CN109957255A - A kind of preparation method of rubber modified asphalt - Google Patents
A kind of preparation method of rubber modified asphalt Download PDFInfo
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- CN109957255A CN109957255A CN201910279895.XA CN201910279895A CN109957255A CN 109957255 A CN109957255 A CN 109957255A CN 201910279895 A CN201910279895 A CN 201910279895A CN 109957255 A CN109957255 A CN 109957255A
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- pitch
- rubber
- rubber powder
- asphalt
- modified
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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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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 present invention relates to a kind of preparation methods of pitch, specifically, being a kind of preparation method of rubber modified asphalt.It mainly include matrix pitch and rubber powder, the pitch selects 90# road asphalt, the rubber powder that the rubber powder selection higher damaged tire of oblique natural gum content is process, the rubber powder fineness is between -60 mesh of 30 mesh, the matrix pitch is matched by weight with rubber powder, rubber powder: pitch=20:100, modifying agent: pitch=10:100, stabilizer: pitch=9:100.Waste-tyre rubber-powder is used to pitch to be modified, greatly reduce social black pollution, realize the purpose for energy-saving and emission-reduction of turning waste into wealth, there is stronger heat-resisting quantity simultaneously, improve the viscosity of pitch, improve the cryogenic property of pitch, reduce pavement cracking, anti-aging, anti-oxidant and thermal stability is increased for pitch, and since the excellent elasticity of rubber for tire also provides flexible and endurance and anti-crack ability in biggish temperature range for bituminous pavement, to extend 1 ~ 3 times of service life of road surface.
Description
Technical field
The present invention relates to a kind of preparation methods of pitch, specifically, being a kind of preparation method of rubber modified asphalt.
Background technique
Rubber modified asphalt (Asphalt Rubber, abbreviation AR) is a kind of rubber powder made of waste tire, as changing
Property agent is added in matrix pitch, in a special special installation, through a series of works such as high temperature, additive and shear-mixed
With manufactured novel high-quality composite material.The service life on road surface can be made to improve, reduce noise, mitigate vibration, improve heat surely
Qualitative and Thermal cracking improves freezing.
China builds road and SBS modified pitch is widely used at present, and SBS is expensive, with skyrocketing for oil price,
The price of SBS is up to 22000 yuan/ton.And waste-tyre rubber-powder price only has 3000 yuan/ton, through calculating, per 100 km can be reduced
25,000,000 yuan of road surface cost.
Summary of the invention
In order to solve the above-mentioned technical problem, waste-tyre rubber-powder is used for pitch and is modified by the present invention, is significantly reduced
Social black pollution, realizes the purpose for energy-saving and emission-reduction of turning waste into wealth.
To achieve the goals above, the specific technical solution that the present invention uses is as follows:
A kind of preparation method of rubber modified asphalt, which is characterized in that mainly include matrix pitch and rubber powder, the pitch choosing
The rubber powder being process with 90# road asphalt, the rubber powder selection higher damaged tire of oblique natural gum content, the rubber
Rubber powder fineness is between -60 mesh of 30 mesh, and the matrix pitch is matched by weight with rubber powder, rubber powder: pitch=20:100 changes
Property agent: pitch=10:100, stabilizer: pitch=9:100, the preparation method of the rubber modified asphalt the following steps are included:
(1) prepare rubber modified bitumen: pitch is matched by weight with rubber powder, rubber powder: pitch=20:100, by pitch and glue
Be put into heating tank after powder mixing, temperature risen to 170 °C, the pitch after will heat up is by modifying agent: pitch proportion is added and is modified
Agent, when addition, feed while stirring；
(2) carry out effectively mixing repeatedly: starting colloid merges variable-frequency control pump, and the asphalt after preparing in step 1 is led to
Colloid mill unification is crossed to place into agitator tank after, after the material has all merged, closing machine；
(3) stabilizer is added: according to the proportion by the asphalt after grinding altogether in step 2, stabilizer: pitch=9:100 is added steady
Determine agent, carries out total mill again according to step 2, after number reaches 3-6 times, test to the modified pitch after total mill, Zhi Daoda
To desired indicator；
(4) it develops: the rubber modified asphalt processed is put into progress later period development in holding vessel, development time is 1-2 hours,
Obtain qualified rubber modified asphalt.
The present invention is further improved, and the rubber modified asphalt is modified the storage time in situation no more than 24 at the scene
Hour.
The present invention is further improved, and the storage temperature of the rubber modified asphalt is at 150-160 °C.
Beneficial effects of the present invention: waste-tyre rubber-powder is used for pitch and is modified by the present invention, greatly reduces society
Meeting black pollution, realizes the purpose for energy-saving and emission-reduction of turning waste into wealth, while having stronger heat-resisting quantity, improves the glutinous of pitch
Degree improves the cryogenic property of pitch, reduces pavement cracking, increases anti-aging, anti-oxidant and thermal stability, Er Qieyou for pitch
Flexible and endurance and anti-crack also are provided for bituminous pavement in biggish temperature range in the excellent elasticity of rubber for tire
Ability, to extend 1 ~ 3 times of service life of road surface.
Specific embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment, the invention will be described in further detail, the reality
It applies example for explaining only the invention, protection scope of the present invention is not constituted and limited.
