CN116589221A - Modified high-modulus agent for asphalt and preparation method and application thereof - Google Patents
Modified high-modulus agent for asphalt and preparation method and application thereof Download PDFInfo
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- CN116589221A CN116589221A CN202310555538.8A CN202310555538A CN116589221A CN 116589221 A CN116589221 A CN 116589221A CN 202310555538 A CN202310555538 A CN 202310555538A CN 116589221 A CN116589221 A CN 116589221A
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- parts
- asphalt
- high modulus
- modified high
- modified
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- 239000010426 asphalt Substances 0.000 title claims abstract description 69
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 19
- ZTHYODDOHIVTJV-UHFFFAOYSA-N Propyl gallate Chemical compound CCCOC(=O)C1=CC(O)=C(O)C(O)=C1 ZTHYODDOHIVTJV-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229920003023 plastic Polymers 0.000 claims abstract description 14
- 239000004033 plastic Substances 0.000 claims abstract description 14
- 239000002245 particle Substances 0.000 claims abstract description 13
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 12
- 239000004698 Polyethylene Substances 0.000 claims abstract description 11
- HIHIPCDUFKZOSL-UHFFFAOYSA-N ethenyl(methyl)silicon Chemical compound C[Si]C=C HIHIPCDUFKZOSL-UHFFFAOYSA-N 0.000 claims abstract description 11
- -1 polyethylene Polymers 0.000 claims abstract description 11
- 229920000573 polyethylene Polymers 0.000 claims abstract description 11
- 239000004945 silicone rubber Substances 0.000 claims abstract description 11
- 229920003048 styrene butadiene rubber Polymers 0.000 claims abstract description 10
- 239000004433 Thermoplastic polyurethane Substances 0.000 claims abstract description 9
- 229920001971 elastomer Polymers 0.000 claims abstract description 9
- 239000003208 petroleum Substances 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 9
- 229920005989 resin Polymers 0.000 claims abstract description 9
- 239000005060 rubber Substances 0.000 claims abstract description 9
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims abstract description 9
- 239000004359 castor oil Substances 0.000 claims abstract description 8
- 235000019438 castor oil Nutrition 0.000 claims abstract description 8
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims abstract description 8
- 229940075579 propyl gallate Drugs 0.000 claims abstract description 8
- 235000010388 propyl gallate Nutrition 0.000 claims abstract description 8
- 239000000473 propyl gallate Substances 0.000 claims abstract description 8
- 235000019738 Limestone Nutrition 0.000 claims description 26
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 26
- 239000006028 limestone Substances 0.000 claims description 26
- 239000011707 mineral Substances 0.000 claims description 26
- 239000000843 powder Substances 0.000 claims description 17
- 238000003541 multi-stage reaction Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 3
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 3
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000013329 compounding Methods 0.000 claims description 2
- 238000005453 pelletization Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 5
- 230000000052 comparative effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- 229920000426 Microplastic Polymers 0.000 description 1
- 229920002334 Spandex Polymers 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000004759 spandex Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic 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
- 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
- C04B40/0039—Premixtures of ingredients
-
- 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
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The application discloses a modified high modulus agent for asphalt, a preparation method and application thereof, wherein the modified high modulus agent for asphalt is prepared from the following raw materials in parts by weight: 15-30 parts of methyl vinyl silicone rubber, 10-20 parts of thermoplastic polyurethane rubber, 5-10 parts of polyethylene plastic particles, 2-5 parts of castor oil, 1-2 parts of propyl gallate, 5-10 parts of C9 petroleum resin and 10-20 parts of styrene-butadiene rubber; the modified high modulus agent for asphalt is provided based on the French high modulus design concept and on the basis of the traditional low-grade asphalt or hard asphalt, and the modulus and fatigue performance of the mixture can be improved by adding the modified high modulus agent for asphalt into the mixture, meanwhile, the rut resistance can be greatly improved, the requirements of special road sections can be met, the pavement thickness can be reduced, and the economic benefit can be improved.
Description
Technical Field
The application relates to the technical field of asphalt modification, in particular to a modified high-modulus agent for asphalt, a preparation method and application thereof.
