CN103641367A - Compound cement grinding aid and preparation method thereof - Google Patents
Compound cement grinding aid and preparation method thereof Download PDFInfo
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- CN103641367A CN103641367A CN201310717096.9A CN201310717096A CN103641367A CN 103641367 A CN103641367 A CN 103641367A CN 201310717096 A CN201310717096 A CN 201310717096A CN 103641367 A CN103641367 A CN 103641367A
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- 239000004568 cement Substances 0.000 title claims abstract description 92
- 238000000227 grinding Methods 0.000 title claims abstract description 63
- 238000002360 preparation method Methods 0.000 title claims description 7
- 150000001875 compounds Chemical class 0.000 title abstract 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 39
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229920006149 polyester-amide block copolymer Polymers 0.000 claims abstract description 30
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 claims abstract description 25
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims abstract description 13
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000004202 carbamide Substances 0.000 claims abstract description 13
- 239000001632 sodium acetate Substances 0.000 claims abstract description 13
- 235000017281 sodium acetate Nutrition 0.000 claims abstract description 13
- 239000002131 composite material Substances 0.000 claims description 36
- 238000003756 stirring Methods 0.000 claims description 27
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 13
- 239000000178 monomer Substances 0.000 claims description 13
- 229960004418 trolamine Drugs 0.000 claims description 13
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 12
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 claims description 12
- 229910052791 calcium Inorganic materials 0.000 claims description 12
- 239000011575 calcium Substances 0.000 claims description 12
- 229960000541 cetyl alcohol Drugs 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 12
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 12
- 229920005610 lignin Polymers 0.000 claims description 12
- 229960004249 sodium acetate Drugs 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 7
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 5
- 230000032050 esterification Effects 0.000 claims description 3
- 238000005886 esterification reaction Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 239000010419 fine particle Substances 0.000 abstract description 3
- 239000000654 additive Substances 0.000 abstract description 2
- 229920005551 calcium lignosulfonate Polymers 0.000 abstract 1
- 235000013877 carbamide Nutrition 0.000 abstract 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 18
- 238000012360 testing method Methods 0.000 description 6
- 238000010298 pulverizing process Methods 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000003760 magnetic stirring Methods 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 229920000587 hyperbranched polymer Polymers 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- ZZVUWRFHKOJYTH-UHFFFAOYSA-N diphenhydramine Chemical compound C=1C=CC=CC=1C(OCCN(C)C)C1=CC=CC=C1 ZZVUWRFHKOJYTH-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
Landscapes
- Disintegrating Or Milling (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
The invention relates to the technical field of cement additives, and particularly relates to a compound cement grinding aid. The compound cement grinding aid comprises hyperbranched polyesteramide, hexadecanol, calcium lignosulphonate, urea, sodium acetate, glycol and glycerol. The compound cement grinding aid mixed in the cement accounts for 0.04%-0.05% the weight of the cement. The compound cement grinding aid, which takes the hyperbranched polyesteramide as the main component, can be used for obviously improving the content of fine particles in the cement, improving the grinding efficiency, lowering the production cost and hardly affecting the properties of the cement, is convenient to use, has a good effect, and has good development prospect in market.
Description
technical field
The present invention relates to cement additive technical field, particularly a kind of composite cement grinding aid, also relates to the preparation method of described composite cement grinding aid.
background technology
China's manufacture of cement is generally divided into three steps at present, prepares raw material, calcination of chamotte, pulverizing cement.Wherein in pulverizing cement process, electric energy more than 95% is all wasted because changing into heat energy; The agglomerating mill efficiency that reduced of easy adhesive aggregation when cement grinding attenuates simultaneously.In order to improve cement efficiency, reduce power consumption in cement pulverizing course, increase the addition content of blended material, thereby reduce cement cost, generally to add cement grinding aid.
Cement grinding aid can form coated film at cement particle surface, stops the reunion of cement, improves powder fluidity, improves the fineness of cement, increases the specific surface area of cement, improves cement granules and forms, and significantly improves fine particle content.Thereby reduction energy consumption.
Although the cement grinding aid on market can increase the addition content of blended material, reduce costs, can affect cement later strength; And the cement grinding aid cost of excellent property is higher, wherein majority is again that small organic molecule is mixed, the less stable of this class grinding aid, and result of use fluctuation is larger, and applicable surface is narrower.The consumption that usually needs to increase grinding aid for improving output, has improved manufacture of cement cost.
summary of the invention
In order to solve above existing cement grinding aid, affect that cement later strength, cost are high, less stable, result of use fluctuation be larger, the problem that applicable surface is narrower, the invention provides that a kind of volume is little, improve the output of cement on the basis that do not affect strength of cement, reduce energy consumption, realize the composite cement grinding aid of pulverizing cement green, energy-saving and environmental protection.
The present invention also provides the preparation method of described composite cement grinding aid.
The present invention is achieved by the following measures:
A composite cement grinding aid, the raw material that contains following weight proportion:
Super-branched polyesteramide, cetyl alcohol, calcium lignin sulphonate, urea, sodium-acetate, ethylene glycol, glycerol weight ratio are 35-50:1:10-12:20:20-30:15-25:15-25.
A composite cement grinding aid, the raw material that contains following weight proportion:
Super-branched polyesteramide, cetyl alcohol, calcium lignin sulphonate, urea, sodium-acetate, ethylene glycol, glycerol, water weight ratio are 35-50:1:10-12:20:20-30:15-25:15-25:5-10.
Described composite cement grinding aid, the raw material that contains following weight proportion:
Super-branched polyesteramide, cetyl alcohol, calcium lignin sulphonate, urea, sodium-acetate, ethylene glycol, glycerol weight ratio are 50:1:12:20:20:15:15.
Described composite cement grinding aid, super-branched polyesteramide obtains by following steps: Succinic anhydried and diethanolamine reaction with same mole in solvent DMAc generates AB
2type monomer, AB
2type monomer and core molecule trolamine esterification under Catalyzed by p-Toluenesulfonic Acid condition.
Described composite cement grinding aid, core molecule trolamine and AB
2the mol ratio of type monomer is 1:3-21.
Described composite cement grinding aid, core molecule trolamine and AB
2the mol ratio of type monomer is 1:3,1:9 or 1:21.
Described composite cement grinding aid, the 0.04%-0.05% that the volume of described composite cement grinding aid in cement is cement weight.
First the present invention has synthesized a kind of modification hydramine, it is a kind of super-branched polyesteramide, we can carry out the number of this polymer ends alcohol amine groups of manual control by controlling the algebraically of hyperbranched polymer, inquire into whereby alcohol amine groups in the mechanism of action in cement grinding aid field.The core molecule of this hyperbranched polymer is trolamine, the structure that end contains similar trolamine.Its end structure number is controlled, then itself and other small molecules auxiliary agent is mixed and is made into novel concrete grinding aid.
In the present invention, main component super-branched polyesteramide is compared some had special propertys with traditional linear macromolecule, and the molecular structure of the 3 D stereo shape that it is unique makes molecular chain without prehensile with without crystallinity.Its solubility property is good, and viscosity is low, when molecular weight increase or concentration raising, still can keep lower viscosity, thereby can reach good dispersion effect in cement.And its building-up process is relatively simple, do not need the separating-purifying of multistep, preparation is simple, and production cost is lower, is applicable to large-scale industrial production.
This super-branched polyesteramide that the present invention introduces is made AB with Succinic anhydried and diethanolamine 1:1 reaction
2type monomer, this monomer again with core molecule trolamine generation esterification.When both mol ratio is 1:3,1:9, obtains respectively the first-generation super-branched polyesteramide during 1:21, s-generation super-branched polyesteramide, third generation super-branched polyesteramide.Wherein in the first-generation, the s-generation, third generation super-branched polyesteramide, the ratio of terminal alcohol amine groups is 1:2:4.
Beneficial effect of the present invention:
Of the present inventionly take the composite cement grinding aid that super-branched polyesteramide is main component and obviously improved fine particle content in cement, improved grinding aid efficiency, reduced production cost, affect hardly the performance of cement, be the good cement grinding aid of a kind of effect easy to use, there is good future develop.
Embodiment
Below the preparation method of hyperbranched type cement grinding aid of the present invention is described in more detail, its object is to illustrate design of the present invention and feature, can not limit the scope of the invention with this.All equivalences that spirit is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
example 1
(1) take 30.021g Succinic anhydried, 31.543 g diethanolamine, first diethanolamine is dissolved in to appropriate DMAc, after dissolving, pour in the there-necked flask with magnetic stirring apparatus, then Succinic anhydried is dissolved with appropriate DMAc; Then it is slowly added drop-wise in the there-necked flask that diethanolamine is housed, stir on dropping limit, limit, and 1h-1.5h drips; Normal-temperature reaction 3 h-5h, the product of reaction is AB
2type monomer.In above-mentioned system, first add 60 mL toluene (toluene is band aqua), then add 14.920g trolamine as core molecule, add 0.4 g tosic acid to make catalyzer; Then start heating, until boiling, in spherical condensation tube, having refluxes produces.After insulation reaction 7 h-8h, the solvent in system is removed in underpressure distillation, obtains end and contains alcohol amine groups super-branched polyesteramide.
(2) by 8ml, 30 ℃ of water join in the large beaker of water-bath (30 ℃), add 10g calcium lignin sulphonate and 1g cetyl alcohol, stir 20-30min and make it to mix; Add again 20g urea and 30g sodium-acetate, stir 15-20min and add 24g ethylene glycol and 24g glycerol and be warmed up to 35 ℃ after mixing, stir 0.5h and make it to mix; The super-branched polyesteramide 36g that adds (1) to make, increases the temperature to 40 ℃ and stir the uniform mixture that 0.5h obtains and be cement grinding aid.
(3) composite cement grinding aid of the present invention of admixture 0.04%-0.05% in standard cement grog, tests synthetic composite cement grinding aid according to GB GB/T26748-2011.
example 2
(1) take 30.021g Succinic anhydried, 31.543 g diethanolamine, first diethanolamine is dissolved in to appropriate DMAc, after dissolving, pour in the there-necked flask with magnetic stirring apparatus, then Succinic anhydried is dissolved with appropriate DMAc; Then it is slowly added drop-wise in the there-necked flask that diethanolamine is housed, stir on dropping limit, limit, and 1h-1.5h drips; Normal-temperature reaction 3 h-5h, the product of reaction is AB
2type monomer.In above-mentioned system, first add 60 mL toluene (toluene is band aqua), then add 4.973g trolamine as core molecule, add 0.4 g tosic acid to make catalyzer; Then start heating, until boiling, in spherical condensation tube, having refluxes produces.After insulation reaction 7 h-8h, the solvent in system is removed in underpressure distillation, obtains end and contains alcohol amine groups super-branched polyesteramide.
(2) by 8ml, 30 ℃ of water join in the large beaker of water-bath (30 ℃), add 10g calcium lignin sulphonate and 1g cetyl alcohol, stir 20-30min and make it to mix; Add again 20g urea and 30g sodium-acetate, stir 15-20min and add 24g ethylene glycol and 24g glycerol and be warmed up to 35 ℃ after mixing, stir 0.5h and make it to mix; The super-branched polyesteramide 36g that adds (1) to make, increases the temperature to 40 ℃ and stir the uniform mixture that 0.5h obtains and be cement grinding aid.
(3) composite cement grinding aid of the present invention of admixture 0.04%-0.05% in standard cement grog, tests synthetic composite cement grinding aid according to GB GB/T26748-2011.
example 3
(1) take 30.021g Succinic anhydried, 31.543 g diethanolamine, first diethanolamine is dissolved in to appropriate DMAc, after dissolving, pour in the there-necked flask with magnetic stirring apparatus, then Succinic anhydried is dissolved with appropriate DMAc; Then it is slowly added drop-wise in the there-necked flask that diethanolamine is housed, stir on dropping limit, limit, and 1h-1.5h drips; Normal-temperature reaction 3 h-5h, the product of reaction is AB
2type monomer.In above-mentioned system, first add 60 mL toluene (toluene is band aqua), then add 2.131g trolamine as core molecule, add 0.4 g tosic acid to make catalyzer; Then start heating, until boiling, in spherical condensation tube, having refluxes produces.After insulation reaction 7 h-8h, the solvent in system is removed in underpressure distillation, obtains end and contains alcohol amine groups super-branched polyesteramide.
(2) by 8ml, 30 ℃ of water join in the large beaker of water-bath (30 ℃), add 10g calcium lignin sulphonate and 1g cetyl alcohol, stir 20-30min and make it to mix; Add again 20g urea and 30g sodium-acetate, stir 15-20min and add 24g ethylene glycol and 24g glycerol and be warmed up to 35 ℃ after mixing, stir 0.5h and make it to mix; The super-branched polyesteramide 36g that adds (1) to make, increases the temperature to 40 ℃ and stir the uniform mixture that 0.5h obtains and be cement grinding aid.
(3) composite cement grinding aid of the present invention of admixture 0.04%-0.05% in standard cement grog, tests synthetic composite cement grinding aid according to GB GB/T26748-2011.
example 4
(1) according to preparing super-branched polyesteramide in above-described embodiment 1.
(2) by 10ml, 30 ℃ of water join in the large beaker of water-bath (30 ℃), add 12g calcium lignin sulphonate and 1g cetyl alcohol, stir 20-30min and make it to mix; Add again 20g urea and 20g sodium-acetate, stir 15-20min and add 15g ethylene glycol and 15g glycerol and be warmed up to 35 ℃ after mixing, stir 0.5h and make it to mix; The super-branched polyesteramide 50g that adds (1) to make, increases the temperature to 40 ℃ and stir the uniform mixture that 0.5h obtains and be cement grinding aid.
(3) composite cement grinding aid of the present invention of admixture 0.04%-0.05% in standard cement grog, tests synthetic composite cement grinding aid according to GB GB/T26748-2011.
example 5
(1) according to preparing super-branched polyesteramide in above-described embodiment 1.
(2) by 10ml, 30 ℃ of water join in the large beaker of water-bath (30 ℃), add 12g calcium lignin sulphonate and 1g cetyl alcohol, stir 20-30min and make it to mix; Add again 20g urea and 30g sodium-acetate, stir 15-20min and add 25g ethylene glycol and 25g glycerol and be warmed up to 35 ℃ after mixing, stir 0.5h and make it to mix; The super-branched polyesteramide 35g that adds (1) to make, increases the temperature to 40 ℃ and stir the uniform mixture that 0.5h obtains and be cement grinding aid.
(3) composite cement grinding aid of the present invention of admixture 0.04%-0.05% in standard cement grog, tests synthetic composite cement grinding aid according to GB GB/T26748-2011.
performance test
Admixture composite cement grinding aid of the present invention in standard cement grog.According to GB GB/T26748-2011, test synthetic composite cement grinding aid.The grinding aid obtaining with trolamine replacement super-branched polyesteramide is grinding aid in contrast.
The cement grinding aid that above-mentioned example is obtained has carried out performance test, and data are as follows:
Claims (8)
1. a composite cement grinding aid, is characterized in that the raw material that contains following weight proportion:
Super-branched polyesteramide, cetyl alcohol, calcium lignin sulphonate, urea, sodium-acetate, ethylene glycol, glycerol weight ratio are 35-50:1:10-12:20:20-30:15-25:15-25.
2. a composite cement grinding aid, is characterized in that the raw material that contains following weight proportion:
Super-branched polyesteramide, cetyl alcohol, calcium lignin sulphonate, urea, sodium-acetate, ethylene glycol, glycerol, water weight ratio are 35-50:1:10-12:20:20-30:15-25:15-25:5-10.
3. composite cement grinding aid according to claim 1 and 2, is characterized in that the raw material that contains following weight proportion:
Super-branched polyesteramide, cetyl alcohol, calcium lignin sulphonate, urea, sodium-acetate, ethylene glycol, glycerol weight ratio are 50:1:12:20:20:15:15.
4. composite cement grinding aid according to claim 1 and 2, is characterized in that super-branched polyesteramide obtains by following steps: Succinic anhydried and diethanolamine reaction with same mole in solvent DMAc generates AB
2type monomer, AB
2type monomer and core molecule trolamine esterification under Catalyzed by p-Toluenesulfonic Acid condition.
5. composite cement grinding aid according to claim 4, is characterized in that core molecule trolamine and AB
2the mol ratio of type monomer is 1:3-21.
6. composite cement grinding aid according to claim 4, is characterized in that core molecule trolamine and AB
2the mol ratio of type monomer is 1:3,1:9 or 1:21.
7. composite cement grinding aid according to claim 1 and 2, is characterized in that the 0.04%-0.05% that the volume of described composite cement grinding aid in cement is cement weight.
8. a preparation method for the composite cement grinding aid described in any one in claim 1-7, is characterized in that the water of 30 ℃, calcium lignin sulphonate and cetyl alcohol to mix, and stirs 20-30min and makes it to mix; Add again urea and sodium-acetate, stir 15-20min to mixing, add ethylene glycol and glycerol and be warmed up to 35 ℃, stir 0.5h and make it to mix; Add super-branched polyesteramide, increase the temperature to 40 ℃ and stir 0.5h and obtain uniform mixture, be composite cement grinding aid.
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| CN201310717096.9A CN103641367B (en) | 2013-12-23 | 2013-12-23 | A kind of composite cement grinding aid and preparation method thereof |
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| CN201310717096.9A CN103641367B (en) | 2013-12-23 | 2013-12-23 | A kind of composite cement grinding aid and preparation method thereof |
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| CN103641367B CN103641367B (en) | 2015-08-19 |
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Cited By (8)
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|---|---|---|---|---|
| CN103864319A (en) * | 2014-03-31 | 2014-06-18 | 江苏融达新材料股份有限公司 | Steel slag grinding aid and preparation 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 |
| CN106082761A (en) * | 2016-06-24 | 2016-11-09 | 桂林华越环保科技有限公司 | A kind of retardation setting type cement grinding aid |
| CN106746840A (en) * | 2015-11-20 | 2017-05-31 | 甘肃曼特睿尔公路材料研发有限责任公司 | A kind of cement grinding aid |
| CN108516842A (en) * | 2018-04-19 | 2018-09-11 | 田秋珍 | A kind of ceramic grind additives |
| CN111072308A (en) * | 2020-01-03 | 2020-04-28 | 桂林理工大学 | Concrete anticorrosive agent and preparation method thereof |
| CN111943537A (en) * | 2020-08-07 | 2020-11-17 | 绍兴柯桥第三水泥有限公司 | Masonry cement and preparation method thereof |
| CN115745460A (en) * | 2022-12-21 | 2023-03-07 | 洛阳奥百思特水泥技术有限公司 | Energy-saving additive for cement raw material and preparation method and application thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864319A (en) * | 2014-03-31 | 2014-06-18 | 江苏融达新材料股份有限公司 | Steel slag grinding aid and preparation method thereof |
| CN103864319B (en) * | 2014-03-31 | 2015-09-23 | 江苏融达新材料股份有限公司 | A kind of steel slag grinding aid and preparation 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 |
| CN106746840A (en) * | 2015-11-20 | 2017-05-31 | 甘肃曼特睿尔公路材料研发有限责任公司 | A kind of cement grinding aid |
| CN106082761A (en) * | 2016-06-24 | 2016-11-09 | 桂林华越环保科技有限公司 | A kind of retardation setting type cement grinding aid |
| CN108516842A (en) * | 2018-04-19 | 2018-09-11 | 田秋珍 | A kind of ceramic grind additives |
| CN111072308A (en) * | 2020-01-03 | 2020-04-28 | 桂林理工大学 | Concrete anticorrosive agent and preparation method thereof |
| CN111072308B (en) * | 2020-01-03 | 2021-07-23 | 桂林理工大学 | Concrete anticorrosive agent and preparation method thereof |
| CN111943537A (en) * | 2020-08-07 | 2020-11-17 | 绍兴柯桥第三水泥有限公司 | Masonry cement and preparation method thereof |
| CN111943537B (en) * | 2020-08-07 | 2022-03-15 | 绍兴柯桥第三水泥有限公司 | Masonry cement and preparation method thereof |
| CN115745460A (en) * | 2022-12-21 | 2023-03-07 | 洛阳奥百思特水泥技术有限公司 | Energy-saving additive for cement raw material and preparation method and application thereof |
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| CN103641367B (en) | 2015-08-19 |
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