CN101121579A - Method for producing concrete active admixture by iron tailings - Google Patents
Method for producing concrete active admixture by iron tailings Download PDFInfo
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- CN101121579A CN101121579A CNA2007101187119A CN200710118711A CN101121579A CN 101121579 A CN101121579 A CN 101121579A CN A2007101187119 A CNA2007101187119 A CN A2007101187119A CN 200710118711 A CN200710118711 A CN 200710118711A CN 101121579 A CN101121579 A CN 101121579A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000004567 concrete Substances 0.000 title claims abstract description 35
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 20
- 239000000843 powder Substances 0.000 claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 14
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 11
- 239000010440 gypsum Substances 0.000 claims abstract description 11
- 229910052925 anhydrite Inorganic materials 0.000 claims abstract description 3
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 3
- 239000002893 slag Substances 0.000 claims description 23
- 230000004075 alteration Effects 0.000 claims description 18
- 230000035484 reaction time Effects 0.000 claims description 12
- 238000001354 calcination Methods 0.000 claims description 11
- 238000000227 grinding Methods 0.000 claims description 11
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 11
- 239000011044 quartzite Substances 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 4
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 4
- 150000004683 dihydrates Chemical class 0.000 claims description 4
- 239000004571 lime Substances 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 4
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims description 3
- 239000008188 pellet Substances 0.000 claims description 3
- 239000011505 plaster Substances 0.000 claims description 3
- 238000005054 agglomeration Methods 0.000 claims description 2
- 230000002776 aggregation Effects 0.000 claims description 2
- 238000005469 granulation Methods 0.000 claims description 2
- 230000003179 granulation Effects 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- 239000004568 cement Substances 0.000 abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 4
- 238000005266 casting Methods 0.000 abstract description 2
- 241000876852 Scorias Species 0.000 abstract 4
- 239000002699 waste material Substances 0.000 abstract 3
- 239000010453 quartz Substances 0.000 abstract 2
- 239000005997 Calcium carbide Substances 0.000 abstract 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- 239000010436 fluorite Substances 0.000 abstract 1
- 238000001802 infusion Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000011574 phosphorus Substances 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract 1
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 8
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 6
- 229910052791 calcium Inorganic materials 0.000 description 5
- 239000011575 calcium Substances 0.000 description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000000395 magnesium oxide Substances 0.000 description 3
- 239000011404 masonry cement Substances 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000003469 silicate cement Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910020218 Pb—Zn Inorganic materials 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- UXNBTDLSBQFMEH-UHFFFAOYSA-N [Cu].[Zn].[Pb] Chemical compound [Cu].[Zn].[Pb] UXNBTDLSBQFMEH-UHFFFAOYSA-N 0.000 description 1
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
- C04B40/0046—Premixtures of ingredients characterised by their processing, e.g. sequence of mixing the ingredients when preparing the premixtures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The present invention relates to a method to produce concrete active mixing material using the waste iron to replace part of scoria. The method is to add 70 percent to 93 percent of the magnet quartz waste iron, 1 percent to 20 percent of calcareousness or calcium carbide residual or the mixture of the two materials, 1-10 percent of gypsum or semi-water gypsum or anhydrite or decarbolizing gypsum or phosphorus gypsum or fluorspar gypsum or the mixture of the two or more than the two and 0.1 - 5 percent of corroding together to be milled into 80um griddle residual less or equal to 3 percent; and the grain is to be made the reaction of heat liquid corroding reaction. The corroding production after being cooled is mixed with 10 -60 percent of scoria with the molar percent between 40 percent and 90 percent and then to be milled into 80um griddle residual less or equal to 0.5 percent; in this way, the active concrete mixture replaced with the scoria powder is obtained. The present invention can make the magnet quartz waste iron treated with resource mode, relax the lacking of the super thin scoria powder led by the much larger infusion for the casting of the concrete and decrease the manufacturing cost for the concrete; the method can enhance the use amount of the mixture, decrease the use amount of the cement and decrease the resource consumption and environment pollution led by the cement production.
Description
Technical field:
The invention belongs to building material field, particularly a kind of method of utilizing iron tailings to produce concrete active admixture.
Background technology:
Magnetite quartzite sections ore deposit is the topmost iron ore type of China.Mainly by magnetite and quartzy two kinds of mineral compositions, the content of two kinds of mineral can reach more than 90% this iron ore.Along with the continuous growth to the iron ore demand of the raising of technique of preparing and steel industry, the selected grade of this class ore constantly descends, and generally will select 1 ton of iron ore concentrate needs 3～6 tons iron ore.Be that 1 ton of pig iron of every refining needs 5～10 tons iron ore.Therefore the production of iron and steel can produce a large amount of mine tailings.At present, the whole of China has accumulated stores up iron tailings over ten billion ton, takies a large amount of soils, mountains and rivers, destroys environment, the safety of harm ecology and the people's lives and property.
