CN111620636A - Ferronickel slag roller compacted concrete and preparation method thereof - Google Patents
Ferronickel slag roller compacted concrete and preparation method thereof Download PDFInfo
- Publication number
- CN111620636A CN111620636A CN202010475843.2A CN202010475843A CN111620636A CN 111620636 A CN111620636 A CN 111620636A CN 202010475843 A CN202010475843 A CN 202010475843A CN 111620636 A CN111620636 A CN 111620636A
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- CN
- China
- Prior art keywords
- ferronickel slag
- parts
- mass
- cement
- ferronickel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- 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
- C04B28/08—Slag cements
- C04B28/085—Slags from the production of specific alloys, e.g. ferrochrome slags
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/0076—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials characterised by the grain distribution
- C04B20/0096—Fillers with bimodal grain size distribution
-
- 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
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
Landscapes
- 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)
- Road Paving Structures (AREA)
Abstract
The invention relates to the field of recycled building materials, in particular to a nickel iron slag roller compacted concrete; the method is characterized by comprising 10-15 parts by mass of portland cement, 10-15 parts by mass of ferronickel slag powder, 10-15 parts by mass of 1-5mm ferronickel slag particles, 55-70 parts by mass of 5-25mm ferronickel slag particles, and water with the dosage of 0.2-0.3 times that of the cement and the ferronickel slag powder. The invention provides a method for preparing roller compacted concrete by using ferronickel slag powder as a cementing material and ferronickel slag particles as an aggregate. Creatively proposes that the ground ferronickel slag powder is compounded with cement to be used as a cementing material, and the separated ferronickel slag particles are used as aggregate to prepare the road concrete through rolling and forming. Belongs to the reutilization of solid waste, changes waste into valuable, and develops new technology and new approach for additional value utilization of the nickel-iron slag.
Description
Technical Field
The invention relates to the field of recycled building materials, in particular to ferronickel slag roller compacted concrete and a preparation method thereof.
Background
The roller compacted concrete is dry and hard concrete with less unit water consumption and zero slump, is generally constructed in a roller compacted mode, and is suitable for base layers, subbase layers and the like of large-volume concrete road engineering. During construction, an asphalt pavement paving machine is adopted to pave the hard concrete, and a road roller machine is used for rolling and forming. Compared with the traditional common cement concrete, the roller compacted concrete has the advantages of short construction period, cement consumption saving, small unit water consumption, dry shrinkage, high initial strength, short curing time and the like.
At present, the ferronickel smelting technology adopts a 'rotary kiln-submerged arc furnace' method, about 6 tons of ferronickel slag are generated when 1 ton of ferronickel is produced, the ferronickel slag is mainly glass phase, and the chemical components mainly comprise silicon dioxide, aluminum oxide, magnesium oxide and the like. The material has certain hydration activity, but the activity is lower, so the utilization rate is not high, if the ferronickel slag is not treated in time, a large amount of accumulation can be caused, and the environment is polluted.
Disclosure of Invention
The invention aims to overcome the defects and provides a method for recycling ferronickel slag.
In order to achieve the above object, the present invention is realized by:
ferronickel slag roller compacted concrete; comprises 10-15 parts by mass of Portland cement, 10-15 parts by mass of ferronickel slag powder, 10-15 parts by mass of 1-5mm ferronickel slag particles, 55-70 parts by mass of 5-25mm ferronickel slag particles, and water with the dosage of the cement and the ferronickel slag powder being 0.2-0.3 time.
The ferronickel slag roller compacted concrete is prepared by using Portland cement P.O42.5R Portland cement; the specific surface area of the ferronickel slag powder is more than or equal to 350m 3/kg; the water is tap water provided by municipal pipelines.
The application method of the ferronickel slag roller compacted concrete comprises the following steps
Step 1, respectively measuring cement, ferronickel slag powder, ferronickel slag particles of 1-5mm and ferronickel slag particles of 5-25mm, and uniformly stirring in a stirrer to obtain a material;
step 2, adding water into the materials, and uniformly stirring to obtain a dry and hard concrete mixture;
and 3, paving the hard concrete by adopting an asphalt pavement paving machine, and rolling and forming by utilizing a road roller machine.
The invention provides a method for preparing roller compacted concrete by using ferronickel slag powder as a cementing material and ferronickel slag particles as an aggregate. Creatively proposes that the ground ferronickel slag powder is compounded with cement to be used as a cementing material, and the separated ferronickel slag particles are used as aggregate to prepare the road concrete through rolling and forming. Belongs to the reutilization of solid waste, changes waste into valuable, and develops new technology and new approach for additional value utilization of the nickel-iron slag.
Detailed Description
The invention is further illustrated by the following specific examples.
Ferronickel slag roller compacted concrete; comprises 10-15 parts by mass of Portland cement, 10-15 parts by mass of ferronickel slag powder, 10-15 parts by mass of 1-5mm ferronickel slag particles, 55-70 parts by mass of 5-25mm ferronickel slag particles, and water with the dosage of the cement and the ferronickel slag powder being 0.2-0.3 time.
The ferronickel slag roller compacted concrete is prepared by using Portland cement P.O42.5R Portland cement; the specific surface area of the ferronickel slag powder is more than or equal to 350m 3/kg; the water is tap water provided by municipal pipelines.
The application method of the ferronickel slag roller compacted concrete comprises the following steps
Step 1, respectively measuring cement, ferronickel slag powder, ferronickel slag particles of 1-5mm and ferronickel slag particles of 5-25mm, and uniformly stirring in a stirrer to obtain a material;
step 2, adding water into the materials, and uniformly stirring to obtain a dry and hard concrete mixture;
and 3, paving the hard concrete by adopting an asphalt pavement paving machine, and rolling and forming by utilizing a road roller machine.
The invention is further illustrated by the following ferronickel slag concrete formed by a plurality of materials with different proportions:
| numbering | Cement | Ferronickel slag powder | 1-5mm ferronickel slag granules | 5-25mm ferronickel slag particles | Water (W) |
| Y1 | 10 parts by mass | 15 parts by mass | 15 parts by mass | 60 parts by mass | The dosage of the ferronickel slag powder and the cement is 0.25 times of that of the cement |
| Y2 | 15 parts by mass | 10 parts by mass | 15 parts by mass | 60 parts by mass | The dosage of the ferronickel slag powder and the cement is 0.25 times of that of the cement |
| Y3 | 15 parts by mass | 15 parts by mass | 10 parts by mass | 60 parts by mass | The dosage of the ferronickel slag powder and the cement is 0.25 times of that of the cement |
| Y4 | 10 parts by mass | 10 parts by mass | 10 parts by mass | 70 parts by mass | The dosage of the ferronickel slag powder and the cement is 0.25 times of that of the cement |
| Numbering | 28d compressive strength/MPa |
| Y1 | 20.4 |
| Y2 | 24.9 |
| Y3 | 22.3 |
| Y4 | 18.9 |
The 28-day compressive strength test method is carried out according to the industrial standard JTGE30-2005 of Highway engineering cement and cement concrete test regulations.
As can be seen from the comparison of the lists, the invention provides a method for preparing roller compacted concrete by using ferronickel slag powder as a cementing material and ferronickel slag particles as an aggregate. Creatively proposes that the ground ferronickel slag powder is compounded with cement to be used as a cementing material, and the separated ferronickel slag particles are used as aggregate to prepare the road concrete through rolling and forming. Belongs to the reutilization of solid waste, changes waste into valuable, and develops new technology and new approach for additional value utilization of the nickel-iron slag.
Claims (3)
1. Ferronickel slag roller compacted concrete; characterized by comprising 10-15 parts by mass of Portland cement,
10-15 parts of ferronickel slag powder, 10-15 parts of 1-5mm ferronickel slag particles, 55-70 parts of 5-25mm ferronickel slag particles and water with the dosage of 0.2-0.3 times of the cement and the ferronickel slag powder.
2. The ferronickel slag roller compacted concrete according to claim 1, wherein:
portland cement refers to p.o42.5r portland cement;
the specific surface area of the ferronickel slag powder is more than or equal to 350m 3/kg;
the water is tap water provided by municipal pipelines.
3. The use method of the ferronickel slag roller compacted concrete of claim 1, which is characterized by comprising the following steps: comprises that
Step 1, respectively measuring cement, ferronickel slag powder, ferronickel slag particles of 1-5mm and ferronickel slag particles of 5-25mm, and uniformly stirring in a stirrer to obtain a material;
step 2, adding water into the materials, and uniformly stirring to obtain a dry and hard concrete mixture;
and 3, paving the hard concrete by adopting an asphalt pavement paving machine, and rolling and forming by utilizing a road roller machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010475843.2A CN111620636A (en) | 2020-05-29 | 2020-05-29 | Ferronickel slag roller compacted concrete and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010475843.2A CN111620636A (en) | 2020-05-29 | 2020-05-29 | Ferronickel slag roller compacted concrete and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111620636A true CN111620636A (en) | 2020-09-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010475843.2A Pending CN111620636A (en) | 2020-05-29 | 2020-05-29 | Ferronickel slag roller compacted concrete and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111620636A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105645895A (en) * | 2016-01-11 | 2016-06-08 | 淮海工学院 | Ferronickel slag ultrahigh-strength concrete and preparation method thereof |
| CN109369075A (en) * | 2018-11-20 | 2019-02-22 | 广东广青金属科技有限公司 | A kind of abrasion performance concrete and preparation method thereof |
| CN110963767A (en) * | 2019-12-31 | 2020-04-07 | 上海星欣科技发展有限公司 | Roller compacted concrete and preparation method thereof |
| CN110981322A (en) * | 2020-01-14 | 2020-04-10 | 淮阴工学院 | Ferronickel slag aggregate concrete |
-
2020
- 2020-05-29 CN CN202010475843.2A patent/CN111620636A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105645895A (en) * | 2016-01-11 | 2016-06-08 | 淮海工学院 | Ferronickel slag ultrahigh-strength concrete and preparation method thereof |
| CN109369075A (en) * | 2018-11-20 | 2019-02-22 | 广东广青金属科技有限公司 | A kind of abrasion performance concrete and preparation method thereof |
| CN110963767A (en) * | 2019-12-31 | 2020-04-07 | 上海星欣科技发展有限公司 | Roller compacted concrete and preparation method thereof |
| CN110981322A (en) * | 2020-01-14 | 2020-04-10 | 淮阴工学院 | Ferronickel slag aggregate concrete |
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Application publication date: 20200904 |
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| RJ01 | Rejection of invention patent application after publication |