CN107640923A - A kind of additive for improving concrete strength and preparation method thereof - Google Patents
A kind of additive for improving concrete strength and preparation method thereof Download PDFInfo
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- CN107640923A CN107640923A CN201710855007.5A CN201710855007A CN107640923A CN 107640923 A CN107640923 A CN 107640923A CN 201710855007 A CN201710855007 A CN 201710855007A CN 107640923 A CN107640923 A CN 107640923A
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- additive
- concrete strength
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- rotating speed
- improving concrete
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Abstract
The invention discloses a kind of additive for improving concrete strength, it is made up of following material：2 ~ 3wt% of electroconductive resin；2 ~ 3wt% of thermoplastic resin；10 ~ 25wt% of pure acrylic latex；70 ~ 80wt% of hydroxypropyl cellulose；Polycarboxylic acid mother liquor：0.1~0.4wt%；1 ~ 5wt% of gas-phase silica；Above each component sum is 100%.The invention also discloses the preparation method of the additive of the raising concrete strength.The additive provided by the invention for improving concrete strength introduces electroconductive resin, electroconductive resin and thermoplastic resin interworking, antiseptic property far above the general additive for improving concrete strength is provided, possesses more excellent antiseptic effect after use, anti-corrosion life was up to more than 30 years；The addition of nanoscale polycarboxylic acid mother liquor compensate for the defects of concrete surface is not fine and close enough, can be that concrete belt carrys out more excellent matching performance, solve the problems, such as that concrete whipping process easily produces bubble, there is provided more excellent workability.
Description
Technical field
The present invention relates to a kind of additive for improving concrete strength and preparation method thereof.
Background technology
Concrete admixture is used for the engineering fields such as architectural engineering, science of bridge building, hydraulic engineering, municipal works, is to mix
Mixed during concrete processed, to improve the material of concrete performance, according to the regulation of Its Relevant Technology Standards, its incorporation
No more than the 5% of cement quality.The main function of concrete admixture is to improve the performance of fresh concrete and improve to harden coagulation
The performance of soil.Additive can effectively improve the performance of concrete, and have good economic benefit.In many countries all
To being widely applied, turn into material indispensable in concrete.The especially high-effect use for reducing agent.Cement particle can obtain
To sufficiently scattered, water consumption greatly reduces, and cement potential is not fully exerted, and causes Behavior of Hardened Cement Paste comparatively dense, pore structure and
Interface area micro-structural is improved well, so that the physical and mechanical property of concrete is greatly improved.
Therefore, exploitation is a kind of easy to operate, at the same Specifications for example adhesive force, resistance to neutral brine, resistance to neutral salt spray,
Resistance to artificial accelerated aging etc., the additive for showing excellent raising concrete strength is a urgent problem to be solved.
The content of the invention
The technical problem to be solved in the present invention is to overcome the defects of existing, there is provided a kind of both to have had good adhesive force and prevented
The performances such as corrosion, there is the additive of the raising concrete strength of good weatherability properties energy again.
In order to solve the above-mentioned technical problem, the invention provides following technical scheme：
A kind of additive for improving concrete strength of the present invention, it is made up of following material：
2 ~ 3wt% of electroconductive resin；
2 ~ 3wt% of thermoplastic resin；
10 ~ 25wt% of pure acrylic latex；
70 ~ 80wt% of hydroxypropyl cellulose, wherein, hydroxypropyl cellulose purity is more than 99%；
Polycarboxylic acid mother liquor： 0.1~0.4wt%；
1 ~ 5wt% of gas-phase silica；
Above each component sum is 100%.
Preferably, the thermoplastic resin is thermoplastic acrylic resin, thermoplastic poly carbonic ether, thermoplastic poly nylon tree
One or more in fat.
Preferably, the pure acrylic latex is propylene glycol monomethyl ether, dimethyl ester, n-butyl acetate, ethylene glycol monomethyl ether, second two
One or more in alcohol monobutyl ether acetate.
Preferably, the polycarboxylic acid mother liquor is anti-settling agent.
