CN101671132A - Fish reef cementing material containing nano-tailings and preparation method thereof - Google Patents
Fish reef cementing material containing nano-tailings and preparation method thereof Download PDFInfo
- Publication number
- CN101671132A CN101671132A CN200910093130A CN200910093130A CN101671132A CN 101671132 A CN101671132 A CN 101671132A CN 200910093130 A CN200910093130 A CN 200910093130A CN 200910093130 A CN200910093130 A CN 200910093130A CN 101671132 A CN101671132 A CN 101671132A
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- mine tailing
- tailings
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- 239000000463 material Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title abstract 2
- 238000000227 grinding Methods 0.000 claims abstract description 42
- 239000000203 mixture Substances 0.000 claims abstract description 39
- 239000002893 slag Substances 0.000 claims abstract description 33
- 239000011044 quartzite Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 241000251468 Actinopterygii Species 0.000 claims abstract description 25
- 239000004568 cement Substances 0.000 claims abstract description 20
- 239000000843 powder Substances 0.000 claims abstract description 16
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 18
- 229910052602 gypsum Inorganic materials 0.000 claims description 15
- 239000010440 gypsum Substances 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 239000011398 Portland cement Substances 0.000 abstract description 2
- 238000005065 mining Methods 0.000 abstract description 2
- 239000011505 plaster Substances 0.000 abstract 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract 1
- 235000011116 calcium hydroxide Nutrition 0.000 abstract 1
- 239000000920 calcium hydroxide Substances 0.000 abstract 1
- 239000011812 mixed powder Substances 0.000 abstract 1
- 239000004576 sand Substances 0.000 description 12
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000003638 chemical reducing agent Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 239000004575 stone Substances 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000002105 nanoparticle Substances 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011404 masonry cement Substances 0.000 description 1
- 238000010025 steaming Methods 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
- Artificial Fish Reefs (AREA)
Abstract
The invention belongs to the fields of mining industry and marine environment, and particularly relates to a fish reef cementing material containing nano-tailings and a preparation method thereof. Magnetite-quartzite tailings are graded by a screen with 60 to 100 meshes, and screened parts are dried and then finely ground until the specific surface area ranges from 3000 to 4000 cm<2>/g. After being mixed according to the proportion of 50 to 60 percent of tailings and 40 to 50 percent of blast furnace water quenched slag, the finely ground tailings and the dried blast furnace water quenched slag are further processed by mix grinding until the specific surface area ranges from 4000 to 5000 cm<2>/g. The mixed fine powder of the tailings and the water quenched slag is mixed with cement clinkerand plaster, the mixed powder accounts for 75 to 85 percent, the cement clinker accounts for 10 to 15 percent, and the plaster accounts for 5 to 10 percent. Third mix grinding is carried out on the mixed material in a ball grinder until the specific surface area ranges from 5000 to 6000 cm<2>/g, thereby obtaining the fish reef cementing material containing the nano-magnetite-quartzite tailings. The invention solves the problem of difficult utilization of extremely fine-grained magnetite-quartzite tailings in the prior art. Compared with the common Portland cement, the content of the cement clinker in the cementing material is reduced by more than 5 times, the content of Ca(OH)2 in hydrate products is reduced, and the alkalinity of artificial fish reef concrete can be greatly lowered.
Description
Technical field
The invention belongs to mining industry field and ocean environment field, particularly a kind of fish reef cementing material and manufacture method thereof that contains nano-tailings.
Background technology
China's magnetite quartzite type mine tailing year quantum of output surpasses 2.5 hundred million tons, and accumulation is stored up more than 2,000,000,000 tons.The progress of in these years constantly soaring and technique of preparing along with the iron ore concentrate price, the grinding fineness in the ore dressing process is more and more higher, and the mine tailing of being discharged is also more and more thinner.The mine tailing of superfine granularity brings difficulty to the production of traditional construction materials such as mine tailing building block, brings difficulty also for the all-tailing cemented filling mine.Storing up in a large number of superfine particle mine tailing brings bigger pressure also for environment and safety in addition.
Liu protects congruence and has invented " a kind of iron tailings sand buring free, steaming free bearing building blocks or brick and manufacturing process (CN1727301) thereof "; Guan Changjun etc. have invented " making the method (CN1944325) of building product with the iron tailings powder "; Above-mentioned two patents all do not have to consider to make full use of the problem of superfine particle mine tailing fineness feature, do not consider to reduce basicity to adapt to the needs of artificial marine habitat yet.The patent of invention of Wang Xianjin etc. " adopts iron tailings and high-calcium fly ass slag to produce the method (CN1065851A) of masonry cement ", though considered to utilize the fineness feature of mine tailing, but do not mention the effect of performance nano particle wherein, do not consider to reduce its basicity yet to adapt to the production of artificial marine habitat.
Summary of the invention
The present invention seeks to make full use of the fineness of superfine particle magnetite quartzite type mine tailing, and the composition characteristic that contains a large amount of quartz and other silicate mineralss, adopt the method for step mix grinding that it is further levigate until tangible nano particle occurring, and possess certain gelling reaction activity, mix slag, cement clinker and gypsum etc. simultaneously and make the low alkalinity gel material that contains nanometer magnetite quartzite type mine tailing.This low alkalinity gel material that contains nanometer magnetite quartzite type mine tailing can be used to prepare low basicity artificial marine habitat concrete.
A kind of fish reef cementing material and manufacture method thereof that contains nano-tailings, concrete steps are as follows:
1, magnetite quartzite type mine tailing is carried out classification with 60～100 eye mesh screens, will sieve the thicker part branch and sift out, sell, the lower part of screen branch is dried to water ratio 0.01%～1% as building sand.Thin mine tailing after the oven dry is levigate to specific surface area 3000～4000cm in grinding machine
2/ g.
2, with the blast furnace slag after levigated mine tailing in the step 1 and the oven dry more further mix grinding to specific surface area 4000～5000cm
2/ g, wherein the water ratio of blast furnace slag also requires 0.01%～1%.In secondary mix grinding process, mine tailing and scoriaceous ratio of components with butt weight percentage score are not: mine tailing accounts for 50%～60%, and blast furnace slag accounts for 40%～50%.
3, the mixing fine powders of above-mentioned mine tailing and blast furnace slag is prepared burden with cement clinker and gypsum again, batching by butt weight percentage score is not: powder mix accounts for 75%～85%, and cement clinker accounts for 10%～15%, and gypsum accounts for 5%～10%.The material for preparing is carried out mix grinding for the third time in ball mill, to specific surface area 5000～6000cm
2/ g has just obtained containing the fish reef cementing material of nanometer magnetite quartzite type mine tailing.
Usefulness of the present invention
(1) compare in the gelling material of the present invention cement clinker content with ordinary Portland cement and reduce more than 5 times, significant to energy-saving and emission-reduction.
(2) make full use of the fineness of superfine particle magnetite quartzite type mine tailing, and the composition characteristic that contains a large amount of quartz and other silicate mineralss, adopt the method for step mix grinding that it is further levigate until tangible nano particle occurring, and possess certain gelling reaction activity, solved the difficult problem that superfine particle magnetite quartzite type mine tailing is difficult to utilize in the prior art.
(3) owing to reduced the consumption of cement clinker significantly, reduced Ca in the hydrated product (OH)
2Content, the concrete basicity of artificial marine habitat is reduced significantly, help improving the marine ecology consistency of artificial marine habitat.
Embodiment
Embodiment 1
(1) magnetite quartzite type mine tailing is carried out classification with 60 eye mesh screens, will sieve the thicker part branch and sift out, sell, the lower part of screen branch is dried to water ratio 0.4% as building sand.Thin mine tailing after the oven dry is levigate to specific surface area 3000cm in grinding machine
2/ g.
(2) with the blast furnace slag after levigated mine tailing in the step 1 and the oven dry more further mix grinding to specific surface area 5000cm
2/ g, the water ratio of wherein going into the blast furnace slag of mill is 0.6%.In secondary mix grinding process, mine tailing and scoriaceous ratio of components with butt weight percentage score are not: mine tailing accounts for 60%, and blast furnace slag accounts for 40%.
(3) mixing fine powders of above-mentioned mine tailing and blast furnace slag is prepared burden with cement clinker and gypsum again, batching by butt weight percentage score is not: powder mix accounts for 80%, and cement clinker accounts for 10%, and gypsum accounts for 10%.The material for preparing is carried out mix grinding for the third time in ball mill, to specific surface area 6000cm
2/ g has just obtained containing the fish reef cementing material of nanometer magnetite quartzite type mine tailing.
(4) above-mentioned mix grinding is the good fish reef cementing material that contains nanometer magnetite quartzite type mine tailing adds gelling material 350kg by every cubic metre of artificial marine habitat concrete, UNF-5 high efficiency water reducing agent 3.5kg, sand 950kg, stone 1150kg, water 180kg, can obtain having good working performance after stirring, have the artificial marine habitat concrete of higher-strength and low basicity, its main performance index is as shown in table 1.
The artificial marine habitat concrete main performance index that table 1 is prepared with embodiment 1 gained fish reef cementing material
| Slump (mm) | 3 days ultimate compression strength (Mpa) | 28 days ultimate compression strength (Mpa) | Anti-penetration grade | Freeze-thaw resistance (inferior) |
| ??185 | ?21.7 | ??45.6 | ??≥P30 | ??208 |
Embodiment 2
(1) magnetite quartzite type mine tailing is carried out classification with 80 eye mesh screens, will sieve the thicker part branch and sift out, sell, the lower part of screen branch is dried to water ratio 0.8% as building sand.Thin mine tailing after the oven dry is levigate to specific surface area 3500cm in grinding machine
2/ g.
(2) with the blast furnace slag after levigated mine tailing in the step 1 and the oven dry more further mix grinding to specific surface area 4500cm
2/ g, the water ratio of wherein going into the blast furnace slag of mill is 0.4%.In secondary mix grinding process, mine tailing and scoriaceous ratio of components with butt weight percentage score are not: mine tailing accounts for 55%, and blast furnace slag accounts for 45%.
(3) mixing fine powders of above-mentioned mine tailing and blast furnace slag is prepared burden with cement clinker and gypsum again, batching by butt weight percentage score is not: powder mix accounts for 85%, and cement clinker accounts for 11%, and gypsum accounts for 4%.The material for preparing is carried out mix grinding for the third time in ball mill, to specific surface area 6000cm
2/ g has just obtained containing the fish reef cementing material of nanometer magnetite quartzite type mine tailing.
(4) above-mentioned mix grinding is the good fish reef cementing material that contains nanometer magnetite quartzite type mine tailing adds gelling material 300kg by every cubic metre of artificial marine habitat concrete, secondary grinding fine powdered coal 100kg, UNF-5 high efficiency water reducing agent 3.8kg, sand 900kg, stone 1150kg, water 190kg can obtain having good working performance after stirring, the artificial marine habitat concrete of higher-strength and low basicity, its main performance index is as shown in table 2.
The artificial marine habitat concrete main performance index that table 2 is prepared with embodiment 2 gained fish reef cementing materials
| Slump (mm) | 3 days ultimate compression strength (MPa) | 28 days ultimate compression strength (MPa) | Anti-penetration grade | Freeze-thaw resistance (inferior) |
| ??185 | ??19.8 | ??41.3 | ??≥P36 | ??186 |
Embodiment 3
(1) magnetite quartzite type mine tailing is carried out classification with 100 eye mesh screens, will sieve the thicker part branch and sift out, sell, the lower part of screen branch is dried to water ratio 0.9% as building sand.Thin mine tailing after the oven dry is levigate to specific surface area 3800cm in grinding machine
2/ g.
(2) with the blast furnace slag after levigated mine tailing in the step 1 and the oven dry more further mix grinding to specific surface area 5000cm
2/ g, the water ratio of wherein going into the blast furnace slag of mill is 0.4%.In secondary mix grinding process, mine tailing and scoriaceous ratio of components with butt weight percentage score are not: mine tailing accounts for 52%, and blast furnace slag accounts for 48%.
(3) mixing fine powders of above-mentioned mine tailing and blast furnace slag is prepared burden with cement clinker and gypsum again, batching by butt weight percentage score is not: powder mix accounts for 75%, and cement clinker accounts for 15%, and gypsum accounts for 10%.The material for preparing is carried out mix grinding for the third time in ball mill, to specific surface area 6000cm
2/ g has just obtained containing the fish reef cementing material of nanometer magnetite quartzite type mine tailing.
(4) above-mentioned mix grinding is the good fish reef cementing material that contains nanometer magnetite quartzite type mine tailing adds gelling material 200kg by every cubic metre of artificial marine habitat concrete, secondary grinding fine powdered coal 200kg, UNF-5 high efficiency water reducing agent 3.5kg, sand 900kg, stone 1150kg, water 190kg can obtain having good working performance after stirring, the artificial marine habitat concrete of higher-strength and low basicity, its main performance index is as shown in table 3.
The artificial marine habitat concrete main performance index that table 3 is prepared with embodiment 3 gained fish reef cementing materials
| Slump (mm) | 3 days ultimate compression strength (MPa) | 28 days ultimate compression strength (MPa) | Anti-penetration grade | Freeze-thaw resistance (inferior) |
| ??195 | ?17.8 | ??36.3 | ??≥P26 | ??156 |
Embodiment 4
(1) magnetite quartzite type mine tailing is carried out classification with 60 eye mesh screens, will sieve the thicker part branch and sift out, sell, the lower part of screen branch is dried to water ratio 0.8% as building sand.Thin mine tailing after the oven dry is levigate to specific surface area 4000cm in grinding machine
2/ g.
(2) with the blast furnace slag after levigated mine tailing in the step 1 and the oven dry more further mix grinding to specific surface area 4800cm
2/ g, the water ratio of wherein going into the blast furnace slag of mill is 0.7%.In secondary mix grinding process, mine tailing and scoriaceous ratio of components with butt weight percentage score are not: mine tailing accounts for 51%, and blast furnace slag accounts for 49%.
(3) mixing fine powders of above-mentioned mine tailing and blast furnace slag is prepared burden with cement clinker and gypsum again, batching by butt weight percentage score is not: powder mix accounts for 85%, and cement clinker accounts for 10, and gypsum accounts for 5%.The material for preparing is carried out mix grinding for the third time in ball mill, to specific surface area 5800cm
2/ g has just obtained containing the fish reef cementing material of nanometer magnetite quartzite type mine tailing.
(4) above-mentioned mix grinding is the good fish reef cementing material that contains nanometer magnetite quartzite type mine tailing adds gelling material 180kg by every cubic metre of artificial marine habitat concrete, secondary grinding fine powdered coal 300kg, UNF-5 high efficiency water reducing agent 5.5kg, sand 800kg, stone 1150kg, water 180kg can obtain having good working performance after stirring, the artificial marine habitat concrete of higher-strength and low basicity, its main performance index is as shown in table 4.
The artificial marine habitat concrete main performance index that table 4 is prepared with embodiment 4 gained fish reef cementing materials
| Slump (mm) | 3 days ultimate compression strength (MPa) | 28 days ultimate compression strength (MPa) | Anti-penetration grade | Freeze-thaw resistance (inferior) |
| ??195 | ?15.6 | ??32.1 | ??≥P20 | ??128 |
Embodiment 5
(1) magnetite quartzite type mine tailing is carried out classification with 80 eye mesh screens, will sieve the thicker part branch and sift out, sell, the lower part of screen branch is dried to water ratio 0.5% as building sand.Thin mine tailing after the oven dry is levigate to specific surface area 3800cm in grinding machine
2/ g.
(2) with the blast furnace slag after levigated mine tailing in the step 1 and the oven dry more further mix grinding to specific surface area 4900cm
2/ g, the water ratio of wherein going into the blast furnace slag of mill is 0.9%.In secondary mix grinding process, mine tailing and scoriaceous ratio of components with butt weight percentage score are not: mine tailing accounts for 50%, and blast furnace slag accounts for 50%.
(3) mixing fine powders of above-mentioned mine tailing and blast furnace slag is prepared burden with cement clinker and gypsum again, batching by butt weight percentage score is not: powder mix accounts for 75%, and cement clinker accounts for 15, and gypsum accounts for 10%.The material for preparing is carried out mix grinding for the third time in ball mill, to specific surface area 5900cm
2/ g has just obtained containing the fish reef cementing material of nanometer magnetite quartzite type mine tailing.
(4) above-mentioned mix grinding is the good fish reef cementing material that contains nanometer magnetite quartzite type mine tailing adds gelling material 420kg by every cubic metre of artificial marine habitat concrete, secondary grinding fine powdered coal 80kg, UNF-5 high efficiency water reducing agent 5.8kg, sand 800kg, stone 1150kg, water 180kg can obtain having good working performance after stirring, the artificial marine habitat concrete of higher-strength and low basicity, its main performance index is as shown in table 5.
