CN112441803A - Non-fired phosphogypsum type clay hollow brick for landscape greening - Google Patents

Non-fired phosphogypsum type clay hollow brick for landscape greening Download PDF

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Publication number
CN112441803A
CN112441803A CN202011345997.6A CN202011345997A CN112441803A CN 112441803 A CN112441803 A CN 112441803A CN 202011345997 A CN202011345997 A CN 202011345997A CN 112441803 A CN112441803 A CN 112441803A
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China
Prior art keywords
phosphogypsum
baking
hollow brick
free
type clay
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CN202011345997.6A
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Chinese (zh)
Inventor
陈祖拥
刘芳
刘元生
朱健
卜通达
杨丽
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Guizhou University
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Guizhou University
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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
    • C04B28/14—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 calcium sulfate cements
    • C04B28/142—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 calcium sulfate cements containing synthetic or waste calcium sulfate cements
    • C04B28/143—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 calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being phosphogypsum
    • 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
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/0003—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof containing continuous channels, e.g. of the "dead-end" type or obtained by pushing bars in the green ceramic product
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C1/00—Building elements of block or other shape for the construction of parts of buildings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C1/00—Building elements of block or other shape for the construction of parts of buildings
    • E04C1/39—Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra
    • E04C1/395—Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra for claustra, fences, planting walls, e.g. sound-absorbing
    • 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
    • C04B2111/00758—Uses not provided for elsewhere in C04B2111/00 for agri-, sylvi- or piscicultural or cattle-breeding applications
    • 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
    • C04B2111/40—Porous or lightweight 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The invention discloses a baking-free phosphogypsum type clay hollow brick for landscape greening, which is prepared from the following raw materials: 40-70% of clay, 10-40% of phosphogypsum powder, 15% of common cement, 3% of biochar particles, 1% of a high-molecular water absorbent and 1% of a cementing agent, wherein the shape of the baking-free phosphogypsum type hollow brick is one of a rectangle, a circle, a splayed shape and a rhombus shape, the rectangle and the circle of the baking-free phosphogypsum type hollow brick is an outer monomer, the splayed and the rhombus of the baking-free phosphogypsum type hollow brick is an inner monomer, the splayed and the rhombus of the baking-free phosphogypsum type hollow brick are provided with hollow holes on the upper end surface and the lower end surface, the rhombus of the baking-free phosphogypsum type hollow brick is provided with a hollow hole in the center, and four corners of the rectangle baking-free. The clay hollow brick has porosity up to 30%, and has the features of porous water maintaining, large plant growing space and good landscape greening effect.

Description

Non-fired phosphogypsum type clay hollow brick for landscape greening
Technical Field
The invention relates to the technical field of landscape greening, in particular to a baking-free phosphogypsum type clay hollow brick for landscape greening.
Background
The hollow brick is a main wall material commonly used in the construction industry in recent years, and has become a product recommended by national construction departments firstly due to the advantages of light weight, less consumption of raw materials and the like. The hollow bricks are made of cement hollow bricks, clay hollow bricks and shale hollow bricks, the clay hollow bricks are made of clay, shale and the like serving as main raw materials through raw material treatment, forming and sintering, generally speaking, the void ratio of the hollow bricks is more than 15%, and compared with solid bricks, the hollow bricks can save a large amount of soil for land and brick burning fuel, and reduce the transportation weight and the labor intensity during brick making and building; the self weight of the building is reduced, and the manufacturing cost is reduced. The hollow brick is suitable for non-bearing parts.
The brick is characterized by combining the characteristics of clay brick and phosphogypsum building block, belonging to the non-sintered porous clay brick, the material is similar to the clay hollow brick and the phosphogypsum small building block, conforming to the construction habit of brick masonry, and each physical, mechanical and masonry performance can have the condition of the hollow brick, can be used for most walls with non-bearing structures, and has wide popularization and application prospects.
The application of the baking-free phosphogypsum type hollow clay brick product is beneficial to reducing the production and use of clay bricks and improving the utilization rate of phosphogypsum building materialization, and has very important social and economic significance for improving the environment, protecting land resources, promoting the work of wall material innovation, building energy conservation and the like.
The present disclosure is directed to solving the above limitations of the current clay hollow blocks for greening.
Disclosure of Invention
The invention aims to solve the problems and provide a baking-free phosphogypsum type hollow clay brick for landscaping.
The invention realizes the purpose through the following technical scheme:
a baking-free phosphogypsum type clay hollow brick for landscape greening is prepared from the following raw materials: 40-70% of clay, 10-40% of phosphogypsum powder, 15% of common cement, 3% of biochar particles, 1% of high-molecular water absorbent and 1% of cementing agent.
As the best mode among them: the preparation method is characterized by comprising the following raw materials: 70% of clay, 10% of phosphogypsum powder, 15% of common cement, 3% of biochar particles, 1% of a high-molecular water absorbent and 1% of a cementing agent.
As one of the embodiments: the preparation method is characterized by comprising the following raw materials: 60% of clay, 20% of phosphogypsum powder, 15% of common cement, 3% of biochar particles, 1% of a high-molecular water absorbent and 1% of a cementing agent.
As one of the embodiments: the preparation method is characterized by comprising the following raw materials: 50% of clay, 30% of phosphogypsum powder, 15% of common cement, 3% of biochar particles, 1% of a high-molecular water absorbent and 1% of a cementing agent.
As one of the embodiments: the preparation method is characterized by comprising the following raw materials: 40% of clay, 40% of phosphogypsum powder, 15% of common cement, 3% of biochar particles, 1% of a high-molecular water absorbent and 1% of a cementing agent.
Wherein, the shape of the baking-free phosphogypsum type clay hollow brick is one of rectangle, circle, splayed shape and rhombus shape.
Wherein, the rectangular and round baking-free phosphogypsum type clay hollow brick is an outer monomer, and the splayed and rhombic baking-free phosphogypsum type clay hollow brick is an inner monomer.
Wherein, the splayed non-fired phosphogypsum type clay hollow brick is provided with hollow holes on the upper end surface and the lower end surface, the rhombic non-fired phosphogypsum type clay hollow brick is provided with a hollow hole in the center, and the four corners of the rectangular non-fired phosphogypsum type clay hollow brick are provided with hollow holes.
The invention has the following advantages:
1. each shape of hollow brick can be used independently, the rectangular baking-free phosphogypsum type clay hollow brick is provided with hollow holes at four corners, the splayed baking-free phosphogypsum type clay hollow brick is provided with hollow holes at the upper end surface and the lower end surface, the rhombic baking-free phosphogypsum type clay hollow brick is provided with a hollow hole at the center, and the hollow part can be filled with plant growth substrates to plant different types of flowers and herbaceous plants;
2. the rectangular baking-free phosphogypsum type clay hollow brick is mainly used as an outer frame structure, a splayed or rhombic inner monomer can be put in the rectangular baking-free phosphogypsum type clay hollow brick, and different landscape design patterns and colorful three-dimensional greening effects can be realized by adjusting the size of the hollow brick;
3. the porosity of the clay hollow brick reaches 30%, and the clay hollow brick has the characteristics of porous water retention, large plant growth space and good landscape greening effect.
Drawings
FIG. 1 is a schematic diagram of a rhombus shape of a baking-free phosphogypsum type clay hollow brick for landscape greening;
FIG. 2 is a schematic view of a rhombus inner monomer of the baking-free phosphogypsum type clay hollow brick for landscape greening, which is put into a rectangular outer monomer;
FIG. 3 is a schematic view of the splayed shape of the baking-free phosphogypsum type clay hollow brick for landscaping of the present invention;
FIG. 4 is a schematic view showing that the splayed inner monomer of the baking-free phosphogypsum type clay hollow brick for landscape greening is placed in the rectangular outer monomer.
Detailed Description
The present invention will be further described with reference to specific examples, but the present invention is not limited to these examples.
Example 1
As shown in fig. 1-2, a baking-free phosphogypsum type clay hollow brick for landscaping is prepared from the following raw materials: 50% of clay, 30% of phosphogypsum powder, 15% of common cement, 3% of biochar particles, 1% of a high-molecular water absorbent and 1% of a cementing agent.
The shape of the baking-free phosphogypsum type clay hollow brick is rectangular and rhombic, the rectangular baking-free phosphogypsum type clay hollow brick is an outer monomer, the rectangular baking-free phosphogypsum type clay hollow brick is provided with two hollow holes, the rhombic baking-free phosphogypsum type clay hollow brick is an inner monomer, the rhombic baking-free phosphogypsum type clay hollow brick is provided with a hollow hole in the center, the rhombic baking-free phosphogypsum type clay hollow brick is placed in the hollow hole of the rectangular baking-free phosphogypsum type clay hollow brick, and plant growth substrates can be filled into the hollow hole of the rhombic baking-free phosphogypsum type clay hollow brick to plant different types of flowers and herbaceous plants.
Example 2
As shown in fig. 3-4, a baking-free phosphogypsum type clay hollow brick for landscaping is prepared from the following raw materials: 50% of clay, 30% of phosphogypsum powder, 15% of common cement, 3% of biochar particles, 1% of a high-molecular water absorbent and 1% of a cementing agent.
The shape of the baking-free phosphogypsum type clay hollow brick is rectangular and splayed, the rectangular baking-free phosphogypsum type clay hollow brick is an outer monomer, the rectangular baking-free phosphogypsum type clay hollow brick is provided with two hollow holes, the splayed baking-free phosphogypsum type clay hollow brick is an inner monomer, the splayed baking-free phosphogypsum type clay hollow brick is provided with hollow holes on the upper end surface and the lower end surface, the splayed baking-free phosphogypsum type clay hollow brick is placed in the hollow holes of the rectangular baking-free phosphogypsum type clay hollow brick, and the splayed baking-free phosphogypsum type clay hollow brick can be filled with plant growth substrates in the hollow holes on the upper end surface and the lower end surface to plant different kinds of flowers and herbaceous plants.
Data relating to the experiment:
TABLE 1 mixture ratio and Main Properties
Figure BDA0002799933880000051
Test results show that the raw materials such as the clay, the phosphogypsum powder, the common cement, the biochar particles, the high-molecular water absorbent, the cementing agent and the like can be used for producing the baking-free clay brick with excellent mechanical property, the water content of the batch mixture is controlled to be about 15 percent, and the strength after 28 days can reach the 10MPa compressive strength standard of MU10 grade.
The compression strength of the baking-free phosphogypsum type clay brick taking cement as a main binder is in an ascending trend when the addition amount of the phosphogypsum is 20-30%, and the compression strength tends to be reduced when the phosphogypsum is continuously increased to 40%. In conclusion, the addition amount of the ardealite of the baking-free clay brick taking cement as a binder is 30 percent, and the baking-free clay brick combining 3 percent of biochar particles (2mm-5mm) is a porous product and has good water absorption performance. Therefore, the optimal mixing amount of the phosphogypsum is confirmed to be 30%, and in practical application, the fly ash can be used for replacing part of the charcoal powder, and the fly ash raw material can be mixed by not more than 3%.
The baking-free phosphogypsum type clay hollow brick is generally carried out under the natural curing condition due to the active SiO in the phosphogypsum2、Al2O3The cement in the baking-free hollow brick mainly plays a role in quickly hydrating in the early stage to endow the baking-free brick with early strength, and hydration products of the cement Ca (OH)2Can further promote the hydration of the phosphogypsum and improve the later strength and durability of the baking-free hollow brick. The phosphogypsum provides a certain amount of calcareous components for the clay hollow brick, can promote the hydration of cement, and can enable active Al in clay2O3The calcium aluminate can generate a certain amount of calcium aluminate with gypsum, the calcium aluminate provides early strength for cement, and can compensate the shrinkage of the cement and improve the early strength of the unfired clay hollow brick. The biochar particles mainly play a role of supporting a framework in the high-content phosphogypsum baking-free clay brick, increase the porosity of the brick and reduce the porosity of the brickAnd (4) weight. The composite cementing agent comprises triethanolamine, phenolic resin and other organic cementing materials, and has the effects of improving the strength of a primary blank, promoting gypsum crystallization, improving crystallization speed, increasing the number of crystals and the like, so that the proportion of solid phase is increased, and the effect of improving the compression strength of a test block is achieved.
