CN115259756B - Magnetic focusing type pavement material for dynamic induction charging of automobile and preparation method - Google Patents
Magnetic focusing type pavement material for dynamic induction charging of automobile and preparation method Download PDFInfo
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- CN115259756B CN115259756B CN202210842034.XA CN202210842034A CN115259756B CN 115259756 B CN115259756 B CN 115259756B CN 202210842034 A CN202210842034 A CN 202210842034A CN 115259756 B CN115259756 B CN 115259756B
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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
- C04B28/006—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 mineral polymers, e.g. geopolymers of the Davidovits type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/12—Inductive energy transfer
-
- 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
- C04B2111/00422—Magnetic properties
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention relates to a magnetism-gathering pavement material for dynamic induction charging of an automobile and a preparation method thereof, comprising the following ingredients: the geopolymer slurry comprises alkaline excitant, water, fly ash with aluminosilicate activity composed of silicon oxygen tetrahedron and aluminum oxygen tetrahedron, granulated blast furnace slag, red mud, metakaolin, coconut ash and other alkali active materials, and the molar ratio of SiO2 to Al2O3 in the components of the geopolymer slurry is 3.0-5.6. The invention can effectively realize the convergence of magnetic fields, reduce magnetic leakage, further reduce energy loss in the induction charging process, solve the problem of lower charging efficiency of the traditional dynamic induction charging pavement system, and has the advantages of excellent electromagnetic performance, good mechanical property, low cost, energy conservation, environmental protection and the like.
Description
Technical Field
The invention relates to the technical field of inorganic composite materials, in particular to a magnetism-gathering pavement material for dynamic induction charging of an automobile and a preparation method thereof.
Background
According to statistics, the carbon emission in the traffic field of China accounts for 15% of the carbon emission of terminals of China in 2021, wherein the carbon emission of road traffic in the whole traffic industry accounts for 84%, and the carbon emission is an important stress point for emission reduction. In recent years, with the increasing importance of environmental protection and carbon emission, electric vehicles have been rapidly developed, and have become one of the important solutions for reducing carbon emission. However, due to the limitation of battery technology, the electric automobile has the problems of short endurance mileage, frequent charging times, overlong charging time and the like at the present stage, and the problems seriously restrict the development and popularization of the electric automobile.
To solve this problem, a dynamic induction charging road has been developed. The dynamic induction charging pavement system utilizes the basic principle of wireless induction charging, can realize real-time charging of the electric automobile, further lightens the dependence of the electric automobile industry on high-performance batteries, and promotes popularization of the electric automobile. Compared with the traditional pile type charging method, the dynamic wireless induction charging realizes the energy supplement of the battery in the running process of the vehicle, and has great advantages in reliability, safety, convenience and user friendliness. However, the trend of the magnetic field is difficult to control, and the magnetic field has serious magnetic leakage phenomenon in spatial distribution, namely, most of magnetic induction lines of the alternating magnetic field can leak into the space without passing through induction mediums in the induction surface layer, so that a great deal of magnetic energy is lost in the lower layer, energy waste is caused, the energy conversion efficiency is seriously influenced, and the charging effect is not ideal.
Disclosure of Invention
The invention aims to solve the technical problem of providing a magnetism-gathering pavement material for dynamic induction charging of an automobile and a preparation method thereof.
In order to solve the technical problems, the invention adopts the following technical scheme:
the magnetic gathering pavement material for dynamic induction charging of automobile includes homogeneously mixed ground polymer slurry and magnetizing agent, the ground polymer slurry includes homogeneously mixed composite alkali exciting agent, water and alkali active powder, the composite alkali exciting agent includes one or several of water, water glass, sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate and solid sodium silicate, and the alkali active powder is silica-alumina active alkali material.
As a further preferred aspect of the present invention, the alkali-activated powder is fly ash, granulated blast furnace slag, red mud, metakaolin or coconut dust having aluminous activity, which is composed of silicon oxygen tetrahedra and aluminum oxygen tetrahedra.
In a further preferred aspect of the present invention, the sodium silicate has a modulus of 0.8 to 4.0, a baume degree of 32.0 to 44.0, a sodium oxide content of 8wt% or more, and a silica content of 25wt% or more.
Further preferable in the present invention, the water-solid ratio of the geopolymer slurry is 0.3 to 0.5.
As a further preferred aspect of the present invention, siO in the alkali-activated powder 2 With Al 2 O 3 The molar ratio of (3.0-5.6).
As a further preferred aspect of the present invention, the mass of the magnetizing agent is 40% -60% of the total mass of the geopolymer slurry and the magnetizing agent.
Further preferred in the present invention, the magnetizing agent is iron powder having a particle size in the range of 15 to 150 μm.
As a further preferred aspect of the invention, the compound alkali-activator comprises water, sodium silicate and sodium hydroxide which are supplemented to be evaporated, the purity of the sodium hydroxide in the compound alkali-activator is more than or equal to 96%, and the dosage ratio of the sodium hydroxide to the sodium silicate is as follows: 3.5 to 6.8.
A preparation method of a magnetism-gathering pavement material for dynamic induction charging of an automobile comprises the following steps: step 1, preparing a clear mixed solution: weighing sodium hydroxide and sodium silicate, wherein the dosage proportion isAdding sodium hydroxide into water glass for multiple times, and continuously stirring until the sodium hydroxide is completely dissolved to obtain a clear mixed solution with the modulus of 0.8-3.2 and the concentration of 40wt% or more; step 2, preparing a composite alkali excitant: after standing and cooling the clarified mixed solution to room temperature, supplementing evaporated water, namely adding the supplemented evaporated water until the total mass of the clarified mixed solution is equal to the total mass of the weighed sodium hydroxide and water glass, and uniformly stirring to obtain the required compound alkali excitant; step 3, preparing geopolymer slurry: mixing the composite alkali excitant with alkali active powder material, adding water, and stirring uniformly to obtain geopolymer slurry; the water-solid ratio of the geopolymer slurry is 0.3-0.5 by weight; and SiO in the components contained in the geopolymer slurry 2 With Al 2 O 3 The molar ratio of (3) is 3.0-5.6; and 4, magnetizing: weighing magnetizing agent and adding the magnetizing agent into the geopolymer prepared in the step 3And (3) stirring the mixture slurry until the mixture is uniformly mixed to obtain a semi-finished product of the magnetic gathering type pavement material, wherein the mixing amount of the magnetizing agent is 40% -60% of the total mass of the geopolymer slurry and the magnetizing agent by weight.
As a further preferred aspect of the present invention, the method further comprises step 5: pouring the semi-finished product of the magnetic focusing pavement material into a mould, putting the semi-finished product into a standard curing box with the temperature of 25 ℃ and the humidity of 95%, curing for 28 days, and removing the mould to obtain the finished product of the magnetic focusing pavement material.
The invention has the following beneficial effects:
the magnetic focusing pavement material for the dynamic induction charging of the automobile has the saturation magnetization of 180-620 emu/kg, the resistivity of 6000-70000 omega-m and excellent electromagnetic performance, can effectively focus a magnetic field, reduce magnetic leakage, simultaneously reduce the loss of magnetic energy in a lower layer, effectively solve the problem of low energy transmission efficiency of the current dynamic induction charging pavement, and make a contribution to improving the readiness of the induction charging pavement technology; the 28d compressive strength is 25-50 MPa, the 28d flexural tensile strength is 5-10 MPa, and the mechanical properties are good, so that the road pavement structure can be well adapted to the original road structure environment, and the occurrence of road diseases is reduced. On the other hand, the invention uses the industrial waste materials such as the fly ash, the blast furnace slag and the like as the raw materials for producing the geopolymer slurry, thereby realizing the purpose of changing waste into valuables, having lower cost, effectively reducing the environmental pollution and having important significance for the building productivity and the environmental protection of China.
Drawings
FIG. 1 is a flow chart of the preparation of a magnetically focused pavement material for dynamic inductive charging of automobiles in accordance with the present invention.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings and specific preferred embodiments.
In the description of the present invention, it should be understood that the terms "left", "right", "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and "first", "second", etc. do not indicate the importance of the components, and thus are not to be construed as limiting the present invention. The specific dimensions adopted in the present embodiment are only for illustrating the technical solution, and do not limit the protection scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a magnetic focusing pavement material for dynamic inductive charging of an automobile, which is characterized by comprising the following ingredients: a geopolymer slurry and a magnetizing agent, wherein the components of the geopolymer slurry are preferably fly ash, granulated blast furnace slag, a composite alkali-activator and water, and SiO is contained in the components of the geopolymer slurry 2 With Al 2 O 3 The molar ratio of (3.0-5.6).
The embodiment of the invention also provides a preparation method of the magnetic gathering type pavement material for the dynamic induction charging of the automobile, which comprises the following steps:
(1) Preparing a geopolymer slurry: preparing a certain amount of compound alkali excitant, mixing with alkali active powder material, adding water, and stirring to uniformity to obtain geopolymer slurry. The water-solid ratio of the geopolymer slurry is 0.3-0.5 by weight; and SiO in the components contained in the geopolymer slurry 2 With Al 2 O 3 The molar ratio of (3.0-5.6).
(2) And (3) magnetization treatment: weighing a certain amount of magnetizing agent, adding the magnetizing agent into the prepared geopolymer slurry, and stirring until the mixture is uniformly mixed. The mixing amount of the magnetizing agent is 40% -60% of that of the magnetic focusing type pavement material by weight.
(3) Curing: pouring the mixture into a mould, putting the mould into a standard curing box with the temperature of 25 ℃ and the humidity of 95%, curing for 28 days, and removing the mould to obtain the finished product of the magnetic focusing pavement material.
The present invention will be described in further detail with reference to specific examples.
Example 1
Weighing the following raw materials in mass: according to the fly ash, granulated blast furnace slag, sodium hydroxide, water glass and iron powder, wherein the fly ash and the SiO in the blast furnace slag are as follows 2 With Al 2 O 3 Weighing materials with a molar ratio of 3.5, and weighing water according to a water-solid ratio of 0.3The mass of the geopolymer slurry and the iron powder is 1:1, weighing iron powder, and preparing the magnetic-gathering pavement material at the temperature of 25 ℃ according to the following preparation method. The magnetic focusing pavement material for the dynamic induction charging of the automobile has the saturation magnetization of 180-620 emu/kg, the resistivity of 6000-70000 omega-m, the 28-day compressive strength of 25-50 MPa and the 28-day flexural tensile strength of 5-10 MPa.
Referring to fig. 1, the preparation method is as follows:
s1, preparing geopolymer slurry:
s1.1, 193g of sodium hydroxide is weighed and dissolved in 1000g of water glass, after the water glass is fully stirred for 4min, the water glass is sealed, and after standing and cooling to room temperature, evaporated water is supplemented, so that the composite alkali excitant with the modulus of 1.2 and the concentration of 42.58wt% is prepared, wherein the water glass is water glass for building, the modulus of 0.8-4.0, the Baume degree of 32.0-44.0, and the sodium oxide content and the silicon dioxide content are respectively not lower than 8wt% and 25wt%.
S1.2, uniformly mixing fly ash and blast furnace slag to obtain composite powder, adding the prepared alkali-activated agent and the composite powder into a stirring pot, adding a proper amount of water, and fully stirring by adding water until uniform ground polymer slurry is obtained.
S2, magnetization treatment: 400g of the slurry is taken, 400g of iron powder with the grain diameter of 30 mu m is added in the same amount, and the mixture is vibrated for 15min to be fully mixed.
S3, maintenance: pouring the sample into a mould, curing the sample for 24 hours with the mould, demoulding, and curing the sample in a standard curing box with the temperature of 25 ℃ and the humidity of 95% for 28 days to obtain a finished product of the magnetic focusing pavement material.
The electromagnetic performance and mechanical performance test method of the prepared poly-magnetic pavement material comprises the following steps:
(1) Saturation magnetization: a cubic sample with dimensions of 2mm x 2mm was prepared and the saturation magnetization of the sample was measured using a LakeShore-7404 type vibrating magnetometer under the application of a 2T magnetic field.
(2) Resistivity: a cylindrical sample having a diameter of 100mm and a height of 50mm was prepared, copper sheets having a diameter of 100mm and a thickness of 1mm were attached to both bottom surfaces as parallel electrodes, and the resistivity of the sample was measured using a TongHui 2830 LCR tester.
(3) Compressive strength: the sample of the rectangular parallelepiped having a size of 40 mm*40 mm*40 mm was placed in a compressive strength tester and loaded at a rate of 1KN/s to measure the compressive strength of the sample.
(4) Flexural tensile strength: the sample was placed in a flexural strength tester and flexural tensile strength was measured at a rate of 1KN/s for a rectangular parallelepiped sample having a size of 40 mm by 160 mm.
The main performance indexes of the magnetic-accumulating pavement material for the dynamic induction charging of the automobile, which is prepared by the test method, are as follows: the saturation magnetization is 193.4emu/kg, the resistivity is 6300 Ω & m, the compressive strength is 27.8MPa, and the flexural strength is 9.6MPa.
Example 2
Weighing the following raw materials in mass: according to the fly ash, granulated blast furnace slag, sodium hydroxide, water glass and iron powder, wherein the fly ash and the SiO in the blast furnace slag are as follows 2 With Al 2 O 3 The materials are weighed according to the molar ratio of 3.8, water is weighed according to the water-solid ratio of 0.3, and the mass of the geopolymer slurry and the iron powder is 1:1, weighing iron powder, and preparing the magnetic-gathering pavement material at the temperature of 25 ℃ according to the following preparation method.
The main performance indexes of the foam concrete based on the silicate-aluminosilicate composite cementing material system prepared in the example are tested according to the test method in the example 1: the main performance indexes of the magnetic-gathering pavement material for the dynamic induction charging of the automobile are as follows: the saturation magnetization is 610.9emu/kg, the resistivity is 30000 Ω & m, the compressive strength is 48.3MPa, and the flexural strength is 9.8MPa.
Example 3
Weighing the following raw materials in mass: according to the fly ash, granulated blast furnace slag, sodium hydroxide, water glass and iron powder, wherein the fly ash and the SiO in the blast furnace slag are as follows 2 With Al 2 O 3 The materials are weighed according to the molar ratio of 4.0, water is weighed according to the water-solid ratio of 0.3, and the mass of the geopolymer slurry and the iron powder is 1:1, weighing iron powder, and preparing the magnetic-gathering pavement material at the temperature of 25 ℃ according to the following preparation method.
The main performance indexes of the foam concrete based on the silicate-aluminosilicate composite cementing material system prepared in the example are tested according to the test method in the example 1: the main performance indexes of the magnetic-gathering pavement material for the dynamic induction charging of the automobile are as follows: the saturation magnetization is 387.3emu/kg, the resistivity is 5490Ω.m, the compressive strength is 38.3MPa, and the flexural tensile strength is 14.2MPa.
Example 4
Weighing the following raw materials in mass: according to the fly ash, granulated blast furnace slag, sodium hydroxide, water glass and iron powder, wherein the fly ash and the SiO in the blast furnace slag are as follows 2 With Al 2 O 3 The materials are weighed according to the molar ratio of 4.2, water is weighed according to the water-solid ratio of 0.3, and the mass of the geopolymer slurry and the iron powder is 1:1, weighing iron powder, and preparing the magnetic-gathering pavement material at the temperature of 25 ℃ according to the following preparation method.
The main performance indexes of the foam concrete based on the silicate-aluminosilicate composite cementing material system prepared in the example are tested according to the test method in the example 1: the main performance indexes of the magnetic-gathering pavement material for the dynamic induction charging of the automobile are as follows: the saturation magnetization is 249.7emu/kg, the resistivity is 70000 Ω & m, the compressive strength is 32.1MPa, and the flexural strength is 14.6MPa.
The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the specific details of the above embodiments, and various equivalent changes can be made to the technical solution of the present invention within the scope of the technical concept of the present invention, and all the equivalent changes belong to the protection scope of the present invention.
Claims (6)
1. The utility model provides a gather magnetism formula road surface material for car dynamic induction charges which characterized in that: comprises a uniformly mixed geopolymer slurry and a magnetizing agent, wherein the geopolymer slurry comprises a uniformly mixed composite alkali excitant, water and alkali active powder, the composite alkali excitant comprises one or more of sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate and solid sodium silicate and water glass which are supplemented to be evaporated, the alkali active powder is fly ash, granulated blast furnace slag, red mud, metakaolin or coconut ash which are composed of silicon oxygen tetrahedra and aluminum oxygen tetrahedra and have silicon aluminum activity, the water-solid ratio of the geopolymer slurry is 0.3-0.5, the mass of the magnetizing agent is 40-60% of the total mass of the geopolymer slurry and the magnetizing agent, and the magnetizing agent is iron powder with the particle size range of 15-150 microns.
2. The concentrated magnetic pavement material for dynamic inductive charging of automobiles according to claim 1, wherein: the modulus of the water glass is 0.8-4.0, the Baume degree of the water glass is 32.0-44.0, the sodium oxide content of the water glass is more than or equal to 8wt%, and the silicon dioxide content of the water glass is more than or equal to 25wt%.
3. The concentrated magnetic pavement material for dynamic inductive charging of automobiles according to claim 1, wherein: siO in alkali active powder 2 With Al 2 O 3 The molar ratio of (3.0-5.6).
4. The concentrated magnetic pavement material for dynamic inductive charging of automobiles according to claim 1, wherein: the compound alkali excitant comprises water, sodium silicate and sodium hydroxide which are supplemented to be evaporated, the purity of the sodium hydroxide in the compound alkali excitant is more than or equal to 96%, and the dosage ratio of the sodium silicate to the sodium hydroxide is as follows: 3.5 to 6.8.
5. A method for preparing a magnetically focused pavement material for dynamic inductive charging of an automobile according to any one of claims 1-4, comprising the steps of:
step 1, preparing a clear mixed solution: weighing water glass and sodium hydroxide, wherein the dosage proportion is m Water glass ：m NaOH Adding sodium hydroxide into water glass for multiple times, and continuously stirring until the sodium hydroxide is completely dissolved to obtain a clear mixed solution with the modulus of 0.8-3.2 and the concentration of 40wt% or more;
step 2, preparing a composite alkali excitant: after standing and cooling the clarified mixed solution to room temperature, supplementing evaporated water, namely adding the supplemented evaporated water until the total mass of the clarified mixed solution is equal to the total mass of the weighed sodium hydroxide and water glass, and uniformly stirring to obtain the required compound alkali excitant;
step 3, preparing geopolymer slurry: mixing the composite alkali excitant with alkali active powder material, adding water, and stirring uniformly to obtain geopolymer slurry; the water-solid ratio of the geopolymer slurry is 0.3-0.5 by weight; and SiO in the components contained in the geopolymer slurry 2 With Al 2 O 3 The molar ratio of (3) is 3.0-5.6;
and 4, magnetizing: and (3) weighing the magnetizing agent, adding the magnetizing agent into the geopolymer slurry prepared in the step (3), and stirring the mixture until the mixture is uniformly mixed to prepare a semi-finished product of the magnetic-gathering pavement material, wherein the mixing amount of the magnetizing agent is 40% -60% of the total mass of the geopolymer slurry and the magnetizing agent by weight.
6. The method for preparing the magnetic focusing pavement material for the dynamic induction charging of the automobile according to claim 5, which is characterized by comprising the following steps: and 5, curing: pouring the semi-finished product of the magnetic focusing pavement material into a mould, putting the semi-finished product into a standard curing box with the temperature of 25 ℃ and the humidity of 95%, curing for 28 days, and removing the mould to obtain the finished product of the magnetic focusing pavement material.
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| CN103282325A (en) * | 2010-10-29 | 2013-09-04 | 约瑟夫·达维多维茨 | Geopolymer cement of the calcium ferro-luminosilicate polymer type and production process |
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