CN102992694B - Preparation method of composite portland cement additive - Google Patents
Preparation method of composite portland cement additive Download PDFInfo
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- CN102992694B CN102992694B CN201210547155.8A CN201210547155A CN102992694B CN 102992694 B CN102992694 B CN 102992694B CN 201210547155 A CN201210547155 A CN 201210547155A CN 102992694 B CN102992694 B CN 102992694B
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- Prior art keywords
- cement
- cement additive
- preparation
- additive
- additire
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- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000000654 additive Substances 0.000 title abstract description 13
- 230000000996 additive effect Effects 0.000 title abstract description 13
- 239000011398 Portland cement Substances 0.000 title abstract description 4
- 239000002131 composite material Substances 0.000 title abstract description 4
- 239000004568 cement Substances 0.000 claims abstract description 51
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 6
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims abstract description 5
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 5
- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 claims abstract description 5
- 235000017281 sodium acetate Nutrition 0.000 claims abstract description 5
- 239000001632 sodium acetate Substances 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 5
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 5
- -1 polyoxyethylene Polymers 0.000 claims description 5
- 229960004249 sodium acetate Drugs 0.000 claims description 4
- 229960004418 trolamine Drugs 0.000 claims description 4
- 239000004567 concrete Substances 0.000 claims description 2
- 238000000227 grinding Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 239000003245 coal Substances 0.000 abstract description 2
- 239000002202 Polyethylene glycol Substances 0.000 abstract 2
- 229920001223 polyethylene glycol Polymers 0.000 abstract 2
- 239000008213 purified water Substances 0.000 abstract 1
- 238000005303 weighing Methods 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 4
- 238000010298 pulverizing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 241000370738 Chlorion Species 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The invention discloses a preparation method of a composite portland cement additive. The preparation method comprises the steps: (1) weighing all components in the cement additive in percentage by weight as follows: 3-6% of sodium acetate, 51-70% of purified water, 8-12% of triisopropanolamine, 12-18% of triethanolamine, 5-8% of ethylene glycol and 2-5% of polyethylene glycol, wherein the molecular weight of the polyethylene glycol is 200-700; (2) mixing and stirring all the components in (1) uniformly to obtain a cement additive; and (3) adding the cement additive obtained in (2) in a cement grinding process or in a cement usage process in a manner of being blended with water, wherein the weight percentage of the amount of the doped cement additive is 0.03%-0.08%. The cement additive prepared according to the invention has the advantages of not only reducing power and coal consumption but also improving the quality and performance of cement, and is lower than the average level of like products in China in terms of cost and price, and is simple, convenient and feasible to prepare.
Description
Technical field
The present invention relates to technology of producing cement field, particularly a kind of preparation method of composite Portland cement additive.
Background technology
At present manufacture of cement is in grinding process, in mill the fine powder of material due to electrostatic adsorption and surface can be large former thereby very easily occur reuniting or be attached to grinding element, liner plate surface forms bed course (buffer layer) and causes mill efficiency not high.And produce thus a series of contingency questions: carbonic acid gas, sulfurous gas isothermal chamber gas emissions cause greatly environmental pollution, and the unreasonable strength of cement that causes of cement granules grating is not high; The new rule of industry improve constantly the requirement of cement, especially chloride ion content that can corroding metal in cement have been had to clearly regulation, and this cement additive that contains chlorion before just making uses and is subject to considerable restraint; Urgently cement industry digestion solution of industrial waste and mining slag at present, and these waste materials are similar to cement composition and have certain potential hydration activity, but activity needs additional substance to excite; Condition has been created in this use that is cement additire.
Summary of the invention
The object of this invention is to provide a kind of mill grinding efficiency that can generally be suitable for, improve cement, increase the volume of industrial waste in cement, increase the preparation method of the cement liquid additive of strength of cement.
Concrete steps are:
(1) in cement additire, the massfraction of each component is: sodium-acetate 3-6%, pure water 51-70%, tri-isopropanolamine 8-12%, trolamine 12-18%, ethylene glycol 5-8% and polyoxyethylene glycol (molecular weight is 200-700) 2-5%.
(2) each step (1) component mixing and stirring is obtained to cement additire.
(3) cement additire of step (2) gained is added or in the time that cement uses, added together with mixing water in cement pulverizing course, the massfraction of cement additire addition content is 0.3 ‰-0.8 ‰.
