CN109485354A - A kind of preparation method of carbon sequestration precast concrete - Google Patents
A kind of preparation method of carbon sequestration precast concrete Download PDFInfo
- Publication number
- CN109485354A CN109485354A CN201910083685.3A CN201910083685A CN109485354A CN 109485354 A CN109485354 A CN 109485354A CN 201910083685 A CN201910083685 A CN 201910083685A CN 109485354 A CN109485354 A CN 109485354A
- Authority
- CN
- China
- Prior art keywords
- concrete
- waste gas
- industrial waste
- precast concrete
- carbon sequestration
- 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
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
- B01D53/1475—Removing carbon dioxide
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of preparation methods of carbon sequestration precast concrete, processing first is dusted to industrial waste gas, then industrial waste gas is mixed with air and controls its required temperature, industrial waste gas is set to carry out carburizing reagent with the concrete mix that ingredient is completed, then enter prefabricated component molding and hardening maintenance stage in concrete mix, after the industrial waste gas being carbonized is mixed with the industrial waste gas that is not carbonized after dedusting again, it injects concrete carbon sequestration room and precast concrete carries out carburizing reagent, it recycles industrial waste gas repeatedly and carries out carburizing reagent with precast concrete, until prefabricated component maintenance is completed.To which the present invention can be fixed the carbon dioxide in industrial waste gas in precast concrete preparation process, the content of carbon dioxide in industrial waste gas can not only be reduced, while intensity needed for can guarantee precast concrete.
Description
Technical field
The present invention relates to a kind of preparation method of precast concrete, the preparation of specifically a kind of carbon sequestration precast concrete
Method.
Background technique
With the development of society, in order to reduce the environmental pollution of construction site and shorten the time of construction, at present more
Carry out more buildings and uses assembled architecture form, since assembled architecture is to be poured architectural prefab in first place indoors,
Then each prefabricated component is transported to construction site and is directly assembled, this mode can not only substantially reduce construction site
The environmental pollution states such as fugitive dust, and can effectively shorten construction time of building.In addition now studies have shown that: concrete has suction
The ability of carbon dioxide is received, the carbon remittance of concrete can all occur in Life cycle.Due to adding with problem of environmental pollution
Weight, the discharge of greenhouse effects and greenhouse gases is increasingly taken seriously, large scale industry boiler, power plant flue gas in containing a large amount of
Carbon dioxide gas, if be largely discharged into air, it will cause very big influence to environment.
The patent No.: ZL201510031377.8, patent name are as follows: " a kind of that there is carbon sequestration function using construction material manufacture
Can concrete product method " disclose a kind of construction material and recycle and seal carbon dioxide production coagulation in industrial smoke up for safekeeping
The method of earth building blocks or porous brick, but it relates only to construction material powder and adhesive and water is mixed to form concrete system
Product, the mechanical property that no aggregate addition will cause concrete product substantially reduce, destructible；Meanwhile this method be not yet related to
Remaining industrial smoke processing after concrete product carburizing reagent, the high temperature for also not considering industrial smoke, the dust being rich in are to coagulation
The negative effect of native product.Therefore, carbon dioxide how is fixed in the preparation process of precast concrete is discharged into it not
The problem of becoming urgent need to resolve in atmosphere.
Summary of the invention
In view of the above existing problems in the prior art, the present invention provides a kind of preparation method of carbon sequestration precast concrete,
The carbon dioxide in industrial waste gas can be fixed in precast concrete preparation process, so that Industry Waste can not only be reduced
The content of carbon dioxide in gas, while intensity needed for can guarantee precast concrete.
To achieve the goals above, the technical solution adopted by the present invention is that: a kind of preparation side of carbon sequestration precast concrete
Method, the specific steps are that:
A, industrial waste gas is first passed through into dust filter unit and is dusted processing；
B, the industrial waste gas of dedusting is mixed with normal temperature air, make 30 DEG C of mixed industrial waste gas temperature~
40℃；
C, the performance parameter reached according to needed for precast concrete, the performance parameter need to meet the state of precast concrete
Family's standard, and then determine the existing proportion of coarse aggregate, fine aggregate, cement and water, then by coarse aggregate, fine aggregate, cement and water
It carries out being mixed in mixing vessel and forms concrete mix, mixing time is 10~15min, in mixed process
Stop after continuing injection step B treated industrial waste gas until being mixed into mixing vessel, makes concrete mixing
Carburizing reagent occurs for the carbon dioxide in object and industrial waste gas, and the industrial waste gas after carburizing reagent is collected；
D, concrete mix and reinforcing bar are placed in prefabricated-member mould, and quality of vibrating needed for ensuring concrete,
Then prefabricated-member mould is put into closed concrete carbon sequestration room, then into concrete carbon sequestration room after injection step B processing
Industrial waste gas, while the indoor humidity 35%~65% of concrete carbon sequestration is made by humidifier, make concrete mix with
Carbon dioxide in industrial waste gas continues that carburizing reagent occurs, and the industrial waste gas after carburizing reagent is collected, concrete
Curing time in prefabricated-member mould is not less than 28 days；
E, the industrial waste gas after carburizing reagent that step C and step D are collected is replaced normal temperature air in step B and removed
The industrial waste gas of dirt is mixed, and makes 30 DEG C~40 DEG C of mixed industrial waste gas temperature, and refill concrete carbon sequestration
Interior is moved in circles, until final industrial waste gas is discharged after reaching the concrete curing time, while from prefabricated-member mould
Take out manufactured precast concrete.
Further, concrete carbon sequestration room is transparent rubber tank body, and volume is 3~5 times of prefabricated-member mould volume.
Further, the reinforcing bar of the precast concrete for antirust reinforcing bar or has carried out antirust pretreatment regular reinforcement.
Further, the cement is ordinary portland cement.
Further, the coarse aggregate and fine aggregate are to carry out preliminary broken pre- place to discarded concrete using crushing plant
It manages, milling is made with after screening process.
Compared with prior art, the present invention is by the way of being added precast concrete preparation process for industrial waste gas, first
Processing is dusted to industrial waste gas, avoiding the dust that it is rich in influences the quality of precast concrete, then by Industry Waste
Gas mixes with air, and controlled at 30 DEG C~40 DEG C, can make full use of the waste heat of industrial waste gas in this way, can accelerate concrete
The carbon dioxide gas in industrial waste gas is absorbed, and can be since carburizing reagent raising is concrete prefabricated during the preparation process for concrete
The intensity of part.Therefore it is passed through industrial waste gas in precast concrete molding and hardening process, it can be to the dioxy in industrial waste gas
Change carbon to be fixed, reduces the discharge of greenhouse gases；Concrete carbon sequestration indoor humidity is controlled 35%~65%, helps to mix
The solidifying soil maintenance of prefabricated component and the fixation carbon dioxide of high-speed, the industrial waste gas after the industrial waste gas being carbonized and dedusting is mixed
It closes, and repetitive cycling enters concrete carbon sequestration room, the purpose is to reduce to be discharged into two of industrial waste gas in atmosphere to greatest extent
Content of carbon oxide.Therefore the present invention can not only reduce the content of carbon dioxide in industrial waste gas, while can guarantee precast concrete
Required intensity.
Specific embodiment
The invention will be further described below.
Embodiment: specific steps of the invention are as follows:
A, industrial waste gas is first passed through into dust filter unit and is dusted processing；
B, the industrial waste gas of dedusting is mixed with normal temperature air, make 30 DEG C of mixed industrial waste gas temperature~
40℃；
C, the performance parameter reached according to needed for precast concrete, the performance parameter need to meet the state of precast concrete
Family standard, and then determine used by coarse aggregate, fine aggregate, cement and water existing proportion, then by coarse aggregate, fine aggregate,
Cement and water, which carry out being mixed in mixing vessel, forms concrete mix, and mixing time is 10~15min, mixed
Stop after continuing injection step B treated industrial waste gas until being mixed into mixing vessel during conjunction, makes to mix
Carburizing reagent occurs for the carbon dioxide in solidifying soil mixture and industrial waste gas, and the industrial waste gas after carburizing reagent is received
Collection；
D, concrete mix and reinforcing bar are placed in prefabricated-member mould, and quality of vibrating needed for ensuring concrete,
Then prefabricated-member mould is put into closed concrete carbon sequestration room, then into concrete carbon sequestration room after injection step B processing
Industrial waste gas, while the indoor humidity 35%~65% of concrete carbon sequestration is made by humidifier, make concrete mix with
Carbon dioxide in industrial waste gas continues that carburizing reagent occurs, and the industrial waste gas after carburizing reagent is collected, concrete
Curing time in prefabricated-member mould is not less than 28 days；
E, the industrial waste gas after carburizing reagent that step C and step D are collected is replaced normal temperature air in step B and removed
The industrial waste gas of dirt is mixed, and makes 30 DEG C~40 DEG C of mixed industrial waste gas temperature, and refill concrete carbon sequestration
Interior is moved in circles, until final industrial waste gas is discharged after reaching the concrete curing time, while from prefabricated-member mould
Take out manufactured precast concrete.
Further, concrete carbon sequestration room is transparent rubber tank body, and volume is 3~5 times of prefabricated-member mould volume；
Using transparent rubber tank body convenient for the maintenance situation of observation precast concrete, and volume uses the 3 of prefabricated-member mould volume
~5 times, it is ensured that in concrete carbon sequestration room there is enough spaces be carbonized instead for industrial waste gas and precast concrete
It answers.
Further, the reinforcing bar of the precast concrete can use antirust reinforcing bar or carry out antirust pretreatment ordinary steel
Muscle can also use regular reinforcement, it is preferred to use the reinforcing bar with antirust, this antirust function can effectively reduce concrete carbonization
Corrosion to reinforcing bar.
Further, the cement can use ordinary portland cement or other kind cement, it is preferred to use common silicic acid
Salt cement, not only performance is stablized, but also its carbonation rate is faster, and carbon sequestration effect is more preferable.
Further, the coarse aggregate and fine aggregate are to carry out preliminary broken pre- place to discarded concrete using crushing plant
It manages, milling is made with after screening process.Recycling and reusing effectively is carried out to discarded concrete.
Claims (5)
1. a kind of preparation method of carbon sequestration precast concrete, which is characterized in that the specific steps are that:
A, industrial waste gas is first passed through into dust filter unit and is dusted processing；
B, the industrial waste gas of dedusting is mixed with normal temperature air, makes mixed industrial waste gas temperature 30 DEG C~40
℃；
C, the performance parameter reached according to needed for precast concrete determines used coarse aggregate, fine aggregate, cement and water
Then coarse aggregate, fine aggregate, cement and water are carried out mixing in mixing vessel and form concrete mix, mixed by proportion
Conjunction mixing time is 10~15min, and continuing injection step B into mixing vessel in mixed process, treated that industrial waste gas is straight
To stopping after mixing, the carbon dioxide in concrete mix and industrial waste gas is made to occur carburizing reagent, and by carbon
Industrial waste gas after changing reaction is collected；
D, concrete mix and reinforcing bar are placed in prefabricated-member mould, and quality of vibrating needed for ensuring concrete, then
Prefabricated-member mould is put into closed concrete carbon sequestration room, then injection step B treated the work into concrete carbon sequestration room
Industry exhaust gas, while the indoor humidity 35%~65% of concrete carbon sequestration is made by humidifier, make concrete mix and industry
Carbon dioxide in exhaust gas continues that carburizing reagent occurs, and the industrial waste gas after carburizing reagent is collected, and concrete is pre-
Curing time in part forming die is not less than 28 days；
E, the industrial waste gas after the carburizing reagent for collecting step C and step D replaces normal temperature air and dedusting in step B
Industrial waste gas is mixed, and makes 30 DEG C~40 DEG C of mixed industrial waste gas temperature, and refill in concrete carbon sequestration room,
It moves in circles, until final industrial waste gas is discharged after reaching the concrete curing time, while being taken out from prefabricated-member mould
Manufactured precast concrete.
2. a kind of preparation method of carbon sequestration precast concrete according to claim 1, which is characterized in that the concrete
Carbon sequestration room is transparent rubber tank body, and volume is 3~5 times of prefabricated-member mould volume.
3. a kind of preparation method of carbon sequestration precast concrete according to claim 1, which is characterized in that the concrete
The reinforcing bar of prefabricated component is antirust reinforcing bar or has carried out antirust pretreatment regular reinforcement.
4. a kind of preparation method of carbon sequestration precast concrete according to claim 1, which is characterized in that the cement is
Ordinary portland cement.
5. a kind of preparation method of carbon sequestration precast concrete according to claim 1, which is characterized in that the coarse aggregate
Be with fine aggregate preliminary broken pretreatment is carried out to discarded concrete using crushing plant, mill and screening process after be made.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810468190.8A CN108640598A (en) | 2018-05-16 | 2018-05-16 | A kind of preparation method of carbon sequestration precast concrete |
| CN2018104681908 | 2018-05-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109485354A true CN109485354A (en) | 2019-03-19 |
Family
ID=63756147
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810468190.8A Withdrawn CN108640598A (en) | 2018-05-16 | 2018-05-16 | A kind of preparation method of carbon sequestration precast concrete |
| CN201910083685.3A Pending CN109485354A (en) | 2018-05-16 | 2019-01-29 | A kind of preparation method of carbon sequestration precast concrete |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810468190.8A Withdrawn CN108640598A (en) | 2018-05-16 | 2018-05-16 | A kind of preparation method of carbon sequestration precast concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN108640598A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115650662A (en) * | 2022-10-10 | 2023-01-31 | 浙江省建材集团有限公司 | Preparation method of direct hydration reinforced carbon-fixing concrete |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109320290B (en) * | 2018-11-02 | 2020-11-17 | 山西大学 | Processing method for reinforcing and carbon-fixing of concrete prefabricated product |
| JP6964299B2 (en) * | 2019-02-14 | 2021-11-10 | 太平洋セメント株式会社 | Carbon dioxide fixation method |
| CN112191093A (en) * | 2020-04-03 | 2021-01-08 | 太平洋水泥株式会社 | Method and device for fixing carbon dioxide by cement-based material |
| CN114180990B (en) * | 2021-12-16 | 2022-10-04 | 武汉理工大学 | Carbonization method and carbonization device for calcium silicate-containing mineral prefabricated part |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51114425A (en) * | 1975-03-31 | 1976-10-08 | Matsushita Electric Works Ltd | Production method of inorganic cured article |
| CN101139182A (en) * | 2007-08-17 | 2008-03-12 | 济南大学 | Carbonization maintenance aerated concrete |
| CN101343155A (en) * | 2008-08-29 | 2009-01-14 | 济南大学 | Regeneration aggregate made of carbonized maintaining castoff |
| CN103347838A (en) * | 2010-12-17 | 2013-10-09 | 中国电力株式会社 | Carbonation curing eqipment, process for producing carbonated concrete, and method for fixing carbon dioxide |
| CN104556882A (en) * | 2015-01-21 | 2015-04-29 | 中国科学院沈阳应用生态研究所 | Method for manufacturing concrete product with carbon sequestration function by using building materials |
-
2018
- 2018-05-16 CN CN201810468190.8A patent/CN108640598A/en not_active Withdrawn
-
2019
- 2019-01-29 CN CN201910083685.3A patent/CN109485354A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51114425A (en) * | 1975-03-31 | 1976-10-08 | Matsushita Electric Works Ltd | Production method of inorganic cured article |
| CN101139182A (en) * | 2007-08-17 | 2008-03-12 | 济南大学 | Carbonization maintenance aerated concrete |
| CN101343155A (en) * | 2008-08-29 | 2009-01-14 | 济南大学 | Regeneration aggregate made of carbonized maintaining castoff |
| CN103347838A (en) * | 2010-12-17 | 2013-10-09 | 中国电力株式会社 | Carbonation curing eqipment, process for producing carbonated concrete, and method for fixing carbon dioxide |
| CN104556882A (en) * | 2015-01-21 | 2015-04-29 | 中国科学院沈阳应用生态研究所 | Method for manufacturing concrete product with carbon sequestration function by using building materials |
Non-Patent Citations (2)
| Title |
|---|
| 张晏清: "《建筑结构材料》", 28 February 2016, 同济大学出版社 * |
| 袁迎曙: "《钢筋混凝土结构耐久性设计、评估与试验》", 31 August 2013, 中国矿业大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115650662A (en) * | 2022-10-10 | 2023-01-31 | 浙江省建材集团有限公司 | Preparation method of direct hydration reinforced carbon-fixing concrete |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108640598A (en) | 2018-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109485354A (en) | A kind of preparation method of carbon sequestration precast concrete | |
| Sharma et al. | Accelerated carbonation curing of cement mortars containing cement kiln dust: An effective way of CO2 sequestration and carbon footprint reduction | |
| CN112939538A (en) | Method for preparing recycled concrete product by utilizing and sealing carbon dioxide | |
| CA2853766C (en) | Concrete mix composition, mortar mix composition and method of making and curing concrete or mortar and concrete or mortar objects and structures | |
| CN105541384B (en) | A kind of ultralight foam concrete and preparation method thereof | |
| CN108714962A (en) | A method of preparing carbon sequestration precast concrete using discarded concrete | |
| CN101774790B (en) | Cement admixture and method for promoting concrete curing with carbon dioxide | |
| CN110218051A (en) | A kind of high strength lightweight aggregate concrete and its preparation process | |
| CN111556858A (en) | Method for enhancing mechanical strength and CO2 storage in cementitious products | |
| CN105174890A (en) | Composite light partition board and manufacturing method thereof | |
| CN109721297A (en) | A kind of baking-free ceramicite and preparation method thereof containing sludge and building waste | |
| JP2021514922A (en) | Suppression of corrosion in low-calcium silicate cement-based neutralized concrete | |
| CN114920538B (en) | Concrete regenerated powder carbonized brick and preparation method thereof | |
| CN109796169A (en) | A kind of preparation method of composite strengthening carbonization prefabrication | |
| CN108341618A (en) | A kind of non-steamed reactive powder concrete admixture and production method | |
| CN115321890A (en) | Solid waste base binder for carbon dioxide sequestration, preparation method and carbon dioxide sequestration method thereof | |
| CN112479667A (en) | Multielement solid waste concrete building block and preparation method thereof | |
| CN108640597A (en) | A method of preparing carbon sequestration pervious concrete using discarded concrete | |
| Wei et al. | Roles of subsequent curing on the pH evolution and further hydration for CO2 cured cement pastes | |
| JP2013107284A (en) | Cured body and method for producing the same | |
| JP6846744B2 (en) | Precast cement panel for residual formwork and its manufacturing method | |
| CN108484050A (en) | A kind of combination of inner and outside collaboration limitation armored concrete becomes rusty swollen method | |
| Trinugroho et al. | Optimum compressive strength of geopolymer concrete in variations comparison of ingredients and mixing time | |
| Gabitov et al. | Concrete: Previous and Future Technologies | |
| Karami et al. | Use of waste gypsum as construction low strength materials |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190319 |
|
| RJ01 | Rejection of invention patent application after publication |