CN116040974A - Method for preparing superfine powder cement admixture - Google Patents
Method for preparing superfine powder cement admixture Download PDFInfo
- Publication number
- CN116040974A CN116040974A CN202310272089.6A CN202310272089A CN116040974A CN 116040974 A CN116040974 A CN 116040974A CN 202310272089 A CN202310272089 A CN 202310272089A CN 116040974 A CN116040974 A CN 116040974A
- Authority
- CN
- China
- Prior art keywords
- slag
- cement
- parts
- powder
- superfine powder
- 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.)
- Pending
Links
- 239000000843 powder Substances 0.000 title claims abstract description 38
- 239000004568 cement Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000002893 slag Substances 0.000 claims abstract description 28
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 13
- 230000023556 desulfurization Effects 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000010881 fly ash Substances 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000002360 preparation method Methods 0.000 claims description 7
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 9
- 239000011707 mineral Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000002156 mixing Methods 0.000 abstract description 3
- 239000004615 ingredient Substances 0.000 abstract description 2
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000011398 Portland cement Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000004575 stone Substances 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
- 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
- C04B20/02—Treatment
- C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
-
- 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
- C04B18/0481—Other specific industrial waste materials not provided for elsewhere in C04B18/00
-
- 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
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/062—Purification products of smoke, fume or exhaust-gases
-
- 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
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
-
- 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
- C04B20/02—Treatment
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Combustion & Propulsion (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a method for preparing an ultrafine powder cement admixture, which is prepared from the following raw materials in parts by weight: 30-50 parts of water slag, 40-65 parts of fly ash and 5-10 parts of industrial desulfurization slag, and the materials are mixed together according to the weight proportion and ground into the powder with the specific surface area of 700-880m 2 The invention has the advantages that the powder of/Kg is: 1. the mixed ingredients of the granulated slag, the fly ash and the industrial desulfurization slag are adopted to replace mineral powder to be added into the cement, so that the strength of the cement is effectively improved, and the production cost of the cement is reduced; 2. the activity of the cement product is also effectively improved by reasonably mixing the water slag, the fly ash and the industrial desulfurization slag.
Description
Technical Field
The invention relates to a manufacturing method of an admixture, in particular to a manufacturing method of a cement admixture.
Background
Cement is a powdery hydraulic inorganic cementing material. The water is added and stirred to form slurry, which can be hardened in air or water and firmly bond sand, stone and other materials together to form concrete. The existing ordinary Portland cement is difficult to meet the requirement of part of high concrete strength, and a method of blending mineral powder into cement is generally adopted to improve the concrete strength. However, the price of the mineral powder is high, and the strength of the concrete is improved to a certain extent after the mineral powder is blended into the cement, but the production cost of the cement is also improved. The market popularization is limited.
Disclosure of Invention
The invention aims to solve the defects and provide a preparation method of the superfine powder cement admixture, which has low production cost, can effectively increase the cement strength and the activity, and can also improve the cement performance.
The technical solution adopted by the invention for solving the technical problems is as follows:
the preparation method of the superfine powder cement admixture comprises the following raw materials in parts by weight: 30-50 parts of water slag, 40-65 parts of fly ash and 5-10 parts of industrial desulfurization slag, and the materials are mixed together according to the weight proportion and ground into the powder with the specific surface area of 700-880m 2 Powder per Kg.
Preferably, the water slag is iron-making blast furnace slag.
Preferably, the industrial desulfurization slag is replaced by phosphogypsum, and the phosphogypsum is dried until the water content is 7-8% for use.
The beneficial effects achieved by adopting the technical proposal of the invention are as follows:
1. the mixed ingredients of the granulated slag, the fly ash and the industrial desulfurization slag are adopted to replace mineral powder to be added into the cement, so that the strength of the cement is effectively improved, and the production cost of the cement is reduced.
2. The activity of the cement product is also effectively improved by reasonably mixing the water slag, the fly ash and the industrial desulfurization slag.
3. The workability of the concrete is improved, the water demand of the concrete is reduced, the hydration heat is reduced, and the cracking phenomenon of the concrete can be effectively prevented.
Detailed Description
Example 1: the preparation method of the superfine powder cement admixture comprises the following raw materials by weight: 30 kg of iron-making blast furnace slag, 65 kg of fly ash and 5 kg of industrial desulfurization slag are mixed together according to the weight proportion and ground into the powder with the specific surface area of 880m 2 Powder per Kg.
As can be seen from the analysis of the above table, the specific surface area is 880m when the above weight ratio is adopted 2 In the case of/Kg, when the amount of the admixture is 50%, the product manufactured by the method has the best compression resistance and activity index performance.
Note that: the base sample is the relevant data of the additive amount of the mineral powder with corresponding percentage content; the sample is the relevant data of the corresponding percentage of superfine powder admixture.
Example 2: the preparation method of the superfine powder cement admixture comprises the following raw materials in parts by weight: 50 kg of iron-making blast furnace slag, 40 kg of fly ash and 10 kg of industrial desulfurization slag are mixed together according to the weight proportion and ground into the powder with the specific surface area of 850m 2 Powder per Kg.
As can be seen from the analysis of the above table, the specific surface area was 850m when the above weight ratio was used 2 In the case of/Kg, when the amount of the admixture is 50%, the product manufactured by the method has the best compression resistance and activity index performance.