The invention also discloses a kind of preparation method for the additive for improving concrete strength, it comprises the following steps：
（1）The pure acrylic latex of 1/3 ~ 2/3 formula ratio is added into reactor；
（2）Mixer is started, adds polycarboxylic acid mother liquor, thermoplastic resin and the electroconductive resin of formula ratio, and is stirred；
（3）The hydroxypropyl cellulose of formula ratio is added, rise temperature is stirred to 50 ~ 60 DEG C, is dispersed to coating fineness at a high speed
≤35um；
（4）The rotating speed of mixer is reduced, remaining pure acrylic latex is added, stirs；
（5）The gas-phase silica of formula ratio is added, rotating speed is reduced, stirs, obtains the outer of described raising concrete strength
Add agent.
Preferably, in step（1）~（5）In, whole whipping process temperature control is below 60 DEG C.
Preferably, in step（2）In, mixer rotating speed is 400 ~ 600 revs/min, and mixing time is 70 ~ 80 minutes.
Preferably, in step（3）In, mixer rotating speed is 1100 ~ 1200 revs/min.
Preferably, in step（4）In, mixer rotating speed is 560 ~ 800 revs/min, and mixing time is 40 ~ 60 minutes.
Preferably, in step（5）In, mixer rotating speed is 250 ~ 500 revs/min, and mixing time is 40 ~ 60 minutes.
The beneficial effect that is reached of the present invention is：
（1）Introduce electroconductive resin, electroconductive resin and thermoplastic resin interworking, there is provided improve the outer of concrete strength far above general
Add the antiseptic property of agent, possess more excellent antiseptic effect after use, anti-corrosion life was up to more than 30 years；
（2）The addition of polycarboxylic acid mother liquor compensate for the defects of concrete surface is not fine and close enough, can be that concrete belt comes more
Excellent matching performance, solve the problems, such as that concrete whipping process easily produces bubble, there is provided more excellent workability.
Embodiment
The preferred embodiments of the present invention are illustrated below, it will be appreciated that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Embodiment 1
A kind of preparation method for the additive for improving concrete strength of the present invention, it comprises the following steps：
（1）4kg propylene glycol monomethyl ethers are added into reactor；
（2）Mixer is started, mixer rotating speed is 400 revs/min, adds anti-settling agent 0.1kg, thermoplastic acrylic resin 3kg
With electroconductive resin 3kg, and stir, mixing time is 80 minutes；
（3）80kg hydroxypropyl cellulose is added, rise temperature is stirred to 60 DEG C, and mixer rotating speed is 1100 revs/min
Clock, coating fineness is dispersed at a high speed and is less than 35um；
（4）The rotating speed of mixer is reduced to 800 revs/min, remaining 6kg propylene glycol monomethyl ethers is added, stirs, mixer rotating speed
For 560 revs/min, mixing time is 60 minutes；
（5）Gas-phase silica 3.9kg is added, rotating speed is reduced to 500 revs/min, stirs, mixing time is 60 minutes, is obtained
To the additive of described raising concrete strength.
Embodiment 2
A kind of preparation method for the additive for improving concrete strength of the present invention, it comprises the following steps：
（1）13kg propylene glycol monomethyl ethers are added into reactor；
（2）Mixer is started, mixer rotating speed is 600 revs/min, adds anti-settling agent 0.4kg, thermoplastic acrylic resin 2kg
With electroconductive resin 2kg, and stir, mixing time is 70 minutes；
（3）70kg hydroxypropyl cellulose is added, rise temperature is stirred to 50 DEG C, and mixer rotating speed is 1200 revs/min
Clock, coating fineness is dispersed at a high speed and is less than 35um；
（4）The rotating speed of mixer is reduced to 560 revs/min, remaining 10kg propylene glycol monomethyl ethers is added, stirs, mixing time
For 60 minutes；
（5）Gas-phase silica 2.6kg is added, rotating speed is reduced to 500 revs/min, stirs, mixing time is 60 minutes, is obtained
To the additive of described raising concrete strength.
It is each that test is designed as a comparison according to embodiment 1 and embodiment 2 and from additive conventional in the market
Item performance indications are as a result as follows：
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, although
The present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can be right
Technical scheme described in foregoing embodiments is modified, or carries out equivalent substitution to which part technical characteristic.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc., the protection of the present invention should be included in
Within the scope of.
Claims (8)
1. a kind of additive for improving concrete strength, it is characterised in that be made up of following material：
2 ~ 3wt% of electroconductive resin；
2 ~ 3wt% of thermoplastic resin；
10 ~ 25wt% of pure acrylic latex；
70 ~ 80wt% of hydroxypropyl cellulose, wherein, hydroxypropyl cellulose purity is more than 99%；
Polycarboxylic acid mother liquor： 0.1~0.4wt%；
1 ~ 5wt% of gas-phase silica；
Above each component sum is 100%.
A kind of 2. additive for improving concrete strength according to claim 1, it is characterised in that the thermoplastic resin
For the one or more in thermoplastic acrylic resin, thermoplastic poly carbonic ether, thermoplastic poly nylon resin.
A kind of 3. preparation method of the additive of raising concrete strength as described in claim 1 ~ 2 is any, it is characterised in that
Comprise the following steps：
（1）The pure acrylic latex of 1/3 ~ 2/3 formula ratio is added into reactor；
（2）Mixer is started, adds polycarboxylic acid mother liquor, thermoplastic resin and the electroconductive resin of formula ratio, and is stirred；
（3）The hydroxypropyl cellulose of formula ratio is added, rise temperature is stirred to 50 ~ 60 DEG C, is dispersed to coating fineness at a high speed
≤35um；
（4）The rotating speed of mixer is reduced, remaining mixed solvent is added, stirs；
（5）The gas-phase silica of formula ratio is added, rotating speed is reduced, stirs, obtains the outer of described raising concrete strength
Add agent.
4. the preparation method of a kind of additive for improving concrete strength according to claim 3, it is characterised in that in step
Suddenly（1）~（5）In, whole whipping process temperature control is below 60 DEG C.
5. the preparation method of a kind of additive for improving concrete strength according to claim 3, it is characterised in that in step
Suddenly（2）In, mixer rotating speed is 400 ~ 600 revs/min, and mixing time is 70 ~ 80 minutes.
6. the preparation method of a kind of additive for improving concrete strength according to claim 3, it is characterised in that in step
Suddenly（3）In, mixer rotating speed is 1100 ~ 1200 revs/min.
7. the preparation method of a kind of additive for improving concrete strength according to claim 3, it is characterised in that in step
Suddenly（4）In, mixer rotating speed is 560 ~ 800 revs/min, and mixing time is 40 ~ 60 minutes.
8. the preparation method of a kind of additive for improving concrete strength according to claim 3, it is characterised in that in step
Suddenly（5）In, mixer rotating speed is 250 ~ 500 revs/min, and mixing time is 40 ~ 60 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710855007.5A CN107640923A (en) | 2017-09-20 | 2017-09-20 | A kind of additive for improving concrete strength and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710855007.5A CN107640923A (en) | 2017-09-20 | 2017-09-20 | A kind of additive for improving concrete strength and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN107640923A true CN107640923A (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710855007.5A Withdrawn CN107640923A (en) | 2017-09-20 | 2017-09-20 | A kind of additive for improving concrete strength and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108249808A (en) * | 2018-02-01 | 2018-07-06 | 四川内师检验检测有限责任公司 | A kind of concrete admixture made using building castoff |
| CN109053017A (en) * | 2018-09-07 | 2018-12-21 | 江苏宇辉住宅工业有限公司 | A kind of concrete admixture made using waste |
| CN109437659A (en) * | 2018-12-08 | 2019-03-08 | 广州建研科技有限公司 | A kind of inorganic nano stoste |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104974611A (en) * | 2014-04-01 | 2015-10-14 | 无锡华东锌盾科技有限公司 | Cold spraying zinc coating and preparation method thereof |
-
2017
- 2017-09-20 CN CN201710855007.5A patent/CN107640923A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104974611A (en) * | 2014-04-01 | 2015-10-14 | 无锡华东锌盾科技有限公司 | Cold spraying zinc coating and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108249808A (en) * | 2018-02-01 | 2018-07-06 | 四川内师检验检测有限责任公司 | A kind of concrete admixture made using building castoff |
| CN109053017A (en) * | 2018-09-07 | 2018-12-21 | 江苏宇辉住宅工业有限公司 | A kind of concrete admixture made using waste |
| CN109437659A (en) * | 2018-12-08 | 2019-03-08 | 广州建研科技有限公司 | A kind of inorganic nano stoste |
| CN109437659B (en) * | 2018-12-08 | 2021-06-04 | 广州建研科技有限公司 | Inorganic nano stock solution |
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Application publication date: 20180130 |
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