CN108640597A - Method for preparing carbon-fixing pervious concrete by utilizing waste concrete - Google Patents
Method for preparing carbon-fixing pervious concrete by utilizing waste concrete Download PDFInfo
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- CN108640597A CN108640597A CN201810467809.3A CN201810467809A CN108640597A CN 108640597 A CN108640597 A CN 108640597A CN 201810467809 A CN201810467809 A CN 201810467809A CN 108640597 A CN108640597 A CN 108640597A
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- waste gas
- industrial waste
- pervious concrete
- concrete
- pervious
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- 239000011380 pervious concrete Substances 0.000 title claims abstract description 64
- 239000004567 concrete Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000002699 waste material Substances 0.000 title abstract description 6
- 239000007789 gas Substances 0.000 claims abstract description 66
- 239000002440 industrial waste Substances 0.000 claims abstract description 62
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 36
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 18
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 239000000428 dust Substances 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 29
- 229910052799 carbon Inorganic materials 0.000 claims description 29
- 230000009919 sequestration Effects 0.000 claims description 27
- 238000005255 carburizing Methods 0.000 claims description 17
- 239000003153 chemical reaction reagent Substances 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000004568 cement Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000012744 reinforcing agent Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 239000011398 Portland cement Substances 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 abstract description 11
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000003763 carbonization Methods 0.000 abstract 3
- 238000009417 prefabrication Methods 0.000 abstract 2
- 238000000465 moulding Methods 0.000 abstract 1
- 230000015271 coagulation Effects 0.000 description 5
- 238000005345 coagulation Methods 0.000 description 5
- 239000002689 soil Substances 0.000 description 4
- 239000003673 groundwater Substances 0.000 description 3
- 238000009738 saturating Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005713 exacerbation Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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
- 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
- C04B18/167—Recycled materials, i.e. waste materials reused in the production of the same 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/0038—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by superficial sintering or bonding of particulate matter
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
- C04B40/0231—Carbon dioxide hardening
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a method for preparing carbon-fixing pervious concrete by utilizing waste concrete, which comprises the steps of crushing the waste concrete to obtain required aggregate, simultaneously carrying out dust removal treatment on industrial waste gas, mixing the industrial waste gas with air to control the required temperature, carrying out carbonization reaction on the industrial waste gas and a blended pervious concrete mixture, then, when the pervious concrete mixture enters a prefabrication molding and hardening maintenance stage, mixing the carbonized industrial waste gas with the non-carbonized industrial waste gas after dust removal, injecting the mixed industrial waste gas into a pervious concrete carbon-fixing chamber to carry out carbonization reaction with the pervious concrete, and thus, repeatedly circulating the industrial waste gas to carry out carbonization reaction with the pervious concrete until prefabrication maintenance is finished. Therefore, the method can fix the carbon dioxide in the industrial waste gas in the preparation process of the pervious concrete, can reduce the content of the carbon dioxide in the industrial waste gas, can ensure the applicability of the pervious concrete, and realizes the resource utilization of the waste concrete.
Description
Technical field
It is specifically a kind of saturating using discarded concrete preparation carbon sequestration the present invention relates to a kind of preparation method of pervious concrete
The method of water coagulation soil.
Background technology
Currently, with the exacerbation of problem of environmental pollution, the discharge of greenhouse effects and greenhouse gases is increasingly taken seriously, greatly
Type Industrial Boiler, power plant flue gas in contain a large amount of carbon dioxide gas, if be largely discharged into air, it will to environment
Cause prodigious influence.It is existing research shows that：There is concrete the ability of absorbing carbon dioxide, the carbon of concrete to converge in full life
Can all it occur in period.
With the continuous development of urban modernization construction, each place in city, which can all use, arrives armored concrete, before city
City road surface is mainly waterproof pavement, since the respiratory of waterproof pavement is poor, can not permeate rainwater.And present life and work
Industry with water still based on underground water, excessive exploitation so that level of ground water drastically declines, and earth's surface ecology starts unbalance, environmental problem
It is increasingly severe.For recharge of groundwater resource, therefore more and more road surfaces are laid with using pervious concrete, pervious concrete
It is Eco-friendly concrete, pervious concrete has the characteristics that porous structure, porosity are big, can permeate rainwater, increases city
Groundwater resources improve urban climate, environmental protection.Pervious concrete can be widely used for square, pavement, in park road and
Parking lot etc..The patent No.:ZL201010185569.1, patent name are：" a kind of pervious concrete and preparation method thereof ", the party
Method prepares pervious concrete using Aggregate of recycled concrete and composite gel material, but not yet relates to how solid in preparation process
Determine carbon dioxide.Additionally, due at present there is more discarded concrete to cause to generate more building waste, environment is caused
It influences.Therefore, how to be fixed in pervious concrete preparation process using discarded concrete carbon dioxide in industrial waste gas at
For urgent need to resolve the problem of.
Invention content
It is permeable mixed using discarded concrete preparation carbon sequestration that in view of the above existing problems in the prior art, the present invention provides a kind of
The method for coagulating soil, can consolidate the carbon dioxide in industrial waste gas in pervious concrete preparation process using discarded concrete
It is fixed, to which discarded concrete can not only be utilized to reduce the content of carbon dioxide in industrial waste gas, while it can guarantee that carbon sequestration is permeable mixed
Coagulate the applicable performance of soil.
To achieve the goals above, the technical solution adopted by the present invention is：It is a kind of saturating using discarded concrete preparation carbon sequestration
The method of water coagulation soil, the specific steps are：
A, preliminary broken pretreatment carried out to discarded concrete using crushing plant, milled and screening process, to obtain
Required coarse aggregate and fine aggregate；
B, industrial waste gas is first passed through into dust filter unit and is dusted processing；
C, the industrial waste gas of dedusting is mixed with normal temperature air, make mixed industrial waste gas temperature be 30 DEG C~
40℃；
D, according to the performance parameter reached needed for pervious concrete, which need to meet country's mark of pervious concrete
Standard, and then determine the existing proportioning of the coarse aggregate and fine aggregate that are obtained in used reinforcing agent, cement, water and step A, then
Reinforcing agent, cement, water, coarse aggregate and fine aggregate in mixing vessel be mixed and form pervious concrete mixture,
The mixing time is 10~15min, continues into mixing vessel injection step C in mixed process treated industrial waste gas
Until stopping after being mixed, make pervious concrete mixture that carburizing reagent occur with the carbon dioxide in industrial waste gas,
And the industrial waste gas after carburizing reagent is collected；
E, pervious concrete mixture is placed in prefabricated mould, and ensures the quality of vibrating needed for pervious concrete,
Then prefabricated mould is put into closed pervious concrete carbon sequestration room, then the injection step C into pervious concrete carbon sequestration room
Treated industrial waste gas, while making the indoor humidity of pervious concrete carbon sequestration be 60%~80% by humidifier, make coagulation
Native mixture continues that carburizing reagent occurs with the carbon dioxide in industrial waste gas, and the industrial waste gas after carburizing reagent is received
Collection, curing time of the concrete in prefabricated mould are not less than 15 days；
F, the industrial waste gas after carburizing reagent that step D and step E is collected is replaced normal temperature air in step C and removed
The industrial waste gas of dirt is mixed, and it is 30 DEG C~40 DEG C to make mixed industrial waste gas temperature, and refills pervious concrete
It in carbon sequestration room, moves in circles, final industrial waste gas is discharged after the concrete curing time until reaching, while from prefabricated mould
It is middle to take out Manufactured pervious concrete.
Further, pervious concrete carbon sequestration room is transparent rubber tank body, and volume is the 3~5 of prefabricated mould volume
Times.
Further, the cement is the Portland cement that compression strength is not less than 42.5 grades.
Compared with prior art, the present invention is used is added pervious concrete preparation process by discarded concrete and industrial waste gas
Mode, first discarded concrete is crushed, obtains coarse aggregate and fine aggregate, while processing is dusted to industrial waste gas,
Avoiding the dust that it is rich in influences the quality of pervious concrete, then mixes industrial waste gas with air, controlled at 30
DEG C~40 DEG C, the waste heat of industrial waste gas can be made full use of in this way, can accelerate the dioxy in discarded concrete absorption industrial waste gas
Change carbon gas, and can be due to the intensity of discarded concrete carburizing reagent raising pervious concrete in preparation process.Therefore saturating
It is passed through industrial waste gas in water coagulation earth forming and hardening process, the carbon dioxide in industrial waste gas can be fixed, temperature is reduced
The discharge of room gas；Pervious concrete carbon sequestration indoor humidity is controlled 60%~80%, the maintenance of pervious concrete is contributed to
And the fixation carbon dioxide of high-speed, the industrial waste gas being carbonized is mixed with the industrial waste gas after dedusting, and repetitive cycling
Into concrete carbon sequestration room, the purpose is to reduce the carbon dioxide content for being discharged into industrial waste gas in air to greatest extent.Therefore this
Invention can not only reduce the content of carbon dioxide in industrial waste gas, while can guarantee the applicable performance of pervious concrete, in addition real
Show discarded concrete recycling, reduces building waste.
Specific implementation mode
The invention will be further described below.
Embodiment：The present invention the specific steps are：
A, preliminary broken pretreatment carried out to discarded concrete using crushing plant, milled and screening process, to obtain
Required coarse aggregate and fine aggregate；
B, industrial waste gas is first passed through into dust filter unit and is dusted processing；
C, the industrial waste gas of dedusting is mixed with normal temperature air, make mixed industrial waste gas temperature be 30 DEG C~
40℃；
D, according to the performance parameter reached needed for pervious concrete, which need to meet country's mark of pervious concrete
Standard, and then determine the existing proportioning of the coarse aggregate and fine aggregate that are obtained in used reinforcing agent, cement, water and step A, then
Reinforcing agent, cement, water, coarse aggregate and fine aggregate in mixing vessel be mixed and form pervious concrete mixture,
The mixing time is 10~15min, continues into mixing vessel injection step C in mixed process treated industrial waste gas
Until stopping after being mixed, make pervious concrete mixture that carburizing reagent occur with the carbon dioxide in industrial waste gas,
And the industrial waste gas after carburizing reagent is collected；
E, pervious concrete mixture is placed in prefabricated mould, and ensures the quality of vibrating needed for pervious concrete,
Then prefabricated mould is put into closed pervious concrete carbon sequestration room, then the injection step C into pervious concrete carbon sequestration room
Treated industrial waste gas, while making the indoor humidity of pervious concrete carbon sequestration be 60%~80% by humidifier, make coagulation
Native mixture continues that carburizing reagent occurs with the carbon dioxide in industrial waste gas, and the industrial waste gas after carburizing reagent is received
Collection, curing time of the concrete in prefabricated mould are not less than 15 days；
F, the industrial waste gas after carburizing reagent that step D and step E is collected is replaced normal temperature air in step C and removed
The industrial waste gas of dirt is mixed, and it is 30 DEG C~40 DEG C to make mixed industrial waste gas temperature, and refills pervious concrete
It in carbon sequestration room, moves in circles, final industrial waste gas is discharged after the concrete curing time until reaching, while from prefabricated mould
It is middle to take out Manufactured pervious concrete.
Further, concrete carbon sequestration room is transparent rubber tank body, and volume is 3~5 times of prefabricated mould volume；It adopts
With transparent rubber tank body convenient for the maintenance situation of observation pervious concrete, and volume uses 3~5 times of prefabricated mould volume,
Can guarantee in concrete carbon sequestration room, there is enough spaces to carry out carburizing reagent for industrial waste gas and pervious concrete.
Further, Portland cement or other kinds of the compression strength not less than 42.5 grades may be used in the cement
Cement, it is preferred to use compression strength is not less than 42.5 grades of Portland cement, not only can reach required compression strength, and
And its carbonation rate is faster, carbon sequestration effect is more preferable.
Claims (3)
1. a kind of method preparing carbon sequestration pervious concrete using discarded concrete, which is characterized in that the specific steps are：
A, preliminary broken pretreatment carried out to discarded concrete using crushing plant, milled and screening process, needed for obtaining
Coarse aggregate and fine aggregate；
B, industrial waste gas is first passed through into dust filter unit and is dusted processing；
C, the industrial waste gas of dedusting is mixed with normal temperature air, it is 30 DEG C~40 to make mixed industrial waste gas temperature
℃；
D, according to the performance parameter reached needed for pervious concrete, in reinforcing agent, cement, water and step A used by determining
Then the proportioning of the coarse aggregate and fine aggregate that arrive carries out reinforcing agent, cement, water, coarse aggregate and fine aggregate in mixing vessel
Mixing forms pervious concrete mixture, and the mixing time is 10~15min, in mixed process into mixing vessel
Stop after continuing injection step C treated industrial waste gas until being mixed, makes pervious concrete mixture and industry
Carburizing reagent occurs for the carbon dioxide in exhaust gas, and the industrial waste gas after carburizing reagent is collected；
E, pervious concrete mixture is placed in prefabricated mould, and ensures the quality of vibrating needed for pervious concrete, then
Prefabricated mould is put into closed pervious concrete carbon sequestration room, the then injection step C processing into pervious concrete carbon sequestration room
Industrial waste gas afterwards, while making the indoor humidity of pervious concrete carbon sequestration be 60%~80% by humidifier, so that concrete is mixed
It closes object to continue that carburizing reagent occurs with the carbon dioxide in industrial waste gas, and the industrial waste gas after carburizing reagent is collected,
Curing time of the concrete in prefabricated mould is not less than 15 days；
F, the industrial waste gas after the carburizing reagent of step D and step E collections is replaced into the normal temperature air in step C and dedusting
Industrial waste gas is mixed, and it is 30 DEG C~40 DEG C to make mixed industrial waste gas temperature, and refills pervious concrete carbon sequestration
Interior is moved in circles, until final industrial waste gas is discharged after reaching the concrete curing time, while being taken from prefabricated mould
Go out Manufactured pervious concrete.
2. a kind of method preparing carbon sequestration pervious concrete using discarded concrete according to claim 1, feature exist
In pervious concrete carbon sequestration room is transparent rubber tank body, and volume is 3~5 times of prefabricated mould volume.
3. a kind of method preparing carbon sequestration pervious concrete using discarded concrete according to claim 1, feature exist
In the cement is the Portland cement that compression strength is not less than 42.5 grades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810467809.3A CN108640597A (en) | 2018-05-16 | 2018-05-16 | Method for preparing carbon-fixing pervious concrete by utilizing waste concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810467809.3A CN108640597A (en) | 2018-05-16 | 2018-05-16 | Method for preparing carbon-fixing pervious concrete by utilizing waste concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108640597A true CN108640597A (en) | 2018-10-12 |
Family
ID=63756162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810467809.3A Withdrawn CN108640597A (en) | 2018-05-16 | 2018-05-16 | Method for preparing carbon-fixing pervious concrete by utilizing waste concrete |
Country Status (1)
| Country | Link |
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| CN (1) | CN108640597A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109320290A (en) * | 2018-11-02 | 2019-02-12 | 山西大学 | A kind of processing method of concrete prefabricated product enhancing carbon sequestration |
| CN111805710A (en) * | 2020-07-23 | 2020-10-23 | 杨阳 | Recycled concrete segment hollow square column mold and using method thereof |
| CN114100340A (en) * | 2021-12-02 | 2022-03-01 | 徐州工程学院 | System for strengthening mineralization and fixation of carbon dioxide of cement product |
| CN115608745A (en) * | 2022-10-14 | 2023-01-17 | 太仓金马智能装备有限公司 | System and method for producing carbon-fixing recycled aggregate by using building decoration garbage |
-
2018
- 2018-05-16 CN CN201810467809.3A patent/CN108640597A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109320290A (en) * | 2018-11-02 | 2019-02-12 | 山西大学 | A kind of processing method of concrete prefabricated product enhancing carbon sequestration |
| CN111805710A (en) * | 2020-07-23 | 2020-10-23 | 杨阳 | Recycled concrete segment hollow square column mold and using method thereof |
| CN114100340A (en) * | 2021-12-02 | 2022-03-01 | 徐州工程学院 | System for strengthening mineralization and fixation of carbon dioxide of cement product |
| CN115608745A (en) * | 2022-10-14 | 2023-01-17 | 太仓金马智能装备有限公司 | System and method for producing carbon-fixing recycled aggregate by using building decoration garbage |
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Application publication date: 20181012 |
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