CN115140964A - Color asphalt mixture and preparation method thereof - Google Patents
Color asphalt mixture and preparation method thereof Download PDFInfo
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- CN115140964A CN115140964A CN202210887144.8A CN202210887144A CN115140964A CN 115140964 A CN115140964 A CN 115140964A CN 202210887144 A CN202210887144 A CN 202210887144A CN 115140964 A CN115140964 A CN 115140964A
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- 239000010426 asphalt Substances 0.000 title claims abstract description 100
- 239000000203 mixture Substances 0.000 title claims abstract description 54
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000004568 cement Substances 0.000 claims abstract description 22
- 238000002156 mixing Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000004575 stone Substances 0.000 claims abstract description 15
- 239000000049 pigment Substances 0.000 claims abstract description 14
- 239000003607 modifier Substances 0.000 claims abstract description 9
- 239000011259 mixed solution Substances 0.000 claims description 11
- 239000000243 solution Substances 0.000 claims description 9
- 239000001023 inorganic pigment Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000001055 blue pigment Substances 0.000 claims description 3
- 238000004945 emulsification Methods 0.000 claims description 3
- 239000001056 green pigment Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000001054 red pigment Substances 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000032683 aging Effects 0.000 abstract description 17
- 239000000428 dust Substances 0.000 abstract description 5
- 231100000614 poison Toxicity 0.000 abstract description 5
- 239000000779 smoke Substances 0.000 abstract description 5
- 239000003440 toxic substance Substances 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 10
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000003208 petroleum Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 229910021389 graphene Inorganic materials 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000013112 stability test Methods 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- -1 beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl Chemical group 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical class O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000013022 formulation composition Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/08—Diatomaceous earth
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/32—Carbides; Nitrides; Borides ; Silicides
- C04B14/322—Carbides
-
- 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
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
-
- 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
- C04B2111/80—Optical properties, e.g. transparency or reflexibility
- C04B2111/82—Coloured materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention belongs to the technical field of road engineering materials, and particularly relates to a modified colored asphalt mixture with improved aging resistance, high and low temperature performance and water stability and a preparation method thereof. The color asphalt mixture comprises 8-12% of color asphalt cement, 80-88% of graded broken stone, 4-8% of pigment, 1-2% of diatomite and 0.001-0.01% of MXene. By adding MXene and diatomite as modifiers, the color asphalt mixture can obviously improve the aging resistance of the color water-permeable asphalt mixture, improve the high-temperature stability and the anti-scattering capability of the color water-permeable asphalt mixture, and greatly improve the color life and the service life of a color pavement; according to the preparation method, the SBS colored cementing material is emulsified to obtain the SBS modified colored emulsified asphalt, the colored asphalt mixture is prepared in a cold mixing mode, and the emission problem of smoke, dust and toxic substances in the preparation process of the hot-mixed asphalt mixture can be remarkably improved.
Description
Technical Field
The invention belongs to the technical field of road engineering materials, and particularly relates to a modified colored asphalt mixture with improved aging resistance, high and low temperature performance and water stability and a preparation method thereof.
Background
With the rise of color walks in various regions, the color asphalt mixture meets the opportunity of large-scale application, the color asphalt mixture in the current market is prepared in a hot-mixing mode, a large amount of toxic gas and unpleasant smell are easily generated in the production process, and the adverse effects are caused to the surrounding environment of a mixing field and production life, so the production, popularization and application of the color asphalt mixture are seriously influenced by punishment and criticism of an environmental protection monitoring department. And because the asphalt cement of the colored asphalt mixture is prepared by blending various industrial chemicals such as aromatic components, resin and the like, the synthesized colored asphalt binder lacks macromolecular substances in petroleum asphalt, has simple components, has larger difference in overall performance compared with the petroleum asphalt, especially has poorer aging resistance, is easy to cause various oxidation reactions due to direct irradiation of sunlight and ultraviolet rays in the later use process, further causes serious aging of the asphalt cement, ensures that the color of the binder is from light to deep, is unfavorable for the color development of the pavement, influences the aesthetic property, reduces the bonding performance of the asphalt cement after aging, causes the pavement stone to be easy to generate diseases such as falling off and the like, and causes the pavement diseases to appear.
The patent CN103979834A discloses a modified color asphalt cement and a preparation method thereof, the modified color asphalt cement is prepared by adding organic modified montmorillonite into a modified color asphalt cement, compared with the modified color asphalt cement before modification, the modified color asphalt cement of the invention has the advantages of improved high-temperature stability and enhanced aging resistance, overcomes the defects of poor aging resistance and the like of the existing color asphalt cement, and obviously improves the service performance and the service life of a color asphalt pavement.
Patent CN 105295402A discloses an auxiliary material for enhancing high-temperature stability and aging resistance of a colored asphalt cement, which is prepared by mixing nano titanium dioxide and a coupling agent; however, the aging resistance of the color asphalt cement prepared by the two methods is still not particularly ideal, and the aging phenomenon of the pavement binder still exists seriously within a short time of the traffic on the pavement.
Patent 108659453A discloses a cold-resistant anti-aging color modified asphalt and a preparation method thereof, wherein an antioxidant and a weather-resistant agent are compounded to act together to improve the anti-aging performance of the asphalt, wherein the antioxidant is a compound of beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate and tris [2, 4-di-tert-butylphenyl ] phosphite.
Disclosure of Invention
On the one hand, the invention provides the modified colored asphalt mixture with improved aging resistance, high-temperature stability and fly-away resistance, which obviously improves the color life and service life of the colored pavement.
In order to achieve the purpose, the invention adopts the following technical scheme:
the color asphalt mixture comprises color asphalt cement, graded broken stone, pigment and a modifier, wherein the modifier mainly comprises MXene and diatomite.
In some technical schemes, the weight percentage of each component is as follows:
8 to 12 percent of color asphalt cement, 80 to 88 percent of graded broken stone, 4 to 8 percent of pigment, 1 to 2 percent of diatomite and 0.001 to 0.01 percent of MXene.
In some technical schemes, the MXene is a two-dimensional material, and the particle size range of the MXene is that D50 is smaller than 5 μm, and D90 is smaller than 10 μm.
In some technical schemes, the mass content of the silicon dioxide in the diatomite is 75% -90%.
In some technical schemes, the colored asphalt cement is SBS modified colored emulsified asphalt obtained after emulsification.
In some technical schemes, the solid content of the SBS modified colored emulsified asphalt is not less than 65%.
In some embodiments, the graded crushed stone is in the form of PAC-10 or PAC-13 grading.
In some embodiments, the pigment is an inorganic pigment selected from at least one of a red pigment, a blue pigment, and a green pigment.
On the other hand, the invention provides the preparation method of the colored asphalt mixture, and the cold-mixing preparation method can obviously improve the emission problem of smoke, dust and toxic substances in the preparation process of the hot-mixing asphalt mixture and create a more excellent use environment.
In order to achieve the purpose, the invention adopts the following technical scheme:
some technical solutions include the steps of:
mixing MXene solution and SBS modified color emulsified asphalt solution according to mass percentage to obtain mixed solution A;
mixing graded broken stone, pigment and diatomite according to mass percentage to obtain a mixed solution B;
and mixing the mixed solution A and the mixed solution B according to a proper proportion to prepare the color asphalt mixture.
In some technical schemes, the color asphalt mixture is prepared by adopting a cold mixing preparation mode.
The invention adopts the technical scheme and at least has the following beneficial effects:
1. by adding MXene and diatomite as modifiers, the aging resistance of the colored water-permeable asphalt mixture can be obviously improved, the high-temperature stability and the anti-scattering capability of the colored water-permeable asphalt mixture are improved, and the color life and the service life of a colored pavement are greatly prolonged;
MXene is a novel two-dimensional transition metal carbide or carbonitride, has a two-dimensional structure similar to graphene, and the doped MXene shows a plurality of excellent performances such as a small-size effect of crystal grains, an interface effect and the like due to a unique nano-layered structure and higher activity of the doped MXene and an ultra-fine special structure of the doped MXene, so that the integrity of a net structure formed by components such as SBS and the like in the color cementing material can be improved, the activity of SBS and petroleum resin materials is improved, and various performance indexes of the cementing material are optimized;
3. the diatomite is used as an active agent, so that the high-low temperature performance and the water stability of the asphalt mixture can be obviously improved;
4. the SBS colored cementing material is emulsified to obtain SBS modified colored emulsified asphalt, and the colored asphalt mixture is prepared in a cold mixing mode, so that the emission problem of smoke, dust and toxic substances in the preparation process of the hot-mixed asphalt mixture can be remarkably improved.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail in order to clearly understand the technical features, objects and effects of the present invention.
It is noted that the term "and/or" is intended to include any and all combinations of one or more of the associated listed items. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
In one embodiment of the present application, a color asphalt mixture is provided, which comprises a color asphalt cement, graded broken stones, a pigment and a modifier, wherein the modifier mainly comprises MXene and diatomite.
MXene is a novel two-dimensional transition metal carbide or carbonitride, has a two-dimensional structure similar to graphene, shows a plurality of excellent performances such as a small-size effect of crystal grains, an interface effect and the like due to a unique nano-layered structure and higher activity of the doped MXene and an ultra-fine special structure, can improve the integrity of a net structure formed by components such as SBS in a color cementing material, improves the activity of SBS and petroleum resin materials, and optimizes various performance indexes of the cementing material.
The diatomite is used as an active agent, and can obviously improve the high-low temperature performance and the water stability of the asphalt mixture.
In some embodiments, the color asphalt mixture comprises the following components in percentage by mass: 8 to 12 percent of color asphalt cement, 80 to 88 percent of graded broken stone, 4 to 8 percent of pigment, 1 to 2 percent of diatomite and 0.001 to 0.01 percent of MXene. The MXene mixing amount is determined by referring to the performance index of the color asphalt cement and considering the special effect and cost of the modifier nano material.
In some preferred embodiments, MXene has a particle size range of D50 less than 5 μm and D90 less than 10 μm; the mass content of the silicon dioxide in the diatomite is 75-90%.
In some preferred embodiments, the colored asphalt cement is SBS modified colored emulsified asphalt obtained after emulsification, so that a cold mixing preparation mode can be adopted, and the emission problems of smoke, dust and toxic substances in the preparation process of the hot-mixed asphalt mixture are obviously improved. Preferably, the solid content of the SBS modified colored emulsified asphalt is not less than 65% so as to ensure the paving quality.
In some preferred embodiments, the graded crushed stone is in the PAC-10 or PAC-13 graded form; the pigment is inorganic pigment selected from at least one of red pigment, blue pigment and green pigment.
In another embodiment of the present application, a method for preparing the color asphalt mixture is provided, which includes the steps of:
s1: at normal temperature, respectively weighing MXene solution and SBS modified colored emulsified asphalt solution according to mass percentage, mixing the MXene solution and SBS modified colored emulsified asphalt solution, and stirring for 1-2 min to be uniform to obtain mixed solution A;
s2: at normal temperature, respectively weighing graded broken stone, diatomite and pigment according to mass percentage, respectively adding the graded broken stone, the diatomite and the pigment into an asphalt mixing pot according to the mass ratio, and stirring for 3-4 min;
s3: and adding the mixed solution A into the asphalt mixing pot, and uniformly stirring for 3-6 min to obtain the cold-laid color permeable asphalt mixture.
The colored asphalt mixture is prepared and obtained by adopting a cold mixing mode in the embodiment, and the emission problems of smoke, dust and toxic substances in the preparation process of the hot-mixed asphalt mixture can be obviously improved.
The technical scheme of the patent is elaborated in detail and verified by the following examples and comparative examples.
TABLE 1 formulation composition of color asphalt mixture for experiment
TABLE 2 preparation of comparative examples and examples
Performance characterization
The cold-laid color water-permeable asphalt mixtures prepared in the comparative examples and the examples were subjected to a dynamic stability test and a flying resistance test, and the results are shown in table 3.
TABLE 3 dynamic stability test results of color permeable asphalt mixture
The SBS modified colored emulsified asphalt of the comparative example was subjected to an evaporation residue test, the MXene and modified SBS colored emulsified asphalt mixed solution of examples 1 to 3 was subjected to an evaporation residue test, and technical characterization was performed on the above evaporation residue, and the results thereof are shown in table 4.
TABLE 4 test results of the properties of the colored asphalt cement
The results in Table 3 show that the dynamic stability of the asphalt mixture of the comparative example is only 2500 times/mm because no diatomite and MXene are added, and the dynamic stability data of the asphalt mixture exceeds 3000 times/mm and reaches 6088 times/mm at most after the MXene and the MXene are added into the asphalt mixture of the comparative example for modification; in the aspect of the scattering loss rate, the comparative example is up to 16%, the standard requirement is not met, and compared with the comparative example, the anti-scattering performance of the embodiment is obviously improved, and the maximum improvement amplitude is up to 44%.
The results in Table 4 show that compared with the comparative example, the high-temperature performance of the color asphalt mixture is remarkably improved after the MXene and the diatomite are modified, and the softening points of the color asphalt mixture are all over 80 ℃; meanwhile, after modification, the ductility at 5 ℃ after aging exceeds 15cm, and the PI indexes are all greater than 0, which directly shows that the aging resistance of the modified color cementing material is obviously improved. The indexes all meet the technical requirements of the industry standard 'urban road color asphalt concrete pavement technical regulation' (CJJ/T218-2014) on special color asphalt. In contrast, the softening point index, the 5 ℃ ductility index and the penetration index of the comparative example are far from meeting the technical requirements of the specification that the softening point is 80 ℃ and the ductility after aging is more than or equal to 15cm, and the basic requirement that the penetration index of the polymer modified asphalt is not less than 0 in the technical Specification JTG F40-2004 for the construction of road asphalt pavement.
The table 3 and the table 4 jointly show that the MXene and diatomite modified color permeable asphalt mixture provided by the invention has good aging resistance, high temperature resistance and anti-flying performance, and the service life and the color durability of the color mixture can be greatly improved.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The color asphalt mixture is characterized by comprising a color asphalt cementing material, graded broken stones, a pigment and a modifier, wherein the modifier mainly comprises MXene and diatomite.
2. The colored asphalt mixture according to claim 1, wherein the mass percentages of the components are as follows:
8 to 12 percent of color asphalt cement, 80 to 88 percent of graded broken stone, 4 to 8 percent of pigment, 1 to 2 percent of diatomite and 0.001 to 0.01 percent of MXene.
3. The colored asphalt mixture according to claim 1,
the MXene is a two-dimensional material, and the particle size ranges of the MXene are that D50 is smaller than 5 mu m, and D90 is smaller than 10 mu m.
4. The colored asphalt mixture according to claim 1,
the mass content of the silicon dioxide in the diatomite is 75-90%.
5. The colored asphalt mixture according to claim 1,
the colored asphalt cement is SBS modified colored emulsified asphalt obtained after emulsification.
6. The colored asphalt mixture according to claim 5,
the solid content of the SBS modified colored emulsified asphalt is not lower than 65%.
7. The colored asphalt mixture according to claim 1,
the graded broken stone adopts a PAC-10 or PAC-13 graded form.
8. The colored asphalt mixture according to claim 1,
the pigment is an inorganic pigment, and the inorganic pigment is at least one selected from a red pigment, a blue pigment and a green pigment.
9. A method for preparing a coloured bituminous mixture according to any one of claims 1 to 8, characterized in that it comprises the steps of:
mixing MXene solution and SBS modified color emulsified asphalt solution according to mass percentage to obtain mixed solution A;
mixing graded broken stone, pigment and diatomite according to mass percentage to obtain a mixed solution B;
and mixing the mixed solution A and the mixed solution B according to a proper proportion to prepare the color asphalt mixture.
10. The production method according to claim 9,
the color asphalt mixture is prepared by adopting a cold mixing preparation method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210887144.8A CN115140964A (en) | 2022-07-26 | 2022-07-26 | Color asphalt mixture and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210887144.8A CN115140964A (en) | 2022-07-26 | 2022-07-26 | Color asphalt mixture and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6245850B1 (en) * | 1997-04-10 | 2001-06-12 | John R. Fields | Reflective asphalt emulsions and method |
| CN106431125A (en) * | 2016-08-15 | 2017-02-22 | 深圳市公路交通工程试验检测中心 | Cold mixing color asphalt mixture and preparation method |
| CN108342090A (en) * | 2017-12-20 | 2018-07-31 | 深圳市海绵城市科学研究院 | Diatom test asphalt modifier and its modified composite asphalt and preparation process |
| CN112280322A (en) * | 2020-11-03 | 2021-01-29 | 上海浦兴路桥建设工程有限公司 | MXene modified color asphalt binder and preparation method thereof |
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2022
- 2022-07-26 CN CN202210887144.8A patent/CN115140964A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6245850B1 (en) * | 1997-04-10 | 2001-06-12 | John R. Fields | Reflective asphalt emulsions and method |
| CN106431125A (en) * | 2016-08-15 | 2017-02-22 | 深圳市公路交通工程试验检测中心 | Cold mixing color asphalt mixture and preparation method |
| CN108342090A (en) * | 2017-12-20 | 2018-07-31 | 深圳市海绵城市科学研究院 | Diatom test asphalt modifier and its modified composite asphalt and preparation process |
| CN112280322A (en) * | 2020-11-03 | 2021-01-29 | 上海浦兴路桥建设工程有限公司 | MXene modified color asphalt binder and preparation method thereof |
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