CN115159931A - Molybdenum tailing sand stone-like colorful baking-free water permeable brick and preparation method thereof - Google Patents
Molybdenum tailing sand stone-like colorful baking-free water permeable brick and preparation method thereof Download PDFInfo
- Publication number
- CN115159931A CN115159931A CN202210944276.XA CN202210944276A CN115159931A CN 115159931 A CN115159931 A CN 115159931A CN 202210944276 A CN202210944276 A CN 202210944276A CN 115159931 A CN115159931 A CN 115159931A
- Authority
- CN
- China
- Prior art keywords
- materials
- fabric
- stone
- water
- water permeable
- 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.)
- Pending
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
- C04B28/02—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
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00362—Friction materials, e.g. used as brake linings, anti-skid 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
- C04B2111/00474—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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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
-
- 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
- C04B2111/54—Substitutes for natural stone, artistic materials or the like
- C04B2111/542—Artificial natural stone
-
- 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
- C04B2111/80—Optical properties, e.g. transparency or reflexibility
- C04B2111/82—Coloured 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
- 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
-
- 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
Abstract
The application discloses a molybdenum tailing sand stone-like multicolor baking-free water permeable brick and a preparation method thereof, relates to the technical field of building materials, and comprises a brick body, wherein the brick body comprises a water permeable base layer and a water permeable surface layer. The thickness of the permeable base layer is 50-100 mm, and the thickness of the permeable surface layer is 5-8 mm. The coarse and fine aggregates of the product completely use molybdenum ore tailing slag, so that the waste utilization rate is high; the product has the appearance of cherry red stone, can be beautiful and beautiful compared with natural stone, has lower price than stone products, not only saves natural resources, but also reduces cost. The product has good technical performance, high breaking strength, high surface layer wear resistance, water permeability reaching A level, various indexes far higher than the national standard requirements, solves the defects of poor breaking resistance, easy breakage, water impermeability and non-skid property of natural stone, and has wide application range and popularization.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a molybdenum tailing sand stone-like colorful baking-free water permeable brick and a preparation method thereof.
Background
The prior sand material for buildings causes the lack of natural resources, and limits or prohibits mining such as silica sand, river sand, quartz sand and the like in order to protect the environment and natural ecology. In this case, we gather for alternative materials in many ways. The molybdenum ore tailing slag is a copper-iron-titanium intergrowth ore, the hardness of the tailing after the molybdenum ore is refined is between 5 and 7, the main chemical component is silicon dioxide, the content of the silicon dioxide is over 70 percent, and the tailing stone is mixed with a small amount of red, yellow, white, cyan and other colored particles. Meets the basic requirements of the sand for the water permeable brick. After special treatment, the high-grade stone-like water permeable brick can be made.
Based on the above, the molybdenum tailing sand stone-like colorful baking-free water permeable brick and the preparation method thereof are provided.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides the colorful imitation stone baking-free water permeable brick made of the molybdenum tailing sand and the preparation method thereof.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
the utility model provides a colorful unfired brick that permeates water of imitative stone of molybdenum tailing sand, includes the brick body, the brick body is including permeating water basic unit and the surface course that permeates water.
Preferably, the thickness of the water permeable base layer is 50-100 mm, and the thickness of the water permeable surface layer is 5-8 mm.
A preparation method of a molybdenum tailing sand stone-like colorful baking-free water permeable brick comprises the following specific steps:
s1: the base material proportion is as follows: 1600-1800kg of molybdenum tailing slag with the grain diameter of 3-10 mm, 370-400 kg of po52.5 low-alkali cement, 1.5-3 kg of high-efficiency water reducing agent and 130-150 kg of magnetized water;
s2: fabric proportioning: 280-300kg of molybdenum tailing sand with fineness modulus of 1.6, 80-100 kg of po52.5 low-alkali cement, 1-1.5 kg of polymer gel, 24-30 kg of magnetized water and 0.6-0.8 kg of surfactant;
s3: preparing the fabric: measuring materials required by the water permeable surface layer according to the fabric proportion, feeding the materials into a fabric stirrer through a conveying device, stirring the materials for 35s in a dry mode, adding magnetized water, stirring the materials for 160s in a wet mode, stirring the materials uniformly, and feeding the materials into a storage box to form the fabric;
s4: preparing a base material: metering materials required by the permeable base layer according to the base material proportion, conveying the materials to a base material stirrer, stirring for 35s in a dry mode, adding magnetized water, stirring for 40s in a wet mode, uniformly stirring, feeding the materials into a material distribution box, distributing the materials into a forming machine die cavity through the material distribution box, leveling the materials at a low speed by using a special scraper blade, assisting vibration for 1.5s, and forming the base material at a vibration frequency of 40 Hz;
s5: and (3) manufacturing a wet product: injecting the prepared fabric into a cloth box, uniformly distributing the fabric on the base material through the cloth box, then using a special scraper to scrape the fabric at a low speed, and forming the fabric into a wet product through vibration and extrusion, wherein the vibration time is 3s, the frequency is 50Hz, and the forming pressure is 160 Mpa;
s6: demolding: and conveying the wet product into a curing kiln through a conveyor for standing for 2 hours, gradually heating to 40 ℃, maintaining at constant temperature for 14 hours, gradually and naturally cooling to reach the humidity of more than 90%, and taking the wet product off line for warehousing and natural curing after 24 hours.
In summary, the invention includes at least one of the following advantages:
1. the coarse and fine aggregate of the high-end stone-like permeable brick is completely molybdenum ore tailing slag, so that the waste utilization rate is high.
2. The appearance of the high-end stone-imitated water permeable brick has the texture of cherry red stone, can be beautiful and jade with natural stone, has lower price than stone products, not only saves natural resources, but also reduces the cost.
3. The product has good technical performance, high breaking strength, high surface layer wear resistance, water permeability reaching A level, various indexes far higher than the national standard requirements, solves the defects of poor breaking resistance, easy breakage, water impermeability and non-skid property of natural stone, and has wide application range and popularization.
Drawings
FIG. 1 is a schematic structural view of the stone-like multicolor baking-free water permeable brick made of molybdenum tailings sand of the present invention;
FIG. 2 is a process flow diagram of the permeable facing of the present invention;
FIG. 3 is a process flow diagram of the permeable base layer of the present invention;
in the drawings, the reference numbers indicate the following list of parts:
1-brick body, 101-permeable base layer and 102-permeable surface layer.
Detailed Description
The present invention will be described in further detail with reference to FIGS. 1 to 3.
The embodiment provided by the invention comprises the following steps: as shown in figure 1, the molybdenum tailing sand stone-like multicolor baking-free water permeable brick can be used for paving water permeable pavements, building beautiful villages in sponge cities and collecting rainwater. The brick comprises a brick body 1, wherein the brick body 1 comprises a permeable base layer 101 and a permeable surface layer 102, the permeable base layer 101 is 50-100 mm thick, and the permeable surface layer 102 is 5-8 mm thick.
The preparation and production process requirements of the molybdenum tailing sand stone-like multicolor baking-free water permeable brick are as follows: distributing dry and hard concrete in multiple times, and performing vibration extrusion forming; and the maintenance adopts steam automatic maintenance kiln maintenance.
As shown in fig. 2 and 3, a preparation method of the molybdenum tailing sand stone-like multicolor burn-free water permeable brick comprises the following specific process steps:
s0: molybdenum tailing sand processing: after the processing treatments of crushing, grinding, screening, washing and the like, the molybdenum tailing slag is divided into surface layer sand with the fineness modulus of 1.6-1.8 and base layer aggregate particles with the particle size of 3-8 (mm).
S1: the base material proportion is as follows: 1600-1800kg of molybdenum tailing slag with the grain diameter of 3-10 mm, 370-400 kg of po52.5 low-alkali cement, 1.5-3 kg of high-efficiency water reducing agent and 130-150 kg of magnetized water;
s2: fabric proportioning: 280-300kg of molybdenum tailing sand with fineness modulus of 1.6, 80-100 kg of po52.5 low-alkali cement, 1-1.5 kg of polymer gel, 24-30 kg of magnetized water and 0.6-0.8 kg of surfactant;
s3: preparing the fabric: metering materials required by the water permeable surface layer 102 according to the fabric proportion, feeding the materials into a fabric stirrer through a conveying device, stirring the materials for 35s in a dry mode, adding magnetized water, stirring the materials for 160s in a wet mode, stirring the materials uniformly, and feeding the materials into a storage box to form the fabric;
s4: preparing a base material: metering materials required by the permeable base layer 101 according to a base material proportion, conveying the materials to a base material stirrer, stirring the materials for 35s in a dry mode, adding magnetized water, stirring the materials for 40s in a wet mode, uniformly stirring the materials, then feeding the materials into a material distribution box, distributing the materials into a forming machine cavity through the material distribution box, leveling the materials at a low speed by using a special scraper blade, and then performing auxiliary vibration for 1.5s at a vibration frequency of 40Hz to form a base material;
s5: and (3) manufacturing a wet product: injecting the prepared fabric into a cloth box, uniformly distributing the fabric on the base material through the cloth box, then using a special scraper to scrape the fabric at a low speed, and forming the fabric into a wet product through vibration and extrusion, wherein the vibration time is 3s, the frequency is 50Hz, and the forming pressure is 160 Mpa;
s6: demolding: and conveying the wet product into a curing kiln through a conveyor for standing for 2 hours, gradually heating to 40 ℃, maintaining at constant temperature for 14 hours, gradually and naturally cooling to reach the humidity of more than 90%, and discharging the product to a warehouse (entering the curing kiln) for natural curing after 24 hours.
Specification of the test protocol: 400 x 200 x 80 (mm)
Test results
Sample specification: 400X 200X 80 mm, 28-day flexural strength of 6.8Mpa (standard value is more than or equal to 4.5 Mpa), compressive strength of 46.3Mpa (standard value is more than or equal to 40 Mpa), surface layer grinding pit length of 28mm (standard value is less than or equal to 35 mm), and water permeability of 2.4X 10 -2 cm/s (grade A), the loss rate of frost resistance strength of 2.3 percent (the standard value is less than or equal to 20 percent), and the skid resistance BPN 72 (the standard value is more than or equal to 60 percent).
To sum up:
1. the coarse and fine aggregate of the product is molybdenum ore tailing slag, and the waste utilization rate reaches 83 percent.
2. The product has the appearance of cherry red stone texture, can be beautiful and beautiful with natural stone, has the price of only 50 percent of the stone product, saves natural resources and reduces the cost.
3. The product has good technical performance, the breaking strength reaches 6.8Mpa, the surface layer has the wear resistance of 28mm, the water permeability reaches A level, and each index is far higher than the national standard requirement. Solves the defects of poor fracture resistance, easy breakage, water impermeability and non-skid property of natural stone.
4. The application range is wide and can be popularized, and the method conforms to the guiding ideas of sponge city construction and beautiful country construction.
The above are the preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (3)
1. The utility model provides a colorful baking-free brick that permeates water of imitative stone of molybdenum tailing sand, includes the brick body (1), its characterized in that: the brick body (1) comprises a water permeable base layer (101) and a water permeable surface layer (102).
2. The molybdenum tailing sand stone-like multicolor baking-free water permeable brick as claimed in claim 1, which is characterized in that: the thickness of the permeable base layer (101) is 50-100 mm, and the thickness of the permeable surface layer (102) is 5-8 mm.
3. A preparation method of a molybdenum tailing sand stone-like colorful baking-free water permeable brick is characterized by comprising the following steps: the preparation method of the stone-like colorful baking-free water permeable brick with molybdenum tailing sand comprises the following specific steps:
s1: the base material proportion is as follows: 1600-1800 kg of molybdenum tailing slag with the grain diameter of 3-10 mm, 370-400 kg of po52.5 low-alkali cement, 1.5-3 kg of high-efficiency water reducing agent and 130-150 kg of magnetized water;
s2: fabric proportioning: 280-300kg of molybdenum tailing sand with fineness modulus of 1.6, 80-100 kg of po52.5 low-alkali cement, 1-1.5 kg of polymer gel, 24-30 kg of magnetized water and 0.6-0.8 kg of surfactant;
s3: preparing the fabric: metering materials required by the water permeable surface layer (102) according to the fabric proportion, feeding the materials into a fabric stirrer through a conveying device, stirring the materials for 35s in a dry mode, adding magnetized water, stirring the materials for 160s in a wet mode, stirring the materials uniformly, and feeding the materials into a storage box to form the fabric;
s4: preparing a base material: metering materials required by the permeable base layer (101) according to a base material proportion, conveying the materials to a base material stirrer, stirring for 35s in a dry mode, adding magnetized water, stirring for 40s in a wet mode, uniformly stirring, then feeding the materials into a material distribution box, distributing the materials into a forming machine die cavity through the material distribution box, scraping the materials at a low speed by using a special scraper, assisting vibration for 1.5s, and forming the base material at a vibration frequency of 40 Hz;
s5: and (3) manufacturing a wet product: injecting the prepared fabric into a cloth box, uniformly distributing the fabric on the base material through the cloth box, then using a special scraper to scrape the fabric at a low speed, and forming the fabric into a wet product through vibration and extrusion, wherein the vibration time is 3s, the frequency is 50Hz, and the forming pressure is 160 Mpa;
s6: demolding: and (3) conveying the wet product into a curing kiln through a conveyor for standing for 2 hours, gradually heating to 40 ℃, maintaining at constant temperature for 14 hours, gradually and naturally cooling to reach the humidity of more than 90 percent, and taking the wet product out of the line for natural curing after 24 hours.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210944276.XA CN115159931A (en) | 2022-08-05 | 2022-08-05 | Molybdenum tailing sand stone-like colorful baking-free water permeable brick and preparation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210944276.XA CN115159931A (en) | 2022-08-05 | 2022-08-05 | Molybdenum tailing sand stone-like colorful baking-free water permeable brick and preparation method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
CN115159931A true CN115159931A (en) | 2022-10-11 |
Family
ID=83478674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202210944276.XA Pending CN115159931A (en) | 2022-08-05 | 2022-08-05 | Molybdenum tailing sand stone-like colorful baking-free water permeable brick and preparation method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN115159931A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105801050A (en) * | 2016-03-01 | 2016-07-27 | 中国十七冶集团有限公司 | Dual-layered iron tailing sand-based water permeable brick and preparation method thereof |
US20170113973A1 (en) * | 2015-10-26 | 2017-04-27 | Rjsk, Llc | Mineral-based porous sand and methods for making mineral-based porous sand |
CN114195461A (en) * | 2021-12-31 | 2022-03-18 | 西安墙体材料研究设计院有限公司 | Molybdenum tailing active powder concrete archaized brick and preparation method thereof |
-
2022
- 2022-08-05 CN CN202210944276.XA patent/CN115159931A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170113973A1 (en) * | 2015-10-26 | 2017-04-27 | Rjsk, Llc | Mineral-based porous sand and methods for making mineral-based porous sand |
CN105801050A (en) * | 2016-03-01 | 2016-07-27 | 中国十七冶集团有限公司 | Dual-layered iron tailing sand-based water permeable brick and preparation method thereof |
CN114195461A (en) * | 2021-12-31 | 2022-03-18 | 西安墙体材料研究设计院有限公司 | Molybdenum tailing active powder concrete archaized brick and preparation method thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104086131B (en) | Road pavements that building waste is prepared with agstone compound and preparation method thereof | |
CN108117335A (en) | A kind of graphene oxide concrete of fly ash and preparation method thereof | |
CN108249851A (en) | A kind of environment-friendly type clear-water concrete and preparation method thereof | |
CN102850038A (en) | Ceramic water-permeable brick | |
CN107572981A (en) | A kind of concrete repair self-compacting concrete and preparation method thereof | |
CN105016670A (en) | Concrete annular pole and preparation method thereof | |
CN110498647A (en) | A kind of fiber reinforcement type recycled fine aggregate cement-base composite material | |
CN110845194A (en) | Pervious concrete prepared from brick slag recycled aggregate and preparation method thereof | |
CN109809774A (en) | A kind of assorted fibre slag is for sand concrete and preparation method thereof | |
CN108483961A (en) | A kind of recycled concrete coarse aggregate mortar stripping off device | |
CN108751851A (en) | A kind of glass fine aggregate non-light tight concrete and preparation method thereof | |
CN108358547A (en) | A kind of silane coupler modified diabase pervious concrete | |
CN109928693A (en) | A kind of cracking resistance regeneration concrete resistant to high temperature | |
CN104529334B (en) | Discarded fired brick regeneration C35 synthetic fiber concretes and preparation method thereof | |
CN109206083A (en) | A kind of high abrasion permeable road kerb and preparation method thereof | |
CN103922686A (en) | Phosphogypsum-plastic waste-slag wall material and preparation method thereof | |
CN106045558A (en) | Aerated concrete block preparation method | |
CN107793066A (en) | A kind of preparation method of superpower compound stone diamond stone and manufactured superpower compound stone diamond stone | |
CN110627473A (en) | Phosphorus-silicon-magnesium-based special rapid-hardening material and preparation method thereof | |
CN104671720B (en) | Use road filling of building waste and gangue manufacture and preparation method thereof | |
CN113493333A (en) | Slurry-wrapped reinforced permeable recycled concrete and preparation method thereof | |
CN105884297A (en) | Novel concrete and preparation method thereof | |
CN113372086A (en) | Method for preparing light-transmitting concrete material by using active excited copper tailings | |
KR101398816B1 (en) | Artificial stone made from waste stone or lightweight aggregate of basalt | |
CN112062518A (en) | Preparation method of sea pebble sea sand seawater regeneration micro-powder concrete |
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 |