Note that: the base sample is the relevant data of the additive amount of the mineral powder with corresponding percentage content; the sample is the relevant data of the corresponding percentage of superfine powder admixture.
Example 3: the preparation method of the superfine powder cement admixture comprises the following raw materials in parts by weight: 33 kg of iron-making blast furnace slag, 52 kg of fly ash and 8 kg of industrial desulfurization slag are mixed together according to the weight proportion and ground into the specific surface area of 800m 2 Powder per Kg.
As is clear from the analysis of the above table, the specific surface area was 800m when the above weight ratio was used 2 In the case of/Kg, when the amount of the admixture is 40%,the product manufactured by the method has the best compression resistance and activity index performance.
Note that: the base sample is the relevant data of the additive amount of the mineral powder with corresponding percentage content; the sample is the relevant data of the corresponding percentage of superfine powder admixture.
Example 4: the preparation method of the superfine powder cement admixture comprises the following raw materials in parts by weight: 46 kg of iron-making blast furnace slag, 50 kg of fly ash and 6 kg of phosphogypsum are mixed together according to the weight proportion and ground into the powder with the specific surface area of 700m 2 Powder per Kg. The phosphogypsum is dried until the water content is 7-8 percent for use.
As can be seen from the analysis of the above table, the specific surface area was 700m when the above weight ratio was used 2 Under the condition of/Kg, when the content of the admixture is 30%, the product manufactured by the method has the best compression resistance and activity index performance.
Note that: the base sample is the relevant data of the additive amount of the mineral powder with corresponding percentage content; the sample is the relevant data of the corresponding percentage of superfine powder admixture.
Claims (3)
1. The preparation method of the superfine powder cement admixture is characterized by comprising the following raw materials in parts by weight: 30-50 parts of water slag, 40-65 parts of fly ash and 5-10 parts of industrial desulfurization slag, and the materials are mixed together according to the weight proportion and ground into the powder with the specific surface area of 700-880m 2 Powder per Kg.
2. The method for preparing the superfine powder cement admixture according to claim 1, which is characterized in that: the water slag is iron-making blast furnace slag.
3. The method for preparing the superfine powder cement admixture according to claim 1, which is characterized in that: the industrial desulfurization slag is replaced by phosphogypsum, and the phosphogypsum is dried until the water content is 7-8 percent, so that the industrial desulfurization slag can be used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310272089.6A CN116040974A (en) | 2023-03-20 | 2023-03-20 | Method for preparing superfine powder cement admixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310272089.6A CN116040974A (en) | 2023-03-20 | 2023-03-20 | Method for preparing superfine powder cement admixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116040974A true CN116040974A (en) | 2023-05-02 |
Family
ID=86131566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310272089.6A Pending CN116040974A (en) | 2023-03-20 | 2023-03-20 | Method for preparing superfine powder cement admixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116040974A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401607A (en) * | 2002-07-25 | 2003-03-12 | 中国建筑材料科学研究院 | Composite low-heat-release high-active superfine powder concrete admixture and making method thereof |
| CN104030594A (en) * | 2014-05-30 | 2014-09-10 | 山东众森科技股份有限公司 | Nickel slag and manganese slag concrete compound admixture and preparation method thereof |
| CN106082753A (en) * | 2016-06-12 | 2016-11-09 | 陕西建业环保科技有限公司 | Superfine powder concrete admixture |
| CN110407492A (en) * | 2019-08-21 | 2019-11-05 | 山东鲁碧建材有限公司 | A kind of modified superfine fly ash aggregate |
| CN115432951A (en) * | 2022-10-07 | 2022-12-06 | 江苏金木土科技有限公司 | Preparation method of mineral admixture for commercial concrete |
| CN115466069A (en) * | 2022-09-09 | 2022-12-13 | 安徽工业大学 | Full-solid waste composite powder for cementing material and preparation method thereof |
| CN115490449A (en) * | 2022-10-07 | 2022-12-20 | 江苏金木土科技有限公司 | Preparation method of superfine mineral admixture |
-
2023
- 2023-03-20 CN CN202310272089.6A patent/CN116040974A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401607A (en) * | 2002-07-25 | 2003-03-12 | 中国建筑材料科学研究院 | Composite low-heat-release high-active superfine powder concrete admixture and making method thereof |
| CN104030594A (en) * | 2014-05-30 | 2014-09-10 | 山东众森科技股份有限公司 | Nickel slag and manganese slag concrete compound admixture and preparation method thereof |
| CN106082753A (en) * | 2016-06-12 | 2016-11-09 | 陕西建业环保科技有限公司 | Superfine powder concrete admixture |
| CN110407492A (en) * | 2019-08-21 | 2019-11-05 | 山东鲁碧建材有限公司 | A kind of modified superfine fly ash aggregate |
| CN115466069A (en) * | 2022-09-09 | 2022-12-13 | 安徽工业大学 | Full-solid waste composite powder for cementing material and preparation method thereof |
| CN115432951A (en) * | 2022-10-07 | 2022-12-06 | 江苏金木土科技有限公司 | Preparation method of mineral admixture for commercial concrete |
| CN115490449A (en) * | 2022-10-07 | 2022-12-20 | 江苏金木土科技有限公司 | Preparation method of superfine mineral admixture |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |