CN111763098A - Method for producing masonry material by using foamed ceramic waste - Google Patents
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- CN111763098A CN111763098A CN202010556644.4A CN202010556644A CN111763098A CN 111763098 A CN111763098 A CN 111763098A CN 202010556644 A CN202010556644 A CN 202010556644A CN 111763098 A CN111763098 A CN 111763098A
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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
- C04B28/04—Portland 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
- C04B2111/40—Porous or lightweight materials
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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
- C04B2111/52—Sound-insulating materials
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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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
- 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 Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the field of waste solid recycling, in particular to a method for producing a masonry material by using foamed ceramic waste. The method comprises the following steps: step 1) recycling and crushing the foamed ceramic waste, screening for later use, and screening to obtain granular waste and powdery waste, wherein the grain size of the granular waste is 1-30 mm, and the grain size of the powdery waste is less than 1 mm; step 2) weighing the following raw materials in percentage by mass: cement: 15 to 60 percent; granular waste: 5 to 40 percent; powdery waste: 0 to 50 percent; step 3), adding water and mixing to prepare slurry; and 4) molding the slurry, wherein a foamed ceramic material is used as a mold during molding, and the molded mold and the material obtained after the slurry is cured are compounded into a whole to obtain the masonry material. Compared with the prior art, the masonry material obtained by the method has good sound insulation performance.
Description
Technical Field
The invention relates to the field of waste solid recycling, in particular to a method for producing a masonry material by using foamed ceramic waste.
Background
The foamed ceramic is a ceramic material with closed pores, has the characteristic of light weight and heat preservation, and is commonly used as a heat preservation material of a wall body. At present, the process for industrially producing the foamed ceramic is mature day by day, and the foamed ceramic plate can be obtained by adding a high-temperature foaming agent into ceramic production raw materials, firing at high temperature and then cutting, polishing and grinding. The commonly used high-temperature foaming agent comprises silicon carbide, carbon powder, ferric oxide and the like, and most of the foaming agents applied in the current industrial production are silicon carbide powder or polishing slag containing silicon carbide. The foamed ceramic can expand rapidly in the sintering process, and the problems of cracking and the like easily occur in the cooling process due to stress concentration; when the process is changed (such as formulation, sintering process, powder particle ratio, etc.), a large amount of waste products may be generated, and in addition, a large amount of waste residues are generated in the blank processing of the foamed ceramics. At present, waste products and waste residues of the foamed ceramics are mostly treated and buried or recycled as raw materials for producing the foamed ceramics. A large amount of land resources are occupied for landfill, and the sintered foamed ceramics are difficult to weather and seriously pollute the soil. The waste foamed ceramic material is ground into fine powder when being reused as a raw foamed ceramic material, the processing cost in the grinding process is high, and the processing cost can be greatly reduced if the foamed ceramic material can be simply crushed for use.
The concrete is a hydraulic material prepared by uniformly mixing cement as a cementing material and barren materials such as sand, stone and the like as aggregates. The foamed ceramic waste is a barren raw material, and has certain volcanic ash activity after being crushed into fine powder, so that the foamed ceramic waste can be used as a filler in concrete. However, this method still requires crushing the waste foamed ceramics into fine powder for use. In addition, this method requires complicated subsequent processing, and is not as convenient as the foamed ceramic powder crushed to be used as a raw material for foamed ceramic production. In view of the above, a simple, convenient and efficient method for consuming the waste foamed ceramics is urgently needed. The lightweight masonry material having excellent heat insulating properties can be obtained by using the foamed ceramic waste particles as a raw material for concrete as it is, for example, in a domestic application having patent publication No. CN108892451A by the applicant. However, the masonry material obtained in the mode still needs to be improved in comprehensive performance, and particularly the sound insulation performance is common. And the combination degree of the method and the production process of the foamed ceramics is not tight enough, the foamed ceramics waste needs to be treated and then conveyed to a concrete mixing plant for treatment, and secondary pollution is easily caused.
Disclosure of Invention
The invention provides a method for producing masonry material by using foamed ceramic waste, aiming at the technical problems in the background technology, the method does not need to grind the foamed ceramic waste into fine powder, and can fully utilize the fine powder only by crushing and screening the fine powder, the prepared masonry material has the characteristics of light weight, sound insulation and the like, also has good sound insulation performance, has good compatibility with the production process of foamed ceramic plates, can be used as the supplement of the foamed ceramic plates, has low energy consumption in the production process, and has no secondary pollution.
A method for producing a masonry material by using foamed ceramic waste comprises the following steps:
step 1) recycling and crushing the foamed ceramic waste, screening for later use, and screening to obtain granular waste and powdery waste, wherein the grain size of the granular waste is 1-30 mm, and the grain size of the powdery waste is less than 1 mm;
step 2) weighing the following raw materials in percentage by mass:
cement: 15 to 60 percent;
granular waste: 5 to 40 percent;
powdery waste: 0 to 50 percent;
step 3), adding water and mixing to prepare slurry;
and 4) curing the formed slurry to obtain the masonry material, wherein the foamed ceramic material is used as a mold during forming, and the molded mold and the cured slurry are compounded into a whole to obtain the masonry material.
Waste materials are generated in many links in the generation process of the foamed ceramic waste materials. Firstly, the polishing and grinding step is carried out, the volume is expanded violently in the firing process of the foamed ceramic, so that the fired blank needs polishing, grinding and cutting to prepare a product in a required shape, a large amount of irregular chips are generated in the polishing, grinding and cutting process, and the chips are in various shapes such as sheets, granules and the like. The second is waste products, the production quality of the foamed ceramics is low, particularly, under the condition that a large number of through air holes are formed in the foamed ceramics, the generated waste products are more, the waste products are large flat-shaped, the recycling is difficult, and the waste products are mostly treated by adopting a stacking mode at present. According to the scheme of the invention, waste materials generated in the production process of the foamed ceramic are recycled and then crushed and sieved, the hardness of the foamed ceramic is lower, so that the requirement on equipment required for crushing is lower, and the crushed and sieved materials are respectively obtained into particles with the particle size of 1-30 mm and powder with the particle size of less than 1 mm. At present, the pore diameter of foamed ceramics used in industrial production is about 0.5mm, so that after the foamed ceramics are crushed into particles with the particle diameter of less than 1mm, most of the powder particles do not contain a complete pore. The foamed ceramic particles with the particle size of 1mm-30mm can improve the sound insulation performance of the material, and when sound waves are transmitted in the material, the sound waves are interfered by the porous material particles, so that the sound insulation effect is achieved. However, the method has limited functions, so that the method of the invention uses the foamed ceramic material as the mould, the masonry material formed in the way is a composite material of the foamed ceramic material and the concrete material with the block-shaped foamed ceramic inside, the foamed ceramic material is arranged on the outer layer, the concrete material with the block-shaped foamed ceramic inside is arranged on the inner layer, the sound wave passes through the external foamed ceramic layer and then enters the concrete layer inside, the sound wave energy is further consumed, and the sound insulation effect is good.
Preferably, in the above method for producing a masonry material using foamed ceramic waste, the particle size of the granulated waste is preferably 10mm to 20 mm.
Preferably, in the method for producing the masonry material by using the foamed ceramic waste, the raw materials further comprise aluminum powder added in the form of an additive, and the adding amount of the aluminum powder is 0.01-0.1% of the total mass.
Preferably, in the above method for producing a masonry material using a foamed ceramic waste, the granulated waste has a bulk density of 0.3kg/cm3～0.8kg/cm3。
Preferably, in the above method for producing a masonry material using a foamed ceramic waste, the pores of the granulated waste include closed pores and open pores passing therethrough, and the pores are mainly open pores passing therethrough.
Preferably, in the above method for producing a masonry material using a foamed ceramic waste, the average particle size of the powdery waste is 80 to 300 μm.
Preferably, in the above method for producing a masonry material using a foamed ceramic waste, the forming and curing mode is any one of the following modes:
firstly, prefabricating a formwork with a cavity by using a foamed ceramic material, then pouring slurry into the cavity, curing after shaking, and bonding the slurry and the formwork into a whole after curing to obtain a masonry material;
coating the slurry on the foamed ceramic plate, vibrating and scraping, maintaining, and bonding the slurry and the foamed ceramic plate into a whole to obtain a masonry material;
and thirdly, coating the slurry on the foamed ceramic plate, vibrating and leveling, placing a foamed ceramic plate, repeating the steps of coating the slurry, vibrating and leveling and placing the foamed ceramic plate, wherein the number of times N of repetition is a positive integer larger than or equal to 1, and after maintenance, bonding the slurry and the foamed ceramic plate into a whole to obtain the masonry material.
Preferably, in the method for producing the masonry material by using the foamed ceramic waste, the powdery waste accounts for 15-40% of the raw materials by mass.
Preferably, in the method for producing the masonry material by using the foamed ceramic waste, the granular waste accounts for 20-30% of the raw materials by mass.
Preferably, in the above method for producing a masonry material using a foamed ceramic waste, the granulated waste is produced by crushing at least two kinds of foamed ceramic waste having different bulk densities and then mixing and screening the crushed waste.
Compared with the prior art, the method for producing the masonry material by using the foamed ceramic waste has the advantages that the product sound insulation performance is good, the production process has good goodness of fit with the production process of the foamed ceramic plate, the mould used for forming is the foamed ceramic plate, the use scene of the obtained masonry material product is similar to that of the foamed ceramic plate/building block, the product series can be enriched, and the secondary pollution caused by the conveying link is reduced.
Drawings
Fig. 1 is a schematic cross-sectional structural view of a masonry material provided in embodiment 1 of the present invention.
Fig. 2 is a schematic cross-sectional structure of a masonry material provided in comparative example 1 of the present invention.
Fig. 3 is a schematic cross-sectional structural view of a masonry material provided in embodiment 5 of the present invention.
The reference numbers illustrate:
1-concrete; 2-granular foamed ceramic waste and 3-foamed ceramic.
Detailed Description
The invention is described in detail below with reference to the figures and the detailed description.
Example 1
The waste foamed ceramics used in all the examples of the present invention are waste materials produced in the production line of foamed ceramic boards of the applicant (new jinyuanneng), and include defective waste products and chips produced by cutting and polishing in the production process of foamed ceramics.
Crushing the foamed ceramic waste by using a crusher, and then screening the crushed material to obtain granular waste and powdery waste, wherein the grain diameter of the granular waste is 1-30 mm, and the grain diameter of the powdery powder is less than 1 mm.
Weighing 325 mass percent of cement, granular waste and powdery waste: 325 percent of cement, 20 percent of granular waste and 30 percent of powdery waste are added with water and mixed evenly to prepare the slurry.
Selecting a foamed ceramic plate with the specification of 2000mm 1000mm 20mm, arranging a peripheral edge with the height of 60mm around the foamed ceramic plate, pouring slurry, vibrating and leveling, maintaining in a humid environment for at least 15 days, and removing the peripheral edge around the foamed ceramic plate to obtain the masonry material with the section as shown in the figure 1, wherein the thickness of the masonry material is about 80 mm. Detecting the sample under the following conditions: the volume of the sound source chamber is 129.5m3Receiving chamber volume 96.3m3The air temperature of the sound source chamber is 30.2 ℃, the air temperature of the receiving chamber is 30.3 ℃, the relative humidity of the sound source chamber is 52.7 percent, and the relative humidity of the receiving chamber is 56.3 percent. After the test, fitting calculation is carried out on the test curve, and the air sound insulation quantity is 47.3 dB.
Comparative examples 1 to 1
And preparing slurry according to the proportioning process of the embodiment 1, pouring the slurry into a conventional mold, and vibrating and compacting to obtain the masonry material product in the required shape. In this example, we made a sheet material with a specification of 2000mm 1000mm 80mm, and cured the sheet material in a humid environment for at least 15 days to obtain a sheet material for wall masonry, the cross-sectional structure of which is shown in fig. 2, and a concrete 1 is wrapped with a granular foamed ceramic waste 2. The panel was tested and the air sound insulation was 38dB, and the sound insulation performance of the material was normal for this thickness.
Comparative examples 1 to 2
In this example, we replaced the granulated foamed ceramic waste with the powdered foamed ceramic waste. Other processes are the same, and the concrete plate with the same specification is prepared.
Testing the performance of the alloy: the air sound insulation was 33dB, which is similar to the sound insulation performance of a conventional concrete slab at this thickness.
The test results show that the masonry material obtained by adding the coarse-grained foamed ceramic waste into the concrete raw material to prepare the slurry and using the foamed ceramic material as the mold for molding has good sound insulation performance. The sound wave is transmitted by taking the material as a medium, and the energy of the sound wave is absorbed by the material in the transmission process. The air holes in the foamed ceramics are mostly closed, so the sound insulation effect is general, and the concrete has similar situation. However, the light porous material particles are added into the concrete, the situation is changed, and the sound waves have large propagation loss in the light porous material particles, so that the sound insulation effect is improved, and the sound waves are disordered because the light porous material is randomly distributed and the sizes of the single particles are different, and the sound insulation effect is particularly good after the light porous material particles are compounded with the foamed ceramic plate with uniformly closed air holes.
Through our experiments, the mixture ratio range of the cement, the granular waste and the powdery waste can be as follows: cement: 15 to 60 percent; granular waste: 5 to 40 percent; powdery waste: 0 to 50 percent. Ranges are given herein as being between any one of the endpoints of the range (inclusive). The cement accounts for at least 15% of the total mass, so that the basic molding of the raw materials can be ensured. The addition amount of the granular waste is preferably not less than 5 percent, otherwise, the sound insulation performance of the masonry material is difficult to ensure, the sound insulation performance of the masonry material is improved along with the addition of the granular waste, but when the granular waste accounts for more than 30 percent of the total mass of the raw materials, the strength of the masonry material is reduced, so that the granular waste accounts for 20 to 30 percent of the total mass of the raw materials. The powdered material mainly acts as filler and reduces the consumption of cement, preferably 15-40%.
Example 2
Under the condition of determined raw material proportion, the particle size of the granular waste is related to the compressive strength and the air sound insulation quantity of the masonry material. We tested this. The following mass ratio of 325 percent cement is selected; 20% of granular waste and 40% of powdery waste.
2-1, and the particle size of the granular waste is 5-10 mm.
2-2, the particle size of the granular waste is 10-15 mm.
2-3, and the particle size of the granular waste is 15-20 mm.
2-4, and the particle size of the granular waste is 20-25 mm.
2-5, and the particle size of the granular waste is 25-30 mm.
Other processes are as in example 1, masonry materials with a thickness of 80mm are prepared, and the sound insulation performance is tested as follows:
2-1: the amount of air sound insulation is 47 dB.
2-2: the air insulation amount was 49 dB.
2-3: the air sound insulation amount is 50 dB.
2-4: the air sound insulation amount is 45 dB.
2-5: the amount of air sound insulation is 43 dB.
The test results show that the particle size of the granular foamed ceramic waste is preferably 10mm-20mm, and the air sound insulation quantity in the range has better performance.
Example 3
The masonry material having the pores can be obtained by adding a raw material capable of generating gas, such as aluminum powder, to the raw material. The aluminum powder is added in the form of an additive, the aluminum powder reacts with water, and the cement contains a certain amount of calcium oxide, so that hydrogen is generated to form pores in the masonry material. The addition amount of the aluminum powder is preferably 0.01 to 0.1 percent of the total mass of the raw materials. In this example, the amount of the powdery aluminum added was 0.04% by mass of the total mass of the raw materials. The concrete mixture ratio is as follows: 40% of 325 cement, 30% of granular waste with the particle size of 10-15 mm, 30% of powdered waste and 0.04% of aluminum powder.
The rest of the process was as in example 1, and the finally obtained masonry material had a bulk density of 0.88kg/cm3The compression strength is 6.8Mpa, and the air sound insulation quantity is 47 dB. The foamed ceramic used had a bulk density of 0.45 kg/cm3. The volume density of the foamed ceramic produced by the process is 0.3kg/cm3～0.8kg/cm3The bulk density of the corresponding particulate foamed ceramic waste is also within this range.
Example 4
The air holes in the granular waste comprise closed air holes and through open air holes, and the air holes in the scrapped foamed ceramics are mainly the through open air holes (over-firing or the process parameters are not controlled in the firing exhaust stage). We compared the performance of masonry materials made from granular waste materials with closed porosity as the main component and granular waste materials with through porosity as the main component.
4-1: 325% of cement, 35% of granular waste mainly containing closed pores, 20% of powdered waste and 0.05% of aluminum powder.
4-2: 325% of cement, 35% of granular waste mainly comprising through pores, 20% of powdery waste and 0.05% of aluminum powder.
The concrete preparation process was as in example 1, and masonry materials of 80mm thickness (composite 20mm thick foamed ceramics) were prepared.
The article properties were tested and recorded as follows:
4-1: density 0.58kg/cm3The compression strength is 6.6Mpa, and the air sound insulation capacity is 45 dB.
4-2, density 0.59kg/cm3The compression strength is 6.6Mpa, and the air sound insulation capacity is 49 dB.
The use of the granular foamed ceramic waste mainly comprising through-air holes is beneficial to improving the sound insulation performance of the masonry material. The through air holes can provide a convenient passage for sound, but the air holes in the foamed ceramics are extremely irregular in communication, so that more energy is lost in the transmission process, and the particle size of the granular waste is not less than 10mm under the condition that the through air holes are mainly arranged.
In addition, the granular waste is preferably prepared by crushing at least two kinds of foamed ceramic waste with different bulk densities and then mixing and sieving, and in the above 4-2 embodiment, the granular waste is selected to have a density of 0.41 kg/cm3And a density of 0.59kg/cm3When the foamed ceramic waste is crushed and mixed, the air sound insulation amount of the product can be improved to 53 dB. The mass ratio of the mixture in this example was 1: 1, the proportion is only exemplary, the rest of the mass proportions are possible, the improvement effect is not obvious if one is particularly more than one and particularly less than the corresponding improvement effect, and if the granular waste materials with different densities are selected, the density difference between the two is more than or equal to 0.05 kg/cm3Preferably, the ratio of the two is not less than 1: preferably 10.
Example 5
In this example, another forming method is described, the slurry prepared in example 1 is applied to a foamed ceramic plate, vibrated and scraped, and then a foamed ceramic plate is placed, the steps of applying the slurry, vibrating and scraping and placing the foamed ceramic plate are repeated, the number of times N of the repetition is a positive integer not less than 1, and after curing, the slurry and the foamed ceramic plate are bonded into a whole, so that a masonry material is obtained. Specifically, the following method is adopted in this embodiment:
preparing slurry according to the proportion of the embodiment 1, smearing the slurry on a foamed ceramic plate with the thickness of 10mm, vibrating and scraping to form a concrete layer with the thickness of 25mm, then placing the foamed ceramic plate with the thickness of 10mm on the concrete layer, repeatedly smearing the slurry, vibrating and scraping to form a concrete layer with the thickness of 25mm, and finally placing the foamed ceramic plate with the thickness of 10 mm. And curing the mixture in a humid environment for at least 15 days to form a masonry material with the thickness of about 80mm, and testing the air sound insulation amount to be 51 dB. The cross-section of the article obtained is shown in figure 3.
Of course, the thickness of each concrete layer may be different, and the thickness, pore size and density of the foamed ceramic plate used are also different as best, so that the sound wave is more greatly lost therein, and the air sound insulation can be further improved to 55 dB.
Besides the forming mode, a formwork with a cavity can be prefabricated by using a foamed ceramic material, then slurry is poured into the cavity, maintenance is carried out after vibration, and the slurry is bonded with the formwork into a whole after solidification, so that the masonry material is obtained.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. A method for producing a masonry material by using foamed ceramic waste is characterized by comprising the following steps:
step 1) recycling and crushing the foamed ceramic waste, screening for later use, and screening to obtain granular waste and powdery waste, wherein the grain size of the granular waste is 1-30 mm, and the grain size of the powdery waste is less than 1 mm;
step 2) weighing the following raw materials in percentage by mass:
cement: 15 to 60 percent;
granular waste: 5 to 40 percent;
powdery waste: 0 to 50 percent;
step 3), adding water and mixing to prepare slurry;
and 4) carrying out forming maintenance on the slurry, using a foamed ceramic material as a mold during forming, and compounding the molded mold and the material solidified by the slurry into a whole to obtain the masonry material.
2. A method of producing masonry material using foamed ceramic waste according to claim 1 wherein said particulate waste has a particle size of 10mm to 20 mm.
3. The method for producing a masonry material using a ceramic foam waste according to claim 1, wherein said raw material further comprises aluminum powder added in the form of an additive, and said aluminum powder is added in an amount of 0.01 to 0.1% by mass of the total mass.
4. A method of producing masonry material using foamed ceramic waste according to claim 1 wherein said granulated waste has a bulk density of 0.3kg/cm3-0.8kg/cm3。
5. A method of producing masonry material using foamed ceramic waste according to claim 1 wherein said voids of said particulate waste comprise closed voids and open voids therethrough, and said voids are predominantly open voids therethrough.
6. A method of producing masonry material using foamed ceramic waste according to claim 1 wherein said powdered waste has an average particle size of 80 to 300 microns.
7. The method for producing masonry material using ceramic foam waste according to claim 1, wherein the forming and curing mode is any one of the following modes:
firstly, prefabricating a formwork with a cavity by using a foamed ceramic material, then pouring the slurry into the cavity, vibrating and maintaining, and bonding the slurry and the formwork into a whole after curing to obtain a masonry material;
coating the slurry on a foamed ceramic plate, vibrating and scraping, and after maintenance, bonding the slurry and the foamed ceramic plate into a whole to obtain a masonry material;
and thirdly, coating the slurry on the foamed ceramic plate, vibrating and leveling, placing a foamed ceramic plate, repeating the steps of coating the slurry, vibrating and leveling and placing the foamed ceramic plate, wherein the number of times N of repetition is a positive integer larger than or equal to 1, and after maintenance, bonding the slurry and the foamed ceramic plate into a whole to obtain the masonry material.
8. The method for producing masonry material using ceramic foam waste according to claim 1, wherein said powdered waste is 15-40% by mass of the raw material.
9. The method for producing masonry material using ceramic foam waste according to claim 1, wherein said granular waste is 20-30% by mass of the raw materials.
10. The method for producing masonry material using ceramic foam according to claim 1, wherein said granulated waste is produced by crushing at least two kinds of ceramic foam having different bulk densities, mixing and sieving.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111875308A (en) * | 2020-08-18 | 2020-11-03 | 广东金绿能科技有限公司 | Concrete powder, concrete prefabricated member and application of concrete prefabricated member in building construction |
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