CN113024203B - Baking-free brick with fissure clay as main raw material and preparation method thereof - Google Patents
Baking-free brick with fissure clay as main raw material and preparation method thereof Download PDFInfo
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- CN113024203B CN113024203B CN202110278853.1A CN202110278853A CN113024203B CN 113024203 B CN113024203 B CN 113024203B CN 202110278853 A CN202110278853 A CN 202110278853A CN 113024203 B CN113024203 B CN 113024203B
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- free brick
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Classifications
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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
- 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
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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
- 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
- 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
Abstract
The invention discloses a baking-free brick taking fissure clay as a main raw material and a preparation method thereof, wherein the baking-free brick comprises the following raw materials in parts by weight: 50-70 parts of fracture clay, 30-40 parts of amphibole, 10-20 parts of Portland cement, 0.5-1 part of isopropanolamine, 1-2 parts of lithium hydroxide, 5-10 parts of quick lime and 3-5 parts of p-toluenesulfonamide. The crack clay is used as a main raw material, and the amphibole, the portland cement, the isopropanolamine, the lithium hydroxide, the quicklime and the p-toluenesulfonamide are used as auxiliary materials, so that the prepared baking-free brick has the advantages of high compactness, high compressive strength and flexural strength, good water resistance, low shrinkage rate and the like, and the production process is simple, low in cost and beneficial to industrial popularization. The detection result shows that the baking-free brick has the compressive strength of over 25MPa, the breaking strength of over 4MPa, the softening coefficient of over 0.95 and the drying shrinkage of less than or equal to 0.045, and good performance, and can be used as a novel baking-free brick to be applied to building engineering.
Description
Technical Field
The invention relates to a baking-free brick taking fissure clay as a main raw material and a preparation method thereof, belonging to the technical field of building materials.
Background
The fissure clay is a special clay with very developed fissures, and is widely distributed in south and west parts of the river, particularly in mountainous areas and hilly ridge hills. The fissure clay contains more clay grains, mineral components mainly including illite and quartz, and montmorillonite, and chemical components mainly including silicon, aluminum and iron. The fracture clay is generally in a hard or hard plastic state under natural conditions, and has the advantages of higher density, small water content, higher clay content and better cementation, thereby having higher strength and lower compressibility. The fissure clay has a special structure-fissure structure which is not possessed by common clay, and the geological characteristics of the fissure clay are different from those of common clay, and if the fissure clay absorbs water, the fissure clay can swell and soften, so that the soil body structure is damaged to cause cracking, and the strength is seriously influenced, therefore, the application of the fissure clay in the building engineering is greatly restricted by the special properties of the fissure clay.
The baking-free brick is also called non-sintered brick or novel wall brick, and has become a novel substitute material of the sintered brick due to the advantages of high compactness, good water absorption, good durability, high strength and the like, and the product quality and the comprehensive performance equivalent to those of the sintered brick. Compared with the sintered brick, the baking-free brick also has the following advantages: (1) saving land resources and utilizing waste. The baking-free brick mostly takes industrial waste residues as raw materials, does not need to use good soil, can protect cultivated land, and can greatly utilize the industrial waste residues. (2) Saving energy consumption and protecting environment. The baking-free brick does not need sintering and steam curing, greatly reduces the use of fire coal in the production process of the sintered brick, and has good social and economic benefits. (3) Simple process, labor and material conservation and production cost reduction.
At present, no report related to the production of the baking-free brick by taking the fracture clay as the main raw material exists, so that the preparation of the baking-free brick by taking the fracture clay as the main raw material is a new way for improving the utilization rate of the fracture clay and reducing the production cost of the baking-free brick.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a baking-free brick taking fracture clay as a main raw material and a preparation method thereof.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a baking-free brick taking fissure clay as a main raw material comprises the following raw materials in parts by weight: 50-70 parts of fracture clay, 30-40 parts of amphibole, 10-20 parts of Portland cement, 0.5-1 part of isopropanolamine, 1-2 parts of lithium hydroxide, 5-10 parts of quick lime and 3-5 parts of p-toluenesulfonamide.
The main chemical component of the fissure clay is SiO2 60.3-70.8％、Al2O3 13.1-18.3％、Fe2O3 5.4-6.8％、CaO 0.5-0.9％、MgO 0.5-1.2％、K2O 2.2-3.7％、NaO 0.8-1.5％。
A preparation method of a baking-free brick taking fissure clay as a main raw material comprises the following steps:
(1) weighing the raw materials in parts by weight;
(2) crushing fracture clay and amphibole;
(3) uniformly mixing the crushed fractured clay and amphibole with other raw materials;
(4) ball milling the mixed raw materials;
(5) adding water and stirring uniformly;
(6) pressing and forming, and aging at room temperature to obtain a primary blank;
(7) and maintaining the primary blank to obtain the finished product.
The granularity of the crushed fractured clay and amphibole is less than 8 mm.
The water addition amount is 5-10% of the weight of the mixed raw materials.
The pressing pressure is 10-15MPa, and the pressure maintaining time is more than or equal to 10 s.
The aging time is more than or equal to 12 h.
And the maintenance is carried out for 28 days under natural conditions.
The invention has the beneficial effects that:
1. the invention takes the fracture clay as the main raw material to prepare the baking-free brick, greatly improves the resource utilization rate of the fracture clay, and opens up a new application approach of the fracture clay.
2. The invention takes the fissure clay as the main raw material, takes the amphibole, the silicate cement, the isopropanolamine, the lithium hydroxide, the quicklime and the p-toluenesulfonamide as the auxiliary materials, and adopts the raw materials with specific proportion, so that the prepared baking-free brick has the advantages of high compactness, high compressive strength and flexural strength, good water resistance, low shrinkage rate and the like. The flash feldspar serves as the aggregate of the baking-free brick, the portland cement and the quick lime can serve as gelling agents to improve the strength and the stability of the baking-free brick, the lithium hydroxide can assist the cement and the quick lime to improve the gluing effect, the structural stability of the baking-free brick is guaranteed, the strength of the brick body is improved, cracks or fractures are not prone to generating, the isopropanolamine and the p-toluenesulfonamide cooperate, the strength of the brick body can be further improved, and the water resistance of the brick body is improved.
3. The invention controls the grain diameter of the crack clay and the flash feldspar to be less than 8mm, can reduce the porosity among grains, increases the compactness and improves the strength of the brick body. According to the invention, the specific raw materials are mixed, and a proper amount of water is added, so that the forming of the brick body and the improvement of the strength are facilitated, the mixed raw materials and the water are fully mixed, the pores among particles can be further filled, the brick body is prevented from cracking or breaking in the subsequent working procedures, and the product quality of the baking-free brick is effectively ensured.
4. The test result shows that the compression strength of the baking-free brick can reach more than 25MPa, the breaking strength can reach more than 4MPa, the softening coefficient is more than or equal to 0.95, the drying shrinkage rate is less than or equal to 0.045%, the performance is good, the production process is simple, the cost is low, the baking-free brick can be used as a novel baking-free brick to be applied to building engineering, and the baking-free brick has good social and economic benefits.
Detailed Description
The following examples further illustrate the embodiments of the present invention in detail.
The fracture clay used in the invention has the main chemical component of SiO2 60.3-70.8％、Al2O3 13.1-18.3％、Fe2O3 5.4-6.8％、CaO 0.5-0.9％、MgO 0.5-1.2％、K2O 2.2-3.7％、NaO 0.8-1.5％。
Example 1
A baking-free brick taking fissure clay as a main raw material comprises the following raw materials in parts by weight: 60 parts of fracture clay, 35 parts of amphibole, 15 parts of Portland cement, 1 part of isopropanolamine, 1 part of lithium hydroxide, 8 parts of quicklime and 4 parts of p-toluenesulfonamide.
The preparation method of the baking-free brick comprises the following steps:
(1) weighing the raw materials in parts by weight;
(2) crushing fracture clay and amphibole to make the particle size less than 8 mm;
(3) uniformly mixing the crushed fractured clay and amphibole with other raw materials;
(4) ball milling the mixed raw materials;
(5) adding water, wherein the water addition amount is 8% of the weight of the mixed raw materials, and uniformly stirring;
(6) pressing and forming, and aging at room temperature for more than 12h to obtain a primary blank; the pressing pressure is 10MPa, and the pressure maintaining time is more than or equal to 10 s;
(7) and naturally curing the primary blank for 28 days to obtain the finished product.
Example 2
A baking-free brick taking fissure clay as a main raw material comprises the following raw materials in parts by weight: 50 parts of fracture clay, 30 parts of amphibole, 10 parts of Portland cement, 0.5 part of isopropanolamine, 1 part of lithium hydroxide, 5 parts of quicklime and 3 parts of p-toluenesulfonamide.
The preparation method of the baking-free brick comprises the following steps:
(1) weighing the raw materials in parts by weight;
(2) crushing fracture clay and amphibole to make the particle size less than 8 mm;
(3) uniformly mixing the crushed fractured clay and amphibole with other raw materials;
(4) ball milling the mixed raw materials;
(5) adding water, wherein the water addition amount is 10% of the weight of the mixed raw materials, and uniformly stirring;
(6) pressing and forming, and aging at room temperature for more than 12h to obtain a primary blank; the pressing pressure is 15MPa, and the pressure maintaining time is more than or equal to 10 s;
(7) and naturally curing the primary blank for 28 days to obtain the finished product.
Example 3
A baking-free brick taking fissure clay as a main raw material comprises the following raw materials in parts by weight: 70 parts of fracture clay, 40 parts of amphibole, 20 parts of Portland cement, 1 part of isopropanolamine, 2 parts of lithium hydroxide, 10 parts of quicklime and 5 parts of p-toluenesulfonamide.
The preparation method of the baking-free brick comprises the following steps:
(1) weighing the raw materials in parts by weight;
(2) crushing fracture clay and amphibole to make the particle size less than 8 mm;
(3) uniformly mixing the crushed fractured clay and amphibole with other raw materials;
(4) ball milling the mixed raw materials;
(5) adding water, wherein the water addition amount is 5% of the weight of the mixed raw materials, and uniformly stirring;
(6) pressing and forming, and aging at room temperature for more than 12h to obtain a primary blank; the pressing pressure is 12MPa, and the pressure maintaining time is more than or equal to 10 s;
(7) and naturally curing the primary blank for 28 days to obtain the finished product.
Comparative example
A baking-free brick comprises the following raw materials in parts by weight: 60 parts of fracture clay, 35 parts of amphibole, 15 parts of portland cement, 1 part of sodium hydroxide, 3 parts of zirconium oxide, 5 parts of calcium oxide, 2 parts of sodium chloride and 5 parts of quicklime.
(1) Weighing the raw materials in parts by weight;
(2) crushing fracture clay and amphibole to make the particle size less than 8 mm;
(3) uniformly mixing the crushed fractured clay and amphibole with other raw materials;
(4) ball milling the mixed raw materials;
(5) adding water, wherein the water addition amount is 8% of the weight of the mixed raw materials, and uniformly stirring;
(6) pressing and forming, and aging at room temperature for more than 12h to obtain a primary blank; the pressing pressure is 10MPa, and the pressure maintaining time is more than or equal to 10 s;
(7) and naturally curing the primary blank for 28 days to obtain the finished product.
The compressive strength, flexural strength, softening coefficient and drying shrinkage of the prepared baking-free bricks were measured on the 28 th day of curing, and the results are shown in the following table.
From the above table, compared with the baking-free brick of the comparative example, the invention uses the fracture clay as the main raw material and uses the amphibole, the portland cement, the isopropanolamine, the lithium hydroxide, the quicklime and the p-toluenesulfonamide as the auxiliary materials, and the prepared baking-free brick has the advantages of high compactness, high compressive strength and flexural strength, good water resistance, low shrinkage rate and the like, and can be used as a building material to be applied to building engineering.