A kind of preparation method of rubber modified asphalt, which is characterized in that mainly include matrix pitch and rubber powder, the drip
Blueness selects 90# road asphalt, the rubber powder that the rubber powder selection higher damaged tire of oblique natural gum content is process, institute
Rubber powder fineness is stated between -60 mesh of 30 mesh, the matrix pitch is matched by weight with rubber powder, rubber powder: pitch=20:
100, modifying agent: pitch=10:100, stabilizer: pitch=9:100, the preparation method of the rubber modified asphalt include following step
It is rapid:
(1) prepare rubber modified bitumen: pitch is matched by weight with rubber powder, rubber powder: pitch=20:100, by pitch and glue
Be put into heating tank after powder mixing, temperature risen to 170 °C, the pitch after will heat up is by modifying agent: pitch proportion is added and is modified
Agent, when addition, feed while stirring；
(2) carry out effectively mixing repeatedly: starting colloid merges variable-frequency control pump, and the asphalt after preparing in step 1 is led to
Colloid mill unification is crossed to place into agitator tank after, after the material has all merged, closing machine；
(3) stabilizer is added: according to the proportion by the asphalt after grinding altogether in step 2, stabilizer: pitch=9:100 is added steady
Determine agent, carries out total mill again according to step 2, after number reaches 3-6 times, test to the modified pitch after total mill, Zhi Daoda
To desired indicator；
(4) it develops: the rubber modified asphalt processed is put into progress later period development in holding vessel, development time is 1-2 hours,
Obtain qualified rubber modified asphalt.
In the present embodiment, the rubber modified asphalt was modified the storage time in situation no more than 24 hours at the scene.
In the present embodiment, the storage temperature of the rubber modified asphalt is at 150-160 °C.
Basic principles and main features and advantage of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (3)
1. a kind of preparation method of rubber modified asphalt, which is characterized in that mainly include matrix pitch and rubber powder, the pitch
90# road asphalt is selected, the rubber powder that the rubber powder selection higher damaged tire of oblique natural gum content is process is described
Rubber powder fineness is between -60 mesh of 30 mesh, and the matrix pitch is matched by weight with rubber powder, rubber powder: pitch=20:100,
Modifying agent: pitch=10:100, stabilizer: pitch=9:100, the preparation method of the rubber modified asphalt the following steps are included:
Prepare rubber modified bitumen: pitch is matched by weight with rubber powder, rubber powder: pitch=20:100 mixes pitch and rubber powder
Be put into heating tank after conjunction, temperature risen to 170 °C, the pitch after will heat up is by modifying agent: modifying agent is added in pitch proportion,
It feeds while stirring when addition；
Carry out effectively mixing repeatedly: starting colloid merges variable-frequency control pump, and the asphalt after preparing in step 1 is passed through glue
Body places into agitator tank after merging one time, after the material has all merged, closing machine；
Stabilizer is added: according to the proportion by the asphalt after grinding altogether in step 2, stabilizer: pitch=9:100, which is added, to be stablized
Agent carries out total mill again according to step 2, after number reaches 3-6 times, tests to the modified pitch after total mill, until reaching
Desired indicator；
Development: being put into progress later period development in holding vessel for the rubber modified asphalt processed, and development time is 1-2 hours, is obtained
To qualified rubber modified asphalt.
2. a kind of preparation method of rubber modified asphalt according to claim 1, which is characterized in that the modified rubber drip
The green storage time being modified in situation at the scene was no more than 24 hours.
3. a kind of preparation method of rubber modified asphalt according to claim 2, which is characterized in that the modified rubber
The storage temperature of pitch is at 150-160 °C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910279895.XA CN109957255A (en) | 2019-04-09 | 2019-04-09 | A kind of preparation method of rubber modified asphalt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910279895.XA CN109957255A (en) | 2019-04-09 | 2019-04-09 | A kind of preparation method of rubber modified asphalt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109957255A true CN109957255A (en) | 2019-07-02 |
Family
ID=67025887
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910279895.XA Pending CN109957255A (en) | 2019-04-09 | 2019-04-09 | A kind of preparation method of rubber modified asphalt |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387130A (en) * | 2019-07-15 | 2019-10-29 | 南京科技职业学院 | A kind of preparation method of rubber powder asphalt |
| CN111440456A (en) * | 2020-04-23 | 2020-07-24 | 中交路桥建设有限公司 | SBS rubber powder modified asphalt, preparation method and pavement construction method thereof |
| CN112111164A (en) * | 2020-08-26 | 2020-12-22 | 盐城工学院 | Method for refining asphalt for road construction |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916005A (en) * | 2017-12-05 | 2018-04-17 | 佛山市高明区明城镇新能源新材料产业技术创新中心 | A kind of environment-friendly rubber asphalt and preparation method thereof |
| CN108219487A (en) * | 2017-12-30 | 2018-06-29 | 中铁十八局集团第五工程有限公司 | A kind of rubber powder modified asphalt and preparation method thereof |
| CN109181328A (en) * | 2018-09-28 | 2019-01-11 | 南京科技职业学院 | A kind of preparation method of composite modified asphalt |
-
2019
- 2019-04-09 CN CN201910279895.XA patent/CN109957255A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916005A (en) * | 2017-12-05 | 2018-04-17 | 佛山市高明区明城镇新能源新材料产业技术创新中心 | A kind of environment-friendly rubber asphalt and preparation method thereof |
| CN108219487A (en) * | 2017-12-30 | 2018-06-29 | 中铁十八局集团第五工程有限公司 | A kind of rubber powder modified asphalt and preparation method thereof |
| CN109181328A (en) * | 2018-09-28 | 2019-01-11 | 南京科技职业学院 | A kind of preparation method of composite modified asphalt |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387130A (en) * | 2019-07-15 | 2019-10-29 | 南京科技职业学院 | A kind of preparation method of rubber powder asphalt |
| CN111440456A (en) * | 2020-04-23 | 2020-07-24 | 中交路桥建设有限公司 | SBS rubber powder modified asphalt, preparation method and pavement construction method thereof |
| CN112111164A (en) * | 2020-08-26 | 2020-12-22 | 盐城工学院 | Method for refining asphalt for road construction |
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Application publication date: 20190702 |