CN108706922A - A kind of nontoxic high water filling material and preparation method using red mud soup - Google Patents
A kind of nontoxic high water filling material and preparation method using red mud soup Download PDFInfo
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- CN108706922A CN108706922A CN201810588845.5A CN201810588845A CN108706922A CN 108706922 A CN108706922 A CN 108706922A CN 201810588845 A CN201810588845 A CN 201810588845A CN 108706922 A CN108706922 A CN 108706922A
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- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/0409—Waste from the purification of bauxite, e.g. red mud
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide cements
- C04B28/12—Hydraulic lime
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
-
- 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
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00663—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of nontoxic high water filling materials and preparation method using red mud soup, raw material is made of component A and B component, wherein, component A according to the mass fraction, including 40~60 parts of red mud soup, 30~50 parts of crude tailings, 200~400 parts of water, 3~10 parts of curing agent；B component according to the mass fraction, including 45~60 parts of passivator, 40~60 parts of aluminium powder；Red mud soup is the waste material for refining the flowable state generated after aluminium oxide and containing red mud, and the moisture content of red mud soup is 55~65% (quality), and crude tailings are not sorted wholegrain grade tailings.High water filling material early strength height provided by the invention, good fluidity, dilatancy is good does not shrink, and can be fully populated with and connect top, nontoxicity.
Description
Technical field
The present invention relates to high water packing material fields, and in particular to a kind of nontoxic high water filling material using red mud soup and
Preparation method.
Background technology
Red mud is the industrial solid wastes being discharged after refinement aluminium oxide in bauxite.It is every in China's aluminum oxide production process
The red mud amount of year discharge is just up to 6,000,000 tons, all outdoor stockpilings, and most of stockyard dam body is constructed with red mud.Red mud piling up
A large amount of soils are not only taken up, expend more stockyard construction and maintenance cost, and are present in the alkali in red mud to subsurface wastewater infiltration system,
Cause body of groundwater and soil pollution.The dust that exposed red mud is formed is flown upward with the wind, pollutes air, the life to the mankind and animals and plants
It deposits and adversely affects, deteriorate ecological environment.So the yield of limitation red mud and harm to greatest extent, is realized by all kinds of means, greatly
The recycling of quantity is extremely urgent.
Rich coal resources in China, but its occurrence characteristics " under three " pressure coal it is commonplace, coal mining cause subsidence,
Building destruction and underground water and land resource are reduced, and keep mining area ecological environment problem more and more prominent.Filling in mine mining can
Reduce working face high stress, reduce goaf depression, improve ore recovery rate, improve CONTROL OF STRATA MOVEMENT situation and reduce tailing and
It stores up on the ground of barren rock.So filling system is more and more common.Conventional cementitious mining with stowing is generally portland cement, uses
Amount is 150~300kgm-3, cement price, which goes up, has raised filling cost so that and the economic benefit of filling in mine mining declines,
Constrain the application and development of Cut-and-fill Mining Technology.Therefore, it is badly in need of a kind of to meet actual requirement of engineering and economic and environment-friendly filling
Filling chock material.Currently, have some scholars is used for filler preparation field by red mud, however the red mud that the prior art utilizes is
Refine the red mud that the red mud soup of flowable state generated after aluminium oxide removes moisture removal by press filtration, and for the utilization of red mud, it need to be into
One step carries out drying and grinding, plenty of time and the energy is consumed, and cannot solve the toxicity problem of red mud, to soil and underground
Water pollutes.
Invention content
In order to solve the deficiencies in the prior art, an object of the present invention is to provide a kind of nontoxic Gao Shui using red mud soup
Filler, the high water filling material early strength height, good fluidity, dilatancy are good, can be fully populated with and connect top, nontoxicity.
To achieve the goals above, the technical scheme is that：
A kind of nontoxic high water filling material using red mud soup, raw material are made of component A and B component, wherein
Component A according to the mass fraction, including 40~60 parts of red mud soup, 30~50 parts of crude tailings, 200~400 parts of water, solidification
3~10 parts of agent；
B component according to the mass fraction, including 45~60 parts of passivator, 40~60 parts of aluminium powder；
The red mud soup is the waste material for refining the flowable state generated after aluminium oxide and containing red mud, the moisture content of the red mud soup
For 55~65% (quality), the crude tailings are not sorted wholegrain grade tailings.Use red mud soup that can dry grinding with abbreviation
Process, red mud soup moisture content is high, can greatly save cost.It can make slurry property after red mud soup and curing agent, passivator cooperation
Stablize, inhibits the release of wherein heavy metal element.Its all the components can be made full use of as raw material using red mud soup and crude tailings, is fitted
When the concentration for improving filling slurry.
The second object of the present invention is to provide a kind of preparation method of the nontoxic high water filling material using red mud soup, by A
The raw material of component, which is placed in agravic blender, to stir evenly, and the raw material of B component is directly mixed, wherein
Component A according to the mass fraction, including 40~60 parts of red mud soup, 30~50 parts of crude tailings, 200~400 parts of water, solidification
3~10 parts of agent；
B component according to the mass fraction, including 45~60 parts of passivator, 40~60 parts of aluminium powder；
The red mud soup is the waste material for refining the flowable state generated after aluminium oxide and containing red mud, the moisture content of the red mud soup
For 55~65% (quality), the crude tailings are not sorted wholegrain grade tailings.
Beneficial effects of the present invention are：
1, high water filling material of the invention has early strength height, good fluidity, dilatancy good, can be fully populated with and connect
The advantages that top, nontoxicity, and production process is simple, easy to spread.
2, the feature that the present invention directly utilizes red mud soup moisture content high subtracts significantly without carrying out drying and grinding to red mud
Lack the consumption of time and the energy, it is time saving and energy saving.
3, the passivator in the present invention can generate heavy metal element absorption, cooperation and co-precipitation, a limitation huge sum of money
The movement of category improves the stability of heavy metal, it is inhibited to discharge again, realizes green filling.
4, the aluminium powder in the present invention can enable high water filling material actively press top tight filling goaf, effectively control
Ground pressure activity limits ground settlement, realizes safety mining, protects earth's surface not go to pot, maintain original ecological environment.
5, the present invention large can utilize solid waste, realize that solid wastes recycling utilizes.
Specific implementation mode
It is noted that described further below be all exemplary, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
As background technology is introduced, exist in the prior art for red mud using need to further carry out drying and powder
The deficiency of the toxicity problem of red mud is ground and cannot solve, in order to solve technical problem as above, present applicant proposes a kind of profits
With the nontoxic high water filling material and preparation method of red mud soup.
A kind of exemplary embodiment of the application provides a kind of nontoxic high water filling material using red mud soup, raw material
It is made of component A and B component, wherein
Component A according to the mass fraction, including 40~60 parts of red mud soup, 30~50 parts of crude tailings, 200~400 parts of water, solidification
3~10 parts of agent；
B component according to the mass fraction, including 45~60 parts of passivator, 40~60 parts of aluminium powder；
The red mud soup is the waste material for refining the flowable state generated after aluminium oxide and containing red mud, the moisture content of the red mud soup
For 55~65% (quality), the crude tailings are not sorted wholegrain grade tailings.
Preferably, the curing agent is at least one of cement, lime, land plaster.Addition curing agent can make slurry
Matter is stable, uniformly and is not easy to isolate.Filler early strength can be improved simultaneously by making curing agent using cement, lime, land plaster
The inhibition to heavy metal element can be realized simultaneously.
Preferably, the passivator is at least one of bentonite, desulfurated plaster, flyash.Using bentonite, desulfurization
These three passivator of gypsum, flyash inhibit the ability of heavy metal element release strong, and mixing utilizing status is more preferably.
Still more preferably, the mixing that the passivator is two kinds in bentonite, desulfurated plaster, flyash.By contrast
It realizes and finds, the passivation effect of the combination of two kinds of ingredients is better than the passivation effect of single component.
Preferably, the ratio of mud is 5~7:1.The ratio of mud refers to：The ratio of water and red mud soup, crude tailings.The ratio of mud be 5~
7:1 can ensure there is preferable suspension and mobility when filling slurry uses, the Hydraulic transportation of low concentration slurry in realization,
The difficulty of Rich thickness transportation is avoided, process engineering is simplified, reduces filling cost.
The another embodiment of the application provides a kind of preparation side of the nontoxic high water filling material using red mud soup
The raw material of component A is placed in agravic blender and stirs evenly by method, and the raw material of B component is directly mixed, wherein
Component A according to the mass fraction, including 40~60 parts of red mud soup, 30~50 parts of crude tailings, 200~400 parts of water, solidification
3~10 parts of agent；
B component according to the mass fraction, including 45~60 parts of passivator, 40~60 parts of aluminium powder；
The red mud soup is the waste material for refining the flowable state generated after aluminium oxide and containing red mud, the moisture content of the red mud soup
For 55~65% (quality), the crude tailings are not sorted wholegrain grade tailings.
Preferably, the curing agent is at least one of cement, lime, land plaster.
Preferably, the passivator is at least one of bentonite, desulfurated plaster, flyash.
Still more preferably, the mixing that the passivator is two kinds in bentonite, desulfurated plaster, flyash.
Preferably, the ratio of mud is 5~7:1.
Embodiment there is provided a kind of application methods of above-mentioned high water filling material for the third of the application, by component A
Raw material, which is placed in agravic blender to stir evenly, obtains slurry A, and the raw material of B component is directly mixed and obtains material B, by material
B is filled after being added in slurry A.
In order to enable those skilled in the art can clearly understand the technical solution of the application, below with reference to tool
The technical solution of the application is described in detail in the embodiment of body.
Embodiment 1
The ratio of mud of the present embodiment is 5:1
The raw material of component A is as shown in table 1, and the raw material of B component is as shown in table 2.
The raw material of 1 component A of table forms
Red mud soup is the waste material for refining the flowable state generated after aluminium oxide and containing red mud, and the moisture content of red mud soup is 58%
(quality), the crude tailings are not sorted wholegrain grade tailings.
The raw material of 2 B component of table forms
According to table 1 raw material form weighing, be added to be placed in agravic blender stir evenly obtain slurry A, according to
Mixing obtains material B after the raw material composition weighing of table 2, fills, is detected after material B is added in slurry A, detects
As a result as shown in table 3.1~3.2.
The content of beary metal of the high water filling material of 3.1 embodiment 1 of table
The filling performance of the high water filling material of 3.2 embodiment 1 of table
Embodiment 2
The ratio of mud of the present embodiment is 6:1
The raw material of component A is as shown in table 4, and the raw material of B component is as shown in table 5.
The raw material of 4 component A of table forms
Red mud soup is the waste material for refining the flowable state generated after aluminium oxide and containing red mud, and the moisture content of red mud soup is 59%
(quality), the crude tailings are not sorted wholegrain grade tailings.
The raw material of 5 B component of table forms
According to table 4 raw material form weighing, be added to be placed in agravic blender stir evenly obtain slurry A, according to
Mixing obtains material B after the raw material composition weighing of table 5, fills, is detected after material B is added in slurry A, detects
As a result as shown in table 6.1~6.2.
The content of beary metal of the high water filling material of 6 embodiment 2 of table
The filling performance of the high water filling material of 6.2 embodiment 2 of table
Embodiment 3
The ratio of mud of the present embodiment is 7:1
The raw material of component A is as shown in table 7, and the raw material of B component is as shown in table 8.
The raw material of 7 component A of table forms
Red mud soup is the waste material for refining the flowable state generated after aluminium oxide and containing red mud, and the moisture content of red mud soup is 64%
(quality), the crude tailings are not sorted wholegrain grade tailings.
The raw material of 8 B component of table forms
According to table 7 raw material form weighing, be added to be placed in agravic blender stir evenly obtain slurry A, according to
Mixing obtains material B after the raw material composition weighing of table 8, fills, is detected after material B is added in slurry A, detects
As a result as shown in table 9.1~9.2.
The content of beary metal of the high water filling material of 9.1 embodiment 3 of table
The filling performance of the high water filling material of 9.2 embodiment 3 of table
Embodiment 4
The raw material of component A is as shown in table 1, and the raw material of B component is as shown in table 2.
The raw material of 10 component A of table forms
For red mud soup to mix acquisition after red mud drying grinding with water, the moisture content of red mud soup is 14.3% (quality), described
Crude tailings are not sorted wholegrain grade tailings.
The raw material of 11 B component of table forms
According to table 10 raw material form weighing, be added to be placed in agravic blender stir evenly obtain slurry A, according to
Mixing obtains material B after the raw material composition weighing of table 11, fills, is detected after material B is added in slurry A, examines
Result is surveyed as shown in table 12.1~12.2.
The content of beary metal of the high water filling material of 12.1 embodiment 4 of table
The filling performance of the high water filling material of 12.2 embodiment 4 of table
The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for the skill of this field
For art personnel, the application can have various modifications and variations.Within the spirit and principles of this application, any made by repair
Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of nontoxic high water filling material using red mud soup, characterized in that raw material is made of component A and B component, wherein
Component A according to the mass fraction, including 40~60 parts of red mud soup, 30~50 parts of crude tailings, 200~400 parts of water, curing agent 3
~10 parts；
B component according to the mass fraction, including 45~60 parts of passivator, 40~60 parts of aluminium powder；
The red mud soup is the waste material for refining the flowable state generated after aluminium oxide and containing red mud, and the moisture content of the red mud soup is 55
~65% (quality), the crude tailings are not sorted wholegrain grade tailings.
2. high water filling material as described in claim 1, characterized in that the curing agent is in cement, lime, land plaster
It is at least one.
3. high water filling material as described in claim 1, characterized in that the passivator is bentonite, desulfurated plaster, fine coal
At least one of ash.
4. high water filling material as claimed in claim 3, characterized in that the passivator is bentonite, desulfurated plaster, fine coal
Two kinds of mixing in ash.
5. high water filling material as described in claim 1, characterized in that the ratio of mud is 5~7:1.
6. a kind of preparation method of nontoxic high water filling material using red mud soup, characterized in that the raw material of component A is placed in nothing
It is stirred evenly in gravity mixer, the raw material of B component is directly mixed, wherein
Component A according to the mass fraction, including 40~60 parts of red mud soup, 30~50 parts of crude tailings, 200~400 parts of water, curing agent 3
~10 parts；
B component according to the mass fraction, including 45~60 parts of passivator, 40~60 parts of aluminium powder；
The red mud soup is the waste material for refining the flowable state generated after aluminium oxide and containing red mud, and the moisture content of the red mud soup is 55
~65% (quality), the crude tailings are not sorted wholegrain grade tailings.
7. preparation method as claimed in claim 6, characterized in that the curing agent is cement, lime, in land plaster at least
It is a kind of.
8. preparation method as claimed in claim 6, characterized in that the passivator is in bentonite, desulfurated plaster, flyash
At least one；
Preferably, the mixing that the passivator is two kinds in bentonite, desulfurated plaster, flyash.
9. preparation method as claimed in claim 6, characterized in that the ratio of mud is 5~7:1.
10. a kind of application method of any high water filling material of Claims 1 to 5, characterized in that by the original of component A
Material, which is placed in agravic blender to stir evenly, obtains slurry A, and the raw material of B component is directly mixed and obtains material B, by material B
It is filled after being added in slurry A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810588845.5A CN108706922A (en) | 2018-06-08 | 2018-06-08 | A kind of nontoxic high water filling material and preparation method using red mud soup |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810588845.5A CN108706922A (en) | 2018-06-08 | 2018-06-08 | A kind of nontoxic high water filling material and preparation method using red mud soup |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110256028A (en) * | 2019-06-13 | 2019-09-20 | 山东大学 | A kind of bastard coal ground mass mine cemented filling material and preparation method |
| CN111302746A (en) * | 2020-02-27 | 2020-06-19 | 山东大学 | Red mud-based ceramsite concrete and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1186899A (en) * | 1997-01-03 | 1998-07-08 | 长沙矿山研究院 | Mine filling cementing agent |
| US6033467A (en) * | 1995-06-26 | 2000-03-07 | Fenicem Minerals Inc. | Method of making cement or mine backfill from base metal smelter slag |
| CN102101790A (en) * | 2010-12-30 | 2011-06-22 | 淄博市王庄煤矿 | Tailing-based fluid swelling filling material |
| CN105198329A (en) * | 2014-06-18 | 2015-12-30 | 阳泉市高星建材外加剂有限公司 | High-water-content filling material and preparation method and using method thereof |
-
2018
- 2018-06-08 CN CN201810588845.5A patent/CN108706922A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6033467A (en) * | 1995-06-26 | 2000-03-07 | Fenicem Minerals Inc. | Method of making cement or mine backfill from base metal smelter slag |
| CN1186899A (en) * | 1997-01-03 | 1998-07-08 | 长沙矿山研究院 | Mine filling cementing agent |
| CN102101790A (en) * | 2010-12-30 | 2011-06-22 | 淄博市王庄煤矿 | Tailing-based fluid swelling filling material |
| CN105198329A (en) * | 2014-06-18 | 2015-12-30 | 阳泉市高星建材外加剂有限公司 | High-water-content filling material and preparation method and using method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110256028A (en) * | 2019-06-13 | 2019-09-20 | 山东大学 | A kind of bastard coal ground mass mine cemented filling material and preparation method |
| CN111302746A (en) * | 2020-02-27 | 2020-06-19 | 山东大学 | Red mud-based ceramsite concrete and preparation method and application thereof |
| CN111302746B (en) * | 2020-02-27 | 2021-05-11 | 山东大学 | Red mud-based ceramsite concrete and preparation method and application thereof |
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Application publication date: 20181026 |
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