CN114873954A - Method for preparing baking-free brick from saline-alkali soil - Google Patents
Method for preparing baking-free brick from saline-alkali soil Download PDFInfo
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- CN114873954A CN114873954A CN202111513283.6A CN202111513283A CN114873954A CN 114873954 A CN114873954 A CN 114873954A CN 202111513283 A CN202111513283 A CN 202111513283A CN 114873954 A CN114873954 A CN 114873954A
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- saline
- alkali soil
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- per mill
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- 239000002689 soil Substances 0.000 title claims abstract description 80
- 239000003513 alkali Substances 0.000 title claims abstract description 73
- 239000011449 brick Substances 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000000843 powder Substances 0.000 claims abstract description 19
- 239000004568 cement Substances 0.000 claims abstract description 18
- 239000004575 stone Substances 0.000 claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000007787 solid Substances 0.000 claims abstract description 6
- 238000002360 preparation method Methods 0.000 claims description 22
- 238000002156 mixing Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 18
- 239000002245 particle Substances 0.000 claims description 12
- 238000007873 sieving Methods 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 230000006978 adaptation Effects 0.000 abstract 1
- 238000010304 firing Methods 0.000 abstract 1
- 230000009471 action Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/26—Carbonates
- C04B14/28—Carbonates of calcium
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/36—Inorganic materials not provided for in groups C04B14/022 and C04B14/04 - C04B14/34
- C04B14/361—Soil, e.g. laterite
-
- 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)
- Inorganic Chemistry (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing Of Solid Wastes (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a method for preparing baking-free bricks from saline-alkali soil, which comprises the following steps: the dosage of the formula is as follows: adding amount of the curing agent: the common addition amount of standard bricks is 1.6-2 per mill, the common addition amount of hollow building blocks is 2 per mill, the addition amounts of pavement bricks and slope protection bricks are 2 per mill, the addition amount of pavement paving is 2 per mill, the water-solid mass ratio is 0.1-0.12, and the cement addition amount is as follows: 5-8%, adding amount of stone powder: 5-8%, saline-alkali soil content: 45 to 90 percent. By adding a proper amount of water, curing agent, cement and stone powder, the invention realizes the resource utilization of saline-alkali soil, saves resources, protects ecological environment, has higher strength of finished bricks, simple and efficient manufacturing process flow and low required labor cost, thereby having the advantage of baking-free bricks, and solving the problems of complex manufacturing process of the traditional baked bricks, large resource waste and serious environmental pollution caused by the need of firing, lower strength of the finished bricks and difficult adaptation to complex environment.
Description
Technical Field
The invention relates to the technical field of preparation of saline-alkali soil bricks, in particular to a method for preparing a baking-free brick from saline-alkali soil.
Background
Saline-alkali soil is an important land resource in China, the development and utilization of the saline-alkali soil are concerned by people, the brick making of the saline-alkali soil avoids the complex process of conditioning and modifying by adopting chemical, microorganism and other modes, and the prepared finished brick has high strength and no pollution. The traditional baked brick has complex manufacturing process, needs to be fired, causes a large amount of resource waste and serious environmental pollution, has low strength of a finished brick, and is difficult to adapt to complex environment.
Disclosure of Invention
In order to solve the problems in the background art, the invention aims to provide a method for preparing a baking-free brick from saline-alkali soil, which has the advantages of the baking-free brick and solves the problems that the traditional baked brick is complex in manufacturing process, needs to be fired, causes a large amount of resource waste and serious environmental pollution, and is low in strength of a finished brick and difficult to adapt to a complex environment.
In order to achieve the purpose, the invention provides the following technical scheme: a method for preparing baking-free bricks from saline-alkali soil comprises
The dosage of the formula is as follows:
adding amount of the curing agent: the common addition amount of the standard bricks is 1.6-2 per mill, the common addition amount of the hollow building blocks is 2 per mill, the addition amounts of the pavement bricks and the slope protection bricks are 2 per mill, and the pavement paving addition amount is 2 per mill;
the water-solid mass ratio is 0.1-0.12, and the cement addition amount is as follows: 5-8%, adding amount of stone powder: 5-8%, saline-alkali soil content: 45 to 90 percent.
The method comprises the following steps:
the preparation scheme is as follows: 1) sieving the saline-alkali soil, and taking saline-alkali soil particles with the particle size of 0.5-1 mm;
2) mixing and stirring the sieved saline-alkali soil, curing agent and water for 2min according to a certain proportion to prepare a primary saline-alkali soil material;
3) adding cement and stone powder as required, and mixing with the primary material of the saline-alkali soil;
4) the solidified soil enters a brick making machine storage bin and is automatically distributed;
5) extruding and molding at 300kN pressure by using a hydraulic universal tester;
6) the finished bricks are automatically pushed out and mechanically and automatically stacked;
7) and maintaining for 28d under natural conditions.
As the optimization of the invention, the preparation scheme can be used for performing extraction detection on the finished product brick after the finished product brick is cured and molded, the compressive strength of the brick prepared by only using cement, soil and a curing agent is 15-20MPa, the daily use can be met, and the strength can be improved to 40MPa after stone powder is added, so that the preparation method can be suitable for more complex scenes.
According to the preparation scheme, a multifunctional horizontal roller stirrer can be adopted for stirring in the mixing process, the stirring and mixing efficiency is high, the discharging speed is high, and the subsequent processing is convenient.
Preferably, according to the preparation scheme, when the saline-alkali soil is sieved, a roller sand sieving machine can be used for sieving, the sieving speed is high, and meanwhile, part of large saline-alkali soil can be crushed.
Preferably, in the preparation scheme, when the mixture of the curing agent and the water is added, a spraying machine can be used for spraying, so that the mixture can uniformly fall into the saline-alkali soil, and the mixing efficiency is improved.
As the preferable preparation scheme, when the cement, the stone powder and the saline-alkali soil primary material are mixed, the mixing time is 18-22min, and the phenomenon of water loss caused by overlong mixing time is avoided.
Preferably, in the preparation scheme, after the cement, stone powder and the saline-alkali soil initial material are mixed, the water content of the saline-alkali soil initial material is detected by a water content sensor, so that the water content of the saline-alkali soil initial material is 15%, and the water content can be gradually increased according to 40ml until the water content is 15%.
Preferably, according to the preparation scheme, before the saline-alkali soil is sieved, the saline-alkali soil needs to be fully dried in the sun to reduce original particles, and meanwhile, the sieving efficiency and the crushing efficiency can be improved.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention realizes the resource utilization of saline-alkali soil, saves resources, protects ecological environment, increases the strength along with the passage of time, is not influenced by freezing, pH value and high temperature, has higher strength of finished bricks, can effectively wrap heavy metals by environment-friendly curing agent, prevents secondary pollution, thoroughly solves the problem of frost resistance and solubility of bricks, has no limitation on raw materials, can widely adopt saline-alkali soil, sludge, treated domestic garbage, sand, tailing powder and other various industrial solid waste wastes, has wide application, simple and convenient operation, simple and efficient manufacturing process flow and low required labor cost, thereby having the advantages of baking-free bricks, solving the problems of complex manufacturing process of the traditional sintered bricks, causing a large amount of resource waste and serious environmental pollution due to the fact that the traditional sintered bricks need to be fired, and having lower strength of the finished bricks, difficult to adapt to the complex environment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows: a method for preparing baking-free bricks from saline-alkali soil comprises
The dosage of the formula is as follows:
adding amount of a curing agent: the common addition amount of the standard brick is 1.6 per mill, the common addition amount of the hollow building block is 2 per mill, the addition amounts of the pavement brick and the slope protection brick are 2 per mill, and the addition amount of pavement paving is 2 per mill;
the water-solid mass ratio is 0.11, and the cement addition amount is as follows: 5 percent, adding amount of stone powder: 5%, saline-alkali soil content: 45 percent.
The method comprises the following steps:
the preparation scheme is as follows: 1) sieving the saline-alkali soil, and taking saline-alkali soil particles with the particle size of 0.5 mm;
2) mixing and stirring the sieved saline-alkali soil, curing agent and water for 2min according to a certain proportion to prepare a primary saline-alkali soil material;
3) adding cement and stone powder as required, and mixing with the primary material of the saline-alkali soil;
4) the solidified soil enters a brick making machine storage bin and is automatically distributed;
5) extruding and molding at 300kN pressure by using a hydraulic universal tester;
6) the finished bricks are automatically pushed out and mechanically and automatically stacked;
7) and maintaining for 28d under natural conditions.
Example two: a method for preparing baking-free bricks from saline-alkali soil comprises
The dosage of the formula is as follows:
adding amount of the curing agent: the common addition amount of standard bricks is 1.8 per mill, the common addition amount of hollow building blocks is 2 per mill, the addition amounts of pavement bricks and slope protection bricks are 2 per mill, and the addition amount of pavement paving is 2 per mill;
the water-solid mass ratio is 0.12, and the cement addition amount is as follows: 6.5 percent, and the adding amount of stone powder: 6.5 percent, saline-alkali soil content: 65 percent.
The method comprises the following steps:
the preparation scheme is as follows: 1) sieving the saline-alkali soil, and taking saline-alkali soil particles with the particle size of 0.7 mm;
2) mixing and stirring the sieved saline-alkali soil, curing agent and water for 2min according to a certain proportion to prepare a primary saline-alkali soil material;
3) adding cement and stone powder as required, and mixing with the primary material of the saline-alkali soil;
4) the solidified soil enters a brick making machine storage bin and is automatically distributed;
5) extruding and molding at 300kN pressure by using a hydraulic universal tester;
6) the finished bricks are automatically pushed out and mechanically and automatically stacked;
7) and maintaining for 28d under natural conditions.
Example three: a method for preparing baking-free bricks from saline-alkali soil comprises
The dosage of the formula is as follows:
adding amount of the curing agent: the common addition amount of the standard bricks is 2 per mill, the common addition amount of the hollow building blocks is 2 per mill, the addition amounts of the pavement bricks and the slope protection bricks are 2 per mill, and the addition amount of pavement paving is 2 per mill;
the water-solid mass ratio is 0.1-0.12, and the cement addition amount is as follows: 8 percent, adding amount of stone powder: 8%, saline-alkali soil content: 90 percent.
The method comprises the following steps:
the preparation scheme is as follows: 1) sieving the saline-alkali soil, and taking saline-alkali soil particles with the particle size of 1 mm;
2) mixing and stirring the sieved saline-alkali soil, curing agent and water for 2min according to a certain proportion to prepare a primary saline-alkali soil material;
3) adding cement and stone powder as required, and mixing with the primary material of the saline-alkali soil;
4) the solidified soil enters a brick making machine storage bin and is automatically distributed;
5) extruding and molding at the pressure of 300kN by using a hydraulic universal tester;
6) the finished bricks are automatically pushed out and mechanically and automatically stacked;
7) and maintaining for 28d under natural conditions.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A method for preparing baking-free bricks from saline-alkali soil is characterized by comprising the following steps: comprises that
The dosage of the formula is as follows:
adding amount of the curing agent: the common addition amount of the standard bricks is 1.6-2 per mill, the common addition amount of the hollow building blocks is 2 per mill, the addition amounts of the pavement bricks and the slope protection bricks are 2 per mill, and the pavement paving addition amount is 2 per mill;
the water-solid mass ratio is 0.1-0.12, and the cement addition amount is as follows: 5-8%, adding amount of stone powder: 5-8%, saline-alkali soil content: 45 to 90 percent.
The method comprises the following steps:
the preparation scheme is as follows: 1) sieving the saline-alkali soil, and taking saline-alkali soil particles with the particle size of 0.5-1 mm;
2) mixing and stirring the sieved saline-alkali soil, curing agent and water according to a certain proportion for 2min to prepare a saline-alkali soil primary material;
3) adding cement and stone powder as required, and mixing with the primary material of the saline-alkali soil;
4) the solidified soil enters a brick making machine storage bin and is automatically distributed;
5) extruding and molding at 300kN pressure by using a hydraulic universal tester;
6) the finished bricks are automatically pushed out and mechanically and automatically stacked;
7) and maintaining for 28d under natural conditions.
2. The method for preparing baking-free bricks from saline-alkali soil according to claim 1, wherein the method comprises the following steps: according to the preparation scheme, after the finished product brick is cured and molded, the finished product brick can be subjected to extraction and adjustment detection, the compressive strength of the brick prepared by only using cement, soil and a curing agent is 15-20MPa, the daily use can be met, and the strength can be improved to 40MPa after stone powder is added, so that the preparation method is suitable for more complex scenes.
3. The method for preparing baking-free bricks from saline-alkali soil according to claim 1, wherein the method comprises the following steps: according to the preparation scheme, in the mixing process, a multifunctional horizontal roller mixer can be used for stirring, the stirring and mixing efficiency is high, the discharging speed is high, and the subsequent processing is convenient.
4. The method for preparing baking-free bricks from saline-alkali soil according to claim 1, characterized by comprising the following steps: the preparation scheme can adopt the drum sand sieving machine to sieve when saline-alkali soil sieves, sieves fastly, can smash the great saline-alkali soil of part simultaneously.
5. The method for preparing baking-free bricks from saline-alkali soil according to claim 1, wherein the method comprises the following steps: according to the preparation scheme, when the mixture of the curing agent and water is added, a spraying machine can be adopted for spraying, so that the mixture can uniformly fall into the saline-alkali soil, and the mixing efficiency is improved.
6. The method for preparing baking-free bricks from saline-alkali soil according to claim 1, wherein the method comprises the following steps: according to the preparation scheme, when cement, stone powder and the primary material of the saline-alkali soil are mixed, the mixing time is 18-22min, and the phenomenon of water loss caused by overlong mixing time is avoided.
7. The method for preparing baking-free bricks from saline-alkali soil according to claim 1, wherein the method comprises the following steps: according to the preparation scheme, after cement, stone powder and the primary saline-alkali soil material are mixed, the primary saline-alkali soil material can be detected through the moisture sensor, so that the moisture content of the primary saline-alkali soil material is 15%, and the moisture content can be gradually increased according to 40ml until the moisture content is 15%.
8. The method for preparing baking-free bricks from saline-alkali soil according to claim 1, wherein the method comprises the following steps: according to the preparation scheme, before the saline-alkali soil is sieved, the saline-alkali soil needs to be fully dried, original particles are reduced, and meanwhile, the sieving and crushing efficiency can be improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111513283.6A CN114873954A (en) | 2021-12-12 | 2021-12-12 | Method for preparing baking-free brick from saline-alkali soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111513283.6A CN114873954A (en) | 2021-12-12 | 2021-12-12 | Method for preparing baking-free brick from saline-alkali soil |
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| Publication Number | Publication Date |
|---|---|
| CN114873954A true CN114873954A (en) | 2022-08-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111513283.6A Pending CN114873954A (en) | 2021-12-12 | 2021-12-12 | Method for preparing baking-free brick from saline-alkali soil |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000281424A (en) * | 1999-03-30 | 2000-10-10 | Rivall:Kk | Lightweight nonburned tile |
| CN107117892A (en) * | 2017-03-24 | 2017-09-01 | 广东省建筑科学研究院集团股份有限公司 | The non-burning brick and its preparation technology that a kind of large dosage is prepared using remaining body refuse soil |
| CN111018444A (en) * | 2019-12-27 | 2020-04-17 | 山东易路建通环保新技术有限公司 | Baking-free brick manufactured by adopting Xinjiang saline-alkali soil and manufacturing method thereof |
| CN111574131A (en) * | 2020-06-12 | 2020-08-25 | 北京土木禾天环保科技有限公司 | Baking-free brick for recycling saline-alkali soil by using soil curing agent and preparation method thereof |
| CN113149503A (en) * | 2020-01-07 | 2021-07-23 | 广州堃石环保技术有限公司 | Baking-free brick curing agent formula and baking-free brick preparation method |
-
2021
- 2021-12-12 CN CN202111513283.6A patent/CN114873954A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000281424A (en) * | 1999-03-30 | 2000-10-10 | Rivall:Kk | Lightweight nonburned tile |
| CN107117892A (en) * | 2017-03-24 | 2017-09-01 | 广东省建筑科学研究院集团股份有限公司 | The non-burning brick and its preparation technology that a kind of large dosage is prepared using remaining body refuse soil |
| CN111018444A (en) * | 2019-12-27 | 2020-04-17 | 山东易路建通环保新技术有限公司 | Baking-free brick manufactured by adopting Xinjiang saline-alkali soil and manufacturing method thereof |
| CN113149503A (en) * | 2020-01-07 | 2021-07-23 | 广州堃石环保技术有限公司 | Baking-free brick curing agent formula and baking-free brick preparation method |
| CN111574131A (en) * | 2020-06-12 | 2020-08-25 | 北京土木禾天环保科技有限公司 | Baking-free brick for recycling saline-alkali soil by using soil curing agent and preparation method thereof |
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Application publication date: 20220809 |