CN106747176A - A kind of novel gelled material and its preparation and application method with carbon sequestration capacity - Google Patents
A kind of novel gelled material and its preparation and application method with carbon sequestration capacity Download PDFInfo
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- CN106747176A CN106747176A CN201611030701.5A CN201611030701A CN106747176A CN 106747176 A CN106747176 A CN 106747176A CN 201611030701 A CN201611030701 A CN 201611030701A CN 106747176 A CN106747176 A CN 106747176A
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- silicate bacteria
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- 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
- C04B28/14—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 calcium sulfate cements
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- 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
- 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
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
The invention discloses a kind of novel gelled material with carbon sequestration capacity and its preparation and application method, it is 10 to prepare cell concentration7~108The silicate bacteria bacterium solution of cell/mL, using the method for spray drying, using porous calcium carbonate or graphite load silicate bacteria, is prepared into silicate bacteria bacterium powder, mixes with calcium hydroxide and prepares the Binder Materials.By the Binder Materials and water mixing aftershaping, after standing 24 48 hours, it is put into pressure carbon dioxide kettle, keeps 0.2MPa 0.6MPa pressure, CO2Gas concentration 20% 100%, keeps ventilation 60 300 minutes, and the Binder Materials can complete consolidation.The preparation of Binder Materials of the present invention is completed at normal temperatures and pressures, and low energy consumption is pollution-free, and can with absorbing carbon dioxide, and in 3 days complete intensity growth, with significant energy-saving and emission-reduction meaning.
Description
Technical field
Preparation and application method the present invention relates to a kind of novel gelled material with carbon sequestration capacity, using graphite
Or porous calcium carbonate absorption microorganism prepares microbial germ powder, after being mixed into appropriate calcium hydroxide, can prepare a kind of with solid
The novel gelled material of carbon ability.The Binder Materials with absorbing carbon dioxide, and with gelling characteristic, can belong to after meeting water reaction
Building material technical field.
Technical background
Traditional portland is current the most widely used Binder Materials, but its production process has high energy consumption and height
The characteristics of pollution, substantial amounts of fossil resource is not only consumed, also give off substantial amounts of carbon dioxide.In recent years, carbon emission is subject to each
The great attention of government of state.Especially, China is coal and manufacture of cement and consumption big country in the world, the power plant of a large amount of high energy consumptions,
Refinery, cement plant are converged, and industry development at this stage still relies on traditional fossil energy substantially, and 70% in using energy source is coal
Charcoal, still in the coal epoch, even if this energy resource structure is also difficult to change completely to the year two thousand fifty, China will face CO2Emission reduction
Immense pressure.
But it is undeniable be, CO2It is also carbon source most abundant on the earth, therefore is considering how emission reduction CO2Premise
Under, can also be solidified and be regenerated as resource, carbon is gone back in the earth.The present invention just intends using the enzyme characteristic of microorganism, prepares one
Kind of the novel gelled material with carbon sequestration capacity, it can be with absorbing carbon dioxide, and with gelling characteristic after meeting water reaction.
The content of the invention
Technical problem：The present invention provides preparation formula and its user of a kind of novel gelled material with carbon sequestration capacity
Method.
Technical scheme：A kind of novel gelled material with carbon sequestration capacity, composition is calculated as with mass parts：1-50 parts of silicate
Bacterium bacterium powder, 100 parts of calcium hydroxides；Described silicate bacteria bacterium powder is using graphite or porous calcium carbonate as wall
Material, silicate bacteria obtains as core, spray drying, and silicate bacteria load capacity is 1.0 × 109–2.0×1010Cell/
Gram.
A kind of method for preparing the described novel gelled material with carbon sequestration capacity, step is：
(1) silicate bacteria is cultivated, its bacterium solution is obtained：Silicate bacteria is inoculated in the culture medium solution culture after sterilizing
Obtain the bacterium solution containing silicate bacteria；
(2) silicate bacteria bacterium powder is prepared：Using graphite or porous calcium carbonate as wall material, silicate bacteria conduct
Core, is spray-dried, and is prepared into silicate bacteria bacterium powder；
(3) Binder Materials is prepared：Silicate bacteria bacterium powder is well mixed with calcium hydroxide and obtains described Binder Materials.
Described culture medium solution contains peptone 2.0-10.0g/L, and beef leaching thing 1.0-8.0g/L, NaCl are 2.0-
10.0g/L, MnSO4·H2O is 2.0-10.0mg/L.
Described silicate bacteria bacterium solution cell concentration is 107~108Cell/mL.
Described condition of culture is to control pH for 6~8, in shaken cultivation 24-48h at 25~40 DEG C.
During described spray drying, EAT is controlled at 120~180 DEG C；Leaving air temp is controlled at 70~80 DEG C.
A kind of application method of the described novel gelled material with carbon sequestration capacity, constitutes in mass, by 15-40 parts
The Binder Materials mixes with 10 parts of water, after standing 24-48 hours, is put into pressure carbon dioxide kettle, 15-35 DEG C of temperature, relatively
Humidity 30%-70%, keeps 0.2MPa-0.6MPa pressure, CO2Gas concentration 20%-100%, keeps ventilation 60-300 minutes,
Binder Materials completes consolidation.
Beneficial effect：
(1) by the enzymeization of silicate bacteria act on can be in absorbing carbon dioxide and Binder Materials gypsum and hydroxide
There is hydration reaction in calcium, promote the crystallization of gypsum and lime, form intensity, and generate calcium carbonate with gelling and insoluble
Property organic matter EPS, further enhances intensity.
(2) compared to traditional portland, the preparation of this kind of Binder Materials is completed at normal temperatures and pressures, low energy
Consumption, it is pollution-free, and can be with absorbing carbon dioxide, with significant energy-saving and emission-reduction meaning.
(3) compared to traditional portland, this kind of Binder Materials heat evolution velocity is fast, and the increasing of intensity can be completed in 3 days
It is long.
Brief description of the drawings
Fig. 1 is having added of observing under electron scanning Electronic Speculum (a) embodiment 1 of silicate bacteria and to be not added with silicate bacteria
(b) embodiment 3 gelling hydrated product microstructure, will be obvious that the dense micro-structure of embodiment 1 is significantly increased
By force.
Hydrated product in the embodiment 3 observed under Fig. 2 electron scanning Electronic Speculum, includes the hydroxide not being carbonized also
Calcium, the calcium carbonate with gelling, the silicate bacteria thalline of residual and the insoluble organic matter EPS with gelling.
Fig. 3 is the XRD analysis collection of illustrative plates of the hydrated product of embodiment 1, is calcite through analyzing its main hydration products.
Fig. 4 is to have added (a) embodiment 1 of silicate bacteria and the gelling aquation of the embodiment 3 for being not added with silicate bacteria to produce
Thing thermogravimetric analysis, be will be obvious that in analysis result, and the decomposition of calcium carbonate is only found that in embodiment 1, and in (b) embodiment 3
Include the process that calcium carbonate and calcium hydroxide are thermally decomposed twice.
Specific embodiment
Silicate bacteria used by the present invention derives from Chinese industrial Culture Collection, and numbering is 23640.
Method of the present invention for preparing the novel gelled material with carbon sequestration capacity：
(1) silicate bacteria is cultivated, its bacterium solution is obtained：Silicate bacteria is inoculated in the culture medium solution after sterilizing, often
Rise culture medium and contain peptone 2.0-10.0g, beef leaching thing 1.0-8.0g, NaCl are 2.0-10.0g, MnSO4·H2O is
2.0-10.0mg, and it is 6~8 to control pH, in shaken cultivation 24-48h at 25~40 DEG C, obtains the bacterium containing silicate bacteria
Liquid；
(2) using graphite or porous calcium carbonate as wall material, silicate bacteria is spray-dried as core,
EAT is controlled at 120~180 DEG C；Leaving air temp is controlled at 70~80 DEG C, and final load capacity control is 1.0 × 109–2.0
×1010Cell/gram, it is prepared into silicate bacteria bacterium powder；
(3) 1-50 parts of silicate bacteria bacterium powder and 100 parts of calcium hydroxides are mixed with and obtain Binder Materials of the invention；
(4) by the 15-40 parts of Binder Materials and 10 parts of water mixed-formings, after standing 24-48 hours, it is put into pressurized carbon dioxide
In power kettle, 15-35 DEG C of temperature, relative humidity 30%-70% keeps 0.2MPa-0.6MPa pressure, CO2Gas concentration 20%-
100%, ventilation 60-300 minutes is kept, the Binder Materials completes consolidation.
Embodiment 1
(1) peptone 5g is weighed, beef leaching thing 3g, NaCl are 5g, MnSO4·H2O is 5mg, in 1000mL deionized waters
Middle dissolving, is configured to required culture medium solution, adjusts pH to take out to be cooled after being sterilized 25 minutes under 7,125 DEG C of high temperature, by glue
Matter bacillus is seeded in cooling culture medium solution, and shaken cultivation at 37 DEG C, frequency of oscillation is 170r/min, incubation time
24h；
(2) using graphite as wall material, silicate bacteria is spray-dried as core, and EAT control exists
150℃；At 80 DEG C, final load capacity is 5.0 × 10 for leaving air temp control9Cell/gram, it is prepared into silicate bacteria bacterium powder；
(3) 20 parts of silicate bacteria bacterium powders and 100 parts of calcium hydroxides are mixed with and obtain Binder Materials of the invention；
(4) by 25 parts of Binder Materials and 10 parts of water mixed-formings, after standing 48 hours, it is put into pressure carbon dioxide kettle
In, 20 DEG C of temperature, relative humidity 60% keeps 0.3MPa pressure, CO2Gas concentration 99%, keeps ventilation 180 minutes, the glue
Gel material completes consolidation, and its compression strength is 9.80MPa, is listed in table 1.
Embodiment 2
(1) peptone 5g is weighed, beef leaching thing 3g, NaCl are 5g, MnSO4·H2O is 5mg, in 1000mL deionized waters
Middle dissolving, is configured to required culture medium solution, adjusts pH to take out to be cooled after being sterilized 25 minutes under 7,125 DEG C of high temperature, by glue
Matter bacillus is seeded in cooling culture medium solution, and shaken cultivation at 37 DEG C, frequency of oscillation is 170r/min, incubation time
24h；
(2) using graphite as wall material, silicate bacteria is spray-dried as core, and EAT control exists
150℃；At 80 DEG C, final load capacity is 5.0 × 10 for leaving air temp control9Cell/gram, it is prepared into silicate bacteria bacterium powder；
(3) 20 parts of silicate bacteria bacterium powders and 100 parts of calcium hydroxides are mixed with and obtain Binder Materials of the invention；
(4) by 25 parts of Binder Materials and 10 parts of water mixed-formings, embodiment 1 is compared, preceding step method is completely the same,
Except that after standing 48 hours, not being positioned in pressure carbon dioxide kettle, and it is to continue with standing 180 minutes, then tests the speed
Its intensity, its compression strength is only 0.56MPa, is listed in table 1.
Embodiment 3
(1) 20 parts of gypsum and 100 parts of calcium hydroxides are mixed with Binder Materials, micro- life unsupported compared to embodiment 1
Thing；
(2) by 25 parts of Binder Materials and 10 parts of water mixed-formings, after standing 48 hours, it is put into pressure carbon dioxide kettle
In, 20 DEG C of temperature, relative humidity 60% keeps 0.3MPa pressure, CO2Gas concentration 99%, keeps ventilation 180 minutes, the glue
Gel material also completes consolidation, and its compression strength is 3.91MPa, is listed in table 1.
Embodiment 1, embodiment 2, the interpretation of result of embodiment 3：
Embodiment 2 is compared to embodiment 1, and all preparation methods are substantially completely consistent, and difference is that the sample of embodiment 2 stands
After 48 hours, further maintenance 3 hours are not put into pressure carbon dioxide kettle, its intensity only has 0.56MPa；And embodiment 1 is passed through
After pressure carbon dioxide is conserved 3 hours, gain in strength is 9.80MPa, and both compare susceptible of proof carbon dioxide can not only promote
Gypsum and calcium hydroxide crystallize to form intensity, and can form the calcium carbonate with gelling with mineralising, and compact structure promotes strong
The growth of degree.
Embodiment 3 is compared to embodiment 1, and carbon dioxide maintenance method is completely the same, difference be in the sample of embodiment 3 not
Load silicate bacteria, after pressure carbon dioxide is conserved 3 hours, it is 3.91MPa that its compression strength increases；And embodiment 1
In loaded microorganism, its compression strength further rises to 9.80MPa, it was confirmed that enhancing of the microorganism for its strength development
Effect, its microstructure is as shown in figure 1, the dense micro-structure of embodiment 1 been significantly enhanced.The analysis of causes includes：(1) it is micro-
Biology promotes carburizing reagent, accelerates heat evolution velocity；(2) there is the insolubility organic matter EPS of microorganism secretion gelling to make
With；(3) microbial cell serves fibre-reinforced effect wherein, as shown in Figure 2.Fig. 4 is the reality for having added silicate bacteria
Apply example 1 and be not added with the gelling hydrated product thermogravimetric analysis of the embodiment 3 of silicate bacteria, be will be obvious that in analysis result, it is real
Apply and be only found that the decomposition of calcium carbonate in example 1, and the mistake that calcium carbonate and calcium hydroxide are thermally decomposed twice is included in embodiment 3
Journey.
Embodiment 4
(1) peptone 10g is weighed, beef leaching thing 8g, NaCl are 10g, MnSO4·H2O is 10mg, in 1000mL go from
Dissolved in sub- water, be configured to required culture medium solution, regulation pH treats cold to be taken out after being sterilized 25 minutes under 7.5,125 DEG C of high temperature
But, colloid bacillus cereus are seeded in cooling culture medium solution, shaken cultivation at 30 DEG C, frequency of oscillation is 170r/min, training
Support time 48h；
(2) using graphite as wall material, silicate bacteria is spray-dried as core, and EAT control exists
130℃；At 70 DEG C, final load capacity is 2.0 × 10 for leaving air temp control10Cell/gram, it is prepared into silicate bacteria bacterium powder；
(3) 20 parts of silicate bacteria bacterium powders and 100 parts of calcium hydroxides are mixed with and obtain Binder Materials of the invention；
(4) by 25 parts of Binder Materials and 10 parts of water mixed-formings, after standing 48 hours, it is put into pressure carbon dioxide kettle
In, 20 DEG C of temperature, relative humidity 50% keeps 0.4MPa pressure, CO2Gas concentration 80%, keeps ventilation 120 minutes, the glue
Gel material completes consolidation, and its compression strength is 11.22MPa.
Compared to embodiment 1, embodiment adds load of microorganisms amount, by 5 × 109Cell/gram increase to 2.0 × 1010
Cell/gram, its compression strength is further lifted, and silicate bacteria effect strengthened for Binder Materials is obtained into one
Step is withdrawn deposit.
Embodiment 5
(1) peptone 10g is weighed, beef leaching thing 8g, NaCl are 10g, MnSO4·H2O is 10mg, in 1000mL go from
Dissolved in sub- water, be configured to required culture medium solution, regulation pH treats cold to be taken out after being sterilized 25 minutes under 7.5,125 DEG C of high temperature
But, colloid bacillus cereus are seeded in cooling culture medium solution, shaken cultivation at 30 DEG C, frequency of oscillation is 170r/min, training
Support time 48h；
(2) using graphite as wall material, silicate bacteria is spray-dried as core, and EAT control exists
130℃；At 70 DEG C, final load capacity is 2.0 × 10 for leaving air temp control10Cell/gram, it is prepared into silicate bacteria bacterium powder；
(3) 10 parts of silicate bacteria bacterium powders and 100 parts of calcium hydroxides are mixed with and obtain Binder Materials of the invention；
(4) by 25 parts of Binder Materials and 10 parts of water mixed-formings, after standing 48 hours, it is put into pressure carbon dioxide kettle
In, 20 DEG C of temperature, relative humidity 50% keeps 0.4MPa pressure, CO2Gas concentration 80%, keeps ventilation 120 minutes, the glue
Gel material completes consolidation, and its compression strength is 6.91MPa.
Compared to embodiment 4, the present embodiment have adjusted the ratio of silicate bacteria bacterium powder and calcium hydroxide, reduce silicic acid
The consumption of salt bacterium bacterium powder, its compression strength is only 6.91MPa, and 38% is reduced compared to embodiment 4, no matter bacterium powder and porous
Gypsum carrier has important facilitation for the aquation of this Binder Materials.
Embodiment 6
(1) peptone 10g is weighed, beef leaching thing 8g, NaCl are 10g, MnSO4·H2O is 10mg, in 1000mL go from
Dissolved in sub- water, be configured to required culture medium solution, regulation pH treats cold to be taken out after being sterilized 25 minutes under 7.5,125 DEG C of high temperature
But, colloid bacillus cereus are seeded in cooling culture medium solution, shaken cultivation at 30 DEG C, frequency of oscillation is 170r/min, training
Support time 48h；
(2) using porous calcium carbonate as wall material, silicate bacteria is spray-dried as core, EAT control
At 130 DEG C；At 70 DEG C, final load capacity is 2.0 × 10 for leaving air temp control10Cell/gram, it is prepared into silicate bacteria bacterium powder；
(3) 20 parts of silicate bacteria bacterium powders and 100 parts of calcium hydroxides are mixed with and obtain Binder Materials of the invention；
(4) 25 parts of Binder Materials and 10 parts of water mixed-formings after standing 48 hours, are put into pressure carbon dioxide by (4)
In kettle, 20 DEG C of temperature, relative humidity 50% keeps 0.4MPa pressure, CO2Gas concentration 80%, keeps ventilation 120 minutes, should
Binder Materials completes consolidation, and its compression strength is 7.19MPa.
Compared to embodiment 4, the present embodiment replaces graphite thin as wall material load silicate using porous calcium carbonate
Bacterium, its compression strength is 7.19MPa, reduces 36%, and mainly carrier calcium carbonate is inert carrier, is not involved in hydration reaction,
And gypsum also has gelling in itself.
The compression strength contrast of each embodiment test specimen of table 1
Claims (7)
1. a kind of novel gelled material with carbon sequestration capacity, it is characterised in that composition is calculated as with mass parts：1-50 parts of silicic acid
Salt bacterium bacterium powder, 100 parts of calcium hydroxides；Described silicate bacteria bacterium powder is using graphite or porous calcium carbonate as wall
Material, silicate bacteria obtains as core, spray drying, and silicate bacteria load capacity is 1.0 × 109 – 2.0×1010Cell/
Gram.
2. a kind of method of the novel gelled material with carbon sequestration capacity prepared described in claim 1, it is characterised in that step
For：
（1）Culture silicate bacteria, obtains bacterium solution：The culture medium solution culture that silicate bacteria is inoculated in after sterilizing is contained
There is the bacterium solution of silicate bacteria；
（2）Prepare silicate bacteria bacterium powder：Using graphite or porous calcium carbonate as wall material, silicate bacteria is used as core
Material, is spray-dried, and is prepared into silicate bacteria bacterium powder；
（3）Prepare Binder Materials：Silicate bacteria bacterium powder is well mixed with calcium hydroxide and obtains described Binder Materials.
3. the method for preparing the described novel gelled material with carbon sequestration capacity as claimed in claim 2, it is characterised in that
Described culture medium solution contains peptone 2.0-10.0g/L, and beef leaching thing 1.0-8.0g/L, NaCl are 2.0-10.0g/
L, MnSO4·H2O is 2.0-10.0mg/L.
4. the method for preparing the described novel gelled material with carbon sequestration capacity as claimed in claim 2, it is characterised in that
Described silicate bacteria bacterium solution cell concentration is 107~108Cell/mL.
5. the method for preparing the described novel gelled material with carbon sequestration capacity as claimed in claim 2, it is characterised in that
Described condition of culture is to control pH for 6 ~ 8, in shaken cultivation 24-48h at 25 ~ 40 DEG C.
6. the method for preparing the described novel gelled material with carbon sequestration capacity as claimed in claim 2, it is characterised in that
During described spray drying, EAT is controlled at 120~180 DEG C；Leaving air temp is controlled at 70~80 DEG C.
7. the application method of the novel gelled material with carbon sequestration capacity described in a kind of claim 1, it is characterised in that with matter
Gauge, the 15-40 parts of Binder Materials is mixed with 10 parts of water, after standing 24-48 hours, is put into pressure carbon dioxide kettle, temperature
15-35 DEG C of degree, relative humidity 30%-70% keeps 0.2MPa-0.6MPa pressure, CO2Gas concentration 20%-100%, keeps ventilation
60-300 minutes, Binder Materials completed consolidation.
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| CN108824419A (en) * | 2018-06-26 | 2018-11-16 | 温州大学 | The method of the vacuum pre-pressed joint biomineralization reinforcing High water cut soil body |
| CN111056782A (en) * | 2019-12-31 | 2020-04-24 | 中交路桥华南工程有限公司 | Microbial self-repairing method for tunnel lining concrete cracks |
| CN111087192A (en) * | 2019-12-31 | 2020-05-01 | 中交路桥华南工程有限公司 | Microbial repairing agent for marine concrete crack self-repair |
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| CN108487162A (en) * | 2018-06-26 | 2018-09-04 | 温州大学 | The method and spray appliance of airborne dust and sandy soil are consolidated using extremely beautiful nurse's bacteria microorganism microbial inoculum |
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| CN113561303A (en) * | 2021-08-26 | 2021-10-29 | 陈亮广 | CO (carbon monoxide)2Device and method for mineralizing and curing concrete building blocks |
| EP4260931A1 (en) * | 2022-04-12 | 2023-10-18 | Harmony Dynamics Sp. z o.o. | A method for purification of fume gases from carbon dioxide by carbonization of small-piece pressed products from mixtures containing lime and a device for its implementation |
| CN116553895A (en) * | 2023-04-10 | 2023-08-08 | 东南大学 | Magnesium slag carbon-fixing gelling material and preparation method thereof |
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