CN101318791A - Liquid cement grinding aid and preparation method thereof - Google Patents
Liquid cement grinding aid and preparation method thereof Download PDFInfo
- Publication number
- CN101318791A CN101318791A CNA2008101226103A CN200810122610A CN101318791A CN 101318791 A CN101318791 A CN 101318791A CN A2008101226103 A CNA2008101226103 A CN A2008101226103A CN 200810122610 A CN200810122610 A CN 200810122610A CN 101318791 A CN101318791 A CN 101318791A
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- China
- Prior art keywords
- minutes
- cement
- trolamine
- percent
- cement grinding
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- C04B40/0046—Premixtures of ingredients characterised by their processing, e.g. sequence of mixing the ingredients when preparing the premixtures
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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
- C04B2103/52—Grinding aids; Additives added during grinding
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00068—Mortar or concrete mixtures with an unusual water/cement ratio
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/26—Corrosion of reinforcement resistance
Landscapes
- 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 discloses a liquid cement grinding aid. The grinding aid consists of the following compositions in weight percentage: 5 to 20 percent of trolamine, 5 to 20 percent of diglycol, 10 to 30 percent of lactose, 1 to 5 percent of triterpenoid saponin air entraining agent, 1 to 5 percent of sodium lignosulphonate and the balance being water. The technical proposal has a function of properly entraining air to reduce the water consumption of the cement standard consistence. The further optimum proposal of the invention is to add sodium nitrite with a mass ration of between 5 and 20 percent based on the technical proposal. The technical proposal can improve the later strength of cement and enhance the corrosion-inhibiting capability of reinforced concrete; meanwhile, the invention also discloses a preparation method of the liquid cement grinding aid.
Description
Technical field
The present invention relates to a kind of cement and make the cement grinding aid in field, is a kind of liquid cement grinding additive and preparation method thereof specifically.
Background technology
Domestic water cement grinding aids product has powder and two kinds of forms of liquid at present.Because liquid product is easy to use, only need to increase a storage tank and a microprocessor pump drive, just can add smoothly, do not need complicated heavy equipment, therefore used widely gradually.Liquid cement grinding additive, its prescription can basic fixed, do not need as the concrete admixture product in order to adapt to the often needs change of cement and changes of seasons prescription, it mainly is single or combination products such as amine, ethylene glycol, acetate that the prescription of existing liquid cement grinding additive is formed.Because these products, it is few to have a volume, and liquid meter adds convenient, improves mill grinding efficiency 10～20%, saves the unit time power consumption, improves the flowability of cement powder, helps bulk shipment and storage, so the cement factory use is very general abroad.
Domestic a kind of typical liquid cement grinding additive, it is made up of trolamine, ethylene glycol, Ammoniom-Acetate, urea, alkyl polyglycoside, sodium humate, fatty alcohol-polyoxyethylene ether and spent pulping liquor.External a kind of typical liquid grinding aid patent, it is by ethylene glycol, sodium-acetate, urea, hydroxyalkyl amine, N, compositions such as two (2-hydroxyethyl)-N-(2 hydroxypropyl) amine, three (the 2-hydroxyl butyl) amine of N-, xylogen.The prescription composition of these liquid grinding aids all exists some defectives: the material that does not have to add the consumptive use of water normal consistence that can play remarkable reduction cement; Alkali behind urea and the hydrated cementitious reacts, and can emit ammonia, and is unfavorable to the covil construction living environment; There is not to add the material that the cement later strength is played remarkable enhancement.
Summary of the invention
Technical problem to be solved by this invention, be to overcome the above-mentioned defective that prior art exists, a kind of liquid cement grinding additive is provided, has suitable bleed and significantly reduce the effect of cement normal consistency water consumption and improve the later strength of cement and performance such as the concrete resistance rust of reinforcing steel bar ability.
A kind of liquid cement grinding additive of the present invention, form by trolamine, glycol ether, lactose, triterpenoid saponin air entrapment agent, sodium lignosulfonate and water, each constituent mass per-cent: trolamine 5%～20%, glycol ether 5%～20%, lactose 10～30%, triterpenoid saponin air entrapment agent 1～5%, sodium lignosulfonate 1～5%, surplus is a water.The technical program has the effect that suitable bleed reduces cement normal consistency water consumption.
The further prioritization scheme of the present invention is: at the Sodium Nitrite of the middle increase mass percent 5～20% of technique scheme.The technical program has the later strength of raising cement and the performance of the concrete resistance rust of reinforcing steel bar ability.
The preparation method of aforesaid liquid cement grinding aid of the present invention the steps include: to inject 30～40 ℃ hot water in reactor, triterpenoid saponin air entrapment agent and sodium lignosulfonate are added stirring 15 minutes, adds lactose then and stirs 10 minutes; Material in the reactor filters with 150 eye mesh screens; Add glycol ether and trolamine and stirred 20 minutes, obtain the grinding aid product.
The preparation method of aforesaid liquid cement grinding aid of the present invention, its step can also be: inject 30～40 ℃ hot water in reactor, triterpenoid saponin air entrapment agent and sodium lignosulfonate are added stirring 15 minutes, add lactose then and stirred 10 minutes; Adding Sodium Nitrite again stirred 10 minutes; Material in the reactor filters with 150 eye mesh screens; Add glycol ether and trolamine and stirred 20 minutes, obtain the grinding aid product.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail.
Embodiment 1: a kind of liquid cement grinding additive, form by trolamine, glycol ether, lactose, triterpenoid saponin air entrapment agent and sodium lignosulfonate, each constituent mass per-cent: trolamine 5%, glycol ether 20%, lactose 30%, triterpenoid saponin air entrapment agent 1%, sodium lignosulfonate 5%, surplus is a water.
Embodiment 2: a kind of liquid cement grinding additive, form by trolamine, glycol ether, lactose, triterpenoid saponin air entrapment agent and sodium lignosulfonate, each constituent mass per-cent: trolamine 20%, glycol ether 5%, lactose 10%, triterpenoid saponin air entrapment agent 5%, sodium lignosulfonate 1%, surplus is a water.
3 one kinds of liquid cement grinding additives of embodiment, form by trolamine, glycol ether, lactose, triterpenoid saponin air entrapment agent and sodium lignosulfonate, each constituent mass per-cent: trolamine 10%, glycol ether 15%, lactose 15%, triterpenoid saponin air entrapment agent 3%, sodium lignosulfonate 3%, surplus is a water.
Embodiment 4: prepare the method for embodiment 1,2 or 3 described liquid cement grinding additives, the steps include: to inject 30～40 ℃ hot water in reactor, triterpenoid saponin air entrapment agent and sodium lignosulfonate are added stirring 15 minutes, add lactose then and stirred 10 minutes; Material in the reactor filters with 150 eye mesh screens; Add glycol ether and trolamine and stirred 20 minutes, obtain the grinding aid product.
Embodiment 5: substantially the same manner as Example 1, different is: the Sodium Nitrite that increases mass percent 20%.
Embodiment 6: substantially the same manner as Example 2, different is: the Sodium Nitrite that increases mass percent 5%.
Embodiment 7: substantially the same manner as Example 3 different is: the Sodium Nitrite that increases mass percent 10%.
Embodiment 8: prepare the method for embodiment 5,6 or 7 described liquid cement grinding additives, the steps include: to inject 30～40 ℃ hot water in reactor, triterpenoid saponin air entrapment agent and sodium lignosulfonate are added stirring 15 minutes, add lactose then and stirred 10 minutes; And then the adding Sodium Nitrite stirred 10 minutes; Material in the reactor filters with 150 eye mesh screens; Add glycol ether and trolamine and stirred 20 minutes, obtain the grinding aid product.
This product is the liquid of homogeneous, and product is easy to use, and cement factory only needs to increase a storage tank and a microprocessor pump drive, just can add smoothly, does not need complicated heavy equipment.This product is mixed by polyalcohol amine, polyvalent alcohol, special enhancement component and part fluidizer, and outward appearance is a brown liquid, PH (10% concentration)=9～12, proportion (20 ℃): 1.10～1.25g/cm
3, viscosity is 30～80cps (centipoise).Be applicable to ordinary Portland cement, pulverized fuel ash cement and composite Portland cement, volume is 0.02%～0.04%.Volume is few, does not change Cement Production technology, and metering is convenient.Trolamine and glycol ether play grinding aid and dissemination, and lactose is very effective to scoriaceous grinding aid, and triterpenoid saponin air entrapment agent and sodium lignosulfonate play auxiliary grinding aid effect and also have suitable bleed significantly to reduce the effect of cement normal consistency water consumption.Sodium Nitrite has very big benefit for the later strength and the concrete resistance rust of the reinforcing steel bar ability that improve cement.Existing liquid grinding aid does not consider to reduce cement normal consistency water consumption, alkali in urea and the concrete reacts and to emit ammonia unfavorable for the covil construction human settlement, Sodium Nitrite is favourable to improving cement or late strength of concrete, moreover it is good to the adaptability of concrete admixture, is the ideal strongthener.
Claims (4)
1, a kind of liquid cement grinding additive, form by trolamine, glycol ether, lactose, triterpenoid saponin air entrapment agent, sodium lignosulfonate and water, each constituent mass per-cent: trolamine 5%～20%, glycol ether 5%～20%, lactose 10～30%, triterpenoid saponin air entrapment agent 1～5%, sodium lignosulfonate 1～5%, surplus is a water.
2, according to the described liquid cement grinding additive of claim 1, it is characterized in that: the Sodium Nitrite that increases mass percent 5～20%.
3, the preparation method of the described liquid cement grinding additive of a kind of claim 1 the steps include: to inject 30～40 ℃ hot water in reactor, triterpenoid saponin air entrapment agent and sodium lignosulfonate are added stirring 15 minutes, adds lactose then and stirs 10 minutes; Material in the reactor filters with 150 eye mesh screens; Adding glycol ether and trolamine stirred 20 minutes.
4, the preparation method of the described liquid cement grinding additive of a kind of claim 2 the steps include: to inject 30～40 ℃ hot water in reactor, triterpenoid saponin air entrapment agent and sodium lignosulfonate are added stirring 15 minutes, adds lactose then and stirs 10 minutes; Adding Sodium Nitrite again stirred 10 minutes; Material in the reactor filters with 150 eye mesh screens; Adding glycol ether and trolamine stirred 20 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101226103A CN101318791A (en) | 2008-06-03 | 2008-06-03 | Liquid cement grinding aid and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101226103A CN101318791A (en) | 2008-06-03 | 2008-06-03 | Liquid cement grinding aid and preparation method thereof |
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| CN101318791A true CN101318791A (en) | 2008-12-10 |
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| CNA2008101226103A Pending CN101318791A (en) | 2008-06-03 | 2008-06-03 | Liquid cement grinding aid and preparation method thereof |
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| CN (1) | CN101318791A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060461A (en) * | 2010-12-03 | 2011-05-18 | 安徽新创建材科技有限公司 | Cement composite grinding aid and preparation method thereof |
| CN101708972B (en) * | 2009-11-19 | 2012-01-11 | 阳城县洎鑫建材有限公司 | Liquid composite cement grinding aid and preparation method thereof |
| CN102372454A (en) * | 2010-08-16 | 2012-03-14 | 广州基业长青化工有限公司 | Cement grinding aid |
| CN102584078A (en) * | 2012-03-13 | 2012-07-18 | 济南高新区工业废弃物利用研发中心 | Chlorine-free low-alkali organic cement grinding aid |
| CN103938478A (en) * | 2014-04-16 | 2014-07-23 | 芜湖富祺科技有限公司 | Cement grinding aid and method for fabricating cement grinding aid by using papermaking waste liquor |
