CN106336141A - High-stability alkali-free chloride-free liquid accelerator and preparation method thereof - Google Patents
High-stability alkali-free chloride-free liquid accelerator and preparation method thereof Download PDFInfo
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- CN106336141A CN106336141A CN201610708544.2A CN201610708544A CN106336141A CN 106336141 A CN106336141 A CN 106336141A CN 201610708544 A CN201610708544 A CN 201610708544A CN 106336141 A CN106336141 A CN 106336141A
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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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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a high-stability alkali-free chloride-free liquid accelerator and a preparation method thereof. the preparation method comprises the following specific steps: dissolving 47-55 parts of a quick-setting component and 3.5-6 parts of an inorganic early-strength component into 27.9-44.2 parts of deionized water at 75-90 DEG C, adding 1-3 parts of a solubilizing component, stirring and reacting for 0.5-1 h, adding 2.5-5 parts of a complexing component, stirring and reacting for 1.5-2.5 h, adding 0.2-0.6 part of an aqueous solution of a thickening component and 0.6-1 part of an organic early-strength component, stirring for 15-30 min, cooling to 50-60 DEG C, adding 1-1.5 parts of a pH regulation component, and stirring for 15-30 min so as to obtain the high-stability alkali-free chloride-free liquid accelerator. The prepared accelerator product has advantages of no corrosiveness or pungent smell, good cement adaptability, low mixing amount, short setting time, high early strength, no loss of long-term strength and good stability under the condition of minus 15-30 DEG C.
Description
Technical field
The invention belongs to the concrete accelerator in building material field, more particularly to a kind of high stable type alkali-free chlorine-free
Liquid accelerating agent and preparation method thereof.
Background technology
With the development of the infrastructure industry such as China's high ferro, highway and subway, and limited by China's geomorphic feature
System, the constructing tunnel of central and west regions high ferro and highway is relatively more, and the demand of therefore gunite concrete is also to carry year by year
High.And concrete accelerator is a requisite part in gunite concrete, the quality of its effect directly influences injection and mixes
The jet quality of solidifying soil.The technical merit of gunite concrete is mainly reflected in research and the application of accelerator.Therefore, close both at home and abroad
Research in concrete spraying additive material is all placed on very important position accelerator.
Gunite concrete accelerator is divided into powder accelerator and liquid accelerator by state；Liquid accelerator is divided into alkalescence
Liquid accelerator and alkali-free liquid accelerator.Wherein powder accelerator and alkaline liquid accelerating agent exist operating environment dust big,
Corrosivity is strong, springback capacity is big, later strength loss is big and the shortcomings of poor durability, and alkali-free liquid accelerator does not have these
Defect.
The patent document of Publication No. cn102992677a discloses a kind of alkali-free liquid accelerator, and it adopts aluminum sulfate to make
For rapid hardening component, organic amine and polyalcohol are as stabilizer, but its stable component addition ratio is larger, and early strength is negatively affected
Very big, do not contain other stabilization aids, the stability of this accelerator is also poor simultaneously.Equally, publication number is respectively
Accelerator disclosed in the patent document of cn104370489a, cn104446090a, cn103664034a, cn103553406a
In, all add 6-10% about alcamines material, this also can have larger negative effect to early strength.Publication No.
Only add 2% about hydramine material in accelerator disclosed in the patent document of cn104891852a, but it is not equally deposited
In other stabilization aids, less stable.Ammonia is adopted in accelerator disclosed in the patent document of Publication No. cn103396027a
Water is as the accelerating component of alkali-free liquid accelerator, but human body being had a negative impact using meeting of ammoniacal liquor.Publication No.
Add the magnesia of 5-25% in accelerator disclosed in the patent document of cn104108894a, react due to not existing
Material, therefore its solubility aspect can be problematic, concrete can be produced certain stable after free magnesium adds simultaneously
Property harmful effect.
To sum up, the stable component of current alkali-free liquid accelerator is substantially deta, hydramine or polyalcohols material, but deposits
It is quantitative complexing in following defect: edta and aluminium ion, if the incorporation of hydramine and polyalcohol is less, it is complexed stabilizing power
Just limited, if addition is more, early strength can be subject to larger negatively affecting.Therefore, for solving this drawback, break alkali-free
Conjugate relation between early strength and stability in liquid accelerator, researches and develops a kind of network of new adaptation alkali-free liquid accelerator
Closing stabilising system is that current alkali-free liquid accelerator industry pole needs improved target.
Content of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of high stable type alkali-free chlorine-free liquid accelerating agent and its
Preparation method, the method repetition stability is good, pollution-free, without formaldehyde, not chloride ion-containing, prepared high stable type alkali-free chlorine-free
Liquid accelerating agent product non-corrosiveness, have no irritating odor, cement adaptability is good, volume is low, setting time is short, early strong intensity
High, later strength is not lost, under conditions of -15～30 DEG C, stability is very good.
The technical solution adopted for the present invention to solve the technical problems is:
Present invention firstly provides a kind of high stable type alkali-free chlorine-free liquid accelerating agent, by the raw material components of following parts by weight
Composition: rapid hardening component 47-55 part, inorganic accelerating component 3.5-6 part, deionized water 27.9-44.2 part, solubility enhancing component 1-3 part, network
Charge-coupled point of 2.5-5 part, thickener component aqueous solution 0.2-0.6 part, organic accelerating component 0.6-1 part, ph adjusts component 1-1.5 part.
Preferably, described rapid hardening group is divided into Patent alum.
Preferably, described inorganic accelerating component is one of ANN aluminium nitrate nonahydrate, sodium fluoride, magnesium sulfate, ferrous sulfate.
Preferably, described solubility enhancing component is one of Tween-20, Tween-80 or two kinds.
Preferably, described complexing components be 18- crown- 6,1-hydroxy ethylidene-1,1-diphosphonic acid, two kinds in ATMP.
Preferably, described thickener component is one of polyacrylamide, polyethylene glycol；Described polyacrylamide is molecule
Measure 5,000,000-1,000 ten thousand；Molecular weight polyethylene glycol is 4000.
Preferably, described thickener component aqueous solution mass concentration is 5-10%.
Preferably, described organic accelerating component be one of diethanol amine, triethanolamine, diethanol monoisopropanolamine or
Several.
Preferably, described ph regulation group is divided into one of 85% phosphoric acid, p-methyl benzenesulfonic acid.
The present invention also provides a kind of preparation method of above-mentioned high stable type alkali-free chlorine-free liquid accelerating agent, including entering in order
The following steps of row:
S1., at 75 DEG C -90 DEG C, first the rapid hardening component of corresponding weight portion and inorganic accelerating component are dissolved in deionization
In water, dissolving is completely；
S2. solubility enhancing component, stirring reaction 0.5-1h are added；
S3. complexing components, stirring reaction 1.5-2.5h are added；
S4. add the thickener component aqueous solution and organic accelerating component, stir 15-30min；
S5. it is cooled to 50-60 DEG C, adds ph to adjust component, stir 15-30min, finally give faint yellow or light green color and glue
Thick liquid, as described high stable type alkali-free chlorine-free liquid accelerating agent.
The positive effect of the present invention:
(1) the high stable type alkali-free chlorine-free liquid accelerator of present invention preparation overcomes current alkali-free liquid accelerator and stablizes
Property difference feature, extraordinary stability can be kept under conditions of -15～30 DEG C, storage time is long.
(2) the high stable type alkali-free chlorine-free liquid accelerator of present invention preparation overcomes current alkali-free liquid accelerator early stage
The defect of low strength, and later strength free of losses.The later stage compressive strength rate mixing the glue sand test block after this accelerator is not mixed
Plus the later strength of the glue sand test block of accelerator (blank sample) is high, that is, alkali-free chlorine-free accelerator of the present invention is not only strong to the later stage
Degree no affects, on the contrary also facilitation.For promotion gunite concrete industry to high benefit, high-quality, high-adaptability, low energy
Consumption, the direction of high-durability develop tool significance and practical value.
Specific embodiment
With reference to embodiment, the present invention is described in further detail
Embodiment 1
The preferred embodiment of the present invention 1 provides a kind of high stable type alkali-free chlorine-free liquid accelerating agent, by following parts by weight
Raw material components form: 47 parts of Patent alum, 3.5 parts of sodium fluoride, 44.2 parts of deionized water, 1 part of Tween-20,18- crown-
6 0.5 parts and 2 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, 0.2 part of the aqueous solution of polyacrylamide (molecular weight 5,000,000), diethanol amine 0.6
Part, 85% phosphatase 11 part.
The present embodiment also provides the preparation method of above-mentioned high stable type alkali-free chlorine-free liquid accelerating agent simultaneously, particularly as follows:
At 75 DEG C, first 47 parts of Patent alums and 3.5 parts of sodium fluorides are dissolved in 44.2 parts of deionized waters, dissolving is completely
Afterwards, add 1 part of Tween-20, stirring reaction 0.5h, be subsequently adding 0.5 part of 18- crown- 6 and 2 parts of 1-hydroxy ethylidene-1,1-diphosphonic acids, stirring is anti-
Answer 1.5h, be subsequently adding the aqueous solution (mass concentration be 5%) of 0.2 part of polyacrylamide and 0.6 part of diethanol amine, stir
15min, is then cooled to 50 DEG C, adds 1 part of 85% phosphoric acid, stirs 15min, obtains light yellow viscous liquid, as high stable
Type alkali-free chlorine-free liquid accelerating agent.Numbering lysa-1.
Embodiment 2
The preferred embodiment of the present invention 2 provides a kind of high stable type alkali-free chlorine-free liquid accelerating agent, by following parts by weight
Raw material components form: 50 parts of Patent alum, 5 parts of magnesium sulfate, 35.3 parts of deionized water, 2 parts of Tween-80,18- crown- 6
2 parts, 3 parts of ATMP, 0.4 part of the aqueous solution of polyacrylamide (molecular weight 8,000,000), 0.8 part of triethanolamine, to first
1.5 parts of base benzene sulfonic acid.
The present embodiment also provides the preparation method of above-mentioned high stable type alkali-free chlorine-free liquid accelerating agent simultaneously, particularly as follows:
At 80 DEG C, first 50 parts of Patent alums and 5 parts of magnesium sulfate are dissolved in 35.3 parts of deionized waters, after dissolving completely,
Add 2 parts of Tween-80s, stirring reaction 1h, be subsequently adding 2 parts of 18- crown-s 6 and 3 parts of ATMPs, stirring reaction 2h, so
Add the aqueous solution (mass concentration is 6%) and 0.8 part of triethanolamine, the stirring 25min of 0.4 part of polyacrylamide afterwards, then drop
Temperature, to 60 DEG C, adds 1.5 parts of p-methyl benzenesulfonic acids, stirs 25min, obtains pale green viscous liquid, as high stable type alkali-free
No chlorine liquid accelerating agent.Numbering lysa-2.
Embodiment 3
The preferred embodiment of the present invention 3 provides a kind of high stable type alkali-free chlorine-free liquid accelerating agent, by following parts by weight
Raw material components form: 55 parts of Patent alum, 6 parts of ferrous sulfate, 30.15 parts of deionized water, 1 part of Tween-20, and tween-
80 1 parts, 1 part of 1-hydroxy ethylidene-1,1-diphosphonic acid, 3 parts of ATMP, the aqueous solution of polyacrylamide (molecular weight 10,000,000)
0.6 part, 1 part of diethanol monoisopropanolamine, 1.25 parts of p-methyl benzenesulfonic acid.
