CN107601954B - A kind of cement grinding aid and preparation method thereof - Google Patents
A kind of cement grinding aid and preparation method thereof Download PDFInfo
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- CN107601954B CN107601954B CN201711103054.0A CN201711103054A CN107601954B CN 107601954 B CN107601954 B CN 107601954B CN 201711103054 A CN201711103054 A CN 201711103054A CN 107601954 B CN107601954 B CN 107601954B
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Abstract
The invention discloses a kind of cement grinding aids 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 present invention are: the present invention does not add the substance for influencing concrete performance and building service life and being detrimental to health, safety and environmental protection；It can act synergistically between each raw material, be conducive to the reduction of cement fineness, guarantee 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 guaranteeing strength of cement and use condition, it can reduce production cost, improve the economic benefit and social benefit of cement production enterprise.
Description
Technical field
The present invention relates to cement additive field, in particular to a kind of cement grinding aid and preparation method thereof.
Background technique
Cement most wide, maximum construction material of usage amount as purposes is increasingly becoming the basis of human lives' development, and
Within coming few decades, cement will be the primary building material of social development.With the development and progress of cement industry, improve
There are many kinds of methods for cement performance and quality, and commonly used is to add cement grinding aid in the process of cement grinding.It is logical
Crossing admixture cement grinding aid can significantly improve the mill efficiency of grinding machine, reduce power consumption and steel ball loss, improves cement and produces
Amount.
Cement grinding aid divides powdery cement grinding aid and liquid cement grinding additive.Since powdery cement grinding aid needs to add
Amount it is relatively high, and powdery cement grinding aid will lead to life mostly using technical pure compound organic salt and inorganic salts as primary raw material
The chloride ion in cement content that output is come is higher, it is difficult to reach grinding aid additional amount in new nation's standard and be 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
There is also following deficiencies for body cement grinding aid: grinding aid product cost is higher；Potent fruit is mentioned not to the cement of large dosage lime stone
Obviously；Containing harmful components such as the chloride ions for having an impact building service life；Grinding aid unstable quality, volume is big, to lead
Cause cement quality fluctuation.
Summary of the invention
For deficiency existing for existing cement industry, the present invention provides it is a kind of it is at low cost, addition content is few, without chloride ion 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
Process is simple and convenient to operate and the characteristics of high production efficiency.
In order to achieve the above-mentioned object of the invention, the present invention provides a kind of cement grinding aids, by the group of following mass percent
It is grouped as: 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, the present invention also provides a kind of cement grinding aids, are grouped as by the group of following mass percent: 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, the present invention also provides a kind of cement grinding aids, are grouped as by the group of following mass percent: poly-
Ethylene glycol 8%, sorbierite 8%, polyglyceryl fatty acid ester 1%, diethanol monoisopropanolamine 8%, triisopropanolamine 6%, sodium hydroxide
3%, Sodium Polyacrylate 5%, microcrystalline cellulose 3%, remainder is water.
Preferably, the present invention also provides a kind of cement grinding aids, are grouped as by the group of following mass percent: poly-
Ethylene glycol 9%, sorbierite 7%, polyglyceryl fatty acid ester 2%, diethanol monoisopropanolamine 7%, triisopropanolamine 7%, sodium hydroxide
4%, Sodium Polyacrylate 4%, microcrystalline cellulose 2%, remainder are water.
Preferably, the present invention also provides a kind of cement grinding aids, are grouped as by the group of following mass percent: poly-
Ethylene glycol 6%, sorbierite 9%, polyglyceryl fatty acid ester 3%, diethanol monoisopropanolamine 9%, triisopropanolamine 6%, sodium hydroxide
5%, Sodium Polyacrylate 3%, microcrystalline cellulose 4%, remainder are water.
In order to preferably realize foregoing invention purpose, the present invention also provides a kind of preparation method of cement grinding aid, packets
Include following steps:
Step 1: weighing sodium hydroxide according to the mass percent, and be dissolved in the water of the mass percent, and stirring is equal
After even, it is down to room temperature, obtained solution one；
Step 2: weighing Sodium Polyacrylate according to the mass percent, is dissolved in the solution one, after having dissolved, stirs
It mixes uniformly, obtained solution two；
Step 3: it is weighed in addition to sodium hydroxide, Sodium Polyacrylate and microcrystalline cellulose according to the weight percent
Other raw materials are sequentially added in the solution two, are stirred evenly, obtained solution three；
Step 4: weighing microcrystalline cellulose according to the weight percent, and the solution three is added, and stirs evenly, system
Obtain cement grinding aid.
The beneficial effects of the present invention are: the present invention, which does not add, to be influenced concrete performance and building service life and endangers people
The substance of body health, safety and environmental protection；It can act synergistically between each raw material, be conducive to the reduction of cement fineness, guarantee its grain
Degree is reasonably distributed, reduces the early hydration rate of heat release of Adding Mineral Admixtures cement and improves strength of cement；Guaranteeing cement
Under intensity and use condition, production cost can reduce, improve the economic benefit and social benefit of cement production enterprise.
Detailed description of the invention
Fig. 1 is the hydration heat of cement temperature curve of one blank sample of comparative experiments and test sample of the present invention.
Fig. 2 is the hydration heat of cement heat release rate profile of one blank sample of comparative experiments and test sample of the present invention.
Fig. 3 is two comparative sample cement of comparative experiments of the present invention and each age compression strength correlation curve from sample preparation cement.
Specific embodiment
The present invention provides a kind of cement grinding aids, select 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
It closes, effectively reduces the reunion of particle in powder process；Work is cooperateed with enhancing components such as sodium hydroxide and Sodium Polyacrylates again
With, be conducive to the reduction of cement fineness, guarantee its rational size distribution, improve strength of cement.
In order to clarify the technical characteristics of the invention, being illustrated below by specific embodiment to this programme.
Embodiment 1
The embodiment of the invention provides a kind of cement grinding aid, the component comprising following mass content: polyethylene glycol 8%, mountain
Pears alcohol 8%, 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: weighing sodium hydroxide according to 3% proportion, and be dissolved in the water of prescription quality percentage, after mixing evenly, drop
To room temperature, obtained solution one；
Step 2: Sodium Polyacrylate is weighed according to 5% proportion, is dissolved in the solution one, after having dissolved, stirs evenly, make
Obtain solution two；
Step 3: polyethylene glycol 8%, sorbierite 8%, polyglyceryl fatty acid ester 1%, diethanol monoisopropanolamine 8%, three are weighed
Isopropanolamine 6% is sequentially added in the solution two, is stirred evenly, obtained solution three；
Step 4: microcrystalline cellulose is weighed according to 3% proportion, and the solution three is added, is stirred evenly, obtained cement helps
Grinding agent.
Embodiment 2
The embodiment of the invention provides a kind of cement grinding aid, the component comprising following mass content: polyethylene glycol 9%, mountain
Pears alcohol 7%, 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: weighing sodium hydroxide according to 4% proportion, and be dissolved in the water of prescription quality percentage, after mixing evenly, drop
To room temperature, obtained solution one；
Step 2: Sodium Polyacrylate is weighed according to 4% proportion, is dissolved in the solution one, after having dissolved, stirs evenly, make
Obtain solution two；
Step 3: polyethylene glycol 9%, sorbierite 7%, polyglyceryl fatty acid ester 2%, diethanol monoisopropanolamine 7%, three are weighed
Isopropanolamine 7% is sequentially added in the solution two, is stirred evenly, obtained solution three；
Step 4: microcrystalline cellulose is weighed according to 2% proportion, and the solution three is added, is stirred evenly, obtained cement helps
Grinding agent.
Embodiment 3
The embodiment of the invention provides a kind of cement grinding aid, the component comprising following mass content: polyethylene glycol 6%, mountain
Pears alcohol 9%, 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: weighing sodium hydroxide according to 5% proportion, and be dissolved in the water of prescription quality percentage, after mixing evenly, drop
To room temperature, obtained solution one；
Step 2: Sodium Polyacrylate is weighed according to 3% proportion, is dissolved in the solution one, after having dissolved, stirs evenly, make
Obtain solution two；
Step 3: polyethylene glycol 6%, sorbierite 9%, polyglyceryl fatty acid ester 3%, diethanol monoisopropanolamine 9%, three are weighed
Isopropanolamine 6% is sequentially added in the solution two, is stirred evenly, obtained solution three；
Step 4: microcrystalline cellulose is weighed according to 4% proportion, and the solution three is added, is stirred evenly, obtained cement helps
Grinding agent.
Comparative experiments one
Respectively not add the blank sample of cement grinding aid and using the examination of the embodiment 1-3 cement grinding aid production provided
It tests sample 1-3 and compares test.
By the cement grinding aid of the material and 0.1% volume of the clinker of our company common 95% and 5% gypsum composition
It is added to grinding 30min in the cement ball mill of Ф 500mm*500mm together, blank sample cement and test sample water is made after grinding out
Then mud measures size distribution, hydration heat of cement and the cement physical properties of cement.Pass through the measurement to its physical property, water
Mud granularity distribution result is as shown in table 1, and hydrated cementitious heating curve is as depicted in figs. 1 and 2, and cement physical properties are as shown in table 2.
The size distribution of 1 cement of table
Influence of 2 cement grinding aid of table to cement performance
By in table 1-2 and Fig. 1-2 it is found that after cement grinding aid of the invention is added, the grain composition of cement more adduction
Reason, cement fineness reduce, and specific surface area increases, and the hydrated cementitious rate for adding grinding aid is accelerated, 3d and 28d solidify after resist
Compressive Strength has significant raising.
Comparative experiments two
Cement grinding aid sample and the cement grinding aid life using embodiment 1-3 as a comparison of certain commercially available brand is respectively adopted
42.5 cement produced compare test.
By common 70% clinker of our company, 5% gypsum and 25% slag powders composition material mixed with 0.1%
The cement grinding aid of amount is added to grinding 30min in the cement ball mill of Ф 500mm*500mm together, obtained pair respectively after grinding out
Than sample cement and from sample preparation 1-3 cement, then measure cement size distribution and each age strength of cement.By to its object
The measurement of rationality energy, the results are shown in Table 3 for cement granularity distribution, and each age strength of cement is as shown in Figure 3.
The size distribution of 3 cement of table
By table 3 and Fig. 3 it is found that cement grinding aid of the invention be applied to cement grinding in, and with use certain brand cement
The cement of grinding aid production compares, the cement fineness produced using cement grinding aid of the invention is smaller, specific surface area more
Greatly, the size distribution of cement more optimizes, the later period compression strength of cement is significantly improved.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of cement grinding aid, which is characterized in that be made 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%, Sodium Polyacrylate 2-8%, microcrystalline cellulose 1-5%, remainder are water.
2. cement grinding aid according to claim 1, which is characterized in that be grouped as by the group of following mass percent: 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, which is characterized in that be grouped as by the group of following mass percent:
Polyethylene glycol 8%, sorbierite 8%, polyglyceryl fatty acid ester 1%, diethanol monoisopropanolamine 8%, triisopropanolamine 6%, sodium hydroxide
3%, Sodium Polyacrylate 5%, microcrystalline cellulose 3%, remainder are water.
4. cement grinding aid according to claim 1 or 2, which is characterized in that be grouped as by the group of following mass percent:
Polyethylene glycol 9%, sorbierite 7%, polyglyceryl fatty acid ester 2%, diethanol monoisopropanolamine 7%, triisopropanolamine 7%, sodium hydroxide
4%, Sodium Polyacrylate 4%, microcrystalline cellulose 2%, remainder are water.
5. cement grinding aid according to claim 1, which is characterized in that be grouped as by the group of following mass percent: poly-
Ethylene glycol 6%, sorbierite 9%, polyglyceryl fatty acid ester 3%, diethanol monoisopropanolamine 9%, triisopropanolamine 6%, sodium hydroxide
5%, Sodium Polyacrylate 3%, microcrystalline cellulose 4%, remainder are water.
6. a kind of preparation method of cement grinding aid as described in any one in claim 1-5, which is characterized in that including following step
It is rapid:
Step 1: sodium hydroxide is weighed according to the mass percent, and is dissolved in the water of the mass percent, is stirred evenly
Afterwards, room temperature, obtained solution one are down to；
Step 2: weighing Sodium Polyacrylate according to the mass percent, is dissolved in the solution one, and after having dissolved, stirring is equal
It is even, obtained solution two；
Step 3: it is weighed according to the mass percent other in addition to sodium hydroxide, Sodium Polyacrylate and microcrystalline cellulose
Raw material is sequentially added in the solution two, is stirred evenly, obtained solution three；
Step 4: weighing microcrystalline cellulose according to the mass percent, and the solution three is added, and stirs evenly, and water is made
Cement grinding aids.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN111470796B (en) * | 2020-03-31 | 2022-03-15 | 辽宁天宝华瑞建材有限公司 | Cement grinding aid |
| 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 |
| 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 |
| 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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| RU2247092C1 (en) * | 2003-12-03 | 2005-02-27 | Цельнер Михаил Ефимович | Concrete mixture and additive "lignopane b-2" for concrete mixture |
| CN102126843B (en) * | 2011-04-19 | 2012-08-01 | 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 |
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