The prepared cement additire of the present invention can significantly improve mill efficiency 10%-25%, significantly improves grinding environment---and reduce and even eliminate the phenomenon that cement micro-powder paste mill is stuck with paste ball.In the situation that cement proportion is constant, effectively improve strength of cement, early anti pressured intension improves 1.5-4MPa, and later stage ultimate compression strength improves 5-10MPa; Ensureing, under identical requirement of strength, can to increase blended material consumption 15-20%.
Cement additire prepared by the present invention can be saved power consumption and coal consumption and can improve again quality and the performance of cement, and in cost, price lower than the mean level (ML) of domestic like product; Simple and easy to do in preparation.
Embodiment
Embodiment 1:
(1) in cement additire, the massfraction of each component is: sodium-acetate 5%, pure water 60%, tri-isopropanolamine 10%, trolamine 18%, ethylene glycol 5% and polyoxyethylene glycol (molecular weight is 400) 2%;
(2) each step (1) component mixing and stirring is obtained to cement additire.
(3) cement additire of step (2) gained is added in cement pulverizing course, the massfraction of additive addition content is respectively 0.3 ‰ and 0.5 ‰.
Cement additire volume in pulverized fuel ash cement is respectively 0.3 ‰ and improved respectively 1.5MPa and 3.5MPa in pulverized fuel ash cement early strength at 0.5 ‰ o'clock; Later strength improves respectively 7MPa and 10MPa.
Embodiment 2:
(1) in cement additire, the massfraction of each component is: sodium-acetate 6%, pure water 63%, tri-isopropanolamine 10%, trolamine 12%, ethylene glycol 6% and polyoxyethylene glycol (molecular weight is 400) 3%.
(2) each step (1) component mixing and stirring is obtained to cement additire.
(3) cement additire of step (2) gained is added in cement pulverizing course, the massfraction of additive addition content is respectively 0.3 ‰ and 0.6 ‰.
Cement additire volume in pulverized fuel ash cement is respectively 0.3 ‰ and improved respectively 1.8MPa and 4MPa in pulverized fuel ash cement early strength at 0.5 ‰ o'clock; Later strength improves respectively 5MPa and 10MPa.
Claims (1)
1. a preparation method for cement additire, is characterized in that concrete steps are:
(1) in cement additire, the massfraction of each component is: sodium-acetate 3-6%, pure water 51-70%, tri-isopropanolamine 8-12%, trolamine 12-18%, ethylene glycol 5-8% and polyoxyethylene glycol 2-5%; The molecular weight of described polyoxyethylene glycol is 200-700;
(2) each step (1) component mixing and stirring is obtained to cement additire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210547155.8A CN102992694B (en) | 2012-12-17 | 2012-12-17 | Preparation method of composite portland cement additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210547155.8A CN102992694B (en) | 2012-12-17 | 2012-12-17 | Preparation method of composite portland cement additive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102992694A CN102992694A (en) | 2013-03-27 |
| CN102992694B true CN102992694B (en) | 2014-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210547155.8A Active CN102992694B (en) | 2012-12-17 | 2012-12-17 | Preparation method of composite portland cement additive |
Country Status (1)
| Country | Link |
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| CN (1) | CN102992694B (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2815627B1 (en) * | 2000-10-25 | 2003-09-05 | Coatex Sas | PROCESS FOR IMPROVING MECHANICAL RESISTANCE IN PARTICULAR "TO THE YOUNG AGES" OF CEMENT MATRICES, CEMENT MATRICES THUS OBTAINED AND THEIR USES |
| CN102060467A (en) * | 2010-12-01 | 2011-05-18 | 镇江市百瑞吉混凝土外加剂有限公司 | Composite cement grinding aid and preparation method thereof |
| CN102249586A (en) * | 2011-05-13 | 2011-11-23 | 洛阳万顺建材有限公司 | Grinding-assistant reinforcing agent for mineral powder |
-
2012
- 2012-12-17 CN CN201210547155.8A patent/CN102992694B/en active Active
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| Publication number | Publication date |
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| CN102992694A (en) | 2013-03-27 |
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Application publication date: 20130327 Assignee: GUANGXI KE SUI ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Assignor: GUILIN University OF TECHNOLOGY Contract record no.: X2023980045094 Denomination of invention: Preparation method of a composite silicate cement additive Granted publication date: 20141126 License type: Common License Record date: 20231101 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
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Application publication date: 20130327 Assignee: Guilin Rongjia Environmental Protection Technology Co.,Ltd. Assignor: GUILIN University OF TECHNOLOGY Contract record no.: X2023980045322 Denomination of invention: Preparation method of a composite silicate cement additive Granted publication date: 20141126 License type: Common License Record date: 20231103 |