CN106186764A - Sound absorption-type ceramic fibre firefly Ore is prepared porous and is catchmented the method for sponge brick - Google Patents
Sound absorption-type ceramic fibre firefly Ore is prepared porous and is catchmented the method for sponge brick Download PDFInfo
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- CN106186764A CN106186764A CN201610518519.8A CN201610518519A CN106186764A CN 106186764 A CN106186764 A CN 106186764A CN 201610518519 A CN201610518519 A CN 201610518519A CN 106186764 A CN106186764 A CN 106186764A
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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
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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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/027—Lightweight materials
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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
- 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
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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
- 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
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- 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
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- 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
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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
- 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
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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
- 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
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Architecture (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Road Paving Structures (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
nullThe present invention provides sound absorption-type ceramic fibre firefly Ore to prepare porous to catchment the method for sponge brick，Comprise the following steps: porous is catchmented the dispensing of sponge brick: by cement 15～20wt%、Particle diameter is 300～500 m firefly Ore perforate cenospheres 45～65wt%、The sodium silicate 5～15wt% of modulus 3.2～3.5、Particle diameter is 100～200 m calcium oxide 3～5wt%、The flyash 5～7wt% of loss on ignition 1.1%、High hydrophilous resin fiber 0.5～5.0wt% and ceramic fibre 15～30wt% mix homogeneously，Compound is sized mixing with the ratio of mud of 0.5～0.7，Add the aluminium powder cream that compound gross weight is 0.2～1.5%，Aluminium powder cream hydration reaction generates bubble，Form porous and expand water suction serosity，Stir expanding water suction serosity in the die trial pouring sponge brick press into，Through striking off、Compacting、The demoulding、Dry，Make sponge brick.
Description
Technical field
The present invention relates to sound absorption-type ceramic fibre firefly Ore prepare porous and catchment the method for sponge brick, belong to material technology
Neck.
Background technology
Due to EI Nino and La Nina Phenomenon, there is extreme change in the weather of China, and rainfall distributed pole is uneven, south
North drought and waterlogging are uneven, and in same area, in 1 year, rainfall is the most unequal, and hydropenia has restricted expanding economy and the people
Life, the existing precipitation of Appropriate application, road surface, community, road, the effective precipitation in public leisure square are rationally collected, store,
Utilize, alleviate the use water in drought and water shortage season, significant.
Summary of the invention
Firefly Ore be mainly composed of calcium fluoride, calcium oxide and calcium carbonate, intensity is high, hardness is big, high temperature resistant, wear-resisting, resistance to
Pressure, fire-retardant, thermal coefficient of expansion is low, and ceramic fibre increases the mechanical tenacity of sponge brick, moreover it is possible to makes sponge brick be formed and multiple hands in length and breadth
The micropore of fork, micropore has the function of sound-absorbing, and using sodium silicate as binding agent, cement is that porous catchments sponge brick increase machinery by force
Degree and cementation, the resin fibre of polyvinyl alcohol height water suction is strong water absorbent, uses dilatant slurry, reduces the density of serosity,
A catchment face of sponge brick of the porous made is dovetail channel-shaped, and the porous moisture that sponge brick absorbs that catchments enters dovetail groove, is subject to
The effect of gravity flows into collector pipe again, and the collector pipe sponge brick that porous catchmented links together, in rainwater catchment to collecting-tank.
Its technical scheme is: sound absorption-type ceramic fibre firefly Ore is prepared porous and catchmented the method for sponge brick, the first step, porous
Catchment the dispensing of sponge brick: cement 15～20wt%, particle diameter are 300～500 m firefly Ore perforate cenospheres 45～65wt%, mould
Sodium silicate 5～15wt%, the particle diameter of several 3.2～3.5 are 100～200 m calcium oxide 3～5wt%, the flyash 5 of loss on ignition 1.1%
～7wt%, High hydrophilous resin fiber 0.5～5.0wt% and ceramic fibre 15～30wt%, the percentage by weight of above each component it
With for 100%；
Second step, porous catchment sponge brick expand water suction serosity preparation: by the first step percentage by weight sample, first by particle diameter
Being that 50～100 m firefly Ore perforate cenospheres are put in feed bin, elevator send into distributing device, distributing device is by firefly Ore perforate
Cenosphere is evenly distributed on governing belt balance, and the sodium silicate of modulus 3.2～3.5 is uniformly sprayed at firefly Ore and opens by spray thrower
The outer surface of hole cenosphere, enters internal coiling drum agitation device with governing belt balance, and sodium silicate is inorganic bond, is hydrophilic
Type, cohesive force is strong, intensity is higher, acid resistance, heat-resist, and hydrophilicity does not affect caking property, compound be mud 15～
20wt%, particle diameter be 300～500 m firefly Ore perforate cenospheres 45～65wt%, the sodium silicate 5 of modulus 3.2～3.5～
15wt%, particle diameter are 100～200 m calcium oxide 3～5wt%, the flyash 5～7wt% of loss on ignition 1.1%, High hydrophilous resin fiber
0.5～5.0wt% and ceramic fibre 15～30wt%, compound to be sized mixing with the ratio of mud of 0.5～0.7, ash is compound, then adds
Entering the aluminium powder cream that compound gross weight is 0.2～1.5%, hydration reaction generates bubble, forms porous and expands the serosity of water suction, fall
The weight of low sponge brick, polyvinyl alcohol High hydrophilous resin fiber has extremely strong water absorption, the sponge brick comprcssive strength after water suction
Constant, ceramic fibre is hollow type, can increase the mechanical tenacity of sponge brick, moreover it is possible to make sponge brick formed multiple intersect in length and breadth micro-
Hole, micropore has stronger sound absorption function；
3rd step, porous are catchmented the preparation of sponge brick: the expansion water suction serosity prepared by second step stirs and pours sponge brick into
In the die trial of press, by 1.2～2.0:1 volume ratio compactings, ratio 1.2～2.0 is the volume before compacting, and ratio 1 is compacting
After volume, through striking off, suppressing, the demoulding, dry, a catchment face of sponge brick of the porous made is dovetail channel-shaped, porous collection
The moisture that water sponge brick absorbs enters in dovetail groove, and collector pipe embeds in dovetail groove, and rainwater catchments through porous the remittance of sponge brick
Collection, enters in dovetail groove, is flowed into collector pipe again by the effect of gravity, and the collector pipe sponge brick that single porous catchmented is connected to one
Rising, the rainwater that collector pipe collects enters in collecting-tank.
The preparation of firefly Ore perforate cenosphere: first firefly ore processing is become the particle diameter 100～300 spherical solid microbeads of m,
Boosted machine enters in 360～500 DEG C of preheating furnaces and preheats, and sloughs intermolecular Free water, retains intramolecular interior water, after preheating
Material entered cloth allotter by elevator again and distribute through uniform distribution, firefly Ore microballon after preheating enters sucking type perforate
In puffing furnace, through 800～900 DEG C of expansions, 1000～1400 DEG C of high temperature sinterings, air-flows from the bottom of sucking type perforate puffing furnace
In entrance stove, under the effect of the suction force of air-introduced machine, sucking type perforate expands the microballon after sintering and transports from the bottom of puffing furnace
Move top, through feed pipe to product feed bin, quickly cool down, form wall thickness 50～100 m, the firefly Ore of particle diameter 300～500 m
Perforate cenosphere, through high temperature sintering, forms thermally-denatured firefly Ores Ceramic material, and the component of material is different, modified
The chemical property of material is the most different, use the relatively low firefly Ore of iron oxide content as raw material, firefly Ore be mainly composed of fluorine
Change calcium, calcium oxide and calcium carbonate, chemical stability and heat stability, intensity is high, hardness is big, anti-stick, anti-soil, high temperature resistant, wear-resisting,
Pressure, fire-retardant, thermal coefficient of expansion is low, self-lubricating.
Calcium oxide hydration reaction, produces substantial amounts of heat, and it is as a form of gel for generating calcium hydroxide, with silicon oxide, aluminium oxide life
Becoming calcium silicates, calcium oxide is activator, the activity of excited cement.
Flyash is strong water absorbent, through high temperature sintering, has 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
In soil, increasing 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, reducing the temperature on sponge tile floor surface, the thermal capacity of water is big, and can absorb heat also can heat release.
The present invention has the following advantages.
1, preparation Materials Inorganic environment-friendly materials used by sponge brick, do not result in harm, the recyclable energy of sponge brick to environment
Secondary uses.
2, the resin fibre of preparation sponge brick flyash and the water suction of polyvinyl alcohol height is strong water absorbent, can absorb sponge brick table
The moisture in face enters internal, when reaching some, is fallen to entering in collector pipe by the effect of gravity.
3, in compound, add aluminium powder cream, form the serosity that porous expands, reduce the density of serosity.
4, toughened fiber strengthens sponge brick resistance to compression and fold resistance.
5, firefly Ore be mainly composed of calcium fluoride, calcium oxide and calcium carbonate, intensity is high, hardness is big, high temperature resistant, wear-resisting,
Pressure, fire-retardant, thermal coefficient of expansion is low, calcium carbonate high temperature sintering generate calcium oxide.
6, ceramic fibre is hollow type, can increase the mechanical tenacity of sponge brick, moreover it is possible to makes sponge brick be formed and multiple hands in length and breadth
The micropore of fork, micropore has stronger sound absorption function.
Accompanying drawing explanation
Fig. 1 is the axle geodesic structure schematic diagram of the sea brick of the embodiment of the present invention.
Fig. 2 is the end TV structure schematic diagram of the sea brick of the embodiment of the present invention.
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 in figure 1, sponge brick 2, dovetail groove 3, collector pipe.
Detailed description of the invention
Embodiment.
In embodiment as shown in Figures 1 to 3, sound absorption-type ceramic fibre firefly Ore is prepared porous and is catchmented the side of sponge brick
Method, the first step, the preparation of firefly Ore perforate cenosphere: first firefly ore processing is become the particle diameter 150 spherical solid microbeads of m, through carrying
The machine of liter enters in 500 DEG C of preheating furnaces and preheats, and sloughs intermolecular Free water, retains intramolecular interior water, and the material after preheating is again
Being entered cloth allotter by elevator to distribute through uniform distribution, the firefly Ore microballon after preheating enters sucking type perforate puffing furnace
In, enter in stove from the bottom of sucking type perforate puffing furnace, at air-introduced machine through 850 DEG C of expansions, 1100 DEG C of high temperature sinterings, air-flows
Suction force effect under, sucking type perforate expand sintering after microballon move to top from the bottom of puffing furnace, through feed pipe
To product feed bin, quickly cool down, form the firefly Ore perforate cenosphere of wall thickness 80 m, particle diameter 450 m, through high temperature sintering,
Form modified firefly Ores Ceramic material, firefly Ore be mainly composed of calcium fluoride, calcium oxide and calcium carbonate, intensity is high, hardness is big,
High temperature resistant, wear-resisting, pressure, fire-retardant, thermal coefficient of expansion is low, calcium carbonate high temperature sintering generate calcium oxide.
Second step, porous are catchmented the dispensing of sponge brick: cement 16wt%, particle diameter are 450 m firefly Ore perforate cenospheres
45wt%, the sodium silicate 12wt% of modulus 3.2, particle diameter are 150 m calcium oxide 3wt%, the flyash 7wt% of loss on ignition 1.1%, height are inhaled
Water-resin fiber 2.0wt% and ceramic fibre 15wt%.
3rd step, porous catchment sponge brick expand water suction serosity preparation: by the first step percentage by weight sample, first will
Particle diameter is that 450 m firefly Ore perforate cenospheres are put in feed bin, elevator send into distributing device, and distributing device is by firefly Ore perforate
Cenosphere is evenly distributed on governing belt balance, and it is empty that the sodium silicate of modulus 3.2 is uniformly sprayed at firefly Ore perforate by spray thrower
The outer surface of heart microballon, enters internal coiling drum agitation device with governing belt balance, is sized mixing with the ratio of mud of 0.6 by compound, then
Adding the aluminium powder cream that compound gross weight is 1.0%, hydration reaction generates bubble, forms the serosity that porous expands, and reduces sponge brick
Weight, polyvinyl alcohol High hydrophilous resin fiber has extremely strong water absorption, and the sponge brick comprcssive strength after water suction is constant, pottery
Fiber increases the mechanical tenacity of sponge brick, moreover it is possible to making sponge brick form multiple micropore intersected in length and breadth, micropore has the merit of sound-absorbing
Energy.
4th step, porous are catchmented the preparation of sponge brick: the expansion water suction serosity prepared by second step stirs and pours sea into
In the die trial of continuous brick press, suppressing by the volume ratio of 1.5:1, through striking off, suppressing, the demoulding, dry, the porous made is catchmented
One face of sponge brick 1 is dovetail groove 2 shape, and the porous moisture that sponge brick 1 absorbs that catchments enters in dovetail groove 2, in dovetail groove 2
Being installed with collector pipe 3, rainwater catchments the collecting of sponge brick 1 through porous, enters in dovetail groove 2, is flowed into by the effect of gravity again
Collector pipe 3, the collector pipe 3 sponge brick 1 that single porous catchmented links together, and the rainwater that collector pipe 3 collects enters in collecting-tank,
Through precipitation, filter, reuse.
The above, be only presently preferred embodiments of the present invention, is not the restriction that the present invention makees other form, appoints
What those skilled in the art changed possibly also with the technology contents of the disclosure above or be modified as equivalent variations etc.
Effect embodiment, every without departing from technical solution of the present invention content, according to the technical spirit of type of the present invention, above example is made
Any simple modification, equivalent variations and remodeling, still fall within the protection domain of type technical scheme of the present invention.
Claims (1)
1. sound absorption-type ceramic fibre firefly Ore is prepared porous and is catchmented the method for sponge brick, comprises the following steps:
The first step, porous are catchmented the dispensing of sponge brick: be that 300～500 m firefly Ore perforates are empty by cement 15～20wt%, particle diameter
Heart microballon 45～65wt%, the sodium silicate 5～15wt% of modulus 3.2～3.5, particle diameter be 100～200 m calcium oxide 3～5wt%,
The flyash 5～7wt% of loss on ignition 1.1%, High hydrophilous resin fiber 0.5～5.0wt% and ceramic fibre 15～30wt% sampling, with
The percentage by weight sum of upper each component is 100%；
Second step, porous catchment sponge brick expand water suction serosity preparation: by the first step percentage by weight sample, first by particle diameter
Being that 300～500 m firefly Ore perforate cenospheres are put in feed bin, elevator send into distributing device, firefly Ore is opened by distributing device
Hole cenosphere is evenly distributed on governing belt balance, and the sodium silicate of modulus 3.2～3.5 is uniformly sprayed at firefly Ore by spray thrower
The outer surface of perforate cenosphere, firefly Ore perforate cenosphere enters internal coiling drum agitation device with governing belt balance, will be mixed
Close material size mixing with the ratio of mud of 0.5～0.7, add compound gross weight be 0.2～1.5% aluminium powder cream stir, aluminium powder
Cream hydration reaction generates bubble, forms porous and expands the serosity of water suction；
3rd step, porous are catchmented the preparation of sponge brick: the expansion water suction serosity prepared by second step stirs and pours sponge brick into
In the die trial of press, through striking off, suppressing, the demoulding, drying, a catchment face of sponge brick (1) of the porous made is dovetail groove
(2) shape, collector pipe (3) embeds in dovetail groove (2), and rainwater catchments the collecting of sponge brick (1) through porous, enters dovetail groove (2)
In, then flowing into collector pipe (3), collector pipe (3) the sponge brick (1) that single porous catchmented links together, and collector pipe (3) collects
Rainwater enters in collecting-tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610518519.8A CN106186764B (en) | 2016-07-05 | 2016-07-05 | The method that sound absorption-type ceramic fibre firefly ore prepares the porous sponge brick that catchments |
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| CN201610518519.8A CN106186764B (en) | 2016-07-05 | 2016-07-05 | The method that sound absorption-type ceramic fibre firefly ore prepares the porous sponge brick that catchments |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106747102A (en) * | 2016-12-30 | 2017-05-31 | 达州天创新材料有限公司 | Mandruka concrete and its preparation technology |
| CN107860897A (en) * | 2017-11-21 | 2018-03-30 | 淄博职业学院 | Anti-pressure polyester fiber firefly ore prepares the well cementation test block performance test of oil well water-impervious |
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| JPH01161709A (en) * | 1987-12-17 | 1989-06-26 | Nec Corp | Laminated ceramic component |
| 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 |
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2016
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| 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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| 薛俊等: "以再生建筑混凝土为骨料制备透水砖", 《武汉工程大学学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106747102A (en) * | 2016-12-30 | 2017-05-31 | 达州天创新材料有限公司 | Mandruka concrete and its preparation technology |
| CN106747102B (en) * | 2016-12-30 | 2019-01-29 | 达州天创新材料有限公司 | Mandruka concrete and its preparation process |
| CN107860897A (en) * | 2017-11-21 | 2018-03-30 | 淄博职业学院 | Anti-pressure polyester fiber firefly ore prepares the well cementation test block performance test of oil well water-impervious |
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| Publication number | Publication date |
|---|---|
| CN106186764B (en) | 2018-03-27 |
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