CN101205390A - Compound modified rubber asphalt - Google Patents
Compound modified rubber asphalt Download PDFInfo
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- CN101205390A CN101205390A CNA2006101476839A CN200610147683A CN101205390A CN 101205390 A CN101205390 A CN 101205390A CN A2006101476839 A CNA2006101476839 A CN A2006101476839A CN 200610147683 A CN200610147683 A CN 200610147683A CN 101205390 A CN101205390 A CN 101205390A
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- asphalt
- rubber asphalt
- rubber
- modified rubber
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Abstract
The invention belongs to the composite rubber asphalt technical field. The compositions (by weight portion) of the composite modified rubber asphalt of the invention are: 100 weight portions of asphalt, 20 to 40 weight portions of 10-to-60-mesh tyre rubber powder, and 3 to 10 percent of tissuemat E against the weight of the asphalt. The composite modified rubber asphalt of the invention, compared with common rubber asphalt, has a better high temperature property due to a higher softening point and good construction performance due to a lower viscosity at 177 DEG C.
Description
Technical field
The invention belongs to a kind of compound rubber asphalt technical field.
Background technology
According to the definition of U.S. material with test association criterion (ASTMD 6114-97), rubber asphalt is meant the modifying asphalt agglutinate that the tyre rubber powder of content more than 15% (more than 180 ℃) and the reaction of pitch swelling under the high temperature and the condition of fully mixing and stirring obtain, because the rubber grain volume ratio can reach 40% after the swelling, rubber asphalt and compound thereof can both manifest the characteristic of vulcanized rubber, the low-temperature deformation ability, the road surface is improved in the snappiness of the following temperature of normal temperature, adding the transmission of tire resistance of aging, is unusual ideal long lifetime, the cracking resistance bituminous material.And, compare the SBS modifying asphalt and have cost advantage owing to adopt the recovery tire as material modified.But also there is deficiency in the rubber asphalt of scrap tire rubber prescription on high-temperature stability, under road traffic transfinites the situation that also is difficult to avoid, can influence rubber asphalt in heavy duty, traffic trunk main and the geographic application of high temperature.In addition, because the rubber asphalt volume that adds is higher, rubber asphalt is excessive 177 ℃ of following viscosity, and workability is bad.
Summary of the invention
Purpose of the present invention just provides a kind of new compound rubber asphalt, and the viscosity of this kind rubber asphalt significantly reduces, and has improved the workability of existing rubber asphalt etc.
The present inventor finds, by adding polyethylene wax, can improve the high-temperature stability of rubber asphalt, can also significantly reduce the viscosity of rubber asphalt simultaneously, has remedied the most important two aspect shortcomings of rubber asphalt just.
Therefore, the concrete technical scheme that the present invention taked is:
A kind of composite modified rubber asphalt, its component contains: the polyethylene wax of 100 parts of pitches, 10-60 order tyre rubber powder 20-40 part, pitch weight 3.0%-10%.
The preferred 20-40 purpose of above-mentioned tyre rubber powder tyre rubber powder.
Above-mentioned polyethylene wax content is preferably the 4-8% of pitch weight, and molecular-weight average is 500-15000, and softening temperature is at 90-160 ℃.
Beneficial effect of the present invention: compound rubber asphalt softening temperature of the present invention is than General Purpose Rubber pitch softening point height, and showing has better high-temperature behavior; 177 ℃ of viscosity are low than General Purpose Rubber pitch, and showing has workability preferably.
Embodiment
In the asphalt quality is per-cent, the tyre rubber powder of 20-30% is joined in the pitch, under 180 ℃ of temperature, stir and reacted 45 minutes, rubber is the powder after reclaiming the truck tire fragmentation and removing steel wire and fiber, the powder granularity is the 20-40 order, and the average out to particle diameter is 20 orders, and rubber hydrocarbon content is 60%, the acetone extract is 7%, and ash oontent is 8%; Pitch is No. 70 bi tumenf orr oads in the East Sea.The polyethylene wax that adds pitch weight 3-10% then continues to stir 30 minutes, makes compound rubber asphalt.Raw material and the proportioning of each embodiment see Table one.
Table one
| Component | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Pitch | 100 | 100 | 100 | 100 |
| Polyethylene wax | 2 | 3 | 4 | 5 |
| Tyre rubber powder | 20 | 23 | 26 | 4 |
The prepared rubber asphalt of each embodiment is carried out performance test.Penetration degree, softening temperature are pressed the method test of GB/T 4509 and GB/T4507 regulation respectively, and 177 ℃ of viscosity tests are undertaken by the method T 0620 that stipulates among the industry standard JTJ of the Ministry of Communications 052 " highway engineering pitch and asphalt testing regulation ".The results are shown in Table two.
Table two
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Penetration degree (25 ℃), 1/10mm | 45 | 40 | 35 | 30 |
| Softening temperature, ℃ | 54 | 69 | 74 | 85 |
| Viscosity (177 ℃), Pa.S | 1.7 | 2.0 | 2.1 | 2.9 |
By above detected result as seen, compound rubber asphalt softening temperature of the present invention is than General Purpose Rubber pitch softening point height, and showing has better high-temperature behavior; 177 ℃ of viscosity are low than General Purpose Rubber pitch, and showing has workability preferably.
Pass through experimental test, find to add the rubber asphalt cement formed mixed material voidage reduction under the same conditions of polyethylene wax, show that its workability improves, rubber-asphalt mixture wheel tracking test dynamic stability also increases gradually with the increase of polyethylene wax simultaneously, shows that its high-temperature stability obtains to improve.
Claims (3)
1. composite modified rubber asphalt, its component contains: the polyethylene wax of 100 parts of pitches, 10-60 order tyre rubber powder 20-40 part, pitch weight 3.0%-10%.
2. as the said composite modified rubber asphalt of claim 1, it is characterized in that: said tyre rubber powder is the 20-40 order.
3. as the said composite modified rubber asphalt of claim 1, it is characterized in that: said polyethylene wax content is the 4-8% of pitch weight, and molecular-weight average is 500-15000, and softening temperature is at 90-160 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101476839A CN101205390A (en) | 2006-12-21 | 2006-12-21 | Compound modified rubber asphalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101476839A CN101205390A (en) | 2006-12-21 | 2006-12-21 | Compound modified rubber asphalt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101205390A true CN101205390A (en) | 2008-06-25 |
Family
ID=39565878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101476839A Pending CN101205390A (en) | 2006-12-21 | 2006-12-21 | Compound modified rubber asphalt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101205390A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396669A (en) * | 2013-07-09 | 2013-11-20 | 杨林江 | Microwave desulfurated and cracked waste tyre rubber powder composite modified asphalt and preparation method thereof |
| CN103468005A (en) * | 2013-07-09 | 2013-12-25 | 杨林江 | Modified low-viscosity rubber asphalt and preparation method thereof |
| CN103708771A (en) * | 2013-12-10 | 2014-04-09 | 柳州博泽科技有限公司 | Composite modified rubber asphalt mixture and preparation method thereof |
| CN104312176A (en) * | 2014-11-05 | 2015-01-28 | 吴江华威特种油有限公司 | Modified asphalt |
| CN108779398A (en) * | 2016-02-13 | 2018-11-09 | 绿色颂歌再生科技有限公司 | Polymer modified asphalt with wax additive |
| US10870739B2 (en) | 2016-03-24 | 2020-12-22 | Greenmantra Recycling Technologies Ltd. | Wax as a melt flow modifier and processing aid for polymers |
| US11072693B2 (en) | 2015-12-30 | 2021-07-27 | Greenmantra Recycling Technologies Ltd. | Reactor for continuously treating polymeric material |
| US11072676B2 (en) | 2016-09-29 | 2021-07-27 | Greenmantra Recycling Technologies Ltd. | Reactor for treating polystyrene material |
-
2006
- 2006-12-21 CN CNA2006101476839A patent/CN101205390A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103468005A (en) * | 2013-07-09 | 2013-12-25 | 杨林江 | Modified low-viscosity rubber asphalt and preparation method thereof |
| CN103468005B (en) * | 2013-07-09 | 2015-09-23 | 杨林江 | A kind of modification low-viscosity rubber asphalt and preparation method thereof |
| CN103396669B (en) * | 2013-07-09 | 2016-08-10 | 杨林江 | Microwave desulfurization cracking rubber powder of waste tire composite modified asphalt and preparation method thereof |
| CN103396669A (en) * | 2013-07-09 | 2013-11-20 | 杨林江 | Microwave desulfurated and cracked waste tyre rubber powder composite modified asphalt and preparation method thereof |
| CN103708771A (en) * | 2013-12-10 | 2014-04-09 | 柳州博泽科技有限公司 | Composite modified rubber asphalt mixture and preparation method thereof |
| CN104312176A (en) * | 2014-11-05 | 2015-01-28 | 吴江华威特种油有限公司 | Modified asphalt |
| US11072693B2 (en) | 2015-12-30 | 2021-07-27 | Greenmantra Recycling Technologies Ltd. | Reactor for continuously treating polymeric material |
| CN108779398A (en) * | 2016-02-13 | 2018-11-09 | 绿色颂歌再生科技有限公司 | Polymer modified asphalt with wax additive |
| CN108779398B (en) * | 2016-02-13 | 2022-03-01 | 绿色颂歌再生科技有限公司 | Polymer modified asphalt with wax additive |
| US11279811B2 (en) | 2016-02-13 | 2022-03-22 | Greenmantra Recycling Technologies Ltd. | Polymer-modified asphalt with wax additive |
| US10870739B2 (en) | 2016-03-24 | 2020-12-22 | Greenmantra Recycling Technologies Ltd. | Wax as a melt flow modifier and processing aid for polymers |
| US11987672B2 (en) | 2016-03-24 | 2024-05-21 | Greenmantra Recycling Technologies Ltd. | Wax as a melt flow modifier and processing aid for polymers |
| US11072676B2 (en) | 2016-09-29 | 2021-07-27 | Greenmantra Recycling Technologies Ltd. | Reactor for treating polystyrene material |
| US11859036B2 (en) | 2016-09-29 | 2024-01-02 | Greenmantra Recycling Technologies Ltd. | Reactor for treating polystyrene material |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080625 |