CN112062505A - Water permeable brick prepared from construction waste and preparation method thereof - Google Patents
Water permeable brick prepared from construction waste and preparation method thereof Download PDFInfo
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- CN112062505A CN112062505A CN202010966301.5A CN202010966301A CN112062505A CN 112062505 A CN112062505 A CN 112062505A CN 202010966301 A CN202010966301 A CN 202010966301A CN 112062505 A CN112062505 A CN 112062505A
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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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/28—Polysaccharides or derivatives thereof
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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
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
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Abstract
The application discloses utilize brick that permeates water of building rubbish preparation, its raw materials include according to parts by weight: 40-50 parts of construction waste, 25-35 parts of phosphate tailings, 15-25 parts of brick red aggregate, 8-12 parts of air-permeable auxiliary agent, 1-3 parts of curing agent and 1-3 parts of water. The invention also provides a preparation method of the water permeable brick prepared by using the construction waste. The construction waste is used as the main material, the phosphate tailings are used as the auxiliary material, waste is turned into wealth, the requirement of environmental protection is met, the brick red aggregate is added to enhance the strength of the water permeable brick, the air permeable auxiliary agent is used for meeting the water permeability requirement of the water permeable brick, and the curing agent is added to improve the forming performance of the water permeable brick.
Description
Technical Field
The invention belongs to the technical field of water permeable bricks, and particularly relates to a water permeable brick prepared from construction waste and a preparation method thereof.
Background
The water permeable brick is a new environment-friendly building material product which is produced for solving the problem of hardening of the surface of the city, creating a high-quality natural living environment and maintaining the ecological balance of the city. Due to the structural characteristics of high water permeability and high porosity, on one hand, the water accumulation on the road surface is eliminated, underground water resources are supplemented in time, the foundation subsidence is reduced, and the pressure of urban flood fighting drainage and pipeline dredging is relieved; on the other hand, the water in the inner hole of the brick is evaporated, so that the heat energy absorption and the heat island effect of the bottom surface of the city are reduced, and the noise pollution of the city is effectively reduced. The sponge city is an important concept and method for solving ecological environment problems of urban waterlogging, water resource shortage and the like in China. And the brick that permeates water possesses bigger and bigger demand in the construction process of "sponge city" as the constitutional unit of the structure of mating formation of water permeability. The water permeable bricks on the market are basically prepared by using ceramic waste materials as main raw materials, on one hand, along with the continuous increase of test points cities of sponge cities, the market demand of the water permeable bricks is vigorous year by year, the demand of the water permeable brick industry on waste ceramics is continuously increased, the environmental protection treatment strength of the national ceramic industry is increased unprecedentedly, the production scale of ceramic production enterprises is restricted, the productivity is sharply reduced, and the generated waste materials are also obviously reduced. Such a situation leads to the ceramic waste materials which were previously seen everywhere now becoming extremely robbing, and the situation of buying the ceramic waste materials across provinces and production areas in a rush mode currently occurs.
The brick that permeates water among the prior art is relatively poor in heat resistance, can't satisfy the demand when in actual use, so this urgent need develop the brick that permeates water that utilizes building rubbish preparation to solve the problem among the prior art.
Disclosure of Invention
The invention aims to provide a water permeable brick prepared from construction waste and a preparation method thereof.
In order to solve the technical problems, the invention adopts the following technical scheme:
a water permeable brick prepared from construction waste comprises the following raw materials in parts by weight: 40-50 parts of construction waste, 25-35 parts of phosphate tailings, 15-25 parts of brick red aggregate, 8-12 parts of air-permeable auxiliary agent, 1-3 parts of curing agent and 1-3 parts of water.
Preferably, the raw materials comprise the following components in parts by weight: 45 parts of construction waste, 30 parts of phosphate tailings, 20 parts of brick red aggregate, 10 parts of air-permeable auxiliary agent, 2 parts of curing agent and 2 parts of water.
Preferably, the curing agent comprises the following raw materials in parts by weight: 8-12 parts of crosslinked polyacrylonitrile-styrene copolymer, 1-5 parts of potassium persulfate, 2-5 parts of polyaryl phosphate, 3-6 parts of polypropylene, 4-8 parts of silane coupling agent KH-550, 3-9 parts of diatomite, 2-6 parts of aluminum polyphosphate, 4-8 parts of sepiolite powder, 3-9 parts of nano aluminum hydroxide, 2-5 parts of antimony trioxide and 4-8 parts of zinc borate.
Preferably, the curing agent is prepared by the following process: uniformly mixing a crosslinked polyacrylonitrile-styrene copolymer, polypropylene, potassium persulfate and polyaryl phosphate, heating to 60-80 ℃, keeping the temperature for 2-4h to obtain a core, adding a silane coupling agent KH-550, diatomite, sepiolite powder, nano aluminum hydroxide, antimony trioxide, zinc borate and aluminum polyphosphate into the core, uniformly mixing, stirring at the rotation speed of 650 plus 850r/min for 10-30min, adjusting the pH value to 3.5-5.0, heating to 65-75 ℃, keeping the temperature for 0.5-1.5h to form a shell layer on the periphery of the core, washing, drying in vacuum at 65-75 ℃ to constant weight, and cooling to room temperature to obtain a curing agent.
Preferably, the raw materials of the air-permeable auxiliary comprise, by weight: 6-9 parts of seaweed meal, 4-8 parts of natural zeolite, 2-6 parts of a sodium chloride solution with the mass fraction of 5-15%, 4-7 parts of a lanthanum chloride solution with the mass fraction of 15-35%, 2-6 parts of a silver nitrate solution with the mass fraction of 4-8%, 4-8 parts of titanium dioxide, 2-6 parts of N, N-dimethylacetamide, 4-8 parts of zinc oxide, 4-6 parts of a silane coupling agent KH-5702-6 parts, 4-8 parts of bentonite, 3-9 parts of kaolin, 2-5 parts of chitosan oligosaccharide, 1-4 parts of sodium carbonate, 3-6 parts of chitosan, 1-5 parts of fly ash, 4-8 parts of polyethylene glycol, 3-6 parts of glycolic acid, 4-8 parts of araboxylan and 2-6 parts of hyaluronic acid.
Preferably, the air-permeable auxiliary agent is prepared by the following process: mixing seaweed powder, natural zeolite and 5-15% sodium chloride solution uniformly, stirring for 1-3h, filtering, dehydrating, drying, roasting at 550 ℃ of 450-; uniformly mixing titanium dioxide and N, N-dimethylacetamide, stirring at the rotation speed of 850r/min of 650-; the method comprises the steps of uniformly mixing bentonite, kaolin, chitosan oligosaccharide, sodium carbonate, chitosan and fly ash, stirring at the rotation speed of 650r/min for 20-30min, drying in a freeze dryer at-30 to-50 ℃ for 20-40min, adding polyethylene glycol and glycolic acid, uniformly mixing, stirring at the rotation speed of 4500 + 5500r/min for 10-20min, adding arabinoxylan, hyaluronic acid and a material b, uniformly mixing, heating to 70-80 ℃, preserving heat for 10-20min, centrifuging at the rotation speed of 8500 + 12000r/min, collecting, washing, and freeze-drying to obtain the air-permeable assistant.
The invention also provides a preparation method of the water permeable brick prepared from the construction waste, which comprises the following steps: mixing and stirring the construction waste and the phosphate tailings for 1-3min, adding brick red aggregate, uniformly mixing, drying at the temperature of 120-140 ℃ for 4-8h, crushing into particles of 30-40 meshes, adding the air-permeable auxiliary agent, the curing agent and water, uniformly mixing, pressing in a mold, and performing steam curing to obtain a finished brick.
The invention has the following beneficial effects: the construction waste is used as a main material, the phosphate tailings are used as auxiliary materials, waste is turned into wealth, the requirement of environmental protection is met, brick red aggregate is added to enhance the strength of the water permeable brick, the water permeability requirement of the water permeable brick is met by the aid of the air permeable auxiliary agent, and the forming performance of the water permeable brick is improved by the aid of the curing agent.
The curing agent takes the cross-linked polyacrylonitrile-styrene copolymer and the polyaryl phosphate ester as raw materials, potassium persulfate is taken as an initiator to prepare a core, then a silane coupling agent KH-550 is taken as a connecting intermediate between the core and a shell layer, so that the diatomite, the sepiolite powder, the nano aluminum hydroxide, the antimony trioxide, the zinc borate and the aluminum polyphosphate are connected to the periphery of the core through the silane coupling agent KH-550 to form the shell layer, and as the diatomite, the sepiolite powder, the nano aluminum hydroxide, the antimony trioxide, the zinc borate and the aluminum polyphosphate are all refractory fillers, on one hand, the curing agent is endowed with good flame retardant effect on the periphery of the core, and meanwhile, the prepared curing agent is granulated due to the formation of the core shell, the surface area of the granulated curing agent is smaller, and in a reinforcing system, the silsesquioxane can further connect the curing agent to the periphery, the granulation curing agent that the surface area is littleer can be more even distribution at polycarbonate's surface to the realization makes polycarbonate form spatial grid structure, and in spatial grid structure, silsesquioxane can also be connected to white carbon black and organic matter modified montmorillonite on polycarbonate, thereby effectively improves the fire behaviour of brick that permeates water.
The air-permeable auxiliary agent is prepared by uniformly mixing seaweed powder, natural zeolite and a sodium chloride solution, stirring, filtering, dehydrating, drying, roasting, then placing the mixture in a lanthanum chloride solution, stirring, filtering, dehydrating, drying, placing the roasted mixture in a silver nitrate solution, stirring and drying to obtain a material a; mixing titanium dioxide and N, N-dimethylacetamide uniformly, heating, preserving heat, introducing nitrogen, adding a material a and zinc oxide, uniformly mixing, stirring, adding a silane coupling agent KH-570, uniformly mixing, heating, preserving heat, and cooling to room temperature to obtain the antibacterial mildew-proof antibacterial seaweed powder, wherein the porous structures of the seaweed powder and the natural zeolite are kneaded with the antibacterial properties of fluorine, silver, lanthanum and zinc to make the fluorine, silver, lanthanum and zinc attached to the pores of the seaweed powder and the natural zeolite, and after contacting with bacteria, the enzymes of the bacteria under the respiration action are disabled, and the bacteria die after failing to breathe, and in addition, viscous materials such as arabinoxylan, hyaluronic acid, polyethylene glycol and glycolic acid are added into the mildew-proof air-permeable modifying auxiliary agent, bentonite, kaolin, chitosan oligosaccharide and dehullingtin are added into the viscous materials, the water-permeable brick has the advantages that the number of hydroxyl groups and carboxyl groups in unit volume is increased while pores are enriched, the water-permeable brick is endowed with excellent water absorption performance by utilizing the strong hydrophilic groups of the hydroxyl groups and the carboxyl groups, the hydroxyl groups on the surface of the water-locking reinforcing material are grafted and combined with unsaturated bonds on the surface of hydrogel, and sodium carbonate and fly ash are added into a viscous material as an expanding agent, so that the gaps of the water-absorbing reinforcing auxiliary agent are further enriched, and the water absorption performance of the water-permeable brick is effectively improved.
Detailed Description
In order to facilitate a better understanding of the invention, the following examples are given to illustrate, but not to limit the scope of the invention.
In the embodiment, the water permeable brick prepared from the construction waste comprises the following raw materials in parts by weight: 40-50 parts of construction waste, 25-35 parts of phosphate tailings, 15-25 parts of brick red aggregate, 8-12 parts of air-permeable auxiliary agent, 1-3 parts of curing agent and 1-3 parts of water.
The curing agent is prepared by the following process: uniformly mixing 8-12 parts of crosslinked polyacrylonitrile-styrene copolymer, 3-6 parts of polypropylene, 1-5 parts of potassium persulfate and 2-5 parts of polyaryl phosphate according to parts by weight, heating to 60-80 ℃, preserving heat for 2-4 hours to obtain a core, adding 4-8 parts of silane coupling agent KH-550, 3-9 parts of kieselguhr, 4-8 parts of sepiolite powder, 3-9 parts of nano aluminum hydroxide, 2-5 parts of antimony trioxide, 4-8 parts of zinc borate and 2-6 parts of aluminum polyphosphate into the core, uniformly mixing at the rotation speed of 650 + 850r/min, stirring for 10-30min, adjusting the pH to 3.5-5.0, heating to 65-75 ℃, preserving heat for 0.5-1.5 hours, forming a constant shell layer on the periphery of the core, washing, drying in vacuum at 65-75 ℃ to reach constant weight, cooling to room temperature to obtain the product.
The air-permeable auxiliary agent is prepared by the following process: uniformly mixing 6-9 parts of seaweed powder, 4-8 parts of natural zeolite and 2-6 parts of sodium chloride solution with the mass fraction of 5-15%, stirring for 1-3h, filtering, dehydrating, drying, roasting at 550 ℃ for 0.5-1.5h, then placing in 4-7 parts of lanthanum chloride solution with the mass fraction of 15-35%, stirring for 1-3h, filtering, dehydrating, drying, then placing in 180 ℃ for 220 ℃ for 0.5-1.5h, then placing in 2-6 parts of silver nitrate solution with the mass fraction of 4-8%, stirring for 2-4h, and drying to obtain a material a; uniformly mixing 4-8 parts of titanium dioxide and 2-6 parts of N, N-dimethylacetamide, stirring at the rotation speed of 650 plus materials at 850r/min for 20-40min, heating to 75-85 ℃, keeping the temperature for 1-3h, introducing nitrogen, adding the material a and 4-8 parts of zinc oxide, uniformly mixing, stirring at the rotation speed of 450 plus materials at 550r/min for 10-14h, then adding 2-6 parts of silane coupling agent KH-570, uniformly mixing, heating to 90-110 ℃, keeping the temperature for 5-15min, stirring at the rotation speed of 1500 plus materials at 2500r/min for 10-20min, and cooling to room temperature to obtain a material b; 4-8 parts of bentonite, 3-9 parts of kaolin, 2-5 parts of chitosan oligosaccharide, 1-4 parts of sodium carbonate, 3-6 parts of chitosan and 1-5 parts of fly ash are uniformly mixed, stirred at the rotation speed of 650r/min for 20-30min, dried in a freeze dryer at the temperature of-30 to-50 ℃ for 20-40min, then 4-8 parts of polyethylene glycol and 3-6 parts of glycolic acid are added and uniformly mixed, stirred at the rotation speed of 5500r/min for 10-20min at 4500 ℃, then 4-8 parts of araboxylan, 2-6 parts of hyaluronic acid and the material b are added and uniformly mixed, the temperature is raised to 70-80 ℃ and kept for 10-20min, then the mixture is centrifugally collected at the rotation speed of 12000r/min at 8500r/min, and then the mixture is freeze-dried to obtain the air permeable additive.
The invention also provides a preparation method of the water permeable brick prepared from the construction waste, which comprises the following steps: mixing and stirring the construction waste and the phosphate tailings for 1-3min, adding brick red aggregate, uniformly mixing, drying at the temperature of 120-140 ℃ for 4-8h, crushing into particles of 30-40 meshes, adding the air-permeable auxiliary agent, the curing agent and water, uniformly mixing, pressing in a mold, and performing steam curing to obtain a finished brick.
Example 1
A water permeable brick prepared from construction waste comprises the following raw materials in parts by weight: 45 parts of construction waste, 30 parts of phosphate tailings, 20 parts of brick red aggregate, 10 parts of air-permeable auxiliary agent, 2 parts of curing agent and 2 parts of water.
The curing agent is prepared by the following process: uniformly mixing 10 parts of crosslinked polyacrylonitrile-styrene copolymer, 4.5 parts of polypropylene, 3 parts of potassium persulfate and 3.5 parts of polyaryl phosphate according to parts by weight, heating to 70 ℃, preserving heat for 3 hours to obtain a core, adding 6 parts of silane coupling agent KH-550, 6 parts of kieselguhr, 6 parts of sepiolite powder, 6 parts of nano aluminum hydroxide, 3.5 parts of antimony trioxide, 6 parts of zinc borate and 4 parts of aluminum polyphosphate into the core, uniformly mixing, stirring at the rotating speed of 750r/min for 20 minutes, adjusting the pH value to 4, heating to 70 ℃, preserving heat for 1 hour, forming a shell layer on the periphery of the core, washing, drying at 70 ℃ in vacuum to constant weight, and cooling to room temperature to obtain the composite material.
The air-permeable auxiliary agent is prepared by the following process: uniformly mixing 7.5 parts of seaweed meal, 6 parts of natural zeolite and 4 parts of sodium chloride solution with the mass fraction of 10%, stirring for 2 hours, filtering, dehydrating, drying, roasting at 500 ℃ for 1 hour, then placing in 6.5 parts of lanthanum chloride solution with the mass fraction of 25%, stirring for 2 hours, filtering, dehydrating, drying, then placing in 200 ℃ for roasting for 1 hour, then placing in 4 parts of silver nitrate solution with the mass fraction of 6%, stirring for 3 hours, and drying to obtain a material a; uniformly mixing 6 parts of titanium dioxide and 4 parts of N, N-dimethylacetamide, stirring at the rotating speed of 750r/min for 30min, heating to 80 ℃, preserving heat for 2h, introducing nitrogen, adding the material a and 6 parts of zinc oxide, uniformly mixing, stirring at the rotating speed of 500r/min for 12h, adding 4 parts of silane coupling agent KH-570, uniformly mixing, heating to 100 ℃, preserving heat for 10min, stirring at the rotating speed of 2000r/min for 15min, and cooling to room temperature to obtain a material b; uniformly mixing 6 parts of bentonite, 6 parts of kaolin, 3.5 parts of chitosan oligosaccharide, 2.5 parts of sodium carbonate, 4.5 parts of chitosan and 3 parts of fly ash, stirring for 25min at the rotation speed of 450r/min, drying for 30min in a freeze dryer at the temperature of-40 ℃, adding 6 parts of polyethylene glycol and 4.5 parts of glycolic acid, uniformly mixing, stirring for 15min at the rotation speed of 5000r/min, adding 6 parts of arabinoxylan, 4 parts of hyaluronic acid and a material b, uniformly mixing, heating to 75 ℃, preserving heat for 15min, centrifugally collecting at the rotation speed of 9500r/min, washing with water, and freeze-drying to obtain the air-permeable assistant.
The invention also provides a preparation method of the water permeable brick prepared from the construction waste, which comprises the following steps: mixing and stirring the construction waste and the phosphate tailings for 2min, adding brick red aggregate, uniformly mixing, drying at 130 ℃ for 6h, crushing into particles of 35 meshes, adding the air-permeable auxiliary agent, the curing agent and water, uniformly mixing, pressing in a mold, and performing steam curing to obtain a finished brick.
Example 2
A water permeable brick prepared from construction waste comprises the following raw materials in parts by weight: 40 parts of construction waste, 35 parts of phosphate tailings, 15 parts of brick red aggregate, 12 parts of air-permeable auxiliary agent, 1 part of curing agent and 3 parts of water.
The curing agent is prepared by the following process: uniformly mixing 8 parts of crosslinked polyacrylonitrile-styrene copolymer, 6 parts of polypropylene, 1 part of potassium persulfate and 5 parts of polyaryl phosphate according to parts by weight, heating to 60 ℃, preserving heat for 4 hours to obtain a core, adding 4 parts of silane coupling agent KH-550, 9 parts of kieselguhr, 4 parts of sepiolite powder, 9 parts of nano aluminum hydroxide, 2 parts of antimony trioxide, 8 parts of zinc borate and 2 parts of aluminum polyphosphate into the core, uniformly mixing, stirring at the rotating speed of 850r/min for 10 minutes, adjusting the pH value to 5.0, heating to 65 ℃, preserving heat for 1.5 hours to form a shell layer on the periphery of the core, washing, drying at the temperature of 65 ℃ in vacuum to constant weight, and cooling to room temperature to obtain the core-shell type acrylic resin composition.
The air-permeable auxiliary agent is prepared by the following process: uniformly mixing 6 parts of seaweed meal, 8 parts of natural zeolite and 2 parts of sodium chloride solution with the mass fraction of 15%, stirring for 1h, filtering, dehydrating, drying, roasting at 550 ℃ for 0.5h, then placing in 7 parts of lanthanum chloride solution with the mass fraction of 15%, stirring for 3h, filtering, dehydrating, drying, then placing in 180 ℃ for roasting for 1.5h, then placing in 2 parts of silver nitrate solution with the mass fraction of 8%, stirring for 2h, and drying to obtain a material a; uniformly mixing 8 parts of titanium dioxide and 2 parts of N, N-dimethylacetamide, stirring at the rotating speed of 850r/min for 20min, heating to 85 ℃, preserving heat for 1h, introducing nitrogen, adding the material a and 8 parts of zinc oxide, uniformly mixing, stirring at the rotating speed of 450r/min for 14h, adding 2 parts of silane coupling agent KH-570, uniformly mixing, heating to 110 ℃, preserving heat for 5min, stirring at the rotating speed of 2500r/min for 10min, and cooling to room temperature to obtain a material b; uniformly mixing 8 parts of bentonite, 3 parts of kaolin, 5 parts of chitosan oligosaccharide, 1 part of sodium carbonate, 6 parts of chitosan and 1 part of fly ash, stirring at the rotation speed of 650r/min for 20min, drying at-50 ℃ for 20min in a freeze dryer, adding 8 parts of polyethylene glycol and 3 parts of glycolic acid, uniformly mixing, stirring at the rotation speed of 5500r/min for 10min, adding 8 parts of arabinoxylan, 2 parts of hyaluronic acid and a material b, uniformly mixing, heating to 80 ℃, preserving heat for 10min, centrifuging at the rotation speed of 12000r/min, collecting, washing with water, and freeze-drying to obtain the air-permeable assistant.
The invention also provides a preparation method of the water permeable brick prepared from the construction waste, which comprises the following steps: mixing and stirring the construction waste and the phosphate tailings for 1min, then adding brick red aggregate, uniformly mixing, drying at 140 ℃ for 4h, then crushing into 40-mesh particles, then adding the air-permeable auxiliary agent, the curing agent and water, uniformly mixing, pressing in a mold, and then curing by adopting a steam curing mode to obtain a finished brick.
Example 3
A water permeable brick prepared from construction waste comprises the following raw materials in parts by weight: 50 parts of construction waste, 25 parts of phosphate tailings, 25 parts of brick red aggregate, 8 parts of air-permeable auxiliary agent, 3 parts of curing agent, 2 parts of reinforcing agent and 3 parts of water.
The curing agent is prepared by the following process: uniformly mixing 12 parts of crosslinked polyacrylonitrile-styrene copolymer, 3 parts of polypropylene, 5 parts of potassium persulfate and 2 parts of polyaryl phosphate according to parts by weight, heating to 80 ℃, preserving heat for 2 hours to obtain a core, adding 8 parts of silane coupling agent KH-550, 3 parts of kieselguhr, 8 parts of sepiolite powder, 3 parts of nano aluminum hydroxide, 5 parts of antimony trioxide, 4 parts of zinc borate and 6 parts of aluminium polyphosphate into the core, uniformly mixing, stirring at the rotating speed of 850r/min for 10 minutes, adjusting the pH value to 5.0, heating to 65 ℃, preserving heat for 1.5 hours to form a shell layer on the periphery of the core, washing, drying at the temperature of 65 ℃ in vacuum to constant weight, and cooling to room temperature to obtain the core-shell type acrylic resin composition.
The air-permeable auxiliary agent is prepared by the following process: uniformly mixing 9 parts of seaweed meal, 4 parts of natural zeolite and 6 parts of sodium chloride solution with the mass fraction of 5%, stirring for 3 hours, filtering, dehydrating, drying, roasting at 450 ℃ for 1.5 hours, then placing in 4 parts of lanthanum chloride solution with the mass fraction of 35%, stirring for 1 hour, filtering, dehydrating, drying, then placing in 220 ℃ for roasting for 0.5 hour, then placing in 6 parts of silver nitrate solution with the mass fraction of 4%, stirring for 4 hours, and drying to obtain a material a; uniformly mixing 4 parts of titanium dioxide and 6 parts of N, N-dimethylacetamide, stirring at the rotating speed of 650r/min for 40min, heating to 75 ℃, preserving heat for 3h, introducing nitrogen, adding the material a and 4 parts of zinc oxide, uniformly mixing, stirring at the rotating speed of 550r/min for 10h, adding 6 parts of silane coupling agent KH-570, uniformly mixing, heating to 90 ℃, preserving heat for 15min, stirring at the rotating speed of 1500r/min for 20min, and cooling to room temperature to obtain a material b; uniformly mixing 4 parts of bentonite, 9 parts of kaolin, 2 parts of chitosan oligosaccharide, 4 parts of sodium carbonate, 3 parts of chitosan and 5 parts of fly ash, stirring at the rotating speed of 350r/min for 30min, drying at-30 ℃ for 40min in a freeze dryer, adding 4 parts of polyethylene glycol and 6 parts of glycolic acid, uniformly mixing, stirring at the rotating speed of 4500r/min for 20min, adding 4 parts of arabinoxylan, 6 parts of hyaluronic acid and a material b, uniformly mixing, heating to 70 ℃, preserving heat for 20min, centrifugally collecting at the rotating speed of 8500r/min, washing with water, and freeze-drying to obtain the air-permeable assistant.
The invention also provides a preparation method of the water permeable brick prepared from the construction waste, which comprises the following steps: mixing and stirring the construction waste and the phosphate tailings for 3min, adding brick red aggregate, uniformly mixing, drying at 120 ℃ for 8h, crushing into particles of 30 meshes, adding the air-permeable auxiliary agent, the curing agent and water, uniformly mixing, pressing in a mold, and performing steam curing to obtain a finished brick.
The above description should not be taken as limiting the invention to the embodiments, but rather, as will be apparent to those skilled in the art to which the invention pertains, numerous simplifications or substitutions may be made without departing from the spirit of the invention, which shall be deemed to fall within the scope of the invention as defined by the claims appended hereto.
Claims (7)
1. The water permeable brick prepared from the construction waste is characterized by comprising the following raw materials in parts by weight: 40-50 parts of construction waste, 25-35 parts of phosphate tailings, 15-25 parts of brick red aggregate, 8-12 parts of air-permeable auxiliary agent, 1-3 parts of curing agent and 1-3 parts of water.
2. The water permeable brick prepared by using the construction waste as claimed in claim 1, which is characterized by comprising the following raw materials in parts by weight: 45 parts of construction waste, 30 parts of phosphate tailings, 20 parts of brick red aggregate, 10 parts of air-permeable auxiliary agent, 2 parts of curing agent and 2 parts of water.
3. The water permeable brick prepared by using the construction waste as claimed in claim 1, wherein the curing agent comprises the following raw materials in parts by weight: 8-12 parts of crosslinked polyacrylonitrile-styrene copolymer, 1-5 parts of potassium persulfate, 2-5 parts of polyaryl phosphate, 3-6 parts of polypropylene, 4-8 parts of silane coupling agent KH-550, 3-9 parts of diatomite, 2-6 parts of aluminum polyphosphate, 4-8 parts of sepiolite powder, 3-9 parts of nano aluminum hydroxide, 2-5 parts of antimony trioxide and 4-8 parts of zinc borate.
4. The water permeable brick prepared by using the construction waste as claimed in claim 3, wherein the curing agent is prepared by the following process: uniformly mixing a crosslinked polyacrylonitrile-styrene copolymer, polypropylene, potassium persulfate and polyaryl phosphate, heating to 60-80 ℃, keeping the temperature for 2-4h to obtain a core, adding a silane coupling agent KH-550, diatomite, sepiolite powder, nano aluminum hydroxide, antimony trioxide, zinc borate and aluminum polyphosphate into the core, uniformly mixing, stirring at the rotation speed of 650 plus 850r/min for 10-30min, adjusting the pH value to 3.5-5.0, heating to 65-75 ℃, keeping the temperature for 0.5-1.5h to form a shell layer on the periphery of the core, washing, drying in vacuum at 65-75 ℃ to constant weight, and cooling to room temperature to obtain a curing agent.
5. The water permeable brick prepared by using the construction waste as claimed in claim 1, wherein the air permeable auxiliary comprises the following raw materials in parts by weight: 6-9 parts of seaweed meal, 4-8 parts of natural zeolite, 2-6 parts of a sodium chloride solution with the mass fraction of 5-15%, 4-7 parts of a lanthanum chloride solution with the mass fraction of 15-35%, 2-6 parts of a silver nitrate solution with the mass fraction of 4-8%, 4-8 parts of titanium dioxide, 2-6 parts of N, N-dimethylacetamide, 4-8 parts of zinc oxide, 4-6 parts of a silane coupling agent KH-5702-6 parts, 4-8 parts of bentonite, 3-9 parts of kaolin, 2-5 parts of chitosan oligosaccharide, 1-4 parts of sodium carbonate, 3-6 parts of chitosan, 1-5 parts of fly ash, 4-8 parts of polyethylene glycol, 3-6 parts of glycolic acid, 4-8 parts of araboxylan and 2-6 parts of hyaluronic acid.
6. The water permeable brick prepared by using the construction waste as claimed in claim 5, wherein the air permeable auxiliary agent is prepared by the following process: mixing seaweed powder, natural zeolite and 5-15% sodium chloride solution uniformly, stirring for 1-3h, filtering, dehydrating, drying, roasting at 550 ℃ of 450-; uniformly mixing titanium dioxide and N, N-dimethylacetamide, stirring at the rotation speed of 850r/min of 650-; the method comprises the steps of uniformly mixing bentonite, kaolin, chitosan oligosaccharide, sodium carbonate, chitosan and fly ash, stirring at the rotation speed of 650r/min for 20-30min, drying in a freeze dryer at-30 to-50 ℃ for 20-40min, adding polyethylene glycol and glycolic acid, uniformly mixing, stirring at the rotation speed of 4500 + 5500r/min for 10-20min, adding arabinoxylan, hyaluronic acid and a material b, uniformly mixing, heating to 70-80 ℃, preserving heat for 10-20min, centrifuging at the rotation speed of 8500 + 12000r/min, collecting, washing, and freeze-drying to obtain the air-permeable assistant.
7. A method for preparing the water permeable brick prepared by the construction waste according to any one of claims 1 to 6, which comprises the following steps: mixing and stirring the construction waste and the phosphate tailings for 1-3min, adding brick red aggregate, uniformly mixing, drying at the temperature of 120-140 ℃ for 4-8h, crushing into particles of 30-40 meshes, adding the air-permeable auxiliary agent, the curing agent and water, uniformly mixing, pressing in a mold, and performing steam curing to obtain a finished brick.
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Application publication date: 20201211 |