| 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 |
| CN104755444A (en) * | 2012-11-05 | 2015-07-01 | Sika技术股份公司 | Milling aid for cement clinker based on polycarboxylate ethers and/or lignosulphonates |
| CN105271881A (en) * | 2015-11-04 | 2016-01-27 | 江苏名和集团有限公司 | Cement grinding aid and preparation method and use method thereof |
| CN106242333A (en) * | 2016-08-08 | 2016-12-21 | 中建海峡建设发展有限公司 | A kind of tufa stone powder as additive for concrete and preparation method thereof |
| CN108358495A (en) * | 2018-04-23 | 2018-08-03 | 华润水泥技术研发（广西）有限公司 | A kind of research work of air entrained type grinding aid and application thereof improving cement thick liquid flowability |
| CN108821631A (en) * | 2018-08-24 | 2018-11-16 | 浙江长盈建材科技有限公司 | A kind of sugar-free cement grinding aid and preparation method thereof |
| CN108840591A (en) * | 2018-09-17 | 2018-11-20 | 浙江长盈建材科技有限公司 | A kind of cement grinding aid and preparation method thereof improving grinding effect |
| CN109020291A (en) * | 2018-08-24 | 2018-12-18 | 浙江长盈建材科技有限公司 | A kind of lower cement grinding aid of water content and preparation method thereof |
| CN109231862A (en) * | 2018-09-17 | 2019-01-18 | 浙江长盈建材科技有限公司 | A kind of environment-friendly type water cement grinding aids and preparation method thereof |
-
2008
- 2008-06-03 CN CNA2008101226103A patent/CN101318791A/en active Pending
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708972B (en) * | 2009-11-19 | 2012-01-11 | 阳城县洎鑫建材有限公司 | Liquid composite cement grinding aid and preparation method thereof |
| CN102372454A (en) * | 2010-08-16 | 2012-03-14 | 广州基业长青化工有限公司 | Cement grinding aid |
| CN102372454B (en) * | 2010-08-16 | 2013-11-27 | 广东基业长青节能环保实业有限公司 | Cement grinding aid |
| CN102060461A (en) * | 2010-12-03 | 2011-05-18 | 安徽新创建材科技有限公司 | Cement composite grinding aid and preparation method thereof |
| CN102060461B (en) * | 2010-12-03 | 2013-07-17 | 安徽新创建材科技有限公司 | Cement composite grinding aid and preparation method thereof |
| CN102584078A (en) * | 2012-03-13 | 2012-07-18 | 济南高新区工业废弃物利用研发中心 | Chlorine-free low-alkali organic cement grinding aid |
| CN102584078B (en) * | 2012-03-13 | 2013-10-23 | 济南丞华环保科技发展中心 | Chlorine-free low-alkali organic cement grinding aid |
| US9458060B2 (en) | 2012-11-05 | 2016-10-04 | Sika Technology Ag | Grinding aid for cement clinker based on polycarboxylate ethers and/or lignosulfonates |
| CN104755444A (en) * | 2012-11-05 | 2015-07-01 | Sika技术股份公司 | Milling aid for cement clinker based on polycarboxylate ethers and/or lignosulphonates |
| CN103938478A (en) * | 2014-04-16 | 2014-07-23 | 芜湖富祺科技有限公司 | Cement grinding aid and method for fabricating cement grinding aid by using papermaking waste liquor |
| 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 |
| 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 |
| CN105271881A (en) * | 2015-11-04 | 2016-01-27 | 江苏名和集团有限公司 | Cement grinding aid and preparation method and use method thereof |
| CN106242333A (en) * | 2016-08-08 | 2016-12-21 | 中建海峡建设发展有限公司 | A kind of tufa stone powder as additive for concrete and preparation method thereof |
| CN106242333B (en) * | 2016-08-08 | 2018-06-26 | 中建海峡建设发展有限公司 | It is a kind of for tufa stone powder as additive of concrete and preparation method thereof |
| CN108358495A (en) * | 2018-04-23 | 2018-08-03 | 华润水泥技术研发（广西）有限公司 | A kind of research work of air entrained type grinding aid and application thereof improving cement thick liquid flowability |
| CN108821631A (en) * | 2018-08-24 | 2018-11-16 | 浙江长盈建材科技有限公司 | A kind of sugar-free cement grinding aid and preparation method thereof |
| CN109020291A (en) * | 2018-08-24 | 2018-12-18 | 浙江长盈建材科技有限公司 | A kind of lower cement grinding aid of water content and preparation method thereof |
| CN108840591A (en) * | 2018-09-17 | 2018-11-20 | 浙江长盈建材科技有限公司 | A kind of cement grinding aid and preparation method thereof improving grinding effect |
| CN109231862A (en) * | 2018-09-17 | 2019-01-18 | 浙江长盈建材科技有限公司 | A kind of environment-friendly type water cement grinding aids and preparation method thereof |
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Application publication date: 20081210 |