CN108358494A - A kind of liquid alkali-free quick-coagulant and preparation method thereof - Google Patents
A kind of liquid alkali-free quick-coagulant and preparation method thereof Download PDFInfo
- Publication number
- CN108358494A CN108358494A CN201810174062.2A CN201810174062A CN108358494A CN 108358494 A CN108358494 A CN 108358494A CN 201810174062 A CN201810174062 A CN 201810174062A CN 108358494 A CN108358494 A CN 108358494A
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- Prior art keywords
- liquid alkali
- coagulant
- free quick
- aluminum sulfate
- preparation
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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
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
The present invention relates to a kind of liquid alkali-free quick-coagulant and preparation method thereof, raw material compositions：Aluminum sulfate 45% 50%, sodium metaaluminate 1% 2%, magnesium fluosilicate 2% 2.5%, triethanolamine 2.5% 3.5%, ethylenediamine tetra-acetic acid 3% 4%, antifoaming agent 0.1% 0.3%, water is surplus；It is weighed by formula institute expense, it first adds water in reaction kettle, is heated to 80 DEG C 85 DEG C, it is lasting to stir, aluminum sulfate, magnesium fluosilicate, triethanolamine, ethylenediamine tetra-acetic acid are sequentially added every 4min 5min, it is persistently stirred to react 1h, is slowly added to sodium metaaluminate, then persistently stirring 30min 40min, antifoaming agent is added, natural cooling adjusts solution ph, ultimately forms finished product.A kind of alkali-free for being prepared using the method for the present invention is had no irritating odor, the gunite concrete accelerator that stability is good, volume is low, rebound degree is low, later strength fraction is high, especially suitable for construction usages such as culvert, bridge, underground engineerings.
Description
Technical field
The invention belongs to building material fields, and in particular to a kind of gunite concrete liquid alkali-free quick-coagulant and its preparation
Method.
Background technology
Concrete accelerator is the additive that concrete can be made to condense hardening rapidly, accelerator be mainly used for mine well item,
Railway tunnel, diversion culvert, underground engineering.To have alkali, based on powder, this kind of accelerator has stronger traditional accelerator product
Corrosivity, seriously affects the later strength and anti-carbonation of concrete at the problems such as causing alkali-aggregate reaction in concrete, steel bar corrosion
The health of durability, damage production and construction personnel.
It solves these problems it is necessary to reduce or remove the alkaline matter in accelerator, therefore develops liquid alkali-free rapid hardening
Agent is just at inexorable trend.
Through retrieval, the raw materials preparation solution such as aluminum sulfate, sodium metaaluminate, magnesium fluosilicate, triethanolamine, ethylenediamine tetra-acetic acid is utilized
State alkali-free quick-coagulant, still belongs to the first time at home.
Invention content
The object of the present invention is to provide a kind of rapid hardening effect that can reach traditional accelerator and reduce to human injury
Liquid alkali-free quick-coagulant and preparation method thereof.
To achieve the goals above, the present invention is achieved through the following technical solutions：The present invention provides a kind of liquid alkali-frees
Accelerator, the liquid alkali-free quick-coagulant raw material is by aluminum sulfate, sodium metaaluminate, magnesium fluosilicate, triethanolamine, ethylenediamine tetrem
Acid, antifoaming agent and water composition；The mass percent of the raw material composition is as follows：
Aluminum sulfate 45% -50%
Sodium metaaluminate 1% -2%
Magnesium fluosilicate 2% -2.5%
Triethanolamine 2.5% -3.5%
Ethylenediamine tetra-acetic acid 3% -4%
Antifoaming agent 0.1% -0.3%
Remaining is water, and gross mass percentage meets 100%.
By facts have proved that the preferable mass percent of above-mentioned liquid alkali-free quick-coagulant each component is：
Aluminum sulfate 48%
Sodium metaaluminate 1.6%
Magnesium fluosilicate 2.4%
Triethanolamine 2.8%
Ethylenediamine tetra-acetic acid 3.2%
Antifoaming agent 0.2%
Water 41.8%.
The preparation method of liquid alkali-free quick-coagulant proposed by the present invention, is as follows：、
It weighs by raw material proportioning, first adds water in reaction kettle, be heated to 80 DEG C -85 DEG C, it is lasting to stir, every 4min -
5min sequentially adds aluminum sulfate, magnesium fluosilicate, triethanolamine and ethylenediamine tetra-acetic acid, then is persistently stirred to react 50-70 minutes,
It is slowly added to sodium metaaluminate, then persistently stirs 30min -40min, antifoaming agent is added, natural cooling is added pH adjusting agent, makes
Solution ph is 5-6, ultimately forms finished product.
In the present invention, the aluminum sulfate selects industrial raw material, to reduce the cost of raw material.
In the present invention, the antifoaming agent is the combination of one or both of fatty acid glyceride, glycerine.
In the present invention, the pH adjusting agent is ammonium hydroxide.
In the present invention, the rate when stirring is 600r/min -800r/min.
The beneficial effects of the present invention are：Liquid alkali-free quick-coagulant of the present invention is yellowish or milky uniform liquid, close
Degree is 1.3g/cm3 - 1.4g/cm3, alkali-free, have no irritating odor, stability is good, volume is low, rebound degree is low, later strength protect
Card rate is high, overcomes the shortcomings of traditional accelerator corrosivity is strong, later strength loss is big, and simple production process, former material
Expect it is at low cost, it is suitable for mass production.
Specific implementation mode
To keep the purpose of the present invention, technical solution and technique effect clearer, with reference to the specific embodiment of the invention,
Technical scheme in the embodiment of the invention is clearly and completely described, but following embodiment should not be understood as to the present invention
Can practical range restriction, based on the embodiments of the present invention, those of ordinary skill in the art are not making creative labor
The every other embodiment obtained under the premise of dynamic, shall fall within the protection scope of the present invention.
Embodiment 1, a kind of liquid alkali-free quick-coagulant are by the mass percent of each component：Aluminum sulfate 45%, sodium metaaluminate
1%, magnesium fluosilicate 2%, triethanolamine 2.5%, ethylenediamine tetra-acetic acid 3%, antifoaming agent 0.1%, water 46.5%, the sum of each component is
100%.The performance test results are shown in Table 1.
Embodiment 2, a kind of liquid alkali-free quick-coagulant are by the mass percent of each component：Aluminum sulfate 48%, sodium metaaluminate
1.6%, magnesium fluosilicate 2.4%, triethanolamine 2.8%, ethylenediamine tetra-acetic acid 3.2%, antifoaming agent 0.2%, water 41.8%, the sum of each component
It is 100%.The performance test results are shown in Table 1.
Embodiment 3, a kind of liquid alkali-free quick-coagulant are by the mass percent of each component：Aluminum sulfate 50%, sodium metaaluminate
2%, magnesium fluosilicate 2.5%, triethanolamine 3.5%, ethylenediamine tetra-acetic acid 4%, antifoaming agent 0.3%, water 38%, the sum of each component is
100%.The performance test results are shown in Table 1.
1 embodiment the performance test results of table
Claims (7)
1. a kind of liquid alkali-free quick-coagulant, it is characterised in that：Raw material by aluminum sulfate, sodium metaaluminate, magnesium fluosilicate, triethanolamine,
Ethylenediamine tetra-acetic acid, antifoaming agent and water composition；The mass percent of the raw material composition is as follows：
Aluminum sulfate 45% -50%
Sodium metaaluminate 1% -2%
Magnesium fluosilicate 2% -2.5%
Triethanolamine 2.5% -3.5%
Ethylenediamine tetra-acetic acid 3% -4%
Antifoaming agent 0.1% -0.3%
Remaining is water, and gross mass percentage meets 100%.
2. liquid alkali-free quick-coagulant according to claim 1, it is characterised in that：The mass percent of each component is：
Aluminum sulfate 48%
Sodium metaaluminate 1.6%
Magnesium fluosilicate 2.4%
Triethanolamine 2.8%
Ethylenediamine tetra-acetic acid 3.2%
Antifoaming agent 0.2%
Water 41.8%.
3. a kind of preparation method of liquid alkali-free quick-coagulant as described in claim 1, it is characterised in that be as follows：
It weighs by raw material proportioning, first adds water in reaction kettle, be heated to 80 DEG C -85 DEG C, it is lasting to stir, every 4min-5min
Aluminum sulfate, magnesium fluosilicate, triethanolamine, ethylenediamine tetra-acetic acid are sequentially added, then is persistently stirred to react 50-70 minutes, is slowly added
Enter sodium metaaluminate, then persistently stir 30min -40min, antifoaming agent is added, natural cooling is added pH adjusting agent, makes pH value of solution
Value ultimately forms finished product between 5-6.
4. the preparation method of liquid alkali-free quick-coagulant according to claim 3, it is characterised in that：The aluminum sulfate selects work
Industry grade raw material.
5. the preparation method of liquid alkali-free quick-coagulant according to claim 3, it is characterised in that：The antifoaming agent is sweet
One or both of oil and fat acid esters, glycerine combine.
6. the preparation method of liquid alkali-free quick-coagulant according to claim 3, it is characterised in that：The pH adjusting agent is
Ammonium hydroxide.
7. the preparation method of liquid alkali-free quick-coagulant according to claim 3, it is characterised in that：The rate when stirring
For 600r/min -800r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810174062.2A CN108358494A (en) | 2018-03-02 | 2018-03-02 | A kind of liquid alkali-free quick-coagulant and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810174062.2A CN108358494A (en) | 2018-03-02 | 2018-03-02 | A kind of liquid alkali-free quick-coagulant and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108358494A true CN108358494A (en) | 2018-08-03 |
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ID=63003469
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810174062.2A Pending CN108358494A (en) | 2018-03-02 | 2018-03-02 | A kind of liquid alkali-free quick-coagulant and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109761527A (en) * | 2019-02-21 | 2019-05-17 | 北京市建筑工程研究院有限责任公司 | A kind of bi-component accelerator and preparation method thereof |
| CN110117166A (en) * | 2019-05-23 | 2019-08-13 | 杭州砺品科技有限公司 | A kind of concrete admixture and its preparation method and application method |
| CN110963821A (en) * | 2019-12-25 | 2020-04-07 | 云南凯威特新材料股份有限公司 | Alkali-free concrete surface protective agent and preparation method thereof |
| CN111908819A (en) * | 2020-06-18 | 2020-11-10 | 贵州石博士科技有限公司 | Liquid alkali-free accelerator and preparation method thereof |
| CN113060963A (en) * | 2021-04-12 | 2021-07-02 | 中国矿业大学(北京) | Liquid accelerator and preparation method and application thereof |
| CN114057422A (en) * | 2021-12-22 | 2022-02-18 | 云南云天化股份有限公司 | Alkali-free fluorine-free chlorine-free liquid concrete accelerator and preparation method thereof |
| CN114230218A (en) * | 2021-11-26 | 2022-03-25 | 光明铁道控股有限公司 | Concrete additive with coagulation promoting effect and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102923988A (en) * | 2012-11-29 | 2013-02-13 | 北京冶建特种材料有限公司 | Liquid alkali-free chloride-free accelerating agent as well as methods for preparing and using same |
-
2018
- 2018-03-02 CN CN201810174062.2A patent/CN108358494A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102923988A (en) * | 2012-11-29 | 2013-02-13 | 北京冶建特种材料有限公司 | Liquid alkali-free chloride-free accelerating agent as well as methods for preparing and using same |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109761527A (en) * | 2019-02-21 | 2019-05-17 | 北京市建筑工程研究院有限责任公司 | A kind of bi-component accelerator and preparation method thereof |
| CN110117166A (en) * | 2019-05-23 | 2019-08-13 | 杭州砺品科技有限公司 | A kind of concrete admixture and its preparation method and application method |
| CN110117166B (en) * | 2019-05-23 | 2021-08-10 | 杭州砺品科技有限公司 | Concrete admixture and preparation method and application method thereof |
| CN110963821A (en) * | 2019-12-25 | 2020-04-07 | 云南凯威特新材料股份有限公司 | Alkali-free concrete surface protective agent and preparation method thereof |
| CN110963821B (en) * | 2019-12-25 | 2022-02-08 | 云南凯威特新材料股份有限公司 | Alkali-free concrete surface protective agent and preparation method thereof |
| CN111908819A (en) * | 2020-06-18 | 2020-11-10 | 贵州石博士科技有限公司 | Liquid alkali-free accelerator and preparation method thereof |
| CN113060963A (en) * | 2021-04-12 | 2021-07-02 | 中国矿业大学(北京) | Liquid accelerator and preparation method and application thereof |
| CN114230218A (en) * | 2021-11-26 | 2022-03-25 | 光明铁道控股有限公司 | Concrete additive with coagulation promoting effect and preparation method thereof |
| CN114230218B (en) * | 2021-11-26 | 2022-09-27 | 光明铁道控股有限公司 | Concrete additive with coagulation promoting effect and preparation method thereof |
| CN114057422A (en) * | 2021-12-22 | 2022-02-18 | 云南云天化股份有限公司 | Alkali-free fluorine-free chlorine-free liquid concrete accelerator and preparation method thereof |
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Application publication date: 20180803 |