CN111763037A - Water permeable brick for urban road paving and preparation method thereof - Google Patents
Water permeable brick for urban road paving and preparation method thereof Download PDFInfo
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- CN111763037A CN111763037A CN201910259412.XA CN201910259412A CN111763037A CN 111763037 A CN111763037 A CN 111763037A CN 201910259412 A CN201910259412 A CN 201910259412A CN 111763037 A CN111763037 A CN 111763037A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 239000011449 brick Substances 0.000 title claims abstract description 80
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000002893 slag Substances 0.000 claims abstract description 37
- 239000000843 powder Substances 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 22
- 238000002156 mixing Methods 0.000 claims abstract description 20
- 238000003756 stirring Methods 0.000 claims abstract description 14
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 6
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract 8
- 229910052742 iron Inorganic materials 0.000 claims abstract 4
- 239000003292 glue Substances 0.000 claims abstract 3
- 239000012190 activator Substances 0.000 claims description 26
- 239000003513 alkali Substances 0.000 claims description 26
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- 238000010276 construction Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 239000004568 cement Substances 0.000 claims description 10
- 235000019353 potassium silicate Nutrition 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 8
- 239000002910 solid waste Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000002699 waste material Substances 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 239000012466 permeate Substances 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims 1
- 239000004576 sand Substances 0.000 claims 1
- 230000035699 permeability Effects 0.000 abstract description 4
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 description 11
- 239000004567 concrete Substances 0.000 description 8
- 239000010881 fly ash Substances 0.000 description 6
- 239000004575 stone Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910000720 Silicomanganese Inorganic materials 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000010438 granite Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 229920005594 polymer fiber Polymers 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 241000895503 Metrosideros Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000011465 paving brick Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
- C04B28/006—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 mineral polymers, e.g. geopolymers of the Davidovits type
-
- 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
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
Landscapes
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Engineering & Computer Science (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
The invention relates to a permeable material, in particular to a high-strength permeable brick for urban road pavement and a preparation method thereof. The water permeable brick is prepared by stirring and mixing active slag powder, iron tailing slag, rare earth inorganic mineral glue and a rare earth additive and then preparing the high-strength water permeable brick paved on urban roads by a special brick making machine. The high-strength water permeable brick has the following characteristics: the compressive strength can reach 11.5MPa within 10 hours, the breaking strength can reach 3-3.5MPa, and the water permeability coefficient can reach 1.2-2.0 mm/s.
Description
Technical Field
The invention relates to a water permeable material, in particular to a water permeable brick for paving urban roads and a preparation method thereof.
Background
Due to the development of economy, the scale and the area of cities are increasingly expanded, and modern urban roads including most open spaces of urban areas are hardened ground by concrete and cement; because the estimation of the environmental deterioration influence caused by urban road hardening is insufficient, the problems caused by urban hardened ground are increased day by day, when rainwater meets the hardened ground, the rainwater flows across all places and takes away a large amount of urban pollutants, and the pollutants are discharged into a local natural water system, so that the pollution of rivers and lakes is caused; on the other hand, the hardened pavement can not make rainwater and snow water effectively permeate into the ground, so that the underground water is reduced, the ground is sunken, the water content of the soil is low, the growth of flowers, plants and trees is inhibited, and the ecological environment is damaged. Meanwhile, the impervious pavement also blocks the exchange of water vapor and heat energy between the ground and the underground, so that the local temperature of the city is raised, and a 'heat island effect' is formed.
The permeable brick is a paving brick capable of permeating water, is used as a novel environment material capable of relieving urban environment deterioration pressure, can enable accumulated water caused by urban rainwater and other reasons on the road surface to smoothly go down due to good water permeability, reduces the influence of road surface runoff, effectively recovers a surface water circulation system, and can play a role in urban noise reduction due to the large porosity of the permeable brick. The water permeable brick has multiple functions of controlling pollution, improving ecological environment and the like, and the research and development and application of the water permeable brick are more and more concerned and favored by all parties in recent years.
At present, the water permeable bricks seen in the market can be divided into two categories from the material and production process. A kind of building decoration material which is made by using solid industrial waste, domestic garbage and construction waste as main raw materials and through crushing, forming and high-temperature firing, has the water permeable brick performance and accords with the water permeable brick standard is called ceramic water permeable brick; the other kind is a building decoration material which is formed by taking inorganic non-metallic materials as main raw materials and utilizing organic or inorganic binders through forming and curing, has the performance of water permeable bricks and meets the standards of the water permeable bricks. Since it does not need to be fired, we call it a non-ceramic water permeable brick.
According to the functional classification, the water permeable bricks can be divided into the following types: (1) common water permeable bricks: the porous concrete material made of common macadam is pressed and formed, is used for pedestrian footpaths and squares in common blocks, and is a product for general pavement; (2) polymer fiber concrete permeable brick: the material is granite aggregate, high-strength cement and cement polymer reinforcing agent, polypropylene fiber is blended, the feeding proportion is tight, and the mixture is pressed and formed after being stirred, so that the material is mainly used for paving places such as sidewalks, squares, parking lots and the like of municipal works, important projects and residential districts;
(3) the color stone composite concrete permeable brick comprises the following steps: the surface layer of the product is natural colored granite, marble and modified epoxy resin are glued, and then the product is pressed and compounded with polymer fiber porous concrete of the bottom layer to form, the surface layer of the product is gorgeous and natural color, has the texture common with stone, has the strength higher than that of the stone and the cost slightly higher than that of concrete permeable bricks after being compounded with the concrete, has the price of 1/2 of stone floor tiles, is an economic and high-grade floor product, and is mainly used in places such as luxury commercial areas, large squares, hotel parking lots, high-grade villa districts and the like; (4) colored stone epoxy through body permeable brick: the aggregate is natural color stone glued with imported modified epoxy resin, and is formed by special process, the product can be prefabricated, can be cast on site, and can be spliced into various artistic patterns and color lines, thereby providing a pleasant feeling for people. The method is mainly used for landscape engineering and high-grade villa communities.
In Germany, water permeable materials are adopted to pave the road surface from the last 60 years, and the transformation of the water impermeable road surface is dedicated, and the aim is to transform 90% of the road surface of the national cities into the water permeable road surface in 2010.
The japan tokyo construction office established a test district for 3 sidewalk water-permeable pavements as early as 1973, and accumulated a construction area of 1000 km 2 by 1999. The Japan INAX water permeable bricks are already put on the market and have strict enterprise standards. Meanwhile, relevant regulations for popularizing the water-permeable pavement are set by countries such as the United states and the like, and great effect is achieved.
In recent years, along with the continuous deterioration of the environment, China pays more and more attention to the research and development and application of the permeable pavement. In 1999, the Fushan city Lehua ceramics Limited company (China and foreign commissions) invented and patented a water permeable brick. The Beijing city promises the regulation of 'three-time water saving' for construction projects, definitely requires that a water permeable material is adopted to pave the road surface, and simultaneously supplements the project of rainwater utilization and transformation. The national governing department officially promulgates JC/T945-2005 'permeable brick' industrial standard, the official implementation is carried out from 7/1/2005, and GB/TS0378-2006 'Green building evaluation Standard' clearly stipulates that the outdoor permeable ground area ratio of the residential building and the public building is not less than 45% and 40% respectively. At present, manufacturers of water permeable bricks appear in succession in China, products of the water permeable bricks are actively adopted in green Olympic venues and green ecological buildings, but in general, the water permeable paved ground is not widely applied in large scale in China.
Compared with developed countries, the existing water permeable brick products in China still have no market competitiveness. Most of the water permeable bricks in the market are made of raw materials similar to concrete, and the water permeable bricks can have a water permeable function only by keeping a certain porosity, so that the mechanical strength of the product is reduced. Therefore, the contradiction becomes a main obstacle for restricting the large-scale popularization of the water permeable bricks in China.
Moreover, although manufacturers of water permeable bricks can consume a large amount of construction waste in the production process, the investment scale in the kiln and the energy consumption is large in the firing process, so that the product price is high, and the market expansion is limited. On the other hand, the water permeable bricks have higher requirements on soil quality and flatness due to more complex working procedures in the paving process, so the water permeable bricks still need further research.
Disclosure of Invention
In order to overcome the technical defects of common water permeable brick products in the existing market, the invention provides a water permeable brick for paving urban roads and a preparation method thereof.
The technical scheme of the invention is as follows:
the permeable brick for paving the urban roads is prepared by mixing a gel material and solid waste crushed to 3-10mm to prepare permeable brick aggregate, wherein the gel material is prepared by mixing slag powder and an alkali activator with water, and the weight ratio of the permeable brick aggregate to the slag powder to the alkali activator is 2.5-4: 1: 0.35-0.6.
Further, the solid waste is one or more than two of construction waste, tailing slag and coal gangue.
Further, the slag powder is one or more than two of water-quenched slag, fly ash, red mud and nickel slag, and when the slag powder is two of water-quenched slag and fly ash or red mud or ferrosilicon and silicomanganese slag, the weight ratio of the water-quenched slag to the fly ash or the red mud or the ferrosilicon and the silicomanganese slag is 0.2-1: 0-0.8.
Further, water is added in an amount of 1 to 20% by weight based on the water-cement ratio.
Further, the alkali activator is a mixed solution of water glass solution and NaOH, the water glass is an aqueous solution with the modulus of 3-3.6 and the Baume degree of 38-48.5, the NaOH is industrial grade, the mass percentage content is 96%, and the weight ratio of the water glass to the NaOH is 1: 0.1-1.
The preparation method of the water permeable brick comprises the following steps:
(1) preparation of alkali activator: mixing water glass and NaOH according to the weight ratio of 1: 0.1-1 under the stirring condition to obtain an alkali activator;
(2) mixing the slag powder and an alkali activator to obtain a gel material, crushing the solid waste to 3-10mm to prepare a water permeable brick aggregate, mixing the water permeable brick aggregate, the slag powder and the alkali activator, and controlling the weight ratio of the water permeable brick aggregate, the slag powder and the alkali activator to be 2.5-4: 1: 0.3-0.6;
(3) adding water in the mixing process in the step (2) according to the water cement ratio of 1-20% (weight ratio), starting a stirrer to stir for 3-6 minutes, and then transferring into a brick making machine to compact, trowel and form.
The invention has the beneficial effects that:
(1) the water permeable brick of the invention only needs to be compacted and leveled in a mould, and is naturally cured at normal temperature, and is not required to be cured in a constant-humidity and constant-temperature environment.
(2) The formula of the water permeable brick mainly solves the technical problems that the viscosity of a rare earth inorganic mineral adhesive mixed material is high, the mixed material of a mould pressing head of a brick making machine is adhered, and demoulding is delayed, and the produced water permeable brick after demoulding cannot be orderly stacked and has low yield.
(3) The water permeable brick of the invention adopts a baking-free production technology, and is produced by utilizing solid wastes such as slag powder, construction waste, tailing slag, fly ash and the like, so that the water permeability is obviously improved, and the water permeable brick has the water permeability of more than 25 percent.
(4) The process has the advantages of simple and easy control of production, low cost, easy construction, no addition of ordinary portland cement, and great environmental protection significance for low-end production energy conservation and consumption reduction in the cement industry; and organic and high molecular compounds such as epoxy resin and the like used in the production process of the conventional water permeable brick are not added, so that the weather resistance of the water permeable brick is greatly improved.
Detailed Description
The following embodiments are intended to illustrate the present invention in some detail, but the present invention is not limited to the scope of the following description, and modifications and substitutions made by ordinary knowledge and ordinary means in the field of the present invention should be included within the scope of the present invention without departing from the above-described method and process idea of the present invention.
Example 1
(1) Firstly, adding a certain amount of water glass with the modulus of 3.0-3.2 and industrial solid NaOH with the mass percentage of 96% into a stirring tank according to the weight ratio of 1: 0.15, stirring at the speed of 120 revolutions per minute for 5-10 minutes to obtain an alkali activator, and putting the alkali activator into a metering tank for later use;
(2) mixing water quenching slag powder and an alkali activator to obtain a gel material, crushing solid waste to 3-10mm to prepare water permeable brick aggregate, mixing the water permeable brick aggregate, the slag powder and the alkali activator in a weight ratio of 3: 1: 0.35;
(3) adding water in the mixing process in the step (2) according to the water cement ratio of 1% (weight ratio), starting a stirrer for stirring, and after 3-6 minutes, transferring into a brick making machine for compacting, trowelling and forming.
Example 2
(1) Firstly, adding a certain amount of water glass with the modulus of 3.0-3.2 and industrial solid NaOH with the mass percentage of 96% into a stirring tank according to the weight ratio of 1: 0.1, stirring at the speed of 120 revolutions per minute for 5-10 minutes to obtain an alkali activator, and putting the alkali activator into a metering tank for later use;
(2) mixing water quenching slag powder and fly ash according to the weight ratio of 20% to 80% to obtain mixed slag powder, mixing the mixed slag powder with an alkali activator to obtain a gel material, crushing solid waste to 3-10mm to prepare water permeable brick aggregate, mixing the water permeable brick aggregate, the slag powder and the alkali activator with the gel material, and controlling the weight ratio of the water permeable brick aggregate to 1: 0.45;
(3) adding water into the mixture obtained in the step (2) according to the water cement ratio of 2% (weight ratio), starting a stirrer for stirring, and after 3-6 minutes, transferring the mixture into a brick making machine for compacting, trowelling and forming.
Example 3
(1) Firstly, adding a certain amount of water glass with the modulus of 3.0-3.2 and industrial solid NaOH with the mass percentage of 96% into a stirring tank according to the weight ratio of 1: 0.5, stirring at the speed of 120 revolutions per minute for 5-10 minutes to obtain an alkali activator, and putting the alkali activator into a metering tank for later use;
(2) mixing water quenching slag powder and fly ash according to the weight ratio of 50% to obtain mixed slag powder, mixing the mixed slag powder with an alkali activator to obtain a gel material, crushing solid waste to 3-10mm to prepare water permeable brick aggregate, mixing the water permeable brick aggregate, the slag powder and the alkali activator with the gel material, and controlling the weight ratio of the water permeable brick aggregate, the slag powder and the alkali activator to be 3: 1: 0.4;
(3) adding water into the mixture obtained in the step (2) according to the water cement ratio of 2% (weight ratio), starting a stirrer for stirring, and after 3-6 minutes, transferring the mixture into a brick making machine for compacting, trowelling and forming.
Claims (5)
1. The utility model provides a brick that permeates water for urban area road is laid which characterized in that: the water permeable brick is made by pressing aggregate made of iron tailing sand and construction waste, active slag powder and rare earth inorganic mineral glue on a special brick making machine.
2. The water permeable brick according to claim 1, characterized in that: the mass ratio of the active slag powder, the rare earth inorganic mineral glue and the iron tailing slag (construction waste) is 1: 0.3-0.42: 3.5.
3. The water permeable brick according to claim 1, characterized in that: the particle size of the iron tailing slag (construction waste) is 3-5mm, and the specific surface area of the active slag powder is 482m2Kg, density 2.8g/cm3The modulus of the rare earth inorganic mineral adhesive is 1.2-1.6.
4. The water permeable brick according to claim 1, characterized in that: the brick making machine is a self-designed hydraulic brick making machine.
5. The preparation method of the water permeable brick according to claim 1 is characterized in that: the production steps of the water permeable brick are as follows
(1) Preparation of alkali activator: mixing water glass and NaOH according to the weight ratio of 1: 0.1-1 under the stirring condition to obtain an alkali activator;
(2) mixing the slag powder and an alkali activator to obtain a gel material, crushing the solid waste to 3-10mm to prepare a water permeable brick aggregate, mixing the water permeable brick aggregate, the slag powder and the alkali activator, and controlling the weight ratio of the water permeable brick aggregate, the slag powder and the alkali activator to be 2.5-4: 1: 0.3-0.6;
(3) adding water in the mixing process in the step (2) according to the water cement ratio of 1-20% (weight ratio), starting a stirrer to stir for 3-6 minutes, and then transferring into a brick making machine to compact, trowel and form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910259412.XA CN111763037A (en) | 2019-04-02 | 2019-04-02 | Water permeable brick for urban road paving and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910259412.XA CN111763037A (en) | 2019-04-02 | 2019-04-02 | Water permeable brick for urban road paving and preparation method thereof |
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| CN111763037A true CN111763037A (en) | 2020-10-13 |
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| CN106854060A (en) * | 2016-12-26 | 2017-06-16 | 长春市城市快速路管理维护有限责任公司 | A kind of ecological permeable bricks and preparation method thereof |
| CN109206116A (en) * | 2018-11-19 | 2019-01-15 | 遵义市旭辉新型节能建材有限公司 | A kind of manufacturing method using industrial tailings and coal ash baking-free brick |
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2019
- 2019-04-02 CN CN201910259412.XA patent/CN111763037A/en active Pending
Patent Citations (6)
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|---|---|---|---|---|
| KR20010099032A (en) * | 2001-08-14 | 2001-11-09 | 최희용 | Composite for Ecological Clay Porous Concrete with Non-cement powder |
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