CN107445508A - A kind of high performance concrete pumping admixture and preparation method thereof - Google Patents
A kind of high performance concrete pumping admixture and preparation method thereof Download PDFInfo
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- CN107445508A CN107445508A CN201710728941.0A CN201710728941A CN107445508A CN 107445508 A CN107445508 A CN 107445508A CN 201710728941 A CN201710728941 A CN 201710728941A CN 107445508 A CN107445508 A CN 107445508A
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- sodium
- raw material
- high performance
- pumping admixture
- performance concrete
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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 discloses a kind of high performance concrete pumping admixture and preparation method thereof, belong to building material manufacture field.The high performance concrete pumping admixture is made up of based on the percentage composition of raw material gross weight following each raw material：HPMC 15 30%, sodium lignin sulfonate 10 20%, hydroxypropyl starch ether 4 8%, lauryl sodium sulfate 4 6%, sodium gluconate 4 8%, sulfur trioxide 1 2%, diethanol amine 1 2% and water 39 46%.The invention also discloses the preparation method of above-mentioned high performance 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 performance 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 performance 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 performance concrete pumping admixture.The pumping admixture of the present invention, can improve coagulation
Impervious, the freeze proof, durability of soil, can reduce concrete slump loss, and water reducing ability is good, floride-free low alkali, to reinforcing bar non-corroding
Effect, is not in alkali-aggregate reaction, is suitable for transport and the pumping construction of long range, applied widely.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of high performance concrete pumping admixture, it is total by raw material
The percentage composition meter of weight, it is made up of following each raw material：HPMC 15-30%, sodium lignin sulfonate 10-20%,
Hydroxypropyl starch ether 4-8%, lauryl sodium sulfate 4-6%, sodium gluconate 4-8%, sulfur trioxide 1-2%, diethanol amine
1-2% and water 39-46%.
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 performance 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：HPMC 22%, wood
Quality sodium sulfonate 15%, hydroxypropyl starch ether 6%, lauryl sodium sulfate 5%, sodium gluconate 6%, sulfur trioxide 1.5%,
Diethanol amine 1.5% and water 43%.
The two of the mesh of the present invention, it is to provide the preparation method of above-mentioned high performance concrete pumping admixture.The preparation side of the present invention
Method is simple, wide market, 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 side of high performance concrete pumping admixture
Method, comprise the following steps：
(1) based on the percentage composition of raw material gross weight, the following raw material is weighed：HPMC 15-30%, lignin
Sodium sulfonate 10-20%, hydroxypropyl starch ether 4-8%, lauryl sodium sulfate 4-6%, sodium gluconate 4-8%, sulfur trioxide
1-2%, diethanol amine 1-2% and water 39-46%；
(2) first add water in mixer, then by HPMC, sodium lignin sulfonate, hydroxypropyl starch ether, ten
Sodium dialkyl sulfate, sodium gluconate, sulfur trioxide, diethanol amine sequentially add in mixer be stirred, to dissolve 8-10 small
When, produce the high performance 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：Hydroxypropyl methylcellulose
Element 22%, sodium lignin sulfonate 15%, hydroxypropyl starch ether 6%, lauryl sodium sulfate 5%, sodium gluconate 6%, three oxygen
Change sulphur 1.5%, diethanol amine 1.5% and water 43%.
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 performance concrete pumping admixture of the present embodiment, based on the percentage composition of raw material gross weight, by following each raw material group
Into：HPMC 15%, sodium lignin sulfonate 20%, hydroxypropyl starch ether 8%, lauryl sodium sulfate 6%, grape
Sodium saccharate 8%, sulfur trioxide 2%, diethanol amine 2% and water 39%.
The preparation method of above-mentioned high performance concrete pumping admixture, comprises the following steps：
(1) based on the percentage composition of raw material gross weight, the following raw material is weighed：HPMC 15%, sulfomethylated lignin
Sour sodium 20%, hydroxypropyl starch ether 8%, lauryl sodium sulfate 6%, sodium gluconate 8%, sulfur trioxide 2%, diethanol amine
2% and water 39%；
(2) first add water in mixer, then by HPMC, sodium lignin sulfonate, hydroxypropyl starch ether, ten
Sodium dialkyl sulfate, sodium gluconate, sulfur trioxide, diethanol amine, which are sequentially added in mixer, to be stirred, dissolves 8 hours,
Produce the high performance concrete pumping admixture.
Embodiment 2：
The high performance concrete pumping admixture of the present embodiment, based on the percentage composition of raw material gross weight, by following each raw material group
Into：HPMC 22%, sodium lignin sulfonate 15%, hydroxypropyl starch ether 6%, lauryl sodium sulfate 5%, grape
Sodium saccharate 6%, sulfur trioxide 1.5%, diethanol amine 1.5% and water 43%.
The preparation method of above-mentioned high performance concrete pumping admixture, comprises the following steps：
(1) based on the percentage composition of raw material gross weight, the following raw material is weighed：HPMC 22%, sulfomethylated lignin
Sour sodium 15%, hydroxypropyl starch ether 6%, lauryl sodium sulfate 5%, sodium gluconate 6%, sulfur trioxide 1.5%, diethanol
Amine 1.5% and water 43%；
(2) first add water in mixer, then by HPMC, sodium lignin sulfonate, hydroxypropyl starch ether, ten
Sodium dialkyl sulfate, sodium gluconate, sulfur trioxide, diethanol amine, which are sequentially added in mixer, to be stirred, dissolves 9 hours,
Produce the high performance concrete pumping admixture.
Embodiment 3：
The high performance concrete pumping admixture of the present embodiment, based on the percentage composition of raw material gross weight, by following each raw material group
Into：HPMC 30%, sodium lignin sulfonate 10%, hydroxypropyl starch ether 4%, lauryl sodium sulfate 4%, grape
Sodium saccharate 4%, sulfur trioxide 1%, diethanol amine 1% and water 46%.
The preparation method of above-mentioned high performance concrete pumping admixture, comprises the following steps：
(1) based on the percentage composition of raw material gross weight, the following raw material is weighed：HPMC 30%, sulfomethylated lignin
Sour sodium 10%, hydroxypropyl starch ether 4%, lauryl sodium sulfate 4%, sodium gluconate 4%, sulfur trioxide 1%, diethanol amine
1% and water 46%；
(2) first add water in mixer, then by HPMC, sodium lignin sulfonate, hydroxypropyl starch ether, ten
Sodium dialkyl sulfate, sodium gluconate, sulfur trioxide, diethanol amine, which are sequentially added in mixer, to be stirred, dissolves 10 hours,
Produce the high performance 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 70-75% of design strength, and 7 days intensity does not less mix person up to 100%, 28 day intensity and improves 30-40%.
The performance indications of high performance concrete pumping admixture obtained by the present embodiment 1-3, as shown in table 1.
The performance indications of high performance 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 performance concrete pumping admixture, it is characterised in that based on the percentage composition of raw material gross weight, by following each raw material
Composition：HPMC 15-30%, sodium lignin sulfonate 10-20%, hydroxypropyl starch ether 4-8%, dodecyl sulphate
Sodium 4-6%, sodium gluconate 4-8%, sulfur trioxide 1-2%, diethanol amine 1-2% and water 39-46%.
2. a kind of high performance concrete pumping admixture according to claim 1, it is characterised in that the percentage of raw material gross weight contains
Gauge, it is made up of following each raw material：HPMC 22%, sodium lignin sulfonate 15%, hydroxypropyl starch ether 6%, ten
Sodium dialkyl sulfate 5%, sodium gluconate 6%, sulfur trioxide 1.5%, diethanol amine 1.5% and water 43%.
3. a kind of preparation method of high performance 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：HPMC 15-30%, lignin sulfonic acid
Sodium 10-20%, hydroxypropyl starch ether 4-8%, lauryl sodium sulfate 4-6%, sodium gluconate 4-8%, sulfur trioxide 1-
2%th, diethanol amine 1-2% and water 39-46%；
(2) first add water in mixer, then by HPMC, sodium lignin sulfonate, hydroxypropyl starch ether, dodecane
Base sodium sulphate, sodium gluconate, sulfur trioxide, diethanol amine, which are sequentially added in mixer, to be stirred, dissolves 8-10 hours, i.e.,
Obtain the high performance concrete pumping admixture.
A kind of 4. preparation method of high performance concrete pumping admixture according to claim 3, it is characterised in that step (1)
In, the percentage composition meter of raw material gross weight, it is made up of following each raw material：HPMC 22%, sodium lignin sulfonate
15%th, hydroxypropyl starch ether 6%, lauryl sodium sulfate 5%, sodium gluconate 6%, sulfur trioxide 1.5%, diethanol amine
1.5% and water 43%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710728941.0A CN107445508A (en) | 2017-08-23 | 2017-08-23 | A kind of high performance concrete pumping admixture and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710728941.0A CN107445508A (en) | 2017-08-23 | 2017-08-23 | A kind of high performance concrete pumping admixture and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN106348642A (en) * | 2016-11-30 | 2017-01-25 | 张松波 | Low-slump-loss concrete pumping agent |
-
2017
- 2017-08-23 CN CN201710728941.0A patent/CN107445508A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN106348642A (en) * | 2016-11-30 | 2017-01-25 | 张松波 | Low-slump-loss concrete pumping agent |
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Application publication date: 20171208 |