CN110698217A - Processing technology of antibacterial aerated brick - Google Patents
Processing technology of antibacterial aerated brick Download PDFInfo
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- CN110698217A CN110698217A CN201911136278.0A CN201911136278A CN110698217A CN 110698217 A CN110698217 A CN 110698217A CN 201911136278 A CN201911136278 A CN 201911136278A CN 110698217 A CN110698217 A CN 110698217A
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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
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
- C04B40/024—Steam hardening, e.g. in an autoclave
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The application discloses a processing technology of an antibacterial aerated brick in the technical field of production of novel environment-friendly building materials, which comprises the following raw materials in parts by weight: 60-90 parts of fly ash, 10-20 parts of quick lime, 10-15 parts of cement, 5-15 parts of gypsum, 8-10 parts of aluminum powder paste, 5-10 parts of montmorillonite powder and 6-8 parts of traditional Chinese medicine residues, wherein the traditional Chinese medicine residues are one or more of coptis chinensis, scutellaria baicalensis, clove, anise or rhubarb, the content of the traditional Chinese medicines is more than 30, and the water-material ratio is 0.6-0.7. The montmorillonite powder and the traditional Chinese medicine residues are arranged inside the aerated brick, and the coating formed by the copper-containing aluminum phosphate and the silica gel is attached to the outside of the aerated brick, namely one inside and one outside, so that the antibacterial effect is better.
Description
Technical Field
The invention relates to the technical field of production of novel environment-friendly building materials, in particular to a processing technology of an antibacterial aerated brick.
Background
The aerated brick is a novel environment-friendly building material which is light, porous, heat-insulating, good in fireproof performance, nailable, sawable, planeable and has certain shock resistance; the composite material is widely applied and mainly used for wall materials, filler walls, floor slabs, roof slabs and other load-bearing wall materials, non-load-bearing materials and surrounding filler enclosing walls in mechanical plants and civil buildings. With the banning of the nation on the production of solid clay bricks, aerated bricks become the leading products in the building material industry. However, the aerated bricks in the prior art do not have the antibacterial function.
Disclosure of Invention
The invention aims to provide an antibacterial aerated brick to solve the problem that the aerated brick in the prior art does not have an antibacterial function.
The invention discloses an antibacterial aerated brick, which comprises the following raw materials in parts by weight: 60-90 parts of fly ash, 10-20 parts of quick lime, 10-15 parts of cement, 5-15 parts of gypsum, 8-10 parts of aluminum powder paste, 5-10 parts of montmorillonite powder and 6-8 parts of traditional Chinese medicine residues, wherein the traditional Chinese medicine residues are residues containing one or more traditional Chinese medicine components of coptis chinensis, scutellaria baicalensis, clove, anise or rhubarb, the content of the traditional Chinese medicine components in the traditional Chinese medicine residues is more than 30%, and the water-material ratio is 0.6-0.7.
Preferably, the raw materials and the parts by weight are as follows: 70-90 parts of fly ash, 15-20 parts of quick lime, 10-15 parts of cement, 10-15 parts of gypsum, 8-10 parts of aluminum powder paste, 8-10 parts of montmorillonite powder and 6-8 parts of traditional Chinese medicine residues.
Preferably, the raw materials and the parts by weight are as follows: 60-70 parts of fly ash, 10-15 parts of quick lime, 10-15 parts of cement, 5-10 parts of gypsum, 8-9 parts of aluminum powder paste, 5-8 parts of montmorillonite powder and 6-8 parts of traditional Chinese medicine residues.
The raw material also comprises copper-containing aluminum phosphate, and the weight part of the copper-containing aluminum phosphate is 10-15 parts.
The steel fiber-reinforced plastic composite material is characterized by also comprising 3-8 parts by weight of steel fibers.
The working principle and the beneficial effects of the invention are as follows: the invention takes fly ash, quicklime and cement as main raw materials, takes gypsum as an adjusting material, and is stirred with water according to a certain mixing proportion to form mixed slurry, then a gas former aluminum powder paste is added, so that the aluminum powder paste and the alkaline components in the slurry are subjected to chemical reaction to generate hydrogen, the slurry is expanded by gas formation to form uniform and fine pores, meanwhile, the traditional Chinese medicine residue and montmorillonite powder in the raw materials have antibacterial effect, especially polysaccharide and other components in the residue have good inhibition effect on some common bacteria, fungi and mould fungi, the added steel fiber can increase the toughness of the aerated brick, reduce the brittleness caused by the cement, increase the compressive strength of the aerated brick, and copper-containing aluminum phosphate also has the effect of inhibiting the mould when being added into the aerated brick, when the pre-curing is stopped, various materials are continuously subjected to a series of physical and chemical reactions, the slurry is thickened and hardened into a brick blank, after being cut into required size, the brick is sent into an autoclave to be cured by high-pressure saturated steam, so that the components in the green brick react with each other at a higher temperature to generate a series of hydration products, the products glue solid particles in concrete together to form a firm integral structure, and the brick has the antibacterial and bacteriostatic performances on the basis of sufficient toughness and tensile strength.
The invention also aims to provide a processing technology of the antibacterial aerated brick, which comprises the following steps:
1) preparing fly ash, quicklime, cement, gypsum, aluminum powder paste, montmorillonite powder, traditional Chinese medicine residues, steel fibers and copper-containing aluminum phosphate according to the proportion;
2) mixing coal ash, quicklime, cement, gypsum, montmorillonite powder and steel fiber, adding water, uniformly mixing, adding aluminum powder paste to obtain slurry,
3) injecting the stirred slurry into a mold, then placing the mold into a static curing chamber, sealing and insulating the mold at 55-60 ℃, keeping the static curing time for 1.8-2 hours, and then cutting the mold to obtain a green brick;
4) mixing aluminum phosphate containing copper and silica colloid to prepare a coating, spraying the coating on a green brick, and putting the green brick into a high-pressure autoclave for autoclave curing at the temperature of 100-130 ℃;
5) and after the steam curing is finished, removing the pressure of the green bricks in the still kettle, cooling and discharging the green bricks out of the still kettle to obtain the aerated bricks.
According to the aerated brick, the montmorillonite powder and the traditional Chinese medicine residues are arranged in the aerated brick, and the copper-containing aluminum phosphate and the silicon dioxide colloid form a coating which is attached to the outside of the aerated brick, namely one inside and one outside, so that the antibacterial effect is better.
Further, the steam curing time is 10-12 hours, and the steam curing pressure is 7-10 MPa.
Furthermore, the diameter of the steel fiber is 0.08-0.2 mm. The diameter has better matching effect with other raw materials of the aerated brick.
Detailed Description
The following is further detailed by way of specific embodiments:
embodiment 1, a processing technology of an antibacterial aerated brick, comprising the following steps:
1) weighing 70 parts of fly ash, 15 parts of quick lime, 10 parts of cement, 10 parts of gypsum, 9 parts of aluminum powder paste, 8 parts of montmorillonite powder, 6-8 parts of traditional Chinese medicine residues, 5 parts of steel fibers and 12 parts of copper-containing aluminum phosphate, wherein the traditional Chinese medicine residues contain coptis chinensis, scutellaria baicalensis and clove, the content of the three traditional Chinese medicine components in the residues is more than 30%, and the diameter of the steel fibers is 0.08-0.2 mm;
2) mixing coal ash, quicklime, cement, gypsum, montmorillonite powder and steel fiber, adding water, uniformly mixing, adding aluminum powder paste to obtain slurry,
3) injecting the stirred slurry into a mold, then placing the mold into a static curing chamber, sealing and insulating the mold at 55-60 ℃, keeping the static curing time for 1.8-2 hours, and then cutting the mold to obtain a green brick;
4) mixing aluminum phosphate containing copper and silica gel to prepare a coating, spraying the coating on a green brick, putting the green brick into a high-pressure autoclave for autoclave curing, wherein the autoclave curing temperature is 100-130 ℃, the autoclave curing time is 10-12 hours, and the autoclave curing pressure is 7-10 MPa;
5) and after the steam curing is finished, removing the pressure of the green bricks in the still kettle, cooling and discharging the green bricks out of the still kettle to obtain the aerated bricks.
Embodiment 2, a processing technology of an antibacterial aerated brick, comprising the following steps:
1) weighing 60 parts of fly ash, 10 parts of quicklime, 10 parts of cement, 5 parts of gypsum, 8 parts of aluminum powder paste, 5 parts of montmorillonite powder, 6-8 parts of traditional Chinese medicine residues, 3 parts of steel fibers and 10 parts of copper-containing aluminum phosphate, wherein the traditional Chinese medicine residues contain anise and rheum officinale, the content of the two traditional Chinese medicine components in the residues is more than 40%, and the diameter of the steel fibers is 0.08-0.2 mm;
2) mixing coal ash, quicklime, cement, gypsum, montmorillonite powder and steel fiber, adding water, uniformly mixing, adding aluminum powder paste to obtain slurry,
3) injecting the stirred slurry into a mold, then placing the mold into a static curing chamber, sealing and insulating the mold at 55-60 ℃, keeping the static curing time for 1.8-2 hours, and then cutting the mold to obtain a green brick;
4) mixing aluminum phosphate containing copper and silica gel to prepare a coating, spraying the coating on a green brick, putting the green brick into a high-pressure autoclave for autoclave curing, wherein the autoclave curing temperature is 100-130 ℃, the autoclave curing time is 10-12 hours, and the autoclave curing pressure is 7-10 MPa;
5) and after the steam curing is finished, removing the pressure of the green bricks in the still kettle, cooling and discharging the green bricks out of the still kettle to obtain the aerated bricks.
Embodiment 3, a processing technology of an antibacterial aerated brick, comprising the following steps:
1) weighing 80 parts of fly ash, 15 parts of quicklime, 15 parts of cement, 12 parts of gypsum, 9 parts of aluminum paste, 8 parts of montmorillonite powder, 6-8 parts of traditional Chinese medicine residues, 6 parts of steel fibers and 12 parts of copper-containing aluminum phosphate, wherein the traditional Chinese medicine residues contain coptis chinensis, scutellaria baicalensis and rheum officinale, the content of the three traditional Chinese medicine components in the residues is more than 30%, and the diameter of the steel fibers is 0.08-0.2 mm;
2) mixing coal ash, quicklime, cement, gypsum, montmorillonite powder and steel fiber, adding water, uniformly mixing, adding aluminum powder paste to obtain slurry,
3) injecting the stirred slurry into a mold, then placing the mold into a static curing chamber, sealing and insulating the mold at 55-60 ℃, keeping the static curing time for 1.8-2 hours, and then cutting the mold to obtain a green brick;
4) mixing aluminum phosphate containing copper and silica gel to prepare a coating, spraying the coating on a green brick, putting the green brick into a high-pressure autoclave for autoclave curing, wherein the autoclave curing temperature is 100-130 ℃, the autoclave curing time is 10-12 hours, and the autoclave curing pressure is 7-10 MPa;
5) and after the steam curing is finished, removing the pressure of the green bricks in the still kettle, cooling and discharging the green bricks out of the still kettle to obtain the aerated bricks.
Real-time example 4, a process for processing an antibacterial aerated brick, comprising the steps of:
1) weighing 90 parts of fly ash, 20 parts of quicklime, 15 parts of cement, 15 parts of gypsum, 10 parts of aluminum paste, 10 parts of montmorillonite powder, 6-8 parts of traditional Chinese medicine residues, 8 parts of steel fibers and 15 parts of copper-containing aluminum phosphate, wherein the traditional Chinese medicine residues contain rheum officinale, the content of the traditional Chinese medicine components in the residues is more than 30%, and the diameter of the steel fibers is 0.08-0.2 mm;
2) mixing coal ash, quicklime, cement, gypsum, montmorillonite powder and steel fiber, adding water, uniformly mixing, adding aluminum powder paste to obtain slurry,
3) injecting the stirred slurry into a mold, then placing the mold into a static curing chamber, sealing and insulating the mold at 55-60 ℃, keeping the static curing time for 1.8-2 hours, and then cutting the mold to obtain a green brick;
4) mixing aluminum phosphate containing copper and silica gel to prepare a coating, spraying the coating on a green brick, putting the green brick into a high-pressure autoclave for autoclave curing, wherein the autoclave curing temperature is 100-130 ℃, the autoclave curing time is 10-12 hours, and the autoclave curing pressure is 7-10 MPa;
5) and after the steam curing is finished, removing the pressure of the green bricks in the still kettle, cooling and discharging the green bricks out of the still kettle to obtain the aerated bricks.
Comparative example 1 differs from example 1 only in the absence of montmorillonite powder, herb residue and copper-containing aluminum phosphate.
Comparative example 2 differs from example 1 only in that no steel fibres are present.
The antibacterial aerated bricks obtained in examples 1 to 4 and comparative products are subjected to performance detection, and the specific detection method is as follows: the modified oscillating flask method is selected for testing, and the strains are selected from staphylococcus aureus, escherichia coli, candida albicans and mould which are most widely distributed on the skin of the human body and the nature. The test result is represented by the bacteriostatic rate and the bacteriostatic rate difference, and the calculation of the bacteriostatic rate and the bacteriostatic rate difference is respectively shown as the formula (1): y ═ Xa-Xb)/Xa · 100% (1) in the formula: y is the bacteriostatic rate,%; xa is the number of colonies before sample oscillation; xb is the number of colonies after shaking the sample. And the compressive strength of the test piece was tested.
Specific detection results are shown in table 1:
table 1 results of performance testing of antibacterial aerated bricks: the bacteriostatic rate and the compressive strength of examples 1-4 and comparative examples 1-2 are shown in table 1, and the antibacterial aerated brick prepared by the technical scheme of the invention has the characteristics of excellent antibacterial property and mechanical property.
Claims (8)
1. An antibacterial aerated brick is characterized by comprising the following raw materials in parts by weight: 60-90 parts of fly ash, 10-20 parts of quick lime, 10-15 parts of cement, 5-15 parts of gypsum, 8-10 parts of aluminum powder paste, 5-10 parts of montmorillonite powder and 6-8 parts of traditional Chinese medicine residues, wherein the traditional Chinese medicine residues are one or more of coptis chinensis, scutellaria baicalensis, clove, anise or rhubarb, the content of the traditional Chinese medicines is more than 30%, and the water-material ratio is 0.6-0.7.
2. The antibacterial aerated brick according to claim 1, which is characterized by comprising the following raw materials in parts by weight: 70-90 parts of fly ash, 15-20 parts of quick lime, 10-15 parts of cement, 10-15 parts of gypsum, 8-10 parts of aluminum powder paste, 8-10 parts of montmorillonite powder and 6-8 parts of traditional Chinese medicine residues.
3. The antibacterial aerated brick according to claim 1, which is characterized by comprising the following raw materials in parts by weight: 60-70 parts of fly ash, 10-15 parts of quick lime, 10-15 parts of cement, 5-10 parts of gypsum, 8-9 parts of aluminum powder paste, 5-8 parts of montmorillonite powder and 6-8 parts of traditional Chinese medicine residues.
4. The antibacterial aerated brick according to any one of claims 1 to 3, wherein the raw material further comprises copper-containing aluminum phosphate, and the weight part of the copper-containing aluminum phosphate is 10 to 15 parts.
5. The antibacterial aerated brick according to claim 4, wherein the raw materials further comprise 3-8 parts by weight of steel fibers.
6. The processing technology of the antibacterial aerated brick according to claim 5, characterized by comprising the following steps:
1) preparing fly ash, quicklime, cement, gypsum, aluminum powder paste, montmorillonite powder, traditional Chinese medicine residues, steel fibers and copper-containing aluminum phosphate according to the proportion;
2) mixing coal ash, quicklime, cement, gypsum, montmorillonite powder and steel fiber, adding water, uniformly mixing, adding aluminum powder paste to obtain slurry,
3) injecting the stirred slurry into a mold, then placing the mold into a static curing chamber, sealing and insulating the mold at 55-60 ℃, keeping the static curing time for 1.8-2 hours, and then cutting the mold to obtain a green brick;
4) mixing aluminum phosphate containing copper and silica colloid to prepare a coating, spraying the coating on a green brick, and putting the green brick into a high-pressure autoclave for autoclave curing at the temperature of 100-130 ℃;
5) and after the steam curing is finished, removing the pressure of the green bricks in the still kettle, cooling and discharging the green bricks out of the still kettle to obtain the aerated bricks.
7. The processing technology of the antibacterial aerated brick according to claim 6, wherein the steam curing time is 10-12 hours, and the steam curing pressure is 7-10 MPa.
8. The processing technology of the antibacterial aerated brick according to claim 7, wherein the diameter of the steel fiber is 0.08-0.2 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911136278.0A CN110698217A (en) | 2019-11-19 | 2019-11-19 | Processing technology of antibacterial aerated brick |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911136278.0A CN110698217A (en) | 2019-11-19 | 2019-11-19 | Processing technology of antibacterial aerated brick |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115849944A (en) * | 2022-12-21 | 2023-03-28 | 江苏恒尚节能科技股份有限公司 | Aerated concrete block for building curtain wall and preparation method thereof |
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