At present, build the concrete structures commerical ready-mixed concretes that provide by the large-sized concrete stirring station that adopt more.The adulterant of general use 30～50% replaces cement and uses various admixtures to reduce the concrete cost and to improve performance in this class concrete.Present employed concrete admixture is many based on ground slag powder and flyash.In some big and medium-sized cities, because construction scope is huge, the slag pulverized powder shortage occurs as concrete adulterant, so the price of slag pulverized powder constantly raises.
Patent of invention CN1067421A " utilize copper mining tailing produce cement clinker ", CN1657466A " process for calcining cement clinker that silicon dioxide activity is adjusted in copper, the Pb-Zn tailings ", the disclosed technology of CN1789194A " dry-process rotory kiln is used the grog process for calcining of copper-lead zinc mine tailing " all be with the non-ferro metals debris instead of part or all the traditional silicon aluminum raw material as the method for the batching of producing cement clinker.Though that is to say the foregoing invention patent characteristics of natural resource such as saving clay, quartz sand are arranged all, all do not have and to have tangible technical progress aspect few calcination of cement clinker and the fuel economy.Patent of invention CN1616372A " industrial tailings silicate cement " discloses the technology of a kind of mine tailing as cement mixture, and used mine tailing is the magnesia mine tailing of treated calcium.In above-mentioned technology, the weight proportion of mine tailing in ordinary Portland cement is: 6～15%; Weight proportion in composite Portland cement is 15～50%; Weight proportion in Portland blast is: 20～50%; Weight proportion in silicate cement (II type) is: 20～50%.Though this technology has few calcination of cement clinker and fuel-saving characteristics, need utilize the magnesia mine tailing of calcium, do not relate to and use the magnetite quartzite sections mine tailing of the magnesia mineral of calcic hardly.Patent of invention CN1429784A " a kind of Portland clinker " discloses a kind of technology of mixing 5～18% iron tailings as the batching of calcining cement clinker, and the characteristics of this technology also are to have tangible technical progress aspect minimizing calcination of cement clinker and the fuel economy.Patent of invention CN1065851A " adopting iron tailings and high-calcium fly ass slag to produce the method for masonry cement " discloses a kind of iron tailings, low calcium fly ash, sodium sulfate, hardening accelerator, high calcium lime-ash of adopting and has mixed the method for producing masonry cement.The weight percent of above-mentioned each material is respectively 10～40%, 10～25%, 0～5%, 5% and 30～70%.This patent has the calcination of cement clinker of minimizing and fuel-saving characteristics, but the related masonry cement of this technology can not be used for preparing high strength grade concrete.
Summary of the invention
The present invention seeks to utilize magnetite quartzite sections mine tailing instead of part slag pulverized powder, with the dual purpose that realizes consuming mine tailing and reduce the concrete cost.
With magnetite quartzite sections mine tailing 70～93%, lime or carbide slag or both mixtures 1～20%, dihydrate gypsum or semi-hydrated gypsum or anhydrite or desulfurated plaster or phosphogypsum or fluorgypsum or two or more the mixture 1～10% in them, alteration agent 0.1～5% carry out together mix grinding to 80 μ m tail over≤3% fineness after, carry out the hydrothermal alteration reaction again.Described alteration agent batching is formed weight percent and is: Na
2SO
40.1～50%, K
2SO
40.1～15%, MgSO
40.1～20%, NaNO
30.1～10%, KNO
30.1～5%, Mg (NO
3)
20.1～8%, Na
2CO
30.1～3%, K
2CO
30.1～5%, NaCl 0.1～0.2%, KCl 0.1～0.2%, MgCl
20.1～0.2%, NaF 0.1～0.8%, KF 0.1～1.2%, MgF
20.1～3%.Need to guarantee in the reaction process that material each several part minimum temperature be not less than 500 ℃, the highlyest be no more than 900 ℃, the reaction times is more than 1 second.Reach above-mentioned needed temperature of reaction and reaction times, carry out different temperature control according to different its temperature of reaction of kiln type.If material is made adobe when using tunnel furnace or other brick-baking kiln to react, burning zone temperature is controlled at 600～900 ℃ in the kiln, is 3～8 hours in the reaction times of clinkering zone.If it is the pellet of 0.5～5cm when adopting calcined by rotary kiln that the material that above-mentioned mix grinding is good is made diameter, then burning zone temperature is controlled at 700～800 ℃ in the kiln, is 10～60 minutes in the reaction times of clinkering zone.If adopt cyclone type suspension calcining reactor or flash calcination reactor, then the powder material that grinding is good does not need to make ball, granulation or agglomeration processing, directly enters reactor and reacts.Temperature of reaction is 600～800 ℃, and the reaction times was 1～20 second.
