CN106145874B - The method that absorbent-type medical stone brunisolic soil clay microballon prepares the porous sponge brick that catchments - Google Patents
The method that absorbent-type medical stone brunisolic soil clay microballon prepares the porous sponge brick that catchments Download PDFInfo
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- CN106145874B CN106145874B CN201610518646.8A CN201610518646A CN106145874B CN 106145874 B CN106145874 B CN 106145874B CN 201610518646 A CN201610518646 A CN 201610518646A CN 106145874 B CN106145874 B CN 106145874B
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- sponge brick
- catchments
- medical stone
- porous sponge
- brunisolic
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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
- C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/131—Inorganic additives
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/08—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
-
- 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
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Road Paving Structures (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention provides the method that absorbent-type medical stone brunisolic soil clay microballon prepares the porous sponge brick that catchments, and comprises the following steps：The dispensing of the porous sponge brick that catchments：15~20wt% of cement, particle diameter is 100~250 μm of 60~75wt% of the hollow clay microballon of medical stone brunisolic soil perforate, 5~15wt% of sodium metasilicate of modulus 3.2~3.5, 5~the 10wt% of flyash and polyvinyl alcohol high hydroscopic resin 1.5~5.0wt% of fiber proportion samples of loss on ignition 1.1% are simultaneously well mixed, compound is sized mixing with 0.5~0.7 ratio of mud, add the aluminium powder cream that compound gross weight is 0.2~1.0%, aluminium powder cream hydration reaction generates bubble, form porous expansion water suction slurries, the expansion water suction slurries of preparation are stirred and poured into the die trial of sponge brick press, through striking off, compacting, the demoulding, dry, the porous sponge brick that catchments is made.
Description
Technical field
The present invention relates to the method that absorbent-type medical stone brunisolic soil clay microballon prepares the porous sponge brick that catchments, belong to material
Technology is led.
Background technology
Due to EI Nino and La Nina Phenomenon, there is extreme change in the weather in China, and rainfall distributed pole is uneven, south
Northern drought and waterlogging are uneven, and rainfall is also extremely unequal in same area, 1 year, and water shortage has restricted expanding economy and the people
Life, rationally using existing precipitation, by cell road surface, road, the effective precipitation in public leisure square rationally collect, store,
Utilize, alleviate drought and water shortage season use water, the thermal capacity of water is big, can absorb heat also can heat release, improve miniclimate.
The content of the invention
The hollow clay microballon of medical stone brunisolic soil perforate by the use of perforate is used as base-material, using sodium metasilicate as binding agent, water
Mud increases mechanical strength and cementation for the porous sponge brick that catchments, and the resin fibre of flyash and polyvinyl alcohol high water absorption is strong
Water absorbing agent, brunisolic soil main component belong to clay mineral based on kaolinite and vermiculite, and plasticity is strong, and iron manganese content is high, viscosity
Greatly, compression strength is big after high-temperature firing, and the smaller specific surface area of medical stone particle diameter is bigger, and adsorption capacity is stronger, and medical stone is in water
It is heavy metal ion adsorbed, the heavy metal cation in cation and water substantially in medical stone swaps, by from
Son exchange medical stone has adsorbed the heavy metal cation in water, adjusts the pH value of water, using dilatant slurry, reduces the close of slurries
Degree, a face of the manufactured porous sponge brick that catchments is in dovetail channel-shaped, and the porous moisture for catchmenting the absorption of sponge brick enters dovetail groove,
Collector pipe is flowed into again by the effect of gravity, and collector pipe links together the porous sponge brick that catchments, and rainwater catchment is into collecting-tank.
Its technical scheme is：The method that absorbent-type medical stone brunisolic soil clay microballon prepares the porous sponge brick that catchments, first
Step, the dispensing of the porous sponge brick that catchments：15~20wt% of cement, particle diameter are that 100~250 μm of hollow clay of medical stone brunisolic soil are micro-
60~75wt% of pearl, 5~15wt% of sodium metasilicate of modulus 3.2~3.5, the 5~10wt% of flyash and polyethylene of loss on ignition 1.1%
Alcohol high hydroscopic resin 1.5~5.0wt% of fiber, the percentage by weight sum of above each component is 100%；
The preparation of second step, the porous sponge brick expansion water suction slurries that catchment：Sample by the percentage by weight of the first step, first will
Particle diameter is that 100~250 μm of hollow clay microballons of medical stone brunisolic soil perforate are put into feed bin, and distributing device, cloth are sent into by elevator
The hollow clay microballon of medical stone brunisolic soil perforate is evenly distributed on governing belt balance by glassware, and spray thrower is by modulus 3.2~3.5
Sodium metasilicate be uniformly sprayed at the outer surface of the hollow clay microballon of medical stone brunisolic soil perforate, the hollow pottery of medical stone brunisolic soil perforate
Native microballon enters inside spin drum agitation device with governing belt balance, makes the outer of the hollow clay microballon of each medical stone brunisolic soil perforate
Sodium metasilicate is all uniformly adhered on surface, and sodium metasilicate is inorganic bond, is hydrophilic, and cohesive force is strong, intensity is higher, acid resistance,
Heat-resist, hydrophilicity does not influence caking property, and compound is 15~20wt% of cement, particle diameter is 100~250 μm of medical stone palm fibres
60~75wt% of the hollow clay microballon of loam perforate, 5~15wt% of sodium metasilicate of modulus 3.2~3.5, the fine coal of loss on ignition 1.1%
5~10wt% of ash and polyvinyl alcohol high hydroscopic resin 1.5~5.0wt% of fiber, then compound is adjusted with 0.5~0.7 ratio of mud
Slurry, ash is compound, is eventually adding the aluminium powder cream that compound gross weight is 0.2~1.0%, hydration reaction generation bubble, is formed more
The slurries of hole expansion water suction, reduce the weight of sponge brick, and polyvinyl alcohol high hydroscopic resin fiber has extremely strong water imbibition, absorbed water
Sponge brick compression strength afterwards is constant；
The preparation of 3rd step, the porous sponge brick that catchments：Expansion water suction slurries prepared by second step, which stir, pours into sea
In the die trial of continuous brick press, by 1.2~2.0:1 volume ratio is suppressed, and ratio 1.2~2.0 is the volume before compacting, and ratio 1 is
Volume after compacting, through striking off, suppressing, being stripped, drying, the porous sponge brick that catchments, a face of the porous sponge brick that catchments is made
In dovetail channel-shaped, the porous moisture for catchmenting the absorption of sponge brick enters in dovetail groove, in collector pipe insertion dovetail groove, collector pipe insertion
A part of arc surface in dovetail groove is openning shape, and another part arc surface is closed, and rainwater passes through the porous sponge brick that catchments
Collect, into dovetail groove, flowed into collector pipe again by the effect of gravity, the single porous sponge brick that catchments is connected to by collector pipe
Together, the rainwater that collector pipe collects enters in collecting-tank.
The preparation of the hollow clay microballon of medical stone brunisolic soil perforate：First by 80~200 μm of medical stones of particle diameter, 200~400 μm
Brunisolic soil is by weight 20~30:70~85 compounds stir, and the percentage by weight sum of two kinds of components is 100%, mixing
Material is sized mixing by 0.5~0.7 ratio of mud, the compound that ash forms for two kinds of compositions of medical stone and brunisolic soil, by centrifugal rotation
Injection forms microballon at a high speed, then through 800~950 DEG C of expansions, 1000~1500 DEG C of firings, quick cooling, forms wall thickness 50~100
μm, particle diameter is 100~250 μm of the hollow clay microballon of medical stone brunisolic soil perforate, and two kinds of materials of medical stone and brunisolic soil mix,
By high-temperature firing, modified medical stone and the compound clay resistance to compression microballon of brunisolic soil are formd, the component of material is different, modified
The chemical property of material is also different, and brunisolic soil main component belongs to clay mineral based on kaolinite, vermiculite, and plasticity is strong, iron
Manganese content is high, and compression strength is big after high-temperature firing, and the smaller specific surface area of medical stone particle diameter is bigger, and adsorption capacity is stronger, medical stone
To heavy metal ion adsorbed in water, the heavy metal cation in cation and water substantially in medical stone swaps,
The heavy metal cation in water has been adsorbed by ion exchange medical stone, has adjusted the pH value of water.
The modulus of sodium metasilicate is most important, and when modulus is more than 3.5, with the increase of modulus, sodium metasilicate, which is hardened, to become fragile, and glues
Knot property is deteriorated, and when modulus is less than 3.2, caking property declines.
Flyash is strong water absorbent, by high temperature sintering, there is higher activity.
A rainwater part for accumulation is pooled in collecting-tank by the porous sponge brick that catchments by collector pipe, and another part penetrates into
Into soil, increase soil water content, in summer high-temperature season, the heat on surface can also be transmitted to by the porous sponge brick that catchments
In soil, the temperature on sponge tile floor surface is reduced, the thermal capacity of water is big, and can absorb heat also can heat release.
The present invention has advantages below.
1st, the Materials Inorganic environment-friendly materials used in sponge brick are prepared, environment will not be damaged, the recyclable energy of sponge brick
Secondary use.
2nd, it is strong water absorbent to prepare sponge brick flyash and the resin fibre of polyvinyl alcohol high water absorption, can absorb sponge brick table
The moisture in face enters inside, when reaching certain amount, is dropped into the presence of by gravity in collector pipe.
3rd, aluminium powder cream is added in compound, forms the slurries of porous expansion, reduces the density of slurries.
4th, the heavy metal cation in the cation and water in medical stone swaps, and is adsorbed by ion exchange medical stone
Heavy metal cation in water, adjust the pH value of water.
Brief description of the drawings
Fig. 1 is the axle geodesic structure schematic diagram of the sea brick of the embodiment of the present invention.
Fig. 2 is that the bottom of the sea brick of the embodiment of the present invention regards structural representation.
Fig. 3 is the structural representation that the monolithic sponge brick of the embodiment of the present invention is linked together by collector pipe.
Wherein 1 in figure, sponge brick 2, dovetail groove 3, collector pipe.
Embodiment
Embodiment 1.
In embodiment as shown in Figures 1 to 3, absorbent-type medical stone brunisolic soil clay microballon prepares the porous sponge brick that catchments
Method, the preparation of the first step, the hollow clay microballon of medical stone brunisolic soil perforate：First by 100 μm of medical stones of particle diameter, 300 μm of palm fibres
Loam is by weight 30:70 compounds are stirred, and compound is sized mixing by 0.6 ratio of mud, are sprayed at a high speed by centrifugal rotation
Microballon is formed, then through 820 DEG C of expansions, 1250 DEG C of high-temperature firings, quick cooling, forms 80 μm of wall thickness, particle diameter is 200 μm of wheat meal
The hollow clay microballon of stone brunisolic soil perforate.
The dispensing of second step, the porous sponge brick that catchments：It is 200 μm of medical stone brunisolic soil perforates to take cement 20wt%, particle diameter
Hollow clay microballon 60wt%, the sodium metasilicate 12wt% of modulus 3.2, the flyash 6wt% of loss on ignition 1.1% and polyvinyl alcohol are high to be inhaled
Water-resin fiber 2.0wt%.
The preparation of 3rd step, the porous sponge brick expansion water suction slurries that catchment：Sample by the percentage by weight of the first step, first will
Particle diameter is that 200 μm of hollow clay microballons of medical stone brunisolic soil perforate are put into feed bin, is sent into distributing device by elevator, distributing device will
The hollow clay microballon of medical stone brunisolic soil perforate is evenly distributed on governing belt balance, and spray thrower is equal by the sodium metasilicate of modulus 3.2
The even outer surface for being sprayed at the hollow clay microballon of medical stone brunisolic soil perforate, enter inside spin drum agitation with governing belt balance
Device, compound is sized mixing with 0.6 ratio of mud, add the aluminium powder cream that compound gross weight is 0.5%, hydration reaction generation gas
Bubble, the slurries of porous expansion water suction are formed, reduce the weight of sponge brick, polyvinyl alcohol high hydroscopic resin fiber has extremely strong suction
Water-based, the sponge brick compression strength after water suction is constant, and medical stone is to heavy metal ion adsorbed in water, substantially in medical stone
Cation and water in heavy metal cation carry out ion exchange, the heavy metal in water has been adsorbed by ion exchange medical stone
Cation, adjust the pH value of water.
The preparation of the porous sponge brick that catchments of 4th step, absorbent-type：Expansion water suction slurries prepared by second step stir
Pour into the die trial of sponge brick press, by 1.5:1 volume ratio compacting, through striking off, suppressing, being stripped, drying, is made porous
Catchment sponge brick 1, and a face of the porous sponge brick 1 that catchments is in the shape of dovetail groove 2, and the porous moisture for catchmenting the absorption of sponge brick 1 enters
In dovetail groove 2, collector pipe 3 is installed in dovetail groove 2, rainwater collects by the porous sponge brick 1 that catchments, into dovetail groove 2
It is interior, collector pipe 3 is flowed into again by the effect of gravity, and collector pipe 3 links together the single porous sponge brick 1 that catchments, and collector pipe 3 converges
The rainwater of collection enters in collecting-tank, by precipitating, filtering, reuses.
The above described is only a preferred embodiment of the present invention, being not the limitation for making other forms to the present invention, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Embodiment is imitated, every without departing from technical solution of the present invention content, the technical spirit according to type of the present invention is made to above example
Any simple modification, equivalent variations and remodeling, still fall within the protection domain of type technical scheme of the present invention.
Claims (1)
1. the method that absorbent-type medical stone brunisolic soil clay microballon prepares the porous sponge brick that catchments, comprises the following steps：
The dispensing of the first step, the porous sponge brick that catchments：15~20wt% of cement, particle diameter are that 100~250 μm of medical stone brunisolic soils are opened
Hole 60~75wt% of hollow clay microballon, 5~15wt% of sodium metasilicate of modulus 3.2~3.5, loss on ignition 1.1% flyash 5~
10wt% and polyvinyl alcohol high hydroscopic resin 1.5~5.0wt% of fiber, the percentage by weight sum of above each component is 100%, wheat
The preparation of the hollow clay microballon of meal stone brunisolic soil perforate：First by 80~200 μm of medical stones of particle diameter, 200~400 μm of brunisolic soils by weight
Measure ratio 20~30:70~85 compounds stir, and the percentage by weight sums of two kinds of components is 100%, compound by 0.5~
0.7 ratio of mud is sized mixing, and ash is the compound of two kinds of composition compositions of medical stone and brunisolic soil, sprays shape at a high speed by centrifugal rotation
Into microballon, then through 800~950 DEG C of expansions, 1000~1500 DEG C of firings, quick cooling, 50~100 μm of wall thickness is formed, particle diameter is
100~250 μm of the hollow clay microballon of medical stone brunisolic soil perforate；
The preparation of second step, the porous sponge brick expansion water suction slurries that catchment：Sampled by the percentage by weight of the first step, first by particle diameter
It is put into for 100~250 μm of hollow clay microballons of medical stone brunisolic soil perforate in feed bin, distributing device, distributing device is sent into by elevator
The hollow clay microballon of medical stone brunisolic soil perforate is evenly distributed on governing belt balance, spray thrower is by the silicon of modulus 3.2~3.5
Sour sodium is uniformly sprayed at the outer surface of the hollow clay microballon of medical stone brunisolic soil perforate, and the hollow clay of medical stone brunisolic soil perforate is micro-
Pearl enters inside spin drum agitation device with governing belt balance, then compound is sized mixing with 0.5~0.7 ratio of mud, is eventually adding
The aluminium powder cream that compound gross weight is 0.2~1.0% stirs, and aluminium powder cream hydration reaction generation bubble, forms porous expansion and inhales
The slurries of water；
The preparation of 3rd step, the porous sponge brick that catchments：Expansion water suction slurries prepared by second step, which stir, pours into sponge brick
In the die trial of press, through striking off, suppressing, being stripped, drying, the porous sponge brick that catchments is made（1）, the porous sponge brick that catchments（1）
A face be in dovetail groove（2）Shape, collector pipe（3）Embedded dovetail groove（2）It is interior, collector pipe（3）Embedded dovetail groove（2）Interior one
Cyclotomy cambered surface is openning shape, and another part arc surface is closed, and rainwater passes through the porous sponge brick that catchments（1）Collect, enter
Dovetail groove（2）It is interior, entered collector pipe by the effect of gravity（3）, collector pipe（3）By the single porous sponge brick that catchments（1）It is connected to
Together, collector pipe（3）The rainwater collected enters in collecting-tank.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610518646.8A CN106145874B (en) | 2016-07-05 | 2016-07-05 | The method that absorbent-type medical stone brunisolic soil clay microballon prepares the porous sponge brick that catchments |
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| CN201610518646.8A CN106145874B (en) | 2016-07-05 | 2016-07-05 | The method that absorbent-type medical stone brunisolic soil clay microballon prepares the porous sponge brick that catchments |
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| CN106145874A CN106145874A (en) | 2016-11-23 |
| CN106145874B true CN106145874B (en) | 2018-02-09 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103553448A (en) * | 2013-09-27 | 2014-02-05 | 北京仁创科技集团有限公司 | Ceramsite water permeable brick and preparation method thereof |
| CN104452525A (en) * | 2014-11-18 | 2015-03-25 | 浙江大学宁波理工学院 | Water permeable brick and preparation method thereof |
| CN105016765A (en) * | 2015-07-27 | 2015-11-04 | 江苏溧阳建设集团有限公司 | Corrosion resistant water permeable brick |
| CN105503113A (en) * | 2015-12-17 | 2016-04-20 | 乔生艮 | Energy-saving environment-friendly water-permeable autoclaved brick and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1966861B (en) * | 2006-09-30 | 2012-03-28 | 北京仁创科技集团有限公司 | Composite water permeable brick |
-
2016
- 2016-07-05 CN CN201610518646.8A patent/CN106145874B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103553448A (en) * | 2013-09-27 | 2014-02-05 | 北京仁创科技集团有限公司 | Ceramsite water permeable brick and preparation method thereof |
| CN104452525A (en) * | 2014-11-18 | 2015-03-25 | 浙江大学宁波理工学院 | Water permeable brick and preparation method thereof |
| CN105016765A (en) * | 2015-07-27 | 2015-11-04 | 江苏溧阳建设集团有限公司 | Corrosion resistant water permeable brick |
| CN105503113A (en) * | 2015-12-17 | 2016-04-20 | 乔生艮 | Energy-saving environment-friendly water-permeable autoclaved brick and preparation method thereof |
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| CN106145874A (en) | 2016-11-23 |
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