The artificial marine habitat concrete main performance index that table 5 is prepared with embodiment 5 gained fish reef cementing materials
| Slump (mm) | 3 days ultimate compression strength (MPa) | 28 days ultimate compression strength (MPa) | Anti-penetration grade | Freeze-thaw resistance (inferior) |
| ??195 | ?38.6 | ??62.1 | ??≥P39 | ??328 |
Claims (2)
1, a kind of fish reef cementing material and manufacture method thereof that contains nano-tailings is characterized in that, magnetite quartzite type mine tailing is carried out classification with 60～100 eye mesh screens, will sieve the thicker part branch and sift out, and the lower part of screen branch is dried to water ratio 0.01%～1%; Thin mine tailing after the oven dry is levigate to specific surface area 3000～4000cm in grinding machine
2/ g; With the blast furnace slag after above-mentioned levigated mine tailing and the oven dry more further mix grinding to specific surface area 4000～5000cm
2/ g, wherein the water ratio of blast furnace slag also requires 0.01%～1%; In secondary mix grinding process, mine tailing and scoriaceous ratio of components with butt weight percentage score are not: mine tailing accounts for 50%～60%, and blast furnace slag accounts for 40%～50%.
2, a kind of according to claim 1 fish reef cementing material and manufacture method thereof that contains nano-tailings is characterized in that, with specific surface area 4000～5000cm
2The mine tailing of/g and the mixing fine powders of blast furnace slag are prepared burden with cement clinker and gypsum again, and batching by butt weight percentage score is not: mixing fine powders accounts for 75%～85%, and cement clinker accounts for 10%～15%, and gypsum accounts for 5%～10%; The material for preparing is carried out mix grinding for the third time in ball mill, to specific surface area 5000～6000cm
2/ g has just obtained containing the fish reef cementing material of nanometer magnetite quartzite type mine tailing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100931303A CN101671132B (en) | 2009-09-29 | 2009-09-29 | Fish reef cementing material containing nano-tailings and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100931303A CN101671132B (en) | 2009-09-29 | 2009-09-29 | Fish reef cementing material containing nano-tailings and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101671132A true CN101671132A (en) | 2010-03-17 |
| CN101671132B CN101671132B (en) | 2011-10-12 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100931303A Expired - Fee Related CN101671132B (en) | 2009-09-29 | 2009-09-29 | Fish reef cementing material containing nano-tailings and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857413A (en) * | 2010-05-28 | 2010-10-13 | 北京科技大学 | Method for preparing fish reef material by utilizing granite ballast powder |
| CN104326686A (en) * | 2014-09-30 | 2015-02-04 | 鄂尔多斯市蒙西建材有限责任公司 | Silicon waste stone cement mixed material |
| CN105263317A (en) * | 2013-02-14 | 2016-01-20 | 艾康克雷特科技有限公司 | Methods and matrices for promoting fauna and flora growth |
| CN113264751A (en) * | 2021-05-24 | 2021-08-17 | 北京科技大学 | Porous material using magnesium solid carbon product as raw material and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1260158C (en) * | 2004-11-09 | 2006-06-21 | 张立省 | New type of ecological cement and its prepn and application |
| CN1792973A (en) * | 2005-12-23 | 2006-06-28 | 武汉理工大学 | Gypsum tailing mine gelled material and preparation process thereof |
| CN101439939B (en) * | 2008-12-24 | 2011-07-20 | 北京科技大学 | Low alkalinity gel material for preparing concrete artificial reef and preparation thereof |
-
2009
- 2009-09-29 CN CN2009100931303A patent/CN101671132B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857413A (en) * | 2010-05-28 | 2010-10-13 | 北京科技大学 | Method for preparing fish reef material by utilizing granite ballast powder |
| CN101857413B (en) * | 2010-05-28 | 2012-10-03 | 北京科技大学 | Method for preparing fish reef material by utilizing granite ballast powder |
| CN105263317A (en) * | 2013-02-14 | 2016-01-20 | 艾康克雷特科技有限公司 | Methods and matrices for promoting fauna and flora growth |
| CN104326686A (en) * | 2014-09-30 | 2015-02-04 | 鄂尔多斯市蒙西建材有限责任公司 | Silicon waste stone cement mixed material |
| CN113264751A (en) * | 2021-05-24 | 2021-08-17 | 北京科技大学 | Porous material using magnesium solid carbon product as raw material and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN101671132B (en) | 2011-10-12 |
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