CN102557515A - Anti-freezing agent for concretes - Google Patents
Anti-freezing agent for concretes Download PDFInfo
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- CN102557515A CN102557515A CN2012100614983A CN201210061498A CN102557515A CN 102557515 A CN102557515 A CN 102557515A CN 2012100614983 A CN2012100614983 A CN 2012100614983A CN 201210061498 A CN201210061498 A CN 201210061498A CN 102557515 A CN102557515 A CN 102557515A
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- frostproofer
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Abstract
The invention relates to an anti-freezing agent for concretes and belongs to the technical field of anti-freezing agents. The anti-freezing agent for the concretes is characterized by comprising the following components in parts by weight: 10-20 parts of polycarboxylic acid water reducing agent, 5-15 parts of polycarboxylic acid slump retaining agent, 5-10 parts of calcium nitrate, 5-10 parts of calcium carbonate, 1-2 parts of air entraining agent and 1-2 parts of defoaming agent. The anti-freezing agent for the concretes is good in cement adaptability, stable in quality, environmentally-friendly, convenient to use, reliable in process, convenient in operation, high in production efficiency, convenient in industrialized production and the like, the prepared concretes are good in working performance and are maintained not to be frozen at minus 20DEG C.
Description
Technical field
The invention belongs to the frostproofer technical field, particularly relate to a kind of concrete and use frostproofer.
Background technology
At present, construction in winter for preventing concrete generation freeze injury, is mainly taked two kinds of safeguard procedures, and the one, adopt to cover or go along with sb. to guard him temperature-rising method and prevent that concrete temperature from reducing to below 0 ℃, this method cost is high, complicated operating process; The 2nd, admixture frostproofer in concrete, this method construction is simple, and effect is also better, is therefore obtaining widespread use.The frostproofer that uses in the existing construction work all is that composite high-early strength component, antifreezing component and bleed component are formulated again with the diminishing combination.Wherein the diminishing component comprises naphthalenesulfonate formaldehyde condensation compound (naphthalene series high-efficiency water-reducing agent), sulfonated melamine compound condenses, sulfonated lignin; Early stage component comprises vitriol, carbonate, nitrate salt etc., and wherein majority is a sodium salt; Nitrite, nitrate salt, villaumite, urea and ammoniacal liquor etc. are arranged in the antifreezing component.Villaumite can be to steel bar corrosion, and work-ing life is built in influence; Urea, ammoniacal liquor etc. discharge irritating smell, influence quality of life, and nitrite has carcinogenesis, and is prone to cause the concrete alkali aggregate reaction, bad phenomenon such as the accumulation of salt in the surface soil, and the influence building is used and visual appearance.Existing frostproofer also exists quality unstable in the concrete use, influences technical problems such as the various construction works of concrete.
Summary of the invention
The present invention provides a kind of concrete to use frostproofer for solving the problem that prior art exists.
The present invention seeks to carry the arch a kind of have cement adaptability good, steady quality, product environmental protection; Easy to use, technology is reliable, and is easy to operate; Production efficiency is high; Be convenient to suitability for industrialized production, the concrete that can adapt to characteristics such as various requirement of engineering is used frostproofer, can keep concrete under-20 ℃, not freeze.
Concrete of the present invention adopts following technical scheme with frostproofer:
A kind of concrete is used frostproofer, is characterized in: the weight part of each component of frostproofer does,
Concrete of the present invention can also adopt following technical measures with frostproofer:
Described concrete is used frostproofer, is characterized in: concrete is formed with the weight part of each component of frostproofer:
Described concrete is used frostproofer, is characterized in: polycarboxylate water-reducer is made up of following component, and the weight part of each component is:
Described concrete is used frostproofer, is characterized in: the poly carboxylic acid slump retaining agent is made up of following component, and the weight part of each component is:
Wherein, the preparation of polycarboxylate water-reducer comprises that the following technology step gathers,
(1) in reaction kettle, add allyl ethers, controlled temperature 50-70 ℃, under agitation condition, make allyl ethers water-soluble, regulate the ph value to 4-6 with vinylformic acid;
(2) ammonium persulphate is divided into 3 parts, adds 1 part earlier, stirs 10-20 minute, and ammonium persulphate is fully dissolved, and per hour adds 1 part then;
(3) remaining vinylformic acid and mercapto acid, rust inhibitor Sodium Nitrite were joined in the reaction vessel with 3-5 hour;
(4) the reaction insulation is 1-2 hour;
(5) regulate the ph value to 6-7 with sodium hydroxide, thin up obtains concrete and uses polycarboxylate water-reducer.
Wherein, concrete comprises that with the preparation of poly carboxylic acid slump retaining agent the following technology step gathers:
(1) with behind polyethenoxy ether and the water adding reaction vessel, under agitation condition, controlled temperature 60-80 ℃ makes polyethenoxy ether water-soluble;
(2) ydrogen peroxide 50 is added reaction vessel after, stir and made ydrogen peroxide 50 dissolving in 10-20 minute;
(3) with the acid of remaining vinylformic acid, mercapto, xitix soluble in water after, be added drop-wise in the reaction vessel with 3-5 hour;
(4) the reaction insulation is 1-2 hour;
(5) regulate the ph value to 6-7 with sodium hydroxide, thin up obtains concrete and uses the poly carboxylic acid slump retaining agent.
