CN103708756A - Later-period obviously-enhanced cement grinding aid and preparation method thereof - Google Patents
Later-period obviously-enhanced cement grinding aid and preparation method thereof Download PDFInfo
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- CN103708756A CN103708756A CN201310737936.8A CN201310737936A CN103708756A CN 103708756 A CN103708756 A CN 103708756A CN 201310737936 A CN201310737936 A CN 201310737936A CN 103708756 A CN103708756 A CN 103708756A
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Abstract
The invention discloses a later-period obviously-enhanced cement grinding aid and a preparation method thereof, belonging to the field of cement preparation. The grinding aid comprises the following components in percentage by mass: 10-40% of alkylol amine composition, 5-10% of anhydrous sodium sulfate, 1-3% of acetic acid, 10-30% of sodium gluconate, 5-20% of glycerol, 5-20% of molasses and the balance of water. The preparation method comprises the following steps: proportionally mixing the alkylol amine composition, anhydrous sodium sulfate, acetic acid, sodium gluconate, glycerol, molasses and water, and sufficiently stirring at normal temperature under atmospheric pressure. The cement grinding aid is suitable for Portland cement, composite cement, slag cement and various other cement species, and is especially suitable for cement with insufficient later strength or heavily-doped limestone cement; and the cement grinding aid can obviously enhance the cement grinding efficiency, lower the energy consumption, effectively enhance the 3-day and 28-day compression strength of cement and especially enhance the 28-day compression strength by 5-10 MPa.
Description
Technical field
The present invention relates to cement grinding aid, more particularly, relate to remarkable enhanced cement grinding aid of a kind of later stage and preparation method thereof.
Technical background
Cement grinding aid can improve cement pulverizing course in the situation that not changing cement production process and equipment, improves mill efficiency, reduces energy consumption of unit product; Grinding aid, as surfactant, can improve the hydrated environment of cement simultaneously, improves cement performance.
Most domestic cement production enterprise is being used cement grinding aid at present, by visiting on the spot of a large amount of cement production enterprises, find that there is the fine but 28 days insufficient strength ideals of 3 days intensity of Some Enterprises cement clinker, also have part of cement enterprise periphery blended material deficienter, produce the active mixed material of cement, as less in grain slag etc. and limestone resource abundant.Like this, just made the cement grinding aid product of remarkable enhancement type of later stage become the problem of broad research in the industry.
Most of cement grinding aids directly adopt trolamine and Industrial Salt is composite forms on the market at present, obvious not to cement reinforced effects, and give in cement and bring a large amount of chlorions into, if dealt with improperly, can be to the disadvantageous effects such as reinforcing bars rusting in Steel Concrete.
Summary of the invention
1, the technical problem that invention will solve
Obvious not to cement reinforced effects for existing most of cement grinding aids on the market, especially late-enhancement effect is undesirable, and give in cement and bring a large amount of chlorions into, in view of this, the invention provides remarkable enhanced cement grinding aid of a kind of later stage and preparation method thereof, obviously improve cement grinding efficiency, reduce energy consumption, can effectively improve cement again 3 days and 28 days ultimate compression strength.
2, technical scheme
Remarkable enhanced cement grinding aid of a kind of later stage, comprise alcamines composition, anhydrous sodium sulphate, acetic acid, Sunmorl N 60S, glycerol, molasses and water, the mass percent of described component is: 10-40% alcamines composition, 5-10% anhydrous sodium sulphate, 1-3% acetic acid, 10-30% Sunmorl N 60S, 5-20% glycerol, 5-20% molasses, surplus is water.
The preparation method who the invention provides remarkable enhanced cement grinding aid of a kind of later stage, comprising:
Alcamines composition, anhydrous sodium sulphate, acetic acid, Sunmorl N 60S, glycerol, molasses and water are mixed in proportion, under normal temperature, normal pressure, by abundant stirring, make.
As preferred technical scheme, the mass percent of described component is: 20-30% alcamines composition, and 5-10% anhydrous sodium sulphate, 2-3% acetic acid, 19-26% Sunmorl N 60S, 10-15% glycerol, 5-10% molasses, surplus is water.
As preferred technical scheme, described alcamines composition is the mixture that di-alcohol monoisopropanolamine and polyoxyethylene glycol mass ratio are 1:1.
3, beneficial effect
Cement grinding aid prepared by the method is applicable to all kinds of cement types such as silicate cement, complex cement, slag cement, the cement or the large volume Wingdale cement that are particularly useful for later strength deficiency, can obviously improve cement grinding efficiency, reduce energy consumption, can effectively improve cement again 3 days and 28 days ultimate compression strength, especially improve 28 days ultimate compression strength 5-10MPa.
The cement grinding aid of this invention preparation is chloride ion-containing not, and the reinforcing bar in Steel Concrete is had no adverse effect, and does not affect the weather resistance of Steel Concrete, is better than on the market the chloride ion-containing grinding aid in use.
Cement grinding aid prepared by the present invention can reduce cement normal consistency water consumption.
Embodiment
In order to make technique means of the present invention, creation characteristic, reach effect and be easy to understand; below further set forth the present invention; but the embodiments described below are only a part of embodiment of the present invention; rather than whole embodiment; embodiment based in the present invention, those skilled in the art belong to the scope of protection of the invention not making other embodiment that obtain under creative work prerequisite.
Embodiment 1
By following mass percent, take each component: 30% alcamines composition, 5% anhydrous sodium sulphate, 2% acetic acid, 15% Sunmorl N 60S, 10% glycerol, 5% molasses, 33% water.Described alcamines composition is the mixture that di-alcohol monoisopropanolamine and polyoxyethylene glycol mass ratio are 1:1.
First by weighing water accurately, add stirring tank, by weighing anhydrous sodium sulphate, Sunmorl N 60S accurately, pour successively at normal temperatures and pressures abundant stirring 30 minutes in stirring tank into, by weighing alcamines composition, glycerol, molasses accurately, pour successively abundant stirring 30 minutes in stirring tank into again, finally add acetic acid and stir 30 minutes, filtration gets product, numbering 1#.
Embodiment 2
By following mass percent, take each component: 20% alcamines composition, 5% anhydrous sodium sulphate, 2% acetic acid, 19% Sunmorl N 60S, 15% glycerol, 5% molasses, 34% water, described alcamines composition is the mixture that di-alcohol monoisopropanolamine and polyoxyethylene glycol mass ratio are 1:1.
First by weighing water accurately, add stirring tank, by weighing anhydrous sodium sulphate, Sunmorl N 60S accurately, pour successively at normal temperatures and pressures abundant stirring 30 minutes in stirring tank into, by weighing alcamines composition, glycerol, molasses accurately, pour successively abundant stirring 30 minutes in stirring tank into again, finally add acetic acid and stir 30 minutes, filtration gets product, numbering 2#.
Embodiment 3
By following mass percent, take each component: 10% alcamines composition, 10% anhydrous sodium sulphate, 3% acetic acid, 26% Sunmorl N 60S, 10% glycerol, 10% molasses, 31% water.Described alcamines composition is the mixture that di-alcohol monoisopropanolamine and polyoxyethylene glycol mass ratio are 1:1.
First by weighing water accurately, add stirring tank, by weighing anhydrous sodium sulphate, Sunmorl N 60S accurately, pour successively at normal temperatures and pressures abundant stirring 30 minutes in stirring tank into, by weighing alcamines composition, glycerol, molasses accurately, pour successively abundant stirring 30 minutes in stirring tank into again, finally add acetic acid and stir 30 minutes, filtration gets product, numbering 3#.
Embodiment 4
By following mass percent, take each component:
40% alcamines composition, 8% anhydrous sodium sulphate, 1% acetic acid, 10% Sunmorl N 60S, 5% glycerol, 20% molasses, 16% water.
First by weighing water accurately, add stirring tank, by weighing anhydrous sodium sulphate, Sunmorl N 60S accurately, pour successively at normal temperatures and pressures abundant stirring 30 minutes in stirring tank into, by weighing alcamines composition, glycerol, molasses accurately, pour successively abundant stirring 30 minutes in stirring tank into again, finally add acetic acid and stir 30 minutes, filtration gets product, numbering 4#.
Embodiment 5
By following mass percent, take each component: 10% alcamines composition, 6% anhydrous sodium sulphate, 2% acetic acid, 30% Sunmorl N 60S, 20% glycerol, 15% molasses, 17% water.
First by weighing water accurately, add stirring tank, by weighing anhydrous sodium sulphate, Sunmorl N 60S accurately, pour successively at normal temperatures and pressures abundant stirring 30 minutes in stirring tank into, by weighing alcamines composition, glycerol, molasses accurately, pour successively abundant stirring 30 minutes in stirring tank into again, finally add acetic acid and stir 30 minutes, filtration gets product, numbering 5#.
Embodiment 6
By following mass percent, take each component: 10% alcamines composition, 6% anhydrous sodium sulphate, 2% acetic acid, 30% Sunmorl N 60S, 20% glycerol, 15% molasses, 17% water.
First by weighing water accurately, add stirring tank, by weighing anhydrous sodium sulphate, Sunmorl N 60S accurately, pour successively at normal temperatures and pressures abundant stirring 30 minutes in stirring tank into, by weighing alcamines composition, glycerol, molasses accurately, pour successively abundant stirring 30 minutes in stirring tank into again, finally add acetic acid and stir 30 minutes, filtration gets product, numbering 6#.
Embodiment 7
By following mass percent, take each component: 25% alcamines composition, 8% anhydrous sodium sulphate, 2.5% acetic acid, 20% Sunmorl N 60S, 12% glycerol, 7.5% molasses, 25% water.
First by weighing water accurately, add stirring tank, by weighing anhydrous sodium sulphate, Sunmorl N 60S accurately, pour successively at normal temperatures and pressures abundant stirring 30 minutes in stirring tank into, by weighing alcamines composition, glycerol, molasses accurately, pour successively abundant stirring 30 minutes in stirring tank into again, finally add acetic acid and stir 30 minutes, filtration gets product, numbering 7#.
Application example
Cement grinding aid 1# of the present invention, 2#, 3#, 4#, 5#, 6#, 7# are carried out respectively to little mill test and do quality testing comparison and detection, and 0# is not for adding grinding aid sample of the present invention for numbering.
Little mill test grinding time is 33 minutes, and grinding material is 5KG, and grinding material mixture ratio is 80% grog, 5% dihydrate gypsum, 5% grain slag, 5% stone, 5% flyash; Grinding aid volume is 0.1%.
Testing data is as follows:
Conclusion (of pressure testing):
By check data, can find out that 1#, 2#, 3#, 4#, 5#, 6#, the 7# grinding aid product by embodiment, done all have good grinding-aid effect, and helpful to the raising of strength of cement, especially 28 days ultimate compression strength improves obviously, adds in addition the standard consistency water requirement of cement after grinding aid to decline to some extent.
Claims (5)
1. a remarkable enhanced cement grinding aid of later stage, comprise alcamines composition, anhydrous sodium sulphate, acetic acid, Sunmorl N 60S, glycerol, molasses and water, the mass percent of described component is: 10-40% alcamines composition, 5-10% anhydrous sodium sulphate, 1-3% acetic acid, 10-30% Sunmorl N 60S, 5-20% glycerol, 5-20% molasses, surplus is water.
2. remarkable enhanced cement grinding aid of later stage according to claim 1, is characterized in that, the mass percent of described component is: 20-30% alcamines composition, 5-10% anhydrous sodium sulphate, 2-3% acetic acid, 19-26% Sunmorl N 60S, 10-15% glycerol, 5-10% molasses, surplus is water.
3. grinding aid according to claim 1 and 2, is characterized in that, described alcamines composition is the mixture that di-alcohol monoisopropanolamine and polyoxyethylene glycol mass ratio are 1:1.
4. according to remarkable enhanced cement grinding aid of the later stage described in claim 1-3, its preparation methods steps is:
Alcamines composition, anhydrous sodium sulphate, acetic acid, Sunmorl N 60S, glycerol, molasses and the water of weighing are mixed in proportion, under normal temperature, normal pressure, by abundant stirring, make.
5. later stage according to claim 4 remarkable enhanced cement grinding aid preparation method, it is characterized in that, described step is specially: first the water of weighing is added to stirring tank, the anhydrous sodium sulphate of weighing, Sunmorl N 60S are poured into successively at normal temperatures and pressures in stirring tank and fully stirred 30 minutes, again the alcamines composition of weighing, glycerol, molasses are poured into successively in stirring tank and fully stirred 30 minutes, finally add acetic acid and stir 30 minutes, filtering and obtain remarkable enhanced cement grinding aid of later stage.
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| CN201310737936.8A CN103708756B (en) | 2013-12-27 | 2013-12-27 | A kind of later stage remarkable enhanced cement grinding aid and preparation method thereof |
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| CN201310737936.8A CN103708756B (en) | 2013-12-27 | 2013-12-27 | A kind of later stage remarkable enhanced cement grinding aid and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103964732A (en) * | 2014-05-05 | 2014-08-06 | 宁夏青铜峡市西夏科润建材有限公司 | Liquid cement grinding aid for improving adaptability of cement and concrete and preparing method thereof |
| CN104496263A (en) * | 2015-01-05 | 2015-04-08 | 中节能六合天融环保科技有限公司 | Tailing fine powder modifier |
| CN104692696A (en) * | 2015-02-03 | 2015-06-10 | 辽宁鑫隆科技有限公司 | Novel cement grinding aid diethanolisopropanolamine salt |
| CN105084802A (en) * | 2015-07-31 | 2015-11-25 | 武汉理工大学 | High-limestone-flour-adulterate-amount composite enhanced grinding aid for cement and preparation method of high-limestone flour-adulterate amount composite enhanced grinding aid |
| CN105152568A (en) * | 2015-09-18 | 2015-12-16 | 南京荣丰环保科技有限公司 | Liquid cement grinding aid for vertical grinding |
| CN105271913A (en) * | 2015-11-19 | 2016-01-27 | 杭州立平工贸有限公司 | Cement grinding aid and preparation method thereof |
| CN106746882A (en) * | 2016-12-09 | 2017-05-31 | 安徽省建筑工程质量监督检测站 | A kind of slag grinding aid |
| CN107721235A (en) * | 2017-11-10 | 2018-02-23 | 东阿东昌天汇科技有限公司 | A kind of ceramic grinding body cement special grinding aid and preparation method thereof |
| CN108218286A (en) * | 2018-02-27 | 2018-06-29 | 铜仁学院 | A kind of cement grinding aid and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101428985A (en) * | 2008-11-05 | 2009-05-13 | 北京中大新材能源有限公司 | Composite grinding aid, production method and uses thereof |
| CN102923982A (en) * | 2012-11-06 | 2013-02-13 | 沈阳建筑大学 | Liquid composite grinding aid for granulated blast-furnace slag and preparation method thereof |
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2013
- 2013-12-27 CN CN201310737936.8A patent/CN103708756B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101428985A (en) * | 2008-11-05 | 2009-05-13 | 北京中大新材能源有限公司 | Composite grinding aid, production method and uses thereof |
| CN102923982A (en) * | 2012-11-06 | 2013-02-13 | 沈阳建筑大学 | Liquid composite grinding aid for granulated blast-furnace slag and preparation method thereof |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103964732A (en) * | 2014-05-05 | 2014-08-06 | 宁夏青铜峡市西夏科润建材有限公司 | Liquid cement grinding aid for improving adaptability of cement and concrete and preparing method thereof |
| CN103964732B (en) * | 2014-05-05 | 2015-12-09 | 宁夏青铜峡市西夏科润建材有限公司 | Improve adaptive liquid cement grinding additive of cement and concrete and preparation method thereof |
| CN104496263A (en) * | 2015-01-05 | 2015-04-08 | 中节能六合天融环保科技有限公司 | Tailing fine powder modifier |
| CN104692696A (en) * | 2015-02-03 | 2015-06-10 | 辽宁鑫隆科技有限公司 | Novel cement grinding aid diethanolisopropanolamine salt |
| CN105084802A (en) * | 2015-07-31 | 2015-11-25 | 武汉理工大学 | High-limestone-flour-adulterate-amount composite enhanced grinding aid for cement and preparation method of high-limestone flour-adulterate amount composite enhanced grinding aid |
| CN105152568A (en) * | 2015-09-18 | 2015-12-16 | 南京荣丰环保科技有限公司 | Liquid cement grinding aid for vertical grinding |
| CN105152568B (en) * | 2015-09-18 | 2017-03-29 | 南京荣丰环保科技有限公司 | A kind of Vertical Mill liquid cement grinding additive |
| CN105271913A (en) * | 2015-11-19 | 2016-01-27 | 杭州立平工贸有限公司 | Cement grinding aid and preparation method thereof |
| CN105271913B (en) * | 2015-11-19 | 2017-06-30 | 杭州立平工贸有限公司 | cement grinding aid and preparation method thereof |
| CN106746882A (en) * | 2016-12-09 | 2017-05-31 | 安徽省建筑工程质量监督检测站 | A kind of slag grinding aid |
| CN107721235A (en) * | 2017-11-10 | 2018-02-23 | 东阿东昌天汇科技有限公司 | A kind of ceramic grinding body cement special grinding aid and preparation method thereof |
| CN108218286A (en) * | 2018-02-27 | 2018-06-29 | 铜仁学院 | A kind of cement grinding aid and preparation method thereof |
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| CN103708756B (en) | 2015-10-14 |
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