CN108640623B - Method for utilizing used magnesia-calcium brick - Google Patents
Method for utilizing used magnesia-calcium brick Download PDFInfo
- Publication number
- CN108640623B CN108640623B CN201810610104.2A CN201810610104A CN108640623B CN 108640623 B CN108640623 B CN 108640623B CN 201810610104 A CN201810610104 A CN 201810610104A CN 108640623 B CN108640623 B CN 108640623B
- Authority
- CN
- China
- Prior art keywords
- fly ash
- quicklime
- magnesia
- powder
- mass
- 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
- 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
- C04B28/10—Lime cements or magnesium oxide 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/16—Waste materials; Refuse from building or ceramic industry
-
- 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)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Paper (AREA)
Abstract
A utilization method of a used magnesia-calcium brick is characterized in that the method is used for preparing a fly ash aerated concrete plate; the fly ash aerated concrete plate comprises the following ingredients: the weight of the quicklime powder is 18 to 25 percent of that of the quicklime, the weight of the used magnesia-calcium brick is 5 to 25 percent of that of the quicklime, and the weight of the aluminum powder liquid is 2 to 5 percent of that of the quicklime; the fly ash mortar comprises, by mass, 60-64 parts of fly ash and 36-40 parts of water. The invention solves the cracking problem caused by heating of the fly ash aerated concrete plate.
Description
Technical Field
The invention relates to a method for utilizing a used magnesia-calcium brick for a fly ash aerated concrete plate, belonging to the field of comprehensive utilization of resources.
Background
The used magnesia-calcium brick is seriously eroded, a residual brick is taken down from the AOD slag line part, and the macroscopic characteristics of the residual brick are observed: the brick has no obvious slag layer, the residual bricks are subjected to obvious gradient layering from the working surface to the original brick surface, and the color of the residual bricks is from deep to light, namely a severe deterioration layer, a mild deterioration layer, a permeable layer and an original brick layer.
And (4) carrying out layered sample preparation on the residual bricks, and measuring the chemical compositions of different thickness layers of the residual bricks. From the deteriorated layer, the permeable layer to the original brick layer, Al2O3、SiO2、Fe2O3The content is reduced in sequence; the MgO content and the CaO content in the severe deterioration layer are low, and the chemical components of the original brick layer are stable. The original brick layer can be recycled to prepare the magnesia-calcium brick, but the composition of the deteriorated layer and the permeable layer is changed due to the corrosion of molten steel and steel slag, so that the deteriorated layer and the permeable layer cannot be recycled, and a new utilization process needs to be developed.
Disclosure of Invention
The invention aims to: develops a new utilization process of the used magnesia-calcium brick.
Technical scheme of the invention
A utilization method of a used magnesia-calcium brick is characterized in that the method is used for preparing a fly ash aerated concrete plate; the fly ash aerated concrete plate comprises the following ingredients: the weight of the quicklime powder is 18 to 25 percent of that of the quicklime, the weight of the used magnesia-calcium brick is 5 to 25 percent of that of the quicklime, and the weight of the aluminum powder liquid is 2 to 5 percent of that of the quicklime; the fly ash mortar comprises, by mass, 60-64 parts of fly ash and 36-40 parts of water.
The preparation process of the fly ash aerated concrete plate comprises the working procedures of batching, stirring, pouring, inserting a drill rod, statically maintaining and generating gas, pulling out the drill rod and carrying out autoclaved curing;
the method comprises the following specific steps:
(1) firstly, weighing fly ash and water according to the mixture ratio, wherein the mass parts are as follows: 60-64 parts of fly ash and 36-40 parts of water are conveyed to a fly ash pulping machine, the fly ash pulping machine is stirred for 2 hours to obtain fly ash mortar, and the prepared fly ash mortar is pumped into a slurry storage tank by a pump and stored for later use.
(2) Ball-milling quicklime until the fineness reaches 10-20% (passing through a 180-mesh sieve with the balance of 10% -20%), and conveying the quicklime to a lime powder bin for storage for later use.
(3) After the magnesia-calcium brick is used, the magnesia-calcium brick is ball-milled until the fineness reaches 15 to 40 percent (the magnesia-calcium brick is sieved by a 180-mesh sieve, and the rest is 15 to 40 percent), and then the magnesia-calcium brick is conveyed to a magnesia-calcium brick powder bin for storage and standby application.
(4) Aluminum powder and water are mixed according to the mass ratio of 1: 6 to prepare aluminum powder liquid for standby.
(5) The fly ash mortar, the quicklime powder, the used magnesia-calcium brick powder and the aluminum powder liquid are measured according to the mixture ratio, and the feeding sequence is as follows: the fly ash mortar is conveyed to a stirring tank by a weigher, the used magnesia-calcium brick powder accounts for 5-25% of the mass of the quicklime, the used magnesia-calcium brick powder is added into the stirring tank by the weigher, the used magnesia-calcium brick powder and the fly ash mortar are mixed and stirred for 30-40 seconds, then the quicklime powder is added, the mass of the quicklime powder accounts for 18-25% of the mass of the fly ash mortar, then the mixture is mixed and stirred for 180-220 seconds, then aluminum powder liquid is added, the mass of the aluminum powder liquid accounts for 2-5% of the mass of the quicklime, and the pouring is started after the.
(6) Pouring the mixed solution into a mould vehicle for 50-70 seconds, enabling the mould vehicle to enter a drill rod inserting area after pouring, inserting a drill rod, arranging a steel bar mesh in a plate blank, placing the steel bar mesh in a concrete plate through the inserted drill rod, and enabling the diameter of a wire rod for manufacturing the steel bar mesh to be larger than 5 mm.
(7) After inserting the drill rod, moving the mould vehicle into a static stop chamber, starting static gas generation, gradually thickening and condensing, keeping the temperature of the static stop chamber at a certain temperature (dry heat static stop, keeping the temperature at 45-50 ℃) so as to be beneficial to adjusting the gas generation and slurry thickening time and improving the strength of a blank body. And forming a blank with certain strength after standing for 1.5-2 hours, pulling out the drill rod by a drill rod pulling crane, turning the die to the area of the turnover crane after pulling out the drill rod, and performing turnover demoulding by the turnover crane.
(8) And cutting the green body according to requirements after demolding, performing autoclaved curing in the autoclave after cutting, and performing control operations of vacuumizing, heating, keeping constant temperature and cooling in a thermal control chamber by adopting a scheme of centralized operation of the thermal control chamber for steam required by the autoclave. The specific autoclave curing system is as follows:
vacuumizing for 50 minutes to 0-0.07 MPa
Raising the temperature and the pressure within 2 hours at 174-190 ℃ and-0.06-1.2 MPa
6 hours constant temperature and pressure of 174-190 ℃ and 1.2MPa
2 hours of cooling and pressure reduction, 1.2 to 0MPa
0.5 hour of the time for the product to enter or exit the kettle
The whole curing period is 11 hours and 20 minutes.
(9) Rear unloading vehicle for kettle
And after the autoclave curing is finished, opening a kettle door, and unloading the kettle to obtain a finished product.
The invention solves the cracking problem caused by heating of the fly ash aerated concrete plate.
The specific implementation mode is as follows:
reference example: this example is a process without post-use calcium magnesium bricks.
(1) Firstly, weighing the fly ash and the water according to the mixture ratio, 2670kg of the fly ash and 1530kg of the water, and conveying the fly ash and the water to 7m3A fly ash pulping machine, stirring for 2 hours in the pulping machine to obtain fly ash slurry, and pumping the prepared fly ash slurry into a 100m3And storing the fly ash slurry in a storage tank for later use.
(2) 800kg of quicklime is ball-milled until the fineness reaches 12 percent (the fineness reaches 12 percent after passing through a 180-mesh sieve, and the balance is 12 percent), and then the quicklime is conveyed to a quicklime powder bin for storage and standby application.
(3) 100kg of aluminum powder and 600kg of water are stirred to prepare aluminum powder liquid for standby.
(4) The fly ash mortar, the quicklime powder and the aluminum powder liquid are measured according to the mixture ratio, and the feeding sequence is as follows: 3300kg of fly ash mortar is conveyed to a stirring tank by a weigher, added into the stirring tank by the weigher, then added with 750kg of quicklime powder, mixed and stirred for 200 seconds, added with 18kg of aluminum powder liquid, mixed and stirred for 50 seconds, and then pouring is started.
