CN111454022A - Method for preparing dry-mixed mortar by replacing natural sand with industrial waste residue nickel slag - Google Patents
Method for preparing dry-mixed mortar by replacing natural sand with industrial waste residue nickel slag Download PDFInfo
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- CN111454022A CN111454022A CN202010369768.1A CN202010369768A CN111454022A CN 111454022 A CN111454022 A CN 111454022A CN 202010369768 A CN202010369768 A CN 202010369768A CN 111454022 A CN111454022 A CN 111454022A
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- China
- Prior art keywords
- mortar
- dry
- nickel slag
- mixed mortar
- industrial waste
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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
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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
- 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
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
- C04B18/144—Slags from the production of specific metals other than iron or of specific alloys, e.g. ferrochrome slags
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- 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
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
-
- 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
- C04B2111/76—Use at unusual temperatures, e.g. sub-zero
- C04B2111/766—Low temperatures, but above zero
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a method for preparing dry-mixed mortar by replacing natural sand with industrial waste nickel slag, which comprises the steps of mechanically screening the industrial waste nickel slag discharged by nickel product production enterprises, mixing 80-100 parts by weight of the waste nickel slag with 10-25 parts by weight of 425 ordinary cement, stirring and uniformly mixing the waste nickel slag and the 425 ordinary cement to obtain a mortar product, namely the dry-mixed mortar, and can be widely applied to mortar products such as ground mortar, waterproof mortar, internal and external wall interface mortar and the like constructed in industrial and civil building engineering and the like; the quality of the dry-mixed mortar product exceeds that of a natural sand dry-mixed mortar product, the dry-mixed mortar product has the characteristics of efficient resource utilization, energy conservation and emission reduction, no secondary pollution, 100 percent saving of expenses of natural sand, land resources and the like, and reduction of production cost.
Description
Technical Field
The invention belongs to the field of resource utilization, energy conservation and environmental protection or new building materials, and particularly relates to a method for preparing dry-mixed mortar by replacing natural sand with industrial waste nickel slag.
Background
The industrial waste residue nickel slag is waste residue discharged by nickel product production enterprises, contains a large amount of nickel elements and other components, has the water content of about 25 percent, contains a small amount of oxides, is difficult to popularize in development and utilization, can only adopt a land stacking and burying mode, can cause serious pollution to the ecological environment for a long time, and is one of the main hazards of the nickel product production enterprises. In order to change waste into valuable, eliminate waste nickel slag, break through the technical bottleneck existing in the aspect of recycling waste nickel slag at present, produce dry-mixed mortar by replacing natural sand by 100 percent of nickel slag, and apply the dry-mixed mortar to building engineering construction material mortar such as plastering mortar, ground mortar, waterproof mortar, internal and external wall interface mortar, ceramic tile mortar, grouting mortar, special waterproof mortar and the like in industrial and civil building engineering, and the method is one of the technical problems which are urgently needed to be solved by technical personnel in the field.
Disclosure of Invention
The invention aims to overcome the technical problems that the industrial waste residue nickel slag can only be stacked and buried in land and can not replace natural sand by 100 percent to produce dry-mixed mortar for various mortars in the construction of industrial and civil building engineering and the like, and provides a preparation method of the dry-mixed mortar with high attached value, low energy consumption and simple process, which improves the service performance of the dry-mixed mortar, ensures and improves the quality of the dry-mixed mortar and reduces the production cost of the dry-mixed mortar.
The technical scheme provided by the invention is as follows:
a method for preparing dry-mixed mortar by using industrial waste nickel slag to replace natural sand comprises the steps of mechanically screening industrial waste nickel slag discharged by nickel product production enterprises, and uniformly mixing the waste nickel slag and 425 ordinary cement to obtain a mortar product, namely the dry-mixed mortar.
Preferably, the waste residue nickel slag is 80-100 parts by weight; 425 parts of ordinary cement by weight portion is 10-25 parts.
Preferably, the industrial waste residue nickel slag needs to be mechanically sieved by a 120-mesh sieve, and the water content of the waste residue nickel slag is less than 0.5%.
Preferably, the dry-mixed mortar has the following quality technical indexes: the coagulation time is not less than 120 minutes; the bonding strength is more than 0.4 mpa; the water retention rate is more than 95 percent; the frost resistance is less than 21 percent; the shrinkage rate is less than 0.13% in 28 days; the flexural strength of 3 days and 28 days is 2.5-4.0mpa and 5.0-7.5mpa respectively; the compressive strength of 3 days and 28 days is 7.0-26.0mpa and 20.0-55.0mpa respectively.
Preferably, the industrial waste nickel slag can replace natural sand by 100 percent and is used for producing dry-mixed mortar.
The invention discloses a method for applying the dry-mixed mortar to plastering mortar, ground mortar, waterproof mortar, internal and external wall interface mortar, ceramic tile mortar, grouting mortar and special waterproof mortar for industrial and civil engineering construction.
Compared with the prior art, the invention has the following technical advantages:
(1) the dry-mixed mortar prepared by the invention is an energy-saving and emission-reducing product for efficiently recycling waste residue nickel slag, has no secondary pollution in the preparation process, saves natural sand exploitation resources by 100 percent, protects the ecological environment from being damaged and polluted, greatly saves land stacking resources and cost, reduces the production cost, provides a good technical means for solving the problem of waste residue nickel slag discharged by nickel product production enterprises, provides a new technical product material for the building industry, and can be produced in large scale.
(2) The industrial waste residue nickel slag needs to be mechanically sieved by a 120-mesh sieve, the moisture of the waste residue nickel slag is less than 0.5 percent, and a new mineral composition can be generated, so that the dry-mixed mortar has the advantages of reduced water requirement, good fluidity and no need of using auxiliary agents such as a water reducing agent, a water-retaining agent and the like.
(3) The dry-mixed mortar is prepared by 100% of waste residue nickel slag discharged by nickel product production enterprises instead of natural sand, can be widely used in plastering mortar, ground mortar, waterproof mortar, internal and external wall interface mortar, ceramic tile mortar, grouting mortar and special waterproof mortar for industrial and civil building engineering construction, and has the following quality technical indexes by determination: the coagulation time is not less than 120 minutes; the bonding strength is more than 0.4 mpa; the water retention rate is more than 95 percent; the frost resistance is less than 21 percent; the shrinkage rate is less than 0.13% in 28 days; the flexural strength of 3 days and 28 days is 2.5-4.0mpa and 5.0-7.5mpa respectively; the compressive strength of 3 days and 28 days is 7.0-26.0mpa and 20.0-55.0mpa respectively. Therefore, the dry-mixed mortar product has the advantages of high quality mortar strength, strong cohesiveness, strong frost resistance, small dry shrinkage and good water retention property.
Detailed Description
The product of the invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Example 1
The invention discloses a method for preparing dry-mixed mortar by replacing natural sand with industrial waste nickel slag, which comprises the following steps: after industrial waste residue nickel slag discharged by nickel product production enterprises is mechanically sieved by a 120-mesh sieve, the moisture content of the industrial waste residue nickel slag is controlled within 0.5 percent, and the obtained nickel slag product is 80 parts by weight and 10 parts by weight of 425 ordinary cement, and the obtained nickel slag product and the 425 ordinary cement are stirred and mixed uniformly to obtain the dry-mixed mortar.
In the invention, the use level of the dry-mixed mortar produced by using the industrial waste residue nickel slag to replace natural sand is 100 percent. Through determination, the dry-mixed mortar has the following quality technical indexes: coagulation time 185 minutes; the bonding strength is 0.8 mpa; the water retention rate is 105 percent; frost resistance 18.9%; the dry shrinkage rate is 0.06 percent in 28 days; the flexural strength of 3 days and 28 days is 3.0mpa and 6.5mpa respectively; the compressive strength of the concrete is 19.6mpa and 51.5mpa in 3 days and 28 days respectively. Therefore, the product of the invention can be widely used in plastering mortar, ground mortar, waterproof mortar, internal and external wall interface mortar, ceramic tile mortar, grouting mortar and special waterproof mortar for construction of industrial and civil building engineering and the like.