The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims (8)

1. The baking-free phosphogypsum type clay hollow brick for landscape greening is characterized in that: the preparation method is characterized by comprising the following raw materials: 40-70% of clay, 10-40% of phosphogypsum powder, 15% of common cement, 3% of biochar particles, 1% of high-molecular water absorbent and 1% of cementing agent.
2. The baking-free phosphogypsum type clay hollow brick for landscaping as claimed in claim 1, which is characterized in that: the preparation method is characterized by comprising the following raw materials: 70% of clay, 10% of phosphogypsum powder, 15% of common cement, 3% of biochar particles, 1% of a high-molecular water absorbent and 1% of a cementing agent.
3. The baking-free phosphogypsum type clay hollow brick for landscaping as claimed in claim 1, which is characterized in that: the preparation method is characterized by comprising the following raw materials: 60% of clay, 20% of phosphogypsum powder, 15% of common cement, 3% of biochar particles, 1% of a high-molecular water absorbent and 1% of a cementing agent.
4. The baking-free phosphogypsum type clay hollow brick for landscaping as claimed in claim 1, which is characterized in that: the preparation method is characterized by comprising the following raw materials: 50% of clay, 30% of phosphogypsum powder, 15% of common cement, 3% of biochar particles, 1% of a high-molecular water absorbent and 1% of a cementing agent.
5. The baking-free phosphogypsum type clay hollow brick for landscaping as claimed in claim 1, which is characterized in that: the preparation method is characterized by comprising the following raw materials: 40% of clay, 40% of phosphogypsum powder, 15% of common cement, 3% of biochar particles, 1% of a high-molecular water absorbent and 1% of a cementing agent.
6. The baking-free phosphogypsum type clay hollow brick for landscaping according to any one of claims 1 to 5, which is characterized in that: the shape of the baking-free phosphogypsum type clay hollow brick is one of rectangle, circle, splayed and rhombus.
7. The baking-free phosphogypsum type clay hollow brick for landscaping according to claim 6, which is characterized in that: the rectangular and round baking-free phosphogypsum type clay hollow brick is an outer monomer, and the splayed and rhombic baking-free phosphogypsum type clay hollow brick is an inner monomer.
8. The baking-free phosphogypsum type clay hollow brick for landscaping according to claim 7, which is characterized in that: the splayed baking-free phosphogypsum type clay hollow brick is provided with hollow holes on the upper end surface and the lower end surface, the rhombic baking-free phosphogypsum type clay hollow brick is provided with a hollow hole in the center, and the four corners of the rectangular baking-free phosphogypsum type clay hollow brick are provided with the hollow holes.
CN202011345997.6A 2020-11-26 2020-11-26 Non-fired phosphogypsum type clay hollow brick for landscape greening Pending CN112441803A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1955141A (en) * 2005-10-28 2007-05-02 尹小林 Manufacturing high-strength water-proof fire braking-free brick by industrial subgypsum
CN111972253A (en) * 2020-08-18 2020-11-24 贵州大学 Porous carbon-based ecological brick for wall greening, and preparation method and application thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1955141A (en) * 2005-10-28 2007-05-02 尹小林 Manufacturing high-strength water-proof fire braking-free brick by industrial subgypsum
CN111972253A (en) * 2020-08-18 2020-11-24 贵州大学 Porous carbon-based ecological brick for wall greening, and preparation method and application thereof

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