The present embodiment also provides the preparation method of above-mentioned high stable type alkali-free chlorine-free liquid accelerating agent simultaneously, particularly as follows:
At 85 DEG C, first 55 parts of Patent alums and 6 parts of ferrous sulfate are dissolved in 30.15 parts of deionized waters, dissolving is completely
Afterwards, add 1 part of Tween-20 and 1 part of Tween-80, stirring reaction 1h, be subsequently adding 1 part of 1-hydroxy ethylidene-1,1-diphosphonic acid and 3 parts of amino three
Methylenephosphonic acid, stirring reaction 2.5h, it is subsequently adding the aqueous solution (mass concentration be 8%) of 0.6 part of polyacrylamide and 1 part of diethyl
Alcohol monoisopropanolamine, stirs 30min, is then cooled to 55 DEG C, adds 1.25 parts of p-methyl benzenesulfonic acids, stirs 30min, obtains light
Yellow viscous liquid, as high stable type alkali-free chlorine-free liquid accelerating agent.Numbering lysa-3.
Embodiment 4
The preferred embodiment of the present invention 4 provides a kind of high stable type alkali-free chlorine-free liquid accelerating agent, by following parts by weight
Raw material components form: 49 parts of Patent alum, 4 parts of sodium fluoride, 37.45 parts of deionized water, 2 parts of Tween-80, hydroxyl second
2 parts of diphosphonic acid of fork, 3 parts of ATMP, 0.6 part of the aqueous solution of polyethylene glycol (molecular weight 4000), diethanol amine 0.3
Part, 0.5 part of triethanolamine, 85% phosphatase 11 .35 part.
The present embodiment also provides the preparation method of above-mentioned high stable type alkali-free chlorine-free liquid accelerating agent simultaneously, particularly as follows:
At 90 DEG C, first 49 parts of Patent alums and 4 parts of sodium fluorides are dissolved in 37.45 parts of deionized waters, after dissolving completely,
Add 2 parts of Tween-80s, stirring reaction 0.5h, be subsequently adding 2 parts of 1-hydroxy ethylidene-1,1-diphosphonic acids and 3 parts of ATMPs, stirring
Reaction 1.5h, is subsequently adding the aqueous solution (mass concentration is 8.5%) and 0.3 part of diethanol amine and 0.5 part of 0.4 part of polyethylene glycol
Triethanolamine, stirs 20min, is then cooled to 55 DEG C, adds 1.35 part of 85% phosphoric acid, stirs 20min, obtains pale green viscous
Liquid, as high stable type alkali-free chlorine-free liquid accelerating agent.Numbering lysa-4.
Embodiment 5
The preferred embodiment of the present invention 5 provides a kind of high stable type alkali-free chlorine-free liquid accelerating agent, by following parts by weight
Raw material components form: 53 parts of Patent alum, 6 parts of ANN aluminium nitrate nonahydrate, 32.5 parts of deionized water, 3 parts of Tween-20,
62 parts of 18- crown-, 1 part of ATMP, 0.6 part of the aqueous solution of polyacrylamide (molecular weight 8,000,000), diethanol amine
0.6 part, 0.4 part of diethanol amine list isopropanol, 1 part of p-methyl benzenesulfonic acid.
The present embodiment also provides the preparation method of above-mentioned high stable type alkali-free chlorine-free liquid accelerating agent simultaneously, particularly as follows:
At 80 DEG C, first 53 parts of Patent alums and 6 parts of ANN aluminium nitrate nonahydrates are dissolved in 32.5 parts of deionizations
In water, after dissolving completely, add 3 parts of Tween-20s, stirring reaction 1h, be subsequently adding 2 parts of 18- crown-s 6 and 1 part of amino three methene phosphine
Acid, stirring reaction 2.5h, it is subsequently adding the aqueous solution (mass concentration be 9%) of 0.6 part of polyacrylamide and 0.5 part of diethanol amine
Press with 0.4 part of diethanol amine list isopropanol, stir 20min, be then cooled to 60 DEG C, add 1 part of p-methyl benzenesulfonic acid, stirring
20min, obtains light yellow viscous liquid, as high stable type alkali-free chlorine-free liquid accelerating agent.Numbering lysa-5.
Embodiment 6
The preferred embodiment of the present invention 6 provides a kind of high stable type alkali-free chlorine-free liquid accelerating agent, by following parts by weight
Raw material components form: 50 parts of Patent alum, 5 parts of ferrous sulfate, 36.5 parts of deionized water, 2 parts of Tween-20, and tween-
80 1 parts, 62 parts of 18- crown-, 1 part of 1-hydroxy ethylidene-1,1-diphosphonic acid, 0.2 part of the aqueous solution of polyethylene glycol (molecular weight 4000), three ethanol
0.4 part of amine, 0.4 part of diethanol amine list isopropanol, 1.5 parts of p-methyl benzenesulfonic acid.
The present embodiment also provides the preparation method of above-mentioned high stable type alkali-free chlorine-free liquid accelerating agent simultaneously, particularly as follows:
At 85 DEG C, first 50 parts of Patent alums and 5 parts of ferrous sulfate are dissolved in 36.5 parts of deionized waters, dissolving is completely
Afterwards, add 2 parts of Tween-20s and 1 part of Tween-80, stirring reaction 0.5h, be subsequently adding 2 parts of 18- crown-s 6 and 1 part of hydroxy ethylidene two
Phosphoric acid, stirring reaction 2h, be subsequently adding 0.2 part of polyethylene glycol (molecular weight 4000) the aqueous solution (mass concentration be 9.5%) and
0.4 part of triethanolamine and 0.4 part of diethanol monoisopropanolamine, stir 30min, are then cooled to 60 DEG C, add 1.5 parts to methyl
Benzene sulfonic acid, stirs 15min, obtains pale green viscous liquid, as high stable type alkali-free chlorine-free liquid accelerating agent.Numbering lysa-
6.
Embodiment 7
The preferred embodiment of the present invention 7 provides a kind of high stable type alkali-free chlorine-free liquid accelerating agent, by following parts by weight
Raw material components form: 55 parts of Patent alum, 4 parts of magnesium sulfate, 33.2 parts of deionized water, 2 parts of Tween-80, amino front three
1 part of phosphonic acids of fork, 2 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid, 0.6 part of the aqueous solution of polyacrylamide (molecular weight 10,000,000), diethanol amine 0.3
Part, 0.2 part of triethanolamine, 0.2 part of diethanol amine list isopropanol, 85% phosphatase 11 .5 part.
The present embodiment also provides the preparation method of above-mentioned high stable type alkali-free chlorine-free liquid accelerating agent simultaneously, particularly as follows:
At 75 DEG C, first 55 parts of Patent alums and 4 parts of magnesium sulfate are dissolved in 33.2 parts of deionized waters, after dissolving completely,
Add 2 parts of Tween-80s, stirring reaction 1h, be subsequently adding 1 part of ATMP and 2 parts of 1-hydroxy ethylidene-1,1-diphosphonic acids, stirring is anti-
Answer 2h, be subsequently adding the aqueous solution (mass concentration be 10%) of 0.6 part of polyacrylamide and 0.3 part of diethanol amine, 0.2 part of three second
Hydramine and 0.2 part of diethanol monoisopropanolamine, stir 15min, are then cooled to 50 DEG C, add 1.5 part of 85% phosphoric acid, stirring
30min, obtains light yellow viscous liquid, as high stable type alkali-free chlorine-free liquid accelerating agent.Numbering lysa-7.
Comparative example 1
Comparative example 1 of the present invention provides a kind of alkali-free chlorine-free liquid accelerating agent, is made up of the raw material components of following parts by weight:
50 parts of Patent alum, 4 parts of magnesium sulfate, 4 parts of disodium ethylene diamine tetraacetate, 33.5 parts of deionized water, 5 parts of diethanol amine,
2 parts of glycerine, 85% phosphatase 11 .5 part.
