CN113121161A - Ecological sponge bearing brick and preparation method thereof - Google Patents
Ecological sponge bearing brick and preparation method thereof Download PDFInfo
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- CN113121161A CN113121161A CN202110512868.XA CN202110512868A CN113121161A CN 113121161 A CN113121161 A CN 113121161A CN 202110512868 A CN202110512868 A CN 202110512868A CN 113121161 A CN113121161 A CN 113121161A
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- 239000011449 brick Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 70
- 239000004568 cement Substances 0.000 claims abstract description 46
- 239000004576 sand Substances 0.000 claims abstract description 36
- 239000002344 surface layer Substances 0.000 claims abstract description 35
- 239000004575 stone Substances 0.000 claims abstract description 30
- 239000000835 fiber Substances 0.000 claims abstract description 29
- 239000010410 layer Substances 0.000 claims abstract description 29
- 241000209094 Oryza Species 0.000 claims abstract description 22
- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 22
- 235000009566 rice Nutrition 0.000 claims abstract description 22
- 239000000654 additive Substances 0.000 claims abstract description 18
- 230000000996 additive effect Effects 0.000 claims abstract description 17
- 238000003756 stirring Methods 0.000 claims description 67
- 239000000463 material Substances 0.000 claims description 27
- 239000004744 fabric Substances 0.000 claims description 21
- 238000002156 mixing Methods 0.000 claims description 16
- 239000002904 solvent Substances 0.000 claims description 8
- 239000003125 aqueous solvent Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 238000009736 wetting Methods 0.000 claims description 5
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 4
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000002518 antifoaming agent Substances 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 2
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 2
- 239000004816 latex Substances 0.000 claims description 2
- 229920000126 latex Polymers 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000035699 permeability Effects 0.000 abstract description 11
- 239000012779 reinforcing material Substances 0.000 abstract description 3
- 238000005452 bending Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- -1 buildings Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000004202 respiratory function Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
- B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
- B28B13/0215—Feeding the moulding material in measured quantities from a container or silo
- B28B13/023—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper to the moulding cavities
- B28B13/025—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper to the moulding cavities the feed box being vibrated, e.g. to promote discharging of the material
-
- 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
Abstract
The invention discloses an ecological sponge bearing brick and a preparation method thereof, wherein the ecological sponge bearing brick comprises a surface layer and a bottom layer, and the surface layer comprises the following components in parts by weight: 6-10 parts of white sand, 6-10 parts of black sand, 5-9 parts of cement, 1-5 parts of water, 1-5 parts of an additive and 1-5 parts of fibers; the bottom layer comprises the following components in parts by mass: 6-10 parts of 5mm rice stone, 6-10 parts of 3mm rice stone, 5-9 parts of cement, 1-5 parts of an additive and 1-5 parts of fiber. According to the ecological sponge bearing brick, the surface layer formula adopts white sand and black sand as aggregates, the bottom layer formula adopts 5mm meter stone and 3mm meter stone, and fibers are used as reinforcing materials, so that the mechanical property of the water permeable brick can be greatly improved, the water permeable brick has good softening resistance, bending resistance, tensile strength and other properties, and meanwhile, the water permeability coefficient can reach more than 2.0 under the condition of a fine surface layer.
Description
Technical Field
The invention relates to the field of water permeable brick preparation, and particularly relates to an ecological sponge bearing brick and a preparation method thereof.
Background
With the rapid development of urbanization construction in China, most of cities are covered by waterproof materials such as buildings, concrete and the like, so that the contact of natural rainfall and underground soil is hindered, the phenomena of urban underground water level reduction, urban waterlogging, urban heat islands and the like are aggravated, and the urban natural ecology is deteriorated. In order to improve the respiratory function of urban environment in China and improve the environmental quality of cities, the nation proposes a plan for building green ecological sponge cities.
The water permeable brick can effectively solve the problem of water permeability of hardened roads, and is an important material for improving the breathing function of urban environment. At present, the baking-free water permeable brick mainly used in the market is prepared by taking cement or resin as a binding agent, taking ore or waste ceramic particles as aggregate and adding additives such as a water reducing agent and an early strength agent, so that the baking-free water permeable brick has the defects of low strength, easiness in pulverization, low breaking and tensile strength and softening coefficient, short service life and the like, meanwhile, the water permeability coefficient is low and can only reach about 0.5, various problems of cracking, delamination and the like are easy to occur during the use period or in a severe environment, and more funds and manpower are required to be invested for subsequent maintenance.
Disclosure of Invention
In order to solve the problems, the invention provides an ecological sponge bearing brick and a preparation method thereof, and the water permeability of the water permeable brick is greatly improved by improving the components and the proportion of a surface layer and a bottom layer and the preparation process.
The invention is realized by the following technical scheme:
the ecological sponge bearing brick comprises a surface layer and a bottom layer, wherein the surface layer comprises the following components in parts by mass: 6-10 parts of white sand, 6-10 parts of black sand, 5-9 parts of cement, 1-5 parts of water, 1-5 parts of an additive and 1-5 parts of fibers; the bottom layer comprises the following components in parts by mass: 6-10 parts of 5mm rice stone, 6-10 parts of 3mm rice stone, 5-9 parts of cement, 1-5 parts of an additive and 1-5 parts of fiber.
The surface layer and the bottom layer adopt the above formula, compared with the existing permeable brick raw materials, the surface layer formula adopts white sand and black sand as aggregates, the bottom layer formula adopts 5mm meter stone and 3mm meter stone, and fibers are used as reinforcing materials, so that the mechanical property of the permeable brick can be greatly improved, the permeable brick has good properties of softening resistance, folding resistance, tensile resistance and the like, and meanwhile, the permeability coefficient can reach more than 2.0 under the condition of a fine surface layer.
The admixture of the surface layer and the admixture of the bottom layer are both prepared according to the proportion of 1: 1: 1: 1:1 high-efficiency water reducing agent, cement brightener, 808 rubber powder, dispersible latex powder and defoaming agent.
The fibers of the surface layer and the bottom layer are made of HPMC hydroxypropyl methyl cellulose.
A preparation method of an ecological sponge load-bearing brick comprises the following steps: 1) preparing a surface layer blank: (a) firstly, putting white sand into a stirring device, adding water, and carrying out pre-humidification treatment to ensure that the total water-cement ratio is not exceeded; (b) adding water into the additive, and dissolving and stirring to obtain an aqueous solvent; (c) mixing and stirring a water solvent and fibers with pre-wetted white sand, and keeping the water-cement ratio to be less than 0.25; (d) adding cement and stirring for 2-3 min; (f) finally, adding black sand, mixing and stirring for 30-40s to prepare a surface layer blank; 2) preparing a bottom layer blank: (a) adding part of water into the admixture, dissolving in water in advance to obtain a hydrosolvent, adding fibers, and stirring for later use; (b) putting 3mm of rice stones into a stirring device, adding the solution obtained in the step (a), stirring and pre-wetting, adding 20-40% of cement, and stirring for 45-55 s; (c) adding 5mm of rice stone, mixing and stirring for 30-50s, adding the rest water, and stirring for 50-60 s; (d) adding the rest cement and stirring for 115-125 s; 3) and (3) forming and demolding: (a) respectively adding the surface layer blank and the bottom layer blank into a surface material distributor and a bottom material distributor; (b) the backing material distributor lays backing material into the mould at a vibration frequency of 50-60Hz and at a differential speed of 1:1.5-2 for the No. 1 cloth tooth and the No. 2 cloth tooth; (c) the fabric distributing device spreads the fabric on the backing material in the mould at the vibration frequency of 50-60Hz and the vibration time of 1-0.3 s; (d) and adjusting the final vibration forming frequency of the vibration forming machine to be 55-60 Hz.
The permeable brick is prepared by the process, so that the aggregate can fully wrap the cement, the full adhesion of the aggregate and the stability of the strength are promoted, and the permeability of the permeable brick is improved.
The stirring device in the step 1) and the step 2) adopts a vertical shaft planetary stirrer.
The vibration mode of the vibration forming machine adopts a high-speed variable-frequency amplitude modulation bottom table vertical orientation composite vibration mode, compared with the problems of uneven vibration force, long vibration time and uneven compression ratio of a traditional eccentric vibration motor, and uneven strength caused by insufficient density of finished products, the invention has the advantages that the blank can be uniformly vibrated to reach the optimal compression ratio instantly under the assistance of frequency conversion in the high-speed variable-frequency amplitude modulation bottom table vertical orientation composite vibration mode, so that the strength of the finished products is ensured.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. according to the ecological sponge bearing brick and the preparation method, the surface layer formula adopts white sand and black sand as aggregates, the bottom layer formula adopts 5mm meter stone and 3mm meter stone, and fibers are used as reinforcing materials, so that the mechanical property of the water permeable brick can be greatly improved, the water permeable brick has good softening resistance, bending resistance, tensile strength and other properties, and meanwhile, the water permeability coefficient can reach more than 2.0 under the condition of a fine surface layer;
2. according to the ecological sponge bearing brick and the preparation method thereof, the aggregate can be fully wrapped with the cement, so that the full adhesion of the aggregate and the stability of the strength are promoted, and the water permeability of the water permeable brick is improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not used as limitations of the present invention.
Example 1
An ecological sponge bearing brick and a preparation method thereof, wherein a surface layer comprises the following components in parts by weight: 6 parts of white sand, 6 parts of black sand, 5 parts of cement, 1 part of water, 1 part of an additive and 1 part of fiber; the bottom layer comprises the following components in parts by mass: 6 parts of 5mm rice stone, 6 parts of 3mm rice stone, 5 parts of cement, 1 part of additive and 1 part of fiber; the preparation method comprises the following steps: 1) preparing a surface layer blank: (a) firstly, putting white sand into a stirring device, adding water, and carrying out pre-humidification treatment to ensure that the water-cement ratio is between 0.2 and 0.25; (b) adding water into the additive, and dissolving and stirring to obtain an aqueous solvent; (c) adding a water solvent and fibers into a stirring device, mixing and stirring the water solvent and the fibers with the pre-wetted white sand, and keeping the water-cement ratio to be less than 0.25; (d) adding cement and stirring for 2 min; (f) finally, adding black sand, mixing and stirring for 30s to prepare a surface layer blank; 2) preparing a bottom layer blank: (a) adding water into the admixture, dissolving the admixture in water in advance to obtain a hydrosolvent, adding fibers and stirring the mixture for later use; (b) putting 3mm of rice stones into a stirring device, adding the solution obtained in the step (a), stirring and pre-wetting, and then adding 20% of cement and stirring for 45 s; (c) adding 5mm of rice stones, mixing and stirring for 30s, adding the rest water, and stirring for 50 s; (d) adding the rest cement and stirring for 115 s; 3) and (3) forming and demolding: (a) respectively adding the surface layer blank and the bottom layer blank into a surface material distributor and a bottom material distributor; (b) the backing material distributor lays backing material into the mould at a vibration frequency of 50Hz and at a differential speed of 1:1.5 between the No. 1 cloth tooth and the No. 2 cloth tooth; (c) the fabric distributing device spreads the fabric on the backing material in the mould at the vibration frequency of 50Hz and the vibration time of 1-0.3 s; (d) adjusting the final vibration molding frequency to 55Hz, and performing final vibration molding and demolding.
Example 2
An ecological sponge bearing brick and a preparation method thereof, wherein a surface layer comprises the following components in parts by weight: 10 parts of white sand, 10 parts of black sand, 9 parts of cement, 5 parts of water, 5 parts of an additive and 5 parts of fibers; the bottom layer comprises the following components in parts by mass: 10 parts of 5mm rice stone, 10 parts of 3mm rice stone, 9 parts of cement, 5 parts of an additive and 5 parts of fibers; the preparation method comprises the following steps: 1) preparing a surface layer blank: (a) firstly, putting white sand into a stirring device, adding water, and carrying out pre-humidification treatment to ensure that the water-cement ratio is between 0.2 and 0.25; (b) adding water into the additive, and dissolving and stirring to obtain an aqueous solvent; (c) adding a water solvent and fibers into a stirring device, mixing and stirring the water solvent and the fibers with the pre-wetted white sand, and keeping the water-cement ratio to be less than 0.25; (d) adding cement and stirring for 3 min; (f) finally, adding black sand, mixing and stirring for 40s to prepare a surface layer blank; 2) preparing a bottom layer blank: (a) adding water into the admixture, dissolving the admixture in water in advance to obtain a hydrosolvent, adding fibers and stirring the mixture for later use; (b) putting 3mm of rice stones into a stirring device, adding the solution obtained in the step (a), stirring and pre-wetting, and then adding 40% of cement and stirring for 55 s; (c) adding 5mm of rice stones, mixing and stirring for 50s, adding the rest water, and stirring for 60 s; (d) adding the rest cement and stirring for 125 s; 3) and (3) forming and demolding: (a) respectively adding the surface layer blank and the bottom layer blank into a surface material distributor and a bottom material distributor; (b) the backing material distributor lays backing material into the mould at a vibration frequency of 60Hz and at a differential speed of 1:2 for the No. 1 cloth tooth and the No. 2 cloth tooth; (c) the fabric distributor lays the fabric on the bottom material in the mould at the vibration frequency of 60Hz and the vibration time of 1-0.3 s; (d) adjusting the final vibration molding frequency to 60Hz, and performing final vibration molding and demolding.
Example 3
An ecological sponge bearing brick and a preparation method thereof, wherein a surface layer comprises the following components in parts by weight: 8 parts of white sand, 8 parts of black sand, 7 parts of cement, 3 parts of water, 3 parts of an additive and 3 parts of fibers; the bottom layer comprises the following components in parts by mass: 8 parts of 5mm rice stone, 8 parts of 3mm rice stone, 7 parts of cement, 3 parts of an additive and 3 parts of fiber; the preparation method comprises the following steps: 1) preparing a surface layer blank: (a) firstly, putting white sand into a stirring device, adding water, and carrying out pre-humidification treatment to ensure that the water-cement ratio is between 0.2 and 0.25; (b) adding water into the additive, and dissolving and stirring to obtain an aqueous solvent; (c) adding a water solvent and fibers into a stirring device, mixing and stirring the water solvent and the fibers with the pre-wetted white sand, and keeping the water-cement ratio to be less than 0.25; (d) adding cement and stirring for 2 min; (f) finally, adding black sand, mixing and stirring for 35s to prepare a surface layer blank; 2) preparing a bottom layer blank: (a) adding water into the admixture, dissolving the admixture in water in advance to obtain a hydrosolvent, adding fibers and stirring the mixture for later use; (b) putting 3mm of rice stones into a stirring device, adding the solution obtained in the step (a), stirring and pre-wetting, adding 30% of cement, and stirring for 50 s; (c) adding 5mm of rice stone, mixing and stirring for 30-50s, adding the rest water, and stirring for 55 s; (d) adding the rest cement and stirring for 120 s; 3) and (3) forming and demolding: (a) respectively adding the surface layer blank and the bottom layer blank into a surface material distributor and a bottom material distributor; (b) the backing material distributor lays backing material into the mould at a vibration frequency of 55Hz and at a differential speed of 1:2 for the No. 1 cloth tooth and the No. 2 cloth tooth; (c) the fabric distributing device spreads the fabric on the backing material in the mould at the vibration frequency of 55Hz and the vibration time of 1-0.3 s; (d) adjusting the final vibration molding frequency to 60Hz, and performing final vibration molding and demolding.
Comparative example
The existing common water permeable brick in the market comprises stone dust sand, 325 cement, washed sand, 325 white cement, an early strength agent and pigment, and the specific preparation process comprises the following steps: mixing and stirring the stone powder sand and the cement, adding water, washing the fabric with water, adding the cement and the pigment, adding the water, stirring, and performing vibration molding by using a common eccentric vibration table.
The water permeable bricks prepared in examples 1-3 and comparative examples were subjected to corresponding performance tests (e.g., water permeability, porosity, strength, and other data that can be used to advantage) and the results are shown in the following table:
from the results of the above table, the water permeable brick of the invention has obviously improved compressive strength, tensile strength and breaking strength compared with the existing common water permeable brick, and has a water permeability coefficient far higher than that of the existing water permeable brick and good water permeability.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. The ecological sponge bearing brick comprises a surface layer and a bottom layer, and is characterized in that the surface layer comprises the following components in parts by mass: 6-10 parts of white sand, 6-10 parts of black sand, 5-9 parts of cement, 1-5 parts of water, 1-5 parts of an additive and 1-5 parts of fibers; the bottom layer comprises the following components in parts by mass: 6-10 parts of 5mm rice stone, 6-10 parts of 3mm rice stone, 5-9 parts of cement, 1-5 parts of an additive and 1-5 parts of fiber.
2. The ecological sponge load-bearing brick as claimed in claim 1, wherein the admixture of the surface layer and the admixture of the bottom layer are mixed in a ratio of 1: 1: 1: 1:1 high-efficiency water reducing agent, cement brightener, 808 rubber powder, dispersible latex powder and defoaming agent.
3. The ecological sponge load-bearing brick as claimed in claim 1, wherein the top layer and the bottom layer are made of HPMC hydroxypropyl methylcellulose.
4. The preparation method of the ecological sponge load-bearing brick is characterized by comprising the following steps: 1) preparing a surface layer blank: (a) firstly, putting white sand into a stirring device, adding water, and carrying out pre-humidification treatment to ensure that the total water-cement ratio is not exceeded; (b) adding water into the additive, and dissolving and stirring to obtain an aqueous solvent; (c) mixing and stirring a water solvent and fibers with pre-wetted white sand, and keeping the water-cement ratio to be less than 0.25; (d) adding cement and stirring for 2-3 min; (f) finally, adding black sand, mixing and stirring for 30-40s to prepare a surface layer blank; 2) preparing a bottom layer blank: (a) adding part of water into the admixture, dissolving in water in advance to obtain a hydrosolvent, adding fibers, and stirring for later use; (b) putting 3mm of rice stones into a stirring device, adding the solution obtained in the step (a), stirring and pre-wetting, adding 20-40% of cement, and stirring for 45-55 s; (c) adding 5mm of rice stone, mixing and stirring for 30-50s, adding the rest water, and stirring for 50-60 s; (d) adding the rest cement and stirring for 115-125 s; 3) and (3) forming and demolding: (a) respectively adding the surface layer blank and the bottom layer blank into a surface material distributor and a bottom material distributor; (b) the backing material distributor lays backing material into the mould at a vibration frequency of 50-60Hz and at a differential speed of 1:1.5-2 for the No. 1 cloth tooth and the No. 2 cloth tooth; (c) the fabric distributing device spreads the fabric on the backing material in the mould at the vibration frequency of 50-60Hz and the vibration time of 1-0.3 s; (d) and adjusting the final vibration forming frequency of the vibration forming machine to be 55-60 Hz.
5. The method for preparing the ecological sponge load-bearing brick as claimed in claim 4, wherein the stirring device in the steps 1) and 2) is a vertical shaft planetary stirrer.
6. The method for preparing ecological sponge load-bearing brick as claimed in claim 4, wherein the vibration mode of the vibration forming machine is a compound vibration mode with extremely high speed and variable frequency amplitude modulation and vertical orientation of the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110512868.XA CN113121161A (en) | 2021-05-11 | 2021-05-11 | Ecological sponge bearing brick and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110512868.XA CN113121161A (en) | 2021-05-11 | 2021-05-11 | Ecological sponge bearing brick and preparation method thereof |
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| CN112390587A (en) * | 2020-10-16 | 2021-02-23 | 安庆德瑞凯新型建筑材料有限公司 | Stone-like water permeable brick and manufacturing method thereof |
| CN214938918U (en) * | 2021-05-11 | 2021-11-30 | 成都市金百烨建材有限公司 | Ecological sponge bearing brick with high water permeability |
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2021
- 2021-05-11 CN CN202110512868.XA patent/CN113121161A/en active Pending
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| CN108439889A (en) * | 2018-05-09 | 2018-08-24 | 平顶山市公路交通勘察设计院 | A kind of environment friendly pervious brick and preparation method thereof for sponge city |
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