CN116694093A - High-viscosity modified asphalt for water-permeable pavement and preparation method thereof - Google Patents
High-viscosity modified asphalt for water-permeable pavement and preparation method thereof Download PDFInfo
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- CN116694093A CN116694093A CN202310698246.XA CN202310698246A CN116694093A CN 116694093 A CN116694093 A CN 116694093A CN 202310698246 A CN202310698246 A CN 202310698246A CN 116694093 A CN116694093 A CN 116694093A
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- 239000010426 asphalt Substances 0.000 title claims abstract description 149
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000011159 matrix material Substances 0.000 claims abstract description 54
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 claims abstract description 50
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 claims abstract description 50
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 46
- 239000002994 raw material Substances 0.000 claims abstract description 26
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 23
- 239000011593 sulfur Substances 0.000 claims abstract description 23
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 23
- 239000010692 aromatic oil Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000010008 shearing Methods 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 14
- 229920001911 maleic anhydride grafted polypropylene Polymers 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 150000003505 terpenes Chemical class 0.000 claims description 5
- 235000007586 terpenes Nutrition 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims 3
- 230000000052 comparative effect Effects 0.000 description 11
- 125000003118 aryl group Chemical group 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical group O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The application relates to the technical field of asphalt materials, in particular to high-viscosity modified asphalt for a water-permeable pavement and a preparation method thereof. The high-viscosity modified asphalt for the water-permeable pavement comprises the following raw materials in parts by weight: 100 parts of matrix asphalt, 5-15 parts of styrene-butadiene-styrene copolymer, 2-10 parts of light calcium carbonate, 0.5-2 parts of sulfur and 2-7 parts of aromatic oil. The high-viscosity modified asphalt for the water permeable pavement prepared by the application can keep higher viscosity for a long time in a high-temperature environment, and can meet the use requirement of the water permeable pavement.
Description
Technical Field
The application relates to the technical field of asphalt materials, in particular to high-viscosity modified asphalt for a water-permeable pavement and a preparation method thereof.
Background
In recent years, in order to relieve the heat island effect of cities, the problem of low utilization rate of urban precipitation resources in China is solved, and sponge cities are built. In the construction of sponge cities, the permeable pavement plays a positive role as an important construction facility.
Compared with the traditional pavement, the permeable pavement has the characteristics of rough surface layer, porous structure and outstanding overall water permeability of the pavement, can effectively improve the rainwater circulation of urban systems, relieve urban drainage pressure, can also improve urban building resistance, and is based on various excellent performances of the permeable pavement, and large and medium-sized cities in China gradually start to design and construct the permeable pavement.
Asphalt is a common binder for road surfaces, plays an important role in road performance of the road surfaces, and has a main damage form of rutting in a high-temperature environment in summer, and if the viscosity of the asphalt is too low at high temperature, the asphalt road surfaces can generate diseases such as oil bleeding, rutting and the like. Because the contact area of the binder with air and sunlight is increased due to the unique porous structure form of the permeable pavement, the aging speed of the binder along with time is faster than that of the dense grading material, so that the high-temperature performance requirement of the permeable pavement on the asphalt material is higher, the asphalt is modified by the polymer in the related technology to improve the viscosity of the asphalt, but the compatibility of the polymer and the asphalt is poor, the polymer is easy to separate from the asphalt, and the modified asphalt cannot keep higher viscosity for a long time.
Disclosure of Invention
The application provides high-viscosity modified asphalt for a water-permeable pavement and a preparation method thereof, aiming at solving the problem that the asphalt for the water-permeable pavement cannot keep higher viscosity for a long time.
In a first aspect, the application provides a high-viscosity modified asphalt for a water permeable pavement, which adopts the following technical scheme: the high-viscosity modified asphalt for the water-permeable pavement comprises the following raw materials in parts by weight: 100 parts of matrix asphalt, 5-15 parts of styrene-butadiene-styrene copolymer, 2-10 parts of light calcium carbonate, 0.5-2 parts of sulfur and 2-7 parts of aromatic oil.
By adopting the technical scheme, the styrene-butadiene-styrene copolymer, the light calcium carbonate, the sulfur and the aromatic oil are added into the matrix asphalt, and the styrene-butadiene-styrene copolymer is mixed with the matrix asphalt, so that the viscosity of the matrix asphalt can be obviously improved; aromatic oil can swell the styrene-butadiene-styrene copolymer on one hand and can improve aromatic components in the styrene-butadiene-styrene copolymer on the other hand, so that the compatibility of the styrene-butadiene-styrene copolymer and matrix asphalt is improved;
the sulfur can crosslink the molecular chain of the styrene-butadiene-styrene copolymer and the groups in the matrix asphalt to form a stable crosslinked network, so that the compatibility of the styrene-butadiene-styrene copolymer and the matrix asphalt is further improved; in addition, the light calcium carbonate can be adsorbed on the styrene-butadiene-styrene copolymer, so that the density of the styrene-butadiene-styrene copolymer is improved, the styrene-butadiene-styrene copolymer can be stably suspended in a matrix asphalt system, the storage stability of the modified asphalt is improved, and the modified asphalt can keep a high-viscosity state for a long time.
Preferably, the weight part of the styrene-butadiene-styrene copolymer is 10-15 parts.
Preferably, the weight part of the light calcium carbonate is 5-10 parts.
Preferably, the weight part of the sulfur is 1-2 parts.
Preferably, the raw material of the high-viscosity modified asphalt for water-permeable pavement further comprises 2-8 parts by weight of terpene resin.
By adopting the technical scheme, the addition of the terpene resin can further improve the viscosity of the modified asphalt, and the raw material of the high-viscosity modified asphalt for the water-permeable pavement further comprises 3-8 parts of maleic anhydride grafted polypropylene.
By adopting the technical scheme, the polypropylene main chain has better compatibility with the styrene-butadiene-styrene copolymer; the grafted maleic anhydride part has better compatibility with the matrix asphalt containing polar groups, and the maleic anhydride grafted polypropylene is used as a compatilizer, so that the compatibility of the styrene-butadiene-styrene copolymer and the matrix asphalt is further improved, and the modification effect of the modified asphalt, namely the viscosity of the modified asphalt is further improved.
Preferably, the weight part of the maleic anhydride grafted polypropylene is 5-8 parts.
In a second aspect, the application provides a preparation method of high-viscosity modified asphalt for a water-permeable pavement, which adopts the following technical scheme:
the preparation method of the high-viscosity modified asphalt for the water-permeable pavement comprises the following steps:
heating the matrix asphalt to 160-175 ℃, adding the rest raw materials, stirring and shearing to obtain the high-viscosity modified asphalt for the water-permeable pavement.
Preferably, the time in the shearing process is 40-70min.
Preferably, the time in the stirring process is 30-50min.
In summary, the application has the following beneficial effects:
1. according to the application, the styrene-butadiene-styrene copolymer, the light calcium carbonate, the sulfur and the aromatic oil are added into the matrix asphalt, and the styrene-butadiene-styrene copolymer is mixed with the matrix asphalt, so that the viscosity of the matrix asphalt can be obviously improved; aromatic oil can swell the styrene-butadiene-styrene copolymer on one hand and can improve aromatic components in the styrene-butadiene-styrene copolymer on the other hand, so that the compatibility of the styrene-butadiene-styrene copolymer and matrix asphalt is improved; the sulfur can crosslink the molecular chain of the styrene-butadiene-styrene copolymer and the groups in the matrix asphalt to form a stable crosslinked network, so that the compatibility of the styrene-butadiene-styrene copolymer and the matrix asphalt is further improved; in addition, the light calcium carbonate can be adsorbed on the styrene-butadiene-styrene copolymer, so that the density of the styrene-butadiene-styrene copolymer is improved, the styrene-butadiene-styrene copolymer can be stably suspended in a matrix asphalt system, the storage stability of the modified asphalt is improved, and the modified asphalt can keep a high-viscosity state for a long time.
2. In the application, the maleic anhydride grafted polypropylene is preferably added, and the compatibility of the polypropylene main chain and the styrene-butadiene-styrene copolymer is better; the grafted maleic anhydride part has better compatibility with the matrix asphalt containing polar groups, and the maleic anhydride grafted polypropylene is used as a compatilizer, so that the compatibility of the styrene-butadiene-styrene copolymer and the matrix asphalt is further improved, and the modification effect of the modified asphalt, namely the viscosity of the modified asphalt is further improved.
Detailed Description
The present application will be described in further detail with reference to examples.
The raw material specifications used in the following examples and comparative examples are detailed in Table 1 unless otherwise specified.
TABLE 1 raw materials specification information
Examples
Example 1
A high-viscosity modified asphalt for a water-permeable pavement comprises the following components in percentage by weight:
10kg of matrix asphalt, 0.5kg of styrene-butadiene-styrene copolymer, 0.2kg of light calcium carbonate, 0.05kg of sulfur and 0.2kg of aromatic oil.
The high-viscosity modified asphalt for the water-permeable pavement is prepared by the following steps:
heating the matrix asphalt to 160 ℃, adding the rest raw materials at 160 ℃, stirring for 30min, and shearing at the speed of 3500r/min for 40min at 180 ℃ to obtain the high-viscosity modified asphalt for the water-permeable pavement.
Example 2
A high-viscosity modified asphalt for a water-permeable pavement comprises the following components in percentage by weight:
10kg of matrix asphalt, 1.5kg of styrene-butadiene-styrene copolymer, 1kg of light calcium carbonate, 0.2kg of sulfur and 0.7kg of aromatic oil.
The high-viscosity modified asphalt for the water-permeable pavement is prepared by the following steps:
heating the matrix asphalt to 160 ℃, adding the rest raw materials at 160 ℃, stirring for 30min, and shearing at the speed of 3500r/min for 40min at 180 ℃ to obtain the high-viscosity modified asphalt for the water-permeable pavement.
Example 3
A high-viscosity modified asphalt for a water-permeable pavement comprises the following components in percentage by weight:
10kg of matrix asphalt, 1kg of styrene-butadiene-styrene copolymer, 0.5kg of light calcium carbonate, 0.1kg of sulfur and 0.5kg of aromatic oil.
The high-viscosity modified asphalt for the water-permeable pavement is prepared by the following steps:
heating the matrix asphalt to 160 ℃, adding the rest raw materials at 160 ℃, stirring for 30min, and shearing at the speed of 3500r/min for 40min at 180 ℃ to obtain the high-viscosity modified asphalt for the water-permeable pavement.
Example 4
A high-viscosity modified asphalt for a water-permeable pavement comprises the following components in percentage by weight:
10kg of matrix asphalt, 0.5kg of styrene-butadiene-styrene copolymer, 0.2kg of light calcium carbonate, 0.05kg of sulfur, 0.2kg of aromatic oil and 0.2kg of terpene resin.
The high-viscosity modified asphalt for the water-permeable pavement is prepared by the following steps:
heating the matrix asphalt to 160 ℃, adding the rest raw materials at 160 ℃, stirring for 30min, and shearing at the speed of 3500r/min for 40min at 180 ℃ to obtain the high-viscosity modified asphalt for the water-permeable pavement.
Example 5
A high-viscosity modified asphalt for a water-permeable pavement comprises the following components in percentage by weight:
10kg of matrix asphalt, 0.5kg of styrene-butadiene-styrene copolymer, 0.2kg of light calcium carbonate, 0.05kg of sulfur, 0.2kg of aromatic oil and 0.8kg of terpene resin.
The high-viscosity modified asphalt for the water-permeable pavement is prepared by the following steps:
heating the matrix asphalt to 160 ℃, adding the rest raw materials at 160 ℃, stirring for 30min, and shearing at the speed of 3500r/min for 40min at 180 ℃ to obtain the high-viscosity modified asphalt for the water-permeable pavement.
Example 6
A high-viscosity modified asphalt for a water-permeable pavement comprises the following components in percentage by weight:
10kg of matrix asphalt, 0.5kg of styrene-butadiene-styrene copolymer, 0.2kg of light calcium carbonate, 0.05kg of sulfur, 0.2kg of aromatic oil and 0.3kg of maleic anhydride grafted polypropylene.
The high-viscosity modified asphalt for the water-permeable pavement is prepared by the following steps:
heating the matrix asphalt to 160 ℃, adding the rest raw materials at 160 ℃, stirring for 30min, and shearing at the speed of 3500r/min for 40min at 180 ℃ to obtain the high-viscosity modified asphalt for the water-permeable pavement.
Example 7
A high-viscosity modified asphalt for a water-permeable pavement comprises the following components in percentage by weight:
10kg of matrix asphalt, 0.5kg of styrene-butadiene-styrene copolymer, 0.2kg of light calcium carbonate, 0.05kg of sulfur, 0.2kg of aromatic oil and 0.8kg of maleic anhydride grafted polypropylene.
The high-viscosity modified asphalt for the water-permeable pavement is prepared by the following steps:
heating the matrix asphalt to 160 ℃, adding the rest raw materials at 160 ℃, stirring for 30min, and shearing at the speed of 3500r/min for 40min at 180 ℃ to obtain the high-viscosity modified asphalt for the water-permeable pavement.
Example 8
A high-viscosity modified asphalt for a water-permeable pavement comprises the following components in percentage by weight:
10kg of matrix asphalt, 0.5kg of styrene-butadiene-styrene copolymer, 0.2kg of light calcium carbonate, 0.05kg of sulfur, 0.2kg of aromatic oil and 0.5kg of maleic anhydride grafted polypropylene.
The high-viscosity modified asphalt for the water-permeable pavement is prepared by the following steps:
heating the matrix asphalt to 160 ℃, adding the rest raw materials at 160 ℃, stirring for 30min, and shearing at the speed of 3500r/min for 40min at 180 ℃ to obtain the high-viscosity modified asphalt for the water-permeable pavement.
Example 9
A high-viscosity modified asphalt for a water-permeable pavement comprises the following components in percentage by weight:
10kg of matrix asphalt, 0.5kg of styrene-butadiene-styrene copolymer, 0.2kg of light calcium carbonate, 0.05kg of sulfur and 0.2kg of aromatic oil.
The high-viscosity modified asphalt for the water-permeable pavement is prepared by the following steps:
heating the matrix asphalt to 175 ℃, adding the rest raw materials at 175 ℃, stirring for 50min, and shearing at a speed of 3500r/min for 70min at 180 ℃ to obtain the high-viscosity modified asphalt for the water-permeable pavement.
Comparative example
Comparative example 1
A high-viscosity modified asphalt for a water-permeable pavement comprises the following components in percentage by weight:
10kg of matrix asphalt, 0.5kg of styrene-butadiene-styrene copolymer, 0.15kg of sulfur and 0.3kg of aromatic oil.
The high-viscosity modified asphalt for the water-permeable pavement is prepared by the following steps:
heating the matrix asphalt to 160 ℃, adding the rest raw materials at 160 ℃, stirring for 30min, and shearing at the speed of 3500r/min for 40min at 180 ℃ to obtain the high-viscosity modified asphalt for the water-permeable pavement.
Comparative example 2
A high-viscosity modified asphalt for a water-permeable pavement comprises the following components in percentage by weight:
10kg of matrix asphalt, 0.5kg of styrene-butadiene-styrene copolymer, 0.2kg of light calcium carbonate and 0.25kg of aromatic oil.
The high-viscosity modified asphalt for the water-permeable pavement is prepared by the following steps:
heating the matrix asphalt to 160 ℃, adding the rest raw materials at 160 ℃, stirring for 30min, and shearing at the speed of 3500r/min for 40min at 180 ℃ to obtain the high-viscosity modified asphalt for the water-permeable pavement.
Comparative example 3
A high-viscosity modified asphalt for a water-permeable pavement comprises the following components in percentage by weight:
10kg of matrix asphalt, 0.5kg of styrene-butadiene-styrene copolymer, 0.3kg of light calcium carbonate and 0.15kg of sulfur.
The high-viscosity modified asphalt for the water-permeable pavement is prepared by the following steps:
heating the matrix asphalt to 160 ℃, adding the rest raw materials at 160 ℃, stirring for 30min, and shearing at the speed of 3500r/min for 40min at 180 ℃ to obtain the high-viscosity modified asphalt for the water-permeable pavement.
Detection method
Referring to "Highway engineering asphalt and asphalt mixture test procedure" (JTG E20-2011), the high viscosity modified asphalt for water permeable pavement prepared in examples 1-9 and comparative examples 1-3 was tested for initial 60℃dynamic viscosity and 60℃dynamic viscosity after 10d in 80℃environment, and the specific test results are shown in Table 2 below:
TABLE 2 Performance test of high viscosity modified asphalt for Water permeable pavement
As can be seen from Table 2, the high-viscosity modified asphalt for water-permeable pavement prepared by the application has the initial dynamic viscosity at 60 ℃ and the dynamic viscosity at 60 ℃ after being placed for 10 days in an environment at 80 ℃ of more than 200000 Pa.s, and can maintain higher viscosity for a long time in a high-temperature environment.
As can be seen from the combination of example 1 and comparative examples 1 to 3 and Table 2, the high-viscosity modified asphalt for water permeable pavement prepared in example 1 has a much higher dynamic viscosity at 60℃than that of comparative examples 1 to 3, probably because: the raw materials of the high-viscosity modified asphalt for a water-permeable pavement of comparative example 1 do not contain light calcium carbonate, the raw materials of the high-viscosity modified asphalt for a water-permeable pavement of comparative example 2 do not contain sulfur, and the raw materials of the high-viscosity modified asphalt for a water-permeable pavement of comparative example 3 do not contain aromatic oil;
in example 1, the matrix asphalt contains light calcium carbonate, sulfur and aromatic hydrocarbon oil, and the styrene-butadiene-styrene copolymer is mixed with the matrix asphalt, so that the viscosity of the matrix asphalt can be remarkably improved; aromatic oil can swell the styrene-butadiene-styrene copolymer on one hand and can improve aromatic components in the styrene-butadiene-styrene copolymer on the other hand, so that the compatibility of the styrene-butadiene-styrene copolymer and matrix asphalt is improved;
the sulfur can crosslink the molecular chain of the styrene-butadiene-styrene copolymer and the groups in the matrix asphalt to form a stable crosslinked network, so that the compatibility of the styrene-butadiene-styrene copolymer and the matrix asphalt is further improved; in addition, the light calcium carbonate can be adsorbed on the styrene-butadiene-styrene copolymer, so that the density of the styrene-butadiene-styrene copolymer is improved, the styrene-butadiene-styrene copolymer can be stably suspended in a matrix asphalt system, the storage stability of the modified asphalt is improved, and the modified asphalt can keep a high-viscosity state for a long time.
The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.
Claims (10)
1. A high-viscosity modified asphalt for a water-permeable pavement is characterized in that: the material comprises the following raw materials in parts by weight: 100 parts of matrix asphalt, 5-15 parts of styrene-butadiene-styrene copolymer, 2-10 parts of light calcium carbonate, 0.5-2 parts of sulfur and 2-7 parts of aromatic oil.
2. A high viscosity modified asphalt for water permeable pavement according to claim 1, wherein: the weight part of the styrene-butadiene-styrene copolymer is 10-15 parts.
3. A high viscosity modified asphalt for water permeable pavement according to claim 1, wherein: the weight portion of the light calcium carbonate is 5-10 portions.
4. A high viscosity modified asphalt for water permeable pavement according to claim 1, wherein: the weight portion of the sulfur is 1-2 portions.
5. A high viscosity modified asphalt for water permeable pavement according to claim 1, wherein: the raw material of the high-viscosity modified asphalt for the water-permeable pavement further comprises 2-8 parts by weight of terpene resin.
6. A high viscosity modified asphalt for water permeable pavement according to claim 1, wherein: the raw material of the high-viscosity modified asphalt for the water-permeable pavement further comprises 3-8 parts of maleic anhydride grafted polypropylene.
7. A high viscosity modified asphalt for water permeable pavement according to claim 6, wherein: the weight part of the maleic anhydride grafted polypropylene is 5-8 parts.
8. A method for producing a high-viscosity modified asphalt for a water-permeable pavement according to any one of claims 1 to 7, characterized by: the method comprises the following steps:
heating the matrix asphalt to 160-175 ℃, adding the rest raw materials, stirring and shearing to obtain the high-viscosity modified asphalt for the water-permeable pavement.
9. The method for producing a high-viscosity modified asphalt for a water-permeable pavement according to claim 8, characterized in that: the time in the shearing procedure is 40-70min.
10. The method for producing a high-viscosity modified asphalt for a water-permeable pavement according to claim 8, characterized in that: the time in the stirring process is 30-50min.
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2023
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| AU4696885A (en) * | 1984-09-12 | 1986-03-20 | Esso Societe Anonyme Francaise | Bituminous compositions and preparation thereof |
| CN108410185A (en) * | 2017-12-25 | 2018-08-17 | 甘肃路桥建设集团养护科技有限责任公司 | A kind of high-viscosity asphalt and preparation method thereof |
| CN109294255A (en) * | 2018-09-30 | 2019-02-01 | 广东粤运佳富实业有限公司 | High-viscosity high-elasticity modified asphalt and preparation method thereof |
| CN109852085A (en) * | 2019-02-14 | 2019-06-07 | 河北长大交通科技有限公司 | A kind of high adhered modification pitch and preparation method thereof |
| CN110183862A (en) * | 2019-05-17 | 2019-08-30 | 江苏瑞沃建设集团有限公司 | A kind of high-modulus modified pitch and preparation method thereof |
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