concrete antifreezing pumping aid of the present invention also includes hydroxypropyl methyl cellulose 4 weight portion.
The polycarboxylate water-reducer of the present invention can be greatly improved the dispersion effect between gelling material particles, can keep
In the case of the mixture ratio of mud is constant, improve its service behaviour；In the situation that holding concrete workability is constant, reduce coagulation
Local prescription water consumption, improves concrete strength, improves water-reducing rate, significantly improves concrete slump gradual loss and ask faster
Topic, reduces loss of slump.With other material combination, also overcome slump retaining under polycarboxylate water-reducer hot environment not enough, temperature
Degree sensitivity is strong, and polycarboxylate water-reducer of the same race is constructed in Various Seasonal, and concrete slump retaining such as differs greatly at the problem.
The alkyl polyglucoside of the present invention is synthesized by Renewable resource natural fat alcohol and glucose, is that a kind of performance is more complete
The new non-ionic surfactants in face, it has the characteristic of conventional nonionic and anion surfactant concurrently, has high surface
Active, good ecological security and intermiscibility, be internationally recognized first-selection " green " functional surfactant.Itself and other
Raw material one works, it is possible to increase the stability of bubble, with lauric acid amide of ethanol, Polyethylene Glycol compatibility, introduces abundant
Small and bubble of uniform size, improve anti-thawing and the durability of concrete, additionally it is possible to the intensity of Concrete Structure, carry
The anti-isolation bleeding capacity of high concrete.
Sodium tartrate and gluceptate sodium compatibility have the effect of slow setting, simultaneously, additionally it is possible to improve pumping admixture and concrete
Adaptability, improve the workability of concrete, improve further the anti-isolation bleeding capacity of concrete.
The zinc stearate that the present invention adds has more preferable lubricity, keeps the preferable mobility of concrete, simultaneously can
Improve early age strength of concrete, improve the workability of concrete.Mix additionally, zinc stearate also overcomes polycarboxylate water-reducer at height
Closing in material, low water binder ratio Concrete, concrete viscosity is high, the problem being unfavorable for construction.
Polyethylene Glycol therein can also reduce the effect of concrete freezing point, improves the anti-freezing property of concrete.
Gluceptate sodium and zinc stearate mix the protecting film that can also promote that rebar surface forms densification, thus prevent from mixing
The corrosion of the internal reinforcing bar of solidifying soil.
Compared to existing technology, the beneficial effects of the present invention is:
1, the concrete antifreezing pumping aid of the present invention can significantly improve concrete frost resistance, and through measuring, freeze thawing resistance circulates
Number of times can reach 300 times.
2, the concrete antifreezing pumping aid of the present invention is being saved while cement consumption more than 13%, additionally it is possible to improve 3,7,
28 days comprcssive strength 26～42%.
3, the concrete antifreezing pumping aid of the present invention have good retarding effect, initial set and final setting time difference be-90～+
120min。
4, the concrete antifreezing pumping aid plastication of the present invention is strong, is keeping the ratio of mud and the constant situation of cement consumption
Under, the slump can be brought up to 16～22cm by 5～7cm, and the 60min slump is not lost.
5, the concrete antifreezing pumping aid of the present invention has good water reducing ability, and anti-bleeding, wherein water-reducing rate reaches 32%
Above, bleeding rate reduces at least 49%.
6, the concrete antifreezing pumping aid of the present invention and other concrete admixture have good plyability, and with various
Concrete adaptability is good.
7, the concrete antifreezing pumping aid corrosion-resisting function of the present invention, effectively protects reinforcing bar.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described, but the invention is not limited in these embodiments.
Embodiment 1
A kind of concrete antifreezing pumping aid, is made up (mix homogeneously) of the raw material of following weight portion: polycarboxylic acids diminishing
Agent 60 parts, alkyl polyglucoside 3 parts, lauric acid amide of ethanol 4 parts, Polyethylene Glycol 1 part, sodium tartrate 4 parts, hydroxypropyl methyl fiber
Element 6 parts, gluceptate sodium 8 parts, zinc stearate 1.6 parts, 30 parts of water.
Embodiment 2
A kind of concrete antifreezing pumping aid, is made up (mix homogeneously) of the raw material of following weight portion: polycarboxylic acids diminishing
Agent 45 parts, alkyl polyglucoside 9 parts, lauric acid amide of ethanol 6 parts, Polyethylene Glycol 4 parts, sodium tartrate 10 parts, gluceptate sodium 6
Part, zinc stearate 1.4 parts, 35 parts of water.
Embodiment 3
A kind of concrete antifreezing pumping aid, is made up (mix homogeneously) of the raw material of following weight portion: polycarboxylic acids diminishing
Agent 50 parts, alkyl polyglucoside 7 parts, lauric acid amide of ethanol 8 parts, Polyethylene Glycol 3 parts, sodium tartrate 8 parts, hydroxypropyl methyl fiber
Element 4 parts, gluceptate sodium 4 parts, zinc stearate 1.2 parts, 40 parts of water.
Embodiment 4
A kind of concrete antifreezing pumping aid, is made up (mix homogeneously) of the raw material of following weight portion: polycarboxylic acids diminishing
Agent 55 parts, alkyl polyglucoside 5 parts, lauric acid amide of ethanol 10 parts, Polyethylene Glycol 2 parts, sodium tartrate 6 parts, hydroxypropyl methyl is fine
Dimension element 3 parts, gluceptate sodium 2 parts, zinc stearate 1 part, 45 parts of water.
Embodiment 5
A kind of concrete antifreezing pumping aid, is made up (mix homogeneously) of the raw material of following weight portion: polycarboxylic acids diminishing
Agent 40 parts, alkyl polyglucoside 11 parts, lauric acid amide of ethanol 12 parts, Polyethylene Glycol 5 parts, sodium tartrate 12 parts, hydroxypropyl methyl
Cellulose 2 parts, gluceptate sodium 1 part, zinc stearate 0.8 part, 50 parts of water.
Claims (5)
1. a concrete antifreezing pumping aid, it is characterised in that be made up of the raw material of following weight portion: polycarboxylate water-reducer 40～
60 parts, alkyl polyglucoside 3～11 parts, lauric acid amide of ethanol 4～12 parts, Polyethylene Glycol 1～5 parts, sodium tartrate 4～12 parts,
Gluceptate sodium 1～8 parts, zinc stearate 0.8～1.6 parts, water 30～50 parts.
Concrete antifreezing pumping aid the most according to claim 1, it is characterised in that be made up of the raw material of following weight portion:
Polycarboxylate water-reducer 45～55 parts, alkyl polyglucoside 5～9 parts, lauric acid amide of ethanol 6～10 parts, Polyethylene Glycol 2～4 parts, wine
Stone acid sodium 6～10 parts, gluceptate sodium 2～6 parts, zinc stearate 1～1.4 parts, water 35～45 parts.
Concrete antifreezing pumping aid the most according to claim 2, it is characterised in that be made up of the raw material of following weight portion:
Polycarboxylate water-reducer 50 parts, alkyl polyglucoside 7 parts, lauric acid amide of ethanol 8 parts, Polyethylene Glycol 3 parts, sodium tartrate 8 parts, Portugal heptan
Sodium saccharate 4 parts, zinc stearate 1.2 parts, 40 parts of water.
4. according to the concrete antifreezing pumping aid described in claims 1 to 3 any one, it is characterised in that: also include hydroxypropyl
Methylcellulose 2～6 weight portion.
Concrete antifreezing pumping aid the most according to claim 4, it is characterised in that: also include hydroxypropyl methyl cellulose 4
Weight portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610480899.0A CN106116228A (en) | 2016-06-24 | 2016-06-24 | A kind of concrete antifreezing pumping aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610480899.0A CN106116228A (en) | 2016-06-24 | 2016-06-24 | A kind of concrete antifreezing pumping aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106116228A true CN106116228A (en) | 2016-11-16 |
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ID=57266613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610480899.0A Pending CN106116228A (en) | 2016-06-24 | 2016-06-24 | A kind of concrete antifreezing pumping aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106116228A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106866036A (en) * | 2017-03-15 | 2017-06-20 | 中交第三公路工程局有限公司 | The method for improving bituminous concrete dynamic stability |
| CN109279807A (en) * | 2018-09-20 | 2019-01-29 | 贵州凯襄新材料有限公司 | A kind of pumping admixture suitable for light aggregate concrete |
| CN112608421A (en) * | 2019-11-25 | 2021-04-06 | 科之杰新材料集团有限公司 | Preparation method of air-entraining ether polycarboxylate superplasticizer |
| CN112608420A (en) * | 2019-11-25 | 2021-04-06 | 科之杰新材料集团有限公司 | Preparation method of air-entraining type ester polycarboxylate superplasticizer |
| CN112708042A (en) * | 2019-11-25 | 2021-04-27 | 科之杰新材料集团有限公司 | Shrinkage-reducing polycarboxylate superplasticizer and preparation method thereof |
| CN116375423A (en) * | 2023-03-31 | 2023-07-04 | 深圳市龙岗大工业区混凝土有限公司 | Environment-friendly impervious concrete and preparation method thereof |
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| CN101244909A (en) * | 2008-03-24 | 2008-08-20 | 湖南省建筑工程集团总公司 | Highly durable high slump loss resistant no-bleeding concrete pump delivering agent |
| CN101948262A (en) * | 2010-09-09 | 2011-01-19 | 镇江市鑫塔混凝土外加剂有限公司 | Efficient pumping aid |
| CN102060463A (en) * | 2010-12-03 | 2011-05-18 | 山东宏艺科技股份有限公司 | Low-cost concrete antifreezing pumping aid and preparation method thereof |
| CN103641358A (en) * | 2013-11-05 | 2014-03-19 | 上海市建筑构件制品有限公司 | A polycarboxylate-type intermediate-efficiency pumping aid used for premix commodity pump concrete |
| CN104402299A (en) * | 2014-10-31 | 2015-03-11 | 桂林华越环保科技有限公司 | Concrete pumping agent |
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2016
- 2016-06-24 CN CN201610480899.0A patent/CN106116228A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101244909A (en) * | 2008-03-24 | 2008-08-20 | 湖南省建筑工程集团总公司 | Highly durable high slump loss resistant no-bleeding concrete pump delivering agent |
| CN101948262A (en) * | 2010-09-09 | 2011-01-19 | 镇江市鑫塔混凝土外加剂有限公司 | Efficient pumping aid |
| CN102060463A (en) * | 2010-12-03 | 2011-05-18 | 山东宏艺科技股份有限公司 | Low-cost concrete antifreezing pumping aid and preparation method thereof |
| CN103641358A (en) * | 2013-11-05 | 2014-03-19 | 上海市建筑构件制品有限公司 | A polycarboxylate-type intermediate-efficiency pumping aid used for premix commodity pump concrete |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106866036A (en) * | 2017-03-15 | 2017-06-20 | 中交第三公路工程局有限公司 | The method for improving bituminous concrete dynamic stability |
| CN109279807A (en) * | 2018-09-20 | 2019-01-29 | 贵州凯襄新材料有限公司 | A kind of pumping admixture suitable for light aggregate concrete |
| CN112608421A (en) * | 2019-11-25 | 2021-04-06 | 科之杰新材料集团有限公司 | Preparation method of air-entraining ether polycarboxylate superplasticizer |
| CN112608420A (en) * | 2019-11-25 | 2021-04-06 | 科之杰新材料集团有限公司 | Preparation method of air-entraining type ester polycarboxylate superplasticizer |
| CN112708042A (en) * | 2019-11-25 | 2021-04-27 | 科之杰新材料集团有限公司 | Shrinkage-reducing polycarboxylate superplasticizer and preparation method thereof |
| CN112708042B (en) * | 2019-11-25 | 2021-11-19 | 科之杰新材料集团有限公司 | Shrinkage-reducing polycarboxylate superplasticizer and preparation method thereof |
| CN112608421B (en) * | 2019-11-25 | 2022-02-18 | 科之杰新材料集团有限公司 | Preparation method of air-entraining ether polycarboxylate superplasticizer |
| CN112608420B (en) * | 2019-11-25 | 2022-02-18 | 科之杰新材料集团有限公司 | Preparation method of air-entraining type ester polycarboxylate superplasticizer |
| CN116375423A (en) * | 2023-03-31 | 2023-07-04 | 深圳市龙岗大工业区混凝土有限公司 | Environment-friendly impervious concrete and preparation method thereof |
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Application publication date: 20161116 |