CN105507103A - Lightweight high-strength water permeable brick with photocatalysis effect - Google Patents
Lightweight high-strength water permeable brick with photocatalysis effect Download PDFInfo
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- CN105507103A CN105507103A CN201610098216.5A CN201610098216A CN105507103A CN 105507103 A CN105507103 A CN 105507103A CN 201610098216 A CN201610098216 A CN 201610098216A CN 105507103 A CN105507103 A CN 105507103A
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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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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
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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
- 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
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00508—Cement paints
-
- 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
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
-
- 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
- C04B2111/2038—Resistance against physical degradation
- C04B2111/2061—Materials containing photocatalysts, e.g. TiO2, for avoiding staining by air pollutants or the like
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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
- 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
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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
- E01C2201/00—Paving elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Road Paving Structures (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a lightweight high-strength water permeable brick with a photocatalysis effect. The lightweight high-strength water permeable brick comprises a reverse osmosis layer, a water permeable layer and a photocatalysis layer in sequential distribution from bottom to top. The photocatalysis layer is coated with a cement-based material with a photocatalysis property; the water permeable layer is formed by pouring of ceramsite-doped regenerated lightweight aggregate concrete; the reverse osmosis layer is also formed by pouring of ceramsite-doped regenerated lightweight aggregate concrete. The lightweight high-strength water permeable brick structurally comprises three layers, namely the photocatalysis layer, the water permeable layer and the reverse osmosis layer, from top to bottom, and each of the three layers has certain porosity. The photocatalysis layer is capable of effectively treating motor vehicle exhaust; the water permeable layer is effective in water drainage; the reverse osmosis layer is effective in reduction of influences of the heat island effect on the environment.
Description
Technical field
The present invention relates to building material technical field, particularly relate to a kind of light-duty high-strength water-permeable brick with photocatalysis effect.
Background technology
Along with the development of China's construction industry and the universal of automobile, a large amount of construction of the rigid pavement in city, for the city that drainage infrastructure is poor, are easy to cause urban waterlogging in rainy season, bring serious impact to the life of townsfolk.Easily heat island effect is produced when summer temperature is high.In addition on the one hand, concrete or flexible pavement color dull, for drive or pedestrian is easy to produce visual fatigue.And being on the increase along with motor vehicles such as automobiles, the Tail Gas of generation gets more and more, and motor-vehicle tail-gas is the main cause causing city haze, but, traditional concrete for pernicious gas, helpless.
Although current pervious concrete, pervious asphalt concrete and water-permeable brick on the market can be discharged water, but DeGrain, for the Tail Gas that automobile produces, can not effectively process, and can not effectively utilize the grade of building waste to the material of environmental danger, existing water-permeable brick density is large simultaneously, and transport trouble, consumes energy larger.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of light-duty high-strength water-permeable brick with photocatalysis effect, it is divided into three layer construction from top to bottom, photocatalysis layer, pervious layer and reverse osmosis permeable layers respectively, effectively can process motor-vehicle tail-gas, three layers all have certain porosity, can effectively draining, reduce the impact of the environment of heat island effect.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of light-duty high-strength water-permeable brick with photocatalysis effect, comprise the reverse osmosis permeable layers, pervious layer and the photocatalysis layer that distribute successively from bottom to top, described photocatalysis layer adopts the cement-based material cast with photocatalysis performance, and described pervious layer and reverse osmosis permeable layers all adopt the regeneration light weight aggregate concrete doped with haydite to pour into a mould.
Photocatalysis layer thickness is 0.5cm-0.8cm, and porosity is 20%-25%, and catalysis material and water-fast pigment are uniformly distributed, and catalysis material is 4-6g/m
2, carry out spraying after being mixed with high abrasion cement and silicate of soda by catalysis material and fix, water/binder ratio 0.28, water reducing agent volume is the 0.7%-0.9% of cementitious material weight, and catalysis material is bismoclite or rare earth mixing with nano titanium dioxide.
Described pervious layer thickness is 3cm-7cm, porosity is 30%-50%, comprise the following material of parts by weight to add water and mix, wherein: High Strength Cement-Based Materials 10-15 part, building waste 4-6 part based on brickbat, wherein particle diameter be 5-10mm account for 2-3 part, particle diameter be 10-15mm account for 3-4.5 part, also comprise haydite 3-5 part, described High Strength Cement-Based Materials is mixed by the material of following parts by weight, wherein Portland cement 60-80 part, silicon ash 14-16 part, water reducing agent 2-3 part, sulphate aluminium cement 2-3 part and fiber 10-12 part, water reducing agent volume is the 7%-9% of cementitious material weight.
Described counter-infiltration layer thickness is 1cm-2cm, porosity is 15%-20%, comprise the following material of parts by weight to add water and mix, wherein: High Strength Cement-Based Materials 2-3 part, particle diameter is the building waste based on brickbat of 5-10mm is 2-4 part, haydite is 3-5 part, described High Strength Cement-Based Materials is mixed by the material of following parts by weight, wherein Portland cement 60-80 part, silicon ash 14-16 part, water reducing agent 2-3 part, sulphate aluminium cement 2-3 part and fiber 10-12 part, water reducing agent volume is the 7%-9% of cementitious material weight.
Described haydite is lytag or coal gangue haydite, and the particle diameter of haydite is 3mm-7mm.
The beneficial effect adopting technique scheme to produce is: it is divided into three layer construction from top to bottom, photocatalysis layer respectively, pervious layer and reverse osmosis permeable layers, photocatalysis layer has good photocatalysis effect, effectively can process motor-vehicle tail-gas, pervious layer utilizes regeneration light weight aggregate concrete, there is larger porosity, facilitate draining, three layer construction adopts different porosity respectively, when the water yield is large, can effectively draining, high in temperature, comparatively when arid, the water that water-permeable brick itself holds can be discharged, adjusting air humidity, reduce heat island effect to the impact of environment, in addition on the one hand, pervious layer in the present invention and reverse osmosis permeable layers all adopt regeneration light weight aggregate concrete, effective by building waste reuse while, the density of water-permeable brick own can also be alleviated to a certain extent, reduce deadweight, be convenient to transport.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In the accompanying drawings: 1, photocatalysis layer; 2, pervious layer; 3, reverse osmosis permeable layers.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Set forth a lot of detail in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar popularization when intension of the present invention, therefore the present invention is by the restriction of following public specific embodiment.
As shown in Figure 1, the invention discloses a kind of light-duty high-strength water-permeable brick with photocatalysis effect, comprise the reverse osmosis permeable layers 3, pervious layer 2 and the photocatalysis layer 1 that distribute successively from bottom to top, described photocatalysis layer 1 adopts the cement-based material spraying with photocatalysis performance, and described pervious layer 2 and reverse osmosis permeable layers 3 all adopt the regeneration light weight aggregate concrete doped with haydite to pour into a mould; Described reverse osmosis permeable layers 3 bottom surface is provided with decorative pattern, and reverse osmosis permeable layers 3 thickness is 1-2cm, and porosity is 15%-20%, and the thickness of described pervious layer 2 is 3-7cm, and porosity is 30%-35%, and the thickness of described photocatalysis layer 1 is 0.5-0.8cm, and porosity is 20%-25%; In described pervious layer 2, the particle diameter of the haydite of doping is 3-7mm, and the particle diameter of the building waste based on brickbat is 5-10mm.
In embody rule process, photocatalysis layer thickness in the present invention is 0.5cm-0.8cm, porosity is 20%-25%, catalysis material and water-fast pigment are evenly distributed on this layer, light urges material to be approximately 4-6g/m2, the cement-based material with photocatalysis performance formed after being mixed with high abrasion cement and silicate of soda by catalysis material carries out spraying to be fixed, water/binder ratio about 0.28, water reducing agent volume is the 0.7%-0.9% of cementitious material quality, the catalysis material that can adopt comprises bismoclite or rare earth mixing with nano titanium dioxide, also other can be adopted to have the catalysis material of visible light catalytic performance.
Pervious layer thickness is 3cm-7cm, porosity is 30%-35%, be mainly lytag, building waste based on brickbat and high strength cement sill composition, the particle diameter of haydite is 3mm-7mm, the particle diameter of the building waste particle based on brickbat has 5-10mm and 10-15mm two kinds, two kinds mix by 2:3, the component of High Strength Cement-Based Materials is Portland cement 60-80 part (parts by weight), silicon ash 14-16 part (parts by weight), water reducing agent 2-3 part (parts by weight), sulphate aluminium cement 2-3 part (parts by weight) and fiber 10-12 part (parts by weight), water reducing agent volume is the 0.7%-0.9%(percentage by weight of cementitious material quality).
During High Strength Cement-Based Materials mixing, first High Strength Cement-Based Materials is mixed, add the mixing water of half, stir 60 seconds, then add the building waste particle based on brickbat mixed in proportion, stir 120 seconds, remaining mixing water is added, stir 60 seconds, water-cement ratio controls about 0.3 again.
The High Strength Cement-Based Materials of pervious layer accounts for 10-15 part (parts by weight), is left for aggregate.The building waste particle based on brickbat as aggregate has two kinds, wherein particle diameter be 5-10mm account for 2-3 part (parts by weight), particle diameter be 10-15mm account for 3-4.5 part (parts by weight), haydite accounts for 3-5 part (parts by weight).
The thickness of reverse osmosis permeable layers is 1cm-2cm, porosity is 15%-20%, certain decorative pattern is made in its bottom surface, to increase friction, the key component of reverse osmosis permeable layers is identical with pervious layer, High Strength Cement-Based Materials in reverse osmosis permeable layers accounts for 2-3 part (parts by weight), be left for aggregate, the particle diameter of the building waste particle based on brickbat is 5-10mm, building waste particle based on brickbat accounts for 2-4 part (parts by weight), haydite 3-5 part (parts by weight), haydite adopts lytag, also can adopt the haydite of other kinds.
Water-permeable brick involved in the present invention is divided into three layers, first reverse osmosis permeable layers is prepared, pervious layer is prepared when the cement matrix slurry body of reverse osmosis permeable layers reaches initial set time, when the cement based slurry of pervious layer reaches initial set, prepare photocatalysis layer, namely spray fixed light catalysis material, customize color and the pattern of needs as required.
In order to ensure functional performance of the present invention, the present embodiment carries out performance test by preparing platy structure, and detailed process is as follows:
Because test block is sandwich construction, adopt weighing respectively, stir respectively, the method that specific resistance to compression mould once pressurizes is shaping, and briquetting pressure is about 4MPa.
With covered rearing with plastic film mould and test specimen after shaping, by the test specimen demoulding after 12 hours, be placed in indoor shady and cool place, with covered rearing with plastic film, water every day once, implement nourishment.Also high-temperature steam curing can be adopted.
Main performance test:
1. the test specimen in test adopts two kinds of sizes, the test specimen of 200mm*100mm*60mm, for compressive strength, rupture strength test determination.The test specimen of 100mm*100mm*100mm, for measuring water permeability and the anti-freezing property of permeable concrete, adopting and freezing method test slowly.
Within 28 days, rupture strength can reach 7MPa
Within 28 days, compressive strength can reach 45MPa.
28 days water permeabilities: coefficient of permeability is 6.76cm/s.
Through 35 Frozen-thawed cycled, mass loss rate is 0.5%, and compressive strength loss late is less than 25%.
2. photocatalysis effect, adopts rare earth mixing with nano titanium dioxide.And be prepared into the template test specimen of 60mm × 100mm × 200mm.After form removal, after maintenance template test specimen 7d, the nano titanium oxide solution spraying prepared to template surface of test piece, solution titanium dioxide concentration is 9g/L.The volume of spray solution is 100mL.Then Photocatalytic Degradation of Methyl Orange experiment is carried out.
Photocatalysis performance is tested: first test specimen is cut into 30mm × 50mm × 100mm small sample, the fluorescence lamp of 20W is adopted to do catalysis light source, using methyl orange as catalytic degradation object, adopting spectrophotometer, is that 443nm place surveys absorbance at wavelength, and according to calibration curve conversion methyl orange solution concentration, thus draw the degradation rate of methyl orange, evaluate light-catalysed effect good and bad, through 40 hours, methyl orange was degraded.
In a word, the present invention is divided into three layer construction from top to bottom, photocatalysis layer respectively, pervious layer and reverse osmosis permeable layers, photocatalysis layer has good photocatalysis effect, effectively can process motor-vehicle tail-gas, pervious layer utilizes regeneration light weight aggregate concrete, there is larger porosity, facilitate draining, three layer construction adopts different porosity respectively, when the water yield is large, can effectively draining, high in temperature, comparatively when arid, the water that water-permeable brick itself holds can be discharged, adjusting air humidity, reduce heat island effect to the impact of environment, in addition on the one hand, pervious layer in the present invention and reverse osmosis permeable layers all adopt regeneration light weight aggregate concrete, effective by building waste reuse while, the density of water-permeable brick own can also be alleviated to a certain extent, reduce deadweight, be convenient to transport.
Claims (5)
1. one kind has the light-duty high-strength water-permeable brick of photocatalysis effect, it is characterized in that: comprise the reverse osmosis permeable layers (3), pervious layer (2) and the photocatalysis layer (1) that distribute successively from bottom to top, described photocatalysis layer (1) adopts the cement-based material cast with photocatalysis performance, and described pervious layer (2) and reverse osmosis permeable layers (3) all adopt the regeneration light weight aggregate concrete doped with haydite to pour into a mould.
2. the light-duty high-strength water-permeable brick with photocatalysis effect according to claim 1, it is characterized in that: photocatalysis layer (1) thickness is 0.5cm-0.8cm, porosity is 20%-25%, and catalysis material and water-fast pigment are uniformly distributed, and catalysis material is 4-6g/m
2, carry out spraying after being mixed with high abrasion cement and silicate of soda by catalysis material and fix, water/binder ratio 0.28, water reducing agent volume is the 0.7%-0.9% of cementitious material weight, and catalysis material is bismoclite or rare earth mixing with nano titanium dioxide.
3. the light-duty high-strength water-permeable brick with photocatalysis effect according to claim 2, it is characterized in that: described pervious layer (2) thickness is 3cm-7cm, porosity is 30%-50%, comprise the following material of parts by weight to add water and mix, wherein: High Strength Cement-Based Materials 10-15 part, building waste 4-6 part based on brickbat, wherein particle diameter be 5-10mm account for 2-3 part, particle diameter be 10-15mm account for 3-4.5 part, also comprise haydite 3-5 part, described High Strength Cement-Based Materials is mixed by the material of following parts by weight, wherein Portland cement 60-80 part, silicon ash 14-16 part, water reducing agent 2-3 part, sulphate aluminium cement 2-3 part and fiber 10-12 part, water reducing agent volume is the 7%-9% of cementitious material weight.
4. the light-duty high-strength water-permeable brick with photocatalysis effect according to claim 2, it is characterized in that: described reverse osmosis permeable layers (3) thickness is 1cm-2cm, porosity is 15%-20%, comprise the following material of parts by weight to add water and mix, wherein: High Strength Cement-Based Materials 2-3 part, particle diameter is the building waste based on brickbat of 5-10mm is 2-4 part, haydite is 3-5 part, described High Strength Cement-Based Materials is mixed by the material of following parts by weight, wherein Portland cement 60-80 part, silicon ash 14-16 part, water reducing agent 2-3 part, sulphate aluminium cement 2-3 part and fiber 10-12 part, water reducing agent volume is the 7%-9% of cementitious material weight.
5. the light-duty high-strength water-permeable brick with photocatalysis effect according to claim 3 or 4, is characterized in that: described haydite is lytag or coal gangue haydite, and the particle diameter of haydite is 3mm-7mm.
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| CN201610098216.5A CN105507103B (en) | 2016-02-23 | 2016-02-23 | Light-duty high-strength water-permeable brick with photocatalysis effect |
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| CN105507103B CN105507103B (en) | 2018-06-15 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106007499A (en) * | 2016-05-17 | 2016-10-12 | 广州世正环保科技发展有限公司 | Water-retention light grass planting brick and production method thereof |
| CN106220085A (en) * | 2016-07-12 | 2016-12-14 | 绍兴职业技术学院 | A kind of high intensity high water-permeability pavior brick and preparation method thereof |
| CN106938199A (en) * | 2017-02-27 | 2017-07-11 | 河海大学 | A kind of visible light-responded photocatalysis porous brick |
| CN107226662A (en) * | 2017-06-02 | 2017-10-03 | 中国冶集团有限公司 | A kind of large dosage heavy blast furnace slag complex sand base water-permeable brick and its high efficiency preparation method |
| CN107352971A (en) * | 2017-03-02 | 2017-11-17 | 潘映昆 | A kind of method and water-permeable brick for making water-permeable brick |
| CN107759148A (en) * | 2017-09-14 | 2018-03-06 | 宁波市景廷建材科技有限公司 | A kind of geo-polymer lightweight aggregate water-permeable brick and preparation method thereof |
| CN108191331A (en) * | 2017-12-22 | 2018-06-22 | 天津市建筑科学研究院有限公司 | A kind of cleanable permeable hollow kerbstone for accepting runoff |
| CN108505498A (en) * | 2018-04-04 | 2018-09-07 | 河海大学 | A kind of photocatalysis and biological cleaning integral type ecological revetment building block and preparation method thereof |
| CN108516758A (en) * | 2018-04-04 | 2018-09-11 | 保山保农农业开发股份有限公司 | A kind of farmland drainage ditch colorful water-permeable brick body |
| CN110681215A (en) * | 2019-10-17 | 2020-01-14 | 河海大学 | Photocatalytic composite filter disc with water quality purification function and preparation method thereof |
| CN111518441A (en) * | 2020-05-21 | 2020-08-11 | 中冶南方城市建设工程技术有限公司 | Visible light catalysis water permeable brick and manufacturing method and application thereof |
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| CN106007499A (en) * | 2016-05-17 | 2016-10-12 | 广州世正环保科技发展有限公司 | Water-retention light grass planting brick and production method thereof |
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