CN101781469B - Polymer composite modified asphalt - Google Patents
Polymer composite modified asphalt Download PDFInfo
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- CN101781469B CN101781469B CN2009101918147A CN200910191814A CN101781469B CN 101781469 B CN101781469 B CN 101781469B CN 2009101918147 A CN2009101918147 A CN 2009101918147A CN 200910191814 A CN200910191814 A CN 200910191814A CN 101781469 B CN101781469 B CN 101781469B
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Abstract
The invention discloses polymer composite modified asphalt, and a material for paving roads, bridges and tunnels. The asphalt comprises the following components by mass parts: 100 parts of matrix asphalt, 1 to 20 parts of butadiene styrene rubber, 5 to 30 parts of styrene-butadiene-styrene block copolymer or styrene-isoprene-styrene block copolymer SIS, 1 to 10 parts of plasticizer, 0.1 to 5 parts of stabilizing agent and 1 to 20 parts of high-temperature viscosity breaking agent. The polymer composite modified asphalt has the characteristics of reducing a construction temperature of a pouring asphalt mixture, reducing the ageing of the mixture and effectively improving low-temperature cracking resistance, high-temperature stability and fatigue property of the pouring asphalt mixture and the like, along with relatively low viscosity at a high temperature.
Description
Technical field
The present invention relates to road, bridge and tunnel pavement and use material, especially a kind of production formula of polymer composite modified asphalt.
Technical background
Pouring asphalt concrete, former G u β by name, former is the meaning in " river ", amplifies to be " building trickling ".Its implication pouring asphalt concrete has flowability, and pouring type paves, and need not roll.Pouring asphalt concrete originates from Europe the earliest, Germany's exploitation pouring asphalt concrete that began one's study in 1917, and nineteen twenty-nine is applied to the Sudan's Nile bridge engineering of mating formation.The characteristics that pouring asphalt concrete has breeze content high (20～30%), asphalt content high (7～10%), mixes and stirs temperature height (220～240 ℃) " three height ", this constructional feature have determined that pouring asphalt concrete has that dense water is good, globality is strong, tired cracking resistance and accompany or follow the performance characteristics that deformability is good, weather resistance is excellent.Therefore, be applied at home and abroad a large amount of special engineering of mating formation.
Can know from the general introduction of pouring asphalt concrete; It has the characteristics of " three height "; Therefore pouring asphalt concrete is actually a kind of coarse aggregate and is suspended in the bituminous concrete that forms in the asphalt cement; Its intensity mainly relies on the intensity of asphalt cement itself and the frictional force between asphalt cement and the coarse aggregate, thereby its high temperature stability performance mainly depends on the high-temperature behavior of asphalt cement.The high-temperature behavior that improves asphalt cement can realize with the method that increases Ratio of filler bitumen through increasing pitch hardness; Yet find that in shop experiment and entity project the undue pitch hardness that improves certainly will make the viscosity of asphalt cement increase with the increase Ratio of filler bitumen, reduces the workability of pouring asphalt concrete.
Summary of the invention
The objective of the invention is to solve the problem in the pouring asphalt concrete application; Provide a kind of high-performance practical polymer composite modified asphalt; Compare with existing modifying asphalt in the market; This modifying asphalt at high temperature has lower viscosity, can reduce the construction temperature of pouring asphalt compound; Reduce the aging of asphalt; Can effectively improve the technical characterstics such as anti-low-temperature cracking, high-temperature stability and chronic fatigue performance of asphalt.
The present invention is made up of matrix pitch, styrene-butadiene rubber(SBR), styrene-butadiene-styrene block copolymer or SIS SIS, softening agent, stablizer, high-temperature viscosity reducer, counts by weight:
100 parts of matrix pitches,
1～20 part in styrene-butadiene rubber(SBR),
5～30 parts of styrene-butadiene-styrene block copolymer or SIS SIS,
1～10 part in softening agent,
0.1～5 part of stablizer,
1～20 part of high-temperature viscosity reducer.
