CN111925168A - Crack-free environment-friendly brick and preparation method thereof - Google Patents
Crack-free environment-friendly brick and preparation method thereof Download PDFInfo
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- CN111925168A CN111925168A CN202010780287.XA CN202010780287A CN111925168A CN 111925168 A CN111925168 A CN 111925168A CN 202010780287 A CN202010780287 A CN 202010780287A CN 111925168 A CN111925168 A CN 111925168A
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- parts
- tailings
- crack
- liquid admixture
- free environment
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1055—Coating or impregnating with inorganic materials
- C04B20/1074—Silicates, e.g. glass
-
- 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
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The application discloses crackless environment-friendly brick, its raw materials include by weight: 40-50 parts of copper tailings, 25-35 parts of phosphorus tailings, 15-25 parts of construction solid waste broken stones and gravels, 8-12 parts of 425# ordinary portland cement, 1-3 parts of liquid admixture and 1-3 parts of water. The invention also provides a preparation method of the crack-free environment-friendly brick. The two kinds of tailings and stone powder are stirred, cement is added and stirred, and then the liquid admixture is added and stirred, so that the pressing can be carried out. The two tailings are fine and smooth and are easy to be dispersed after meeting water, so that the curing time is relatively prolonged after the pressing forming, and the tailings can enter a water immersion wetting process. The surface of the formed product has no obvious cracks, the structure is compact, and the appearance meets the production standard. The compression resistance is 26.7 MP.
Description
Technical Field
The invention belongs to the technical field of environment-friendly materials, and particularly relates to a crack-free environment-friendly brick and a preparation method thereof.
Background
The novel wall material which is manufactured by using fly ash, coal cinder, coal gangue, tailing slag, chemical slag or natural sand, tidal marsh mud, industrial waste, waste incineration slag and the like (one or more than one of the raw materials) as main raw materials without high-temperature calcination is called as an environment-friendly brick.
The environment-friendly brick in the prior art has poor heat resistance and cannot meet the requirements in practical use, so that the problem in the prior art needs to be solved by developing a crack-free environment-friendly brick urgently.
Disclosure of Invention
The invention aims to provide a crack-free environment-friendly brick and a preparation method thereof.
In order to solve the technical problems, the invention adopts the following technical scheme:
the crack-free environment-friendly brick comprises the following raw materials in parts by weight: 40-50 parts of copper tailings, 25-35 parts of phosphorus tailings, 15-25 parts of construction solid waste broken stones and gravels, 8-12 parts of 425# ordinary portland cement, 1-3 parts of liquid admixture and 1-3 parts of water.
Preferably, 45 parts of copper tailings, 30 parts of phosphate tailings, 20 parts of construction solid waste broken stones and gravels, 10 parts of 425# ordinary portland cement, 2 parts of liquid admixture and 2 parts of water.
Preferably, the liquid admixture 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 liquid admixture 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 the liquid admixture.
The invention also provides a preparation method of the crack-free environment-friendly brick, which comprises the following steps: mixing and stirring the copper tailings and the phosphorus tailings for 1-3min, adding the construction solid waste crushed stones and the crushed stones, uniformly mixing, drying at the temperature of 120-140 ℃ for 4-8h, then crushing into particles of 30-40 meshes, then adding 425# ordinary portland cement, a liquid admixture and water, uniformly mixing, pressing in a mold, and then adopting a steam curing mode to obtain a finished brick.
The invention has the following beneficial effects: the two kinds of tailings and stone powder are stirred, cement is added and stirred, and then the liquid admixture is added and stirred, so that the pressing can be carried out. The two tailings are fine and smooth and are easy to be dispersed after meeting water, so that the curing time is relatively prolonged after the pressing forming, and the tailings can enter a water immersion wetting process. The surface of the formed product has no obvious cracks, the structure is compact, and the appearance meets the production standard. The compression resistance is 26.7 MP.
The liquid admixture is prepared by taking a cross-linked polyacrylonitrile-styrene copolymer and polyaryl phosphate as raw materials and potassium persulfate as an initiator, a core is prepared, then a silane coupling agent KH-550 is taken as a connecting intermediate between the core and a shell, so that diatomite, sepiolite powder, nano aluminum hydroxide, antimony trioxide, zinc borate and aluminium polyphosphate are connected to the periphery of the core through the silane coupling agent KH-550 to form the shell, the diatomite, the sepiolite powder, the nano aluminum hydroxide, the antimony trioxide, the zinc borate and the aluminium polyphosphate are all refractory fillers, on one hand, the liquid admixture has good flame retardant effect on the periphery of the core, and simultaneously, the prepared liquid admixture has smaller surface area of the granulated liquid admixture, and in a reinforcing system, the silsesquioxane can further connect the liquid admixture to the periphery of polycarbonate, the granular liquid admixture with smaller surface area can be more uniformly distributed on the outer surface of the polycarbonate, so that the polycarbonate forms a grid structure, and in the grid structure, the silsesquioxane can also connect the white carbon black and the organic matter modified montmorillonite to the polycarbonate, thereby effectively improving the flame retardant property of the environment-friendly brick.
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 crack-free environment-friendly brick comprises the following raw materials in parts by weight: 40-50 parts of copper tailings, 25-35 parts of phosphorus tailings, 15-25 parts of construction solid waste broken stones and gravels, 8-12 parts of 425# ordinary portland cement, 1-3 parts of liquid admixture and 1-3 parts of water.
The liquid admixture 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 invention also provides a preparation method of the crack-free environment-friendly brick, which comprises the following steps: mixing and stirring the copper tailings and the phosphorus tailings for 1-3min, adding the construction solid waste crushed stones and the crushed stones, uniformly mixing, drying at the temperature of 120-140 ℃ for 4-8h, then crushing into particles of 30-40 meshes, then adding 425# ordinary portland cement, a liquid admixture and water, uniformly mixing, pressing in a mold, and then adopting a steam curing mode to obtain a finished brick.
Example 1
The crack-free environment-friendly brick comprises the following raw materials in parts by weight: 45 parts of copper tailings, 30 parts of phosphorus tailings, 20 parts of construction solid waste broken stones and gravels, 10 parts of 425# ordinary portland cement, 2 parts of liquid admixture and 2 parts of water.
The liquid admixture 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 invention also provides a preparation method of the crack-free environment-friendly brick, which comprises the following steps: mixing and stirring copper tailings and phosphorus tailings for 2min, adding construction solid waste crushed stones and crushed stones, uniformly mixing, drying at 130 ℃ for 6h, then crushing into particles of 35 meshes, then adding 425# ordinary portland cement, a liquid admixture and water, uniformly mixing, pressing in a mold, and then performing steam curing to obtain a finished brick.
Example 2
The crack-free environment-friendly brick comprises the following raw materials in parts by weight: 40 parts of copper tailings, 35 parts of phosphorus tailings, 15 parts of construction solid waste broken stones and gravels, 12 parts of 425# ordinary portland cement, 1 part of liquid admixture and 3 parts of water.
The liquid admixture 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 invention also provides a preparation method of the crack-free environment-friendly brick, which comprises the following steps: mixing and stirring the copper tailings and the phosphorus tailings for 1min, adding the construction solid waste crushed stones and the crushed stones, uniformly mixing, drying at 140 ℃ for 4h, then crushing into 40-mesh particles, then adding 425# ordinary portland cement, a liquid admixture and water, uniformly mixing, pressing in a mold, and then performing steam curing to obtain a finished brick.
Example 3
The crack-free environment-friendly brick comprises the following raw materials in parts by weight: 50 parts of copper tailings, 25 parts of phosphorus tailings, 25 parts of construction solid waste broken stones and gravels, 8 parts of 425# ordinary portland cement, 3 parts of liquid admixture, 2 parts of reinforcing agent and 3 parts of water.
The liquid admixture 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 invention also provides a preparation method of the crack-free environment-friendly brick, which comprises the following steps: mixing and stirring the copper tailings and the phosphorus tailings for 3min, adding the construction solid waste crushed stones and the crushed stones, uniformly mixing, drying at 120 ℃ for 8h, then crushing into particles of 30 meshes, then adding 425# ordinary portland cement, a liquid admixture and water, uniformly mixing, pressing in a mold, and then adopting a steam curing mode 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 (5)
1. The crack-free environment-friendly brick is characterized by comprising the following raw materials in parts by weight: 40-50 parts of copper tailings, 25-35 parts of phosphorus tailings, 15-25 parts of construction solid waste broken stones and gravels, 8-12 parts of 425# ordinary portland cement, 1-3 parts of liquid admixture and 1-3 parts of water.
2. The crack-free environment-friendly brick as claimed in claim 1, wherein the brick comprises 45 parts of copper tailings, 30 parts of phosphate tailings, 20 parts of construction solid waste broken stones and gravels, 10 parts of 425# Portland cement, 2 parts of liquid admixture and 2 parts of water.
3. The crack-free environment-friendly brick as claimed in claim 1, wherein the liquid admixture 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 crack-free environment-friendly brick according to claim 3, wherein the liquid admixture 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 the liquid admixture.
5. The method for preparing the crack-free environment-friendly brick as claimed in any one of claims 1 to 4, wherein the crack-free environment-friendly brick is prepared by the following process: mixing and stirring the copper tailings and the phosphorus tailings for 1-3min, adding the construction solid waste crushed stones and the crushed stones, uniformly mixing, drying at the temperature of 120-140 ℃ for 4-8h, then crushing into particles of 30-40 meshes, then adding 425# ordinary portland cement, a liquid admixture and water, uniformly mixing, pressing in a mold, and then adopting a steam curing mode to obtain a finished brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010780287.XA CN111925168A (en) | 2020-08-05 | 2020-08-05 | Crack-free environment-friendly brick and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010780287.XA CN111925168A (en) | 2020-08-05 | 2020-08-05 | Crack-free environment-friendly brick and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111925168A true CN111925168A (en) | 2020-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010780287.XA Withdrawn CN111925168A (en) | 2020-08-05 | 2020-08-05 | Crack-free environment-friendly brick and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111925168A (en) |
-
2020
- 2020-08-05 CN CN202010780287.XA patent/CN111925168A/en not_active Withdrawn
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Application publication date: 20201113 |