The preparation method of above-mentioned alkali-free chlorine-free liquid accelerating agent is: at 75 DEG C, first by 50 parts of Patent alums,
4 parts of magnesium sulfate and 4 parts of disodium ethylene diamine tetraacetates are dissolved in 33.5 parts of deionized waters, after dissolving completely, add 5 parts of diethanol
Amine and 2 parts of glycerine, stirring reaction 2.5h, are subsequently adding 1.5 part of 85% phosphoric acid, stir 30min, obtain faint yellow viscous fluid
Body, as alkali-free chlorine-free liquid accelerating agent.Numbering dbsa-1.
Comparative example 2
Comparative example 2 of the present invention provides a kind of alkali-free chlorine-free liquid accelerating agent, is made up of the raw material components of following parts by weight:
50 parts of Patent alum, 5 parts of magnesium sulfate, 3 parts of disodium ethylene diamine tetraacetate, 33 parts of deionized water, 5 parts of triethanolamine, third
2 parts of triol, 2 parts of 85% phosphoric acid.
The preparation method of above-mentioned alkali-free chlorine-free liquid accelerating agent is: at 80 DEG C, first by 50 parts of Patent alums,
5 parts of magnesium sulfate and 3 parts of disodium ethylene diamine tetraacetates are dissolved in 33 parts of deionized waters, after dissolving completely, add 5 parts of triethanolamines
With 2 parts of glycerine, stirring reaction 2.5h, it is subsequently adding 2 part of 85% phosphoric acid, stir 30min, obtain light yellow viscous liquid, that is,
For alkali-free chlorine-free liquid accelerating agent.Numbering dbsa-2.
Implementation result:
It is gelling that test determines embodiment and comparative example volume according to jc 477-2005 " gunite concrete accelerator "
When the 5% of material, 6% and 7%, the situation of change of its setting time, 1d glue sand compression strength and 28d glue sand compressive strength rate and
The stability of its accelerator at different temperatures.Its specific test result is shown in Table 1 and 2.
The different alkali-free liquid accelerator experimental result (reference cement) of table 1
Under table 2 different temperatures alkali-free liquid accelerator produce precipitation time (my god)
| Sample number into spectrum | -15℃ | 0℃ | 20℃ |
| lysa-1 | 105 | 235 | 325 |
| lysa-2 | 135 | 230 | 330 |
| lysa-3 | 155 | 220 | 360 |
| lysa-4 | 123 | 275 | 330 |
| lysa-5 | 140 | 244 | 352 |
| lysa-6 | 155 | 200 | 340 |
| lysa-7 | 135 | 230 | 342 |
| dbsa-1 | 5 | 15 | 20 |
| dbsa-2 | 9 | 16 | 25 |
Can be seen that and high stable type alkali-free chlorine-free liquid is being prepared using the new complex system of the present invention from table 1,2 data
During accelerator, compared with the alkali-free liquid accelerator of commonsense method preparation, its volume is little, and its stability and 1d compression strength
All than the alkali-free liquid accelerator of common law preparation, there is obvious advantage.
Above-described only the preferred embodiments of the present invention, the explanation of should be understood that above example is to use
In help understand the method for the present invention and its core concept, the protection domain being not intended to limit the present invention, all the present invention's
Any modification of being made within thought and principle, equivalent etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of high stable type alkali-free chlorine-free liquid accelerating agent is it is characterised in that be made up of the raw material components of following parts by weight:
Rapid hardening component 47-55 part, inorganic accelerating component 3.5-6 part, deionized water 27.9-44.2 part, solubility enhancing component 1-3 part, complexing group
Divide 2.5-5 part, thickener component aqueous solution 0.2-0.6 part, organic accelerating component 0.6-1 part, ph adjusts component 1-1.5 part.
2. a kind of high stable type alkali-free chlorine-free liquid accelerating agent according to claim 1 it is characterised in that: described rapid hardening group
It is divided into Patent alum.
3. a kind of high stable type alkali-free chlorine-free liquid accelerating agent according to claim 1 it is characterised in that: described inorganic morning
Strong group is divided into one of ANN aluminium nitrate nonahydrate, sodium fluoride, magnesium sulfate, ferrous sulfate.
4. a kind of high stable type alkali-free chlorine-free liquid accelerating agent according to claim 1 it is characterised in that: described solubilising group
It is divided into one of Tween-20, Tween-80 or two kinds.
5. a kind of high stable type alkali-free chlorine-free liquid accelerating agent according to claim 1 it is characterised in that: described complexing group
It is divided into two kinds in 18- crown- 6,1-hydroxy ethylidene-1,1-diphosphonic acid, ATMP.
6. a kind of high stable type alkali-free chlorine-free liquid accelerating agent according to claim 1 it is characterised in that: described thickening group
It is divided into one of polyacrylamide, polyethylene glycol；Described polyacrylamide is molecular weight 5,000,000-1,000 ten thousand；Polyethylene glycol divides
Son is measured as 4000.
7. a kind of high stable type alkali-free chlorine-free liquid accelerating agent according to claim 1 it is characterised in that: described thickening group
Aqueous solution mass concentration is divided to be 5-10%.
8. a kind of high stable type alkali-free chlorine-free liquid accelerating agent according to claim 1 it is characterised in that: described organic morning
Strong group is divided into one or more of diethanol amine, triethanolamine, diethanol monoisopropanolamine.
9. a kind of high stable type alkali-free chlorine-free liquid accelerating agent according to claim 1 it is characterised in that: described ph is adjusted
Group is divided into one of 85% phosphoric acid, p-methyl benzenesulfonic acid.
10. a kind of method preparing the arbitrary described high stable type alkali-free chlorine-free liquid accelerating agent of claim 1 to 9, its feature exists
In the following steps including carrying out in order:
S1., at 75 DEG C -90 DEG C, first the rapid hardening component of corresponding weight portion and inorganic accelerating component are dissolved in deionized water
In, dissolving is completely；
S2. solubility enhancing component, stirring reaction 0.5-1h are added；
S3. complexing components, stirring reaction 1.5-2.5h are added；
S4. add the thickener component aqueous solution and organic accelerating component, stir 15-30min；
S5. it is cooled to 50-60 DEG C, add ph to adjust component, stir 15-30min, finally give faint yellow or pale green viscous liquid
Body, as described high stable type alkali-free chlorine-free liquid accelerating agent.
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| CN112707665B (en) * | 2019-11-19 | 2022-07-05 | 陕西科之杰新材料有限公司 | Aluminum sulfate alkali-free liquid accelerator and preparation method thereof |
| CN112608065A (en) * | 2019-12-13 | 2021-04-06 | 科之杰新材料集团(贵州)有限公司 | Liquid alkali-free accelerator for sprayed concrete and preparation method thereof |
| CN112608065B (en) * | 2019-12-13 | 2022-07-15 | 科之杰新材料集团(贵州)有限公司 | Liquid alkali-free accelerator for sprayed concrete and preparation method thereof |
| CN111574093A (en) * | 2020-05-22 | 2020-08-25 | 山西海裕隆建材有限公司 | High-performance alkali-free liquid accelerator and preparation method thereof |
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| CN115403294A (en) * | 2022-09-01 | 2022-11-29 | 中国科学院兰州化学物理研究所 | High-stability alkali-free chlorine-free fluorine-free liquid accelerator and preparation method thereof |
| CN115636615A (en) * | 2022-11-04 | 2023-01-24 | 中南大学 | Alkali-free chlorine-free fluorine-free early strength type liquid accelerator and preparation method thereof |
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