CN107586058A - A kind of high-effective concrete pumping admixture and preparation method thereof - Google Patents
A kind of high-effective concrete pumping admixture and preparation method thereof Download PDFInfo
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- CN107586058A CN107586058A CN201710729174.5A CN201710729174A CN107586058A CN 107586058 A CN107586058 A CN 107586058A CN 201710729174 A CN201710729174 A CN 201710729174A CN 107586058 A CN107586058 A CN 107586058A
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- concrete pumping
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Abstract
The invention discloses a kind of high-effective concrete pumping admixture and preparation method thereof, belong to building material manufacture field.The high-effective concrete pumping admixture is made up of based on the percentage composition of raw material gross weight following each raw material：Prodan 25 35%, sodium lignin sulfonate 12 20%, polycarboxylate water-reducer 6 10%, lauryl sodium sulfate 3 5%, methylcellulose 4 8%, sodium sulphate 1 2%, sodium gluconate 1 2% and water 28 38%.The invention also discloses the preparation method of above-mentioned high-effective concrete pumping admixture.The pumping admixture of the present invention, intensity is high, stable performance, has the effect of high fluidisation, adhesive aggregation, lubrication, slow setting, applied widely, while water reducing ability is good.
Description
Technical field
The present invention relates to a kind of high-effective concrete pumping admixture and preparation method thereof, belong to building material manufacture field.
Background technology
Concrete is building materials important in construction industry.Pumping admixture refers to that the additional of concrete mix pump-conveying property can be improved
Agent.So-called pump-conveying property, be exactly concrete mix have can pass through conveyance conduit, do not block, do not isolate, visco-plasticity it is good
Good performance.Traditional pumping admixture, cohesive strength is low, is not suitable with heavy industrialization use.It is right as civil engineering technology develops
The requirement more and more higher of concrete, it is desirable to which using C60, C80 is more and more extensive to C100 strong concretes, and therefore, having must
A kind of high-effective concrete pumping admixture is studied, to solve the deficiencies in the prior art.
The content of the invention
One of mesh of the present invention, is to provide a kind of high-effective concrete pumping admixture.The pumping admixture of the present invention, can improve concrete
Impervious, freeze proof, durability, concrete slump loss can be reduced, water reducing ability is good, floride-free low alkali, reinforcing bar non-corroding is made
With, be not in alkali-aggregate reaction, be suitable for transport and the pumping construction of long range, it is applied widely.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of high-effective concrete pumping admixture, by raw material gross weight
The percentage composition meter of amount, it is made up of following each raw material：Prodan 25-35%, sodium lignin sulfonate 12-20%, polycarboxylic acids subtract
Aqua 6-10%, lauryl sodium sulfate 3-5%, methylcellulose 4-8%, sodium sulphate 1-2%, sodium gluconate 1-2% and
Water 28-38%.
The present invention pumping admixture, using β-naphthalene iodate formaldehyde condensation products as main component, can be widely used for commerical ready-mixed concrete,
Pump concrete, skyscraper, railway, highway bridge, tunnel, underground engineering, hydraulic and electric engineering engineering, mass concrete, height
Reinforced concrete and deformed bar concrete project.The various technical indicators of the pumping admixture of the present invention are more than " pump in GB8076-2008
Send agent " standard.
The high-effective concrete pumping admixture of the present invention is brown liquid, and density is 1.20 ± 0.02g/mL, solid aqueous rate≤
10%, pH value 7-9, chloride ion content is without flowing degree of net paste of cement >=200mm.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, the percentage composition meter of raw material gross weight, it is made up of following each raw material：Prodan 30%, sulfomethylated lignin
Sour sodium 16%, polycarboxylate water-reducer 8%, lauryl sodium sulfate 4%, methylcellulose 6%, sodium sulphate 1.5%, gluconic acid
Sodium 1.5% and water 33%.
The two of the mesh of the present invention, it is to provide the preparation method of above-mentioned high-effective concrete pumping admixture.The preparation method of the present invention
Simply, wide market, it is adapted to large-scale production.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of preparation method of high-effective concrete pumping admixture,
Comprise the following steps：
(1) based on the percentage composition of raw material gross weight, the following raw material is weighed：Prodan 25-35%, sodium lignin sulfonate
12-20%, polycarboxylate water-reducer 6-10%, lauryl sodium sulfate 3-5%, methylcellulose 4-8%, sodium sulphate 1-2%, Portugal
Grape sodium saccharate 1-2% and water 28-38%；
(2) first add water in mixer, then by prodan, sodium lignin sulfonate, polycarboxylate water-reducer, dodecyl
Sodium sulphate, methylcellulose, sodium sulphate, sodium gluconate, which are sequentially added in mixer, to be stirred, dissolves 8-10 hours, is produced
The high-effective concrete pumping admixture.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, in step (1), the percentage composition meter of raw material gross weight, it is made up of following each raw material：Prodan
30%th, sodium lignin sulfonate 16%, polycarboxylate water-reducer 8%, lauryl sodium sulfate 4%, methylcellulose 6%, sodium sulphate
1.5%th, sodium gluconate 1.5% and water 33%.
The beneficial effects of the invention are as follows：
(1) pumping admixture of the invention, can improve the impervious, freeze proof of concrete, durability, can reduce concrete slump damage
Lose, water reducing ability is good, floride-free low alkali, reinforcing bar non-corroding is acted on, is not in alkali-aggregate reaction, is suitable for the transport of long range
And pumping construction, it is applied widely.
(2) pumping admixture of the invention, can be widely used for commerical ready-mixed concrete, pump concrete, skyscraper, railway, highway
Bridge, tunnel, underground engineering, hydraulic and electric engineering engineering, mass concrete, high-strength concrete and prestressed reinforced concrete work
Journey.The various technical indicators of the pumping admixture of the present invention are more than the standard of " pumping admixture " in GB8076-2008.
(3) preparation method of the invention is simple, wide market, is adapted to large-scale production.
Embodiment
The principle and feature of the present invention are described below in conjunction with specific embodiment, example is served only for explaining this hair
It is bright, it is not intended to limit the scope of the present invention.
Embodiment 1：
The high-effective concrete pumping admixture of the present embodiment, based on the percentage composition of raw material gross weight, it is made up of following each raw material：
Prodan 25%, sodium lignin sulfonate 20%, polycarboxylate water-reducer 10%, lauryl sodium sulfate 5%, methylcellulose
8%th, sodium sulphate 2%, sodium gluconate 2% and water 28%.
The preparation method of above-mentioned high-effective concrete pumping admixture, comprises the following steps：
(1) based on the percentage composition of raw material gross weight, the following raw material is weighed：Prodan 25%, sodium lignin sulfonate
20%th, polycarboxylate water-reducer 10%, lauryl sodium sulfate 5%, methylcellulose 8%, sodium sulphate 2%, sodium gluconate 2%
With water 28%；
(2) first add water in mixer, then by prodan, sodium lignin sulfonate, polycarboxylate water-reducer, dodecyl
Sodium sulphate, methylcellulose, sodium sulphate, sodium gluconate, which are sequentially added in mixer, to be stirred, dissolves 8 hours, produces institute
State high-effective concrete pumping admixture.
Embodiment 2：
The high-effective concrete pumping admixture of the present embodiment, based on the percentage composition of raw material gross weight, it is made up of following each raw material：
Prodan 30%, sodium lignin sulfonate 16%, polycarboxylate water-reducer 8%, lauryl sodium sulfate 4%, methylcellulose
6%th, sodium sulphate 1.5%, sodium gluconate 1.5% and water 33%.
The preparation method of above-mentioned high-effective concrete pumping admixture, comprises the following steps：
(1) based on the percentage composition of raw material gross weight, the following raw material is weighed：Prodan 30%, sodium lignin sulfonate
16%th, polycarboxylate water-reducer 8%, lauryl sodium sulfate 4%, methylcellulose 6%, sodium sulphate 1.5%, sodium gluconate
1.5% and water 33%；
(2) first add water in mixer, then will be to hydroxyl N, N- dimethyl cyclohexyl amines, modified naphthalenesulfonateformaldehyde formaldehyde condensation
Thing, nano silicon, lauryl sodium sulfate, methylcellulose, sodium sulphate, sodium gluconate sequentially add in mixer
Row stirring, dissolving 9 hours, produce the high-effective concrete pumping admixture.
Embodiment 3：
The high-effective concrete pumping admixture of the present embodiment, based on the percentage composition of raw material gross weight, it is made up of following each raw material：
Prodan 35%, sodium lignin sulfonate 12%, polycarboxylate water-reducer 6%, lauryl sodium sulfate 3%, methylcellulose
4%th, sodium sulphate 1%, sodium gluconate 1% and water 38%.
The preparation method of above-mentioned high-effective concrete pumping admixture, comprises the following steps：
(1) based on the percentage composition of raw material gross weight, the following raw material is weighed：Prodan 35%, sodium lignin sulfonate
12%th, polycarboxylate water-reducer 6%, lauryl sodium sulfate 3%, methylcellulose 4%, sodium sulphate 1%, sodium gluconate 1%
With water 38%；
(2) first add water in mixer, then will be to hydroxyl N, N- dimethyl cyclohexyl amines, modified naphthalenesulfonateformaldehyde formaldehyde condensation
Thing, nano silicon, lauryl sodium sulfate, methylcellulose, sodium sulphate, sodium gluconate sequentially add in mixer
Row stirring, dissolving 10 hours, produce the high-effective concrete pumping admixture.
The volume of pumping admixture is the 15-20% of gel rubber material dosage obtained by embodiment 1-3, and water-reducing rate can reach 22-26%.
This product is mixed, concrete slump can be made to increase more than 10cm, under conditions of concrete cement and with collapsing, concrete is 3 days strong
Degree can reach the 68-72% of design strength, and 7 days intensity does not less mix person up to 100%, 28 day intensity and improves 35-45%.
The performance indications of high-effective concrete pumping admixture obtained by the present embodiment 1-3, as shown in table 1.
The performance indications of high-effective concrete pumping admixture obtained by the embodiment 1-3 of table 1
As can be seen here, pumping admixture of the invention, the impervious, freeze proof of concrete, durability can be improved, concrete can be reduced and collapsed
Degree of falling loses, and water reducing ability is good, floride-free low alkali, reinforcing bar non-corroding is acted on, is not in alkali-aggregate reaction, is suitable for over long distances
Transport and pumping construction, it is applied widely, and the present invention pumping admixture various technical indicators more than in GB8076-2008
The standard of " pumping admixture ".
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (4)
1. a kind of high-effective concrete pumping admixture, it is characterised in that based on the percentage composition of raw material gross weight, by following each raw material group
Into：Prodan 25-35%, sodium lignin sulfonate 12-20%, polycarboxylate water-reducer 6-10%, lauryl sodium sulfate 3-
5%th, methylcellulose 4-8%, sodium sulphate 1-2%, sodium gluconate 1-2% and water 28-38%.
A kind of 2. high-effective concrete pumping admixture according to claim 1, it is characterised in that the percentage composition of raw material gross weight
Meter, it is made up of following each raw material：Prodan 30%, sodium lignin sulfonate 16%, polycarboxylate water-reducer 8%, dodecyl sulphur
Sour sodium 4%, methylcellulose 6%, sodium sulphate 1.5%, sodium gluconate 1.5% and water 33%.
3. a kind of preparation method of high-effective concrete pumping admixture, it is characterised in that comprise the following steps：
(1) based on the percentage composition of raw material gross weight, the following raw material is weighed：Prodan 25-35%, sodium lignin sulfonate 12-
20%th, polycarboxylate water-reducer 6-10%, lauryl sodium sulfate 3-5%, methylcellulose 4-8%, sodium sulphate 1-2%, grape
Sodium saccharate 1-2% and water 28-38%；
(2) first add water in mixer, then by prodan, sodium lignin sulfonate, polycarboxylate water-reducer, dodecyl sulphate
Sodium, methylcellulose, sodium sulphate, sodium gluconate, which are sequentially added in mixer, to be stirred, dissolves 8-10 hours, is produced described
High-effective concrete pumping admixture.
A kind of 4. preparation method of high-effective concrete pumping admixture according to claim 3, it is characterised in that in step (1),
The percentage composition meter of raw material gross weight, it is made up of following each raw material：Prodan 30%, sodium lignin sulfonate 16%, polycarboxylic acids
Water reducer 8%, lauryl sodium sulfate 4%, methylcellulose 6%, sodium sulphate 1.5%, sodium gluconate 1.5% and water
33%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108395139A (en) * | 2018-04-10 | 2018-08-14 | 湖南铭煌科技发展有限公司 | A kind of preparation method of adjustment polycarboxylic admixture charging sequence |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1559964A (en) * | 2004-02-26 | 2005-01-05 | 同济大学 | High performance concrete pumping agent controlling falling degree loss type |
| 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 |
| CN106007461A (en) * | 2016-05-30 | 2016-10-12 | 江苏名和集团有限公司 | High performance concrete pumping aid |
-
2017
- 2017-08-23 CN CN201710729174.5A patent/CN107586058A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1559964A (en) * | 2004-02-26 | 2005-01-05 | 同济大学 | High performance concrete pumping agent controlling falling degree loss type |
| 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 |
| CN106007461A (en) * | 2016-05-30 | 2016-10-12 | 江苏名和集团有限公司 | High performance concrete pumping aid |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108395139A (en) * | 2018-04-10 | 2018-08-14 | 湖南铭煌科技发展有限公司 | A kind of preparation method of adjustment polycarboxylic admixture charging sequence |
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