CN104004367A - Preparation method of modified asphalt - Google Patents
Preparation method of modified asphalt Download PDFInfo
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- CN104004367A CN104004367A CN201410173284.4A CN201410173284A CN104004367A CN 104004367 A CN104004367 A CN 104004367A CN 201410173284 A CN201410173284 A CN 201410173284A CN 104004367 A CN104004367 A CN 104004367A
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Abstract
The invention discloses a preparation method of modified asphalt. Waste rubber is crushed to form particles, the particles are dispersed in a plasticizer and are activated, and the activated particles are mixed with gypsum whiskers to form a modifier. The addition of the gypsum whiskers reduces the consumption of matrix asphalt and reduces the engineering cost. The addition of the waste rubber particles avoids the problems of poor high temperature stability and small low temperature ductility caused by individual addition of the gypsum whiskers, and improves the ageing resistance. The modified asphalt finished product can meet national standard requirements, can be used in the construction of asphalt road pavements, is simple to operate, and is suitable for large scale popularization.
Description
Technical field
The invention belongs to chemical field, relate to a kind of preparation method of modifying asphalt.
Technical background
Along with the fast development of highway in China carrier, oil and asphalt price rise steadily, and bituminous coat project investment increases greatly.In addition, the vehicle in transport by road maximizes, heavily loaded, overloading is more and more serious, and highroad is more and more higher in high-temperature stability, low-temperature cracking-resistance, resistance to deterioration and life requirement.Therefore find additive cheap, modification better performances particularly important.On the other hand.Due to the fast development of automotive industry, the annual damaged tire producing of China also increases rapidly, and, damaged tire is buried, burns, stacked and be helpless to radical cure " black pollution ".Therefore carry out rationally utilizing of rubber sources extremely urgent.Have very early in the world rubber for modifying asphalt, practice finds, rubber powder modified asphalt is better performances not only, also has advantages of noise reduction, increases bullet, and low price, has realized again the utilization of resources.Gypsum is raw material more cheap and easy to get, can act synergistically with being used in conjunction with of rubber, optimizes asphalt performance, and further reduces engineering cost.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of modifying asphalt.
The present invention realizes by following measure:
The preparation method of modifying asphalt, is characterized in that:
Comprise the steps:
A. waste and old rubber particle is pulverized as particle through pulverizer;
B. waste and old rubber particle adds softening agent, under ultrasonication, activates;
C. rubber grain and the crystal whisker of gypsum after activation is mixed to get composite asphalt modifier;
D. in agitator, add bitumen A H-70, add composite asphalt modifier after being warmed up to 120-140 degree Celsius, after stirring, obtain modifying asphalt.
Described method, is characterized in that it is 60-80 order size that A step waste rubber tire is pulverized through pulverizer.
Described method, is characterized in that B step softening agent is the one in trioctyl phosphate, dioctyl sebacate, dibutyl phthalate, dioctyl phthalate (DOP).
Described method, is characterized in that waste and old rubber particle and softening agent mass ratio are 1:0.5-2, and ultrasonic activation temperature is normal temperature, and the time is 14-16 min.
Described method, is characterized in that C step waste and old rubber particle and crystal whisker of gypsum mass ratio are 1:3.5-4.
Described method, is characterized in that D step pitch and properties-correcting agent mass ratio are 3:0.5-1, and mixing temperature is 120-135
oc.
Described method, is characterized in that: the composite asphalt modifier obtaining and pitch and complex additive mix according to the ratio of 0.5-1:3:0.1-0.2, make modifying asphalt;
Described complex additive is made by the raw material of following weight parts: ethoxylated dodecyl alcohol 0.1-0.2, aluminum stearate 0.4-0.5, methyl acrylate 0.2-0.4, urea 0.1-0.2, epoxy soybean oil 0.2-0.4, polycarbonate 0.2-0.5, silane coupling agent DL171 1-2, oxidation inhibitor 1135 0.1-0.2, wilkinite 5-10;
The preparation method of complex additive is: wilkinite and urea are joined in the deionized water of 55 DEG C-65 DEG C, stir, then add ethoxylated dodecyl alcohol, methyl acrylate, stir 20-30 minute, then add all the other raw materials, stir 10-20 minute, after oven dry, to obtain final product.
Beneficial effect of the present invention:
1. the input of asphalt modifier crystal whisker of gypsum has reduced the consumption of matrix pitch, has reduced engineering cost.
Waste old add the little problem of poor high temperature stability, low-temperature ductility of having avoided independent interpolation crystal whisker of gypsum and cause, and improved ageing resistance.
3. the pitch finished product after modification can reach national regulation requirement, can be used for bituminous highway pavement construction, easy and simple to handle, suitable large-scale promotion.
Embodiment
For a better understanding of the present invention, describe by following instance:
Embodiment 1,
By waste and old rubber particle through pulverizer pulverize be 60 order sizes, mix with 1:1 mass ratio with dibutyl phthalate, swelling 24 h after room temperature ultrasonic activation 15 min, complete swelling after, add crystal whisker of gypsum, mix and obtain composite asphalt modifier.Composite asphalt modifier is added in the matrix pitch AH-70 of melting, holding temperature is 135
oc mixes, and obtains modifying asphalt.Rubber grain, crystal whisker of gypsum and matrix pitch quality when performance of modified bitumen detected result according to shown in table 1.
Table 1 rubber grain and crystal whisker of gypsum composite modifier composition and performance of modified bitumen
Note: specification adopts JTG F40-2004 " standard specification for construction and acceptance of highway asphalt pavement "
As seen from Table 1, use separately crystal whisker of gypsum modifying asphalt penetration degree and 15
oc ductility does not reach national regulation requirement, and acts synergistically adding after a certain amount of rubber grain, after energy, in the situation that reducing matrix pitch consumption, makes the performance of modifying asphalt reach national regulation requirement.Crystal whisker of gypsum is more cheap and easy to get, has reduced engineering cost.
Embodiment 2,
The preparation method of modifying asphalt,
Comprise the steps:
A. waste and old rubber particle is pulverized the particle for 60-80 order size through pulverizer;
B. waste and old rubber particle adds trioctyl phosphate, under ultrasonication, activates, and waste and old rubber particle and trioctyl phosphate mass ratio are 1:1, and ultrasonic activation temperature is normal temperature, and the time is 15 min;
C. rubber grain and the crystal whisker of gypsum after activation is mixed to get composite asphalt modifier, and waste and old rubber particle and crystal whisker of gypsum mass ratio are 1:3.5;
D. the composite asphalt modifier obtaining and pitch and complex additive mix according to the ratio of 1:3:0.2, are warmed up to after 125 DEG C, stir 15 minutes, make modifying asphalt.
Described complex additive is made by the raw material of following weight parts: ethoxylated dodecyl alcohol 0.2, aluminum stearate 0.5, methyl acrylate 0.2, urea 0.2, epoxy soybean oil 0.4, polycarbonate 0.2, silane coupling agent DL171 2, oxidation inhibitor 1,135 0.2, wilkinite 10;
The preparation method of complex additive is: wilkinite and urea are joined in the deionized water of 65 DEG C, stir, then add ethoxylated dodecyl alcohol, methyl acrylate, stir 30 minutes, then add all the other raw materials, stir 20 minutes, after oven dry, to obtain final product.
The softening temperature of gained modifying asphalt is 68.5 DEG C, 15oC ductility 110cm.
Claims (7)
1. the preparation method of modifying asphalt, is characterized in that:
Comprise the steps:
A. waste and old rubber particle is pulverized as particle through pulverizer;
B. waste and old rubber particle adds softening agent, under ultrasonication, activates;
C. rubber grain and the crystal whisker of gypsum after activation is mixed to get composite asphalt modifier;
D. in agitator, add bitumen A H-70, add composite asphalt modifier after being warmed up to 120-140 degree Celsius, after stirring, obtain modifying asphalt.
2. the method for claim 1, is characterized in that it is 60-80 order size that A step waste rubber tire is pulverized through pulverizer.
3. the method for claim 1, is characterized in that B step softening agent is the one in trioctyl phosphate, dioctyl sebacate, dibutyl phthalate, dioctyl phthalate (DOP).
4. the method for claim 1, is characterized in that waste and old rubber particle and softening agent mass ratio are 1:0.5-2, and ultrasonic activation temperature is normal temperature, and the time is 14-16 min.
5. the method for claim 1, is characterized in that C step waste and old rubber particle and crystal whisker of gypsum mass ratio are 1:3.5-4.
6. the method for claim 1, is characterized in that D step pitch and properties-correcting agent mass ratio are 3:0.5-1, and mixing temperature is 120-135
oc.
7. the method for claim 1, is characterized in that: the composite asphalt modifier obtaining and pitch and complex additive mix according to the ratio of 0.5-1:3:0.1-0.2, make modifying asphalt;
Described complex additive is made by the raw material of following weight parts: ethoxylated dodecyl alcohol 0.1-0.2, aluminum stearate 0.4-0.5, methyl acrylate 0.2-0.4, urea 0.1-0.2, epoxy soybean oil 0.2-0.4, polycarbonate 0.2-0.5, silane coupling agent DL171 1-2, oxidation inhibitor 1135 0.1-0.2, wilkinite 5-10;
The preparation method of complex additive is: wilkinite and urea are joined in the deionized water of 55 DEG C-65 DEG C, stir, then add ethoxylated dodecyl alcohol, methyl acrylate, stir 20-30 minute, then add all the other raw materials, stir 10-20 minute, after oven dry, to obtain final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410173284.4A CN104004367B (en) | 2014-04-28 | 2014-04-28 | The preparation method of modified pitch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410173284.4A CN104004367B (en) | 2014-04-28 | 2014-04-28 | The preparation method of modified pitch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104004367A true CN104004367A (en) | 2014-08-27 |
| CN104004367B CN104004367B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410173284.4A Expired - Fee Related CN104004367B (en) | 2014-04-28 | 2014-04-28 | The preparation method of modified pitch |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893058A (en) * | 2015-06-11 | 2015-09-09 | 江苏金阳新材料科技有限公司 | Environmental protection asphalt modifier and preparation method thereof |
| CN106084820A (en) * | 2016-06-20 | 2016-11-09 | 安徽金丰新型建材有限公司 | A kind of high performance modified bitumen |
| CN108504121A (en) * | 2018-04-04 | 2018-09-07 | 江蔓青 | A kind of preparation method of waste and old rubber modified asphalt |
| CN110982290A (en) * | 2019-12-20 | 2020-04-10 | 河南交通职业技术学院 | Aged asphalt regenerant and preparation method thereof |
| CN111334056A (en) * | 2020-03-20 | 2020-06-26 | 南京诚赢集约建材科技有限公司 | Modified odorless asphalt mixture and preparation method thereof |
| CN114906868A (en) * | 2022-06-02 | 2022-08-16 | 湖北工业大学 | Efficient phosphogypsum purification method and application |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57119953A (en) * | 1980-11-27 | 1982-07-26 | Idemitsu Kosan Co Ltd | Bituminous vibration-proof sheet and preparation of same |
| CN1597782A (en) * | 2003-09-17 | 2005-03-23 | 西北师范大学 | Composite of modified road asphalt by microwave radiating old rubber powder and its preparation process |
| CN103030985A (en) * | 2013-01-29 | 2013-04-10 | 四川省达州质量技术监督检验测试中心 | Sulfur and gypsum whisker composite asphalt modifier, modified asphalt and preparation method thereof |
| CN103232708A (en) * | 2013-01-29 | 2013-08-07 | 四川省达州质量技术监督检验测试中心 | Novel asphalt composite modifier, modified asphalt and preparation method of the modified asphalt |
-
2014
- 2014-04-28 CN CN201410173284.4A patent/CN104004367B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57119953A (en) * | 1980-11-27 | 1982-07-26 | Idemitsu Kosan Co Ltd | Bituminous vibration-proof sheet and preparation of same |
| CN1597782A (en) * | 2003-09-17 | 2005-03-23 | 西北师范大学 | Composite of modified road asphalt by microwave radiating old rubber powder and its preparation process |
| CN103030985A (en) * | 2013-01-29 | 2013-04-10 | 四川省达州质量技术监督检验测试中心 | Sulfur and gypsum whisker composite asphalt modifier, modified asphalt and preparation method thereof |
| CN103232708A (en) * | 2013-01-29 | 2013-08-07 | 四川省达州质量技术监督检验测试中心 | Novel asphalt composite modifier, modified asphalt and preparation method of the modified asphalt |
Non-Patent Citations (2)
| Title |
|---|
| 李军代: ""硫酸钙晶须在沥青路面应用的***性研究"", 《华东交通大学学报》 * |
| 董诚春: ""胶粉改性沥青的生产及其在公路建设中的应用"", 《橡塑资源利用》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893058A (en) * | 2015-06-11 | 2015-09-09 | 江苏金阳新材料科技有限公司 | Environmental protection asphalt modifier and preparation method thereof |
| CN106084820A (en) * | 2016-06-20 | 2016-11-09 | 安徽金丰新型建材有限公司 | A kind of high performance modified bitumen |
| CN108504121A (en) * | 2018-04-04 | 2018-09-07 | 江蔓青 | A kind of preparation method of waste and old rubber modified asphalt |
| CN110982290A (en) * | 2019-12-20 | 2020-04-10 | 河南交通职业技术学院 | Aged asphalt regenerant and preparation method thereof |
| CN111334056A (en) * | 2020-03-20 | 2020-06-26 | 南京诚赢集约建材科技有限公司 | Modified odorless asphalt mixture and preparation method thereof |
| CN114906868A (en) * | 2022-06-02 | 2022-08-16 | 湖北工业大学 | Efficient phosphogypsum purification method and application |
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| Publication number | Publication date |
|---|---|
| CN104004367B (en) | 2016-08-17 |
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Effective date of registration: 20160616 Address after: 243000 Anhui city of Ma'anshan Province Yu Shan Economic Development Zone Applicant after: ANHUI GVG NEW MATERIAL Co.,Ltd. Address before: 243100 Anhui city of Ma'anshan province Dangtu County Chengqiao the Bund Red Sun Life Science Industrial Park Applicant before: ANHUI HONGTAIYANG NEW MATERIAL CO.,LTD. |
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