(5) Pouring the mixed solution into a mold vehicle for 50 seconds, entering the mold vehicle into a drill rod inserting area after pouring, inserting drill rods, wherein the specification of the plate is 3 meters (length) x 600 millimeters (width) x 150 millimeters (thickness), placing the corresponding reinforcing mesh sheet into a plate blank according to the specification requirement of the plate, and manufacturing the wire rod diameter of the reinforcing mesh sheet by 10 mm.
(6) And moving the mould vehicle to a static stop chamber after inserting the drill rod, starting static curing gas generation, gradually thickening and condensing, keeping the temperature of the static cure chamber at 47 ℃, forming a blank with certain strength after static curing for 1.5 hours, pulling out the drill rod by a drill rod pulling crane, turning the mould vehicle to the area of the turning crane after pulling out the drill rod, and turning and demoulding by the turning crane.
(7) And cutting the green body according to requirements after demolding, performing autoclaved curing in the autoclave after cutting, and performing control operations of vacuumizing, heating, keeping constant temperature and cooling in a thermal control chamber by adopting a scheme of centralized operation of the thermal control chamber for steam required by the autoclave. The specific autoclave curing system is as follows:
vacuumizing for 50 minutes to 0.05MPa
2 hours of heating and boosting the pressure to 180 ℃ and 1.2MPa
Constant temperature and pressure of 180 ℃ for 6 hours and 1.2MPa
2 hours of cooling, reducing pressure, normal temperature and normal pressure
0.5 hour of the time for the product to enter or exit the kettle
The whole curing period is 11 hours and 20 minutes.
(9) Rear unloading vehicle for kettle
And after the autoclave curing is finished, opening a kettle door, unloading the kettle to obtain a finished product, wherein the length of the finished product is 3m, the width of the finished product is 600 mm, and the thickness of the finished product is 150 mm.
The following examples are given to illustrate specific embodiments of the present invention, but the present invention is not limited to the following examples.
Example 1:
(1) firstly weighing 4340kg of fly ash and 2660kg of water according to the proportion, and conveying the fly ash and the water to 7m3Stirring the fly ash slurry in a pulping machine for 2 hours to obtain fly ash slurry, and pumping the prepared fly ash slurryInto 100m3And storing the fly ash slurry in a storage tank for later use.
(2) 800kg of quicklime is ball-milled until the fineness reaches 12 percent (the fineness reaches 12 percent after passing through a 180-mesh sieve, and the balance is 12 percent), and then the quicklime is conveyed to a quicklime powder bin for storage and standby application.
(3) 400kg of used magnesia-calcium bricks are ball-milled until the fineness reaches 20 percent (the magnesia-calcium bricks pass through a 180-mesh sieve, and the balance of the magnesia-calcium bricks is 20 percent), and then the magnesia-calcium bricks are conveyed to a magnesia-calcium brick powder bin for storage for later use.
(4) 100kg of aluminum powder and 600kg of water are stirred to prepare aluminum powder liquid for standby.
(5) The fly ash mortar, the quicklime powder, the used magnesia-calcium brick powder and the aluminum powder liquid are measured according to the mixture ratio, and the feeding sequence is as follows: 3300kg of fly ash slurry is transported to a stirring tank by a weigher, 140kg of used magnesia-calcium brick powder is added into the stirring tank by the weigher, mixed with the fly ash slurry for 40 seconds, then 650kg of quicklime powder is added, mixed for 200 seconds, then 18.5kg of aluminum powder liquid is added, mixed for 50 seconds, and then pouring is started.
(6) Pouring the mixed solution into a mold vehicle for 50 seconds, entering the mold vehicle into a drill rod inserting area after pouring, inserting drill rods, wherein the specification of the plate is 3 meters (length) x 600 millimeters (width) x 150 millimeters (thickness), placing the corresponding reinforcing mesh sheet into a plate blank according to the specification requirement of the plate, and manufacturing the wire rod diameter of the reinforcing mesh sheet by 10 mm.
(7) And moving the mould vehicle to a static stop chamber after inserting the drill rod, starting static curing gas generation, gradually thickening and condensing, keeping the temperature of the static cure chamber at 47 ℃, forming a blank with certain strength after static curing for 1.5 hours, pulling out the drill rod by a drill rod pulling crane, turning the mould vehicle to the area of the turning crane after pulling out the drill rod, and turning and demoulding by the turning crane.
(8) And cutting the green body according to requirements after demolding, performing autoclaved curing in the autoclave after cutting, and performing control operations of vacuumizing, heating, keeping constant temperature and cooling in a thermal control chamber by adopting a scheme of centralized operation of the thermal control chamber for steam required by the autoclave. The specific autoclave curing system is as follows:
vacuumizing for 50 minutes to 0.05MPa
Raising the temperature and the pressure for 2 hours to 182 ℃ and 1.2MPa
Constant temperature and pressure of 182 ℃ for 6 hours and 1.2MPa
2 hours of cooling, reducing pressure, normal temperature and normal pressure
0.5 hour of the time for the product to enter or exit the kettle
The whole curing period is 11 hours and 20 minutes.
(9) Rear unloading vehicle for kettle
And after the autoclave curing is finished, opening a kettle door, unloading the kettle to obtain a finished product, wherein the length of the finished product is 3m, the width of the finished product is 600 mm, and the thickness of the finished product is 150 mm.
Example 2:
(1) firstly weighing 2992kg of fly ash and 1838kg of water according to the mixture ratio, and conveying the fly ash and the water to 7m3A fly ash pulping machine, stirring for 2 hours in the pulping machine to obtain fly ash slurry, and pumping the prepared fly ash slurry into a 50m3And storing the fly ash slurry in a storage tank for later use.
(2) 700kg of quicklime is ball-milled until the fineness reaches 12 percent (the fineness reaches 12 percent after passing through a 180-mesh sieve, and the balance is 12 percent), and then the quicklime is conveyed to a quicklime powder bin for storage and standby application.
(3) After the magnesia-calcium brick is used, 300kg of the magnesia-calcium brick is ball-milled until the fineness reaches 20 percent (the magnesia-calcium brick passes through a 180-mesh sieve, and the balance of the magnesia-calcium brick is 20 percent), and then the magnesia-calcium brick is conveyed to a magnesia-calcium brick powder bin for storage and standby application.
(4) 100kg of aluminum powder and 600kg of water are stirred to prepare aluminum powder liquid for standby.
(5) The fly ash mortar, the quicklime powder, the used magnesia-calcium brick powder and the aluminum powder liquid are measured according to the mixture ratio, and the feeding sequence is as follows: 3000kg of fly ash mortar is conveyed to a stirring tank by a weigher, 102kg of used magnesia-calcium brick powder is added into the stirring tank by the weigher, mixed and stirred with the fly ash mortar for 40 seconds, 680kg of quicklime powder is added, then mixed and stirred for 200 seconds, 18kg of aluminum powder liquid is added, mixed and stirred for 50 seconds, and then pouring is started.
(6) Pouring the mixed solution into a mold vehicle for 48 seconds, entering the mold vehicle into a drill rod inserting area after pouring, inserting drill rods, placing the corresponding reinforcing mesh sheets into the plate blank according to the plate specification requirements, and manufacturing the wire rod diameter of the reinforcing mesh sheets to be 10mm, wherein the plate specification is 2.5 meters (length) x 500 millimeters (width) x 150 millimeters (thickness).
(7) And moving the mould vehicle to a static stop chamber after inserting the drill rod, starting static curing gas generation, gradually thickening and condensing, keeping the temperature of the static curing chamber at 48 ℃, forming a blank with certain strength after static curing for 1.5 hours, pulling out the drill rod by a drill rod pulling crane, turning the mould vehicle to the area of the turning crane after pulling out the drill rod, and turning and demoulding by the turning crane.
(8) And cutting the green body according to requirements after demolding, performing autoclaved curing in the autoclave after cutting, and performing control operations of vacuumizing, heating, keeping constant temperature and cooling in a thermal control chamber by adopting a scheme of centralized operation of the thermal control chamber for steam required by the autoclave. The specific autoclave curing system is as follows:
vacuumizing for 50 minutes to 0.03MPa
2 hours of temperature rise and pressure rise are 189 ℃ and 1.2MPa
Constant temperature and pressure of 189 ℃ for 6 hours and 1.2MPa
2 hours of cooling, reducing pressure, normal temperature and normal pressure
0.5 hour of the time for the product to enter or exit the kettle
The whole curing period is 11 hours and 20 minutes.
(9) Rear unloading vehicle for kettle
And after the autoclave curing is finished, opening a kettle door, and unloading the finished product, namely the fly ash aerated concrete plate with the length of 2.5 meters and the width of 500 millimeters and the thickness of 150 millimeters.
Claims (1)
1. A utilization method of a used magnesia-calcium brick is used for preparing a fly ash aerated concrete plate; the fly ash aerated concrete plate comprises the following ingredients: the weight of the quicklime powder is 18 to 25 percent of that of the quicklime, the weight of the used magnesia-calcium brick is 5 to 25 percent of that of the quicklime, and the weight of the aluminum powder liquid is 2 to 5 percent of that of the quicklime; the fly ash mortar comprises 60-64 parts by mass of fly ash and 36-40 parts by mass of water; the preparation method is characterized in that the fly ash aerated concrete plate is prepared by the following steps:
(1) firstly, weighing fly ash and water according to the mixture ratio, wherein the mass parts are as follows: 60-64 parts of fly ash and 36-40 parts of water are conveyed to a fly ash pulping machine, the fly ash pulping machine is stirred for 2 hours to obtain fly ash mortar, and the prepared fly ash mortar is pumped into a slurry storage tank by a pump and stored for later use;
(2) ball-milling quicklime to fineness, sieving with a 180-mesh sieve, and conveying the quicklime to a lime powder bin for storage when the sieve is 10% -20% of the rest;
(3) ball-milling the used magnesia-calcium bricks until the fineness of the magnesia-calcium bricks is over a 180-mesh sieve, and conveying the magnesia-calcium bricks to a magnesia-calcium brick powder bin for storage when the balance of the magnesia-calcium bricks is 15% -40%;
(4) aluminum powder and water are mixed according to the mass ratio of 1: 6 to prepare aluminum powder liquid for standby;
(5) the fly ash mortar, the quicklime powder, the used magnesia-calcium brick powder and the aluminum powder liquid are measured according to the mixture ratio, and the feeding sequence is as follows: conveying the fly ash mortar to a stirring tank through a weigher, wherein the mass of used magnesia-calcium brick powder is 5-25% of the mass of quicklime, adding the used magnesia-calcium brick powder into the stirring tank through the weigher, mixing and stirring the used magnesia-calcium brick powder with the fly ash mortar for 30-40 seconds, adding quicklime powder, wherein the mass of the quicklime powder is 18-25% of the mass of the fly ash mortar, mixing and stirring the mixture for 180-220 seconds, adding aluminum powder liquid, the mass of the aluminum powder liquid is 2-5% of the mass of the quicklime, and pouring the mixture into a mold vehicle after 40-50 seconds;
(6) the pouring time is 50-70 seconds, and after the pouring is finished, the mold vehicle enters a drill rod inserting area;
(7) inserting a drill rod, arranging a steel bar mesh in the plate blank, placing the steel bar mesh in the concrete plate through the drill rod, and making a wire rod of the steel bar mesh with the diameter larger than 5 mm;
(8) moving the mould vehicle into a static room after inserting the drill rod, starting static curing and gas generation, gradually thickening and condensing, keeping the temperature of the static room at 45-50 ℃, and forming a blank with certain strength after static curing for 1.5-2 hours;
(9) the drill rod is pulled by a drill rod pulling crane, the die is turned to the area of the turnover crane after the drill rod is pulled, and turnover demoulding is carried out by the turnover crane;
(10) cutting the blank after demoulding, and performing autoclaved curing in an autoclave after cutting, wherein the autoclaved curing system is as follows: vacuumizing for 50 minutes under 0 to-0.07 MPa; heating to 174-190 ℃ within 2 hours, and boosting the pressure to-0.06-1.2 MPa; keeping the temperature at 174-190 ℃ and keeping the pressure constant at 1.2MPa for 6 hours; cooling to normal temperature within 2 hours, and reducing the pressure to 1.2-0 MPa; the time for the product to enter and exit the kettle is 0.5 hour; the whole curing period is 11 hours and 20 minutes;
(11) unloading after the kettle: and after the autoclave curing is finished, opening a kettle door, and unloading the kettle to obtain a finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810610104.2A CN108640623B (en) | 2018-06-13 | 2018-06-13 | Method for utilizing used magnesia-calcium brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810610104.2A CN108640623B (en) | 2018-06-13 | 2018-06-13 | Method for utilizing used magnesia-calcium brick |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108640623A CN108640623A (en) | 2018-10-12 |
| CN108640623B true CN108640623B (en) | 2020-08-25 |
Family
ID=63752478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810610104.2A Active CN108640623B (en) | 2018-06-13 | 2018-06-13 | Method for utilizing used magnesia-calcium brick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108640623B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114409366A (en) * | 2021-12-24 | 2022-04-29 | 苏州良浦天路新型建材有限公司 | Aerated concrete plate beneficial to recycling and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1458105A (en) * | 2002-05-16 | 2003-11-26 | 同济大学高新建筑技术设计研究所 | Ash and slag composite burning-free brick for building |
| US6773500B1 (en) * | 2000-05-31 | 2004-08-10 | Isg Resources, Inc. | Fiber reinforced aerated concrete and methods of making same |
| CN103758274A (en) * | 2014-01-16 | 2014-04-30 | 太原钢铁(集团)有限公司 | Production method of aerated concrete panel |
-
2018
- 2018-06-13 CN CN201810610104.2A patent/CN108640623B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6773500B1 (en) * | 2000-05-31 | 2004-08-10 | Isg Resources, Inc. | Fiber reinforced aerated concrete and methods of making same |
| CN1458105A (en) * | 2002-05-16 | 2003-11-26 | 同济大学高新建筑技术设计研究所 | Ash and slag composite burning-free brick for building |
| CN103758274A (en) * | 2014-01-16 | 2014-04-30 | 太原钢铁(集团)有限公司 | Production method of aerated concrete panel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108640623A (en) | 2018-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112266264B (en) | Aerated concrete based on synergistic effect of alkali excitation and accelerated carbonization and preparation method thereof | |
| CN113968701A (en) | CO (carbon monoxide)2Light concrete for driving consolidation and preparation method thereof | |
| CN102206095A (en) | Aerated concrete building block and preparation technology thereof | |
| CN107382245A (en) | A kind of fine coal sand-lime autoclave aerated concrete building block and preparation method thereof | |
| CN114956761B (en) | Phosphogypsum-based ecological cement foam light soil and preparation method thereof | |
| CN103011886A (en) | Autoclaved aerated concrete block and manufacturing method thereof | |
| CN101412633B (en) | Method for preparing aerated concrete from phosphate slag | |
| CN105036677A (en) | Autoclaved aerated concrete block or plate and preparation method thereof | |
| CN108164217A (en) | A kind of room temperature maintenance ultra-high performance concrete and preparation method thereof | |
| CN105175003A (en) | Non-lime fly ash autoclaved aerated concrete and preparation method thereof | |
| CN108640623B (en) | Method for utilizing used magnesia-calcium brick | |
| CN101289326A (en) | Process for preparing vapour pressure air-entrained concrete light heat-insulation fireproof bricks by porcelain clay tailings | |
| CN102092998A (en) | Sand aerated concrete building block produced from carbide slag instead of cement and production method thereof | |
| CN111497008A (en) | Method for producing aerated concrete building block by lime wet pulping | |
| CN115893967A (en) | Low-carbon type multi-element composite early-strength steam-curing-free concrete prefabricated part and preparation method thereof | |
| KR101991317B1 (en) | cement clinker composition | |
| CN114075064B (en) | Method for preparing aerated panel by using multistage aluminum powder and aerated panel prepared by method | |
| CN115594469A (en) | Low-drying-shrinkage 3D printing concrete and preparation method thereof | |
| CN114702287A (en) | Printing material and preparation method and application thereof | |
| CN114890809A (en) | Steel slag-based high-carbon-fixation-quantity non-autoclaved aerated concrete and preparation method thereof | |
| CN114956745A (en) | Quick-setting foaming cement for grouting and preparation method thereof | |
| CN113715160A (en) | Production process of high-strength aerated concrete slab | |
| CN112341051A (en) | Aerated concrete and preparation method thereof | |
| KR20180088774A (en) | Mixture of early strength for cement concrete including slag and manufacturing method of the same | |
| CN113998969B (en) | High-sulfur steel slag solid waste cementing material and preparation method thereof |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |