CN103833248A - Cement composition - Google Patents
Cement composition Download PDFInfo
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- CN103833248A CN103833248A CN201410049878.4A CN201410049878A CN103833248A CN 103833248 A CN103833248 A CN 103833248A CN 201410049878 A CN201410049878 A CN 201410049878A CN 103833248 A CN103833248 A CN 103833248A
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- surface area
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- gypsum
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- 239000000203 mixture Substances 0.000 title claims abstract description 37
- 239000004568 cement Substances 0.000 title claims abstract description 28
- 239000002893 slag Substances 0.000 claims abstract description 73
- 239000010440 gypsum Substances 0.000 claims abstract description 47
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 47
- 239000010881 fly ash Substances 0.000 claims abstract description 38
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 23
- 230000023556 desulfurization Effects 0.000 claims abstract description 23
- 238000000227 grinding Methods 0.000 claims description 24
- 238000009835 boiling Methods 0.000 claims description 22
- -1 Wingdale Substances 0.000 claims description 13
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 12
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 12
- 239000002956 ash Substances 0.000 claims description 12
- 239000004571 lime Substances 0.000 claims description 12
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 10
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 10
- 229920001732 Lignosulfonate Polymers 0.000 claims description 10
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 10
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical group OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 10
- 239000011575 calcium Substances 0.000 claims description 10
- 229910052791 calcium Inorganic materials 0.000 claims description 10
- 239000001110 calcium chloride Substances 0.000 claims description 10
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 10
- 235000019357 lignosulphonate Nutrition 0.000 claims description 10
- YLGXILFCIXHCMC-JHGZEJCSSA-N methyl cellulose Chemical compound COC1C(OC)C(OC)C(COC)O[C@H]1O[C@H]1C(OC)C(OC)C(OC)OC1COC YLGXILFCIXHCMC-JHGZEJCSSA-N 0.000 claims description 10
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 10
- 235000011152 sodium sulphate Nutrition 0.000 claims description 10
- 229960004418 trolamine Drugs 0.000 claims description 10
- VSGNNIFQASZAOI-UHFFFAOYSA-L calcium acetate Chemical compound [Ca+2].CC([O-])=O.CC([O-])=O VSGNNIFQASZAOI-UHFFFAOYSA-L 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 claims description 6
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 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 4
- 229920005610 lignin Polymers 0.000 claims description 4
- 229920005552 sodium lignosulfonate Polymers 0.000 claims description 2
- 238000000354 decomposition reaction Methods 0.000 claims 2
- 238000001354 calcination Methods 0.000 claims 1
- 238000002360 preparation method Methods 0.000 abstract description 5
- 235000019738 Limestone Nutrition 0.000 abstract description 3
- 239000006028 limestone Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000011398 Portland cement Substances 0.000 abstract description 2
- 230000002925 chemical effect Effects 0.000 abstract 1
- 230000000704 physical effect Effects 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 239000011265 semifinished product Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 8
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 229920000578 graft copolymer Polymers 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000003469 silicate cement Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to a cement composition and its preparation method. The raw materials and semi-finished products for cement production are different in grindability, are introduced into the cement composition in terms of different dispersity, and also have significantly different physical and chemical effects. The cement composition and its preparation method provided by the invention can maximumly give play to limestone, slag, and sorted coarse fly ash, is in favor of lowering the production cost of the cement composition and improving the comprehensive performance of the cement composition. The cement composition comprises portland cement clinker, gypsum, power plant desulfurization gypsum, limestone, slag, sorted coarse fly ash, boiler bottom slag and fluidized bed furnace slag, etc..
Description
Technical field
The present patent application is on 07 01st, 2010 applying date, and application number is: 201010215079.1, and name is called the divisional application of the application for a patent for invention of " a kind of cement composition and preparation method thereof ".The present invention relates to a kind of cement composition.
Background technology
Traditionally, in order to simplify production technique,, do not make any distinction between and enter the dispersity that is milled down to regulation in same milling equipment the various starting material, work in-process of producing cement in cement mill after measuring fixed amount mixes.The quality control of this process, screen over-size sieves to control by water sieve or negative pressure in some enterprise, and some enterprise carrys out control ratio surface-area with ratio surface area instrument, and minority enterprise analyzes the granule-morphology of cement products with laser fineness gage.
In recent years, some enterprise has adopted will dry slag separate grinding, but will grog, gypsum, flyash and other blended material concentrate the technique of grinding, have realized that the grindability of slag is poor and in the time that it is milled down to higher dispersity, can use more slag to substitute grog and do not affect and the physical and chemical index such as the intensity of the cement that makes moderate progress.
Gypsum is Nonrenewable resources, and power plant desulfurization gypsum is a kind of industry byproduct, is under the effect of high-temperature steam, to absorb the sulfurous gas in flue gas with limestone powder, and displaces the secondary industrial residue forming after carbonic acid gas.
Collect from power plant's dust-removal system the powder mix coal ash getting off and be called as the former ash of flyash (also having the combination ash of being called as, system ash, flying dust [fly ash]), sub-elect with aerodynamic principle the sorting ash that a part has superior physics and chemical property and be called as sorting I level ash.Account for the 25-30% of former grey total amount, the national standard of sorting I level flyash is: more than [GB1596-91] 0.045 square hole sieve, be less than 12%, loss on ignition is less than 5%, and after sorting, remaining part is called as reject fly ash after sorting, belongs to industrial residue.
Existing cement grinding process exists and will carry out grinding and by the needs technical problem that more component of high degree of dispersion is disengaged in advance and its effect can not be utilized effectively without the component of crossing high degree of dispersion.
Summary of the invention
The object of the present invention is to provide a kind of cement composition.The chemically reactive that has solved active mixed material (as slag), potential volcanic ash blended material (as reject fly ash, boiling furnace slag etc. after sorting) discharges in advance, and reduces Portland clinker consumption and reduce the hydration heat of cement composition, the effect of strength of stability growth curve to reach.
A kind of cement composition, comprises reject fly ash after Portland clinker, gypsum, power plant desulfurization gypsum, Wingdale, slag, sorting, furnace bottom slag and boiling furnace slag.
Wherein, after sorting, reject fly ash obtains as follows: former flyash ash (as collected from power plant's dust-removal system) is carried out to sorting, obtain reject fly ash after sorting I level ash and sorting.
The weight proportion of each component is as follows:
Portland clinker 30-50 weight part
Gypsum 1-5 weight part
Power plant desulfurization gypsum 1-5 weight part
Wingdale 2-10 weight part
Slag 10-30 weight part
Reject fly ash 10-30 weight part after sorting
Furnace bottom slag 2-10 weight part
Boiling furnace slag 2-10 weight part.
The specific surface area of Portland clinker is 300-400m
2/ kg, the specific surface area of gypsum is 700-800m
2/ kg, the specific surface area of power plant desulfurization gypsum is 700-800m
2/ kg, the specific surface area of Wingdale is 800-1000m
2/ kg, the specific surface area of slag is 450-500m
2/ kg, after sorting, the specific surface area of reject fly ash is 600-700m
2/ kg, the specific surface area of furnace bottom slag is 600-700m
2/ kg, the specific surface area of boiling furnace slag is 600-700m
2/ kg.
A further object of the present invention is to provide the preparation method of above-mentioned cement composition.
A method of preparing above-mentioned cement composition, comprises the steps:
1) reject fly ash, furnace bottom slag and boiling furnace slag after Portland clinker, gypsum, power plant desulfurization gypsum, Wingdale, slag, sorting are carried out respectively to grinding, make the specific surface area of above-mentioned each component as follows: the specific surface area of Portland clinker is 300-400m
2/ kg, the specific surface area of gypsum is 300-400m
2/ kg, the specific surface area of power plant desulfurization gypsum is 300-400m
2/ kg, the specific surface area of Wingdale is 300-400m
2/ kg, the specific surface area of slag is 300-400m
2/ kg, after sorting, the specific surface area of reject fly ash is 300-400m
2/ kg, the specific surface area of furnace bottom slag is 300-400m
2/ kg, the specific surface area of boiling furnace slag is 300-400m
2/ kg;
2) respectively toward the A type admixture that adds 0.01-0.05wt% in the Portland clinker after grinding, gypsum, respectively toward the power plant desulfurization gypsum after grinding, the Type B admixture that Wingdale adds 0.01-0.05wt%, toward the C type admixture that adds 0.01-0.05wt% in slag, respectively toward the D type admixture that adds 5-15wt% in reject fly ash, furnace bottom slag and boiling furnace slag after the sorting after grinding
Wherein, A type admixture is trolamine, the mixture of sodium sulfate and calcium chloride, and trolamine, the weight proportion of sodium sulfate and calcium chloride is 1-1.5:(2-3): (2-3), Type B admixture is the mixture of methyl cellulose ether and sulfonated lignin, and the weight proportion of methyl cellulose ether and sulfonated lignin is 1-2:4-6, these sulfonated lignin can be calcium lignin sulphonate or sodium lignosulfonate etc., C type admixture is the poly carboxylic acid efficient liquid water reducer of net content 40%, this poly carboxylic acid graft copolymer water reducer can be common maleic anhydride graft copolymer, acrylate graft copolymers, containing end sulfonic group graft copolymer, unsaturated polyether graft copolymer etc., D type admixture is the mixture of quickened lime and organic acid calcium salt, the weight proportion of quickened lime and organic acid calcium salt is 95-99:1-5, this organic acid calcium salt can be calcium formiate or lime acetate etc.,
3) each component step 2 being obtained is evenly mixed.
Wherein, after sorting, reject fly ash obtains as follows: former flyash ash is carried out to sorting, obtain reject fly ash after sorting I level ash and sorting.
Further, the addition of above-mentioned A, B, tri-kinds of admixtures of C is preferably 0.03wt%.D type admixture addition is preferably 10%.
Further, in step 2, use vibration mill to carry out superfine pulverizing to the each component except grog and slag.
Further, in step 3, the mixing of each component is used the metered charge system of robot calculator DCS system control, makes to mix and stablizes, and is conducive to the stable of this mixture character.
The cement composition that the present invention obtains through above-mentioned processing, can produce the general purpose portland cement product that meets and be better than national standard [GB12958-1999] regulation.
Brief description of the drawings
Accompanying drawing 1 is the preparation flow figure of cement composition of the present invention.
Embodiment
Embodiment 1
Reject fly ash, furnace bottom slag and boiling furnace slag after Portland clinker, gypsum, power plant desulfurization gypsum, Wingdale, slag, sorting are carried out to grinding, make the specific surface area of above-mentioned each component as follows: the specific surface area of Portland clinker is 300m
2/ kg, the specific surface area of gypsum is 750m
2/ kg, the specific surface area of power plant desulfurization gypsum is 700m
2/ kg, the specific surface area of Wingdale is 900m
2/ kg, the specific surface area of slag is 470m
2/ kg, after sorting, the specific surface area of reject fly ash is 650m
2/ kg, the specific surface area of furnace bottom slag is 700m
2/ kg, the specific surface area of boiling furnace slag is 700m
2/ kg;
2) respectively toward the A type admixture that adds 0.03wt% in the Portland clinker after grinding, gypsum, respectively toward the power plant desulfurization gypsum after grinding, the Type B admixture that Wingdale adds 0.03wt%, toward the C type admixture that adds 0.03wt% in slag, respectively toward the D type admixture that adds 5wt% in reject fly ash, furnace bottom slag and boiling furnace slag after the sorting after grinding
Wherein, A type admixture is the mixture of trolamine, sodium sulfate and calcium chloride, and the weight proportion of trolamine, sodium sulfate and calcium chloride is 1:2:2, Type B admixture is the mixture of methyl cellulose ether and calcium lignin sulphonate, and the weight proportion of methyl cellulose ether and calcium lignin sulphonate is 1:4, C type admixture is the poly carboxylic acid efficient liquid water reducer of net content 40%, D type admixture is the mixture of quickened lime, calcium formiate and lime acetate, and the weight proportion of quickened lime, calcium formiate and lime acetate is 99:0.5:0.5;
3) each component step 2 being obtained is evenly mixed, and this mixing is used the metered charge system of robot calculator DCS system control.
The key technical indexes of gained cement products is as follows: within 3 days, ultimate compression strength is not less than 19.0, within 28 days, ultimate compression strength is not less than 36.0, final setting time is not more than 6:30h (h is 6 hours 30 minutes), meets and be better than the silicate cement product of national standard [GB12958-1999] regulation.
Embodiment 2
Reject fly ash, furnace bottom slag and boiling furnace slag after Portland clinker, gypsum, power plant desulfurization gypsum, Wingdale, slag, sorting are carried out to grinding, make the specific surface area of above-mentioned each component as follows: the specific surface area of Portland clinker is 400m
2/ kg, the specific surface area of gypsum is 700m
2/ kg, the specific surface area of power plant desulfurization gypsum is 750m
2/ kg, the specific surface area of Wingdale is 1000m
2/ kg, the specific surface area of slag is 450m
2/ kg, after sorting, the specific surface area of reject fly ash is 700m
2/ kg, the specific surface area of furnace bottom slag is 600m
2/ kg, the specific surface area of boiling furnace slag is 600m
2/ kg;
2) respectively toward the A type admixture that adds 0.01wt% in the Portland clinker after grinding, gypsum, respectively toward the power plant desulfurization gypsum after grinding, the Type B admixture that Wingdale adds 0.04wt%, toward the C type admixture that adds 0.02wt% in slag, respectively toward the D type admixture that adds 10wt% in reject fly ash, furnace bottom slag and boiling furnace slag after the sorting after grinding
Wherein, A type admixture is the mixture of trolamine, sodium sulfate and calcium chloride, and the weight proportion of trolamine, sodium sulfate and calcium chloride is 1.5:3:2.5, Type B admixture is the mixture of methyl cellulose ether and sulfonated lignin, and the weight proportion of methyl cellulose ether and sulfonated lignin is 2:6, C type admixture is the poly carboxylic acid efficient liquid water reducer of net content 40%, D type admixture is the mixture of quickened lime, calcium formiate and lime acetate, and the weight proportion of quickened lime, calcium formiate and lime acetate is 95:2:3;
3) each component step 2 being obtained is evenly mixed, and this mixing is used the metered charge system of robot calculator DCS system control.
The key technical indexes of gained cement products is as follows: within 3 days, ultimate compression strength is not less than 19.0, within 28 days, ultimate compression strength is not less than 36.0, final setting time is not more than 6:30h (h is 6 hours 30 minutes), meets and be better than the silicate cement product of national standard [GB12958-1999] regulation.
Embodiment 3
Reject fly ash, furnace bottom slag and boiling furnace slag after Portland clinker, gypsum, power plant desulfurization gypsum, Wingdale, slag, sorting are carried out to grinding, make the specific surface area of above-mentioned each component as follows: the specific surface area of Portland clinker is 350m
2/ kg, gypsum, specific surface area be 800m
2/ kg, the specific surface area of power plant desulfurization gypsum is 800m
2/ kg, the specific surface area of Wingdale is 800m
2/ kg, the specific surface area of slag is 500m
2/ kg, after sorting, the specific surface area of reject fly ash is 600m
2/ kg, the specific surface area of furnace bottom slag is 650m
2/ kg, the specific surface area of boiling furnace slag is 650m
2/ kg;
2) respectively toward the A type admixture that adds 0.05wt% in the Portland clinker after grinding, gypsum, respectively toward the power plant desulfurization gypsum after grinding, the Type B admixture that Wingdale adds 0.01wt%, toward the C type admixture that adds 0.05wt% in slag, respectively toward the D type admixture that adds 15wt% in reject fly ash, furnace bottom slag and boiling furnace slag after the sorting after grinding
Wherein, A type admixture is the mixture of trolamine, sodium sulfate and calcium chloride, and the weight proportion of trolamine, sodium sulfate and calcium chloride is 1:2:3, Type B admixture is the mixture of methyl cellulose ether and sulfonated lignin, and the weight proportion of methyl cellulose ether and sulfonated lignin is 1:5, C type admixture is the poly carboxylic acid efficient liquid water reducer of net content 40%, and D type admixture is the mixture of quickened lime and lime acetate, and the weight proportion of quickened lime and lime acetate is 98:2;
3) each component step 2 being obtained is evenly mixed, and this mixing is used the metered charge system of robot calculator DCS system control.
The key technical indexes of gained cement products is as follows: within 3 days, ultimate compression strength is not less than 19.0, within 28 days, ultimate compression strength is not less than 36.0, final setting time is not more than 6:30h (h is 6 hours 30 minutes), meets and be better than the silicate cement product of national standard [GB12958-1999] regulation.
Claims (2)
1. a cement composition, comprises reject fly ash after Portland clinker, gypsum, power plant desulfurization gypsum, Wingdale, slag, sorting, furnace bottom slag and boiling furnace slag, and the specific surface area of gypsum is 700-800m
2/ kg, the specific surface area of power plant desulfurization gypsum is 700-800m
2/ kg, the specific surface area of furnace bottom slag is 600-700m
2/ kg, the specific surface area of boiling furnace slag is 600-700m
2/ kg, after sorting, the specific surface area of reject fly ash is 600-700m
2/ kg, wherein, after sorting, reject fly ash obtains as follows: former flyash ash is carried out to sorting, obtain reject fly ash after sorting I level ash and sorting,
The content of each component is as follows:
Portland clinker 30-50 weight part
Gypsum 1-5 weight part
Power plant desulfurization gypsum 1-5 weight part
Wingdale 2-10 weight part
Slag 10-30 weight part
Reject fly ash 10-30 weight part after sorting
Furnace bottom slag 2-10 weight part
Boiling furnace slag 2-10 weight part,
The specific surface area of Portland clinker is 300-400m
2/ kg, the specific surface area of Wingdale is 800-1000m
2/ kg, the specific surface area of slag is 450-500m
2/ kg, prepare the method for described cement composition, comprise the steps: 1) reject fly ash, furnace bottom slag and boiling furnace slag after Portland clinker, gypsum, power plant desulfurization gypsum, Wingdale, slag, sorting are carried out respectively to grinding, make the specific surface area of above-mentioned each component as follows: the specific surface area of Portland clinker is 300-400m
2/ kg, the specific surface area of gypsum is 700-800m
2/ kg, the specific surface area of power plant desulfurization gypsum is 700-800m
2/ kg, the specific surface area of Wingdale is 800-1000m
2/ kg, the specific surface area of slag is 450-500m
2/ kg, after sorting, the specific surface area of reject fly ash is 600-700m
2/ kg, the specific surface area of furnace bottom slag is 600-700m
2/ kg, the specific surface area of boiling furnace slag is 600-700m
2/ kg, 2) respectively toward the Portland clinker after grinding, in gypsum, add the A type admixture of 0.01-0.05wt%, respectively toward the power plant desulfurization gypsum after grinding, Wingdale adds the Type B admixture of 0.01-0.05wt%, toward the C type admixture that adds 0.01-0.05wt% in slag, respectively toward reject fly ash after the sorting after grinding, in furnace bottom slag and boiling furnace slag, add the D type admixture of 5-15wt%, wherein, A type admixture is trolamine, the mixture of sodium sulfate and calcium chloride, and trolamine, the weight proportion of sodium sulfate and calcium chloride is 1-1.5:(2-3): (2-3), Type B admixture is the mixture of methyl cellulose ether and sulfonated lignin, and the weight proportion of methyl cellulose ether and sulfonated lignin is 1-2:4-6, C type admixture is the high-efficiency water-reducing agent of poly-carboxylic acid of net content 40%, D type admixture is the mixture of quickened lime and organic acid calcium salt, the weight proportion of quickened lime and organic acid calcium salt is 95-99:1-5, 3) each component step 2 being obtained is evenly mixed, described sulfonated lignin are that calcium lignin sulphonate and sodium lignosulfonate mix by weight 1:1, described quickened lime refers to that rate of decomposition is 90-98%, the active lime calcination of decomposition temperature 900-1050 DEG C.
2. the method for claim 1, is characterized in that, described organic acid calcium salt is calcium formiate or lime acetate.
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| CN201410049878.4A CN103833248B (en) | 2010-07-01 | 2010-07-01 | Cement composition |
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| CN201410049878.4A CN103833248B (en) | 2010-07-01 | 2010-07-01 | Cement composition |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417979A (en) * | 2014-09-22 | 2016-03-23 | 武汉鸿信通科技有限公司 | Preparation method for low-expansion cement |
| CN105503001A (en) * | 2014-09-22 | 2016-04-20 | 武汉鸿信通科技有限公司 | Low-expansion cement |
| CN108101396A (en) * | 2017-12-26 | 2018-06-01 | 天津山水水泥有限公司 | Portland cement and preparation method thereof |
| CN110615648A (en) * | 2018-06-20 | 2019-12-27 | 尧柏特种水泥技术研发有限公司 | Decorative cement |
| CN112694272A (en) * | 2020-12-25 | 2021-04-23 | 天津水泥工业设计研究院有限公司 | Low-carbon high-strength cementing material prepared from coal gangue power plant solid waste and preparation method thereof |
| CN116003001A (en) * | 2023-02-22 | 2023-04-25 | 上海百奥恒新材料有限公司 | Mine filling cement and preparation method and application thereof |
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| EP1218107B1 (en) * | 1999-09-13 | 2004-12-08 | W.R. GRACE & CO.-CONN. | Process for improving grinding of cement clinker in mills employing rollers |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105417979A (en) * | 2014-09-22 | 2016-03-23 | 武汉鸿信通科技有限公司 | Preparation method for low-expansion cement |
| CN105503001A (en) * | 2014-09-22 | 2016-04-20 | 武汉鸿信通科技有限公司 | Low-expansion cement |
| CN108101396A (en) * | 2017-12-26 | 2018-06-01 | 天津山水水泥有限公司 | Portland cement and preparation method thereof |
| CN110615648A (en) * | 2018-06-20 | 2019-12-27 | 尧柏特种水泥技术研发有限公司 | Decorative cement |
| CN112694272A (en) * | 2020-12-25 | 2021-04-23 | 天津水泥工业设计研究院有限公司 | Low-carbon high-strength cementing material prepared from coal gangue power plant solid waste and preparation method thereof |
| CN116003001A (en) * | 2023-02-22 | 2023-04-25 | 上海百奥恒新材料有限公司 | Mine filling cement and preparation method and application thereof |
| CN116003001B (en) * | 2023-02-22 | 2023-10-24 | 上海百奥恒新材料有限公司 | Mine filling cement and preparation method and application thereof |
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| CN103833248B (en) | 2014-11-19 |
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