Background
One of the main damage forms of the expressway is road surface damage, in the main diseases of asphalt road surfaces, rutting phenomenon is particularly common, the damage to the road surfaces is most serious, and the repair cost of the road surfaces is greatly increased. Rutting problems generally occur in the first summer high temperature period, and some pavement rutting depths are 10-50 mm, even more than 100mm, so that pavement evenness is poor, and symptoms such as network cracks, pits and pits are rapidly generated. And with the rise of temperature and the improvement of road surface axle load, ordinary modified asphalt concrete road surface can satisfy the requirement to general load driving section, but adopts the same modified asphalt to some special highway sections such as heavy lane, intersection, service area, uphill creep and the like, and diseases such as rutting take place very soon, reduce road surface driving travelling comfort, can lead to even road surface driving security to reduce.
The main improvement measures of the prior art are that the matrix asphalt is subjected to blending modification by high-mixing-amount rock asphalt powder or anti-rutting master batch, so that the high-strength modified asphalt is prepared, the strength is improved, but the rock asphalt powder has more ash content, is easy to precipitate, is easy to pollute pipelines and the bottom of a siltation tank in long-term production, and is unfavorable for long-time production and product storage.
Disclosure of Invention
The application aims to provide a modified high modulus agent for asphalt, a preparation method and application thereof, and the modified high modulus agent for asphalt can improve the modulus and fatigue performance of a mixture, greatly improve the rutting resistance, meet the requirements of special road sections (such as heavy lanes), reduce the thickness of a road surface and improve the economic benefit.
In order to achieve the above object of the present application, the following technical solutions are specifically adopted:
the application provides a modified high modulus agent for asphalt, which is prepared from the following raw materials in parts by weight:
15-30 parts of methyl vinyl silicone rubber, 10-20 parts of thermoplastic polyurethane rubber, 5-10 parts of polyethylene plastic particles, 2-5 parts of castor oil, 1-2 parts of propyl gallate, 5-10 parts of C9 petroleum resin and 10-20 parts of styrene-butadiene rubber.
Preferably, the modified high modulus agent for asphalt is prepared from the following raw materials in parts by weight:
25 parts of methyl vinyl silicone rubber, 15 parts of thermoplastic polyurethane rubber, 8 parts of polyethylene plastic particles, 3 parts of castor oil, 2 parts of propyl gallate, 7 parts of C9 petroleum resin and 15 parts of styrene-butadiene rubber.
Preferably, the vinyl content in the methyl vinyl silicone rubber is 0.05-0.2%, and the molecular weight is (60-80) multiplied by 10 4 。
Preferably, the polyethylene plastic particles are linear low density polyethylene plastic particles.
The second aspect of the application provides a preparation method of the modified high modulus agent for asphalt, which comprises the following steps:
(a) Weighing the raw materials according to parts by weight;
(b) And mixing the raw materials, carrying out a composite reaction by a double-screw extruder, and granulating by a single-screw extruder to obtain the modified high-modulus agent for asphalt.
Preferably, the temperature of the double-screw extruder for the compounding reaction is 160-190 ℃.
Preferably, the pelletization temperature of the single screw extruder is 110-150 ℃.
The third aspect of the application provides high-modulus modified asphalt, which comprises the following components in parts by weight:
20-40 parts of modified high modulus agent for asphalt, 80-120 parts of asphalt and 2000-2500 parts of mineral aggregate.
Preferably, the asphalt is a low grade asphalt or a hard asphalt.
Preferably, the mineral aggregate consists of limestone aggregate and limestone mineral powder. More preferably, the limestone aggregate comprises coarse aggregate and fine aggregate, and the coarse aggregate, the fine aggregate and the limestone ore powder are required to meet JTG-F40.
Compared with the prior art, the application has the beneficial effects that at least:
the modified high modulus agent for asphalt is provided based on the French high modulus design concept and on the basis of the traditional low-grade asphalt or hard asphalt, and the modulus and fatigue performance of the mixture can be improved by adding the modified high modulus agent for asphalt into the mixture, meanwhile, the rut resistance can be greatly improved, the requirements of special road sections can be met, the pavement thickness can be reduced, and the economic benefit can be improved.
Detailed Description
Embodiments of the technical scheme of the present application will be described in detail below with reference to the embodiments. The following examples are only for more clearly illustrating the technical aspects of the present application, and thus are merely examples, and are not intended to limit the scope of the present application.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs.
The following examples used the following raw materials:
methyl vinyl silicone rubber: vinyl content is 0.08%, molecular weight is 60-68 ten thousand, purchased from Chuangyou silicon rubber technology Co., ltd in Shenzhen city;
thermoplastic polyurethane rubber: wanhua WHT-1190, purchased from Dongguan City super Rong plastics raw materials Co., ltd;
polyethylene plastic particles: linear low density polyethylene plastic pellets available from international trade company, australia, lycra;
c9 petroleum resin: purchased from atanan relin chemical industry limited;
styrene-butadiene rubber: thermoplastic styrene-butadiene rubber; purchased from atanan relin chemical industry limited;
example 1
The embodiment is a modified high modulus agent for asphalt, which is prepared from the following raw materials in parts by weight:
15 parts of methyl vinyl silicone rubber, 20 parts of thermoplastic polyurethane rubber, 5 parts of polyethylene plastic particles, 2 parts of castor oil, 2 parts of propyl gallate, 5 parts of C9 petroleum resin and 10 parts of styrene-butadiene rubber.
The preparation method of the modified high modulus agent for asphalt comprises the following steps:
(a) Weighing the raw materials according to parts by weight;
(b) And mixing the raw materials, performing a composite reaction through a double-screw extruder, and granulating through a single-screw extruder to obtain the modified high modulus agent for asphalt, wherein the temperature of the double-screw extruder for the composite reaction is 180 ℃, and the granulating temperature of the single-screw extruder is 130 ℃.
Example 2
The embodiment is a modified high modulus agent for asphalt, which is prepared from the following raw materials in parts by weight:
30 parts of methyl vinyl silicone rubber, 10 parts of thermoplastic polyurethane rubber, 10 parts of polyethylene plastic particles, 5 parts of castor oil, 1 part of propyl gallate, 10 parts of C9 petroleum resin and 20 parts of styrene-butadiene rubber.
The preparation method of the modified high modulus agent for asphalt comprises the following steps:
(a) Weighing the raw materials according to parts by weight;
(b) And mixing the raw materials, performing a composite reaction through a double-screw extruder, and granulating through a single-screw extruder to obtain the modified high modulus agent for asphalt, wherein the temperature of the double-screw extruder for the composite reaction is 190 ℃, and the granulating temperature of the single-screw extruder is 150 ℃.
Example 3
The embodiment is a modified high modulus agent for asphalt, which is prepared from the following raw materials in parts by weight:
25 parts of methyl vinyl silicone rubber, 15 parts of thermoplastic polyurethane rubber, 8 parts of polyethylene plastic particles, 3 parts of castor oil, 2 parts of propyl gallate, 7 parts of C9 petroleum resin and 15 parts of styrene-butadiene rubber.
The preparation method of the modified high modulus agent for asphalt comprises the following steps:
(a) Weighing the raw materials according to parts by weight;
(b) And mixing the raw materials, performing a composite reaction through a double-screw extruder, and granulating through a single-screw extruder to obtain the modified high modulus agent for asphalt, wherein the temperature of the double-screw extruder for the composite reaction is 180 ℃, and the granulating temperature of the single-screw extruder is 140 ℃.
Example 4
The embodiment is a high-modulus modified asphalt, which comprises the following components in parts by weight:
20 parts of modified high modulus agent for asphalt of example 3, 120 parts of 50# asphalt and 2000 parts of mineral aggregate;
wherein the mineral aggregate consists of limestone aggregate and limestone mineral powder, the mass ratio of the limestone aggregate to the mineral powder is 92:8, and the limestone aggregate consists of 14-20 mm:10-14 mm:5-10 mm:0-5 mm, and the mass ratio of the limestone aggregate to the mineral powder is 16:30:26:20.
Example 5
The embodiment is a high-modulus modified asphalt, which comprises the following components in parts by weight:
40 parts of modified high modulus agent for asphalt of example 3, 80 parts of 50# asphalt and 2500 parts of mineral aggregate;
wherein the mineral aggregate consists of limestone aggregate and limestone mineral powder, the mass ratio of the limestone aggregate to the mineral powder is 92:8, and the limestone aggregate consists of 14-20 mm:10-14 mm:5-10 mm:0-5 mm, and the mass ratio of the limestone aggregate to the mineral powder is 16:30:26:20.
Example 6
The embodiment is a high-modulus modified asphalt, which comprises the following components in parts by weight:
30 parts of modified high modulus agent for asphalt of example 3, 100 parts of 50# asphalt and 2200 parts of mineral aggregate;
wherein the mineral aggregate consists of limestone aggregate and limestone mineral powder, the mass ratio of the limestone aggregate to the mineral powder is 92:8, and the limestone aggregate consists of 14-20 mm:10-14 mm:5-10 mm:0-5 mm, and the mass ratio of the limestone aggregate to the mineral powder is 16:30:26:20.
Comparative example 1
The comparative example is a high modulus modified asphalt comprising the following components in parts by weight:
100 parts of 50# asphalt and 2200 parts of mineral aggregate;
wherein the mineral aggregate consists of limestone aggregate and limestone mineral powder, the mass ratio of the limestone aggregate to the mineral powder is 92:8, and the limestone aggregate consists of 14-20 mm:10-14 mm:5-10 mm:0-5 mm, and the mass ratio of the limestone aggregate to the mineral powder is 16:30:26:20.
Experimental example
The high modulus modified asphalt prepared in examples 4 to 6 and comparative example 1 was tested for modulus, high temperature performance and low temperature performance according to the corresponding test methods in JTG-E20; the test results are shown in Table 1.
TABLE 1
As can be seen from table 1:
the high-modulus modified asphalt prepared by the method has higher modulus, excellent high-temperature and low-temperature resistance, can greatly improve rutting resistance, can meet the requirements of different pavements, and has wider application range.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application, and are intended to be included within the scope of the appended claims and description.
Claims (10)
1. The modified high modulus agent for asphalt is characterized by being prepared from the following raw materials in parts by weight:
15-30 parts of methyl vinyl silicone rubber, 10-20 parts of thermoplastic polyurethane rubber, 5-10 parts of polyethylene plastic particles, 2-5 parts of castor oil, 1-2 parts of propyl gallate, 5-10 parts of C9 petroleum resin and 10-20 parts of styrene-butadiene rubber.
2. The modified high modulus agent for asphalt according to claim 1, wherein the modified high modulus agent for asphalt is prepared from the following raw materials in parts by weight:
25 parts of methyl vinyl silicone rubber, 15 parts of thermoplastic polyurethane rubber, 8 parts of polyethylene plastic particles, 3 parts of castor oil, 2 parts of propyl gallate, 7 parts of C9 petroleum resin and 15 parts of styrene-butadiene rubber.
3. The modified high modulus agent for asphalt according to claim 1 or 2, wherein the vinyl content of the methyl vinyl silicone rubber is 0.05 to 0.2%, and the molecular weight is (60 to 80). Times.10 4 。
4. The modified high modulus agent for asphalt according to claim 1 or 2, wherein the polyethylene plastic particles are linear low density polyethylene plastic particles.
5. The method for preparing a modified high modulus agent for asphalt according to any one of claims 1 to 4, comprising the steps of:
(a) Weighing the raw materials according to parts by weight;
(b) And mixing the raw materials, carrying out a composite reaction by a double-screw extruder, and granulating by a single-screw extruder to obtain the modified high-modulus agent for asphalt.
6. The method according to claim 5, wherein the twin-screw extruder performs the compounding reaction at a temperature of 160 to 190 ℃.
7. The process according to claim 5, wherein the single screw extruder has a pelletization temperature of 110 to 150 ℃.
8. The high-modulus modified asphalt is characterized by comprising the following components in parts by weight:
20-40 parts of modified high modulus agent for asphalt, 80-120 parts of asphalt and 2000-2500 parts of mineral aggregate according to any one of claims 1-4.
9. The high modulus modified asphalt of claim 1, wherein the asphalt is a low grade asphalt or a hard asphalt.
10. The high modulus modified asphalt according to claim 8, wherein the mineral aggregate consists of limestone aggregate and limestone mineral powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310555538.8A CN116589221B (en) | 2023-05-17 | 2023-05-17 | Modified high-modulus agent for asphalt and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310555538.8A CN116589221B (en) | 2023-05-17 | 2023-05-17 | Modified high-modulus agent for asphalt and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116589221A true CN116589221A (en) | 2023-08-15 |
| CN116589221B CN116589221B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310555538.8A Active CN116589221B (en) | 2023-05-17 | 2023-05-17 | Modified high-modulus agent for asphalt and preparation method and application thereof |
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| Country | Link |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5393819A (en) * | 1994-02-25 | 1995-02-28 | Alphaflex Industries | Asphalt modifier |
| JP2001131348A (en) * | 1999-11-08 | 2001-05-15 | Bridgestone Corp | Method of manufacturing for asphalt modifier |
| CN103773006A (en) * | 2012-10-17 | 2014-05-07 | 上海市政工程设计研究总院（集团）有限公司 | High-modulus bituminous mixture additive and preparation method thereof |
| CN106977965A (en) * | 2017-04-26 | 2017-07-25 | 詹澍 | A kind of modified hard pitch of high ductility and preparation method thereof |
| KR20180058504A (en) * | 2016-11-24 | 2018-06-01 | 김혜주 | Mdehtod of constructing multi-layers formed from asphalt material |
| CN109181329A (en) * | 2018-09-29 | 2019-01-11 | 杨林 | Stable anti-cracking modified asphalt and preparation method thereof |
| CN109233313A (en) * | 2018-09-26 | 2019-01-18 | 上海仁聚新材料科技有限公司 | A kind of high-modulus asphalt modifying agent, high-modulus composite modified asphalt, asphalt and preparation method thereof |
| CN109971194A (en) * | 2019-04-17 | 2019-07-05 | 许昌金欧特沥青股份有限公司 | A kind of high-modulus rubber asphalt and preparation method thereof |
| CN112608607A (en) * | 2020-12-04 | 2021-04-06 | 中路交科科技股份有限公司 | High-strength modified asphalt and preparation method thereof |
-
2023
- 2023-05-17 CN CN202310555538.8A patent/CN116589221B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5393819A (en) * | 1994-02-25 | 1995-02-28 | Alphaflex Industries | Asphalt modifier |
| JP2001131348A (en) * | 1999-11-08 | 2001-05-15 | Bridgestone Corp | Method of manufacturing for asphalt modifier |
| CN103773006A (en) * | 2012-10-17 | 2014-05-07 | 上海市政工程设计研究总院（集团）有限公司 | High-modulus bituminous mixture additive and preparation method thereof |
| KR20180058504A (en) * | 2016-11-24 | 2018-06-01 | 김혜주 | Mdehtod of constructing multi-layers formed from asphalt material |
| CN106977965A (en) * | 2017-04-26 | 2017-07-25 | 詹澍 | A kind of modified hard pitch of high ductility and preparation method thereof |
| CN109233313A (en) * | 2018-09-26 | 2019-01-18 | 上海仁聚新材料科技有限公司 | A kind of high-modulus asphalt modifying agent, high-modulus composite modified asphalt, asphalt and preparation method thereof |
| CN109181329A (en) * | 2018-09-29 | 2019-01-11 | 杨林 | Stable anti-cracking modified asphalt and preparation method thereof |
| CN109971194A (en) * | 2019-04-17 | 2019-07-05 | 许昌金欧特沥青股份有限公司 | A kind of high-modulus rubber asphalt and preparation method thereof |
| CN112608607A (en) * | 2020-12-04 | 2021-04-06 | 中路交科科技股份有限公司 | High-strength modified asphalt and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN116589221B (en) | 2024-04-16 |
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