CN101275027A - Modified rubber asphalt - Google Patents
Modified rubber asphalt Download PDFInfo
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- CN101275027A CN101275027A CNA2007100390233A CN200710039023A CN101275027A CN 101275027 A CN101275027 A CN 101275027A CN A2007100390233 A CNA2007100390233 A CN A2007100390233A CN 200710039023 A CN200710039023 A CN 200710039023A CN 101275027 A CN101275027 A CN 101275027A
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Abstract
The invention discloses a modified rubber pitch, which comprises the following components according to parts by weight: 100 portions of pitch, 25 to 35 portions of rubber powder, and 10 to 15 portions of fiber. The modified pitch of the invention has the advantages of simple production technology, easy operation and low cost, can effectively improve the property of pitch and be suitable for roadway paving, has long service life, and reduce the subsequent maintenance expenses.
Description
Technical field
The present invention relates to a kind of rubber modified bitumen.
Background technology
Bituminous pavement generally is made up of with gathering materials pitch.The use on oxidation, weather condition and the road surface of bituminous cement between its usage period is particularly used through heavy load, has caused the road surface to be degenerated along with the past of time.For example, the road surface is shunk repeatedly owing to temperature variation and has been caused the road surface to form vertical crackle during the night in winter of cold, is called as cold fracture.Bituminous cement becomes too soft during the summer of sweltering heat, caused road surface tension set under heavy loading repeatedly, is called " rut ".In addition, it is tired that the result of successive mechanical stress is that the road surface becomes, and caused forming the crackle as crocodile skin, is called as repeated stress failure.
But the bituminous wax content is higher, and the road surface of causing asphalt paving is easily softening when high temperature, produce pile-up, permeable, form phenomenons such as reflection crack, surface deformation, a large amount of maintenance of surface expenses is had to drop in the havoc road surface therefore.Proposed multiple in the prior art to the pitch method of modification in addition.Chinese patent application 90104833.X (publication number is CN1058412A) has disclosed a kind of modifying asphalt that machinery is extruded the clad metal pipeline that is used for, and its main component is byerlyte, Atactic Polypropelene, short glass fiber, regenerated rubber, talcum powder and linking agent etc.Make miscible crosslinked this modifying asphalt that obtains of above-mentioned substance by physics, chemical process.Do not provide the performance of this modifying asphalt in the document.The softening temperature of modifying asphalt of the prior art still remains to be improved, to satisfy the needs of pavement asphalt better.
The method of polymer-modified asphalt and production polymer-modified asphalt is known in the present technique field.Polymer, for example thermoplastic elastomer in conjunction with very extensive, is used to improve its intensity and performance in pitch.It also is known adding the stability that sulphur can improve it in polymer one bituminous composition.It is generally acknowledged, with sulfide and polysulfide key Chemical bond, can strengthen and quicken polymer one bituminous Cheng Jian and sulfidation like this between sulphur and polymer and the pitch.Promotor, for example sulphur can add Cheng Jian and the sulfuration that is used to strengthen in the polymer one pitch system between polymer and the pitch to.Multi-form sulphur promotor, for example elementary sulfur comprises alkyl polysulfide with the coupling agent that provides sulphur, dithiocar-bamate, thiophosphoric anhydride, thiuram, thiazole derivative, 4,4 ' one dithiomorpholine may be used to polymer pitch system.Sulphur can combine with polymer and pitch by variety of way, typically comprises behind polymer and the bituminous miscellany stirring certain hour, and sulphur is added in polymer and the bituminous miscellany with the form of simple substance or the form of coupling agent.Perhaps, also can carry out pre-treatment with sulphur to polymer earlier, then the polymer of sulphuring treatment be added in the pitch of fusing.
Summary of the invention
The objective of the invention is provides a kind of rubber modified bitumen in order to solve shortcoming of the prior art.
For realizing above purpose, the present invention is achieved through the following technical solutions:
A kind of rubber modified bitumen is characterized in that, is made of pitch 100 weight parts by weight following component; Rubber powder 25-35 weight part, fiber 10-15 weight part.
Wherein, described rubber is using rubber powder of waste tire or styrene-butadiene rubber(SBR).
Modifying asphalt among the present invention, production technique is simple, easy handling, cost is low.Can effectively improve the bituminous performance, be fit to the laying road road surface, shelf life is long, has reduced follow-up maintenance cost.
Embodiment
The present invention will be further described below in conjunction with specific embodiment:
Embodiment 1, and a kind of rubber modified bitumen is made of by weight following component, pitch 100 weight parts; Using rubber powder of waste tire 25 weight parts, fiber 10 weight parts.
Pitch is added in the stirred pot, add tyre rubber powder and fiber down, fully mix at 220 ℃.
Embodiment 2, are made of pitch 100 weight parts by weight following component; Styrene butadiene rubber powder 25 weight parts, fiber 15 weight parts.
Production method is identical with embodiment 1.
Embodiment 3, are made of pitch 100 weight parts by weight following component; Using rubber powder of waste tire 35 weight parts, fiber 15 weight parts.
Production method is identical with embodiment 1.
Embodiment 4, are made of pitch 100 weight parts by weight following component; Using rubber powder of waste tire 30 weight parts, fiber 12 weight parts.
Production method is identical with embodiment 1.
Embodiment 5, are made of pitch 100 weight parts by weight following component; Styrene butadiene rubber powder 30 weight parts, fiber 10 weight parts.
Production method is identical with embodiment 1.
The foregoing description only is used for that the present invention will be described, does not constitute the restriction to the claim scope, and other alternative means that it may occur to persons skilled in the art that are all in claim scope of the present invention.
Claims (3)
1. a rubber modified bitumen is characterized in that, is made of pitch 100 weight parts by weight following component; Rubber powder 25-35 weight part, fiber 10-15 weight part.
2. rubber modified bitumen according to claim 1 is characterized in that, described rubber is using rubber powder of waste tire.
3. rubber modified bitumen according to claim 1 is characterized in that, described rubber is styrene-butadiene rubber(SBR).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100390233A CN101275027A (en) | 2007-03-30 | 2007-03-30 | Modified rubber asphalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100390233A CN101275027A (en) | 2007-03-30 | 2007-03-30 | Modified rubber asphalt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101275027A true CN101275027A (en) | 2008-10-01 |
Family
ID=39994903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100390233A Withdrawn CN101275027A (en) | 2007-03-30 | 2007-03-30 | Modified rubber asphalt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101275027A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109627794A (en) * | 2018-12-10 | 2019-04-16 | 江苏东道交通科技集团有限公司 | A kind of rubber modified bitumen and preparation method thereof |
| CN110105778A (en) * | 2019-04-12 | 2019-08-09 | 重庆市市政设计研究院 | Nanocomposite modified pitch, preparation method and bituminous concrete |
| CN116082852A (en) * | 2023-02-15 | 2023-05-09 | 苏州东道工程科技有限公司 | Rubber asphalt production process based on junked tires |
-
2007
- 2007-03-30 CN CNA2007100390233A patent/CN101275027A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109627794A (en) * | 2018-12-10 | 2019-04-16 | 江苏东道交通科技集团有限公司 | A kind of rubber modified bitumen and preparation method thereof |
| CN109627794B (en) * | 2018-12-10 | 2021-05-14 | 江苏东道交通科技集团有限公司 | Modified rubber asphalt and preparation method thereof |
| CN110105778A (en) * | 2019-04-12 | 2019-08-09 | 重庆市市政设计研究院 | Nanocomposite modified pitch, preparation method and bituminous concrete |
| CN116082852A (en) * | 2023-02-15 | 2023-05-09 | 苏州东道工程科技有限公司 | Rubber asphalt production process based on junked tires |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |