CN115594459B - Environment-friendly water permeable brick for sidewalk and preparation method thereof - Google Patents
Environment-friendly water permeable brick for sidewalk and preparation method thereof Download PDFInfo
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- CN115594459B CN115594459B CN202211186749.0A CN202211186749A CN115594459B CN 115594459 B CN115594459 B CN 115594459B CN 202211186749 A CN202211186749 A CN 202211186749A CN 115594459 B CN115594459 B CN 115594459B
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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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/225—Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C15/00—Pavings specially adapted for footpaths, sidewalks or cycle tracks
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C5/00—Pavings made of prefabricated single units
- E01C5/04—Pavings made of prefabricated single units made of bricks
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a pavement environment-friendly water permeable brick and a preparation method thereof. The preparation method does not need high-temperature calcination, and has low production cost and simple production process. The produced environment-friendly water permeable brick has high strength and good water permeability, can absorb part of infrared rays, so that the heat in the air is reduced, the urban heat island effect is effectively relieved, and further, the soil can be protected.
Description
Technical Field
The invention belongs to the field of building materials, and particularly relates to an environment-friendly water permeable brick for sidewalks and a preparation method thereof.
Background
With the continuous development of urban construction in China, pavement bricks are required to be paved on urban sidewalks, and water permeable bricks are mostly paved in order to solve the problem that rainwater on urban hardened pavement cannot permeate into the ground surface. However, the quality of the water permeable bricks on the market at present is mostly uneven, and some water permeable bricks have good water permeability, but the compressive strength does not reach the standard. Such as: the unavoidable vehicles on the urban sidewalk run, which is a great test for the service life of the water permeable bricks.
The atmospheric pollution in urban construction is mostly related to the combustion of coal and the emission of motor vehicle exhaust, so that acid rain is inevitably generated. The acid rain causes the floor tile to dissolve, cracks appear, and the strength is reduced, thereby the floor tile is damaged. Meanwhile, acid rain can accelerate the loss of nutrient substances in soil. This is a problem we have been studying to solve.
In addition, the temperature of the whole city in the urban construction is increased, especially in summer high-temperature weather, so that the somatosensory temperature is increased. Therefore, how to make the paved water permeable bricks effectively alleviate the urban heat island effect is also an urgent problem to be solved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a pavement environment-friendly water permeable brick and a preparation method thereof. The environment-friendly water permeable brick does not need high-temperature calcination, has low production cost and simple production process, solves the problem of single performance of the existing water permeable brick, utilizes waste ceramic as a resource, changes waste into valuable, and effectively relieves urban heat island effect.
The technical scheme of the invention is realized as follows:
the environment-friendly water permeable brick for the sidewalk consists of, by weight, 21-43 parts of fly ash, 13-18 parts of cement and 45-70 parts of waste ceramic powder on a dry basis.
The waste ceramic powder is waste materials of inferior quality produced in the production process of zirconia ceramic enterprises, and is crushed and ground into waste ceramic powder with the particle size of 4mm-6mm after being recovered, and the bulk density is 1.8-2.1t/m 3 . Wherein the zirconium dioxide accounts for 5-10% of the waste ceramic powder in mass percent, and the silicon dioxide accounts for 40-55% of the waste ceramic powder in mass percent; the alumina accounts for 15-20% of the waste ceramic powder by mass; the potassium silicate accounts for 5-10% of the waste ceramic powder by mass. The waste ceramic having such a composition is selected and ground into powder, because the strength and water permeability of the water permeable brick can be improved.
The zirconium dioxide in the zirconium dioxide waste ceramic can absorb a part of infrared rays, so that the heat in the air is reduced, and the temperature of the sense of body is reduced. On one hand, the potassium silicate acts as a binder when the water permeable brick is prepared, and other auxiliary materials such as the binder, the solvent and the like are not required to be added; on the other hand, long-term rainfall is accumulated, partial potassium silicate in the water permeable brick neutralizes acid rain, so that the harm of the acid rain to soil is reduced, and meanwhile, the water permeability and strength of the brick can be increased.
The fly ash is ash particles generated by fuel used for ceramic enterprises or power generation enterprises, the fineness of the fly ash is 45 mu m square hole sieve residue of not more than 45%, and preferably, the 45 mu m square hole sieve residue of not more than 12%. The addition of the fly ash ensures that the cement and the waste ceramic powder are dispersed more uniformly, so that the strength of the water permeable brick is higher.
The cement is silicate cement clinker with specific surface area of 450-480m 2 And/kg, wherein the mass fraction of calcium silicate is more than or equal to 70%, and the mass ratio of calcium oxide to silicon oxide is more than or equal to 2. The cement has the functions of an active excitant and a binder, so that the strength of the water permeable brick is further improved due to the synergistic effect of the components of the cement, waste ceramic and the components in the fly ash.
The materials used above: the cement is directly purchased, and the waste ceramic and the fly ash are obtained from zirconium dioxide ceramic enterprises, and are obtained locally, so that the zirconium dioxide ceramic and the environment-friendly water permeable bricks can be produced simultaneously, and the economic benefit of the ceramic enterprises can be increased.
Preferably, the pavement environment-friendly water permeable brick consists of, by weight, 30-40 parts of fly ash, 15-18 parts of cement and 45-50 parts of waste ceramic powder on a dry basis.
The preparation method of the environment-friendly water permeable brick comprises the following specific steps:
(1) Mixing fly ash, cement and waste ceramic powder according to a proportion, adding water, and stirring by a double-shaft stirrer to obtain a mixture;
(2) And (3) sending the mixture obtained in the step (1) into a die, pressing and forming by a hydraulic brick press, curing for 24 hours at the temperature of 20-35 ℃ and the humidity of 50%, demolding, and curing for 2-5 days at the temperature of 20-35 ℃ to obtain the environment-friendly water permeable brick.
The amount of the added water in the step (1) accounts for 5-8% of the weight of the mixture. Therefore, the water permeable brick can reach enough strength on the premise of ensuring other performances.
The biaxial stirrer in the step (1) is commercial equipment, and the stirring process conditions are that the temperature is between 25 and 30 ℃, and the stirring speed is 85 to 90rpm/min for 5 to 10 minutes to obtain the mixture.
The hydraulic brick press in the step (2) is a double-sided pressurized hydraulic brick press and is commercial equipment. The pressure of the hydraulic brick press is 30MPa-31.5MPa, and the size of the water permeable brick is 200mm multiplied by 100mm multiplied by 60mm. Various properties of bricks of this specification are best produced at such pressures.
The pavement environment-friendly water permeable brick is prepared by mixing fly ash, cement and waste ceramic powder without adding other auxiliary materials such as a binder, a solvent and the like, adding a certain amount of water, stirring, mixing, pressing and curing. The preparation method does not need high-temperature calcination, and has low production cost and simple production process. The produced environment-friendly water permeable brick has high strength and good water permeability, can absorb part of infrared rays, so that the heat in the air is reduced, the urban heat island effect is effectively relieved, and further, the soil can be protected.
Detailed Description
Example 1
A certain zirconia ceramic manufacturer has a batch of waste materials, and is ground into ceramic powder with the particle size of 4mm-6mm and the bulk density of 1.8-2.1t/m 3 The composition contains 8% of zirconium dioxide, 50% of silicon dioxide, 20% of aluminum oxide, 10% of potassium silicate and 12% of other substances by adopting an X-ray fluorescence spectrometry.
The environment-friendly water permeable brick for the sidewalk consists of 35 parts of fly ash, 18 parts of cement and 45 parts of waste ceramic powder in parts by weight on a dry basis.
The fineness of the fly ash is 45 mu m, and the square hole sieve allowance is not more than 12%.
The cement is silicate cement clinker with a specific surface area of 460m 2 And/kg, wherein the mass fraction of calcium silicate is 80%, and the mass ratio of calcium oxide to silicon oxide is 3.
The preparation method of the environment-friendly water permeable brick comprises the following specific steps:
(1) Mixing fly ash, cement and waste ceramic powder according to a proportion, adding water, and stirring by a double-shaft stirrer to obtain a mixture;
(2) And (3) sending the mixture obtained in the step (1) into a die, pressing and forming by a hydraulic brick press, curing for 24 hours at the temperature of 25 ℃ and the humidity of 50%, demolding, and curing for 5 days at the temperature of 25 ℃ to obtain the environment-friendly water permeable brick.
The amount of the added water in the step (1) accounts for 7 percent of the weight of the mixture.
The temperature during stirring in the step (1) is 26 ℃, and stirring is carried out at a speed of 90rpm/min for 8 minutes to obtain a mixture.
The pressure of the hydraulic brick press in the step (2) is 31.5MPa, and the obtained water permeable bricks have the dimensions of 200mm multiplied by 100mm multiplied by 60mm.
Example 2
A certain zirconia ceramic manufacturer has a batch of waste materials, and is ground into ceramic powder with the particle size of 4mm-6mm and the bulk density of 1.8-2.1t/m 3 The composition contains 5% of zirconium dioxide, 40% of silicon dioxide and oxidation by X-ray fluorescence spectrometry15% of aluminum, 7% of potassium silicate and 33% of other substances.
The environment-friendly water permeable brick for the sidewalk consists of, by weight, 30 parts of fly ash, 13 parts of cement and 50 parts of waste ceramic powder on a dry basis.
The fineness of the fly ash is 45 mu m, and the square hole sieve allowance is not more than 12%.
The cement is silicate cement clinker with specific surface area of 450m 2 And/kg, wherein the mass fraction of calcium silicate is 77%, and the mass ratio of calcium oxide to silicon oxide is 2.
The preparation method of the environment-friendly water permeable brick comprises the following specific steps:
(1) Mixing fly ash, cement and waste ceramic powder according to a proportion, adding water, and stirring by a double-shaft stirrer to obtain a mixture;
(2) And (3) sending the mixture obtained in the step (1) into a die, pressing and forming by a hydraulic brick press, curing for 24 hours at the temperature of 20 ℃ and the humidity of 50%, demolding, and curing for 4 days at the temperature of 35 ℃ to obtain the environment-friendly water permeable brick.
The amount of the added water in the step (1) accounts for 5% of the weight of the mixture.
The temperature during stirring in the step (1) is 30 ℃, and stirring is carried out at a speed of 85rpm/min for 10 minutes to obtain a mixture.
The pressure of the hydraulic brick press in the step (2) is 30MPa, and the obtained water permeable bricks have the dimensions of 200mm multiplied by 100mm multiplied by 60mm.
Example 3
A certain zirconia ceramic manufacturer has a batch of waste materials, and is ground into ceramic powder with the particle size of 4mm-6mm and the bulk density of 1.8-2.1t/m 3 The composition was found to contain 10% of zirconium dioxide, 55% of silicon dioxide, 18% of aluminum oxide, 5% of potassium silicate and 12% of other substances by X-ray fluorescence spectrometry.
The environment-friendly water permeable brick for the sidewalk consists of 21 parts of fly ash, 15 parts of cement and 70 parts of waste ceramic powder in parts by weight on a dry basis.
The fineness of the fly ash is 45 mu m, and the square hole sieve allowance is not more than 45%.
The cement is silicate cement clinker with specific surface area of 480m 2 And/kg, wherein the mass fraction of calcium silicate is 73%, and the mass ratio of calcium oxide to silicon oxide is 3.
The preparation method of the environment-friendly water permeable brick comprises the following specific steps:
(1) Mixing fly ash, cement and waste ceramic powder according to a proportion, adding water, and stirring by a double-shaft stirrer to obtain a mixture;
(2) And (3) sending the mixture obtained in the step (1) into a die, pressing and forming by a hydraulic brick press, curing for 24 hours at 35 ℃ and 50% humidity, demolding, and curing for 2 days at 35 ℃ to obtain the environment-friendly water permeable brick.
The amount of the added water in the step (1) accounts for 8% of the weight of the mixture.
The temperature during stirring in the step (1) is 25 ℃, and stirring is carried out at a speed of 88rpm/min for 8 minutes to obtain a mixture.
The pressure of the hydraulic brick press in the step (2) is 30MPa, and the obtained water permeable bricks have the dimensions of 200mm multiplied by 100mm multiplied by 60mm.
Example 4
A certain zirconia ceramic manufacturer has a batch of waste materials, and is ground into ceramic powder with the particle size of 4mm-6mm and the bulk density of 1.8-2.1t/m 3 The composition was found to contain 6% of zirconium dioxide, 45% of silicon dioxide, 16% of aluminum oxide, 8% of potassium silicate and 25% of other substances by X-ray fluorescence spectrometry.
The environment-friendly water permeable brick for the sidewalk consists of 40 parts of fly ash, 16 parts of cement and 60 parts of waste ceramic powder in parts by weight on a dry basis.
The fineness of the fly ash is 45 mu m, and the square hole sieve allowance is not more than 45%.
The cement is silicate cement clinker with specific surface area of 450m 2 And/kg, wherein the mass fraction of the calcium silicate is 70%, and the mass ratio of the calcium oxide to the silicon oxide is 2.5.
The preparation method of the environment-friendly water permeable brick comprises the following specific steps:
(1) Mixing fly ash, cement and waste ceramic powder according to a proportion, adding water, and stirring by a double-shaft stirrer to obtain a mixture;
(2) And (3) sending the mixture obtained in the step (1) into a die, pressing and forming by a hydraulic brick press, curing for 24 hours at the temperature of 20 ℃ and the humidity of 50%, demolding, and curing for 5 days at the temperature of 30 ℃ to obtain the environment-friendly water permeable brick.
The amount of the added water in the step (1) accounts for 6% of the weight of the mixture.
The temperature during stirring in the step (1) is 26 ℃, and stirring is carried out at a speed of 90rpm/min for 5 minutes to obtain a mixture.
The pressure of the hydraulic brick press in the step (2) is 31MPa, and the obtained water permeable bricks have the dimensions of 200mm multiplied by 100mm multiplied by 60mm.
Example 5
A certain zirconia ceramic manufacturer has a batch of waste materials, and is ground into ceramic powder with the particle size of 4mm-6mm and the bulk density of 1.8-2.1t/m 3 The composition was found to contain 9% of zirconium dioxide, 42% of silicon dioxide, 20% of aluminum oxide, 6% of potassium silicate and 23% of other substances by X-ray fluorescence spectrometry.
The environment-friendly water permeable brick for the sidewalk consists of 43 parts of fly ash, 14 parts of cement and 55 parts of waste ceramic powder in parts by weight on a dry basis.
The fineness of the fly ash is 45 mu m, and the square hole sieve allowance is not more than 12%.
The cement is silicate cement clinker with specific surface area of 470m 2 And/kg, wherein the mass fraction of calcium silicate is 81%, and the mass ratio of calcium oxide to silicon oxide is 2.
The preparation method of the environment-friendly water permeable brick comprises the following specific steps:
(1) Mixing fly ash, cement and waste ceramic powder according to a proportion, adding water, and stirring by a double-shaft stirrer to obtain a mixture;
(2) And (3) sending the mixture obtained in the step (1) into a die, pressing and forming by a hydraulic brick press, curing for 24 hours at the temperature of 25 ℃ and the humidity of 50%, demolding, and curing for 5 days at the temperature of 25 ℃ to obtain the environment-friendly water permeable brick.
The amount of the added water in the step (1) accounts for 8% of the weight of the mixture.
The temperature during stirring in the step (1) is 30 ℃, and stirring is carried out at a speed of 85rpm/min for 5 minutes to obtain a mixture.
The pressure of the hydraulic brick press in the step (2) is 31MPa, and the obtained water permeable bricks have the dimensions of 200mm multiplied by 100mm multiplied by 60mm.
The prepared environment-friendly water permeable bricks are subjected to performance test by referring to water permeable pavement bricks and water permeable pavement boards (GB/T25993-2010), and through a large number of experiments, examples 1-5 are preferably obtained, and the results are shown in the following table:
from the test results of the table, the performance of the environment-friendly water permeable brick prepared in the embodiment 1 is optimal. The water permeable bricks with different specifications are prepared according to the proportion in the embodiment 1, and when the pressure of a hydraulic brick press is 31MPa and the size of the water permeable bricks is 200mm multiplied by 100mm multiplied by 60mm, the various performances of the water permeable bricks are best.
Claims (4)
1. The utility model provides a pavement environmental protection water brick which characterized in that: the cement comprises, by weight, 21-43 parts of fly ash, 13-18 parts of cement and 45-70 parts of waste ceramic powder on a dry basis;
the particle size of the waste ceramic powder is 4mm-6mm, and the bulk density is 1.8-2.1t/m 3 ；
The mass fraction of zirconium dioxide in the waste ceramic powder is 5% -10%, and the mass fraction of silicon dioxide is 40% -55%; 15-20% of alumina by mass fraction; the mass fraction of the potassium silicate is 5% -10%;
the fineness of the fly ash is 45 mu m, and the square hole screen allowance is not more than 45%;
the cement is silicate cement clinker with specific surface area of 450-480m 2 /kg；
The mass fraction of calcium silicate in the cement is more than or equal to 70%, and the mass ratio of calcium oxide to silicon oxide is more than or equal to 2.
2. The pavement environmental protection water permeable brick according to claim 1, characterized in that: the cement mortar consists of the following components in parts by weight, based on dry basis, 30-40 parts of fly ash, 15-18 parts of cement and 45-50 parts of waste ceramic powder.
3. The method for preparing the environment-friendly water permeable brick as claimed in claim 1 or 2, which is characterized in that: the method comprises the following specific steps:
(1) Mixing fly ash, cement and waste ceramic powder according to a proportion, adding water, and stirring by a double-shaft stirrer to obtain a mixture;
(2) Delivering the mixture obtained in the step (1) into a die, pressing and forming by a hydraulic brick press, curing for 24 hours at 20-35 ℃ and 50% humidity, demolding, and curing for 2-5 days at 20-35 ℃ to obtain the environment-friendly water permeable brick;
the amount of the added water in the step (1) accounts for 5-8% of the weight of the mixture;
the temperature during stirring in the step (1) is 25-30 ℃, and stirring is carried out for 5-10 minutes at the speed of 85-90rpm/min to obtain a mixture;
the pressure of the hydraulic brick press in the step (2) is 30MPa-31.5MPa.
4. The method for preparing the environment-friendly water permeable brick according to claim 3, which is characterized in that: the size of the water permeable brick obtained in the step (2) is 200mm multiplied by 100mm multiplied by 60mm.
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| CN115594459B true CN115594459B (en) | 2023-09-05 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102372468A (en) * | 2010-08-26 | 2012-03-14 | 丘华彪 | Novel environmentally-friendly ceramic permeable brick and preparation method thereof |
| CN110423063A (en) * | 2019-07-08 | 2019-11-08 | 武汉来道建材科技有限公司 | A kind of imitation stone lightweight porous disc and preparation method thereof |
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- 2022-09-27 CN CN202211186749.0A patent/CN115594459B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102372468A (en) * | 2010-08-26 | 2012-03-14 | 丘华彪 | Novel environmentally-friendly ceramic permeable brick and preparation method thereof |
| CN110423063A (en) * | 2019-07-08 | 2019-11-08 | 武汉来道建材科技有限公司 | A kind of imitation stone lightweight porous disc and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 林杰，中国纺织出版社.《染整技术 第4册》.2005,(第1版),第204-205页. * |
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