CN105503010A - Polycarboxylic acid type concrete antifreezer - Google Patents
Polycarboxylic acid type concrete antifreezer Download PDFInfo
- Publication number
- CN105503010A CN105503010A CN201511007760.6A CN201511007760A CN105503010A CN 105503010 A CN105503010 A CN 105503010A CN 201511007760 A CN201511007760 A CN 201511007760A CN 105503010 A CN105503010 A CN 105503010A
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- CN
- China
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- water
- acid type
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- type concrete
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Classifications
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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
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/304—Air-entrainers
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/601—Agents for increasing frost resistance
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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 invention relates to a polycarboxylic acid type concrete antifreezer, prepared from the following components in percentage by mass: 6-6.5 percent of lower alcohol, 15-20 percent of urea, 0.3-0.5 percent of organic alcohol amine, 0.02-0.04 percent of air entraining agent, 0.4-0.6 percent of Pu minutena, 15-25 percent of efficient polycarboxylic acid water reducing agent, and 45-65 percent of water. The polycarboxylic acid type concrete antifreezer has the advantages of low mixing amount, high water reducing ratio, good collapse prevention, moderate air entraining and the like, so that the slump loss change of concrete is little, and the mobility of the concrete is kept.
Description
Technical field
The present invention relates to a kind of polyocarboxy acid type frostproofer for cement concrete, belong to building material technical field.
Background technology
Northern China is much regional, particularly Xinjiang region, winter temperature is all below-5 DEG C, sometimes less than-30 DEG C can be reached, when temperature is lower than concrete hydrating freezing point temperature, the heat evolution velocity of cement will be made to be greatly affected, and then to affect its ultimate compression strength, and the generation ice expansive force that freezes makes concrete inner structure be destroyed, and bring disadvantageous effect also can to concrete intensity and weather resistance.Based on above Problems existing, certain method during low-temperature construction, to be taked in the winter time to solve concrete antifreeze problem.At present, mainly adopt the method adding frostproofer in concrete, the method is simple to operate, successful.
Up to the present, the frostproofer used in domestic and international construction work mainly forms with diminishing component, accelerating component, antifreezing component and bleed component.Wherein diminishing component comprises high performance water reducing agent of polyocarboxy acid, naphthalene series high-efficiency water-reducing agent, melamine high-efficiency water-reducing agent, sulfonated lignin etc.Accelerating component mainly contains sodium sulfate, calcium chloride, nitrocalcite, trolamine etc.Bleed component mainly comprises wooden calcium, wooden sodium and rosin based air entrapment agent.Antifreezing component mainly contains calcium chloride, salt of wormwood, sodium-chlor, Sodium Nitrite and ethylene glycol etc.
Patent application CN102140021A asks a kind of cement concrete antifreezer of protection, and tried by high performance water reducing agent of polyocarboxy acid, low mass molecule alcohol, three mushroom soaps, calcium formiate, organic alcohol amine and water form.Calcium ion in calcium formiate wherein can affect the water-reducing effect of poly carboxylic acid.Patent application CN1153753A asks a kind of efficient liquid antifreezerfor concrete of protection; it is mixed by ethylene glycol, urea, trolamine, sodium laurylsulfonate, high efficiency water reducing agent and water six kinds of compositions and forms, and is only applicable to the various concrete preparation that temperature is not less than-15 DEG C.
Summary of the invention
The object of the present invention is to provide that a kind of volume is low, water-reducing rate is high, protect the polyocarboxy acid type concrete antifreezer of the advantage such as good of collapsing.
The object of the present invention is achieved like this: a kind of polyocarboxy acid type concrete antifreezer, formulated by low-carbon alcohol, urea, organic alcohol amine, air entrapment agent, general sodium, polycarboxylate water-reducer and water, the mass percent of often kind of component is respectively: described low-carbon alcohol is 6 ~ 6.5%, described urea is 15 ~ 20%, described organic alcohol amine is 0.3 ~ 0.5%, and described air entrapment agent is 0.02 ~ 0.04%, and described Pu Na is 0.4 ~ 0.6%, described High-efficiency polycarboxylic acid water reducer is 15 ~ 25%, and described water is 45 ~ 65%.
Further, described organic alcohol amine can select diethanolamine, trolamine or tri-isopropanolamine.
Further, described air entrapment agent can select Sodium dodecylbenzene sulfonate or sodium laurylsulfonate.
Further, described low-carbon alcohol can select ethylene glycol or glycerol.
Polyocarboxy acid type concrete antifreezer of the present invention has that volume is low, water-reducing rate is high, protect and collapse, cause the advantages such as moderate, concrete slump loss changed little, keeps concrete mobility.
Embodiment: the present invention by the restriction of following embodiment, can not determine concrete embodiment according to technical scheme of the present invention and practical situation.
Embodiment 1: by account for total amount be 6.25% urea and account for total amount be 40 ~ 50% water add in three neck round-bottomed flasks, stir and be heated to 70 DEG C ~ 75 DEG C, stir after ten minutes, add successively while stirring account for total amount be 0.04% air entrapment agent, account for total amount be 0.5% general sodium, to account for total amount be that the water of 20% is to all dissolving, then add and account for the polycarboxylate water-reducer that total amount is 25%, add the water accounting for total amount 10% again, stirring reaction 20 minutes; Then add successively while stirring account for total amount be 0.46% trolamine, account for total amount be 17.75% ethylene glycol, account for the water that total amount is 20-30%, stirring reaction 1 hour stops stirring, and after being cooled to normal temperature, namely obtains liquid antifreezerfor concrete.
