CN104877209A - Preparation method of SBS and rock asphalt modified scrap rubber composite material and composite material prepared by preparation method - Google Patents
Preparation method of SBS and rock asphalt modified scrap rubber composite material and composite material prepared by preparation method Download PDFInfo
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- CN104877209A CN104877209A CN201510242799.XA CN201510242799A CN104877209A CN 104877209 A CN104877209 A CN 104877209A CN 201510242799 A CN201510242799 A CN 201510242799A CN 104877209 A CN104877209 A CN 104877209A
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Abstract
The invention discloses a preparation method of an SBS and rock asphalt modified scrap rubber composite material. The needed composite material is obtained by crushing scrap rubber into particles, adding the particles into a stirrer together with SBS and rock asphalt according to a certain proportion, stirring and mixing uniformly, and performing extrusion forming by virtue of an extrusion former at a certain temperature. By adding the scrap rubber particles, the added quantity of SBS is reduced, the raw material cost is reduced, the elastic recovery capability of a road surface is improved, and the high-temperature stability, rut resistance and fatigue resistance of the composite material are enhanced; by adding SBS, the low-temperature resistance of the composite material is improved, and the ageing resistance of the composite material is improved; and by adding rock asphalt, the mixing temperature of the composite material can be reduced, the adhesiveness of the composite material is improved, and then the composite material has the effects of stripping resistance, lasting property, high-temperature rut resistance and the like, so that the service life of a road is prolonged. The composite material has the advantages of the scrap rubber particles, SBS and rock asphalt, and specifically has very great competitiveness when applied to heavy traffics, airport roads and the like in high and cold areas with large diurnal temperature difference.
Description
Technical field
The invention belongs to chemical field, relate to a kind of SBS, the preparation method of waste rubber matrix material of rock asphalt modification and obtained matrix material thereof.
Technical background
In view of the ratio of the medium and heavy goods stock of modern society in communications and transportation composition constantly rises, axle load and the total deadweight of automobile improve constantly.Therefore, domestic road construction, for the quick growth of the demand of high-performance pitch, is mainly reflected in the anti-high and low-temp performance of bituminous highway, ageing resistance, antistripping and resistance to feature of waiting so long.Need to seek the properties-correcting agent of low cost more under the prerequisite ensureing these features or composite modifier reduces road construction cost as far as possible simultaneously.
But the current a large amount of automobile waste old tire generation of combination is increasing and can be used in by the waste rubber grain that fragmentation obtains the various aspects of performance improving pitch as properties-correcting agent using it, so both solved the pollution problem because of damaged tire, the recycle of waste and old resource can be accomplished again, really accomplish Sustainable development.Modifying asphalt the most ripe is in the market SBS modifying asphalt, but its cost is higher; Rock asphalt then can reduce it and mix and stir temperature, improves its adhesivity, and then possesses the effects such as antistripping, durable, high temperature Rut resistance, thus extends Road Service Life.The advantage of comprehensive waste rubber grain, SBS and rock asphalt, prepares a kind of special composite material, can be used for modifying asphalt, also can reduce costs under raising pitch over-all properties prerequisite.
Summary of the invention
The object of the present invention is to provide a kind of SBS, the preparation method of waste rubber matrix material of rock asphalt modification and obtained matrix material thereof.
The present invention is realized by following measure:
A preparation method for the waste rubber regenerated composite material of SBS, rock asphalt modification, is characterized in that, comprise the steps:
A. waste rubber is broken into suitable size particles through the broken line of automatization;
B. waste rubber grain, SBS mix by a certain percentage to add in agitator with rock asphalt and are uniformly mixed;
C. the compound after mixing in agitator is sent in single-lead-screw extruding briquetting machine, at a certain temperature, required matrix material can be obtained after single-lead-screw extruding briquetting machine extrusion molding.
The preparation method of the waste rubber regenerated composite material of described SBS, rock asphalt modification, is characterized in that: step A waste rubber tire is broken into particle diameter 5-8mm size through the broken line of automatization.
The preparation method of the waste rubber regenerated composite material of described SBS, rock asphalt modification, it is characterized in that: the weight ratio of step B waste rubber grain, SBS and rock asphalt is (40-60): (10-15): (20-30), in agitator, whipping temp is no more than 60 DEG C, and churning time is 30 min.
The preparation method of the waste rubber regenerated composite material of described SBS, rock asphalt modification, is characterized in that: the temperature in step C single-lead-screw extruding briquetting machine controls at about 250-270 DEG C.
The matrix material that above-mentioned preparation method obtains.
Beneficial effect of the present invention:
1. reduce SBS addition adding of waste rubber grain, reduce raw materials cost, improve road surface elastic recovery capability, enhance its high-temperature stability, anti-rut behavior and anti-fatigue performance.
Adding of 2.SBS improves its anti-seismic design, and improves ageing resistance.
3. the adding of rock asphalt, can be reduced it and mix and stir temperature, improve its adhesivity, and then possess the effects such as antistripping, durable, high temperature Rut resistance, thus extend Road Service Life.
4. this matrix material possesses very large competitive power at large for day and night temperature and extremely frigid zones Heavy Traffic, airport way etc.
For a better understanding of the present invention, be described by following instance.
Embodiment
Waste rubber grain is broken into 5-8mm size through the broken line of automatization, the waste rubber grain obtained after fragmentation, SBS and rock asphalt are mixed with the ratio of weight ratio=50:13:25 and adds agitator and be uniformly mixed, in agitator, whipping temp is no more than 60 DEG C, churning time is 30 min, at 250-270 DEG C of temperature, required matrix material can be obtained after single-lead-screw extruding briquetting machine extrusion molding.
Matrix pitch is heated 150 DEG C, add load weighted system SBS, rock asphalt modification waste rubber regenerated composite material, mix and stir 40min, after thing to be mixed is fully swelling, obtain composite modified asphalt;
To gather materials and be heated to 170 DEG C, spray into make above composite modified asphalt, at 135 DEG C, mix and stir 40s, obtain composite modified asphalt mixture.
To obtain under different composite material addition composite modified asphalt mixture softening temperature and performance comparison in table 1.
Composite modified asphalt mixture softening temperature and performance comparison under table 1 different composite material addition
| Matrix material consumption (%) | Softening temperature (DEG C) | Rutting depth RD(mm) | Dynamic stability DS(time/mm) |
| 0 | 40 | 2.352 | 2865 |
| 10 | 52 | 2.236 | 3629 |
| 20 | 65 | 2.121 | 5416 |
| 30 | 78 | 1.856 | 6792 |
| 40 | 85 | 1.624 | 7941 |
As can be seen from Table 1, along with meeting increasing of the addition that just comes, its system the raising gradually of composite modified asphalt mixture softening temperature, its rutting depth RD constantly reduces and dynamic stability DS constantly raises, thus matrix material can be described added clearly the anti-rut behavior and resistance to elevated temperatures that enhance composite modified asphalt mixture.
Claims (5)
1. a preparation method for the waste rubber regenerated composite material of SBS, rock asphalt modification, is characterized in that, comprise the steps:
A. waste rubber is broken into suitable size particles through the broken line of automatization;
B. waste rubber grain, SBS mix by a certain percentage to add in agitator with rock asphalt and are uniformly mixed;
C. the compound after mixing in agitator is sent in single-lead-screw extruding briquetting machine, at a certain temperature, required matrix material can be obtained after single-lead-screw extruding briquetting machine extrusion molding.
2. the preparation method of the waste rubber regenerated composite material of SBS as claimed in claim 1, rock asphalt modification, is characterized in that: step A waste rubber tire is broken into particle diameter 5-8mm size through the broken line of automatization.
3. the preparation method of the waste rubber regenerated composite material of SBS as claimed in claim 1, rock asphalt modification, it is characterized in that: the weight ratio of step B waste rubber grain, SBS and rock asphalt is (40-60): (10-15): (20-30), in agitator, whipping temp is no more than 60 DEG C, and churning time is 30 min.
4. the preparation method of the waste rubber regenerated composite material of SBS as claimed in claim 1, rock asphalt modification, is characterized in that: the temperature in step C single-lead-screw extruding briquetting machine controls at about 250-270 DEG C.
5. the matrix material that obtains of the preparation method of the waste rubber regenerated composite material of SBS as claimed in claim 1, rock asphalt modification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510242799.XA CN104877209A (en) | 2015-05-14 | 2015-05-14 | Preparation method of SBS and rock asphalt modified scrap rubber composite material and composite material prepared by preparation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510242799.XA CN104877209A (en) | 2015-05-14 | 2015-05-14 | Preparation method of SBS and rock asphalt modified scrap rubber composite material and composite material prepared by preparation method |
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| CN104877209A true CN104877209A (en) | 2015-09-02 |
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| CN201510242799.XA Pending CN104877209A (en) | 2015-05-14 | 2015-05-14 | Preparation method of SBS and rock asphalt modified scrap rubber composite material and composite material prepared by preparation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108218296A (en) * | 2018-04-12 | 2018-06-29 | 江苏中路工程技术研究院有限公司 | A kind of close water type asphalt of high-strength light and preparation method thereof |
| CN113736273A (en) * | 2021-09-13 | 2021-12-03 | 交通运输部科学研究院 | Buton rock asphalt composite modifier suitable for large-temperature-difference area and preparation method thereof |
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| CN101851426A (en) * | 2010-05-13 | 2010-10-06 | 重庆中交道桥科技有限公司 | High intensity asphalt modifier for cast asphalt concrete and preparation method thereof |
| CN103146207A (en) * | 2013-03-19 | 2013-06-12 | 湖北国创高新材料股份有限公司 | Ultraviolet aging-resistant compound modified asphalt and preparation method thereof |
| CN103613940A (en) * | 2013-11-15 | 2014-03-05 | 同济大学 | Rock asphalt composite modifier as well as preparation method and application thereof |
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2015
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Patent Citations (3)
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| CN101851426A (en) * | 2010-05-13 | 2010-10-06 | 重庆中交道桥科技有限公司 | High intensity asphalt modifier for cast asphalt concrete and preparation method thereof |
| CN103146207A (en) * | 2013-03-19 | 2013-06-12 | 湖北国创高新材料股份有限公司 | Ultraviolet aging-resistant compound modified asphalt and preparation method thereof |
| CN103613940A (en) * | 2013-11-15 | 2014-03-05 | 同济大学 | Rock asphalt composite modifier as well as preparation method and application thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108218296A (en) * | 2018-04-12 | 2018-06-29 | 江苏中路工程技术研究院有限公司 | A kind of close water type asphalt of high-strength light and preparation method thereof |
| CN108218296B (en) * | 2018-04-12 | 2021-03-16 | 江苏中路工程技术研究院有限公司 | Light high-strength water-tight asphalt mixture and preparation method thereof |
| CN113736273A (en) * | 2021-09-13 | 2021-12-03 | 交通运输部科学研究院 | Buton rock asphalt composite modifier suitable for large-temperature-difference area and preparation method thereof |
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Application publication date: 20150902 |