CN106904997A - Electric field activated cement based devices and method - Google Patents
Electric field activated cement based devices and method Download PDFInfo
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- CN106904997A CN106904997A CN201710255385.XA CN201710255385A CN106904997A CN 106904997 A CN106904997 A CN 106904997A CN 201710255385 A CN201710255385 A CN 201710255385A CN 106904997 A CN106904997 A CN 106904997A
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- electric field
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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
- 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
- C04B40/0003—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability making use of electric or wave energy or particle radiation
- C04B40/0007—Electric, magnetic or electromagnetic fields
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- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention provides a kind of device for electric field activated cement sill, it includes：Agitated kettle, scale copper, plug, bearing, anti-kinking part, wire and variable-voltage power supply, and the method there is provided electric field activated cement sill is carried out using said apparatus.By the device and method on the basis of electromagnetic activation water technology, abandon using electromagnetic activation water mixing cement-based material, but by the direct Magnetic Cement mixture of electric field, relative to electromagnetic activation water technology before, the method operates more simple, low cost.
Description
Technical field
The invention belongs to technical field of concrete, and in particular to a kind of method and device of electric field activated cement sill.
Background technology
With the fast development of building trade, concrete has turned into one of most wide construction material of usage amount in the world, with
This simultaneously, construction requirement and performance improvement to concrete are also constantly reformed, and concrete material is in every field such as highway bridge
Beam, China Democratic National Construction Association etc. widely use, and then improve concrete strength, save material, and strengthen the service behaviour of concrete always by section
Scholar pays close attention to.
Concrete develops into today, and its composition structure has a very large change, and is no longer single water, cement, sand
Constituted with the part of stone four.Little by little, in order to improve early strength agent that the early strength of concrete adds, not change concrete slump
A series of chemical admixtures such as the water reducer that reduction water is used, also mineral admixture such as flyash silicon ash etc., have become
5th the 6th constituent of concrete, although the addition of additive and mineral admixture improves the lot of advantages of concrete
Can, but drawback is there is also in practice, additive is generally chemical reagent, and pollution environmental hazard health is produced aborning
Etc. significant problem, there is the discharge of different degrees of waste water, waste material and waste gas during this.If can not control to solve this
Pollution problem, or the additive of safety and environmental protection cannot be developed, then must pay attention to environmental protection with country realizes sustainable development
The policy of exhibition is runed counter to.
Last century mid-term, electromagnetic activation water is used for the existing correlative study of mixing cement concrete experiment, and experiment shows, electromagnetism
Activated water can make hydrated cementitious completely, increase concrete consistence, compact structure, improve concrete strength, and workability strengthens, together
When, the usage amount of cement is reduced, the contaminant capacity of production cement discharge is reduced, meet the requirement for building environmental type society,
With good economic and social benefit.Electromagnetic activation water mixing cement-based material is reducing cement consumption, reduces financial cost,
The aspects such as environmental protection have certain influence.
The application is abandoned using electromagnetic activation water mixing cement-based material on the basis of electromagnetic activation water technology, but
By the direct Magnetic Cement mixture of electric field, relative to electromagnetic activation water technology before, the method operates more simple, cost
It is low.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of method for directly applying electric field to cement mixture, so that
Electromagnetic activation water mixing cement-based material identical effect is obtained, and its operation is more simple, and cost is lower.
To overcome above-mentioned technical problem, the present invention provides a kind of device for electric field activated cement sill to be included：Stir
Mix pot, scale copper, plug, bearing, anti-kinking part, wire and variable-voltage power supply.
Wherein, scale copper is used as negative electrode, and scale copper is fixed on the circle of inwall one of agitated kettle with epoxy resin.
Wherein, plug is fixed on the stirring wing of agitated kettle, is used as anode.
Wherein, a bearing is installed on plug and stirring wing, wire is drawn by the guide rail being connected with bearing, by wire
The wire being finally connected on scale copper and plug is connected with variable-voltage power supply.
Wherein, the anti-kinking part includes four angle supports, double-layer plate and guide rail, and steel plate is bolted on corner
On support, in the space steel tank being inserted between double-layer plate for the guide rail of connecting wire, thus when stirring wing rotates
Wait, bearing drives guide rail to rotate, and in steel tank, then therefore wire will not wind guide rail card.
The present invention is also provided and carries out electric field activated cement base material using the above-mentioned device for electric field activated cement sill
The method of material, it includes：
The first step, wire is fixed；
Second step, adds cement matrix；
3rd step, it is electro-active；
4th step, surveys cement paste divergence；
5th step, repeats second step and the 3rd step, prepares mortar specimen, and test block is conserved into 3d, 7d, 28d respectively, surveys sand
The compression strength and rupture strength of slurry, and compared with blank sample.
Wherein, the 3rd step is further specially and opens variable-voltage power supply, and regulation voltage level obtains optimal electricity as needed
Pressure, electric field is applied to cement mixture, until stirring is completed；
Wherein, the 4th step is further specially the truncated cone circle that cement mortar is poured into rapidly measurement cement mortar divergence
Mould, and lift the divergence for surveying cement mortar；
Wherein, it is the physical chemistry by carrying out activated water under different conditions that optimum voltage is obtained in the 3rd step
Qualitative changeization experiment is obtained, and the experimental technique includes：
A is walked, and water is fitted into agitated kettle, is opened variable-voltage power supply and mixer and is stopped until stirring, in the meantime simultaneously,
PH meter is demarcated with pH buffer solutions to prepare to determine the pH of activated water；
B is walked, and takes quantitative activated water and light water pours into small beaker and surveys its pH value；Take quantitative activated water and light water
It is respectively charged into silica dish, surveys its ultraviolet absorptivity；Take quantitative activated water and light water surveys it in the thin copper of mica graphite respectively
Contact angle on piece；
C is walked, and adjusts different magnitudes of voltage, repeats said process；
D is walked, and experimental result is contrasted, and finds the maximum magnitude of voltage of activated water change in physical value, is obtained most
Good current field condition.
Beneficial technique effect
The present invention provide electric field activated cement sill apparatus and method by directly to cement mixture add one electricity
, activated cement material while electro-active water compared with traditional method for producing electro-active water in advance, reduces activated water
Be exposed the aerial time, it is ensured that the activity of water does not subtract, and reaches activation effect, and the present apparatus and method can also be by adjusting electricity
Pressure value produces the electric field of varying strength, designs multigroup contrast test.Device is simple to operate, easy to disassemble and low cost.
Brief description of the drawings
Fig. 1 is the schematic diagram of the device provided by the present invention for electric field activated cement sill.
Specific embodiment
Operation principle of the invention is as follows：Under electric field action, the active force between molecule is acted on water by electric field force
Change, in its natural state, water is not that individual molecule is present, but most of with the presence of micel form, association moisture
Submanifold is presented a dynamic equilibrium with single molecule level：
Energy required for this equilibrium process be by the thermal blooming of hydrone that offer, due to the warm-up movement of molecule,
Intermolecular hydrogen bond is constantly interrupted, and thus big molecular cluster becomes small molecule cluster or single hydrone.The present invention is to pass through
Apply external electric field offer energy to interrupt the hydrogen bond between hydrone, big Cluster Structures, strengthen the work of water in destruction hydrone
Property, while material is mixed cement, increased more hydrones contacts with cement granules, causes and is wrapped in cement granules
In water discharge, participate in reaction, improve hydrated cementitious degree, hydrated product increases, the mobility of cement mixture and
Working strength after hardening is greatly improved.The present invention applies electric field directly to cement mixture, and activated water is first produced in reduction
The aerial time is exposed, by adjusting different magnitudes of voltage, electric-field intensity is also different, finds out optimal parameter.
Device provided by the present invention for electric field activated cement sill includes：Agitated kettle, scale copper, plug, bearing,
Anti- kinking part, wire and variable-voltage power supply.
Scale copper is used as negative electrode, and scale copper is fixed on the circle of inwall one of agitated kettle with epoxy resin, plays insulation
Effect, agitated kettle inwall blank space sprays insulating material.
Plug is fixed on the stirring wing of agitated kettle, is used as anode.
Because stirring wing is to run at high speed in whipping process, the wire being connected on plug is simultaneously wound, in order to avoid this is existing
The generation of elephant, installs a bearing on plug and stirring wing, and wire is drawn by the guide rail being connected with bearing, and wire is last
The wire that will be connected on scale copper and plug is connected with variable-voltage power supply.
The anti-kinking part includes four angle supports, double-layer plate and guide rail, and steel plate is bolted on four angle supports
On, in the space steel tank being inserted between double-layer plate for the guide rail of connecting wire, thus when stirring wing rotates, axle
Hold drive guide rail to rotate, in steel tank, then therefore wire will not wind guide rail card.
The present invention is also provided and carries out electric field activated cement base material using the above-mentioned device for electric field activated cement sill
The method of material, it includes：
The first step, wire is fixed, and wire is screwed in steel tank, and is connected with variable-voltage power supply；
Second step, adds cement matrix, and the cement and water that will be weighed up are fitted into agitated kettle, obtains cement mixture；
3rd step, it is electro-active, variable-voltage power supply is opened, regulation voltage level obtains optimum voltage as needed, gives cement mix
Thing applies electric field, until stirring is completed；
4th step, surveys cement paste divergence, and cement mortar is poured into rapidly the truncated cone circle mould of measurement cement mortar divergence, and
Lift the divergence for surveying cement mortar；
5th step, repeats second step and the 3rd step prepares mortar specimen, and test block is conserved into 3d, 7d, 28d respectively, surveys sand
The compression strength and rupture strength of slurry, and compared with blank sample.
Whole electric field is maintained at room temperature, preferably 20 DEG C during activating.
Regulation voltage level produces the electric field of varying strength to find optimal electric pulse field parameter and to contrast in 3rd step
Experiment.
Water for mixing and stirring cement material is placed on and is stored at room temperature 48h.
Optimum voltage is obtained in 3rd step to be become by carrying out physicochemical properties of the activated water under different conditions
Change what experiment was obtained, the experimental technique includes：
A is walked, and water is fitted into agitated kettle, is opened variable-voltage power supply and mixer and is stopped until stirring, in the meantime simultaneously,
PH meter is demarcated with pH buffer solutions to prepare to determine the pH of activated water；
B is walked, and takes quantitative activated water and light water pours into small beaker and surveys its pH value；Take quantitative activated water and light water
It is respectively charged into silica dish, surveys its ultraviolet absorptivity；Take quantitative activated water and light water surveys it in the thin copper of mica graphite respectively
Contact angle on piece；
C is walked, and adjusts different magnitudes of voltage, repeats said process；
D is walked, and experimental result is contrasted, and finds the maximum magnitude of voltage of activated water change in physical value, is obtained most
Good current field condition.
Because activated water has memory effect, all contrast tests should be completed in 20 minutes, reduce experimental error.
Compared with other devices, the present invention provide device and method reduce first produce water transfer take during
The sequence distribution of hydrone is destroyed again, the secondary formation of hydrogen bond can be caused, and influences the activity of water, and then influence cement mixture
Mobility and hardening after working strength Expected Results.The present apparatus is to produce water and to mix and stir cement material be in same container
Inside carry out, reduce experimental error, it is ensured that activated water activity and its to the effect of mixture performance impact.
Describe embodiments of the present invention in detail using embodiment and accompanying drawing below, how skill is applied to the present invention whereby
Art means solve technical problem, and reach the implementation process of technique effect and can fully understand and implement according to this.
As shown in figure 1, including provided by the present invention for the device of electric field activated cement sill：Agitated kettle 1, scale copper
2nd, plug 3, bearing 4, anti-kinking part, wire 5 and variable-voltage power supply 6.Scale copper 2 is used as negative electrode, will be thin with epoxy resin
Copper sheet is fixed on the circle of inwall one of agitated kettle, plays insulating effect, agitated kettle inwall blank space sprays insulating material.Plug 3 is consolidated
It is scheduled on the stirring wing 7 of agitated kettle, is used as anode.One bearing 4 is installed on plug 3 and stirring wing 7, wire 5 passes through
The guide rail 8 being connected with bearing 4 is drawn, and the wire 5 that wire will be finally connected on scale copper and plug is connected with variable-voltage power supply 6.
The anti-kinking part includes four angle supports 9, double-layer plate 10 and guide rail 8, and steel plate 10 is fixed on four angle supports 9 by bolt 11
On, in the steel tank 12 being inserted between double-layer plate for the guide rail of connecting wire, thus when stirring wing 7 rotates, axle
Hold 4 drive guide rails 8 to rotate, in steel tank 12, then therefore wire 5 will not wind guide rail card.
The detailed process for carrying out electric field activated cement base material using the device is as follows：The first step, wire 5 is screwed
In steel tank 12, and it is connected with variable-voltage power supply 6；Second step, the cement and water that will be weighed up is fitted into agitated kettle 1, obtains cement
Mixture；3rd step, opens variable-voltage power supply 6, and regulation voltage level obtains optimum voltage as needed, and electricity is applied to cement mixture
, until stirring is completed；4th step, cement mortar is poured into rapidly truncated cone circle mould, and lift the divergence for surveying cement mortar；5th
Step, repeats second step and the 3rd step prepares mortar specimen, and test block is conserved into 3d, 7d, 28d respectively, surveys the compression strength of mortar
And rupture strength, and compared with blank sample.Whole electric field is maintained at 20 DEG C during activating.For mixing and stirring cement material
Water be placed on and be stored at room temperature 48h.
Obtaining optimum voltage is worth process as follows：A is walked, and water is fitted into agitated kettle, opens variable-voltage power supply and mixer
Until stirring stops, in the meantime simultaneously, demarcate pH meter with pH buffer solutions and prepare to determine the pH of activated water；B is walked, and is taken quantitative
Activated water and light water pour into small beaker and survey its pH value；Take quantitative activated water and light water is respectively charged into silica dish, survey it
Ultraviolet absorptivity；Take quantitative activated water and light water surveys its contact angle on mica graphite scale copper respectively；C is walked, and is adjusted
Different magnitudes of voltage are saved, said process is repeated；D is walked, and experimental result is contrasted, and finds activated water change in physical value most
Big magnitude of voltage, obtains optimal current field condition.
All above-mentioned this intellectual properties of primarily implementation, the not this new product of implementation of setting limitation other forms
And/or new method.Those skilled in the art will be using this important information, the above modification, to realize similar execution feelings
Condition.But, all modifications or transformation are based on the right that new product of the present invention belongs to reservation.
The above, is only presently preferred embodiments of the present invention, is not the limitation for making other forms to the present invention, is appointed
What those skilled in the art changed possibly also with the technology contents of the disclosure above or be modified as equivalent variations etc.
Effect embodiment.But it is every without departing from technical solution of the present invention content, according to technical spirit of the invention to above example institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection domain of technical solution of the present invention.
Claims (9)
1. a kind of device for electric field activated cement sill, it is characterised in that including：Agitated kettle, scale copper, plug, axle
Hold, anti-kinking part, wire and variable-voltage power supply.
2. the device of electric field activated cement sill is used for as claimed in claim 1, it is characterised in that：The scale copper is used as the moon
Pole is used, and scale copper is fixed on the circle of inwall one of agitated kettle with epoxy resin.
3. the device of electric field activated cement sill is used for as claimed in claim 1 or 2, it is characterised in that：The plug is fixed
On the stirring wing of agitated kettle, used as anode.
4. the device of electric field activated cement sill is used for as claimed in claim 1, it is characterised in that：In plug and agitated kettle
One bearing is installed, wire is drawn by the guide rail being connected with bearing, and wire will be finally connected on into scale copper and core on stirring wing
Wire on rod is connected with variable-voltage power supply.
5. the device of electric field activated cement sill is used for as described in Claims 1-4, it is characterised in that：The anti-kinking portion
Part includes four angle supports, double-layer plate and guide rail, and steel plate is bolted in four angle supports, for the guide rail of connecting wire
It is inserted in the steel tank between double-layer plate, thus when stirring wing rotates, bearing drives guide rail to rotate, and guide rail card is in steel
In board slot, then therefore wire will not wind.
6. electric field activated cement sill is carried out using the device for being used for electric field activated cement sill described in claim 1 to 5
Method, it is characterised in that including：
The first step, wire is fixed；
Second step, adds cement matrix；
3rd step, it is electro-active；
4th step, surveys cement paste divergence；
5th step, same process is repeated to prepare mortar specimen, and test block is conserved into 3d, 7d, 28d respectively, surveys the resistance to compression of mortar
Intensity and rupture strength, and compared with blank sample.
7. the method for electric field activated cement sill as claimed in claim 6, it is characterised in that：3rd step further has
To open variable-voltage power supply, regulation voltage level obtains optimum voltage to body as needed, and electric field is applied to cement mixture, until stirring
Complete；
8. the method for electric field activated cement sill as claimed in claims 6 or 7, it is characterised in that：It is characterized in that：It is described
4th step is further specially, and cement mortar is poured into rapidly truncated cone circle mould, and lifts the divergence for surveying cement mortar；
9. the method for the electric field activated cement sill as described in claim 6 to 8, it is characterised in that：It is characterized in that：It is described
It is to change what experiment was obtained by carrying out physicochemical properties of the activated water under different conditions that optimum voltage is obtained in 3rd step,
The experimental technique includes：
A is walked, and water is fitted into agitated kettle, opens variable-voltage power supply and mixer until stirring stopping, in the meantime simultaneously, uses pH
Buffer solution demarcates pH meter and prepares to determine the pH of activated water；
B is walked, and takes quantitative activated water and light water pours into small beaker and surveys its pH value；Take quantitative activated water and light water difference
It is fitted into silica dish, surveys its ultraviolet absorptivity；Take quantitative activated water and light water surveys it on mica graphite scale copper respectively
Contact angle；
C is walked, and adjusts different magnitudes of voltage, repeats said process；
D is walked, and experimental result is contrasted, and finds the maximum magnitude of voltage of activated water change in physical value, obtains optimal electricity
Field condition.
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| CN201710255385.XA CN106904997B (en) | 2017-04-18 | 2017-04-18 | Electric field activated cement-based device and method |
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| CN201710255385.XA CN106904997B (en) | 2017-04-18 | 2017-04-18 | Electric field activated cement-based device and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107856185A (en) * | 2017-11-06 | 2018-03-30 | 长安大学 | A kind of concrete central mix plant mixed and stirred based on high-frequency electric field activated water |
| CN109534749A (en) * | 2018-12-20 | 2019-03-29 | 郝鹏飞 | A kind of high-strength concrete and preparation method thereof that water consumption is low |
| CN112955416A (en) * | 2018-10-29 | 2021-06-11 | 根特大学 | Admixture for cementitious materials to affect rheological properties of cementitious materials |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09134721A (en) * | 1995-11-09 | 1997-05-20 | Toyota Autom Loom Works Ltd | Manufacture of active material paste for core metal type electrode |
| CN101142341A (en) * | 2005-03-16 | 2008-03-12 | 格瑞斯·格拉斯 | Treatment process for concrete |
| US20090308612A1 (en) * | 2006-09-25 | 2009-12-17 | Halliburton Energy Services, Inc. | Method for wellbore servicing to enhance the mechanical strength of cement using electrochemically activated water |
| CN104132878A (en) * | 2014-07-18 | 2014-11-05 | 青岛理工大学 | Cement-based material permeability test method and device under axial drawing load effect |
| CN104878935A (en) * | 2015-04-17 | 2015-09-02 | 张彭成 | Concrete construction technology capable of controlling setting time and special-purpose equipment of concrete construction technology |
| CN105587125A (en) * | 2015-06-29 | 2016-05-18 | 浙江大学 | Method for pouring concrete based on magnetic drive |
-
2017
- 2017-04-18 CN CN201710255385.XA patent/CN106904997B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09134721A (en) * | 1995-11-09 | 1997-05-20 | Toyota Autom Loom Works Ltd | Manufacture of active material paste for core metal type electrode |
| CN101142341A (en) * | 2005-03-16 | 2008-03-12 | 格瑞斯·格拉斯 | Treatment process for concrete |
| US20090308612A1 (en) * | 2006-09-25 | 2009-12-17 | Halliburton Energy Services, Inc. | Method for wellbore servicing to enhance the mechanical strength of cement using electrochemically activated water |
| CN104132878A (en) * | 2014-07-18 | 2014-11-05 | 青岛理工大学 | Cement-based material permeability test method and device under axial drawing load effect |
| CN104878935A (en) * | 2015-04-17 | 2015-09-02 | 张彭成 | Concrete construction technology capable of controlling setting time and special-purpose equipment of concrete construction technology |
| CN105587125A (en) * | 2015-06-29 | 2016-05-18 | 浙江大学 | Method for pouring concrete based on magnetic drive |
Non-Patent Citations (2)
| Title |
|---|
| 刘治文: "电场活化水拌和水泥混凝土性能的研究", 《万方数据》 * |
| 黄柳宾: "高频电场处理水泥浆改善其物理特性的实验研究", 《物理》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107856185A (en) * | 2017-11-06 | 2018-03-30 | 长安大学 | A kind of concrete central mix plant mixed and stirred based on high-frequency electric field activated water |
| CN112955416A (en) * | 2018-10-29 | 2021-06-11 | 根特大学 | Admixture for cementitious materials to affect rheological properties of cementitious materials |
| CN112955416B (en) * | 2018-10-29 | 2023-07-21 | 根特大学 | External admixture for cementitious materials to influence the rheological properties of the cementitious material |
| CN109534749A (en) * | 2018-12-20 | 2019-03-29 | 郝鹏飞 | A kind of high-strength concrete and preparation method thereof that water consumption is low |
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| CN106904997B (en) | 2022-09-06 |
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