CN108314349A - A kind of accelerator suitable for sulphate aluminium cement - Google Patents
A kind of accelerator suitable for sulphate aluminium cement Download PDFInfo
- Publication number
- CN108314349A CN108314349A CN201810254013.XA CN201810254013A CN108314349A CN 108314349 A CN108314349 A CN 108314349A CN 201810254013 A CN201810254013 A CN 201810254013A CN 108314349 A CN108314349 A CN 108314349A
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- CN
- China
- Prior art keywords
- cement
- sulphate aluminium
- accelerator
- water
- aluminium cement
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Classifications
-
- 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)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention provides the accelerator suitable for sulphate aluminium cement, the cement hardener includes following component：Lithium hydroxide, triethanolamine, polyacrylamide and water, the present invention is compounded with the lithium hydroxide, triethanolamine, polyacrylamide of different quality containing, the liquid accelerator soluble in water being configured to suitable for sulphate aluminium cement, while accelerating sulphate aluminium cement cement solidification, later strength retention rate reaches 85% or more for it.
Description
Technical field
The present invention relates to concrete admixture fields, especially a kind of accelerator suitable for sulphate aluminium cement.
Background technology
In the concrete construction of engineering construction, other than the intensity to concrete has higher requirements, for its construction
Performance is also required to higher requirement, and especially busy section construction is often required that and be can be used.Accelerator can increase cement and water
Between the initial velocity that reacts, to the additive for making concrete rapid condensation harden.There are many type of accelerator, by its mainly at
Divide and is broadly divided into following a few classes：
Aluminum oxide clinker adds carbonate system, aluminium sulfate system, waterglass system, low alkali alkali-free quick-coagulant, predominantly soluble tree
Accelerator made of polyacrylic acid, polymethylacrylic acid, hydroxylamine of fat etc..
Accelerator, early strength agent now in the market is generally suitable for Portland cement, the speed in sulphate aluminium cement
Solidifying agent is generally lithium salts.
Water-soluble accelerator is generally only applicable to Portland cement, to the effect unobvious of sulphate aluminium cement,
And the accelerator first of salts should not be dissolved in water, second its effect should not control, while after reducing sulphate aluminium cement
Phase intensity.
In addition it is aluminium sulfate to also have traditional alkali-free liquid accelerator, main component, due to its price height, blending amount
Greatly, intensity is low, is widely used to affect it, and traditional Liquid Aluminate Accelerating Additive ingredient is single, can not obtain wide
General use.
Invention content
For the deficiencies in the prior art, the object of the present invention is to provide a kind of cement hardeners, are suitable for sulphur aluminium
Acid salt cement is compounded with lithium hydroxide, triethanolamine, polyacrylamide, soluble in water to be configured to be suitable for aluminium sulfate
The liquid accelerator of cement, while accelerating sulphate aluminium cement cement solidification, later strength retention rate reach 85% with
On.
In order to realize the object of the invention, the invention is realized by the following technical scheme：
A kind of accelerator suitable for sulphate aluminium cement, the cement hardener includes following component：Lithium hydroxide, three
Ethanol amine, polyacrylamide and water.
The mass fraction of the cement hardener each component is：The lithium hydroxide 5%-15%, triethanolamine 5%-
15%, polyacrylamide 0-0.5%, water 70%-90%.
The mass fraction of the cement hardener each component is：The lithium hydroxide 10%, triethanolamine 9.5%, poly- third
Acrylamide 0.5%, water 80%.
The mass fraction of the cement hardener each component is：The lithium hydroxide 15%, triethanolamine 14.5%, poly- third
Acrylamide 0.5%, water 70%.
The cement hardener mixes sulphate aluminium cement, and the volume of the cement hardener is the sulphate aluminium cement
The 0-5% of quality.
The cement hardener mixes sulphate aluminium cement, and the volume of the cement hardener is the sulphate aluminium cement
The 2.5% of quality.
Beneficial effects of the present invention：
The present invention is suitable for sulphate aluminium cement, with lithium hydroxide, triethanolamine, poly- third as a kind of cement hardener
Acrylamide is compounded, and the liquid accelerator soluble in water being configured to suitable for sulphate aluminium cement is accelerating aluminium sulfate
While cement cures, later strength retention rate reaches 85% or more.Strength retention ratio is high, is suitable for high grade sulphur aluminic acid
Brine cement concrete and mortar.
Specific implementation mode
The present invention is further elaborated below by way of specific embodiment.
Embodiment 1
The accelerator suitable for sulphate aluminium cement of the present embodiment is prepared,
(1) it weighs：
(2) lithium hydroxide, triethanolamine, polyacrylamide are uniformly mixed, after being dissolved in water, cement rapid hardening is made
Agent.
Performance test is according to JC477-2005《Gunite concrete accelerator》Experimental condition carry out, blending amount 2.5%.
Embodiment 2
The accelerator suitable for sulphate aluminium cement of the present embodiment is prepared,
(1) it weighs：
(2) lithium hydroxide, triethanolamine, polyacrylamide are uniformly mixed, after being dissolved in water, cement rapid hardening is made
Agent.
Embodiment 3
The accelerator suitable for sulphate aluminium cement of the present embodiment is prepared,
(1) it weighs：
(2) lithium hydroxide, triethanolamine, polyacrylamide are uniformly mixed, after being dissolved in water, cement rapid hardening is made
Agent.
Comparative example
Weigh 5KG aluminium hydroxides, 3 kilograms of sodium hydroxides, 0.01 kilogram of triethanolamine, 0.02 kilogram of sodium fluoride, 10 kilograms
Water mixes, and adds 0.25 kilogram of additive, and additive main component is sodium sulphate and β-benzene sulfonic acid sodium salt, and above-mentioned raw materials stirring is mixed
After even, place 2 hours at normal temperatures, obtain comparative example cement hardener.
Table 1 is according to JC477-2005《Gunite concrete accelerator》Experimental condition carry out, blending amount 2.5%.Property
It can test as follows：
As can be seen from the above Examples and Comparative Examples, it is compounded with lithium hydroxide, triethanolamine, polyacrylamide,
It is soluble in water to be configured to the cement solidifies under blending amount unanimous circumstances suitable for the liquid accelerator of sulphate aluminium cement
Time is obviously shorter than the time of comparative example cement hardener, and later stage compression strength is high.It can be widely applied to cement concrete and sand
Slurry.
A kind of cement hardener of the present invention is suitable for sulphate aluminium cement, with lithium hydroxide, triethanolamine, polypropylene
Amide is compounded, and the liquid accelerator soluble in water being configured to suitable for sulphate aluminium cement is accelerating aluminium sulfate water
While muddy water mud cures, later strength retention rate reaches 85% or more, and strength retention ratio is high, is suitable for high grade aluminium sulfate
Cement concrete and mortar.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art is in the technical scope of present disclosure, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (6)
1. a kind of accelerator suitable for sulphate aluminium cement, which is characterized in that the cement hardener includes following component：Hydrogen
Lithia, triethanolamine, polyacrylamide and water.
2. according to claim 1 be suitable for sulphate aluminium cement accelerator, which is characterized in that the cement hardener is each
The mass fraction of component is：Lithium hydroxide 5%-15%, triethanolamine 5%-15%, polyacrylamide 0-0.5%, water 70%-
90%.
3. according to claim 1 be suitable for sulphate aluminium cement accelerator, which is characterized in that the cement hardener is each
The mass fraction of component is：Lithium hydroxide 10%, triethanolamine 9.5%, polyacrylamide 0.5%, water 80%.
4. according to claim 1 be suitable for sulphate aluminium cement accelerator, which is characterized in that the cement hardener is each
The mass fraction of component is：Lithium hydroxide 15%, triethanolamine 14.5%, polyacrylamide 0.5%, water 70%.
5. according to claim 1 be suitable for sulphate aluminium cement accelerator, which is characterized in that the cement hardener is mixed
Enter sulphate aluminium cement, the volume of the cement hardener is the 0-5% of the sulphate aluminium cement quality.
6. according to claim 1 be suitable for sulphate aluminium cement accelerator, which is characterized in that the cement hardener is mixed
Enter sulphate aluminium cement, the volume of the cement hardener is the 2.5% of the sulphate aluminium cement quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810254013.XA CN108314349A (en) | 2018-03-26 | 2018-03-26 | A kind of accelerator suitable for sulphate aluminium cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810254013.XA CN108314349A (en) | 2018-03-26 | 2018-03-26 | A kind of accelerator suitable for sulphate aluminium cement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108314349A true CN108314349A (en) | 2018-07-24 |
Family
ID=62900204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810254013.XA Pending CN108314349A (en) | 2018-03-26 | 2018-03-26 | A kind of accelerator suitable for sulphate aluminium cement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108314349A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111943551A (en) * | 2019-05-17 | 2020-11-17 | 广东瑞铠实业发展有限公司 | Preparation method of alkali-free accelerator for concrete |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617066A (en) * | 2012-03-12 | 2012-08-01 | 清华大学 | Liquid accelerator for calcium-containing aluminosilicate cementing material and preparation method for liquid accelerator |
-
2018
- 2018-03-26 CN CN201810254013.XA patent/CN108314349A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617066A (en) * | 2012-03-12 | 2012-08-01 | 清华大学 | Liquid accelerator for calcium-containing aluminosilicate cementing material and preparation method for liquid accelerator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111943551A (en) * | 2019-05-17 | 2020-11-17 | 广东瑞铠实业发展有限公司 | Preparation method of alkali-free accelerator for concrete |
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