CN102786250A - Concrete antifreezer - Google Patents
Concrete antifreezer Download PDFInfo
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- CN102786250A CN102786250A CN2012103169332A CN201210316933A CN102786250A CN 102786250 A CN102786250 A CN 102786250A CN 2012103169332 A CN2012103169332 A CN 2012103169332A CN 201210316933 A CN201210316933 A CN 201210316933A CN 102786250 A CN102786250 A CN 102786250A
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- concrete
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- concrete antifreezer
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Abstract
The invention discloses concrete antifreezer which comprises, by weight, 80-140 parts of polycarboxylic water reducer, 100-120 parts of sulphonated acetone-formaldehyde condensate, 1-4 parts of defoaming ingredient, 8-15 parts of antifreezing ingredient, and 600-700 parts of water. The concrete antifreezer is simple and easy in production process, low in cost and suitable for industrial production.
Description
Technical field
The present invention relates to a kind of concrete antifreezer.
Background technology
Concrete antifreezer is meant and can makes concrete lasting aquation and sclerosis under subzero temperature, and is issued to a kind of concrete admixture of estimated performance at the regulation curing condition." three Norths " area in China; Winter longer duration, construction phase of project shortens, when temperature is lower than 0 ℃; Under the subzero temperature concrete mixing water freeze hydrated cementitious is stagnated; The volumetric expansion meeting that produces of water freezing simultaneously causes the concrete hydrating product structure to form damage, and therefore, in negative temperature concrete, adding frostproofer, to carry out antifreeze be a kind of common technology means of concrete teletostage subzero temperature construct.
Existing frostproofer adopts diminishing component and antifreezing component to carry out composite processing more.The high performance water reducing agent of polyocarboxy acid price is high, and bad with flexibility such as the air entrapment agent of using always, frostproofers.Sulfonated acetone-formaldehyde condensation products water-reducing rate is high, highly beneficial to the growth of early age strength of concrete; But the degree of mobilization loss when the preparation Cracking of High Flowing Concrete is bigger; And the heavy dose of sulfonated acetone-formaldehyde condensation products of admixture can make concrete surface darken, and has therefore influenced its application.
Summary of the invention
To the objective of the invention is the defective that exists in the prior art in order solving, to provide a kind of cost low concrete antifreezer.
In order to achieve the above object; The invention provides a kind of concrete antifreezer, comprise the polycarboxylate water-reducer of 80-140 weight part, the sulfonated acetone-formaldehyde condensation products of 100-120 weight part, the froth breaking component of 1-4 weight part, the antifreezing component of 8-15 weight part and the water of 600-700 weight part.
Above-mentioned concrete antifreezer also comprises the sodium lignosulfonate of 50-70 weight part.
Wherein, the froth breaking component is polyether-modified polysiloxane defoamers.Antifreezing component is a low-carbon alcohol.The preferred allyl polyethenoxy ether of polycarboxylate water-reducer-acroleic acid macromolecular polymkeric substance.
The present invention compares prior art and has the following advantages: adopt sulfonated acetone-formaldehyde condensation products and high performance water reducing agent of polyocarboxy acid composite, both reduced cost, reduced again when polycarboxylate water-reducer uses separately volume changed and the susceptibility of other materials variation.Utilize the froth breaking component simultaneously, eliminated the air pocket on high performance water reducing agent of polyocarboxy acid surface, reduce detrimentally affect concrete pore structure and weather resistance generation.Production process of the present invention is simple, and cost is low, helps suitability for industrialized production.
Embodiment
Below in conjunction with specific embodiment concrete antifreezer of the present invention is elaborated.
Embodiment one
Getting the polycarboxylate water-reducer (allyl polyethenoxy ether-acroleic acid macromolecular polymkeric substance) of 80 weight parts, the sulfonated acetone-formaldehyde condensation products of 100 weight parts, the polyether-modified polysiloxane defoamers of 1 weight part and the terepthaloyl moietie of 8 weight parts mixes; The water that adds 600 weight parts, stirring gets final product.
When under-15 ℃ subzero temperature condition, preparing concrete, volume is 3% of a cement, and negative temperature conservation transfers the intensity that 28 days intensity of normal curing reaches normal curing to after 7 days.
Embodiment two
Get the polycarboxylate water-reducer of 140 weight parts, the sulfonated acetone-formaldehyde condensation products of 120 weight parts, the sodium lignosulfonate of 50 weight parts, the polyether-modified polysiloxane defoamers of 4 weight parts and the mixed with propylene glycol of 15 weight parts; The water that adds 700 weight parts, stirring gets final product.
When under-15 ℃ subzero temperature condition, preparing concrete, volume is 3.5% of a cement, and negative temperature conservation transfers the intensity that 28 days intensity of normal curing reaches normal curing to after 7 days.
Embodiment three
Get the polycarboxylate water-reducer of 100 weight parts, the sulfonated acetone-formaldehyde condensation products of 110 weight parts, the sodium lignosulfonate of 70 weight parts, the polyether-modified polysiloxane defoamers of 2 weight parts and the mixed with propylene glycol of 12 weight parts; The water that adds 700 weight parts, stirring gets final product.
When under-15 ℃ subzero temperature condition, preparing concrete, volume is 3.5% of a cement, and negative temperature conservation transfers the intensity that 28 days intensity of normal curing reaches normal curing to after 7 days.
Claims (4)
1. concrete antifreezer; It is characterized in that, comprise the polycarboxylate water-reducer of 80-140 weight part, the sulfonated acetone-formaldehyde condensation products of 100-120 weight part, the froth breaking component of 1-4 weight part, the antifreezing component of 8-15 weight part and the water of 600-700 weight part.
2. concrete antifreezer according to claim 1 is characterized in that: said concrete antifreezer also comprises the sodium lignosulfonate of 50-70 weight part.
3. concrete antifreezer according to claim 1 and 2 is characterized in that, said froth breaking component is polyether-modified polysiloxane defoamers.
4. concrete antifreezer according to claim 1 and 2 is characterized in that: said antifreezing component is a low-carbon alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103169332A CN102786250A (en) | 2012-08-31 | 2012-08-31 | Concrete antifreezer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103169332A CN102786250A (en) | 2012-08-31 | 2012-08-31 | Concrete antifreezer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102786250A true CN102786250A (en) | 2012-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103169332A Pending CN102786250A (en) | 2012-08-31 | 2012-08-31 | Concrete antifreezer |
Country Status (1)
| Country | Link |
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| CN (1) | CN102786250A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105731867A (en) * | 2016-02-03 | 2016-07-06 | 陈翔 | Concrete antifreezer and preparing method thereof |
| CN107954629A (en) * | 2017-12-14 | 2018-04-24 | 日照弗尔曼新材料科技有限公司 | A kind of environment-friendly type concrete antifreezing agent |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060463A (en) * | 2010-12-03 | 2011-05-18 | 山东宏艺科技股份有限公司 | Low-cost concrete antifreezing pumping aid and preparation method thereof |
-
2012
- 2012-08-31 CN CN2012103169332A patent/CN102786250A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060463A (en) * | 2010-12-03 | 2011-05-18 | 山东宏艺科技股份有限公司 | Low-cost concrete antifreezing pumping aid and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105731867A (en) * | 2016-02-03 | 2016-07-06 | 陈翔 | Concrete antifreezer and preparing method thereof |
| CN105731867B (en) * | 2016-02-03 | 2018-06-26 | 山东中粉建材科技有限公司 | A kind of concrete antifreezer and preparation method thereof |
| CN107954629A (en) * | 2017-12-14 | 2018-04-24 | 日照弗尔曼新材料科技有限公司 | A kind of environment-friendly type concrete antifreezing agent |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121121 |