CN108793811A - A kind of preparation method of the enhanced alkali-free liquid accelerator of durability - Google Patents
A kind of preparation method of the enhanced alkali-free liquid accelerator of durability Download PDFInfo
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- CN108793811A CN108793811A CN201810934458.2A CN201810934458A CN108793811A CN 108793811 A CN108793811 A CN 108793811A CN 201810934458 A CN201810934458 A CN 201810934458A CN 108793811 A CN108793811 A CN 108793811A
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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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- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/10—Accelerators; Activators
- C04B2103/12—Set accelerators
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- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention discloses a kind of preparation methods of the enhanced alkali-free liquid accelerator of durability.Acylate is made by the way that maleic anhydride and urea to be acylated in the preparation method of the present invention, then carries out being copolymerized obtained suspension stabilizer with acrylamide and acrylic acid, uses it for the synthesis for preparing alkali-free liquid accelerator.It is acylated and the suspension stabilizer with amide structure is made by introducing maleic anhydride and urea, improve the coherency of liquid accelerator, effectively inhibit the generation of precipitation, substantially increase the stability of mother liquor storage, stability can reach 15 months or more；And amide structure and urea can promote the development of early strength, to promote the early strength of concrete.
Description
Technical field
The invention belongs to building material technical fields, and in particular to a kind of system of the enhanced alkali-free liquid accelerator of durability
Preparation Method.
Background technology
With the acceleration of large-scale mining, tunnel excavation and network of highways and railway network engineering construction so that speed
Solidifying agent dosage greatly increases, and to the performance quality of accelerator, higher requirements are also raised.Conventional powdered accelerator product can only
It constructs applied to dry pressure spray process, and that there are solution rates is slow, the defects of being not easy to be uniformly dispersed.
Currently, the development trend of gunite concrete accelerator is changed from traditional solid powdery to liquid, and
Low alkali, alkali-free just gradually replace traditional accelerator.There are alkali content height, later strengths for the liquid accelerator that the country uses at present
The problems such as loss is big, maturing is impervious poor.The high environmental pollution of alkali content is serious, and big, coagulation is injured to construction personnel
The problems such as native unstable quality, develops a kind of durability to improve injury of the accelerator to constructor and concrete quality
Enhanced alkali-free liquid accelerator is of great significance.
Invention content
The purpose of the present invention is to provide a kind of preparation methods of the enhanced alkali-free liquid accelerator of durability.
Technical scheme is as follows：
A kind of preparation method of the enhanced alkali-free liquid accelerator of durability, includes the following steps：
(1) acylation reaction：It is first added maleic anhydride and urea in reaction unit, under nitrogen protection, is warming up to 60 DEG C, then
Catalyst is added, is to slowly warm up to 70~90 DEG C, 1.5~4h of constant temperature, cooling obtains acylate, and maleic anhydride and urea rub
You are than being 1: 1~2；
(2) preparation of suspension stabilizer：By above-mentioned acylate, acrylamide aqueous solution, acrylic acid aqueous solution, persulfuric acid
Aqueous ammonium and molecular weight regulator aqueous solution, which instill in water, to be reacted, and reaction temperature is 50~90 DEG C, time for adding 1.0
~4.0h keeps the temperature 0~3.0h, obtains suspension stabilizer；The total amount of water used in the step makes the mass concentration of the suspension stabilizer
It is 5~40%, the mass ratio of acylate, acrylamide solution and acrylic acid solution is 1: 1~2: 0.2~1；
(3) preparation of reinforcing agent：Hydramine and ethanedioic acid to be reacted, 50~90 DEG C of reaction temperature adds catalyst,
Reaction time is 1~4h, obtains the first mixture；Glycerine is added into the first mixture again to be reacted, reaction temperature 70
~90 DEG C, reaction time 1-4h obtains reinforcing agent；The molar ratio of hydramine, ethanedioic acid and glycerine is 1: 1: 0.4~1.2；On
It is monoethanolamine, diethanol amine, triethanolamine and triisopropanolamine, diethanol monoisopropanolamine and monoethanol diisopropyl to state hydramine
At least one of hydramine；
Catalyst in above-mentioned steps (1) and step (3) is p-methyl benzenesulfonic acid and/or the concentrated sulfuric acid；
(4) by weight, suspension stabilizer and 1~10 part of ammonium hydroxide made from 0.2~3.0 part of step (2) are added to
It is stirred in water, reaction temperature is 10~60 DEG C, adds 15~40 parts of aluminium hydroxides, 5~25 are added after 0.2~2.0h
Reinforcing agent made from part step (3) reacts 0.2~1h, obtains the enhanced alkali-free liquid accelerator of the durability；Used in the step
The total amount of water so that the mass concentration of the enhanced alkali-free liquid accelerator of the durability is 30~60%.
In a preferred embodiment of the invention, in the step (1), the dosage of the catalyst is maleic anhydride
With the 0.3~0.6% of urea gross mass.
In a preferred embodiment of the invention, in the step (2), the dosage of the ammonium persulfate is acylated produces
The 0.5~3.0% of the gross mass of solute in object, acrylamide solution and acrylic acid solution.
In a preferred embodiment of the invention, in the step (2), the dosage of the molecular weight regulator is acyl
Change the 0.2~3.0% of the gross mass of product, acrylamide solution and the solute in acrylic acid solution.
In a preferred embodiment of the invention, in the step (3), the dosage of the catalyst is hydramine and second
The 0.3~4.0% of the gross mass of diacid.
It is further preferred that the molecular weight regulator is thioacetic acid, mercaptopropionic acid, mercaptoethanol, isopropanol and ten
At least one of two mercaptan.
The beneficial effects of the invention are as follows：
1, acylate is made by the way that maleic anhydride and urea to be acylated in preparation method of the invention, then with acrylamide and
Acrylic acid carries out being copolymerized obtained suspension stabilizer, uses it for the synthesis for preparing alkali-free liquid accelerator.By introducing maleic acid
Acid anhydride and urea, which are acylated, is made the suspension stabilizer with amide structure, improves the coherency of liquid accelerator, effective to inhibit
The generation of precipitation, substantially increases the stability of mother liquor storage, and stability can reach 15 months or more；And amide structure
The development that can promote early strength with urea, to promote the early strength of concrete.
2, enhancing first is made with glycerine esterification again with after ethanedioic acid esterification by hydramine in preparation method method of the present invention
Agent, then applied in the synthesis of alkali-free liquid accelerator, the early strength and later strength of concrete can be improved.
3, the enhanced alkali-free liquid accelerator of high-durability for preparing of the present invention not containing sulfate, chlorion, alkali content, because
This can promote the durability of concrete.
Specific implementation mode
Technical scheme of the present invention is further detailed and is described below by way of specific implementation mode.
Embodiment 1
(1) acylation reaction：First it is added 100.00g maleic anhydrides and 66.00g urea in reaction unit, under nitrogen protection,
60 DEG C are warming up to, 0.60g p-methyl benzenesulfonic acid is added, is to slowly warm up to 85 DEG C, constant temperature 1.0h, cooling obtains acylate；
(2) preparation of suspension stabilizer：By 100.00g acylates, acrylamide aqueous solution (wherein acrylic acid
120.00g and water 150.00g), acrylic acid aqueous solution (wherein acrylic acid 32.00g and water 150.00g), ammonium persulfate aqueous solution
(wherein ammonium persulfate 2.30g and water 150.00g) and thioacetic acid aqueous solution (wherein thioacetic acid 1.50g and water 150.00g),
It instills in 500.00g water and is reacted, reaction temperature is 80 DEG C, time for adding 2.0h, keeps the temperature 1.0h, obtains suspension stabilizer；
(3) preparation of reinforcing agent：105.00g diethanol amine and 90.00g ethanedioic acids are reacted, 66 DEG C of reaction temperature,
1.00g p-methyl benzenesulfonic acid is added, reaction time 2h obtains the first mixture；46.00g is added into the first mixture again
Glycerine is reacted, and 70 DEG C of reaction temperature, reaction time 2.0h obtains reinforcing agent；
(4) suspension stabilizer and 3.20g ammonium hydroxide made from 1.20g steps (2) are added in 50.00g water and are stirred,
Reaction temperature is 45 DEG C, adds 20.00g aluminium hydroxides, reinforcing agent made from 10.00g steps (3) is added after 1.0h, instead
0.5h is answered, the enhanced alkali-free liquid accelerator of the high-durability is obtained.
Embodiment 2
(1) acylation reaction：First it is added 100.00g maleic anhydrides and 71.00g urea in reaction unit, under nitrogen protection,
60 DEG C are warming up to, the 0.80g concentrated sulfuric acids are added, is to slowly warm up to 75 DEG C, constant temperature 2.0h, cooling obtains acylate；
(2) preparation of suspension stabilizer：By 100.00g acylates, acrylamide aqueous solution (wherein acrylic acid
142.00g and water 150.00g), acrylic acid aqueous solution (wherein acrylic acid 36.00g and water 150.00g), ammonium persulfate aqueous solution
(wherein ammonium persulfate 1.70g and water 150.00g) and mercaptopropionic acid aqueous solution (wherein mercaptopropionic acid 1.70g and water 150.00g),
It instills in 500.00g water and is reacted, reaction temperature is 70 DEG C, time for adding 3.0h, keeps the temperature 2.0h, obtains suspension stabilizer；
(3) preparation of reinforcing agent：61.00g monoethanolamines and 90.00g ethanedioic acids are reacted, 80 DEG C of reaction temperature,
The 0.90g concentrated sulfuric acids are added, reaction time 3.0h obtains the first mixture；56.00g third is added into the first mixture again
Triol is reacted, and 80 DEG C of reaction temperature, reaction time 2.0h obtains reinforcing agent；
(4) suspension stabilizer and 5.00g ammonium hydroxide made from 2.00g steps (2) are added in 50.00g water and are stirred,
Reaction temperature is 50 DEG C, adds 30.00g aluminium hydroxides, reinforcing agent made from 12.00g steps (3) is added after 1.5h, instead
0.5h is answered, the enhanced alkali-free liquid accelerator of the high-durability is obtained.
Embodiment 3
(1) acylation reaction：First it is added 100.00g maleic anhydrides and 68.00g urea in reaction unit, under nitrogen protection,
60 DEG C are warming up to, the 0.70g concentrated sulfuric acids are added, is to slowly warm up to 80 DEG C, constant temperature 3.5h, cooling obtains acylate；
(2) preparation of suspension stabilizer：By 100.00g acylates, acrylamide aqueous solution (wherein acrylic acid
155.00g and water 150.00g), acrylic acid aqueous solution (wherein acrylic acid 38.00g and water 150.00g), ammonium persulfate aqueous solution
(wherein ammonium persulfate 2.80g and water 150.00g) and mercaptoethanol aqueous solution (wherein mercaptoethanol 3.00g and water 150.00g),
It instills in 520.00g water and is reacted, reaction temperature is 80 DEG C, time for adding 2.0h, keeps the temperature 3.0h, obtains suspension stabilizer；
(3) preparation of reinforcing agent：149.00g triethanolamines and 90.00g ethanedioic acids are reacted, 60 DEG C of reaction temperature,
The 1.00g concentrated sulfuric acids are added, reaction time 2.5h obtains the first mixture；74.00g third is added into the first mixture again
Triol is reacted, and 75 DEG C of reaction temperature, reaction time 3.0h obtains reinforcing agent；
(4) suspension stabilizer and 4.00g ammonium hydroxide made from 1.50g steps (2) are added in 50.00g water and are stirred,
Reaction temperature is 45 DEG C, adds 25.00g aluminium hydroxides, reinforcing agent made from 10.00g steps (3) is added after 1.0h, instead
0.5h is answered, the enhanced alkali-free liquid accelerator of the high-durability is obtained.
Embodiment 4
(1) acylation reaction：First it is added 100.00g maleic anhydrides and 82.00g urea in reaction unit, under nitrogen protection,
60 DEG C are warming up to, 0.80g p-methyl benzenesulfonic acid is added, is to slowly warm up to 80 DEG C, constant temperature 2.5h, cooling obtains acylate；
(2) preparation of suspension stabilizer：By 100.00g acylates, acrylamide aqueous solution (wherein acrylic acid
136.00g and water 150.00g), acrylic acid aqueous solution (wherein acrylic acid 50.00g and water 150.00g), ammonium persulfate aqueous solution
(wherein ammonium persulfate 2.00g and water 150.00g) and isopropanol water solution (wherein isopropanol 2.60g and water 150.00g) instills
It is reacted in 520.00g water, reaction temperature is 60 DEG C, time for adding 4.0h, keeps the temperature 1.0h, obtains suspension stabilizer；
(3) preparation of reinforcing agent：191.00g triisopropanolamines and 90.00g ethanedioic acids are reacted, reaction temperature 75
DEG C, the 1.40g concentrated sulfuric acids are added, reaction time 2.5h obtains the first mixture；65.00g is added into the first mixture again
Glycerine is reacted, and 85 DEG C of reaction temperature, reaction time 1.0h obtains reinforcing agent；
(4) suspension stabilizer and 8.00g ammonium hydroxide made from 2.00g steps (2) are added in 50.00g water and are stirred,
Reaction temperature is 30 DEG C, adds 28.00g aluminium hydroxides, reinforcing agent made from 15.00g steps (3) is added after 0.5h, instead
0.5h is answered, the enhanced alkali-free liquid accelerator of the high-durability is obtained.
Embodiment 5
(1) acylation reaction：100.00g maleic anhydrides and 100.00g urea, nitrogen protection are first added in reaction unit
Under, 60 DEG C are warming up to, the 1.00g concentrated sulfuric acids are added, is to slowly warm up to 85 DEG C, constant temperature 3.5h, cooling obtains acylate；
(2) preparation of suspension stabilizer：By 100.00g acylates, acrylamide aqueous solution (wherein acrylic acid
160.00g and water 150.00g), acrylic acid aqueous solution (wherein acrylic acid 60.00g and water 150.00g), ammonium persulfate aqueous solution
(wherein ammonium persulfate 2.60g and water 150.00g) and thioacetic acid aqueous solution (wherein thioacetic acid 2.50g and water 150.00g),
It instills in 600.00g water and is reacted, reaction temperature is 65 DEG C, time for adding 3.0h, keeps the temperature 1.0h, obtains suspension stabilizer；
(3) preparation of reinforcing agent：163.20g diethanols monoisopropanolamine and 90.00g ethanedioic acids are reacted, reacted
80 DEG C of temperature, adds the 1.30g concentrated sulfuric acids, and reaction time 3.0h obtains the first mixture；It is added again into the first mixture
90.00g glycerine is reacted, and 80 DEG C of reaction temperature, reaction time 2.0h obtains reinforcing agent；
(4) suspension stabilizer and 6.00g ammonium hydroxide made from 1.00g steps (2) are added in 50.00g water and are stirred,
Reaction temperature is 20 DEG C, adds 35.00g aluminium hydroxides, reinforcing agent made from 20.00g steps (3) is added after 1.0h, instead
0.5h is answered, the enhanced alkali-free liquid accelerator of the high-durability is obtained.
The enhanced alkali-free liquid accelerator of high-durability obtained by embodiment 1 to embodiment 5 is tested, sea is selected
42.5 Portland cements of spiral shell P.O.According to JC477-2005《Gunite concrete accelerator》Gained high-durability is enhanced
Type alkali-free liquid accelerator carries out cement paste condensed water time and strength of cement mortar experiment.Wherein accelerator dosage is according to water
The percentage calculation of mud weight.
Cement paste setting time tests
Cement 400
Water 160
Strength of cement mortar is tested
Cement 900
Normal sand 1350
Water 450
Accelerator is added according to the 5% of cement weight in cement slurry, while above-mentioned water consumption contains liquid accelerator
Contained in water.As a comparison with presently commercially available alkali-free liquid accelerator (sample 1), cement paste setting time, sand have been carried out
Slurry intensity and stability are tested.Test result such as table 1 and 2.
1 cement paste setting time test result of table
2 strength of cement mortar of table is tested and stability
The presetting period and end of the enhanced alkali-free liquid accelerator of high-durability of the invention as can be seen from Table 1 and Table 2
The solidifying time is all more shorter than commercially available alkali-free liquid accelerator, and 1d compression strength and 28d compressive strength rate highers, stability are more preferable.
Those of ordinary skill in the art remain able to it is found that when technical scheme of the present invention changes in following ranges
To same as the previously described embodiments or similar technique effect, protection scope of the present invention is still fallen within：
A kind of preparation method of the enhanced alkali-free liquid accelerator of durability, includes the following steps：
(1) acylation reaction：It is first added maleic anhydride and urea in reaction unit, under nitrogen protection, is warming up to 60 DEG C, then
Catalyst is added, is to slowly warm up to 70~90 DEG C, 1.5~4h of constant temperature, cooling obtains acylate, and maleic anhydride and urea rub
You are than being 1: 1~2；
(2) preparation of suspension stabilizer：By above-mentioned acylate, acrylamide aqueous solution, acrylic acid aqueous solution, persulfuric acid
Aqueous ammonium and molecular weight regulator aqueous solution, which instill in water, to be reacted, and reaction temperature is 50~90 DEG C, time for adding 1.0
~4.0h keeps the temperature 0~3.0h, obtains suspension stabilizer；The total amount of water used in the step makes the mass concentration of the suspension stabilizer
It is 5~40%, the mass ratio of acylate, acrylamide solution and acrylic acid solution is 1: 1~2: 0.2~1；
(3) preparation of reinforcing agent：Hydramine and ethanedioic acid to be reacted, 50~90 DEG C of reaction temperature adds catalyst,
Reaction time is 1~4h, obtains the first mixture；Glycerine is added into the first mixture again to be reacted, reaction temperature 70
~90 DEG C, reaction time 1-4h obtains reinforcing agent；The molar ratio of hydramine, ethanedioic acid and glycerine is 1: 1: 0.4~1.2；On
It is monoethanolamine, diethanol amine, triethanolamine and triisopropanolamine, diethanol monoisopropanolamine and monoethanol diisopropyl to state hydramine
At least one of hydramine；
Catalyst in above-mentioned steps (1) and step (3) is p-methyl benzenesulfonic acid and/or the concentrated sulfuric acid；
(4) by weight, suspension stabilizer and 1~10 part of ammonium hydroxide made from 0.2~3.0 part of step (2) are added to
It is stirred in water, reaction temperature is 10~60 DEG C, adds 15~40 parts of aluminium hydroxides, 5~25 are added after 0.2~2.0h
Reinforcing agent made from part step (3) reacts 0.2~1h, obtains the enhanced alkali-free liquid accelerator of the durability；Used in the step
The total amount of water so that the mass concentration of the enhanced alkali-free liquid accelerator of the durability is 30~60%.
In the step (1), the dosage of the catalyst is the 0.3~0.6% of maleic anhydride and urea gross mass.It is described
In step (2), the dosage of the ammonium persulfate is total matter of the solute in acylate, acrylamide solution and acrylic acid solution
The 0.5~3.0% of amount；The dosage of the molecular weight regulator is in acylate, acrylamide solution and acrylic acid solution
The 0.2~3.0% of the gross mass of solute.In the step (3), the dosage of the catalyst is the gross mass of hydramine and ethanedioic acid
0.3~4.0%.
The molecular weight regulator be thioacetic acid, mercaptopropionic acid, mercaptoethanol, isopropanol and lauryl mercaptan at least
It is a kind of.
The foregoing is only a preferred embodiment of the present invention, therefore cannot limit the scope of implementation of the present invention according to this, i.e.,
According to equivalent changes and modifications made by the scope of the claims of the present invention and description, all should still belong in the range of the present invention covers.
Claims (6)
1. a kind of preparation method of the enhanced alkali-free liquid accelerator of durability, it is characterised in that：Include the following steps：
(1) acylation reaction：It is first added maleic anhydride and urea in reaction unit, under nitrogen protection, is warming up to 60 DEG C, adds
Catalyst is to slowly warm up to 70~90 DEG C, 1.5~4h of constant temperature, and cooling obtains acylate, the molar ratio of maleic anhydride and urea
It is 1: 1~2；
(2) preparation of suspension stabilizer：By above-mentioned acylate, acrylamide aqueous solution, acrylic acid aqueous solution, ammonium persulfate water
Solution and molecular weight regulator aqueous solution, which instill in water, to be reacted, and reaction temperature is 50~90 DEG C, and time for adding is 1.0~
4.0h keeps the temperature 0~3.0h, obtains suspension stabilizer；The total amount of water used in the step so that the mass concentration of the suspension stabilizer is 5
~40%, the mass ratio of acylate, acrylamide solution and acrylic acid solution is 1: 1~2: 0.2~1；
(3) preparation of reinforcing agent：Hydramine and ethanedioic acid are reacted, 50~90 DEG C of reaction temperature adds catalyst, reaction
Time is 1~4h, obtains the first mixture；Glycerine is added into the first mixture again to be reacted, reaction temperature 70~90
DEG C, reaction time 1-4h obtains reinforcing agent；The molar ratio of hydramine, ethanedioic acid and glycerine is 1: 1: 0.4~1.2；Above-mentioned alcohol
Amine is monoethanolamine, diethanol amine, triethanolamine and triisopropanolamine, diethanol monoisopropanolamine and monoethanol diisopropanolamine (DIPA)
At least one of；
Catalyst in above-mentioned steps (1) and step (3) is p-methyl benzenesulfonic acid and/or the concentrated sulfuric acid；
(4) by weight, suspension stabilizer and 1~10 part of ammonium hydroxide made from 0.2~3.0 part of step (2) are added to the water
It is stirred, reaction temperature is 10~60 DEG C, adds 15~40 parts of aluminium hydroxides, 5~25 parts of steps are added after 0.2~2.0h
Suddenly reinforcing agent made from (3) reacts 0.2~1h, obtains the enhanced alkali-free liquid accelerator of the durability；Water used in the step
Total amount so that the mass concentration of the enhanced alkali-free liquid accelerator of the durability is 30~60%.
2. preparation method as described in claim 1, it is characterised in that：In the step (1), the dosage of the catalyst is horse
Come the 0.3~0.6% of acid anhydrides and urea gross mass.
3. preparation method as described in claim 1, it is characterised in that：In the step (2), the dosage of the ammonium persulfate is
The 0.5~3.0% of the gross mass of solute in acylate, acrylamide solution and acrylic acid solution.
4. preparation method as described in claim 1, it is characterised in that：In the step (2), the use of the molecular weight regulator
Amount is the 0.2~3.0% of the gross mass of the solute in acylate, acrylamide solution and acrylic acid solution.
5. preparation method as described in claim 1, it is characterised in that：In the step (3), the dosage of the catalyst is alcohol
The 0.3~4.0% of the gross mass of amine and ethanedioic acid.
6. the preparation method as described in any claim in claim 1 to 5, it is characterised in that：The molecular weight regulator
For at least one of thioacetic acid, mercaptopropionic acid, mercaptoethanol, isopropanol and lauryl mercaptan.
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| CN201810934458.2A CN108793811B (en) | 2018-08-16 | 2018-08-16 | Preparation method of durability-enhanced alkali-free liquid accelerator |
| PCT/CN2019/094980 WO2020034784A1 (en) | 2018-08-16 | 2019-07-08 | Preparation method for durability-enhanced alkali-free liquid accelerator |
| PH12019502019A PH12019502019A1 (en) | 2018-08-16 | 2019-09-04 | Method for preparing durable reinforced alkali-free liquid accelerators |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824294A (en) * | 2019-03-25 | 2019-05-31 | 科之杰新材料集团有限公司 | A kind of high-strength stable type liquid accelerator and preparation method thereof |
| WO2020034784A1 (en) * | 2018-08-16 | 2020-02-20 | 科之杰新材料集团有限公司 | Preparation method for durability-enhanced alkali-free liquid accelerator |
| CN113929339A (en) * | 2021-09-06 | 2022-01-14 | 中铁第一勘察设计院集团有限公司 | Composite acetone reinforced alkali-free liquid accelerator |
| CN116161893A (en) * | 2023-03-02 | 2023-05-26 | 中国水利水电第七工程局有限公司 | Preparation method of crosslinking monomer for preparing high-early-strength low-resilience concrete |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4300239A1 (en) * | 1993-01-07 | 1994-07-14 | Basf Ag | Use of partially esterified copolymers containing carboxyl groups as dispersants |
| WO2003000617A1 (en) * | 2001-06-22 | 2003-01-03 | Sika Ag, Vorm. Kaspar Winkler & Co. | Method for accelerating the setting and hardening of hydraulic binding agents and mixtures containing the same |
| CN102126841A (en) * | 2010-12-31 | 2011-07-20 | 科之杰新材料(漳州)有限公司 | High-performance reinforcing agent for pile and preparation method thereof |
| CN102229477A (en) * | 2011-04-29 | 2011-11-02 | 中国建筑材料科学研究总院 | Alkali-free and chlorine-free liquid concrete accelerating agent as well as preparation method and application thereof |
| CN104230198A (en) * | 2014-09-12 | 2014-12-24 | 北京工业大学 | Admixture for increasing activity index of air cooling slag and preparation method thereof |
| CN104961378A (en) * | 2015-06-23 | 2015-10-07 | 汤海涛 | Cement grinding aid |
| CN108101403A (en) * | 2017-12-28 | 2018-06-01 | 科之杰新材料集团有限公司 | A kind of preparation method of environment-friendly type alkali-free liquid accelerator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE557046T1 (en) * | 2000-03-22 | 2012-05-15 | Sika Technology Ag | CEMENT DISPERSING POLYMERS FOR SELF-COMPACTING CONCRETE WITH HIGH FLOWABILITY AND HIGH STRENGTH |
| CN108178548B (en) * | 2017-12-28 | 2019-09-06 | 福建科之杰新材料有限公司 | A kind of preparation method of high-durability alkali-free liquid accelerator |
| CN108793811B (en) * | 2018-08-16 | 2020-06-09 | 科之杰新材料集团有限公司 | Preparation method of durability-enhanced alkali-free liquid accelerator |
-
2018
- 2018-08-16 CN CN201810934458.2A patent/CN108793811B/en active Active
-
2019
- 2019-07-08 WO PCT/CN2019/094980 patent/WO2020034784A1/en active Application Filing
- 2019-09-04 PH PH12019502019A patent/PH12019502019A1/en unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4300239A1 (en) * | 1993-01-07 | 1994-07-14 | Basf Ag | Use of partially esterified copolymers containing carboxyl groups as dispersants |
| WO2003000617A1 (en) * | 2001-06-22 | 2003-01-03 | Sika Ag, Vorm. Kaspar Winkler & Co. | Method for accelerating the setting and hardening of hydraulic binding agents and mixtures containing the same |
| CN102126841A (en) * | 2010-12-31 | 2011-07-20 | 科之杰新材料(漳州)有限公司 | High-performance reinforcing agent for pile and preparation method thereof |
| CN102229477A (en) * | 2011-04-29 | 2011-11-02 | 中国建筑材料科学研究总院 | Alkali-free and chlorine-free liquid concrete accelerating agent as well as preparation method and application thereof |
| CN104230198A (en) * | 2014-09-12 | 2014-12-24 | 北京工业大学 | Admixture for increasing activity index of air cooling slag and preparation method thereof |
| CN104961378A (en) * | 2015-06-23 | 2015-10-07 | 汤海涛 | Cement grinding aid |
| CN108101403A (en) * | 2017-12-28 | 2018-06-01 | 科之杰新材料集团有限公司 | A kind of preparation method of environment-friendly type alkali-free liquid accelerator |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020034784A1 (en) * | 2018-08-16 | 2020-02-20 | 科之杰新材料集团有限公司 | Preparation method for durability-enhanced alkali-free liquid accelerator |
| CN109824294A (en) * | 2019-03-25 | 2019-05-31 | 科之杰新材料集团有限公司 | A kind of high-strength stable type liquid accelerator and preparation method thereof |
| CN109824294B (en) * | 2019-03-25 | 2021-08-17 | 科之杰新材料集团有限公司 | High-strength stable liquid accelerator and preparation method thereof |
| CN113929339A (en) * | 2021-09-06 | 2022-01-14 | 中铁第一勘察设计院集团有限公司 | Composite acetone reinforced alkali-free liquid accelerator |
| CN116161893A (en) * | 2023-03-02 | 2023-05-26 | 中国水利水电第七工程局有限公司 | Preparation method of crosslinking monomer for preparing high-early-strength low-resilience concrete |
| CN116161893B (en) * | 2023-03-02 | 2023-12-01 | 中国水利水电第七工程局有限公司 | Preparation method of crosslinking monomer for preparing high-early-strength low-resilience concrete |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108793811B (en) | 2020-06-09 |
| WO2020034784A1 (en) | 2020-02-20 |
| PH12019502019A1 (en) | 2020-03-16 |
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