CN102876058B - Composite modified asphalt material applicable to anti-crack layer with pavement structure and preparation method thereof - Google Patents
Composite modified asphalt material applicable to anti-crack layer with pavement structure and preparation method thereof Download PDFInfo
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- CN102876058B CN102876058B CN201210330641.4A CN201210330641A CN102876058B CN 102876058 B CN102876058 B CN 102876058B CN 201210330641 A CN201210330641 A CN 201210330641A CN 102876058 B CN102876058 B CN 102876058B
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- 239000010426 asphalt Substances 0.000 title claims abstract description 50
- 239000002131 composite material Substances 0.000 title claims abstract description 39
- 239000000463 material Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 229920003048 styrene butadiene rubber Polymers 0.000 claims abstract description 42
- 239000000843 powder Substances 0.000 claims abstract description 38
- 229920001971 elastomer Polymers 0.000 claims abstract description 28
- 239000005060 rubber Substances 0.000 claims abstract description 28
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 18
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 18
- QZCLKYGREBVARF-UHFFFAOYSA-N Acetyl tributyl citrate Chemical compound CCCCOC(=O)CC(C(=O)OCCCC)(OC(C)=O)CC(=O)OCCCC QZCLKYGREBVARF-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims description 26
- 239000011159 matrix material Substances 0.000 claims description 22
- 238000012360 testing method Methods 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 8
- 238000010008 shearing Methods 0.000 claims description 7
- 230000008961 swelling Effects 0.000 claims description 7
- 230000035515 penetration Effects 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000010410 layer Substances 0.000 abstract description 17
- 239000004567 concrete Substances 0.000 abstract description 11
- 230000003111 delayed effect Effects 0.000 abstract description 3
- 239000002344 surface layer Substances 0.000 abstract description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 abstract 1
- 238000006477 desulfuration reaction Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 13
- 230000035882 stress Effects 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000011514 reflex Effects 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 230000003245 working effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011210 fiber-reinforced concrete Substances 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011382 roller-compacted concrete Substances 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Abstract
The invention discloses a composite modified asphalt material applicable to an anti-crack layer with a pavement structure and a preparation method of the composite modified asphalt material. The composite modified asphalt comprises the following components by weight: 83.2-87.6 parts of substrate asphalt, 3.1-4.2 parts of thermoplastic styrene butadiene rubber (SBS), 1.3-1.7 parts of powder butadiene styrene rubber (PSBR), 5.3-6.7 parts of desulfuration rubber powder, 1.8-2.5 parts of acetyl tributyl citrate (ATBC), and 0.9-1.7 parts of accelerant, the sum of the parts in weight is 100, the accelerant is rubber filling oil. The composite modified asphalt is applicable to the anti-crack layer with the pavement structure; the anti-crack layer is usually used for a rigid-flexible composite pavement layer for additionally paving asphalt surface layer on a concrete rigid base layer with seams (old concrete pavement), also can be used for semi-rigid base asphalt pavement, so that delay the forming and expanding of reflection cracks can be delayed, the capability of the pavement structure is improved to resist fatigue cracks, the service quality of the pavement structure is improved, and the service life of the pavement structure is prolonged.
Description
Technical field
The invention belongs to road engineering technical field, relate to a kind of composite modified asphalt material that is applicable to pavement structure crack-resistant layer and preparation method thereof.
Background technology
The earlier period damage of China's bituminous pavement is comparatively serious, and often lower than design life, in the urgent need to improving the weather resistance of road engineering, promote China's communications and transportation cause to develop the work-ing life of asphalt pavement of highway faster and betterly.
In recent years, with portland cement concrete (PCC), continuous reinforcement concrete (CRC), roller compacted concrete (RCC), poor concrete (LCC), the dowelled normal concrete of transverse joint (JPC), Steel Fiber Reinforced Concretes (SFRC) etc. are developed rapidly as the composite asphalt pavement of rigid base, also have the highway of much building in early days to face maintenance and upgrading transformation, old cement concrete pavement particularly, also mostly by Laying Asphalt Surface Course, transform, concrete rigid basic unit can improve the bearing capacity of pavement structure greatly, oil mat can effectively improve the comfortableness of driving.Therefore, the composite pavement of rigid base's Laying Asphalt Surface Course has obviously improved the use properties on road surface, has extended the work-ing life on road surface.Because rigid base generally exists seam and crack, if do not take Crack Resistance effectively, will reflex to rapidly surface layer, form reflection crack, greatly affect using character and the life-span on road surface.Reflection crack is also semi-rigid asphalt pavement Major Diseases and the principal element that affects its work-ing life.
In order to solve the problem of reflection crack, mainly take to arrange at present the method for stress absorbing layer and reinforcement class material both at home and abroad, but stress absorbing layer is very high to the requirement of bituminous material performance, common modified asphalt material is difficult to meet the demands, and stress absorbing layer is only applicable to the section that the vertical relative shift of seam is less than 0.06mm, and construction requirement and condition are also higher.Reinforcement class material is mainly glass fiber grid, geotextile, asphalt felt etc., these material counter stresses have certain dissipation role, but it is limited in one's ability to prevent that reflection crack from occurring, if and these materials pave unfairness or the unfairness of original rigid base, can cause the problems such as Compaction of Asphalt Mixture deficiency.Therefore, develop a kind of be applicable to pavement structure crack-resistant layer and high temperature performance all good composite modified asphalt material tool be of great significance.
Summary of the invention
Technical problem to be solved by this invention is a kind of composite modified asphalt material that is applicable to pavement structure crack-resistant layer of development, and this material can play the effect that delayed reflex crack produces and expands, and has good pavement performance.
Another object of the present invention is to provide the preparation technology that can better realize and obtain material of the present invention.
For achieving the above object, technical scheme of the present invention is:
Be applicable to a composite modified asphalt material for pavement structure crack-resistant layer, composed of the following components: the matrix pitch of 83.2 ~ 87.6 mass parts; The thermoplastic styrene-butadiene rubber(SBR) (SBS) of 3.1 ~ 4.2 mass parts; The powder styrene butadiene rubber of 1.3 ~ 1.7 mass parts (PSBR); The devulcanized rubber powder of 5.3 ~ 6.7 mass parts, the tributyl acetylcitrate of 1.8 ~ 2.5 mass parts (ATBC); The promotor of 0.9 ~ 1.7 mass parts, the quality sum of each component is 100, wherein promotor is rubber filling oil.
In the above-mentioned composite modified asphalt material that is applicable to pavement structure crack-resistant layer, it is 60 ~ 80 that described matrix pitch requires the penetration number at 25 ℃, take 0.1mm as unit.
Described thermoplastic styrene-butadiene rubber(SBR) (SBS) is linear structure, and relative molecular weight is 8 ~ 120,000.
Described powder styrene butadiene rubber (PSBR) is white powder, and granularity is 10 ~ 40 orders; Described devulcanized rubber powder is not less than 40 orders.
The above-mentioned composite modified asphalt material preparation technology who is applicable to pavement structure crack-resistant layer, comprise the following steps: by after matrix pitch fusing, add thermoplastic styrene-butadiene rubber(SBR) (SBS) and devulcanized rubber powder and mix, then adding powder styrene butadiene rubber (PSBR), tributyl acetylcitrate (ATBC) and promotor; Through shearing for the first time, grow, obtaining composite modified asphalt material after shearing, swelling for the second time, the temperature of above preparation process is all controlled between 170 ~ 185 ℃.
The step that preparation technology of the present invention is concrete is:
1) matrix pitch of 83.2 ~ 87.6 mass parts is put into the baking oven of 175 ~ 185 ℃, and constant temperature 1 hour;
It is 60 ~ 80 that described matrix pitch requires the penetration number at 25 ℃, take 0.1mm as unit;
2) under temperature is the condition of 170 ~ 180 ℃, in the matrix pitch described in step 1), add the thermoplastic styrene-butadiene rubber(SBR) (SBS) of 3.1 ~ 4.2 mass parts and the devulcanized rubber powder of 5.3 ~ 6.7 mass parts, and uniform stirring 15 ~ 20 minutes;
Described thermoplastic styrene-butadiene rubber(SBR) (SBS) is linear structure, and relative molecular weight is 8 ~ 120,000; Described devulcanized rubber powder is not less than 40 orders;
3) in the temperature range of 170 ~ 180 ℃, to step 2) add the powder styrene butadiene rubber (PSBR) of 1.3 ~ 1.7 mass parts in the mixture of described matrix pitch, thermoplastic styrene-butadiene rubber(SBR) (SBS) and devulcanized rubber powder; The promotor of the tributyl acetylcitrate of 1.8 ~ 2.5 mass parts (ATBC) and 0.9 ~ 1.7 mass parts, and mixture is sheared 30 ~ 40 minutes in high speed shear instrument high speed, rotating speed is 6000 rpms, after having sheared, mixture is put into the baking oven of 175 ~ 185 ℃ and is grown 20 ~ 30 minutes;
Described powder styrene butadiene rubber (PSBR) is white powder, and granularity is 10 ~ 40 orders; Described promotor is rubber filling oil.
4) under temperature is the condition of 170 ~ 180 ℃, full mixture described in step 3) is continued to high speed shear 30 ~ 40 minutes in high speed shear instrument, rotating speed is 5000 rpms, after shearing completes, mixture is put into the baking oven swelling 1 hour of 175 ~ 185 ℃, obtained described composite modified asphalt.
The above-mentioned composite modified asphalt material that is applicable to pavement structure crack-resistant layer, its performance must meet table 1 requirement, and test method is carried out according to < < highway engineering pitch and Asphalt Mixture Experiment rules > > (JTG E20-2011).
Table 1
Attached: wherein PG76 ﹣ 16 finger dynamic shear rheological test failure temperature are not less than 76 ℃; Low-temperature bending beam rheological test invalid temperature is not more than 16 ℃ of ﹣.
Beneficial effect of the present invention is as follows:
The material the present invention relates to is applicable to pavement structure crack-resistant layer, there is good anti-shearing cracking performance and high temperature performance, can eliminate the strangeness of crack tip top oil mat stress, be applicable to the upper Rigid-flexible composite of the road of Laying Asphalt Surface Course of jointed concrete rigid basic unit (old cement concrete pavement), the interlayer of semi-rigid asphalt pavement, generation and the expansion in energy delayed reflex crack, the fatigue lifetime of improving pavement structure.
The composite modified asphalt material the present invention relates to is to carry out choose reasonable and science design according to the principle of control reflection crack.Thermoplastic styrene-butadiene rubber(SBR) (SBS) has obviously improved the high low temperature stability of matrix pitch; Elastic recovery capability, ageing resistance and the high-temperature behavior of composite modified asphalt have been significantly improved adding of devulcanized rubber powder; Adding of powder styrene butadiene rubber (PSBR) and tributyl acetylcitrate (ATBC) significantly improves composite modified asphalt low-temperature ductility and deformability; Adding of promotor rubber filling oil can promote thermoplastic styrene-butadiene rubber(SBR) (SBS) and the dissolving of powder styrene butadiene rubber (PSBR) in matrix pitch, reduce the usage quantity of thermoplastic styrene-butadiene rubber(SBR) (SBS) and powder styrene butadiene rubber (PSBR), and improve the activity of devulcanized rubber powder, strengthen the reaction of devulcanized rubber powder and matrix pitch, devulcanized rubber powder is more easily dispersed in composite modified asphalt.The composite modified asphalt material the present invention relates to has good resistance to cleavage by verification experimental verification, and preparation method is simple, Financial cost is lower, and applicable territorial scope is wide, and more general modified asphalt material has obvious advantage.
China is also by newly-built approximately 3.6 ten thousand kilometers of motorways before 2015, more than 60 ten thousand kilometers of common roads, and also have every year the medium-capital overhauling transformation of nearly ten thousand kilometers of motorways.Therefore, the having a extensive future of this material, potential social and economic benefits is remarkable.
Embodiment:
In order to understand better the present invention, below in conjunction with embodiment, further illustrate content of the present invention, but content of the present invention is not only confined to the following examples.
Embodiment 1:
The matrix pitch that is 71 by the penetration number of 25 ℃ of 83.2 mass parts (China National Offshore Oil Corporation's production) is put into the baking oven 1 hour of 175 ℃; In temperature, be under the condition of 175 ℃, to the thermoplastic styrene-butadiene rubber(SBR) (YH791 that yueyang, hunan Ba Ling petrochemical industry company limited produces that adds 4.2 mass parts in matrix pitch, relative molecular weight is 100,000) and the 40 order devulcanized rubber powder (Sichuan Science and Technology Co., Ltd.'s production) of 6.7 mass parts, and with glass stick uniform stirring 15 minutes; Reduce the temperature to 170 ℃, add the promotor rubber filling oil (production of Hubei Dao Weisi development in science and technology company limited) of the 20 order powder styrene butadiene rubbers (production of Zibo Qiao Long Trade Co., Ltd.) of 1.7 mass parts, the tributyl acetylcitrate of 2.5 mass parts (Jin Jin happy Industrial Co., Ltd. in Shanghai produces) and 1.7 mass parts and mixture is sheared 30 minutes in high speed shear instrument high speed, rotating speed is 6000 rpms, after having sheared, mixture is put into the baking oven of 175 ℃ and is grown 25 minutes; In temperature, be, under the condition of 175 ℃, full mixture to be continued to high speed shear 35 minutes in high speed shear instrument, rotating speed is 5000 rpms, after having sheared, mixture is put into the baking oven swelling 1 hour of 175 ℃, obtains composite modified asphalt.The composite modified asphalt preparing is tested to detection, recording 5 ℃ of ductilities of this composite modified asphalt is 79.6cm, softening temperature is 85.4 ℃, and 60 ℃ of viscositys are 4320Pa s, and 135 ℃ of viscositys are 2.75Pas, recovery of elasticity is 97%, it is 83.6 ℃ that PG is classified as PG82 ﹣ 22(dynamic shear rheological test failure temperature, and low-temperature bending beam rheological test invalid temperature is 22 ℃ of ﹣), after rotating thin film is aging: 5 ℃ of ductilities are 57.5cm, recovery of elasticity 94%, indices all meets the requirement of table 1.
Embodiment 2:
The matrix pitch that is 71 by the penetration number of 25 ℃ of 85.3 mass parts (China National Offshore Oil Corporation's production) is put into the baking oven 1 hour of 175 ℃; In temperature, be under the condition of 175 ℃, to the thermoplastic styrene-butadiene rubber(SBR) (YH791 that yueyang, hunan Ba Ling petrochemical industry company limited produces that adds 3.8 mass parts in matrix pitch, relative molecular weight is 100,000) and the 60 order devulcanized rubber powder (production of Hebei good luck reclaimed rubber factory) of 6.0 mass parts, and with glass stick uniform stirring 15 minutes; Reduce the temperature to 170 ℃, the promotor rubber filling oil (production of rivers and mountains, Shandong macromolecular material company limited) that adds the 30 order powder styrene butadiene rubbers (production of Shandong Gao Shi science, industry and trade company limited) of 1.5 mass parts, the tributyl acetylcitrate (production of Hubei Chu Shengwei Chemical Co., Ltd.) of 2.1 mass parts and 1.3 mass parts, and mixture is sheared 30 minutes in high speed shear instrument high speed, rotating speed is 6000 rpms, after having sheared, mixture is put into the baking oven of 175 ℃ and is grown 25 minutes; In temperature, be, under the condition of 175 ℃, full mixture to be continued to high speed shear 35 minutes in high speed shear instrument, rotating speed is 5000 rpms, after having sheared, mixture is put into the baking oven swelling 1 hour of 175 ℃, obtains composite modified asphalt.The composite modified asphalt preparing is tested to detection, recording 5 ℃ of ductilities of this composite modified asphalt is 73.1cm, softening temperature is 80.3 ℃, and 60 ℃ of viscositys are 3870Pas, and 135 ℃ of viscositys are 2.31Pas, recovery of elasticity is 96%, PG classification PG82 ﹣ 16(dynamic shear rheological test failure temperature is 82.1 ℃, and low-temperature bending beam rheological test invalid temperature is 16 ℃ of ﹣), after rotating thin film is aging: 5 ℃ of ductilities are 52.1cm, recovery of elasticity 91%, indices all meets the requirement of table 1.
Embodiment 3:
The matrix pitch that is 71 by the penetration number of 25 ℃ of 87.6 mass parts (China National Offshore Oil Corporation's production) is put into the baking oven 1 hour of 175 ℃; In temperature, be under the condition of 175 ℃, to the thermoplastic styrene-butadiene rubber(SBR) (YH791 that yueyang, hunan Ba Ling petrochemical industry company limited produces that adds 3.1 mass parts in matrix pitch, relative molecular weight is 100,000) and 80 order devulcanized rubber powder of 5.3 mass parts (the green Global Technology Co., Ltd. in Wuhan produces), and with glass stick uniform stirring 15 minutes; Reduce the temperature to 170 ℃, add the 40 order powder styrene butadiene rubbers (production of Gansu Ning Da petrochemical industry project company limited) of 1.3 mass parts, the tributyl acetylcitrate (production of Wuhan prosperous triangle development in science and technology company limited) of 1.8 mass parts and the promotor rubber filling oil (production of rivers and mountains, Shandong macromolecular material company limited) of 0.9 mass parts, and mixture is sheared 30 minutes in high speed shear instrument high speed, rotating speed is 6000 rpms, after having sheared, mixture is put into the baking oven of 175 ℃ and is grown 25 minutes; In temperature, be, under the condition of 175 ℃, full mixture to be continued to high speed shear 35 minutes in high speed shear instrument, rotating speed is 5000 rpms, after having sheared, mixture is put into the baking oven swelling 1 hour of 175 ℃, obtains composite modified asphalt.The composite modified asphalt preparing is tested to detection, recording 5 ℃ of ductilities of this composite modified asphalt is 68.7cm, softening temperature is 73.8 ℃, and 60 ℃ of viscositys are 3260Pas, and 135 ℃ of viscositys are 1.78Pas, recovery of elasticity is 96%, PG classification PG76 ﹣ 16(dynamic shear rheological test failure temperature is 78.3 ℃, and low-temperature bending beam rheological test invalid temperature is 16 ℃ of ﹣), after rotating thin film is aging: 5 ℃ of ductilities are 47.1cm, recovery of elasticity 91%, indices all meets the requirement of table 1.
Claims (4)
1. be applicable to a composite modified asphalt material for pavement structure crack-resistant layer, composed of the following components: the matrix pitch of 83.2 ~ 87.6 mass parts; The thermoplastic styrene-butadiene rubber(SBR) of 3.1 ~ 4.2 mass parts; The powder styrene butadiene rubber of 1.3 ~ 1.7 mass parts; The devulcanized rubber powder of 5.3 ~ 6.7 mass parts; The tributyl acetylcitrate of 1.8 ~ 2.5 mass parts; The promotor of 0.9 ~ 1.7 mass parts; The quality sum of each component is 100, and described promotor is rubber filling oil; It is 60 ~ 80 that described matrix pitch requires the penetration number at 25 ℃, take 0.1mm as unit; Described thermoplastic styrene-butadiene rubber(SBR) is linear structure, and relative molecular weight is 8 ~ 120,000; Described powder styrene butadiene rubber is white powder, and granularity is 10 ~ 40 orders; Described devulcanized rubber powder is not less than 40 orders; Its performance index of described composite modified asphalt material are: 5 ℃ of ductilities are not less than 65cm, the recovery of elasticity of 25 ℃ is not less than 95%, PG classification and is not less than PG76 ﹣ 16.
2. composite modified asphalt according to claim 1, is characterized in that,
Attached: wherein PG76 ﹣ 16 finger dynamic shear rheological test failure temperature are not less than 76 ℃; Low-temperature bending beam rheological test invalid temperature is not more than 16 ℃ of ﹣.
3. the composite modified asphalt material preparation technology who is applicable to pavement structure crack-resistant layer described in claim 1 or 2, it is characterized in that, comprise the following steps: by after matrix pitch fusing, add thermoplastic styrene-butadiene rubber(SBR) and devulcanized rubber powder and mix, then adding powder styrene butadiene rubber, tributyl acetylcitrate and promotor; Through shearing for the first time, grow, obtaining composite modified asphalt material after shearing, swelling for the second time, the temperature of above preparation process is all controlled between 170 ~ 185 ℃.
4. preparation technology according to claim 3, is characterized in that, comprises the following steps:
1) matrix pitch is put into the baking oven of 175 ~ 185 ℃, and constant temperature 1 hour;
2) under temperature is the condition of 170 ~ 180 ℃, in the matrix pitch described in step 1), add thermoplastic styrene-butadiene rubber(SBR) and devulcanized rubber powder, and uniform stirring 15 ~ 20 minutes;
3) in the temperature range of 170 ~ 180 ℃, to step 2) add powder styrene butadiene rubber, tributyl acetylcitrate and promotor in the mixture of described matrix pitch, thermoplastic styrene-butadiene rubber(SBR) and devulcanized rubber powder, and mixture is sheared 30 ~ 40 minutes in high speed shear instrument high speed, rotating speed is 6000 rpms, after having sheared, mixture is put into the baking oven of 175 ~ 185 ℃ and is grown 20 ~ 30 minutes;
4) under temperature is the condition of 170 ~ 180 ℃, full mixture described in step 3) is continued to high speed shear 30 ~ 40 minutes in high speed shear instrument, rotating speed is 5000 rpms, after shearing completes, mixture is put into the baking oven swelling 1 hour of 175 ~ 185 ℃, obtained described composite modified asphalt.
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| CN105802264B (en) * | 2014-12-14 | 2018-05-29 | 江苏增光复合材料科技有限公司 | A kind of crack resistance type road asphalt and preparation method thereof |
| CN104387782B (en) * | 2014-12-14 | 2016-07-06 | 袁博 | A kind of crack resistance type road asphalt and preparation method thereof |
| CN109486222A (en) * | 2018-11-15 | 2019-03-19 | 刘景章 | A kind of modified pitch and preparation method thereof |
| CN110452618B (en) * | 2019-08-14 | 2021-09-03 | 广东万泓九鼎石油科技有限公司 | Low-density non-cured rubber asphalt waterproof coating and preparation method thereof |
| CN115491176A (en) * | 2022-10-27 | 2022-12-20 | 武汉理工大学 | Induction heating renaturation self-healing asphalt pouring sealant and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1584211A (en) * | 2004-06-09 | 2005-02-23 | 吉林省交通科学研究所 | High-performance road surface fissures cementing materials and preparing process |
| CN101585969A (en) * | 2009-06-10 | 2009-11-25 | 长沙理工大学 | Thermoplastic styrene butadiene rubber+tire glue powder composite modified asphalt and preparation method thereof |
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| US5936015A (en) * | 1998-10-16 | 1999-08-10 | Creanova Inc. | Rubber-modified asphalt paving binder |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1584211A (en) * | 2004-06-09 | 2005-02-23 | 吉林省交通科学研究所 | High-performance road surface fissures cementing materials and preparing process |
| CN101585969A (en) * | 2009-06-10 | 2009-11-25 | 长沙理工大学 | Thermoplastic styrene butadiene rubber+tire glue powder composite modified asphalt and preparation method thereof |
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