CN104193199B - A kind of high magnesium slag volume cement - Google Patents
A kind of high magnesium slag volume cement Download PDFInfo
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- CN104193199B CN104193199B CN201410459657.4A CN201410459657A CN104193199B CN 104193199 B CN104193199 B CN 104193199B CN 201410459657 A CN201410459657 A CN 201410459657A CN 104193199 B CN104193199 B CN 104193199B
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- magnesium slag
- cement
- limestone
- raw material
- gangue
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- 239000002893 slag Substances 0.000 title claims abstract description 74
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 63
- 239000011777 magnesium Substances 0.000 title claims abstract description 63
- 239000004568 cement Substances 0.000 title claims abstract description 56
- 239000002994 raw material Substances 0.000 claims abstract description 28
- 239000000203 mixture Substances 0.000 claims abstract description 26
- 235000019738 Limestone Nutrition 0.000 claims abstract description 23
- 239000006028 limestone Substances 0.000 claims abstract description 23
- 235000021321 essential mineral Nutrition 0.000 claims abstract description 16
- 239000002002 slurry Substances 0.000 claims abstract description 16
- 238000000227 grinding Methods 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000010881 fly ash Substances 0.000 claims abstract description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052681 coesite Inorganic materials 0.000 claims abstract description 5
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 5
- 229910052906 cristobalite Inorganic materials 0.000 claims abstract description 5
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 5
- 229910052682 stishovite Inorganic materials 0.000 claims abstract description 5
- 229910052905 tridymite Inorganic materials 0.000 claims abstract description 5
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 4
- 235000012054 meals Nutrition 0.000 claims abstract description 4
- 230000000996 additive effect Effects 0.000 claims description 10
- 239000004575 stone Substances 0.000 claims description 10
- 239000000654 additive Substances 0.000 claims description 9
- 239000013256 coordination polymer Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000006071 cream Substances 0.000 claims 1
- 238000006477 desulfuration reaction Methods 0.000 claims 1
- 230000023556 desulfurization Effects 0.000 claims 1
- 239000011505 plaster Substances 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 3
- 230000008021 deposition Effects 0.000 abstract description 2
- 239000002440 industrial waste Substances 0.000 abstract description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 31
- 239000000292 calcium oxide Substances 0.000 description 17
- 238000001354 calcination Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- -1 gangue Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000011404 masonry cement Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000003469 silicate cement Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of high magnesium slag volume cement, in this cement slurry, essential mineral composition and weight percentage are respectively, limestone 65 82%, magnesium slag 1 20%, sandstone 5.5 9.4%, gangue 4 8%, wherein, the main chemical compositions of selected magnesium slag is 55% >=CaO >=50%, 20%≤SiO2≤30%、8%≤MgO≤12%、4%≤Fe2O3≤ 6%, 0 ＜ Al2O3≤ 2%, by the raw material that prepare successively after drying raw meal mill, raw material homogenizing silo, dore furnace, rotary kiln, the grog obtained and flyash, desulfurated plaster, slag allotment, enter cement grinding mill and obtain cement.The present invention can adulterate up to 20% magnesium slag, not only extend the service life of limestone mine, the industrial waste such as magnesium slag also making bulk deposition is utilized effectively, and further improves grog burn-ability, reduces the f CaO content in grog, meets national standard.
Description
Technical field
The present invention relates to a kind of construction material, particularly relate to a kind of high magnesium slag volume cement.
Background technology
Cement is as engineering foundation material indispensable in architectural engineering, with China's industrialization and urban-rural integration process
Quickening, within the quite a long time, can be the biggest to the demand of cement.Before and after anticipated 2015, China's cement
Demand is up to 19-23 hundred million tons, and the consumption to main material limestone is up to 11.6-14.1 hundred million tons, additionally, limestone is in smelting
Gold solvent, building stone, medication chemistry production etc. also have bigger consumption, go down for a long time, the reserves structure to China's limestone
Become to threaten.Then China encourages enterprise to use industrial waste slag (such as: metallurgical slag, gangue, flyash etc.) to substitute from the perspective of policy
Part of cement raw materials for production, magnesium slag is huge because of industrial output amount, and containing CaO, SiO in magnesium slag2、Al2O3And Fe2O3, and this
A little compositions are all necessary to manufacture of cement, therefore, utilize magnesium slag Substitute For Partial Calx masonry cement producting material, are become evil
For profit, there is good economic benefit and environmental benefit, be the mode generally taked of present cement production enterprise.
But there is the following problem in the cement of magnesium slag Substitute For Partial limestone production at present.
(1) magnesium slag this as powdery, and through shrend, enter factory's moisture about 15%, after entering mill, because of the comprehensive moisture of material
Too high, raw mill unit-hour output can be caused in a slight decrease.
(2) in magnesium slag blanking, transport process, easily adhere on Belt Conveying equipment, cause blanking not smooth and putty is existing
As.
(3) ratio of magnesium slag replacement limestone is the highest, mostly is the volume less than 12%, to magnesium slag waste material bulk deposition and stone
The situation innovation dynamics that lime stone reserves are in an emergency is inconspicuous.
(4), during magnesium slag burden calcination of chamotte, the harmful effect such as circle, balling after rotary kiln knot easily occurs.
Summary of the invention
The invention discloses a kind of high magnesium slag volume cement, it is desirable to provide a kind of low cost, high magnesium slag volume, production are stablized
High-quality silicate cement.
Magnesium slag is the solid slag discharged during industrial employing Pidgeon process production magnesium metal.Produce the primary raw material of magnesium metal
For dolomite, ferrosilicon and the fluorite as reducing catalyst, main chemical reactions is:
CaCO3·MgCO3 CaO+MgO+2CO2
2MgO+2CaO+Si(Fe)2Mg+2CaO·SiO2+Fe
The magnesium slag discharged cools down in atmosphere, and in canescence block material, small part is powdery.The main chemical compositions of magnesium slag
It is CaO, SiO2、MgO、Fe2O3With a small amount of Al2O3, main mineral constituent is γ-C2S、α-C2S、MgO、FeO、CaF2Deng, permissible
The free calcium oxide reducing grog (is called for short: f-CaO) content, improves the burn-ability of raw material.
Additive has one can improve and regulate concrete or mortar function, is properly added additive also in raw material
The f-CaO content of grog can be reduced, improve the burn-ability of raw material.
The technical scheme is that a kind of high magnesium slag volume cement, essential mineral composition and weight hundred in cement slurry
Content is divided to be respectively, limestone 65%-82%, magnesium slag 1%-20%, sandstone 5.5%-9.4%, gangue 4%-8%, wherein, selected
Magnesium slag main chemical compositions is 55% >=CaO >=50%, 20%≤SiO2≤30%、8%≤MgO≤12%、4%≤Fe2O3≤ 6%, 0 ＜
Al2O3≤ 2%, by the raw material that prepare, through drying raw meal mill, raw material homogenizing silo, dore furnace, (outlet temperature of dore furnace is 850 successively
In the range of DEG C-930 DEG C, decompose outlet pressure of furnace and control at 950Pa-1300Pa), (calcining heat is 1350 DEG C-1500 to rotary kiln
DEG C) after, the grog obtained and one or more allotments in flyash, desulfurated plaster, slag, limestone, enter cement grinding mill and obtain
To the cement of different model, such as: 75% grog and 5% flyash, 5% desulfurated plaster, 15% slag allotment can be entered cement grinding mill,
Fine grinding obtains the PO42.5 cement that fineness is 9.8%；Can be by 60% grog and 5% desulfurated plaster, 20% slag, 10% flyash, 5% stone
Lime stone is allocated, and enters cement grinding mill, and fine grinding obtains the PC42.5 cement that fineness is 9.9%；Can by 40% grog and 6% desulfurated plaster,
31% slag, 15% flyash, 8% limestone allotment, enter cement grinding mill, and fine grinding obtains the PC32.5 cement that fineness is 9.9%；
By 85% grog, 5% Gypsum Fibrosum, 10% slag enters cement grinding mill, and fine grinding obtains the PO52.5 cement that fineness is 9.8%.
As a kind of preferred implementation, in cement slurry, essential mineral composition and weight percentage are respectively, Calx
Stone 65%-70%, magnesium slag 18%-20%, sandstone 5.5%-6.5%, gangue 5%-6%.
As a kind of preferred implementation, in cement slurry, essential mineral composition and weight percentage are respectively, Calx
Stone 71%-73%, magnesium slag 15%-16%, sandstone 7.0%-8.0%, gangue 4%-5%.
As a kind of preferred implementation, in cement slurry, essential mineral composition and weight percentage are respectively, Calx
Stone 74%-76%, magnesium slag 11%-13%, sandstone 8.0%-9.0%, gangue 4.8%-5.5%.
As a kind of preferred implementation, additive CB or CP of additional 0.3%-1.2%, for improving the inflammable of raw material
Property, wherein CB or CP is prepared by analytically pure chemical reagent.
As a kind of preferred implementation, in cement slurry, essential mineral composition and weight percentage are respectively, Calx
Stone 68.7%, magnesium slag 20%, sandstone 6%, gangue 5.3%.
As a kind of preferred implementation, in cement slurry, essential mineral composition and weight percentage are respectively, Calx
Stone 68.7%, magnesium slag 20%, sandstone 6%, gangue 5.3%；Separately add the additive accounting for above-mentioned raw material gross weight 0.5%.
As a kind of preferred implementation, in cement slurry, essential mineral composition and weight percentage are respectively, Calx
Stone 68.7%, magnesium slag 20%, sandstone 6%, gangue 5.3%；Separately add the additive accounting for above-mentioned raw material gross weight 1%.
In order to study the burn-ability under the conditions of different magnesium slag and admixture dosage, to different magnesium slags and the height of admixture dosage
Magnesium slag volume cement is calcined at different temperatures, and the present invention is by mixing the raw material of the magnesium quantity of slag 0%, 10%, 15%, 20% in different temperatures
Lower calcining, and the cement raw material of the additional additive CB accounting for raw material gross weight 0.5% and 1% is calcined at different temperatures,
And the f-CaO content in the grog burnt is carried out statistical analysis, shown in result accompanying drawing 1.
Can be obtained by accompanying drawing 1, accompanying drawing 2, accompanying drawing 3: no matter whether Mixed With Admixture in raw material, along with the addition of magnesium slag, respectively forge
F-CaO during the content of f-CaO is below not spiked with magnesium slag sample in gained material at a temperature of burning；Accompanying drawing 1 and accompanying drawing 2 show: right
In not mixing the sample of additive, when the magnesium slag volume in raw material is increased to 20% by 0, the f-CaO in 1350 DEG C of calcining samples by
6.48% is reduced to 1.26%, and during 1400 DEG C of calcinings, when magnesium slag addition content is increased most 15% by 0, the reduction curve of f-CaO is relatively
Gently, effect is distant；Magnesium slag volume continues to increase, and in sintered specimen, f-Ca0 the most linearly reduces；Accompanying drawing 1 and accompanying drawing 3
Show: for the sample of Mixed With Admixture, when admixture dosage is increased to 1% by 0.5%, the f-CaO of 1350 DEG C of calcining samples
Being reduced to 1.12% by 1.21%, amplitude is 7.4%；And the f-CaO calcining sample at 1250 DEG C is reduced to 5.24% by 7.75%, width
Degree is 32.4%.To sum up can obtain: under additive effect, when filling the magnesium slag of 20% in raw material, material has the most easily burning
Property, particularly in the range of 1250 DEG C ~ 1350 DEG C, when 1350 ~ 1400 DEG C, grog burns till the most substantially, the f-CaO content of grog
Oneself is decreased to the lowest, it is not necessary to reduce the f-CaO of sample, and now MgO in clinker by increasing magnesium slag volume further
Content has reached higher level, the limitation just specified less than National Standards Technical index.
Accompanying drawing explanation
Accompanying drawing 1 is the f-Ca0 result in the present invention in the different constitutive material gained grog of different temperatures calcining.
Accompanying drawing 2 is that in the present invention, datagram calcined at different temperatures by the raw material of different magnesium slag volumes.
Accompanying drawing 3 be in the present invention in the raw material containing 20% magnesium slag the calcining datagram of Mixed With Admixture CB.
Detailed description of the invention
The present invention is respectively as follows: limestone 68.7%, magnesium slag with essential mineral composition and weight percentage in cement slurry
20%, sandstone 6%, gangue 5.3%(are wherein: contain CaO, the SiO of 21.4% of 52.3% in magnesium slag2, the MgO of 10.3%, 5.0%
Fe2O3, the Al of 1.0%2O3) it is that the present invention program is described further by embodiment.
Limestone, sandstone, gangue are first crushed to homogenizing, dispensing after 80mm, and magnesium slag is the most homogenizing, dispensing, will
The raw material prepared enter drying raw meal mill and dry, and go out the moisture of raw material when grinding and, less than 0.5%, enter back into raw material homogenizing silo
Homogenizing, subsequently enter TDF dore furnace and carry out pre-thermal decomposition, the outlet temperature of dore furnace at about 860 DEG C, going out of dore furnace
Mouth pressure, at 980 Pa, enters back into rotary kiln, obtains grog at 1450 DEG C of temperature lower calcinations；By 60% grog and 5% desulfurated plaster,
20% slag, 10% flyash, 5% limestone allotment, enter cement grinding mill, and fine grinding obtains the PC42.5 cement that fineness is 9.9%, gained
The fineness of cement is 2.1%, specific surface area 355 m2/ kg, rupture strength: be 7.2 MPa when 3 days, is 9.8 MPa when 28 days；Anti-
Compressive Strength: be 34 MPa when 3 days, is 59 MPa when 28 days.
Claims (8)
1. one kind high magnesium slag volume cement, it is characterised in that: in cement slurry, essential mineral composition and weight percentage are respectively
For, limestone 65%-82%, magnesium slag 1%-20%, sandstone 5.5%-9.4%, gangue 4%-8%, wherein, mainization of selected magnesium slag
Study point is 55% >=CaO >=50%, 20%≤SiO2≤30%、8%≤MgO≤12%、4%≤Fe2O3≤ 6%, 0 ＜ Al2O3≤ 2%, will
The raw material prepared successively after drying raw meal mill, raw material homogenizing silo, dore furnace, rotary kiln, the grog obtained and flyash, desulfurization stone
One or more allotments in cream, slag, limestone, enter cement grinding mill and obtain the cement of different model.
High magnesium slag volume cement the most as claimed in claim 1, it is characterised in that: essential mineral composition and weight in cement slurry
Percentage composition is respectively, limestone 65%-70%, magnesium slag 18%-20%, sandstone 5.5%-6.5%, gangue 5%-6%.
High magnesium slag volume cement the most as claimed in claim 1, it is characterised in that: essential mineral composition and weight in cement slurry
Percentage composition is respectively, limestone 71%-73%, magnesium slag 15%-16%, sandstone 7.0%-8.0%, gangue 4%-5%.
High magnesium slag volume cement the most as claimed in claim 1, it is characterised in that: essential mineral composition and weight in cement slurry
Percentage composition is respectively, limestone 74%-76%, magnesium slag 11%-13%, sandstone 8.0%-9.0%, gangue 4.8%-5.5%.
5. the high magnesium slag volume cement as described in arbitrary in claim 1-4, it is characterised in that: additional 0.3%-1.2%'s is additional
Agent CB or CP, for improving the inflammability of raw material.
High magnesium slag volume cement the most as claimed in claim 2, it is characterised in that: essential mineral composition and weight in cement slurry
Percentage composition is respectively, limestone 68.7%, magnesium slag 20%, sandstone 6%, gangue 5.3%.
High magnesium slag volume cement the most as claimed in claim 5, it is characterised in that: essential mineral composition and weight in cement slurry
Percentage composition is respectively, limestone 68.7%, magnesium slag 20%, sandstone 6%, gangue 5.3%；Separately add and account for above-mentioned raw material gross weight 0.5%
Additive.
High magnesium slag volume cement the most as claimed in claim 5, it is characterised in that: essential mineral composition and weight in cement slurry
Percentage composition is respectively, limestone 68.7%, magnesium slag 20%, sandstone 6%, gangue 5.3%；Separately add and account for above-mentioned raw material gross weight 1%
Additive.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410459657.4A CN104193199B (en) | 2014-09-11 | 2014-09-11 | A kind of high magnesium slag volume cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410459657.4A CN104193199B (en) | 2014-09-11 | 2014-09-11 | A kind of high magnesium slag volume cement |
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| Publication Number | Publication Date |
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| CN104193199A CN104193199A (en) | 2014-12-10 |
| CN104193199B true CN104193199B (en) | 2016-08-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107473613B (en) * | 2017-09-19 | 2018-08-31 | 华润水泥（富川）有限公司 | A kind of cement and preparation method thereof using industrial solid-state castoff production |
| CN109354424A (en) * | 2018-12-22 | 2019-02-19 | 山西中条山新型建材有限公司 | A kind of cement slurry |
| CN111499230A (en) * | 2020-04-28 | 2020-08-07 | 安徽盘景水泥有限公司 | Coal gangue solid waste material as raw material admixture |
Citations (2)
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|---|---|---|---|---|
| CN1285329A (en) * | 2000-10-09 | 2001-02-28 | 内蒙古蒙西高新材料股份有限公司 | High performance compound silicate cement |
| CN103420630A (en) * | 2013-07-11 | 2013-12-04 | 山西东义集团特种水泥有限公司 | Silicate clinker and cement prepared with same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4408511B2 (en) * | 1999-12-28 | 2010-02-03 | 宇部興産株式会社 | Environmental impact-reducing cement clinker composition |
| KR101168681B1 (en) * | 2010-12-28 | 2012-07-25 | 재단법인 포항산업과학연구원 | Portland cement clinker and manufacturing method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1285329A (en) * | 2000-10-09 | 2001-02-28 | 内蒙古蒙西高新材料股份有限公司 | High performance compound silicate cement |
| CN103420630A (en) * | 2013-07-11 | 2013-12-04 | 山西东义集团特种水泥有限公司 | Silicate clinker and cement prepared with same |
Non-Patent Citations (1)
| Title |
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| 镁渣在2500t/d新型干法水泥生产线上的使用;王保宝;《四川水泥》;20091231(第6期);第42-44页 * |
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