CN101205381A - Novel modified asphalt - Google Patents
Novel modified asphalt Download PDFInfo
- Publication number
- CN101205381A CN101205381A CNA2006101475944A CN200610147594A CN101205381A CN 101205381 A CN101205381 A CN 101205381A CN A2006101475944 A CNA2006101475944 A CN A2006101475944A CN 200610147594 A CN200610147594 A CN 200610147594A CN 101205381 A CN101205381 A CN 101205381A
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- asphalt
- modified asphalt
- novel modified
- rubber
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Abstract
The invention discloses novel modified asphalt, which is characterized in that the novel modified asphalt comprises the following compositions by weight portion: 100 weight portions of asphalt, 25 to 35 weigh portions of tyre rubber, 0.5 to 2 weight portions of coupling agents and 5 to 20 portions by weight of aromatic. The novel modified asphalt of the invention, which is effectively improved in terms of asphalt property, is suited to paving road surfaces, with long service life and less further maintenance cost. In addition, the novel rubber asphalt is simple in production process, easy to operate and low in cost, with the capacity of reusing waste tyre rubber.
Description
Technical field
The present invention relates to a kind of novel modified asphalt.
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 novel modified asphalt 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 novel modified asphalt is characterized in that, is made of pitch 100 weight parts by weight following component; Rubber for tire 25-35 weight part, coupling agent 0.5-2 weight part, aromatic series tackifying resin 5-20 weight part.
Wherein, described pitch is petroleum pitch.
Wherein, described rubber is rubber for tire.
Novel modified rubber among the present invention can effectively improve the bituminous performance, is fit to the laying road road surface, and long service life has reduced follow-up maintenance cost.And this modifying asphalt production technique is simple, easy handling, and cost is low.And can use rubber for tire, realize refuse reclamation.
Embodiment
Below in conjunction with specific embodiment component of the present invention is described further:
Embodiment 1, pitch 100 weight parts; Rubber for tire 25 weight parts, coupling agent 0.5 weight part, aromatic series tackifying resin 5 weight parts.
Pitch is added in the stirred pot, add rubber powder, coupling agent and aromatic series tackifying resin down, fully mixed 1 hour at 220 ℃.
Embodiment 2, are made of petroleum pitch 100 weight parts by weight following component; Rubber for tire 30 weight parts, coupling agent 1.5 weight parts, aromatic series tackifying resin 15 weight parts.
Production method is identical with embodiment 1.
Embodiment 3, are made of petroleum pitch 100 weight parts by weight following component; Rubber for tire 30 weight parts, coupling agent 2 weight parts, aromatic series tackifying resin 20 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 novel modified asphalt is characterized in that, is made of pitch 100 weight parts by weight following component; Rubber for tire 25-35 weight part, coupling agent 0.5-2 weight part, aromatic series tackifying resin 5-20 weight part.
2. novel modified asphalt according to claim 1 is characterized in that, described pitch is petroleum pitch.
3. novel modified asphalt according to claim 1 is characterized in that, described rubber is rubber for tire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101475944A CN101205381A (en) | 2006-12-21 | 2006-12-21 | Novel modified asphalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101475944A CN101205381A (en) | 2006-12-21 | 2006-12-21 | Novel modified asphalt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101205381A true CN101205381A (en) | 2008-06-25 |
Family
ID=39565869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101475944A Pending CN101205381A (en) | 2006-12-21 | 2006-12-21 | Novel modified asphalt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101205381A (en) |
-
2006
- 2006-12-21 CN CNA2006101475944A patent/CN101205381A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |