CN116120755A - Direct-casting asphalt concrete high-viscosity high-elasticity modifier and preparation and use methods thereof - Google Patents
Direct-casting asphalt concrete high-viscosity high-elasticity modifier and preparation and use methods thereof Download PDFInfo
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- 239000011384 asphalt concrete Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 27
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- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229920000573 polyethylene Polymers 0.000 claims abstract description 17
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- 150000002978 peroxides Chemical class 0.000 claims abstract description 15
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- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 9
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- 238000002156 mixing Methods 0.000 claims description 8
- 239000004595 color masterbatch Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000011049 filling Methods 0.000 claims description 4
- 238000010907 mechanical stirring Methods 0.000 claims description 2
- 239000010426 asphalt Substances 0.000 abstract description 38
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000011161 development Methods 0.000 abstract description 4
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- 239000003795 chemical substances by application Substances 0.000 description 4
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- 239000005977 Ethylene Substances 0.000 description 2
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 2
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- APWFVHHGZWXBPA-TYYBGVCCSA-N (e)-but-2-enedioic acid;furan-2,5-dione Chemical compound O=C1OC(=O)C=C1.OC(=O)\C=C\C(O)=O APWFVHHGZWXBPA-TYYBGVCCSA-N 0.000 description 1
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- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical compound ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
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- 238000000071 blow moulding Methods 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N butenedioic acid Chemical compound OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
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- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
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- 239000000806 elastomer Substances 0.000 description 1
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- 239000000835 fiber Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000011087 fumaric acid Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001206 natural gum Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
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- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
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- 239000003381 stabilizer Substances 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 229940014800 succinic anhydride Drugs 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 238000010104 thermoplastic forming Methods 0.000 description 1
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- 238000004073 vulcanization Methods 0.000 description 1
- 239000012936 vulcanization activator Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
- C08L91/06—Waxes
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
The invention discloses a direct-casting asphalt concrete high-viscosity high-elasticity modifier which comprises the following components in parts by weight: 20-30 parts of thermoplastic rubber (SEBS), 40-60 parts of industrial white oil, 15-25 parts of polyethylene, 1-3 parts of stearic acid, 0.5-1.5 parts of carboxylic acid, 0.1-0.3 part of peroxide initiator and 0.5-1.5 parts of masterbatch, and simultaneously discloses a preparation method and a use method thereof. The invention belongs to the technical field of asphalt concrete modifiers, and particularly provides a direct-casting asphalt concrete high-viscosity high-elasticity modifier and a preparation and use method thereof, wherein the modifier has the characteristic of high viscoelasticity, on one hand, the additive can realize direct-casting addition, compared with the traditional SBS modifier, the working procedure colleagues for processing modified asphalt are saved, the development time is saved, and the production efficiency of asphalt mixture is improved; on the other hand, the high-viscosity high-elasticity modified asphalt can be prepared by adding the high-viscosity high-elasticity modified asphalt into the matrix asphalt by a wet method.
Description
Technical Field
The invention belongs to the technical field of asphalt concrete modifiers, and particularly relates to a direct-casting asphalt concrete high-viscosity high-elasticity modifier and a preparation and use method thereof.
Background
The development of highway traffic has increasingly demanded the traffic quality of road surfaces, and SBS modified asphalt gradually popularizes the highway construction field with the excellent use performance, and becomes a general traditional asphalt modified material. The prior SBS modified asphalt is subjected to blending production by a special factory, and the control process is complex in the transportation, storage and use processes, and the temperature is ensured, and the temperature is continuously stirred or a stabilizer is added so that the segregation is not generated. And the quality of the modified asphalt is difficult to control because the field storage tank is placed in a weather-missing environment, and the temperature and process control precision are difficult to ensure in the modification of the construction site. The SBS modified asphalt is obtained through accurate factory modification, and has high storage and use requirements on a construction site, so that the construction cost is inevitably increased.
Disclosure of Invention
Aiming at the situation, in order to make up the existing defects, the invention provides the direct-casting asphalt concrete high-viscosity high-elasticity modifier and the preparation and use methods thereof, wherein the modifier has the characteristic of high viscoelasticity, has the same use performance as SBS modified asphalt and asphalt mixture, can be also used for the mixture of an OGFC permeable pavement according to the actual use requirement, and realizes the characteristic of high viscoelasticity; on one hand, the additive can realize direct-casting addition, compared with the traditional SBS modifier, the working procedure colleague for processing modified asphalt is saved, the development time is saved, and the production efficiency of asphalt mixture is improved; on the other hand, the high-viscosity high-elasticity modified asphalt can be prepared by adding the high-viscosity high-elasticity modified asphalt into the matrix asphalt by a wet method.
The invention provides the following technical scheme: the invention provides a direct-casting asphalt concrete high-viscosity high-elasticity modifier, which comprises the following components in parts by weight: 20-30 parts of thermoplastic rubber (SEBS), 40-60 parts of industrial white oil, 15-25 parts of polyethylene, 1-3 parts of stearic acid, 0.5-1.5 parts of carboxylic acid, 0.1-0.3 part of peroxide initiator and 0.5-1.5 parts of color master batch.
Preferably, the direct-casting asphalt concrete high-viscosity high-elasticity modifier comprises the following components in parts by weight: 22-28 parts of thermoplastic rubber (SEBS), 48-55 parts of industrial white oil, 18-23 parts of polyethylene, 1.5-2.5 parts of stearic acid, 0.6-1.2 parts of carboxylic acid, 0.1-0.2 part of peroxide initiator and 0.8-1.2 parts of masterbatch.
Preferably, the direct-casting asphalt concrete high-viscosity high-elasticity modifier comprises the following components in parts by weight: 23-26 parts of thermoplastic rubber (SEBS), 50-54 parts of industrial white oil, 18-21 parts of polyethylene, 1.7-2.2 parts of stearic acid, 0.7-1.1 parts of carboxylic acid, 0.1-0.15 part of peroxide initiator and 0.9-1.1 part of masterbatch.
The thermoplastic rubber (SEBS) has excellent ageing resistance, plasticity and high elasticity, can be processed and used without vulcanization, can be reused, and is widely used for producing high-grade elastomers, plastic modification, adhesives, lubricating oil tackifier, filling materials of wires and cables, sheath materials and the like; SEBS has good weather resistance, heat resistance, compression set resistance and excellent mechanical properties.
The technical grade white oil is a highly refined product, colorless, odorless and nontoxic; the main application is as follows: the synthetic resin is used for plasticizing rubber of chemical fiber and synthetic fiber textile machinery, a precise instrument and synthetic resin.
Polyethylene (PE) is a thermoplastic resin obtained by polymerizing ethylene. Industrially, copolymers of ethylene with small amounts of alpha-olefins are also included. Polyethylene is odorless, nontoxic, wax-like in hand feeling, excellent in low temperature resistance (the lowest use temperature can reach-100 to-70 ℃), good in chemical stability, and resistant to most of acid and alkali attack (not resistant to acid with oxidation property). Is insoluble in common solvents at normal temperature, has small water absorption and excellent electrical insulation. It is suitable for various thermoplastic forming process, and is used mainly as film product, injection molding product, medical apparatus, medicine and food packing material, blow molding hollow product, etc.
Stearic acid is a widely used vulcanization activator in natural gums, synthetic rubbers, and latexes, and can also be used as a plasticizer and softener. The invention is used as a softener in the synthetic processing process of rubber and plastic, and can also be used as a stearate product rich in stearate.
Carboxylic acids, succinic anhydride or maleic anhydride may be used. The invention adopts maleic anhydride (fumaric acid) with a chemical formula of C4H4O4. Good chemical corrosion resistance and heat resistance, and is a good adhesive.
The peroxide initiator is a compound containing a peroxy group. It can be seen as a derivative of hydrogen peroxide, which contains peroxygen ions in the molecule. Organic peroxides are used in view of the product characteristics: di-tert-butyl peroxide, peracetic acid, benzoyl peroxide, dicumyl peroxide. The invention adopts dicumyl peroxide (DCP), which is also called vulcanizing agent and dicumyl peroxide, and is a strong oxidizing agent. Can be used as initiator for monomer polymerization, vulcanizing agent, cross-linking agent, curing agent, flame retardant additive, etc. The catalyst is mainly used as vulcanizing agent of natural rubber and synthetic rubber, initiator of polymerization reaction, and can also be used as crosslinking agent of polyethylene resin. Ethylene-vinyl acetate copolymer (EVA) foam materials can be formed into fine and uniform cells, and the heat resistance and weather resistance of the product are improved.
The color master batch is a conventional dyeing auxiliary agent in the plastic chemical industry.
Meanwhile, the invention also provides a preparation method of the direct-casting asphalt concrete high-viscosity high-elasticity modifier, which specifically comprises the following steps:
(1) Thermoplastic rubber (SEBS) and technical grade white oil are mixed according to the mass ratio of 1:2, uniformly mixing by mechanical stirring under the airtight normal temperature condition;
(2) Blending the mixture of the thermoplastic rubber (SEBS) after oil filling and the technical grade white oil with polyethylene, stearic acid, carboxylic acid, peroxide initiator and masterbatch according to a proportion;
(3) Extruding the mixture obtained in the step (2) by adopting a double-screw or triple-screw extruder.
Further, the temperature of the discharge port of the twin-screw or triple-screw extruder is 180 ℃.
Further, the twin-screw or triple-screw extruder is provided with nine heating zones, and the temperatures of the nine heating zones are specifically set as follows:
zone 1: 150 ℃; zone 2: 150 ℃; zone 3: 155 ℃; zone 4: 155 ℃; zone 5: 160 ℃; region 6: 160 ℃;7 region: 165 ℃;8 region: 170 ℃; zone 9: 170 ℃.
In addition, the invention also provides a use method of the direct-casting asphalt concrete high-viscosity high-elasticity modifier, which is added into asphalt concrete in a mass percentage of 0.3-0.5%.
Preferably, the method for using the direct-casting asphalt concrete high-viscosity high-elasticity modifier comprises the step of adding the direct-casting asphalt concrete high-viscosity high-elasticity modifier into asphalt concrete in a mass percentage of 0.4%.
The beneficial effects obtained by the invention by adopting the structure are as follows: the invention develops a direct-casting asphalt concrete high-viscosity high-elasticity modifier and a preparation and use method thereof aiming at the practical road use characteristics, and has the following advantages:
(1) The direct-casting asphalt modifier can realize that the modifier is directly cast into mixing equipment in the mixing process of the mixture to produce qualified modified asphalt mixture, and the performance of the direct-casting asphalt modifier is the same as that of the traditional modified asphalt mixture through a comparison test, and the partial index of the direct-casting asphalt modifier is slightly higher; the dynamic stability, marshall stability, freeze thawing splitting, low-temperature bending and other test indexes are equal to those of the traditional modified asphalt mixture, and are in good ranges, and compared with the traditional SBS modified asphalt mixture, the Kentaburg scattering loss amount test is improved to 6.5% by 13%;
(2) The invention has the advantages that the direct casting production mode is adopted, the production process of the asphalt mixture is not changed, the performance of the mixture is consistent with that of the SBS modified asphalt mixture, the production process of the modified asphalt mixture is simplified, the use method is simple, convenient and quick, the development stabilizing time of the modified asphalt is saved, the processing and production process of the modified asphalt mixture is greatly simplified, the manpower and material resources of production are saved, and the requirements on links such as storage, transportation and the like are lower; the production cost of the mixture can be saved by 20% by estimation, and the production efficiency is improved by 50%. In addition, the invention can also be mixed into asphalt by a wet method to realize the purpose of producing finished high-viscosity high-elasticity modified asphalt.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The direct-casting asphalt concrete high-viscosity high-elasticity modifier in the embodiment comprises the following components in percentage by mass: thermoplastic rubber (SEBS) 20%, technical grade white oil 40%, polyethylene 15%, stearic acid 1%, carboxylic acid 0.5%, peroxide initiator 0.1%, masterbatch 0.5%.
The preparation method of the direct-casting asphalt concrete high-viscosity high-elasticity modifier specifically comprises the following steps:
(1) Removing impurities from thermoplastic rubber (SEBS), industrial-grade white oil 40%, polyethylene, stearic acid, carboxylic acid, peroxide initiator and masterbatch according to the mass percentage, cleaning and drying;
(2) Under the airtight normal temperature condition, thermoplastic rubber (SEBS) and industrial white oil are mechanically mixed and uniformly mixed;
(3) Blending the mixture of the thermoplastic rubber (SEBS) after oil filling and the technical grade white oil with polyethylene, stearic acid, carboxylic acid, peroxide initiator and masterbatch according to a proportion;
(4) Extruding the mixture obtained in the step (2) by adopting a double-screw or triple-screw extruder, wherein the temperature of a discharge hole of the double-screw or triple-screw extruder is 180 ℃.
Wherein, twin-screw or three screw extruder possesses nine zone of heating, and nine zone of heating temperatures set up respectively at: zone 1: 150 ℃; zone 2: 150 ℃; zone 3: 155 ℃; zone 4: 155 ℃; zone 5: 160 ℃; region 6: 160 ℃;7 region: 165 ℃;8 region: 170 ℃; zone 9: 170 ℃.
Example two
The direct-casting asphalt concrete high-viscosity high-elasticity modifier in the embodiment comprises the following components in percentage by mass: 25% of thermoplastic rubber (SEBS), 50% of industrial white oil, 20% of polyethylene, 2% of stearic acid, 1% of carboxylic acid, 0.2% of peroxide initiator and 1% of color master batch.
The preparation method is the same as in example one.
Example III
The direct-casting asphalt concrete high-viscosity high-elasticity modifier in the embodiment comprises the following components in percentage by mass: 30% of thermoplastic rubber (SEBS), 60% of industrial white oil, 25% of polyethylene, 3% of stearic acid, 1.5% of carboxylic acid, 0.3% of peroxide initiator and 1.5% of color master batch.
The preparation method is the same as in example one.
Test examples
The high-viscosity and high-elasticity modifier for the direct-casting asphalt concrete prepared in the first embodiment is added into the asphalt mixture of the AC20 type, the ATB25 type and the AC25 type respectively according to the mass percent of the asphalt mixture of 0.4%, and after the asphalt mixture is uniformly mixed, the obtained asphalt concrete is detected, and the results are shown in tables 1-3.
Table 1 direct casting type AC20 type grading of high-viscosity high-elasticity modified asphalt mixture
Table 2 direct casting type high viscosity high elastic modified asphalt mixture ATB25 type grading
Table 3 AC25 type grading of direct-casting high-viscosity high-elasticity modified asphalt mixture
Table 4 modified asphalt index
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The direct-casting asphalt concrete high-viscosity high-elasticity modifier is characterized by comprising the following components in parts by weight: 20-30 parts of thermoplastic rubber, 40-60 parts of industrial white oil, 15-25 parts of polyethylene, 1-3 parts of stearic acid, 0.5-1.5 parts of carboxylic acid, 0.1-0.3 part of peroxide initiator and 0.5-1.5 parts of masterbatch.
2. The direct-casting asphalt concrete high-viscosity high-elasticity modifier according to claim 1, which is characterized by comprising the following components in parts by weight: 22-28 parts of thermoplastic rubber, 48-55 parts of industrial white oil, 18-23 parts of polyethylene, 1.5-2.5 parts of stearic acid, 0.6-1.2 parts of carboxylic acid, 0.1-0.2 part of peroxide initiator and 0.8-1.2 parts of color master batch.
3. The direct-casting asphalt concrete high-viscosity high-elasticity modifier according to claim 1, which is characterized by comprising the following components in parts by weight: 23-26 parts of thermoplastic rubber, 50-54 parts of industrial white oil, 18-21 parts of polyethylene, 1.7-2.2 parts of stearic acid, 0.7-1.1 parts of carboxylic acid, 0.1-0.15 part of peroxide initiator and 0.9-1.1 part of color master batch.
4. The method for preparing the direct-casting asphalt concrete high-viscosity high-elasticity modifier according to any one of claims 1 to 3, which is characterized by comprising the following steps:
(1) Thermoplastic rubber and technical grade white oil are mixed according to the mass ratio of 1:2, uniformly mixing by mechanical stirring under the airtight normal temperature condition;
(2) Blending the mixture of the thermoplastic rubber and the technical grade white oil after oil filling with polyethylene, stearic acid, carboxylic acid, peroxide initiator and masterbatch according to a proportion;
(3) Extruding the mixture obtained in the step (2) by adopting a double-screw or triple-screw extruder.
5. The method for preparing the direct casting asphalt concrete high-viscosity high-elasticity modifier according to claim 4, wherein the temperature of a discharge hole of the double-screw extruder or the triple-screw extruder is 180 ℃.
6. The method for preparing the direct-casting asphalt concrete high-viscosity high-elasticity modifier according to claim 4, wherein the twin-screw or triple-screw extruder is provided with nine heating zones, and the temperatures of the nine heating zones are specifically set as follows:
zone 1: 150 ℃; zone 2: 150 ℃; zone 3: 155 ℃; zone 4: 155 ℃; zone 5: 160 ℃; region 6: 160 ℃;7 region: 165 ℃;8 region: 170 ℃; zone 9: 170 ℃.
7. The method of using a direct-casting asphalt concrete high-viscosity high-elasticity modifier according to any one of claims 1 to 6, wherein the direct-casting asphalt concrete high-viscosity high-elasticity modifier is added into asphalt concrete in a mass percentage of 0.3 to 0.5%.
8. The method for using the direct-casting asphalt concrete high-viscosity high-elasticity modifier, according to claim 7, wherein the direct-casting asphalt concrete high-viscosity high-elasticity modifier is added into asphalt concrete in a mass percentage of 0.4%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Citations (6)
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|---|---|---|---|---|
| WO2004076553A1 (en) * | 2003-02-25 | 2004-09-10 | Toda Kogyo Corporation | Resin composition for pavement |
| WO2008049312A1 (en) * | 2006-10-20 | 2008-05-02 | Shenzhen Oceanpower Industrial Co., Ltd. | An asphalt modifier for improving rutting resistance of pavements |
| CN103980650A (en) * | 2014-05-05 | 2014-08-13 | 重庆中加沥青技术服务有限公司 | Direct vat set modifier of cast asphalt mixture and preparation method |
| CN110922768A (en) * | 2018-09-20 | 2020-03-27 | 中国石油化工股份有限公司 | Direct-throwing type high-viscosity asphalt modifier and preparation method thereof |
| CN114806193A (en) * | 2022-03-16 | 2022-07-29 | 长安大学 | Direct-vat-set high-viscosity asphalt modifier and preparation method and application thereof |
| CN114921011A (en) * | 2022-04-16 | 2022-08-19 | 辽宁新远复合材料有限公司 | High-performance asphalt concrete anti-rutting agent and preparation and use method thereof |
-
2023
- 2023-02-22 CN CN202310151593.0A patent/CN116120755A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004076553A1 (en) * | 2003-02-25 | 2004-09-10 | Toda Kogyo Corporation | Resin composition for pavement |
| WO2008049312A1 (en) * | 2006-10-20 | 2008-05-02 | Shenzhen Oceanpower Industrial Co., Ltd. | An asphalt modifier for improving rutting resistance of pavements |
| CN103980650A (en) * | 2014-05-05 | 2014-08-13 | 重庆中加沥青技术服务有限公司 | Direct vat set modifier of cast asphalt mixture and preparation method |
| CN110922768A (en) * | 2018-09-20 | 2020-03-27 | 中国石油化工股份有限公司 | Direct-throwing type high-viscosity asphalt modifier and preparation method thereof |
| CN114806193A (en) * | 2022-03-16 | 2022-07-29 | 长安大学 | Direct-vat-set high-viscosity asphalt modifier and preparation method and application thereof |
| CN114921011A (en) * | 2022-04-16 | 2022-08-19 | 辽宁新远复合材料有限公司 | High-performance asphalt concrete anti-rutting agent and preparation and use method thereof |
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