CN106518149B - A kind of method of oil shale semi-coke and iron tailing sintered water-permeable brick - Google Patents
A kind of method of oil shale semi-coke and iron tailing sintered water-permeable brick Download PDFInfo
- Publication number
- CN106518149B CN106518149B CN201611049012.9A CN201611049012A CN106518149B CN 106518149 B CN106518149 B CN 106518149B CN 201611049012 A CN201611049012 A CN 201611049012A CN 106518149 B CN106518149 B CN 106518149B
- Authority
- CN
- China
- Prior art keywords
- coke
- water
- oil shale
- shale semi
- iron tailings
- 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.)
- Active
Links
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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/063—Preparing or treating the raw materials individually or as batches
- C04B38/0635—Compounding ingredients
- C04B38/0645—Burnable, meltable, sublimable materials
- C04B38/068—Carbonaceous materials, e.g. coal, carbon, graphite, hydrocarbons
-
- 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
- C04B33/1305—Organic 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
- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
-
- 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
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/138—Waste materials; Refuse; Residues from metallurgical processes, e.g. slag, furnace dust, galvanic waste
-
- 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
- C04B33/32—Burning methods
- C04B33/34—Burning methods combined with glazing
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention relates to a kind of method for preparing water-permeable brick using oil shale semi-coke and iron tailings, the water-permeable brick is made of oil shale semi-coke 30-40wt%, iron tailings 30-50wt%, sodium carboxymethylcellulose 2-5wt%, industrial sodium carbonate 2-4wt%, water 15-20wt%.Oil shale semi-coke is mainly made of inorganic oxide and remnant organic matter, and mineral is made of feldspar and quartz, and the content of organic matter is greater than the 5% of gross mass；Iron tailings granularity is made of -40 mesh of 10 mesh.First by oil shale semi-coke is levigate and iron tailings sieves, additional a small amount of industrial sodium carbonate pore creating material and sodium carboxymethylcellulose binding agent when preparation, green compact are made through semidry method pressure forming, then carry out heating firing by certain heating process.The present invention mutually reduces water-permeable brick firing temperature, save the cost using the feldspar object in industrial solid castoff oil shale semi-coke；Using remnant organic matter present in oil shale semi-coke as part pore creating material, the water permeability of water-permeable brick is improved；Invention product can be widely applied to the places such as pavement, square.
Description
Technical field
Big coefficient of permeability water-permeable brick manufacture material combination method is obtained the present invention relates to a kind of, belongs to construction material and gives up
Abandon resource reutilization technical field.
Background technique
Currently, having nearly 80% urban ground by waterproof, air-locked concrete structure and concrete road surface or drip
Green road surface is covered, and rainwater, snow-broth cannot effectively permeate the ground, and underground water is caused to reduce, and land subsidence, soil moisture content is low,
The growth of flowers, plants and trees is suppressed etc., destroys ecological environment.Water-permeable brick is that the road surface inside brick containing a large amount of intercommunicating pore is spread
Package material, existing continuous hole in permeable brick structure, can exclude surface gathered water in the rainy day, convenient for the security row of automobile in time
The walking sailed with resident is convenient.In addition it can which rainwater is bled back to underground by the hole of its connection, what supplement increasingly lacked
Groundwater resources improve the living environment of plant, restore the water circulation system of earth's surface.The preparation method of water-permeable brick usually has at present
Two kinds, high-temperature sintering process and room temperature compression moulding method.Cementitious matter used mainly has cement-based material and resin base when formed at normal temp
Often there is the disadvantages of frost resistance, wearability, poor durability in material, cement base water-permeable brick；Resin base water-permeable brick is with macromolecule
Resin is the molding that cementing material realizes material, there is the disadvantages of being led to durability due to resin aging, worn no resistance.High temperature is burnt
The ceramic base water-permeable brick of connection preparation has many advantages, such as that hardness is high, intensity is big, durability is good, the disadvantage is that need addition largely at
Hole agent and high-temperature agglomerant, production technology is complicated, and resource consumption is big.Chinese patent CN105601254A discloses a kind of using powder
Coal ash, clay, the sintering brick permeable to water that magnesite powder is main raw material(s) preparation.In recent years due to the reduction in arable land, country about
Protective policy is taken in the use of clay, and clay brick method can consume a large amount of resource and the energy, and how to reduce sintering cost is to burn
Tie water-permeable brick problem to be solved.
Oil shale semi-coke be using oil shale extract shale oil after remaining industrial solid castoff, not before to its using compared with
It is few, land occupation, pollution environment are largely accumulated, is the solid waste urgently developed and used.Half glue primary chemical of oil shale
Ingredient is inorganic oxide and remnant organic matter, and mineral composition is mainly feldspar and quartz.Feldspar and quartz prepare ceramics
The presence of essential mineral object phase, feldspar can reduce firing temperature, advantageously reduce energy consumption when firing.Organic matter had been burnt into
On the one hand partial heat energy can be provided by burning in journey, reduce production energy consumption, the burning of another aspect organic matter removes can be with
Make to form partially communicating through-hole in product, improves the water permeability of water-permeable brick.Therefore, saturating using oil shale semi-coke preparation sintering
Water brick can both reduce energy consumption, play a role for the water permeability of water-permeable brick, or realize the efficient benefit of oil shale semi-coke
With exploitation new way.
Iron tailings is one of biggish solid waste of domestic discharge amount.A large amount of iron tailings stacking brings security risk
And the wasting of resources.But up to the present, large consumption iron tailings is still a great problem of society.The primary chemical group of iron tailings
Dividing is SiO2、Al2O3And Fe2O3, main object is mutually quartz, bloodstone etc., and grain graininess is 4-100 mesh, can be used as sintering
The aggregate of material utilizes, and realization is turned waste into wealth.
Sintering brick permeable to water of the present invention is additional using iron tailings as aggregate using oil shale semi-coke as high-temperature agglomerant and pore former
Water-permeable brick is made by compression moulding, high temperature firing in a small amount of pore creating material and adhesive, and the present invention combines two kinds of solid waste spies
Point carries out efficient combination, has widened the application new way of iron tailings Yu two kinds of solid waste of oil shale semi-coke.Present invention preparation
There is sintering brick permeable to water good water permeability, the features such as compression strength is high, and ageing-resistant performance is good, low energy consumption, not only can be to solve
Oil shale semi-coke and tailing bring environmental problem and problem of resource waste, and can be provided for market have excellent performance it is permeable
Brick has very big Social benefit and economic benefit.
Summary of the invention
The present invention discloses a kind of method for preparing sintering brick permeable to water using oil shale semi-coke and iron tailings, sintering brick permeable to water by
The raw material of following mass percent forms:
Oil shale semi-coke 30-40wt%, iron tailings 30-50wt%, sodium carboxymethylcellulose 2-5wt%, industrial sodium carbonate
2-4wt%, water 15-20wt%.
The oil shale semi-coke is oil shale raw ore remaining solid waste after destructive distillation, mainly by inorganic oxide
It is formed with remnant organic matter.Tailing is that iron ore extracts remaining solid waste after valuable element.
Steps are as follows for above-mentioned sintering brick permeable to water preparation method and technology:
(1) screening of the grinding and iron tailings of oil shale semi-coke: by oil shale semi-coke using ball mill grinding to passing through 200
Mesh square hole screen is spare；By iron tailings by 10 mesh square hole screens and 40 mesh square hole screens, take the iron tailings of 10-40 mesh fineness spare；
(2) a certain amount of oil shale semi-coke, iron tailings, industrial sodium carbonate, carboxymethyl the preparation of permeable adobe: are weighed by quality
Cellulose, which is received, to be mixed evenly, then is weighed a certain amount of water and poured into solid mixture and stir evenly, and is adopted on press machine
It is pressed with the pressure of 20MPa, is spontaneously dried after compression moulding；
(3) firing of water-permeable brick: the permeable adobe after drying is burnt under 1000-1100 DEG C of high temperature, is burnt into work
Skill be room temperature to 600 DEG C be 200 DEG C/h, 600-800 DEG C is 100 DEG C/h, and 800- target temperature is 300 DEG C/h, in target temperature
Lower heat preservation 1-3h, natural cooling can be prepared by product of the present invention after heat preservation.
The beneficial effects of the present invention are: the main raw material(s) as water-permeable brick is combined with iron tailings using oil shale semi-coke,
Spectra present in oil shale semi-coke and remnant organic matter component can be made full use of, firing temperature is reduced in sintering process
Degree provides energy, reduces energy consumption, and realize the formation of intercommunicating pore in the product, guarantees water permeability, reduce production cost.
With the development of urban construction, water-permeable brick using more and more extensive, utilize oil shale semi-coke and iron tailings preparation
Water-permeable brick opens frontier to large consumption of two kinds of solid waste, significantly improves the resource of both solid waste
Change utilization rate.
Specific embodiment
Embodiment 1
(1) it the screening of the grinding and iron tailings of oil shale semi-coke: weighs 100Kg oil shale semi-coke and uses ball mill grinding extremely
It is spare by 200 mesh square hole screens；Iron tailings is weighed by 10 mesh square hole screens and 40 mesh square hole screens, takes the iron tail of 10-40 mesh fineness
Mine is spare.
(2) preparation of permeable adobe: ingredient is carried out by gross mass 10Kg, weighs oil shale semi-coke 30wt% (3Kg), iron tail
Mine 50wt% (5Kg), sodium carboxymethylcellulose 2wt% (0.2Kg), industrial sodium carbonate 3wt% (0.3Kg) be mixed
It is even, then weigh 15wt% (1.5Kg) water and pour into solid mixture and stir evenly, on press machine using the pressure of 20MPa into
Row compression moulding spontaneously dries after compression moulding.
(3) firing of water-permeable brick: by the permeable adobe after drying by room temperature to 600 DEG C when 200 DEG C/h, at 600-800 DEG C
300 DEG C/h at 100 DEG C/h, 800-1000 DEG C, the calcining system that 2h is kept the temperature at 1000 DEG C are burnt into, natural after heat preservation
Cooling can be prepared by product of the present invention.
(4) product of the present invention is tested for the property, through detecting, water-permeable brick compression strength 24.6MPa, flexural strength
5.4MPa, tensile splitting strength 4.9MPa, coefficient of permeability 3.6 × 10-2Cm/s, frost resistance mass loss rate 0.8%, loss of strength
Rate 2.0%.Comply fully with GB/T25993-2010 " permeable pavement brick and porous pavement plate " standard requirements.
Embodiment 2
(1) it the screening of the grinding and iron tailings of oil shale semi-coke: weighs 100Kg oil shale semi-coke and uses ball mill grinding extremely
It is spare by 200 meshes；Iron tailings is weighed by 10 meshes and 40 meshes, takes the iron tailings of 10-40 mesh fineness spare.
(2) preparation of permeable adobe: ingredient is carried out by gross mass 10Kg, weighs oil shale semi-coke 35wt% (3.5Kg), iron
Tailing 40wt% (4.5Kg), sodium carboxymethylcellulose 4wt% (0.4Kg), industrial sodium carbonate 3wt% (0.3Kg) carry out mixing and stir
It mixes uniformly, then weighs 18wt% (1.8Kg) water and pour into solid mixture and stir evenly, the pressure of 20MPa is used on press machine
Power is pressed, and spontaneously dries after compression moulding.
(3) firing of water-permeable brick: by the permeable adobe after drying by room temperature to 600 DEG C when 200 DEG C/h, at 600-800 DEG C
300 DEG C/h at 100 DEG C/h, 800-1050 DEG C, the calcining system that 4h is kept the temperature at 1050 DEG C are burnt into, natural after heat preservation
Cooling can be prepared by product of the present invention.
(4) product of the present invention is tested for the property, through detecting, water-permeable brick compression strength 29.6MPa, flexural strength
6.8MPa, tensile splitting strength 5.4MPa, coefficient of permeability 2.8 × 10-2Cm/s, frost resistance mass loss rate 0.4%, loss of strength
Rate 1.4%.Comply fully with GB/T25993-2010 " permeable pavement brick and porous pavement plate " standard requirements.
Embodiment 3
(1) it the screening of the grinding and iron tailings of oil shale semi-coke: weighs 100Kg oil shale semi-coke and uses ball mill grinding extremely
It is spare by 200 mesh square hole screens；Iron tailings is weighed by 10 mesh square hole screens and 40 mesh square hole screens, takes the iron tail of 10-40 mesh fineness
Mine is spare.
(2) preparation of permeable adobe: ingredient is carried out by gross mass 10Kg, weighs oil shale semi-coke 40wt% (4Kg), iron tail
Mine 30wt% (3Kg), sodium carboxymethylcellulose 5wt% (0.5Kg), industrial sodium carbonate 4wt% (0.4Kg) be mixed
It is even, then weigh 21wt% (2.1Kg) water and pour into solid mixture and stir evenly, on press machine using the pressure of 20MPa into
Row compression moulding spontaneously dries after compression moulding.
(3) firing of water-permeable brick: by the permeable adobe after drying by room temperature to 600 DEG C when 200 DEG C/h, at 600-800 DEG C
300 DEG C/h at 100 DEG C/h, 800-1100 DEG C, the calcining system that 4h is kept the temperature at 1100 DEG C are burnt into, natural after heat preservation
Cooling can be prepared by product of the present invention.
(4) product of the present invention is tested for the property, through detecting, water-permeable brick compression strength 32.6MPa, flexural strength
7.8MPa, tensile splitting strength 5.9MPa, coefficient of permeability 2.2 × 10-2Cm/s, frost resistance mass loss rate 0.2%, loss of strength
Rate 0.4%.Comply fully with GB/T25993-2010 " permeable pavement brick and porous pavement plate " standard requirements.
Claims (4)
1. a kind of method of oil shale semi-coke and the sintering brick permeable to water of iron tailings preparation, it is characterised in that: water-permeable brick is by following matter
The raw material composition of amount percentage is sintered, 30~40wt% of oil shale semi-coke, 30~50wt% of iron tailings, industrial sodium carbonate 2
~4wt%, 2~5wt% of sodium carboxymethylcellulose, 15~20wt% of water are made through mixing, compacting, firing process；The iron tail
The granularity of mine is 10~40 mesh.
2. the method for oil shale semi-coke and the sintering brick permeable to water of iron tailings preparation according to claim 1, it is characterised in that: institute
It states oil shale semi-coke to be made of inorganic oxide and remnant organic matter, the inorganic oxide is mainly by SiO2、Al2O3、Na2O、
K2O and Fe2O3It forms, wherein SiO2With Al2O3Quality sum is greater than 70%, Na2O and K2O quality sum is greater than 3%；Host inorganic
Mineral facies are made of feldspar and quartz, and the remnant organic matter content is greater than the 5% of gross mass.
3. the method for oil shale semi-coke and the sintering brick permeable to water of iron tailings preparation according to claim 1, it is characterised in that: institute
Iron tailings essential mineral group is stated as silicate, aluminosilicate, carbonate mineral and microelement, chemical component is with SiO2、
Al2O3Based on, wherein SiO2Content is 25%~70%, Al2O3Content is 10%~25%.
4. the method for oil shale semi-coke and the sintering brick permeable to water of iron tailings preparation according to claim 1, it is characterised in that: thoroughly
Water green brick forming pressure is 20MPa, and firing carries out under 1000~1100 DEG C of high temperature, firing process be room temperature to 600 DEG C be 200
DEG C/h, 600~800 DEG C are 100 DEG C/h, and 800~target temperature is 300 DEG C/h, and 1~3h is kept the temperature under target temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611049012.9A CN106518149B (en) | 2016-11-24 | 2016-11-24 | A kind of method of oil shale semi-coke and iron tailing sintered water-permeable brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611049012.9A CN106518149B (en) | 2016-11-24 | 2016-11-24 | A kind of method of oil shale semi-coke and iron tailing sintered water-permeable brick |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106518149A CN106518149A (en) | 2017-03-22 |
| CN106518149B true CN106518149B (en) | 2019-04-23 |
Family
ID=58356907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611049012.9A Active CN106518149B (en) | 2016-11-24 | 2016-11-24 | A kind of method of oil shale semi-coke and iron tailing sintered water-permeable brick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106518149B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107879723A (en) * | 2017-09-30 | 2018-04-06 | 望江县中山新型建材有限公司 | A kind of preparation method of the good fired brick of light thermal-insulation mechanical property |
| CN113087492A (en) * | 2021-03-31 | 2021-07-09 | 中冶华天工程技术有限公司 | Sintered water permeable brick prepared from iron tailings and preparation method thereof |
| CN113929378A (en) * | 2021-04-30 | 2022-01-14 | 甘肃路桥建设集团有限公司 | Oil shale semicoke and application of modified material thereof |
| CN114230223B (en) * | 2021-12-17 | 2022-08-26 | 东北大学 | Multi-solid-waste admixture, preparation method thereof and cement mortar |
| CN114671662B (en) * | 2022-04-14 | 2023-03-28 | 甘肃路桥建设集团有限公司 | Oil shale semicoke-based soil body reinforcing material, preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765961A (en) * | 2012-06-30 | 2012-11-07 | 安徽中龙建材科技有限公司 | Method capable of utilizing shales to produce aerated hollow brick |
| CN102924058A (en) * | 2012-11-22 | 2013-02-13 | 盱眙县东强新型建材厂 | Perforated brick prepared by sintering attapulgite and shale |
| CN103204698A (en) * | 2013-04-16 | 2013-07-17 | 北京科技大学 | Method for preparing environment-friendly water permeable bricks by using iron tailings |
-
2016
- 2016-11-24 CN CN201611049012.9A patent/CN106518149B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765961A (en) * | 2012-06-30 | 2012-11-07 | 安徽中龙建材科技有限公司 | Method capable of utilizing shales to produce aerated hollow brick |
| CN102924058A (en) * | 2012-11-22 | 2013-02-13 | 盱眙县东强新型建材厂 | Perforated brick prepared by sintering attapulgite and shale |
| CN103204698A (en) * | 2013-04-16 | 2013-07-17 | 北京科技大学 | Method for preparing environment-friendly water permeable bricks by using iron tailings |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106518149A (en) | 2017-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106518149B (en) | A kind of method of oil shale semi-coke and iron tailing sintered water-permeable brick | |
| CN101289310B (en) | Low-temperature ceramic permeable bricks and production method thereof | |
| CN106187004B (en) | A kind of ecological permeable concrete and preparation method thereof | |
| CN101585714B (en) | Preparing method of ceram site fully using biosolid and sludge | |
| CN103626471B (en) | A kind of steamed brick utilizing phosphorus mine tailing and phosphorus slag to produce and preparation method thereof | |
| CN107098683B (en) | Sintered coal gangue heat-insulating brick and preparation method thereof | |
| CN103951333A (en) | Porous concrete prepared from waste road concrete aggregate and preparation process | |
| CN101423376A (en) | Ceramic permeable bricks and method for producing the same | |
| CN101994283A (en) | Steamed ecological water permeable environmentally friendly brick produced by waste ceramic residues and manufacturing method thereof | |
| CN107857568A (en) | A kind of high-strength bricks for road surface and preparation method thereof | |
| CN105218003A (en) | A kind of outdoor ceramic permeable brick and preparation method thereof | |
| CN105669157A (en) | Preparation method of copper mine tailing haydite for landscaping | |
| CN108821748A (en) | The method for being sintered straight-through water delivery type water-permeable brick using lithium tailing and the production of steel slag tailing | |
| CN100418917C (en) | Handling method for using aluminum sulfate slag as cement ingredient | |
| CN107434430A (en) | Water-permeable brick and its preparation technology | |
| CN108314408A (en) | Environment-friendly compression-resistant light water permeable brick and preparation method thereof | |
| CN101209909B (en) | Cement-free calcination-free shale pressing bearing brick and preparation thereof | |
| CN102417332A (en) | Method for manufacturing autoclaved permeable bricks with lake sludge | |
| CN109776067A (en) | A method of sintering seepy material is prepared using clay | |
| CN107619297A (en) | A kind of mine tailing ceramsite concrete light-weight water-permeable brick and preparation method thereof | |
| CN105601254A (en) | Sintered water permeable brick and preparation method thereof | |
| CN105837163B (en) | A kind of preparation method of chambersite tailing Ceramic Tiles | |
| CN111393148B (en) | Energy-saving wear-resistant water permeable brick and preparation method thereof | |
| CN104817296A (en) | Ceramsite recycled concrete self-insulation material and preparation method thereof | |
| CN103755379B (en) | Method of preparing foamed air brick by taking iron tailings as main material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |