CN108585592A - A kind of Concrete synergist and preparation method thereof - Google Patents
A kind of Concrete synergist and preparation method thereof Download PDFInfo
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- CN108585592A CN108585592A CN201810798649.0A CN201810798649A CN108585592A CN 108585592 A CN108585592 A CN 108585592A CN 201810798649 A CN201810798649 A CN 201810798649A CN 108585592 A CN108585592 A CN 108585592A
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- triisopropanolamine
- calgon
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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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- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
It is by polyacrylamide this application provides a kind of Concrete synergist and preparation method thereof；Sodium sulfite；Polyalcohol；Triisopropanolamine and calcium formate；Diethylenetriamine pentacarboxylic acid sodium；Calgon；Remaining is formed for water.The Concrete synergist of the present invention promotes hydrated cementitious speed, keeps hydrated cementitious more abundant by the dispersion degree of efficient excited cement particle.The phenomenon that cement component is filled with powder is reduced, the dosage of cement component can be effectively reduced while ensureing that the comprehensive performance of concrete is constant, Cost of Concrete is made to substantially reduce；And each component in Concrete synergist cooperates through the invention, can not only improve the early anaphase intensity of concrete, can also substantially improve the whole synthesis performance of concrete.Production process is simple, pollution-free discharge, environmental protection.
Description
Technical field
The invention belongs to technical field of concrete additives, and in particular to a kind of Concrete synergist and preparation method thereof.
Background technology
Concrete refers to by cementitious material by the general designation of the cementing integral engineered composite material of aggregate.The coagulation usually said
A native word refers to making cementitious material, sand, masonry aggregate with cement；Match by a certain percentage with water (additive and admixture can be contained)
Close, it is agitated obtained by cement concrete, also referred to as normal concrete, it is widely used in civil engineering.Concrete is as building
Material is widely used, and up to the present there are no the applications that the material for foresight occur can substitute concrete.
Produce the cost highest of cement in each component of concrete.Cement, that is, powdery hydraulicity inorganic coagulation material.Add water
At slurry after stirring, can harden in air or in water preferably hardening, and can the materials such as sand, stone securely it is cementing
Together.The mixture of early stage lime and volcanic ash and modern lime pozzolanic cement are much like, made of its cementing rubble
Concrete, not only intensity is higher after hardening, and can also resist the erosion of fresh water or brackish water.For a long time, it is as a kind of
Important cementitious material is widely used in the engineerings such as civil construction, water conservancy, national defence.It is required according to strength grade of concrete, mixed
Part of cement can also be replaced as cementitious material with other activity or nonactive powdered substance in solidifying soil, such as miberal powder or fine coal
Ash etc..Ordinary circumstance in every side's concrete cement consumption between 150-500 kilograms, it is seen that the dosage of cement is still very big
, the shared cost ratio highest in concrete.But since the degree of hydration of cement is unable to reach 100%, so mixed
Some cement is intended only as powder filler material in solidifying soil, and booster action is not had to concrete.And Concrete synergist
Addition, can make the cement granules for not carrying out hydration reaction fully fully react or accelerate the aquation of coarse granule cement, so as to
To realize cement consumption is reduced while ensureing the groundwork performance and intensity requirement of concrete.Although current cement synergy
The use of agent is not much, but it can produce identical quality concrete time province cement consumption, reduce concrete production cost, together
When, indirectly because less with cement to the discharge for reducing the nitrogen oxides in manufacture of cement and energy-efficient effect, coagulation
Native synergist will gradually will be used in the preparation of concrete in large quantities by more and more concrete production unit recipients.
This is consistent with building a resource-conserving and environment-friendly society.
Invention content
In order to overcome the shortcomings of described in background technology, the present invention provides a kind of Concrete synergist and preparation method thereof,
The synergist can effectively improve concrete crushing strength, improve workability of concrete, effectively reduce the dosage of cement, reduce
The production cost of concrete.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of Concrete synergist, in parts by weight, the cement grinding aid are grouped as by following group：A kind of high property
Energy Concrete synergist, is made of the raw material of following mass percent：
Polyacrylamide 7%-12%；
Sodium sulfite 4%-18%；
Polyalcohol 5%-7%；
Triisopropanolamine and calcium formate 10%-15%；
Diethylenetriamine pentacarboxylic acid sodium 3%-5%；
Calgon 2%-4%；
Surplus is water.
Further, polyalcohol is one or more in ethylene glycol, propylene glycol, three isopropanol of diethanol.
Further, triisopropanolamine：Calcium formate is 3:2.
Further, polyacrylamide 9%-10%；Sodium sulfite 8%-12%；Three isopropanol of ethylene glycol or diethanol
5%-7%；Triisopropanolamine 6-9%；Calcium formate 4%-6%；Diethylenetriamine pentacarboxylic acid sodium 3%-5%；Calgon
2%-4%.
Further, polyacrylamide 9.5%；Sodium sulfite 10%；Three isopropanol 6% of ethylene glycol and diethanol；Three is different
Propanolamine 6%；Calcium formate 4%；Diethylenetriamine pentacarboxylic acid sodium 4%；Calgon 3%.
Further, polyacrylamide 9.5%；Sodium sulfite 10%；Ethylene glycol 4%；Three isopropanol 2% of diethanol；Three
Isopropanolamine 6%；Calcium formate 4%；Diethylenetriamine pentacarboxylic acid sodium 4%；Calgon 3%.
The invention also discloses a kind of preparation methods of Concrete synergist, comprise the steps of：
1) each component is weighed by weight percentage：Polyacrylamide 7%-12%；Sodium sulfite 4%-18%；Polyalcohol
5%-7%；Triisopropanolamine and calcium formate 10%-15%；Diethylenetriamine pentacarboxylic acid sodium 3%-5%；Calgon 2%-
4%；Surplus is water.
2) polyalcohol and triisopropanolamine and calcium formate are mixed evenly, obtain initial mixing liquid；
3) initial mixing liquid and calgon are mixed, stirs evenly, obtains intermediate mixed solution；
4) diethylenetriamine pentacarboxylic acid sodium, polyacrylamide and sodium sulfite are added in intermediate mixed solution, stirring is equal
It is even, you can high performance concrete synergist is made.
The technique effect of the present invention：
The Concrete synergist of the present invention is reduced cement component and is filled out with powder by the dispersion degree of efficient excited cement particle
The phenomenon that filling fully efficiently uses cement composition, while can accelerate hydrated cementitious speed, keeps hydrated cementitious more abundant.It is protecting
The dosage that cement component can be effectively reduced while the comprehensive performance of card concrete is constant or improves, keeps Cost of Concrete big
It is big to reduce；And cooperating between component in Concrete synergist through the invention, not only increase the morning of concrete
Later strength, and substantially improve the whole synthesis performance of concrete.Production process is simple, pollution-free discharge, environmental protection.
Specific implementation mode
For the present invention by a kind of Concrete synergist of offer and preparation method thereof, solution existing concrete cement consumption is more,
The higher problem of cost.
Technical solution general thought in the present invention is as follows：
A kind of Concrete synergist, in parts by weight, the cement grinding aid are grouped as by following group：A kind of high property
Energy Concrete synergist, is made of the raw material of following mass percent：
Polyacrylamide 7%-12%；
Sodium sulfite 4%-18%；
Polyalcohol 5%-7%；
Triisopropanolamine and calcium formate 10%-15%；
Diethylenetriamine pentacarboxylic acid sodium 3%-5%；
Calgon 2%-4%；
Surplus is water.
Further, polyalcohol is one or more in ethylene glycol, propylene glycol, three isopropanol of diethanol.
Further, triisopropanolamine：Calcium formate is 3:2.
Further, polyacrylamide 9%-10%；Sodium sulfite 8%-12%；Three isopropanol of ethylene glycol or diethanol
5%-7%；Triisopropanolamine 6-9%；Calcium formate 4%-6%；Diethylenetriamine pentacarboxylic acid sodium 3%-5%；Calgon
2%-4%.
Further, polyacrylamide 9.5%；Sodium sulfite 10%；Three isopropanol 6% of ethylene glycol and diethanol；Three is different
Propanolamine 6%；Calcium formate 4%；Diethylenetriamine pentacarboxylic acid sodium 4%；Calgon 3%.
Further, polyacrylamide 9.5%；Sodium sulfite 10%；Ethylene glycol 4%；Three isopropanol 2% of diethanol；Three
Isopropanolamine 6%；Calcium formate 4%；Diethylenetriamine pentacarboxylic acid sodium 4%；Calgon 3%.
During concrete formation, various raw material mixing and water addings are molded, a large amount of cement, cement conduct are used in raw material
Main powder binding material adds, and cement is combined with water occurs hydration reaction, in the hyrate bonded concrete of formation
Each component, and with the process of aquation, the intensity of concrete is higher and higher.But in hydration process, since part of cement is thin
Little particle, which is easily reunited, is easy for that moisture is hindered to enter, and hinders the aquation of internal cement granules, and in synergist in polyalcohol
Hydroxyl has oleophylic and hydrophilicity, can be good at the finished ground cement for breaing up reunion, keeps the cement granules that reunion is wrapped up organic
It can be contacted by the water.The wherein different polyalcohol of molecular size range, penetration is different, and cooperation is interactive, makes size cement group
Poly- particle is dispersed more efficiently, and the cement granules of effective aquation is made to increase, so as to realize that reducing cement consumption also can
Enough it is improved the intensity of concrete.In addition, cement consumption is reduced, you can accordingly to reduce the water consumption in concrete, increase
The compactness for adding concrete, further increases concrete strength.
Isopropanolamine substance can significantly improve the activity of cement, promote cement further hydration.Here preferably three isopropanols
Amine is mixed with calcium formate, and triisopropanolamine improves the activity of cement, and calcium formate introduces calcium ion, is increased concrete strength, is mutually assisted
Same-action greatly enhances the intensity of cement and improves further hydration depth.Control the ratio of triisopropanolamine and calcium formate, control
Hydration reaction is carried out towards positive direction, while ensureing that humidification maximizes.
Simultaneously diethylenetriamine pentacarboxylic acid sodium can effectively in excited cement nonactive mixing material activity, while can also
Excite the activity of admixture flyash and slag micropowder in concrete.The introducing of calcium formate undoubtedly increases the concentration of calcium ion,
But calgon can form complex compound with calcium ion, on the one hand reduce the concentration of calcium ion in hydrated product, accelerate water
Mud hydration reaction is carried out to positive direction, and on the other hand, the calcium phosphate complex compound three-dimensional structure of formation can improve hydrated cementitious
The compactness of structure, to improve the intensity of concrete.
Meanwhile after diethylenetriamine pentacarboxylic acid sodium, polyalcohol calcium formate meet water, a large amount of carboxyl and hydroxyl can be formed, by
In intermolecular force, these polar groups are adsorbed onto cement particle surface, and it is smooth, fine and close can to destroy non-active material surface
Si-O-Si keys and Si-O-Al keys and its network structure, so that crystal structure is generated defect, it accelerated to dissociate and aquation, so as to
The enough intensity for improving concrete to greatest extent.These three-dimensional macromolecular structures are adsorbed on material surface from each orientation, mutually hand over
Fork, increases the early anaphase intensity after concrete formation.
Sodium sulfite and the calcium ion of generation form the intensity of gypsum increasing concrete, and further promote aquation deep
Degree.
Early period due to adding polyalcohol, triisopropanolamine and calcium formate etc. there is the component of dispersion effect, concrete to exist
These dispersed components are preferentially combined abundant dissociation with water after water is added early period, by the thickening power of polyacrylamide, make coagulation
Native other components are fully contacted with the dispersed component of dissociation, accelerate concrete formation, and improve concrete strength after molding.
So each component generates association in respective performance individual effect in the Concrete synergist of the present invention
Same synergistic effect makes the efficiency of Concrete synergist reach optimum efficiency, can effectively improve the dispersion performance of concrete, make water
The abundant aquation of mud powder, reduces the dosage of cement, while improving the intensity of concrete.
Embodiment 1：
1) each component is weighed by weight percentage：Polyacrylamide 7KG；Sodium sulfite 4KG；Polyalcohol 5KG；Three isopropanols
Amine and calcium formate 10KG；Diethylenetriamine pentacarboxylic acid sodium 3KG；Calgon 2KG；Water 69KG.
2) polyalcohol and triisopropanolamine and calcium formate are mixed evenly, obtain initial mixing liquid；
3) initial mixing liquid and calgon are mixed, stirs evenly, obtains intermediate mixed solution；
4) diethylenetriamine pentacarboxylic acid sodium, polyacrylamide and sodium sulfite are added in intermediate mixed solution, stirring is equal
It is even, you can high performance concrete synergist is made.
Embodiment 2：
1) each component is weighed by weight percentage：Polyacrylamide 12KG；Sodium sulfite 18KG；Polyalcohol 7KG；Three isopropyls
Hydramine and calcium formate 15KG；Diethylenetriamine pentacarboxylic acid sodium 5KG；Calgon 4KG；Water 39KG.
2) polyalcohol and triisopropanolamine and calcium formate are mixed evenly, obtain initial mixing liquid；
3) initial mixing liquid and calgon are mixed, stirs evenly, obtains intermediate mixed solution；
4) diethylenetriamine pentacarboxylic acid sodium, polyacrylamide and sodium sulfite are added in intermediate mixed solution, stirring is equal
It is even, you can high performance concrete synergist is made.
Embodiment:3：
1) each component is weighed by weight percentage：Polyacrylamide 9KG；Sodium sulfite 8KG；Ethylene glycol 2KG, diethanol three
Isopropanol 3KG；Triisopropanolamine 6KG；Calcium formate 4KG；Diethylenetriamine pentacarboxylic acid sodium 3KG；Calgon 2KG；Water 63KG.
2) polyalcohol and triisopropanolamine and calcium formate are mixed evenly, obtain initial mixing liquid；
3) initial mixing liquid and calgon are mixed, stirs evenly, obtains intermediate mixed solution；
4) diethylenetriamine pentacarboxylic acid sodium, polyacrylamide and sodium sulfite are added in intermediate mixed solution, stirring is equal
It is even, you can high performance concrete synergist is made.
Embodiment 4：
1) each component is weighed by weight percentage：Polyacrylamide 10KG；Sodium sulfite 12KG；Ethylene glycol 3KG, diethanol
Three isopropanol 4KG；Triisopropanolamine 9KG；Calcium formate 6KG；Diethylenetriamine pentacarboxylic acid sodium 5KG；Calgon 4KG；Water
47KG。
2) polyalcohol and triisopropanolamine and calcium formate are mixed evenly, obtain initial mixing liquid；
3) initial mixing liquid and calgon are mixed, stirs evenly, obtains intermediate mixed solution；
4) diethylenetriamine pentacarboxylic acid sodium, polyacrylamide and sodium sulfite are added in intermediate mixed solution, stirring is equal
It is even, you can high performance concrete synergist is made.
Embodiment 5：
1) each component is weighed by weight percentage：Polyacrylamide 9.5KG；Sodium sulfite 10KG；Ethylene glycol 3KG, diethyl
Three isopropanol 2KG of alcohol；Triisopropanolamine 6KG；Calcium formate 4KG；Diethylenetriamine pentacarboxylic acid sodium 4KG；Calgon 3KG；Water
58.5KG。
2) polyalcohol and triisopropanolamine and calcium formate are mixed evenly, obtain initial mixing liquid；
3) initial mixing liquid and calgon are mixed, stirs evenly, obtains intermediate mixed solution；
4) diethylenetriamine pentacarboxylic acid sodium, polyacrylamide and sodium sulfite are added in intermediate mixed solution, stirring is equal
It is even, you can high performance concrete synergist is made.
Embodiment 6：
1) each component is weighed by weight percentage：Polyacrylamide 9.5KG；Sodium sulfite 10KG；Ethylene glycol 4KG, diethyl
Three isopropanol 2KG of alcohol；Triisopropanolamine 6KG；Calcium formate 4KG；Diethylenetriamine pentacarboxylic acid sodium 4KG；Calgon 3KG；Water
57.5KG。
2) polyalcohol and triisopropanolamine and calcium formate are mixed evenly, obtain initial mixing liquid；
3) initial mixing liquid and calgon are mixed, stirs evenly, obtains intermediate mixed solution；
4) diethylenetriamine pentacarboxylic acid sodium, polyacrylamide and sodium sulfite are added in intermediate mixed solution, stirring is equal
It is even, you can high performance concrete synergist is made.
Embodiment 7：
1) each component is weighed by weight percentage：Polyacrylamide 9.5KG；Sodium sulfite 10KG；Ethylene glycol 1KG, diethyl
Three isopropanol 4KG of alcohol；Triisopropanolamine 6KG；Calcium formate 4KG；Diethylenetriamine pentacarboxylic acid sodium 4KG；Calgon 3KG；Water
58.5KG。
2) polyalcohol and triisopropanolamine and calcium formate are mixed evenly, obtain initial mixing liquid；
3) initial mixing liquid and calgon are mixed, stirs evenly, obtains intermediate mixed solution；
4) diethylenetriamine pentacarboxylic acid sodium, polyacrylamide and sodium sulfite are added in intermediate mixed solution, stirring is equal
It is even, you can high performance concrete synergist is made.
Embodiment 8：
1) each component is weighed by weight percentage：Polyacrylamide 9.5KG；Sodium sulfite 10KG；Ethylene glycol 6KG, diethyl
Three isopropanol 1KG of alcohol；Triisopropanolamine 6KG；Calcium formate 4KG；Diethylenetriamine pentacarboxylic acid sodium 4KG；Calgon 3KG；Water
57.5KG。
2) polyalcohol and triisopropanolamine and calcium formate are mixed evenly, obtain initial mixing liquid；
3) initial mixing liquid and calgon are mixed, stirs evenly, obtains intermediate mixed solution；
4) diethylenetriamine pentacarboxylic acid sodium, polyacrylamide and sodium sulfite are added in intermediate mixed solution, stirring is equal
It is even, you can high performance concrete synergist is made.
Embodiment 9：
1) each component is weighed by weight percentage：Polyacrylamide 9.5KG；Sodium sulfite 10KG；Ethylene glycol 6KG, diethyl
Three isopropanol 1KG of alcohol；Triisopropanolamine 1KG；Calcium formate 9KG；Diethylenetriamine pentacarboxylic acid sodium 4KG；Calgon 3KG；Water
57.5KG。
2) polyalcohol and triisopropanolamine and calcium formate are mixed evenly, obtain initial mixing liquid；
3) initial mixing liquid and calgon are mixed, stirs evenly, obtains intermediate mixed solution；
4) diethylenetriamine pentacarboxylic acid sodium, polyacrylamide and sodium sulfite are added in intermediate mixed solution, stirring is equal
It is even, you can high performance concrete synergist is made.
Embodiment 10：
1) each component is weighed by weight percentage：Polyacrylamide 9.5KG；Sodium sulfite 10KG；Ethylene glycol 6KG, diethyl
Three isopropanol 1KG of alcohol；Triisopropanolamine 14KG；Calcium formate 1KG；Diethylenetriamine pentacarboxylic acid sodium 4KG；Calgon 3KG；Water
51.5KG。
2) polyalcohol and triisopropanolamine and calcium formate are mixed evenly, obtain initial mixing liquid；
3) initial mixing liquid and calgon are mixed, stirs evenly, obtains intermediate mixed solution；
4) diethylenetriamine pentacarboxylic acid sodium, polyacrylamide and sodium sulfite are added in intermediate mixed solution, stirring is equal
It is even, you can high performance concrete synergist is made.
Illustrate, the mixture any component therein in the present invention is not less than 1KG, that is, is more than or equal to 1GK.
High-performance cement synergist of the present invention is as follows to the contrast experiment of concrete crushing strength and slump：
This experiment uses mechanical agitation mixing concrete, additive and Concrete synergist to use with method addition is mixed, stir
Time is 5-10 minutes, and compares sample with the blank for being not added with Concrete synergist and compared.Concrete strength is according to GB/
T50081-2016《Standard for test methods of mechanical properties of ordinary concrete》It tests, slump performance is according to GB/
T50080-2016《Normal concrete mixture performance methodology testing standard》It tests.
Concrete mix (C30) is as shown in table 1 below when control experiment.
1 concrete control experiment match ratio (kg/m3) of table
| Cement | Flyash | It is classified stone | Coarse sand | Fine sand | Water | Additive |
| 280 | 60 | 923 | 100 | 860 | 162 | 2.05% |
In embodiment 1/3/5/7/9, all compositions and ratio are all identical as blank control experiment, only add in each embodiment
6 ‰ each cement synergist is entered, each performance is as shown in the following table 2 and table 3.
2 mechanical property experimental results of table
| Group | 7 days compression strength (MPa) | 28 days compression strength (MPa) |
| Blank control experiment | 27.3 | 46.7 |
| Embodiment 1 | 33.4 | 50.2 |
| Embodiment 3 | 33.1 | 50.4 |
| Embodiment 5 | 32.8 | 49.7 |
| Embodiment 7 | 32.5 | 51.2 |
| Embodiment 9 | 33.4 | 51.6 |
3 slump of table and workability experimental result
It can be seen that from the experimental result of table 2 and table 3 after the synergist of the present invention is added in concrete, concrete
7 days intensity of mechanical property averagely increases 21%, and 28 days intensity increases 8.6%, and the intensity of concrete is obtained for
Greatly improve；The first of concrete makes slump and loss of slump have a degree of improvement, at the same concrete and it is easy
Property all performances it is good, and slightly have and a little improve.
Finally it should be noted that：Obviously, the above embodiment is merely an example for clearly illustrating the present invention, and simultaneously
The non-restriction to embodiment.For those of ordinary skill in the art, it can also do on the basis of the above description
Go out other various forms of variations or variation.There is no necessity and possibility to exhaust all the enbodiments.And thus drawn
The obvious changes or variations that Shen goes out are still in the protection scope of this invention.
Claims (7)
1. a kind of Concrete synergist, which is characterized in that in parts by weight, be made of the raw material of following mass percent
's：
Polyacrylamide 7%-12%；
Sodium sulfite 4%-18%；
Polyalcohol 5%-7%；
Triisopropanolamine and formic acid calcium compound 10%-15%；
Diethylenetriamine pentacarboxylic acid sodium 3%-5%；
Calgon 2%-4%；
Surplus is water.
2. a kind of Concrete synergist according to claim 1, which is characterized in that the polyalcohol is ethylene glycol, the third two
It is one or more in alcohol, three isopropanol of diethanol.
3. a kind of Concrete synergist according to claim 2, which is characterized in that the triisopropanolamine：Calcium formate is
3:2。
4. a kind of Concrete synergist according to claim 2, which is characterized in that the polyacrylamide 9%-10%；
Sodium sulfite 8%-12%；Three isopropanol mixture 5%-7% of ethylene glycol and diethanol；Triisopropanolamine 6%-9%；Calcium formate
4%-6%；Diethylenetriamine pentacarboxylic acid sodium 3%-5%；Calgon 2%-4%.
5. a kind of Concrete synergist according to claim 3, which is characterized in that the polyacrylamide 9.5%；Sulfurous
Sour sodium 10%；Three isopropanol mixture 6% of ethylene glycol and diethanol；Triisopropanolamine 6%；Calcium formate 4%；Diethylenetriamine five
Carboxylic acid sodium 4%；Calgon 3%.
6. a kind of Concrete synergist according to claim 4, which is characterized in that the polyacrylamide 9.5%；Sulfurous
Sour sodium 10%；Ethylene glycol 4%；Three isopropanol 2% of diethanol；Triisopropanolamine 6%；Calcium formate 4%；Diethylenetriamine pentacarboxylic acid
Sodium 4%；Calgon 3%.
7. preparing a kind of preparation method of Concrete synergist described in claim 1, which is characterized in that comprise the steps of：
1) each component is weighed by weight percentage：Polyacrylamide 7%-12%；Sodium sulfite 4%-18%；Polyalcohol 5%-
7%；Triisopropanolamine and calcium formate 10%-15%；Diethylenetriamine pentacarboxylic acid sodium 3%-5%；Calgon 2%-4%；
Surplus is water.
2) polyalcohol and triisopropanolamine and calcium formate are mixed evenly, obtain initial mixing liquid；
3) initial mixing liquid and calgon are mixed, stirs evenly, obtains intermediate mixed solution；
4) diethylenetriamine pentacarboxylic acid sodium, polyacrylamide and sodium sulfite are added in intermediate mixed solution, is stirred evenly, i.e.,
High performance concrete synergist can be made.
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| CN109095810A (en) * | 2018-11-07 | 2018-12-28 | 青海民族大学 | A kind of Concrete synergist and preparation method thereof |
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Application publication date: 20180928 |