Example 2
The invention discloses a method for preparing dry-mixed mortar by replacing natural sand with industrial waste nickel slag, which comprises the following steps: after industrial waste residue nickel slag discharged by nickel product production enterprises is mechanically sieved by a 120-mesh sieve, the moisture content of the industrial waste residue nickel slag is controlled within 0.5 percent, and the obtained nickel slag product is mixed with 425 ordinary cement by weight parts in 90 parts by weight, and the mixture is uniformly stirred and mixed to obtain the dry-mixed mortar.
In the invention, the use level of the dry-mixed mortar produced by using the industrial waste residue nickel slag to replace natural sand is 100 percent. Through determination, the dry-mixed mortar has the following quality technical indexes: coagulation time 205 minutes; the bonding strength is 0.9 mpa; the water retention rate is 106 percent; frost resistance 17.9%; the dry shrinkage rate is 0.59 percent in 28 days; the flexural strength of 3 days and 28 days is 3.6mpa and 6.8mpa respectively; the compressive strength of the steel plate is 20.1mpa and 53.2mpa in 3 days and 28 days respectively. Therefore, the product of the invention can be widely used in plastering mortar, ground mortar, waterproof mortar, internal and external wall interface mortar, ceramic tile mortar, grouting mortar and special waterproof mortar for construction of industrial and civil building engineering and the like.
Example 3
The invention discloses a method for preparing dry-mixed mortar by replacing natural sand with industrial waste nickel slag, which comprises the following steps: after industrial waste residue nickel slag discharged by nickel product production enterprises is mechanically sieved by a 120-mesh sieve, the moisture content of the industrial waste residue nickel slag is controlled within 0.5 percent, 100 parts of the obtained nickel slag product by weight is uniformly stirred and mixed with 25 parts of 425 ordinary cement by weight, and then the dry-mixed mortar is obtained.
In the invention, the use level of the dry-mixed mortar produced by using the industrial waste residue nickel slag to replace natural sand is 100 percent. Through determination, the dry-mixed mortar has the following quality technical indexes: setting time 203 minutes; the bonding strength is 1.0 mpa; the water retention rate is 106.5 percent; frost resistance 16.5%; the dry shrinkage rate is 0.05 percent in 28 days; the flexural strength of 3 days and 28 days is 4.1mpa and 7.6mpa respectively; the compressive strength of the concrete is 22.2mpa and 55.3mpa in 3 days and 28 days respectively. Therefore, the product of the invention can be widely used in plastering mortar, ground mortar, waterproof mortar, internal and external wall interface mortar, ceramic tile mortar, grouting mortar and special waterproof mortar for construction of industrial and civil building engineering and the like.
The dry-mixed mortar product is produced by replacing natural sand with the industrial waste residue nickel slag, the prepared dry-mixed mortar not only has an excellent hydration activity function, but also 100% replaces natural sand resources such as river sand and mine mining sand to prepare the dry-mixed mortar, the quality of the dry-mixed mortar product exceeds that of the dry-mixed mortar product prepared by dry-mixing natural sand, a technical method which is not disclosed at home and abroad at present is provided for using a large amount of industrial waste residue nickel slag, 100% of natural sand resources are saved, the expenses of land stacking, land filling and the like are saved, the production cost is saved, the pollution to the ecological environment is reduced, a preferred scheme is provided for recycling the industrial waste residue nickel slag comprehensively, and the dry-mixed mortar product has a good market.
Claims (6)
1. A method for preparing dry-mixed mortar by using industrial waste nickel slag to replace natural sand is characterized by comprising the following steps: after industrial waste residue nickel slag discharged by nickel product production enterprises is mechanically screened, the waste residue nickel slag and 425 ordinary cement are stirred and mixed uniformly to obtain a mortar product, namely dry-mixed mortar.
2. The method for preparing the dry-mixed mortar by using the industrial waste nickel slag to replace the natural sand according to claim 1, which is characterized by comprising the following steps: 80-100 parts of waste residue nickel slag by weight; 425 parts of ordinary cement by weight portion is 10-25 parts.
3. The method for preparing the dry-mixed mortar by using the industrial waste nickel slag to replace the natural sand according to claim 1, which is characterized by comprising the following steps: the industrial waste residue nickel slag needs to be mechanically sieved by a 120-mesh sieve, and the water content of the waste residue nickel slag is less than 0.5 percent.
4. The method for preparing the dry-mixed mortar by using the industrial waste nickel slag to replace the natural sand according to claim 1, which is characterized by comprising the following steps: the quality technical indexes of the dry-mixed mortar are as follows: the coagulation time is not less than 120 minutes; the bonding strength is more than 0.4 mpa; the water retention rate is more than 95 percent; the frost resistance is less than 21 percent; the shrinkage rate is less than 0.13% in 28 days; the flexural strength of 3 days and 28 days is 2.5-4.0mpa and 5.0-7.5mpa respectively; the compressive strength of 3 days and 28 days is 7.0-26.0mpa and 20.0-55.0mpa respectively.
5. The method for preparing the dry-mixed mortar by using the industrial waste nickel slag to replace the natural sand according to claim 1, which is characterized by comprising the following steps: the industrial waste residue nickel slag can replace natural sand by 100 percent and is used for producing dry-mixed mortar.
6. A method for using the dry-mixed mortar of claims 1 to 3 in plastering mortar, floor mortar, waterproof mortar, interior and exterior wall interface mortar, tile mortar, grouting mortar, and special waterproof mortar for industrial and civil engineering construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010369768.1A CN111454022A (en) | 2020-05-06 | 2020-05-06 | Method for preparing dry-mixed mortar by replacing natural sand with industrial waste residue nickel slag |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010369768.1A CN111454022A (en) | 2020-05-06 | 2020-05-06 | Method for preparing dry-mixed mortar by replacing natural sand with industrial waste residue nickel slag |
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| CN111454022A true CN111454022A (en) | 2020-07-28 |
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| CN202010369768.1A Pending CN111454022A (en) | 2020-05-06 | 2020-05-06 | Method for preparing dry-mixed mortar by replacing natural sand with industrial waste residue nickel slag |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113233843A (en) * | 2021-06-08 | 2021-08-10 | 哈尔滨工业大学 | Mortar material with high freezing resistance and high corrosion resistance and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5027656B1 (en) * | 1970-11-12 | 1975-09-09 | ||
| CN105819800A (en) * | 2016-03-15 | 2016-08-03 | 盐城工学院 | Cement base self-leveling mortar prepared from nickel slag for preparing grounds and preparation method thereof |
| CN107915449A (en) * | 2017-12-14 | 2018-04-17 | 盐城工学院 | A kind of dry-mixed masonry mortar and preparation method thereof |
| CN109503086A (en) * | 2018-12-29 | 2019-03-22 | 江苏洋河新城新材料有限责任公司 | A kind of wet mixing mortar using nickel sand and ardealite |
| CN110357516A (en) * | 2019-06-11 | 2019-10-22 | 江苏洋河新城新材料有限责任公司 | A kind of waterproof polymer mortar and preparation method thereof |
-
2020
- 2020-05-06 CN CN202010369768.1A patent/CN111454022A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5027656B1 (en) * | 1970-11-12 | 1975-09-09 | ||
| CN105819800A (en) * | 2016-03-15 | 2016-08-03 | 盐城工学院 | Cement base self-leveling mortar prepared from nickel slag for preparing grounds and preparation method thereof |
| CN107915449A (en) * | 2017-12-14 | 2018-04-17 | 盐城工学院 | A kind of dry-mixed masonry mortar and preparation method thereof |
| CN109503086A (en) * | 2018-12-29 | 2019-03-22 | 江苏洋河新城新材料有限责任公司 | A kind of wet mixing mortar using nickel sand and ardealite |
| CN110357516A (en) * | 2019-06-11 | 2019-10-22 | 江苏洋河新城新材料有限责任公司 | A kind of waterproof polymer mortar and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 中国建材检验认证集团股份有限公司等: "《水泥物理性能检验技术》", 30 November 2017, 中国建材工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113233843A (en) * | 2021-06-08 | 2021-08-10 | 哈尔滨工业大学 | Mortar material with high freezing resistance and high corrosion resistance and preparation method thereof |
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Application publication date: 20200728 |
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