CN106348642A - Low-slump-loss concrete pumping agent - Google Patents
Low-slump-loss concrete pumping agent Download PDFInfo
- Publication number
- CN106348642A CN106348642A CN201611084819.6A CN201611084819A CN106348642A CN 106348642 A CN106348642 A CN 106348642A CN 201611084819 A CN201611084819 A CN 201611084819A CN 106348642 A CN106348642 A CN 106348642A
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- CN
- China
- Prior art keywords
- parts
- concrete pumping
- pumping agent
- low
- slump loss
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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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- 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 the technical field of concrete additives and in particular relates to a low-slump-loss concrete pumping agent. The low-slump-loss concrete pumping agent is prepared from the following raw materials in parts by weight: 28 to 46 parts of calcium lignosulphonate, 10 to 22 parts of methylcellulose, 10 to 16 parts of sodium potassium tartrate, 5 to 11 parts of dodecyl dimethyl betaine, 1 to 7 parts of hydroxy ethidene diphosphonic acid and 1 to 7 parts of tributyl phosphate. The low-slump-loss concrete pumping agent provided by the invention has a high slump loss resistant property, can be normally used at 0 DEG C, even at a lower temperature, and is not crystallized; the low-slump-loss concrete pumping agent has high adaptability with cement, can be suitable for various types of cement and has good flowability.
Description
Technical field
The invention belongs to concrete additive technical field, particularly to a kind of low slump loss concrete pumping agent.
Background technology
With the development of the causes such as construction, traffic, water power, municipal administration, complex structure, large-scale concrete works more come
The more, almost all requires to use pump concrete, and be often desirable to concrete have simultaneously slow setting, antifreeze, cracking resistance, antiseepage,
The several functions such as resistant to corrosion.Pump concrete, how by mixing plant centralizedly supply, exists to the spacing in building site, in medium above city
The time that city is transported to building site generally requires 30min～2h, and in the process, concrete slump incurs loss, so that in work
Ground cannot or hardly pump out, and make to pour interruption, component leaves cold seam, lead to engineering defect or quality accident.Summer, ambient temperature
Rising so that this slump-loss is more aggravated.Further, since the concrete of mixing plant is from stirring by concrete mixer truck
Stand transport to job site, once traffic jam or road are farther out, the overlong time of the concrete experience being stirred is it may occur that flow
Dynamic property heavy losses and cannot pump.
General concrete at the construction field (site) all using pumping technique poured into a mould it is therefore desirable to concrete have good
Mobility and pumpability, but adopting one-component water reducer and retarder the water preparation concrete pump-feed agent of current commercial type more
It is formulated, thus has the disadvantage in that inferior suitability, be typically only capable to adapt to minority cement type, mobility is bad, the winter
Separate out crystal (composition is na2so4 or caso4), precipitation under season cryogenic conditions, cause line clogging it is impossible to normal use, with
When, quality extremely unstable, slump-loss is fast.
Content of the invention
The technical problem to be solved is to provide a kind of low slump loss concrete pumping agent, and this pumping admixture has high guarantor
Collapsing property, and normal use does not crystallize under 0 DEG C even more low temperature, the adaptation with cement is strong, adapts to different cement types, mobility
Good.
For achieving the above object, the present invention adopts the following technical scheme that
The present invention provides a kind of low slump loss concrete pumping agent, is made up of the raw material of following weight portion: calcium lignosulfonate
28～46 parts, 10～22 parts of methylcellulose, 10～16 parts of sodium potassium tartrate tetrahydrate, 5～11 parts of empgen BB, hydroxy ethylidene
1～7 part of di 2 ethylhexyl phosphonic acid, 1～7 part of tributyl phosphate.
Preferably, low slump loss concrete pumping agent of the present invention, is made up of the raw material of following weight portion: sulfomethylated lignin
31～43 parts of sour calcium, 12～20 parts of methylcellulose, 11～15 parts of sodium potassium tartrate tetrahydrate, 6～10 parts of empgen BB, hydroxyl
2～6 parts of ethylene-diphosphonic acid, 2～6 parts of tributyl phosphate.
It is highly preferred that low slump loss concrete pumping agent of the present invention, it is made up of the raw material of following weight portion: lignin
37 parts of sulfoacid calcium, 16 parts of methylcellulose, 13 parts of sodium potassium tartrate tetrahydrate, 8 parts of empgen BB, 4 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid,
4 parts of tributyl phosphate.
Low slump loss concrete pumping agent of the present invention, also includes the glycol monoethyl ether of 3～15 weight portions.
Preferably, low slump loss concrete pumping agent of the present invention, also includes the ethylene glycol list first of 5～13 weight portions
Ether.
It is highly preferred that low slump loss concrete pumping agent of the present invention, also include the glycol monoethyl ether of 9 weight portions.
The preparation method of the low slump loss concrete pumping agent of the present invention is: whole raw material mix homogeneously stir 50～
110min, packs.
Compared to existing technology, the beneficial effects of the present invention is:
1st, the low slump loss concrete pumping agent of the present invention has high-collapse-retentivity, and 2 hours slumps of concrete are not lost substantially, and several
It is not acted upon by temperature changes.
2nd, the anti-bleeding of the low slump loss concrete pumping agent of the present invention, education resistance can good, no air pocket, aberration be little, coagulation
Native presentation quality is good.
3rd, the low slump loss concrete pumping agent of the present invention normal use under 0 DEG C even more low temperature does not crystallize, with cement
Adapt to strong, adapt to different cement types, good fluidity.
4th, the low slump loss concrete pumping agent of the present invention does not contain formaldehyde, and alkali content is low, and not chloride ion-containing is corrosion-free to reinforcing bar
Property.
5th, the low slump loss concrete pumping agent properties of product of the present invention are stable: product homogeneity is good, not stratified, do not precipitate.
Specific embodiment
The invention will be further described with reference to embodiments, but the invention is not limited in these embodiments.
Embodiment 1
A kind of low slump loss concrete pumping agent, is made up of the raw material of following weight portion: 28 parts of calcium lignosulfonate, and methyl is fine
22 parts of dimension element, 10 parts of sodium potassium tartrate tetrahydrate, 11 parts of empgen BB, 1 part of 1-hydroxy ethylidene-1,1-diphosphonic acid, 7 parts of tributyl phosphate, second
15 parts of glycol monomethyl ether.
The preparation method of above-mentioned low slump loss concrete pumping agent is: whole raw material mix homogeneously stir 110min, bag
Fill.
Embodiment 2
A kind of low slump loss concrete pumping agent, is made up of the raw material of following weight portion: 31 parts of calcium lignosulfonate, and methyl is fine
20 parts of dimension element, 11 parts of sodium potassium tartrate tetrahydrate, 10 parts of empgen BB, 2 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, 6 parts of tributyl phosphate, second
13 parts of glycol monomethyl ether.
The preparation method of above-mentioned low slump loss concrete pumping agent is: whole raw material mix homogeneously stir 100min, bag
Fill.
Embodiment 3
A kind of low slump loss concrete pumping agent, is made up of the raw material of following weight portion: 34 parts of calcium lignosulfonate, and methyl is fine
18 parts of dimension element, 12 parts of sodium potassium tartrate tetrahydrate, 9 parts of empgen BB, 3 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, 5 parts of tributyl phosphate, second
11 parts of glycol monomethyl ether.
The preparation method of above-mentioned low slump loss concrete pumping agent is: whole raw material mix homogeneously stir 90min, bag
Fill.
Embodiment 4
A kind of low slump loss concrete pumping agent, is made up of the raw material of following weight portion: 37 parts of calcium lignosulfonate, and methyl is fine
16 parts of dimension element, 13 parts of sodium potassium tartrate tetrahydrate, 8 parts of empgen BB, 4 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, 4 parts of tributyl phosphate, second
9 parts of glycol monomethyl ether.
The preparation method of above-mentioned low slump loss concrete pumping agent is: whole raw material mix homogeneously stir 80min, bag
Fill.
Embodiment 5
A kind of low slump loss concrete pumping agent, is made up of the raw material of following weight portion: 40 parts of calcium lignosulfonate, and methyl is fine
14 parts of dimension element, 14 parts of sodium potassium tartrate tetrahydrate, 7 parts of empgen BB, 5 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, 3 parts of tributyl phosphate, second
7 parts of glycol monomethyl ether.
The preparation method of above-mentioned low slump loss concrete pumping agent is: whole raw material mix homogeneously stir 70min, bag
Fill.
Embodiment 6
A kind of low slump loss concrete pumping agent, is made up of the raw material of following weight portion: 43 parts of calcium lignosulfonate, and methyl is fine
12 parts of dimension element, 15 parts of sodium potassium tartrate tetrahydrate, 6 parts of empgen BB, 6 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, 2 parts of tributyl phosphate, second
5 parts of glycol monomethyl ether.
The preparation method of above-mentioned low slump loss concrete pumping agent is: whole raw material mix homogeneously stir 60min, bag
Fill.
Embodiment 7
A kind of low slump loss concrete pumping agent, is made up of the raw material of following weight portion: 46 parts of calcium lignosulfonate, and methyl is fine
10 parts of dimension element, 16 parts of sodium potassium tartrate tetrahydrate, 5 parts of empgen BB, 7 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, 1 part of tributyl phosphate, second
3 parts of glycol monomethyl ether.
The preparation method of above-mentioned low slump loss concrete pumping agent is: whole raw material mix homogeneously stir 50min, bag
Fill.
Claims (6)
1. a kind of low slump loss concrete pumping agent is it is characterised in that be made up of the raw material of following weight portion: calcium lignosulfonate 28
～46 parts, 10～22 parts of methylcellulose, 10～16 parts of sodium potassium tartrate tetrahydrate, 5～11 parts of empgen BB, hydroxy ethylidene two
1～7 part of phosphonic acids, 1～7 part of tributyl phosphate.
2. low slump loss concrete pumping agent according to claim 1 is it is characterised in that raw material system by following weight portion
Become: 31～43 parts of calcium lignosulfonate, 12～20 parts of methylcellulose, 11～15 parts of sodium potassium tartrate tetrahydrate, empgen BB 6
～10 parts, 2～6 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, 2～6 parts of tributyl phosphate.
3. low slump loss concrete pumping agent according to claim 2 is it is characterised in that raw material system by following weight portion
Become: 37 parts of calcium lignosulfonate, 16 parts of methylcellulose, 13 parts of sodium potassium tartrate tetrahydrate, 8 parts of empgen BB, hydroxy ethylidene
4 parts of di 2 ethylhexyl phosphonic acid, 4 parts of tributyl phosphate.
4. the low slump loss concrete pumping agent according to claims 1 to 3 any one it is characterised in that: also include 3～15
The glycol monoethyl ether of weight portion.
5. low slump loss concrete pumping agent according to claim 4 it is characterised in that: also include the second of 5～13 weight portions
Glycol monomethyl ether.
6. low slump loss concrete pumping agent according to claim 5 it is characterised in that: also include the ethylene glycol of 9 weight portions
Monomethyl ether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611084819.6A CN106348642A (en) | 2016-11-30 | 2016-11-30 | Low-slump-loss concrete pumping agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611084819.6A CN106348642A (en) | 2016-11-30 | 2016-11-30 | Low-slump-loss concrete pumping agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106348642A true CN106348642A (en) | 2017-01-25 |
Family
ID=57863037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611084819.6A Pending CN106348642A (en) | 2016-11-30 | 2016-11-30 | Low-slump-loss concrete pumping agent |
Country Status (1)
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| CN (1) | CN106348642A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107445508A (en) * | 2017-08-23 | 2017-12-08 | 钟传新 | A kind of high performance concrete pumping admixture and preparation method thereof |
| CN108191288A (en) * | 2017-12-07 | 2018-06-22 | 浙江老虎山建材有限公司 | A kind of high collapse protection type high performance water reducing agent of polyocarboxy acid and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060042518A1 (en) * | 2004-08-27 | 2006-03-02 | Brown Paul W | Methods of reducing hydroxyl ions in concrete pore solutions |
| CN103214207A (en) * | 2013-02-28 | 2013-07-24 | 浙江老虎山建材有限公司 | Concrete anticorrosive and rust-inhibiting pumping agent |
| CN103588416A (en) * | 2013-11-04 | 2014-02-19 | 甘肃省交通规划勘察设计院有限责任公司 | Sulphoaluminate cement concrete pumping agent |
| CN104098289A (en) * | 2014-07-22 | 2014-10-15 | 同济大学 | Slump retaining type concrete pumping aid doped with CLT (6-chloro-3- toluidine-4-sulfoacid) waste liquid |
-
2016
- 2016-11-30 CN CN201611084819.6A patent/CN106348642A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060042518A1 (en) * | 2004-08-27 | 2006-03-02 | Brown Paul W | Methods of reducing hydroxyl ions in concrete pore solutions |
| CN103214207A (en) * | 2013-02-28 | 2013-07-24 | 浙江老虎山建材有限公司 | Concrete anticorrosive and rust-inhibiting pumping agent |
| CN103588416A (en) * | 2013-11-04 | 2014-02-19 | 甘肃省交通规划勘察设计院有限责任公司 | Sulphoaluminate cement concrete pumping agent |
| CN104098289A (en) * | 2014-07-22 | 2014-10-15 | 同济大学 | Slump retaining type concrete pumping aid doped with CLT (6-chloro-3- toluidine-4-sulfoacid) waste liquid |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107445508A (en) * | 2017-08-23 | 2017-12-08 | 钟传新 | A kind of high performance concrete pumping admixture and preparation method thereof |
| CN108191288A (en) * | 2017-12-07 | 2018-06-22 | 浙江老虎山建材有限公司 | A kind of high collapse protection type high performance water reducing agent of polyocarboxy acid and preparation method thereof |
| CN108191288B (en) * | 2017-12-07 | 2021-07-23 | 浙江老虎山建材有限公司 | High slump loss resistant type polycarboxylic acid high-performance water reducing agent and preparation method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20170125 |