CN107804992A - A kind of concrete pump-feed agent and preparation method thereof - Google Patents
A kind of concrete pump-feed agent and preparation method thereof Download PDFInfo
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- CN107804992A CN107804992A CN201710982705.1A CN201710982705A CN107804992A CN 107804992 A CN107804992 A CN 107804992A CN 201710982705 A CN201710982705 A CN 201710982705A CN 107804992 A CN107804992 A CN 107804992A
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- parts
- water
- concrete pump
- reducer
- feed agent
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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
Abstract
The invention discloses a kind of concrete pump-feed agent and preparation method thereof, belong to building material manufacture field.The concrete pump-feed agent is made up of the raw material of following parts by weight：10 20 parts of 20 30 parts of hydroxyethylmethylcellulose, 5 15 parts of polycarboxylate water-reducer, 48 parts of sodium gluconate, 39 parts of tetraethyl orthosilicate, 4 10 parts of hexose dicalcium, 24 parts of perfluoro capryl triethoxysilane, 13 parts of polyvinyl alcohol and water.The invention also discloses the preparation method of above-mentioned concrete pump-feed agent.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 concrete pump-feed agent 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 concrete pump-feed agent 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 concrete pump-feed agent.The pumping admixture of the present invention, the anti-of concrete can be improved
Ooze, be freeze proof, durability, concrete slump loss can be reduced, water reducing ability is good, floride-free low alkali, reinforcing bar non-corroding is acted on, no
Alkali-aggregate reaction occurs, is 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 concrete pump-feed agent, by following parts by weight
Raw material composition：Hydroxyethylmethylcellulose 20-30 parts, polycarboxylate water-reducer 5-15 parts, sodium gluconate 4-8 parts, positive silicic acid
Tetra-ethyl ester 3-9 parts, hexose dicalcium 4-10 parts, perfluoro capryl triethoxysilane 2-4 parts, polyvinyl alcohol 1-3 parts and water 10-20
Part.
The pumping admixture of the present invention, can be widely used for commerical ready-mixed concrete, pump concrete, skyscraper, railway, highway bridge
Beam, tunnel, underground engineering, hydraulic and electric engineering engineering, mass concrete, high-strength concrete and deformed bar concrete project.This hair
The various technical indicators of bright pumping admixture are more than the standard of " pumping admixture " in GB8076-2008.
The concrete pump-feed agent of the present invention is brown liquid, and density is 1.20 ± 0.02g/mL, solid aqueous rate≤10%,
PH value is 7-9, and 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, it is made up of the raw material of following parts by weight：25 parts of hydroxyethylmethylcellulose, polycarboxylate water-reducer 10
Part, 6 parts of sodium gluconate, 6 parts of tetraethyl orthosilicate, 7 parts of hexose dicalcium, 3 parts of perfluoro capryl triethoxysilane, polyethylene
15 parts of 2 parts of alcohol and water.
Further, the polycarboxylate water-reducer is made up of the raw material of following parts by weight：Allyl ether 20-40 parts, propylene
Sour 5-15 parts, ammonium persulfate 2-4 parts and mercapto acid 2-4 parts.
The two of the mesh of the present invention, it is to provide the preparation method of above-mentioned concrete pump-feed agent.The preparation method of the present invention is simple,
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 concrete pump-feed agent, including
Following steps：
(1) raw material of following parts by weight is weighed：Hydroxyethylmethylcellulose 20-30 parts, polycarboxylate water-reducer 5-15 parts,
Sodium gluconate 4-8 parts, tetraethyl orthosilicate 3-9 parts, hexose dicalcium 4-10 parts, perfluoro capryl triethoxysilane 2-4 parts,
Polyvinyl alcohol 1-3 parts and water 10-20 parts；
(2) first add water in mixer, then by hydroxyethylmethylcellulose, polycarboxylate water-reducer, sodium gluconate, just
Tetraethyl orthosilicate, hexose dicalcium, perfluoro capryl triethoxysilane, polyvinyl alcohol sequentially add in mixer be stirred,
6-8 hours are dissolved, produce the concrete pump-feed agent.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, in step (1), the parts by weight of the raw material are：25 parts of hydroxyethylmethylcellulose, polycarboxylic acids diminishing
It is 10 parts of agent, 6 parts of sodium gluconate, 6 parts of tetraethyl orthosilicate, 7 parts of hexose dicalcium, 3 parts of perfluoro capryl triethoxysilane, poly-
15 parts of 2 parts of vinyl alcohol and water.
Further, the polycarboxylate water-reducer is made up of the raw material of following parts by weight：Allyl ether 20-40 parts, propylene
Sour 5-15 parts, ammonium persulfate 2-4 parts and mercapto acid 2-4 parts.
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 concrete pump-feed agent of the present embodiment, it is made up of the raw material of following weight：Hydroxyethylmethylcellulose 20kg, poly- carboxylic
Sour water reducer 15kg, sodium gluconate 4kg, tetraethyl orthosilicate 9kg, hexose dicalcium 4kg, perfluoro capryl triethoxysilane
4kg, polyvinyl alcohol 1kg and water 20kg, wherein, the polycarboxylate water-reducer is made up of the raw material of following weight：Allyl ether
20kg, acrylic acid 15kg, ammonium persulfate 2kg and mercapto acid 4kg.
The preparation method of above-mentioned concrete pump-feed agent, comprises the following steps：
(1) raw material of following weight is weighed：Hydroxyethylmethylcellulose 20kg, polycarboxylate water-reducer 15kg, gluconic acid
Sodium 4kg, tetraethyl orthosilicate 9kg, hexose dicalcium 4kg, perfluoro capryl triethoxysilane 4kg, polyvinyl alcohol 1kg and water
20kg；
(2) first add water in mixer, then by hydroxyethylmethylcellulose, polycarboxylate water-reducer, sodium gluconate, just
Tetraethyl orthosilicate, hexose dicalcium, perfluoro capryl triethoxysilane, polyvinyl alcohol sequentially add in mixer be stirred,
Dissolving 6 hours, produces the concrete pump-feed agent.
Embodiment 2：
The concrete pump-feed agent of the present embodiment, it is made up of the raw material of following weight：Hydroxyethylmethylcellulose 25kg, poly- carboxylic
Sour water reducer 10kg, sodium gluconate 6kg, tetraethyl orthosilicate 6kg, hexose dicalcium 7kg, perfluoro capryl triethoxysilane
3kg, polyvinyl alcohol 2kg and water 15kg, wherein, the polycarboxylate water-reducer is made up of the raw material of following weight：Allyl ether
30kg, acrylic acid 10kg, ammonium persulfate 3kg and mercapto acid 3kg.
The preparation method of above-mentioned concrete pump-feed agent, comprises the following steps：
(1) raw material of following weight is weighed：Hydroxyethylmethylcellulose 25kg, polycarboxylate water-reducer 10kg, gluconic acid
Sodium 6kg, tetraethyl orthosilicate 6kg, hexose dicalcium 7kg, perfluoro capryl triethoxysilane 3kg, polyvinyl alcohol 2kg and water
15kg；
(2) first add water in mixer, then by hydroxyethylmethylcellulose, polycarboxylate water-reducer, sodium gluconate, just
Tetraethyl orthosilicate, hexose dicalcium, perfluoro capryl triethoxysilane, polyvinyl alcohol sequentially add in mixer be stirred,
Dissolving 7 hours, produces the concrete pump-feed agent.
Embodiment 3：
The concrete pump-feed agent of the present embodiment, it is made up of the raw material of following weight：Hydroxyethylmethylcellulose 20kg, poly- carboxylic
Sour water reducer 15kg, sodium gluconate 4kg, tetraethyl orthosilicate 9kg, hexose dicalcium 4kg, perfluoro capryl triethoxysilane
4kg, polyvinyl alcohol 1kg and water 20kg, wherein, the polycarboxylate water-reducer is made up of the raw material of following weight：Allyl ether
40kg, acrylic acid 5kg, ammonium persulfate 4kg and mercapto acid 2kg.
The preparation method of above-mentioned concrete pump-feed agent, comprises the following steps：
(1) raw material of following weight is weighed：Hydroxyethylmethylcellulose 20kg, polycarboxylate water-reducer 15kg, gluconic acid
Sodium 4kg, tetraethyl orthosilicate 9kg, hexose dicalcium 4kg, perfluoro capryl triethoxysilane 4kg, polyvinyl alcohol 1kg and water
20kg；
(2) first add water in mixer, then by hydroxyethylmethylcellulose, polycarboxylate water-reducer, sodium gluconate, just
Tetraethyl orthosilicate, hexose dicalcium, perfluoro capryl triethoxysilane, polyvinyl alcohol sequentially add in mixer be stirred,
Dissolving 8 hours, produces the concrete pump-feed agent.
The volume of pumping admixture is the 15-25% of gel rubber material dosage obtained by embodiment 1-3, and water-reducing rate can reach 25-28%.
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 65-80% 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 concrete pump-feed agent obtained by the present embodiment 1-3, as shown in table 1.
The performance indications of concrete pump-feed agent 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 (6)
1. a kind of concrete pump-feed agent, it is characterised in that be made up of the raw material of following parts by weight：Hydroxyethylmethylcellulose
20-30 parts, polycarboxylate water-reducer 5-15 parts, sodium gluconate 4-8 parts, tetraethyl orthosilicate 3-9 parts, hexose dicalcium 4-10
Part, perfluoro capryl triethoxysilane 2-4 parts, polyvinyl alcohol 1-3 parts and water 10-20 parts.
2. a kind of concrete pump-feed agent according to claim 1, it is characterised in that by the raw material group of following parts by weight
Into：25 parts of hydroxyethylmethylcellulose, 10 parts of polycarboxylate water-reducer, 6 parts of sodium gluconate, 6 parts of tetraethyl orthosilicate, hexose
15 parts of 7 parts of dicalcium, 3 parts of perfluoro capryl triethoxysilane, 2 parts of polyvinyl alcohol and water.
3. a kind of concrete pump-feed agent according to claim 1 or 2, it is characterised in that the polycarboxylate water-reducer is by such as
The raw material composition of lower parts by weight：Allyl ether 20-40 parts, acrylic acid 5-15 parts, ammonium persulfate 2-4 parts and mercapto acid 2-4 parts.
4. a kind of preparation method of concrete pump-feed agent, it is characterised in that comprise the following steps：
(1) raw material of following parts by weight is weighed：Hydroxyethylmethylcellulose 20-30 parts, polycarboxylate water-reducer 5-15 parts, grape
Sodium saccharate 4-8 parts, tetraethyl orthosilicate 3-9 parts, hexose dicalcium 4-10 parts, perfluoro capryl triethoxysilane 2-4 parts, poly- second
Enol 1-3 parts and water 10-20 parts；
(2) first add water in mixer, then by hydroxyethylmethylcellulose, polycarboxylate water-reducer, sodium gluconate, positive silicic acid
Tetra-ethyl ester, hexose dicalcium, perfluoro capryl triethoxysilane, polyvinyl alcohol, which are sequentially added in mixer, to be stirred, dissolves
6-8 hours, produce the concrete pump-feed agent.
5. the preparation method of a kind of concrete pump-feed agent according to claim 4, it is characterised in that described in step (1)
The parts by weight of raw material are：25 parts of hydroxyethylmethylcellulose, 10 parts of polycarboxylate water-reducer, 6 parts of sodium gluconate, positive silicic acid four
15 parts of 6 parts of ethyl ester, 7 parts of hexose dicalcium, 3 parts of perfluoro capryl triethoxysilane, 2 parts of polyvinyl alcohol and water.
A kind of 6. preparation method of concrete pump-feed agent according to claim 4 or 5, it is characterised in that the polycarboxylic acids
Water reducer is made up of the raw material of following parts by weight：Allyl ether 20-40 parts, acrylic acid 5-15 parts, ammonium persulfate 2-4 parts and mercapto
Sour 2-4 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710982705.1A CN107804992A (en) | 2017-10-20 | 2017-10-20 | A kind of concrete pump-feed agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710982705.1A CN107804992A (en) | 2017-10-20 | 2017-10-20 | A kind of concrete pump-feed agent and preparation method thereof |
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| Publication Number | Publication Date |
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| CN107804992A true CN107804992A (en) | 2018-03-16 |
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| CN201710982705.1A Pending CN107804992A (en) | 2017-10-20 | 2017-10-20 | A kind of concrete pump-feed agent and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108863156A (en) * | 2018-08-09 | 2018-11-23 | 马永胜 | A kind of concrete pump-feed agent |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104098286A (en) * | 2014-07-28 | 2014-10-15 | 中国建筑股份有限公司 | Special concrete pumping agent for ultra-high buildings and preparation method thereof |
| CN104402297A (en) * | 2014-11-04 | 2015-03-11 | 张桂华 | Concrete pumping agent |
| CN104986986A (en) * | 2015-06-29 | 2015-10-21 | 青岛祥嘉知识产权服务有限公司 | Improved concrete pumping 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
- 2017-10-20 CN CN201710982705.1A patent/CN107804992A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104098286A (en) * | 2014-07-28 | 2014-10-15 | 中国建筑股份有限公司 | Special concrete pumping agent for ultra-high buildings and preparation method thereof |
| CN104402297A (en) * | 2014-11-04 | 2015-03-11 | 张桂华 | Concrete pumping agent |
| CN104986986A (en) * | 2015-06-29 | 2015-10-21 | 青岛祥嘉知识产权服务有限公司 | Improved concrete pumping 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 |
|---|---|---|---|---|
| CN108863156A (en) * | 2018-08-09 | 2018-11-23 | 马永胜 | A kind of concrete pump-feed agent |
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Application publication date: 20180316 |
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