Embodiment 2: by account for total amount be 6.25% urea and account for total amount be 40 ~ 50% water add in three neck round-bottomed flasks, stir and be heated to 70 DEG C ~ 75 DEG C, stir after ten minutes, add successively while stirring account for total amount be 0.04% air entrapment agent, account for total amount be 0.5% general sodium, to account for total amount be that the water of 20% is to all dissolving, then add and account for the polycarboxylate water-reducer that total amount is 20%, add the water accounting for total amount 10% again, stirring reaction 20 minutes; Then add successively while stirring account for total amount be 0.46% trolamine, account for total amount be 17.75% ethylene glycol, account for the water that total amount is 20-30%, stirring reaction 1 hour stops stirring, and after being cooled to normal temperature, namely obtains liquid antifreezerfor concrete.
Embodiment 3: by account for total amount be 6.25% urea and account for total amount be 40 ~ 50% water add in three neck round-bottomed flasks, stir and be heated to 70 DEG C ~ 75 DEG C, stir after ten minutes, add successively while stirring account for total amount be 0.04% air entrapment agent, account for total amount be 0.5% general sodium, to account for total amount be that the water of 20% is to all dissolving, then add and account for the polycarboxylate water-reducer that total amount is 15%, add the water accounting for total amount 10% again, stirring reaction 20 minutes; Then add successively while stirring account for total amount be 0.46% trolamine, account for total amount be 17.75% ethylene glycol, account for the water that total amount is 20-30%, stirring reaction 1 hour stops stirring, and after being cooled to normal temperature, namely obtains liquid antifreezerfor concrete.
In above embodiment, the rank of ethylene glycol is AR, the content >99% of the content >85% of trolamine N (CH2CH2OH) 3, urea H2NCONH2.
Obviously, above-mentioned explanation of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.Every belong to technical scheme of the present invention the apparent change of amplifying out or variation be still in the row of protection scope of the present invention.
Claims (4)
1. a polyocarboxy acid type concrete antifreezer, formulated by low-carbon alcohol, urea, organic alcohol amine, air entrapment agent, general sodium, polycarboxylate water-reducer and water, the mass percent of often kind of component is respectively: described low-carbon alcohol is 6 ~ 6.5%, described urea is 15 ~ 20%, described organic alcohol amine is 0.3 ~ 0.5%, and described air entrapment agent is 0.02 ~ 0.04%, and described Pu Na is 0.4 ~ 0.6%, described High-efficiency polycarboxylic acid water reducer is 15 ~ 25%, and described water is 45 ~ 65%.
2. polyocarboxy acid type concrete antifreezer as claimed in claim 1, is characterized in that: described organic alcohol amine can select diethanolamine, trolamine or tri-isopropanolamine.
3. polyocarboxy acid type concrete antifreezer as claimed in claim 1, is characterized in that: described air entrapment agent can select Sodium dodecylbenzene sulfonate or sodium laurylsulfonate.
4. polyocarboxy acid type concrete antifreezer as claimed in claim 1, is characterized in that: described low-carbon alcohol can select ethylene glycol or glycerol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511007760.6A CN105503010A (en) | 2015-12-30 | 2015-12-30 | Polycarboxylic acid type concrete antifreezer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511007760.6A CN105503010A (en) | 2015-12-30 | 2015-12-30 | Polycarboxylic acid type concrete antifreezer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105503010A true CN105503010A (en) | 2016-04-20 |
Family
ID=55711389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511007760.6A Pending CN105503010A (en) | 2015-12-30 | 2015-12-30 | Polycarboxylic acid type concrete antifreezer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105503010A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948559A (en) * | 2016-05-04 | 2016-09-21 | 江苏中铁奥莱特新材料有限公司 | Negative temperature concrete antifreezer |
| CN108503299A (en) * | 2017-02-28 | 2018-09-07 | 北京城泰混凝土制品有限公司 | Strong intensity steel fiber reinforced concrete |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497507A (en) * | 2009-03-20 | 2009-08-05 | 武汉市联合石油化工有限责任公司 | High-early strength antifreezing polycarboxylate high performance water reducing agent and preparation |
| CN102140021A (en) * | 2011-05-13 | 2011-08-03 | 河北铁园科技发展有限公司 | Cement concrete antifreezer |
| CN102515615A (en) * | 2011-12-29 | 2012-06-27 | 上海三瑞高分子材料有限公司 | Anti-freezing concrete water reducer |
-
2015
- 2015-12-30 CN CN201511007760.6A patent/CN105503010A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497507A (en) * | 2009-03-20 | 2009-08-05 | 武汉市联合石油化工有限责任公司 | High-early strength antifreezing polycarboxylate high performance water reducing agent and preparation |
| CN102140021A (en) * | 2011-05-13 | 2011-08-03 | 河北铁园科技发展有限公司 | Cement concrete antifreezer |
| CN102515615A (en) * | 2011-12-29 | 2012-06-27 | 上海三瑞高分子材料有限公司 | Anti-freezing concrete water reducer |
Non-Patent Citations (1)
| Title |
|---|
| 闫培渝等: "《建筑材料》", 29 February 2008, 中国水利水电出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948559A (en) * | 2016-05-04 | 2016-09-21 | 江苏中铁奥莱特新材料有限公司 | Negative temperature concrete antifreezer |
| CN108503299A (en) * | 2017-02-28 | 2018-09-07 | 北京城泰混凝土制品有限公司 | Strong intensity steel fiber reinforced concrete |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20160420 |