CN114591036A - Zeolite-based geopolymer ecological building block material and building block manufacturing method - Google Patents
Zeolite-based geopolymer ecological building block material and building block manufacturing method Download PDFInfo
- Publication number
- CN114591036A CN114591036A CN202210224423.6A CN202210224423A CN114591036A CN 114591036 A CN114591036 A CN 114591036A CN 202210224423 A CN202210224423 A CN 202210224423A CN 114591036 A CN114591036 A CN 114591036A
- Authority
- CN
- China
- Prior art keywords
- zeolite
- ecological
- water
- based geopolymer
- sodium hydroxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/006—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mineral polymers, e.g. geopolymers of the Davidovits type
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00793—Uses not provided for elsewhere in C04B2111/00 as filters or diaphragms
-
- 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
-
- 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
- C04B2111/74—Underwater applications
-
- 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)
- Ceramic Engineering (AREA)
- Engineering & Computer Science (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to a zeolite-based geopolymer ecological building block material and a building block manufacturing method. The zeolite powder sand is used for replacing natural sand stones, so that the adsorption performance of the ecological building blocks is enhanced, the fly ash is added, the solid waste is recycled, the porous ecological building blocks can adsorb ammonia nitrogen in water, and the ecological building blocks have wide application prospects in ecological management of riverway water environment, eutrophication water body purification and riverbank greening.
Description
Technical Field
The invention belongs to the technical field of ecological restoration of environmental engineering water bodies, and relates to a zeolite-based geopolymer ecological building block material and a building block manufacturing method.
Background
In recent years, with the development of social economy and urbanization, the environmental pollution conditions of rivers, lakes and reservoir water in China become more and more serious. The research on how to prevent and treat water pollution and the repair technology of the polluted water becomes the key point of water environment protection research. In the later stage of the 20 th century in the 60 th year, western developed countries such as germany and switzerland have deeply realized that concrete revetment is the root cause of river pollution, the ecological principle is applied to civil engineering, experimental research for recovering the ecological system of the damaged river bank is started, and a 'natural revetment' technology is proposed at the end of the 80 th century; in the 20 th century, in 90 s of Germany, America, Japan, France, Switzerland, Austria, the Netherlands and other countries, the built concrete riverway is dismantled on a large scale and is subjected to ecological restoration. The work in this area in the united states and japan is active and productive, and the ecological environment of the river banks is well restored. Among them, japan first proposed the concept of "hydrophilic", applied the ecological slope protection technology to the construction of urban river channels, and practiced, and promoted ecological concrete. Although the problem of river bank pollution caused by concrete bank protection is solved by adopting the ecological concrete, the adsorption capacity of the ecological concrete to ammonia nitrogen in river water is poor, and the ecological concrete does not have a good water quality purification effect. Therefore, an ecological block with a good ammonia nitrogen adsorption effect is urgently needed to realize the evolution of the eutrophic water body and the greening of the river bank.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a zeolite-based geopolymer ecological block material and a block manufacturing method, wherein natural zeolite and fly ash are used as raw materials to prepare an ecological block, the ecological block has two functions of plant growth and water purification, and has wide engineering application prospect for purifying eutrophic water bodies and greening river banks when being applied to river channel ecological buffer zones, rhombic river channel wetlands and the like.
The invention provides a zeolite-based geopolymer ecological block material, wherein the ecological block is cast by using a zeolite-based geopolymer material, and each cubic meter of the zeolite-based geopolymer ecological block material comprises the following components in percentage by weight: 525kg of fly ash, 525kg of zeolite f powder sand material, 1950kg of aggregate, 750kg of water and 150kg of alkali activator.
In the zeolite-based geopolymer ecological block material, the fly ash is a substance generated after sludge in a sewage plant is burnt, the water content of the fly ash is 20-30%, and the fly ash mainly contains SiO2、CaO、Fe2O3、Al2O3、SO3、P2O5、K2O and MgO.
In the zeolite-based geopolymer ecological block material, the particle size of the zeolite powder sand material is 2-10 mm.
In the zeolite-based geopolymer ecological building block material, the particle size of the aggregate is 5-20 mm, and the aggregate is limestone macadam.
In the zeolite-based geopolymer ecological block material, the alkali activator is formed by mixing a sodium hydroxide solution and sodium silicate, firstly, the sodium hydroxide is mixed with water until the sodium hydroxide is completely dissolved and the solution is cooled to room temperature, the concentration of the sodium hydroxide is 7.5mol/L through preliminary orthogonal experimental research, and the mass ratio of the sodium silicate to the sodium hydroxide is 3: 1.
in the zeolite-based geopolymer ecological block material, sodium hydroxide is chemically pure sodium hydroxide flaky solid with the purity of 97 percent; the sodium silicate is liquid sodium silicate with modulus of 3.1-3.4 and SiO2Content 26% Na2The O content is 8.2%.
In the zeolite-based geopolymer ecological block material, the water is subjected to ecological treatment in a river water environment to purify eutrophic water.
The invention also provides a method for manufacturing the zeolite-based geopolymer ecological building block, which comprises the following steps:
step 1: the zeolite-based geopolymer material comprises, per cubic meter: preparing raw materials of 525kg of fly ash, 525kg of zeolite sand material, 1950kg of aggregate, 750kg of water and 150kg of alkali activator;
step 2: pouring the fly ash into a stirrer and uniformly stirring;
and step 3: then adding zeolite powder and aggregate to continue stirring;
and 4, step 4: pouring the alkali activator which is stirred uniformly in advance into a stirrer, adding a proper amount of water, and fully stirring;
and 5: pouring the stirred mixture by using a special biological block steel mould, covering the top of the mould by using a steel plate, and quickly sealing the edge after pouring is finished so as to avoid the loss of water in the test piece;
and 6: and (3) standing the test piece at room temperature for 60min, and then performing high-temperature curing by using an electric furnace, wherein the curing temperature ranges from 120 ℃ to 140 ℃, and the high-temperature curing time ranges from 60 hours to 72 hours.
In the manufacturing method of the zeolite-based geopolymer ecological block, the special biological block steel mould is in a CFG ground pile type, a mortise and tenon type, a modular assembly type or a honeycomb type.
The zeolite-based geopolymer ecological building block material and the building block manufacturing method have the following beneficial effects:
the ecological block material is prepared from limestone macadam, fly ash which is a sludge incineration product, natural zeolite silt and reclaimed water serving as raw materials, uniformly stirring, and then casting and molding by using a molding die to obtain an ecological block product with activated carbon-shaped continuous communication structural pores. The finished product is cheap, zeolite powder sand is used for replacing common natural sandstone, the adsorption performance of the ecological building block is enhanced, the fly ash which is a sludge incineration product is added, the solid waste is recycled, and the porous ecological building block can adsorb ammonia nitrogen in water, so that the porous ecological building block has wide application prospects in ecological management of riverway water environment, eutrophication water purification and riverbank greening.
Drawings
FIG. 1 is a scanning electron micrograph of a zeolite-based geopolymer eco-block material of the present invention;
FIG. 2 is a practical application case of the zeolite-based geopolymer ecological block material in Zhangwu county in Liaoning province.
Detailed Description
The invention belongs to the technical field of ecological environment engineering water body restoration, and provides a novel material of an ecological building block for ecological ditch construction, biological slope protection and the like. The method is suitable for filling the substrate of the ecological buffer zone of rivers and lakes, the wetland channels and the retaining walls of rhombic river channels, and the like. The ecological building block consists of two parts, one part is a building block body with a planting groove, the other part is an additive in the planting groove, and the additive in the planting groove consists of a mixture matrix and plant seeds which can retain water and ventilate, can supply plant nutrition for a long time, has certain strength and is beneficial to plant growth.
The zeolite-based geopolymer ecological block material comprises the following components in each cubic meter of ecological block material: 525kg of fly ash, 525kg of zeolite f powder sand material, 1950kg of aggregate, 750kg of water and 150kg of alkali activator.
In specific implementation, the fly ash is a substance generated by incinerating sludge in a sewage plant, the water content of the fly ash is 20-30%, and the fly ash mainly comprises SiO2, CaO, Fe2O3, Al2O3, SO3, P2O5, K2O and MgO.
In the specific implementation, the particle size of the zeolite sand material is 2-10 mm.
In specific implementation, the particle size of the aggregate is 5-20 mm, and the aggregate is limestone macadam.
In specific implementation, the alkali activator is formed by mixing a sodium hydroxide solution and sodium silicate, firstly, the sodium hydroxide is mixed with water until the sodium hydroxide is completely dissolved and the solution is cooled to room temperature, the concentration of the sodium hydroxide is 7.5mol/L through preliminary orthogonal experimental research, and the mass ratio of the sodium silicate to the sodium hydroxide is 3: 1.
in specific implementation, the sodium hydroxide is a chemical pure sodium hydroxide flaky solid with the purity of 97 percent; the sodium silicate is liquid sodium silicate with modulus of 3.1-3.4 and SiO2Content 26% Na2The O content is 8.2 percent.
In specific implementation, the water is reclaimed water of a sewage plant.
The invention relates to a method for manufacturing a zeolite-based geopolymer ecological building block, which comprises the following steps:
step 1: the zeolite-based geopolymer material comprises, per cubic meter: 525kg of fly ash, 525kg of zeolite f powder sand material, 1950kg of aggregate, 750kg of water and 150kg of alkali activator;
and 2, step: pouring the fly ash into a stirrer and uniformly stirring;
and step 3: then adding zeolite powder and aggregate to continue stirring;
and 4, step 4: pouring the alkali activator which is stirred uniformly in advance into a stirrer, adding a proper amount of water, and fully stirring;
and 5: pouring the stirred mixture by using a special biological block steel mould, covering the top of the mould by using a steel plate, and quickly sealing the edge after pouring is finished so as to avoid the loss of water in the test piece;
and 6: and (3) standing the test piece at room temperature for 60min, and then performing high-temperature curing by using an electric furnace, wherein the curing temperature ranges from 120 ℃ to 140 ℃, and the high-temperature curing time ranges from 60 hours to 72 hours.
When the concrete implementation is carried out, the special biological block steel mould is in a CFG ground pile type, a mortise and tenon type, a modularized assembly type or a honeycomb type.
In order to understand the influence of aggregate quality, fly ash quality, zeolite powder quality and sodium hydroxide concentration on the comprehensive application of the zeolite-geopolymer ecological block material, a response surface experiment is carried out, and specific experimental data are shown in the following table:
the experimental results show that the aggregate quality and the sodium hydroxide concentration have small influence on the ammonia absorption value, the zeolite powder quality and the coal ash quality have large influence on the ammonia absorption value, and the comprehensive analysis reason is that the coal ash and the zeolite are both porous silicon-aluminum inorganic nonmetallic materials, and the materials have double functions of molecular sieve fixation and oxidation-reduction reaction under the limit condition to remove ammonia nitrogen in the water body, so that the water body pollution degree can be effectively reduced and the water body eutrophication phenomenon can be reduced by applying the materials to the water body ecological building blocks.
According to the analysis of experimental results, 525kg of fly ash and zeolite powder are added into each square zeolite-based geopolymer ecological block material. According to experimental results, the aquatic plant transplanting survival rate is influenced by excessively high sodium hydroxide concentration, but the aquatic plant transplanting survival rate is not obviously influenced after the sodium hydroxide concentration is reduced to 7.5mol/L, and the sodium hydroxide concentration is 7.5mol/L when the zeolite-based geopolymer ecological building block material is prepared by combining the positive influence of the alkali activator on the formation of geopolymer.
Common ecological building block materials are mainly made of concrete or sand and stone materials, the strength is high, but the porosity of an internal structure is low, pollutants in a water body cannot be effectively adsorbed or removed, and the energy consumption in the production process of the concrete material is high, so that the concrete material does not belong to a green low-energy-consumption material. The zeolite-geopolymer ecological building block is manufactured without a firing process, so that the production energy consumption of the material is greatly reduced, and part of production raw materials are common building waste materials, so that the waste is treated by the waste, and the zeolite-geopolymer ecological building block is green and environment-friendly. As can be seen from a scanning electron microscope image of the zeolite-based geopolymer ecological block material disclosed by the invention shown in figure 1, a regular porous crystal structure is formed in the material disclosed by the invention, the crystal has larger gaps and clear edges and corners, and the structure has physical strength and is favorable for ammonia nitrogen adsorption.
The invention relates to a zeolite-based geopolymer ecological building block material, which is a green environment-friendly material with the stability of inorganic non-metallic materials and the porous adsorption of zeolite and activated carbon materials. The natural zeolite and the fly ash are used as raw materials to prepare the ecological building block, the ecological building block has two functions of plant growth and water purification, and has wide engineering application prospect for purifying eutrophic water and greening river banks when being applied to the situations of ecological buffer zones of river channels, rhombic river channel wetlands and the like. Fig. 2 shows a practical application case of the zeolite-based geopolymer ecological block material in the county of major in liaoning province. The ecological building blocks of the invention are properly combined and built into intercepting ditches, drainage ditches, diversion ditches and the like, plants can germinate within one week after proper maintenance, and the ecological building blocks become ecological ditches and other ecological structures which are covered by plants and are coordinated with the periphery in about 3 months.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, which is defined by the appended claims.
Claims (9)
1. A zeolite-based geopolymer ecological block material is characterized in that each cubic meter of the ecological block material contains: 525kg of fly ash, 525kg of zeolite powder sand material, 1950kg of aggregate, 750kg of water and 150kg of alkali activator.
2. The zeolite-based geopolymer ecological block material as claimed in claim 1, wherein the fly ash is a substance generated by incinerating sludge of a sewage plant, has a water content of 20-30%, and mainly comprises SiO2、CaO、Fe2O3、Al2O3、SO3、P2O5、K2O and MgO.
3. The zeolite-based geopolymer ecological block material as claimed in claim 1, wherein the zeolite powder sand material has a particle size of 2-10 mm.
4. The zeolite-based geopolymer ecological block material as claimed in claim 1, wherein the aggregate has a particle size of 5-20 mm, and limestone macadam is used as the aggregate.
5. The zeolite-based geopolymer ecological block material as claimed in claim 1, wherein the alkali activator is prepared by mixing sodium hydroxide solution and sodium silicate, firstly mixing sodium hydroxide with water until the sodium hydroxide is completely dissolved and the solution is cooled to room temperature, and the concentration of sodium hydroxide is 7.5mol/L, and the mass ratio of sodium silicate to sodium hydroxide is 3: 1.
6. zeolite-based geopolymer ecological masonry as claimed in claim 5A bulk material characterized in that the sodium hydroxide used is a chemically pure sodium hydroxide flake solid with a purity of 97%; the sodium silicate is liquid sodium silicate with modulus of 3.1-3.4 and SiO2Content 26% Na2The O content is 8.2%.
7. The zeolite-based geopolymer ecological block material according to claim 1, characterized in that said water is sewage plant recycled water.
8. A method for manufacturing zeolite-based geopolymer ecological building blocks is characterized by comprising the following steps:
step 1: the zeolite-based geopolymer material contains per cubic meter: preparing raw materials of 525kg of fly ash, 525kg of zeolite sand material, 1950kg of aggregate, 750kg of water and 150kg of alkali activator;
step 2: pouring the fly ash into a stirrer and uniformly stirring;
and step 3: then adding zeolite powder and aggregate to continue stirring;
and 4, step 4: pouring the alkali activator which is stirred uniformly in advance into a stirrer, adding a proper amount of water, and fully stirring;
and 5: pouring the stirred mixture by using a special biological block steel mould, covering the top of the mould by using a steel plate, and quickly sealing the edge after pouring is finished so as to avoid the loss of water in the test piece;
step 6: and (3) standing the test piece at room temperature for 60min, and then performing high-temperature curing by using an electric furnace, wherein the curing temperature ranges from 120 ℃ to 140 ℃, and the high-temperature curing time ranges from 60 hours to 72 hours.
9. The method for manufacturing zeolite-based geopolymer ecological blocks according to claim 8, wherein the special biological block steel mold is of a CFG ground pile type, a mortise and tenon type, a modular assembly type or a honeycomb type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210224423.6A CN114591036A (en) | 2022-03-09 | 2022-03-09 | Zeolite-based geopolymer ecological building block material and building block manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210224423.6A CN114591036A (en) | 2022-03-09 | 2022-03-09 | Zeolite-based geopolymer ecological building block material and building block manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114591036A true CN114591036A (en) | 2022-06-07 |
Family
ID=81807352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210224423.6A Withdrawn CN114591036A (en) | 2022-03-09 | 2022-03-09 | Zeolite-based geopolymer ecological building block material and building block manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114591036A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104003676A (en) * | 2014-05-19 | 2014-08-27 | 大连理工大学 | Sludge-zeolite water purification type ecological concrete and preparation method thereof |
| JP2016135723A (en) * | 2015-01-23 | 2016-07-28 | 国立大学法人山口大学 | Porous geopolymer hardened body |
| CN113562997A (en) * | 2021-07-30 | 2021-10-29 | 上海国惠环境科技股份有限公司 | Method for producing geopolymer by using sludge incineration ash |
-
2022
- 2022-03-09 CN CN202210224423.6A patent/CN114591036A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104003676A (en) * | 2014-05-19 | 2014-08-27 | 大连理工大学 | Sludge-zeolite water purification type ecological concrete and preparation method thereof |
| JP2016135723A (en) * | 2015-01-23 | 2016-07-28 | 国立大学法人山口大学 | Porous geopolymer hardened body |
| CN113562997A (en) * | 2021-07-30 | 2021-10-29 | 上海国惠环境科技股份有限公司 | Method for producing geopolymer by using sludge incineration ash |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105970979B (en) | A kind of ecological bank protecting method based on utilizing solidified earth from sludge | |
| Cheng | Reuse research progress on waste clay brick | |
| CN104909460B (en) | Porosity denitrogenation dephosphorizing filler for artificial swamp and preparation method thereof | |
| CN102173850B (en) | Energy-saving consumption-reducing technique for preparing haydite by co-disposing polluted soil and desilting sediment | |
| CN112301952B (en) | Preparation method of ecological revetment based on dredged mud in-situ solidification | |
| CN107021778B (en) | Plant-growing pervious concrete system for realizing sludge recycling treatment and preparation method thereof | |
| CN101607810B (en) | Wastewater treatment composite filler containing zeolite and pulverized fuel ash and preparation method thereof | |
| CN107721270B (en) | Method for preparing non-sintered water permeable brick by using municipal sludge | |
| CN103833298B (en) | Slop protection material and preparation method thereof | |
| WO2021219058A1 (en) | Recycled material floor tile and preparation method therefor | |
| CN112174625B (en) | Environment-friendly dredged sludge modifier and preparation method thereof | |
| KR101344922B1 (en) | Moss brick for purifying water and method for preparing the same | |
| LU500812B1 (en) | Preparation method of ecological pervious concrete of bank protection material for coastal wetlands | |
| CN114163174B (en) | Solid waste base modified cementing material and application thereof | |
| CN114262206A (en) | Alkali-activated concrete prepared from cement wastewater | |
| CN108706944B (en) | Phosphogypsum light board prepared from barium slag and preparation method thereof | |
| CN116253555B (en) | Industrial sludge-based full-solid waste water permeable brick and preparation method thereof | |
| CN102951887A (en) | Red mud-added ecological concrete and application of same in sewage purification | |
| CN112889624A (en) | Greening soil prepared from construction waste and preparation method and application thereof | |
| CN110698122B (en) | Ecological light filler and preparation method thereof | |
| CN114591036A (en) | Zeolite-based geopolymer ecological building block material and building block manufacturing method | |
| CN111018415A (en) | Concrete produced by using fly ash obtained by burning and curing industrial waste residues and wastes to replace natural sand and preparation method thereof | |
| CN1238275C (en) | Filter material having phosphor adsorbing and biological membrane function and its preparing method | |
| CN112358255A (en) | Environment-friendly water permeable brick and preparation method thereof | |
| CN112321258A (en) | Green concrete prepared from waterworks sludge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220607 |
|
| WW01 | Invention patent application withdrawn after publication |