CN107601954A - A kind of cement grinding aid and preparation method thereof - Google Patents

A kind of cement grinding aid and preparation method thereof Download PDF

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Publication number
CN107601954A
CN107601954A CN201711103054.0A CN201711103054A CN107601954A CN 107601954 A CN107601954 A CN 107601954A CN 201711103054 A CN201711103054 A CN 201711103054A CN 107601954 A CN107601954 A CN 107601954A
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Prior art keywords
cement
grinding aid
cement grinding
microcrystalline cellulose
water
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CN201711103054.0A
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CN107601954B (en
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孙少飞
王延国
王晓冉
王华德
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DONGHAI CONSTRUCTION GROUP Co Ltd
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DONGHAI CONSTRUCTION GROUP Co Ltd
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Abstract

The invention discloses a kind of cement grinding aid and preparation method thereof, cement grinding aid includes the component of following mass content:Polyethylene glycol 5 10%, sorbierite 5 10%, polyglyceryl fatty acid ester 1 3%, diethanol monoisopropanolamine 5 10%, triisopropanolamine 5 10%, sodium hydroxide 1 5%, Sodium Polyacrylate 2 8%, microcrystalline cellulose 1 5%, remainder is water.The beneficial effects of the invention are as follows:The present invention does not fill the material for influenceing concrete performance and building service life and being detrimental to health, safety and environmental protection;It can be acted synergistically between each raw material, be advantageous to the reduction of cement fineness, ensure its rational size distribution, reduce the early hydration rate of heat release of Adding Mineral Admixtures cement and improve strength of cement;In the case where ensureing strength of cement and use condition, production cost can be reduced, improves the economic benefit and social benefit of cement production enterprise.

Description

A kind of cement grinding aid and preparation method thereof
Technical field
The present invention relates to cement additive field, more particularly to a kind of cement grinding aid and preparation method thereof.
Background technology
Cement is increasingly becoming the basis of human lives' development as the construction material that purposes is most wide, usage amount is maximum, and Within coming few decades, cement will be the primary building material of social development.With the development and progress of cement industry, improve Cement performance and quality have a variety of methods, and commonly used is to fill cement grinding aid among the process of cement grinding.It is logical The mill efficiency of grinding machine can be significantly improved by crossing admixture cement grinding aid, reduce power consumption and steel ball loss, improve cement production Amount.
Cement grinding aid divides powdery cement grinding aid and liquid cement grinding additive.Because powdery cement grinding aid needs to fill Amount it is higher, and powdery cement grinding aid is more using technical pure compound organic salt and inorganic salts as primary raw material, can cause to give birth to The chloride ion in cement content that output is come is higher, it is difficult to reaches grinding aid addition in new nation's standard and is no more than cement weight 0.5% and chloride ion in cement content should be not more than 0.06% requirement, and the salt ion content of liquid cement grinding additive is low, And it is convenient that it is added, therefore application of the liquid cement grinding additive in current manufacture of cement is than wide.But existing liquid Body cement grinding aid also has the following disadvantages:Grinding aid product cost is higher;Potent fruit is carried not to the cement of large dosage lime stone Substantially;Containing harmful components such as the chlorions for having an impact building service life;Grinding aid quality is unstable, and volume is big, so as to lead Cause cement quality fluctuation.
The content of the invention
For insufficient existing for existing cement industry, the invention provides a kind of cost is low, addition content is few, without chlorion and There are the cement grinding aid and preparation method of preferable stimulation effect to strength of cement;Cement grinding aid provided by the invention has production The characteristics of process is simple and convenient to operate and production efficiency is high.
In order to realize foregoing invention purpose, the invention provides a kind of cement grinding aid, by the group of following mass percent It is grouped into:Polyethylene glycol 5-10%, sorbierite 5-10%, polyglyceryl fatty acid ester 1-3%, diethanol monoisopropanolamine 5-10%, three Isopropanolamine 5-10%, sodium hydroxide 1-5%, Sodium Polyacrylate 2-8%, microcrystalline cellulose 1-5%, remainder are water.
Preferably, present invention also offers a kind of cement grinding aid, it is made up of the component of following mass percent:It is poly- Ethylene glycol 6-9%, sorbierite 6-9%, polyglyceryl fatty acid ester 1-2%, diethanol monoisopropanolamine 6-9%, triisopropanolamine 6-9%, Sodium hydroxide 2-4%, Sodium Polyacrylate 3-7%, microcrystalline cellulose 2-4%, remainder are water.
Preferably, present invention also offers a kind of cement grinding aid, it is made up of the component of following mass percent:It is poly- Ethylene glycol 8%, sorbierite 8%, polyglyceryl fatty acid ester 1%, diethanol monoisopropanolamine 8%, triisopropanolamine 6%, sodium hydroxide 3%th, Sodium Polyacrylate 5%, microcrystalline cellulose 3%, remainder is water.
Preferably, present invention also offers a kind of cement grinding aid, it is made up of the component of following mass percent:It is poly- Ethylene glycol 9%, sorbierite 7%, polyglyceryl fatty acid ester 2%, diethanol monoisopropanolamine 7%, triisopropanolamine 7%, sodium hydroxide 4%th, Sodium Polyacrylate 4%, microcrystalline cellulose 2%, remainder are water.
Preferably, present invention also offers a kind of cement grinding aid, it is made up of the component of following mass percent:It is poly- Ethylene glycol 6%, sorbierite 9%, polyglyceryl fatty acid ester 3%, diethanol monoisopropanolamine 9%, triisopropanolamine 6%, sodium hydroxide 5%th, Sodium Polyacrylate 3%, microcrystalline cellulose 4%, remainder are water.
In order to preferably realize foregoing invention purpose, present invention also offers a kind of preparation method of cement grinding aid, bag Include following steps:
Step 1:Sodium hydroxide is weighed according to the mass percent, and is dissolved in the water of the mass percent, is stirred Afterwards, room temperature, obtained solution one are down to;
Step 2:Sodium Polyacrylate is weighed according to the mass percent, is dissolved in the solution one, after having dissolved, stirring is equal It is even, obtained solution two;
Step 3:Weighed according to the percetage by weight other in addition to sodium hydroxide, Sodium Polyacrylate and microcrystalline cellulose Raw material, sequentially add in the solution two, stir, obtained solution three;
Step 4:Microcrystalline cellulose is weighed according to the percetage by weight, and adds the solution three, is stirred, water is made Cement grinding aids.
The beneficial effects of the invention are as follows:The present invention, which does not fill, to be influenceed concrete performance and building service life and endangers people The material of body health, safety and environmental protection;It can be acted synergistically between each raw material, be advantageous to the reduction of cement fineness, ensure its grain Degree is reasonably distributed, reduced the early hydration rate of heat release of Adding Mineral Admixtures cement and improves strength of cement;Ensureing cement Under intensity and use condition, production cost can be reduced, improves the economic benefit and social benefit of cement production enterprise.
Brief description of the drawings
Fig. 1 is the hydration heat of cement temperature curve of the blank sample of contrast experiment one of the present invention and test sample.
Fig. 2 is the hydration heat of cement heat release rate profile of the blank sample of contrast experiment one of the present invention and test sample.
Fig. 3 is the control sample cement of contrast experiment two of the present invention and each age compression strength correlation curve from sample preparation cement.
Embodiment
The invention provides a kind of cement grinding aid, from polyethylene glycol, sorbierite, polyglyceryl fatty acid ester, diethanol The effect of monoisopropanolamine and triisopropanolamine, grinding aid and activity excitation is preferable;With powder porous microcrystalline cellulose phase interworking Close, effectively reduce the reunion of particle in powder process;Again work is cooperateed with enhancing components such as sodium hydroxide and Sodium Polyacrylates With, be advantageous to the reduction of cement fineness, ensure its rational size distribution, improve strength of cement.
For the technical characterstic for illustrating this programme can be understood, below by embodiment, this programme is illustrated.
Embodiment 1
The embodiments of the invention provide a kind of cement grinding aid, the component of following mass content is included:Polyethylene glycol 8%, sorbierite 8%th, polyglyceryl fatty acid ester 1%, diethanol monoisopropanolamine 8%, triisopropanolamine 6%, sodium hydroxide 3%, Sodium Polyacrylate 5%, Microcrystalline cellulose 3%, remainder are water.
Follow the steps below preparation:
Step 1:Sodium hydroxide is weighed according to 3% proportioning, and is dissolved in the water of prescription quality percentage, after stirring, is down to room Temperature, obtained solution one;
Step 2:Sodium Polyacrylate is weighed according to 5% proportioning, is dissolved in the solution one, after having dissolved, stirs, be made molten Liquid two;
Step 3:Weigh polyethylene glycol 8%, sorbierite 8%, polyglyceryl fatty acid ester 1%, diethanol monoisopropanolamine 8%, three isopropyls Hydramine 6%, sequentially add in the solution two, stir, obtained solution three;
Step 4:Microcrystalline cellulose is weighed according to 3% proportioning, and adds the solution three, stirs, cement grinding aid is made.
Embodiment 2
The embodiments of the invention provide a kind of cement grinding aid, the component of following mass content is included:Polyethylene glycol 9%, sorbierite 7%th, polyglyceryl fatty acid ester 2%, diethanol monoisopropanolamine 7%, triisopropanolamine 7%, sodium hydroxide 4%, Sodium Polyacrylate 4%, Microcrystalline cellulose 2%, remainder are water.
Follow the steps below preparation:
Step 1:Sodium hydroxide is weighed according to 4% proportioning, and is dissolved in the water of prescription quality percentage, after stirring, is down to room Temperature, obtained solution one;
Step 2:Sodium Polyacrylate is weighed according to 4% proportioning, is dissolved in the solution one, after having dissolved, stirs, be made molten Liquid two;
Step 3:Weigh polyethylene glycol 9%, sorbierite 7%, polyglyceryl fatty acid ester 2%, diethanol monoisopropanolamine 7%, three isopropyls Hydramine 7%, sequentially add in the solution two, stir, obtained solution three;
Step 4:Microcrystalline cellulose is weighed according to 2% proportioning, and adds the solution three, stirs, cement grinding aid is made.
Embodiment 3
The embodiments of the invention provide a kind of cement grinding aid, the component of following mass content is included:Polyethylene glycol 6%, sorbierite 9%th, polyglyceryl fatty acid ester 3%, diethanol monoisopropanolamine 9%, triisopropanolamine 6%, sodium hydroxide 5%, Sodium Polyacrylate 3%, Microcrystalline cellulose 4%, remainder are water.
Follow the steps below preparation:
Step 1:Sodium hydroxide is weighed according to 5% proportioning, and is dissolved in the water of prescription quality percentage, after stirring, is down to room Temperature, obtained solution one;
Step 2:Sodium Polyacrylate is weighed according to 3% proportioning, is dissolved in the solution one, after having dissolved, stirs, be made molten Liquid two;
Step 3:Weigh polyethylene glycol 6%, sorbierite 9%, polyglyceryl fatty acid ester 3%, diethanol monoisopropanolamine 9%, three isopropyls Hydramine 6%, sequentially add in the solution two, stir, obtained solution three;
Step 4:Microcrystalline cellulose is weighed according to 4% proportioning, and adds the solution three, stirs, cement grinding aid is made.
Contrast experiment one
The test sample produced respectively with not filling the blank sample of cement grinding aid with the cement grinding aid provided using embodiment 1-3 1-3 carries out contrast test.
The material and the cement grinding aid of 0.1% volume that 95% clinker that our company is commonly used and 5% gypsum form Grinding 30min in Ф 500mm*500mm cement ball mill is added to together, and blank sample cement and test sample water is made after going out mill Mud, then determine size distribution, hydration heat of cement and the cement physical properties of cement.Pass through the measure to its physical property, water Mud granularity distribution result is as shown in table 1, and as depicted in figs. 1 and 2, cement physical properties are as shown in table 2 for hydrated cementitious heating curve.
The size distribution of the cement of table 1
Influence of the cement grinding aid of table 2 to cement performance
From in table 1-2 and Fig. 1-2, after the cement grinding aid of the present invention is added, the grain composition of cement is more reasonable, water Mud fineness reduce, specific surface area increase, fill grinding aid hydrated cementitious speed accelerate, its 3d and 28d solidification after pressure resistance Degree has significant raising.
Contrast experiment two
Cement grinding aid sample and the cement grinding aid production using embodiment 1-3 as a comparison of certain commercially available brand is respectively adopted 42.5 cement carry out contrast test.
The material that 70% clinker, 5% gypsum and 25% slag powders that our company is commonly used form is mixed with 0.1% The cement grinding aid of amount is added to grinding 30min in Ф 500mm*500mm cement ball mill together, goes out after mill obtained pair respectively Than sample cement and from sample preparation 1-3 cement, the size distribution of cement and each age strength of cement are then determined.By to its thing The measure of rationality energy, cement granularity distribution result is as shown in table 3, and each age strength of cement is as shown in Figure 3.
The size distribution of the cement of table 3
From table 3 and Fig. 3, cement grinding aid of the invention is applied in cement grinding, and with using certain brand cement The cement of agent production is contrasted, and the cement fineness produced using the cement grinding aid of the present invention is smaller, specific surface area is bigger, water The size distribution of mud more optimizes, the later stage compression strength of cement is significantly improved.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.

Claims (6)

1. a kind of cement grinding aid, it is characterised in that be made up of the raw material of following mass percent:Polyethylene glycol 5-10%, sorb Alcohol 5-10%, polyglyceryl fatty acid ester 1-3%, diethanol monoisopropanolamine 5-10%, triisopropanolamine 5-10%, sodium hydroxide 1- 5%th, Sodium Polyacrylate 2-8%, microcrystalline cellulose 1-5%, remainder are water.
2. cement grinding aid according to claim 1, it is characterised in that be made up of the component of following mass percent:It is poly- Ethylene glycol 6-9%, sorbierite 6-9%, polyglyceryl fatty acid ester 1-2%, diethanol monoisopropanolamine 6-9%, triisopropanolamine 6-9%, Sodium hydroxide 2-4%, Sodium Polyacrylate 3-7%, microcrystalline cellulose 2-4%, remainder are water.
3. cement grinding aid according to claim 1 or 2, it is characterised in that be made up of the component of following mass percent: Polyethylene glycol 8%, sorbierite 8%, polyglyceryl fatty acid ester 1%, diethanol monoisopropanolamine 8%, triisopropanolamine 6%, sodium hydroxide 3%th, Sodium Polyacrylate 5%, microcrystalline cellulose 3%, remainder are water.
4. cement grinding aid according to claim 1 or 2, it is characterised in that be made up of the component of following mass percent: Polyethylene glycol 9%, sorbierite 7%, polyglyceryl fatty acid ester 2%, diethanol monoisopropanolamine 7%, triisopropanolamine 7%, sodium hydroxide 4%th, Sodium Polyacrylate 4%, microcrystalline cellulose 2%, remainder are water.
5. cement grinding aid according to claim 1 or 2, it is characterised in that be made up of the component of following mass percent: Polyethylene glycol 6%, sorbierite 9%, polyglyceryl fatty acid ester 3%, diethanol monoisopropanolamine 9%, triisopropanolamine 6%, sodium hydroxide 5%th, Sodium Polyacrylate 3%, microcrystalline cellulose 4%, remainder are water.
6. the preparation method of a kind of cement grinding aid as described in claim any one of 1-5, it is characterised in that including following step Suddenly:
Step 1:Sodium hydroxide is weighed according to the mass percent, and is dissolved in the water of the mass percent, is stirred Afterwards, room temperature, obtained solution one are down to;
Step 2:Sodium Polyacrylate is weighed according to the mass percent, is dissolved in the solution one, after having dissolved, stirring is equal It is even, obtained solution two;
Step 3:Weighed according to the percetage by weight other in addition to sodium hydroxide, Sodium Polyacrylate and microcrystalline cellulose Raw material, sequentially add in the solution two, stir, obtained solution three;
Step 4:Microcrystalline cellulose is weighed according to the percetage by weight, and adds the solution three, is stirred, water is made Cement grinding aids.
CN201711103054.0A 2017-11-10 2017-11-10 A kind of cement grinding aid and preparation method thereof Active CN107601954B (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109320129A (en) * 2018-10-22 2019-02-12 惠州市三化新技术有限公司 A kind of lignocellulose type cement grinding aid and preparation method thereof
CN111470796A (en) * 2020-03-31 2020-07-31 辽宁天宝华瑞建材有限公司 Cement grinding aid
CN112174570A (en) * 2020-10-10 2021-01-05 江苏润天建材有限公司 Environment-friendly cement grinding aid and preparation method thereof
CN114163162A (en) * 2021-12-24 2022-03-11 常州坚鹏建材有限公司 Mineral powder hardening grinding aid and grinding-aid process thereof
CN114477844A (en) * 2022-02-14 2022-05-13 株洲宏信科技发展有限公司 Cement raw material grinding aid and preparation method and application thereof
CN115784646A (en) * 2022-12-27 2023-03-14 中国铁道科学研究院集团有限公司铁道建筑研究所 Low-heat low-shrinkage portland cement and preparation method thereof
CN116730647A (en) * 2023-02-07 2023-09-12 临沂德艺科技发展有限公司 Cement activation enhancer and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080216716A1 (en) * 2003-12-03 2008-09-11 Mikhail Tselner Fresh Concrete and Admixture for Fresh Concrete
CN102126843A (en) * 2011-04-19 2011-07-20 鲁南中联水泥有限公司 Cement grinding aid and preparation method thereof
CN106365497A (en) * 2016-08-22 2017-02-01 桂林新艺制冷设备有限责任公司 High-efficiency cement grinding aid and cement thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080216716A1 (en) * 2003-12-03 2008-09-11 Mikhail Tselner Fresh Concrete and Admixture for Fresh Concrete
CN102126843A (en) * 2011-04-19 2011-07-20 鲁南中联水泥有限公司 Cement grinding aid and preparation method thereof
CN106365497A (en) * 2016-08-22 2017-02-01 桂林新艺制冷设备有限责任公司 High-efficiency cement grinding aid and cement thereof

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109320129A (en) * 2018-10-22 2019-02-12 惠州市三化新技术有限公司 A kind of lignocellulose type cement grinding aid and preparation method thereof
CN111470796A (en) * 2020-03-31 2020-07-31 辽宁天宝华瑞建材有限公司 Cement grinding aid
CN112174570A (en) * 2020-10-10 2021-01-05 江苏润天建材有限公司 Environment-friendly cement grinding aid and preparation method thereof
CN112174570B (en) * 2020-10-10 2022-05-03 江苏润天建材有限公司 Environment-friendly cement grinding aid and preparation method thereof
CN114163162A (en) * 2021-12-24 2022-03-11 常州坚鹏建材有限公司 Mineral powder hardening grinding aid and grinding-aid process thereof
CN114163162B (en) * 2021-12-24 2022-08-09 常州坚鹏建材有限公司 Mineral powder hardening grinding aid and grinding-aid process thereof
CN114477844A (en) * 2022-02-14 2022-05-13 株洲宏信科技发展有限公司 Cement raw material grinding aid and preparation method and application thereof
CN114477844B (en) * 2022-02-14 2022-11-04 株洲宏信科技发展有限公司 Cement raw meal grinding aid and preparation method and application thereof
CN115784646A (en) * 2022-12-27 2023-03-14 中国铁道科学研究院集团有限公司铁道建筑研究所 Low-heat low-shrinkage portland cement and preparation method thereof
CN116730647A (en) * 2023-02-07 2023-09-12 临沂德艺科技发展有限公司 Cement activation enhancer and preparation method thereof

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