Claims (7)
1. A baking-free brick taking fissure clay as a main raw material is characterized by comprising the following raw materials in parts by weight: 50-70 parts of fracture clay, 30-40 parts of amphibole, 10-20 parts of Portland cement, 0.5-1 part of isopropanolamine, 1-2 parts of lithium hydroxide, 5-10 parts of quick lime and 3-5 parts of p-toluenesulfonamide;
the main chemical component of the fissure clay is SiO2 60.3-70.8%、Al2O3 13.1-18.3%、Fe2O3 5.4-6.8%、CaO 0.5-0.9%、MgO 0.5-1.2%、K2O 2.2-3.7%、NaO 0.8-1.5%；
The preparation method comprises the following steps:
(1) weighing the raw materials in parts by weight;
(2) crushing fracture clay and amphibole;
(3) uniformly mixing the crushed fractured clay and amphibole with other raw materials;
(4) ball milling the mixed raw materials;
(5) adding water, and stirring uniformly;
(6) pressing and forming, and aging at room temperature to obtain a primary blank;
(7) and maintaining the primary blank to obtain the finished product.
2. The baking-free brick as claimed in claim 1, which is prepared from the following raw materials in parts by weight: 60 parts of fracture clay, 35 parts of amphibole, 15 parts of Portland cement, 1 part of isopropanolamine, 1 part of lithium hydroxide, 8 parts of quicklime and 4 parts of p-toluenesulfonamide.
3. A baking-free brick as claimed in claim 1 wherein the crushed fractured clay and amphibole have a particle size of < 8 mm.
4. The baking-free brick as claimed in claim 1, wherein the amount of water added is 5-10% by weight of the mixed raw materials.
5. The baking-free brick of claim 1, wherein the pressing pressure is 10-15MPa, and the dwell time is more than or equal to 10 s.
6. The baking-free brick as claimed in claim 1, wherein the aging time is not less than 12 h.
7. The baking-free brick as claimed in claim 1, wherein the curing is carried out for 28 days under natural conditions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110278853.1A CN113024203B (en) | 2021-03-16 | 2021-03-16 | Baking-free brick with fissure clay as main raw material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110278853.1A CN113024203B (en) | 2021-03-16 | 2021-03-16 | Baking-free brick with fissure clay as main raw material and preparation method thereof |
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| CN113024203A CN113024203A (en) | 2021-06-25 |
| CN113024203B true CN113024203B (en) | 2022-06-03 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063036A (en) * | 2006-11-20 | 2007-10-31 | 中国科学院地质与地球物理研究所 | Chemical modifying method for swelled ground treatment |
| CN106242487A (en) * | 2016-08-17 | 2016-12-21 | 明光市凯旋新型建材厂 | A kind of is raw-material non-burning brick with river sand |
| CN106272886A (en) * | 2016-08-17 | 2017-01-04 | 明光市凯旋新型建材厂 | The non-burning brick preparation method that a kind of building waste is made |
| CN107572928A (en) * | 2017-09-30 | 2018-01-12 | 武汉鹏森环境科技有限公司 | A kind of dirty mud environment protection type water-permeable brick and preparation method thereof |
| CN110002824A (en) * | 2019-05-07 | 2019-07-12 | 欧施林 | A kind of non-burning brick and its production method |
-
2021
- 2021-03-16 CN CN202110278853.1A patent/CN113024203B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063036A (en) * | 2006-11-20 | 2007-10-31 | 中国科学院地质与地球物理研究所 | Chemical modifying method for swelled ground treatment |
| CN106242487A (en) * | 2016-08-17 | 2016-12-21 | 明光市凯旋新型建材厂 | A kind of is raw-material non-burning brick with river sand |
| CN106272886A (en) * | 2016-08-17 | 2017-01-04 | 明光市凯旋新型建材厂 | The non-burning brick preparation method that a kind of building waste is made |
| CN107572928A (en) * | 2017-09-30 | 2018-01-12 | 武汉鹏森环境科技有限公司 | A kind of dirty mud environment protection type water-permeable brick and preparation method thereof |
| CN110002824A (en) * | 2019-05-07 | 2019-07-12 | 欧施林 | A kind of non-burning brick and its production method |
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| CN113024203A (en) | 2021-06-25 |
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