With the material that obtains after the cooling of the product of above-mentioned alteration by weight percentage 40～90% mix with 10～60% slag again be milled down to 80 μ m and tail over≤0.5%.Just obtain to replace the active concrete admixture of slag ultrafine powder use.This all properties index of this active admixture meets every performance index of GB/T18046-2000 " GBFS that is used for cement and concrete " defined, and can be according to the concrete of present slag ultrafine powder as the cement preparation C10 to C80 of the universal method replacement 5%～50% of concrete admixture.
Advantage or positively effect
(1) can make at present China store up in a large number and the magnetite quartzite sections mine tailing of a large amount of outputs get utilization; (2) alleviate the ultrafine slag powder situation in short supply that some big and medium-sized cities of China cause greatly owing to the concrete casting fluence, reduce the concrete cost; (3) promote concrete further to improve the consumption of adulterant, reduce cement consumption, reduce because energy consumption and the environmental pollution that manufacture of cement is brought.
Embodiment:
Embodiment 1
With magnetite quartzite sections mine tailing 90%, lime 3%, dihydrate gypsum 4%, it is after 80 μ m tail over 2.5% to fineness that dried mix grinding is carried out in alteration agent 3% together, again that mix grinding is good material carries out hydrothermal alteration in 700 ℃ and reacts in the cyclone type suspension reactor, the reaction times was 10 seconds.Product that above-mentioned reaction is good cooling back gained material by weight percentage 80% is mixed together with 20% slag powders that to be milled down to fineness be that 80 μ m tail over 0.3% again, obtains the concrete admixture that can replace the slag ultrafine powder to use.This active admixture all properties index meets every performance index of relevant S95 defined among the GB/T18046-2000 " GBFS that is used for cement and concrete ".
Embodiment 2
With magnetite quartzite sections mine tailing 80%, lime 15%, dihydrate gypsum 3%, it is after 80 μ m tail over 2.5% to fineness that dried mix grinding is carried out in alteration agent 2% together, again that mix grinding is good material carries out hydrothermal alteration in 700 ℃ and reacts in the cyclone type suspension reactor, the reaction times was 7 seconds.Product that above-mentioned reaction is good cooling back gained material by weight percentage 40% is mixed together with 60% slag powders that to be milled down to fineness be that 80 μ m tail over 0.3% again, obtains the concrete admixture that can replace the slag ultrafine powder to use.This active admixture all properties index meets every performance index of relevant S105 defined among the GB/T18046-2000 " GBFS that is used for cement and concrete ".
Embodiment 3
With magnetite quartzite sections mine tailing 85%, carbide slag 11.8%, desulfurated plaster 3%, wet mixing is carried out in alteration agent 0.2% together, and to be ground to that 80 μ m tail over be after 1% the fineness, carry out filter-press dehydration, again material is made adobe, use tunnel furnace to react, burning zone temperature is controlled at 700 ℃ ± 30 ℃ in the kiln, is 7 hours in the reaction times of clinkering zone.
The material that obtains after the cooling of the product of above-mentioned alteration 90% is mixed with 10% slag that to be milled down to that 80 μ m tail over be 0.3% by weight percentage again.Just obtain to replace the active concrete admixture of slag ultrafine powder use.This active admixture all properties index meets every performance index of relevant S95 defined among the GB/T18046-2000 " GBFS that is used for cement and concrete ".
Embodiment 4
With magnetite quartzite sections mine tailing 84.7%, carbide slag 8%, phosphogypsum 6%, wet mixing is carried out in alteration agent 0.3% together, and to be ground to that 80 μ m tail over be after 0.5% the fineness, carry out filter-press dehydration, and material is made the pellet that diameter is 0.5 ~ 5cm, adopt rotary kiln to carry out the hydrothermal alteration reaction.Burning zone temperature is controlled at 750 ℃ ± 30 ℃ in the kiln, is 40 minutes in the reaction times of clinkering zone.The material that obtains after the cooling of the product of above-mentioned alteration 90% is mixed with 10% slag that to be milled down to that 80 μ m tail over be 0.3% by weight percentage again, just obtain the active concrete admixture that can replace the slag ultrafine powder to use.This active admixture all properties index meets every performance index of relevant S95 defined among the GB/T18046-2000 " GBFS that is used for cement and concrete ".
Claims (3)
1. method of utilizing iron tailings to produce concrete active admixture, it is characterized in that magnetite quartzite sections mine tailing 70～93%, lime or carbide slag or both mixtures 1～20%, dihydrate gypsum or semi-hydrated gypsum or anhydrite or desulfurated plaster or phosphogypsum or fluorgypsum or two or more the mixture 1～10% in them, alteration agent 0.1～5% carry out together mix grinding to 80 μ m tail over≤3% fineness after, carry out the hydrothermal alteration reaction again; The material that obtains after the product cooling with alteration reaction by weight percentage 40～90% mix with 10～60% slag again be milled down to 80 μ m and tail over≤0.5%; Just obtain to replace the active concrete admixture of slag ultrafine powder use.
2. the method for utilizing iron tailings to produce concrete active admixture as claimed in claim 1 is characterized in that alteration agent batching composition weight percent is: Na
2SO
40.1～50%, K
2SO
40.1～15%, MgSO
40.1～20%, NaNO
30.1～10%, KNO
30.1～5%, Mg (NO
3)
20.1～8%, Na
2CO
30.1～3%, K
2CO
30.1～5%, NaCl 0.1～0.2%, KCl 0.1～0.2%, MgCl
20.1～0.2%, NaF 0.1～0.8%, KF 0.1～1.2%, MgF
20.1～3%.
3. the method for utilizing iron tailings to produce concrete active admixture as claimed in claim 1, it is characterized in that the hydrothermal alteration reaction, when the good material of mix grinding being made adobe when using tunnel furnace or other brick-baking kiln to react, burning zone temperature is controlled at 600～900 ℃ in the kiln, is 3～8 hours in the reaction times of clinkering zone; Making diameter when the material that mix grinding is good is the pellet of 0.5～5cm when adopting calcined by rotary kiln, and then burning zone temperature is controlled at 700～800 ℃ in the kiln, is 10～60 minutes in the reaction times of clinkering zone; When adopting cyclone type suspension calcining reactor or flash calcination reactor, then the powder material that mix grinding is good does not need to make ball, granulation or agglomeration processing, directly enters reactor and reacts, and temperature of reaction is 600～800 ℃, and the reaction times was 1～20 second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101187119A CN100567194C (en) | 2007-07-12 | 2007-07-12 | A kind of method of utilizing iron tailings to produce concrete active admixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101187119A CN100567194C (en) | 2007-07-12 | 2007-07-12 | A kind of method of utilizing iron tailings to produce concrete active admixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101121579A true CN101121579A (en) | 2008-02-13 |
| CN100567194C CN100567194C (en) | 2009-12-09 |
Family
ID=39084104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101187119A Active CN100567194C (en) | 2007-07-12 | 2007-07-12 | A kind of method of utilizing iron tailings to produce concrete active admixture |
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| CN101348335B (en) * | 2008-09-02 | 2012-07-11 | 北京科技大学 | Method for preparing special concrete for high-performance concrete from magnet aposand stone iron tailings |
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| CN103011638A (en) * | 2012-10-24 | 2013-04-03 | 马朝阳 | Method for producing cement by use of lead and zinc tailings |
| CN103359982A (en) * | 2012-03-26 | 2013-10-23 | 中国矿业大学(北京) | Sprayed concrete material prepared by using iron tailings |
| CN104163582A (en) * | 2013-05-17 | 2014-11-26 | 厦门新安德矿产科技有限公司 | Cement with magnetization reduction roasting iron tailing as mixing material, and preparation method thereof |
| CN107129166A (en) * | 2017-04-01 | 2017-09-05 | 三明学院 | A kind of green composite cement and preparation method thereof |
| CN107298537A (en) * | 2017-06-12 | 2017-10-27 | 哈尔滨工业大学 | A kind of multiplicity reactivation iron tailings sand supplementary cementitious material and preparation method thereof |
| CN108275895A (en) * | 2018-03-09 | 2018-07-13 | 湖南科技大学 | A kind of method that the slugging of suspension roasting coal gas prepares cementitious material |
| CN108585573A (en) * | 2018-05-15 | 2018-09-28 | 北京建筑材料科学研究总院有限公司 | Composite reactive for concrete blends preparation method for material |
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