Advantage that the present invention has and positively effect:
Concrete of the present invention is used frostproofer, owing to adopt brand-new technology scheme of the present invention, therefore, the present invention is good to cement adaptability; Steady quality, the product environmental protection, easy to use, technology is reliable; Easy to operate, production efficiency is high, is convenient to advantages such as suitability for industrialized production, does not discharge any waste water, waste gas in the production process; Belong to the environment friendly green product, the workability of concrete that mixes can be good, can keep concrete under-20 ℃, not freeze.
Embodiment
For further understanding technology contents of the present invention, characteristics and effect, enumerate following instance now, and specify as follows:
Embodiment 1
A kind of concrete is used frostproofer, and the weight part of each component does,
In the above-mentioned composition, the weight part of each component of polycarboxylate water-reducer is:
In the above-mentioned composition, the weight part of each component of poly carboxylic acid slump retaining agent is:
Claims (4)
1. a concrete is used frostproofer, it is characterized in that: concrete is formed with the weight part of each component of frostproofer:
2. concrete according to claim 1 is used frostproofer, it is characterized in that: concrete is formed with the weight part of each component of frostproofer:
3. concrete according to claim 1 and 2 is used frostproofer, it is characterized in that: polycarboxylate water-reducer is made up of following component, and the weight part of each component is:
4. concrete according to claim 1 and 2 is used frostproofer, it is characterized in that: the poly carboxylic acid slump retaining agent is made up of following component, and the weight part of each component is:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100614983A CN102557515B (en) | 2012-03-09 | 2012-03-09 | Anti-freezing agent for concretes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100614983A CN102557515B (en) | 2012-03-09 | 2012-03-09 | Anti-freezing agent for concretes |
Publications (2)
| Publication Number | Publication Date |
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| CN102557515A true CN102557515A (en) | 2012-07-11 |
| CN102557515B CN102557515B (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100614983A Active CN102557515B (en) | 2012-03-09 | 2012-03-09 | Anti-freezing agent for concretes |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107352835A (en) * | 2017-07-15 | 2017-11-17 | 北京恒安外加剂有限责任公司 | High-performance antifreezing agent and preparation method thereof |
| CN109592925A (en) * | 2019-01-11 | 2019-04-09 | 深鹏环保工程有限公司 | A kind of building waste wallboard freeze thawing resistance additive and preparation method thereof |
| CN109704614A (en) * | 2019-01-11 | 2019-05-03 | 深鹏环保工程有限公司 | A kind of dregs building block freeze thawing resistance additive and preparation method thereof |
| CN109776017A (en) * | 2019-02-15 | 2019-05-21 | 山东鲁班建设集团总公司 | A kind of composite concrete antifreeze and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555110A (en) * | 2009-05-11 | 2009-10-14 | 江苏鼎达建材有限公司 | Concrete antifreezer and preparation method thereof |
| CN101781101A (en) * | 2009-01-16 | 2010-07-21 | 上海华联建筑外加剂厂有限公司 | High-performance polycarboxylate based polyether water reducing agent |
| JP2010229015A (en) * | 2009-03-06 | 2010-10-14 | Nippon Shokubai Co Ltd | Shrinkage-reducing agent for hydraulic material |
-
2012
- 2012-03-09 CN CN2012100614983A patent/CN102557515B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101781101A (en) * | 2009-01-16 | 2010-07-21 | 上海华联建筑外加剂厂有限公司 | High-performance polycarboxylate based polyether water reducing agent |
| JP2010229015A (en) * | 2009-03-06 | 2010-10-14 | Nippon Shokubai Co Ltd | Shrinkage-reducing agent for hydraulic material |
| CN101555110A (en) * | 2009-05-11 | 2009-10-14 | 江苏鼎达建材有限公司 | Concrete antifreezer and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107352835A (en) * | 2017-07-15 | 2017-11-17 | 北京恒安外加剂有限责任公司 | High-performance antifreezing agent and preparation method thereof |
| CN109592925A (en) * | 2019-01-11 | 2019-04-09 | 深鹏环保工程有限公司 | A kind of building waste wallboard freeze thawing resistance additive and preparation method thereof |
| CN109704614A (en) * | 2019-01-11 | 2019-05-03 | 深鹏环保工程有限公司 | A kind of dregs building block freeze thawing resistance additive and preparation method thereof |
| CN109704614B (en) * | 2019-01-11 | 2021-07-09 | 深鹏环保工程有限公司 | Anti-freezing and thawing additive for muck blocks and preparation method thereof |
| CN109592925B (en) * | 2019-01-11 | 2021-09-07 | 深鹏环保工程有限公司 | Anti-freezing and thawing additive for construction waste wallboard and preparation method thereof |
| CN109776017A (en) * | 2019-02-15 | 2019-05-21 | 山东鲁班建设集团总公司 | A kind of composite concrete antifreeze and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN102557515B (en) | 2013-11-20 |
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Effective date of registration: 20180305 Address after: 300162 Tianjin Dongli District Dongli Lake Wanke city education complex science and technology building 202-1 room Patentee after: Tianjin Shiji Tianyuan Group Co., Ltd. Address before: 300300 Xinli street, Dongli District, Tianjin City, three villages Patentee before: Tianjin Nuode Building Materials Co., Ltd. |