CN102558883A - High viscosity modified asphalt and preparation method thereof - Google Patents
High viscosity modified asphalt and preparation method thereof Download PDFInfo
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- CN102558883A CN102558883A CN2011104415293A CN201110441529A CN102558883A CN 102558883 A CN102558883 A CN 102558883A CN 2011104415293 A CN2011104415293 A CN 2011104415293A CN 201110441529 A CN201110441529 A CN 201110441529A CN 102558883 A CN102558883 A CN 102558883A
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Abstract
The invention discloses a high viscosity modified asphalt and comprises, by weight, ordinary grade A asphalt, thermoplastic elastomer, high styrene, a plasticizer extender and a stabilizing agent. The preparation method includes: (1) heating the ordinary grade A asphalt to 150 DEG C; (2) according to the ratio, adding the plasticizer extender, the high styrene, and the thermoplastic elastomer into the ordinary grade A asphalt, and then increasing the temperature to a range from 165 DEG C to 200 DEG C, stirring and swelling the mixture for 30 minutes, and cutting or grinding to solid particles about 2 to 5 micrometers; (3) adding the stabilizing agent, stirring and developing the mixture for 1-12 hours, and then obtaining the high viscosity modified asphalt. According to the high viscosity modified asphalt and the preparation method thereof, the preparing method is simple, the high viscosity asphalt with high temperature and normal temperature performances and the rain scour resistance performance can be used for paving heavy load and heavy traffic road section and drainage pavements and large particle size pavements, and the friction coefficient of the pavement and the safety of driving in rainy days are improved; the viscosity of the high viscosity modified asphalt is over 100 times that of the ordinary asphalt at the temperature of 60 DEG C, and is 5- 10 times that of the modified asphalt, and widely used in various pavements , airports and wharves.
Description
Technical field
The present invention relates to pavement construction material, be specifically related to an a kind of high-viscosity modified asphalt and a preparation method.
Background technology
Pitch is used material of construction as a kind of road, has had to have gone up century-old history.Along with expanding economy; The heavy duty of vehicle and heavy traffic degree day contain; Performance requriements to bituminous material is increasingly high, and especially the ability of bituminous high-temperature behavior and normal temperature performance and anti-rain drop erosion requires bituminous material can adapt to heavy duty and busy traffic requirement.
Though modifying asphalt can improve the bituminous performance, can not solve heavy duty and heavy burden and the high temperature of heavy traffic formation and the defective of normal temperature and rain drop erosion but still exist.
Summary of the invention
The purpose of this invention is to provide prescription rationally, working method is easy, and viscosity is high, good heat resistance, and surface friction coefficient is big, has improved a kind of high-viscosity modified asphalt of rainy day travel safety.
Another object of the present invention provides the preparation method of high-viscosity modified asphalt.
A kind of high-viscosity modified asphalt is made up of 100 parts of common A level pitches, 5 parts of-8 parts of thermoplastic elastomers, 0 part～5 parts thermoplasticity high-phenylethylenes, 0 part～10 parts increase-volume softening agent, 0.05 part～0.5 part stablizer by weight; 60 ℃ of viscosity >=40 of gained high-viscosity modified asphalt, 000Pa.S.
Said thermoplastic elastomer is SBS or SEBS or SEPS one or more mixtures wherein, and its blending ratio is SBS:SEBS:SEPS=80～100:0～20:0～10.
The styrene content of described thermoplasticity high-phenylethylene is 40%-90%.
Said increase-volume softening agent is a rubber oil, and aromaticity content is greater than 65% in the rubber oil.
Said stablizer is a sulphur.
A kind of preparation method of high-viscosity modified asphalt, undertaken by following step:
1), common A level pitch is heated to 150 ℃;
2) add, in proportion after increase-volume softening agent, thermoplasticity high-phenylethylene and thermoplastic elastomer join common A level pitch, improve temperature to 165 ℃～200 ℃ again, stirred swelling 30 minutes, shearing or be ground to solid particulate is about the 2-5 micron;
3), add stablizer, stir and grew 1～12 hour, promptly get high-viscosity modified asphalt.
The present invention compared with prior art; Starting material wide material sources, working method are simple; Utilize existing modifying asphalt production unit get final product, asphaltum with high viscosity has better high-temperature behavior and normal temperature performance and anti-rain drop erosion performance, and high-viscosity modified asphalt can the making heavy duty and big traffic highway section and drainage pavement and particle diameter road surface greatly; Improve surface friction coefficient, improved the rainy day traveling security; High-viscosity modified asphalt is owing to have 60 ℃ of higher viscosity, and more than 100 times of 60 ℃ of viscosity of plain asphalt often is many times of the 5-10 of modifying asphalt, extensively is suitable for various road surfaces, airport, harbour.
Embodiment
Below in conjunction with embodiment summary of the invention is done further explain, but protection scope of the present invention is not limited by embodiment.
A kind of high-viscosity modified asphalt is made up of 100 parts of common A level pitches, 5 parts of-8 parts of thermoplastic elastomers, 0 part～5 parts thermoplasticity high-phenylethylenes, 0 part～10 parts increase-volume softening agent, 0.05 part～0.5 part stablizer by weight; 60 ℃ of viscosity >=40 of gained high-viscosity modified asphalt, 000Pa.S.
Said thermoplastic elastomer is SBS or SEBS or SEPS one or more mixtures wherein, and its blending ratio is SBS:SEBS:SEPS=80～100:0～20:0～10.
Styrene content in the described high-phenylethylene is 40%-90%.
Said increase-volume softening agent is that aromaticity content is oily greater than 65% rubber.
Said stablizer is a sulphur.
A kind of preparation method of high-viscosity modified asphalt, undertaken by following step:
1), common A level pitch is heated to 150 ℃;
2) add, in proportion after increase-volume softening agent, thermoplastic elastomer and high-phenylethylene join common A level pitch, improve temperature to 165 ℃～200 ℃ again, stirred swelling 30 minutes, shearing or be ground to solid particulate is about the 2-5 micron;
3), add stablizer, stir and grew 1～12 hour, promptly get high-viscosity modified asphalt.
Embodiment 1:
100 parts of common 90-A pitches are heated to 150 ℃, 6 parts of the thermoplastic elastomers that SBS:SEBS:SEPS=80:10:10 is formed; 1 part of the high-phenylethylene of styrene content 85%; The increase-volume softening agent adds in the pitch for 3.5 parts; Temperature is increased to 190 ℃, stirs swelling after 30 minutes, and high-shear or to be ground to solid particulate be about 3 microns adds 0.20 part of stablizer, stirs and grows 2 hours, promptly gets high-viscosity modified asphalt.The performance index of this high-viscosity modified asphalt are following:
Embodiment 2:
100 parts of common 90-A pitches are heated to 185 ℃, with 5 parts of SBS thermoplastic elastomers; 3 parts of the high-phenylethylenes of styrene content 55%; The increase-volume softening agent adds in the pitch for 5 parts; Temperature is increased to 195 ℃, stirs swelling after 30 minutes, and high-shear or to be ground to solid particulate be about 5 microns adds 0.15 part of stablizer, stirs and grows 3 hours, promptly gets high-viscosity modified asphalt.The performance index of this high-viscosity modified asphalt are following:
* because China does not also have the high-viscosity asphalt relevant criterion, the relevant criterion that therefore adopts Japan is as reference.
Can find out that through contrast no human relations embodiment 1 still is the requirement that the performance of embodiment 2 prepared HV modifications all meets Nippon Standard.
Claims (6)
1. high-viscosity modified asphalt; It is characterized in that forming by 100 parts of common A level pitches, 5 parts of-8 parts of thermoplastic elastomers, 0 part～5 parts thermoplasticity high-phenylethylenes, 0 part～10 parts increase-volume softening agent, 0.05 part～0.5 part stablizer by weight; 60 ℃ of viscosity >=40 of gained high-viscosity modified asphalt, 000Pa.S.
2. a kind of high-viscosity modified asphalt according to claim 1; It is characterized in that said thermoplastic elastomer is particulate state SBS or SEBS or SEPS one or more mixtures wherein, its blending ratio is SBS:SEBS:SEPS=80～100:0～20:0～10.
3. a kind of high-viscosity modified asphalt according to claim 1 is characterized in that described thermoplasticity high-phenylethylene is that styrene content is the particulate solid of 40%-90%.
4. a kind of high-viscosity modified asphalt according to claim 1 is characterized in that said increase-volume softening agent is that aromaticity content is oily greater than 65% rubber.
5. a kind of high-viscosity modified asphalt according to claim 1 is characterized in that said stablizer is a sulphur.
6. the preparation method of the described a kind of high-viscosity modified asphalt of claim 1, undertaken by following step:
1), common A level pitch is heated to 150 ℃;
2) add, in proportion after expanding material, thermoplastic elastomer and high-phenylethylene join common A level pitch, improve temperature to 165 ℃～200 ℃ again, stirred swelling 30 minutes, shearing or be ground to solid particulate is about 5 microns;
3), add stablizer, stir and grew 1～12 hour, promptly get high-viscosity modified asphalt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104415293A CN102558883A (en) | 2011-12-26 | 2011-12-26 | High viscosity modified asphalt and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104415293A CN102558883A (en) | 2011-12-26 | 2011-12-26 | High viscosity modified asphalt and preparation method thereof |
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| CN102558883A true CN102558883A (en) | 2012-07-11 |
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| CN2011104415293A Pending CN102558883A (en) | 2011-12-26 | 2011-12-26 | High viscosity modified asphalt and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103849153A (en) * | 2014-03-19 | 2014-06-11 | 中石油江苏燃料沥青有限责任公司 | High-viscosity high-elasticity pitch and preparation method thereof |
| CN104059369A (en) * | 2014-07-01 | 2014-09-24 | 无锡市鑫路道路材料有限公司 | Composite polymer modified asphalt and preparing method of composite polymer modified asphalt |
| CN105838097A (en) * | 2016-06-15 | 2016-08-10 | 涂淑光 | High-viscosity asphalt and preparation method thereof |
| CN106633961A (en) * | 2016-12-19 | 2017-05-10 | 长安大学 | High-viscosity modified asphalt material and preparation method thereof |
| CN107421820A (en) * | 2017-08-25 | 2017-12-01 | 南京林业大学 | Asphalt mastic self-healing properties evaluation method based on shape-memory properties |
| CN109439000A (en) * | 2018-09-25 | 2019-03-08 | 厦门百城建设投资有限公司 | A kind of chemical reactivity composite modified asphalt and preparation method thereof |
| CN113248937A (en) * | 2021-05-19 | 2021-08-13 | 山东高速集团有限公司创新研究院 | Special asphalt for airport pavement and preparation method thereof |
| CN115537035A (en) * | 2022-10-18 | 2022-12-30 | 四川省交通建设集团股份有限公司 | Composite modified asphalt and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1990553A (en) * | 2005-12-27 | 2007-07-04 | 上海群康沥青科技有限公司 | High viscosity composite modified asphalt for OGFC |
-
2011
- 2011-12-26 CN CN2011104415293A patent/CN102558883A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1990553A (en) * | 2005-12-27 | 2007-07-04 | 上海群康沥青科技有限公司 | High viscosity composite modified asphalt for OGFC |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103849153A (en) * | 2014-03-19 | 2014-06-11 | 中石油江苏燃料沥青有限责任公司 | High-viscosity high-elasticity pitch and preparation method thereof |
| CN103849153B (en) * | 2014-03-19 | 2016-06-08 | 中石油江苏燃料沥青有限责任公司 | The preparation method of high-viscosity high-elasticity asphalt and high-viscosity high-elasticity asphalt |
| CN104059369A (en) * | 2014-07-01 | 2014-09-24 | 无锡市鑫路道路材料有限公司 | Composite polymer modified asphalt and preparing method of composite polymer modified asphalt |
| CN105838097A (en) * | 2016-06-15 | 2016-08-10 | 涂淑光 | High-viscosity asphalt and preparation method thereof |
| CN105838097B (en) * | 2016-06-15 | 2018-06-29 | 涂淑光 | A kind of asphaltum with high viscosity and preparation method thereof |
| CN106633961A (en) * | 2016-12-19 | 2017-05-10 | 长安大学 | High-viscosity modified asphalt material and preparation method thereof |
| CN107421820A (en) * | 2017-08-25 | 2017-12-01 | 南京林业大学 | Asphalt mastic self-healing properties evaluation method based on shape-memory properties |
| CN109439000A (en) * | 2018-09-25 | 2019-03-08 | 厦门百城建设投资有限公司 | A kind of chemical reactivity composite modified asphalt and preparation method thereof |
| CN109439000B (en) * | 2018-09-25 | 2021-03-26 | 厦门百城建设投资有限公司 | Chemically reactive composite modified asphalt and preparation method thereof |
| CN113248937A (en) * | 2021-05-19 | 2021-08-13 | 山东高速集团有限公司创新研究院 | Special asphalt for airport pavement and preparation method thereof |
| CN115537035A (en) * | 2022-10-18 | 2022-12-30 | 四川省交通建设集团股份有限公司 | Composite modified asphalt and preparation method thereof |
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Application publication date: 20120711 |