The present invention, matrix pitch is that road is with straight run 70# or 50# matrix pitch; Styrene-butadiene rubber(SBR) is oil-extended styrene-butadiene rubber; Softening agent is Viscotrol C and DOP, and the ratio of Viscotrol C and DOP is 1: 5～5: 1; Stablizer is sulphur and tetramethylthiuram disulfide, and the ratio of sulphur and tetramethylthiuram disulfide is 1: 4～4: 1; High-temperature viscosity reducer is D-pHPG and synthetic paraffin, and the ratio of D-pHPG and synthetic paraffin is: 1: 10～10: 1.
Styrene-butadiene rubber(SBR) mainly act as and improves bituminous low-temperature performance and fatigue property among the present invention; Styrene-butadiene-styrene block copolymer or SIS SIS mainly act as and improve bituminous high temperature and constant temperature performance; High-temperature viscosity reducer mainly act as and reduces the modifying asphalt high temperature viscosity and improve high-temperature behavior; Softening agent mainly act as and improves bitumen construction performance and fatigue property; Stablizer mainly solves bituminous segregation problem.
The present invention fills a prescription rationally, technology is simple; Has at high temperature lower viscosity; Can reduce the construction temperature of pouring asphalt compound, reduce the aging of compound, effectively improve the low temperature anti-cracking performance and the characteristics such as high temperature stability performance and fatigue property of pouring asphalt compound.
Embodiment
Further specify the present invention below in conjunction with embodiment.
Adopt the proportioning of following table to carry out the enforcement of polymer composite modified asphalt.
Table 1 material is formed table
| The starting material title | Specifications and models | Quality Kg |
| Matrix pitch | SK?70# | 1000 |
| Styrene-butadiene rubber(SBR) | Oil-extended styrene-butadiene rubber | 30 |
| Styrene-butadiene-styrene block copolymer | SBS | 80 |
| Softening agent | DOP | 20 |
| Softening agent | Viscotrol C | 10 |
| High-temperature viscosity reducer | D-pHPG | 20 |
| High-temperature viscosity reducer | Synthetic paraffin | 25 |
| Stablizer | Sulphur | 1.0 |
| Stablizer | Tetramethylthiuram disulfide | 2.0 |
Its technology: matrix pitch is heated to 160～170 ℃, injects reaction kettle, add styrene-butadiene rubber(SBR), TPR, softening agent, high-temperature viscosity reducer, stablizer successively, melting expands stirs 30～60min, gets final product for 2～6 times with the colloidal mill high speed shear.
Performance index according to the polymer composite modified asphalt of present embodiment production see the following form
The SHRP test result of polymer composite modified asphalt sees the following form
The PT result of pouring asphalt concrete GA10 such as following table
| Test subject | Polymer composite modified asphalt | Common modifying asphalt | Index request |
| Mix and stir temperature ℃ | 200 | 240 | - |
| Mobile s | 8.2 | 11.8 | ＜50 |
| Pile penetration (60 ℃) mm | 1.78 | 1.75 | ＜4.00 |
| Pile penetration increment (60 ℃) mm | 0.26 | 0.19 | ＜0.40 |
| Maximum flexural-tensile strain (10 ℃) μ ε | 8846 | 7279 | ＞8000 |
| Bending strength (10 ℃), MPa | 17.5 | 15.7 | - |
| Stiffness modulus (10 ℃), MPa | 1999.6 | 2159.3 | - |
| Fatigue lifetime (800 μ ε) (ten thousand times) | ＞100 | 60 | ＞50 |
Annotate: the low-temperature bending test sample dimensions is 300 * 100 * 50mm, fatigue test sample dimensions 50.8mm * 63.5mm * 381mm
See from the test result of above several tables; Each item performance index of polymer composite modified asphalt all can satisfy the technical requirements of pouring asphalt concrete, and the low-temperature performance and the more common modifying asphalt of fatigue property of polymer composite modified asphalt pouring asphalt concrete have obtained very big improvement simultaneously.
Claims (1)
1. polymer composite modified asphalt; Form by matrix pitch, styrene-butadiene rubber(SBR), styrene-butadiene-styrene block copolymer or SIS SIS, softening agent, stablizer, high-temperature viscosity reducer, it is characterized in that forming and count by weight:
100 parts of matrix pitches,
1～20 part in styrene-butadiene rubber(SBR),
5～30 parts of styrene-butadiene-styrene block copolymer or SIS SIS,
1～10 part in softening agent,
0.1～5 part of stablizer,
1～20 part of high-temperature viscosity reducer,
Wherein, described matrix pitch is that road is with straight run 70# matrix pitch or 50# matrix pitch; Described styrene-butadiene rubber(SBR) is oil-extended styrene-butadiene rubber; Described softening agent is Viscotrol C and DOP, and the ratio of Viscotrol C and DOP is 1: 5～5: 1; Described stablizer is sulphur and tetramethylthiuram disulfide, and the ratio of sulphur and tetramethylthiuram disulfide is 1: 4～4: 1; Described high-temperature viscosity reducer is D-pHPG and synthetic paraffin, and the ratio of D-pHPG and synthetic paraffin is: 1: 10～10: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101918147A CN101781469B (en) | 2009-12-08 | 2009-12-08 | Polymer composite modified asphalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101918147A CN101781469B (en) | 2009-12-08 | 2009-12-08 | Polymer composite modified asphalt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101781469A CN101781469A (en) | 2010-07-21 |
| CN101781469B true CN101781469B (en) | 2012-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101918147A Active CN101781469B (en) | 2009-12-08 | 2009-12-08 | Polymer composite modified asphalt |
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Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408734B (en) * | 2011-10-11 | 2013-02-13 | 重庆市智翔铺道技术工程有限公司 | High-elastic modified asphalt and preparation method thereof |
| CN102618047A (en) * | 2012-03-31 | 2012-08-01 | 英达热再生有限公司 | Universal asphalt performance enhancing agent and preparation method thereof |
| CN102898851A (en) * | 2012-11-12 | 2013-01-30 | 天津市恒悦化工有限公司 | Styrene butadiene styrene (SBS) high-performance modified asphalt and preparation method thereof |
| CN103013145B (en) * | 2012-12-24 | 2015-02-04 | 武汉理工大学 | Preparation method of anti-aging and low-temperature reflection cracking resistant bitumen stress absorption layer |
| CN105038279B (en) * | 2015-09-07 | 2017-05-10 | 重庆市智翔铺道技术工程有限公司 | Modified asphalt and preparing method thereof |
| CN105603771B (en) * | 2015-12-21 | 2018-04-03 | 潍坊市宏源防水材料有限公司 | A kind of high extension copper tire base root resistant waterproof roll and preparation method thereof |
| CN106192757A (en) * | 2016-02-03 | 2016-12-07 | 重庆市智翔铺道技术工程有限公司 | A kind of paving steel bridge deck method of assembling |
| CN105802261A (en) * | 2016-04-05 | 2016-07-27 | 重庆市智翔铺道技术工程有限公司 | Polymer compound modified asphalt and preparation method thereof |
| CN107523071A (en) * | 2016-06-17 | 2017-12-29 | 中国石油化工股份有限公司 | A kind of warm mix modified pitch, contain its compound and preparation method thereof |
| CN107513278A (en) * | 2016-06-17 | 2017-12-26 | 中国石油化工股份有限公司 | Warm mix modified pitch, contain its compound and preparation method thereof |
| CN108948754A (en) * | 2017-05-17 | 2018-12-07 | 交通运输部公路科学研究所 | A kind of special asphalt, its mixture and application for heavily loaded porous pavement making |
| CN108384260A (en) * | 2018-03-21 | 2018-08-10 | 浙江乔兴建设集团有限公司 | A kind of weatherability improvement pitch and its preparation process, application |
| CN108559290A (en) * | 2018-05-15 | 2018-09-21 | 唐水金 | A kind of Low-viscosity asphalt |
| CN110499034A (en) * | 2019-08-19 | 2019-11-26 | 上海同沥新材料科技有限公司 | A kind of dedicated modified pitch of pouring asphalt concrete and preparation method thereof |
| CN113072817A (en) * | 2021-05-10 | 2021-07-06 | 江阴泰富沥青有限公司 | Epoxy rubber composite modified asphalt and preparation method thereof |
| CN116355428A (en) * | 2023-03-23 | 2023-06-30 | 重庆市智翔铺道技术工程有限公司 | Mineral oil-based asphalt modifier and preparation method thereof |
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