CN103468005B - A kind of modification low-viscosity rubber asphalt and preparation method thereof - Google Patents
A kind of modification low-viscosity rubber asphalt and preparation method thereof Download PDFInfo
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- CN103468005B CN103468005B CN201310288672.2A CN201310288672A CN103468005B CN 103468005 B CN103468005 B CN 103468005B CN 201310288672 A CN201310288672 A CN 201310288672A CN 103468005 B CN103468005 B CN 103468005B
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- 239000010426 asphalt Substances 0.000 title claims abstract description 43
- 238000012986 modification Methods 0.000 title claims abstract description 21
- 230000004048 modification Effects 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000011159 matrix material Substances 0.000 claims abstract description 39
- 239000000843 powder Substances 0.000 claims abstract description 19
- 239000010920 waste tyre Substances 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- -1 Poly Propylene Polymers 0.000 claims description 12
- 239000004743 Polypropylene Substances 0.000 claims description 12
- 229920001155 polypropylene Polymers 0.000 claims description 12
- 239000003607 modifier Substances 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 6
- 230000003028 elevating effect Effects 0.000 claims description 5
- 239000004034 viscosity adjusting agent Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
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Abstract
The invention discloses a kind of modification low-viscosity rubber asphalt and preparation method thereof, wherein, modification low-viscosity rubber asphalt is made up of matrix pitch, using rubber powder of waste tire, reaction forming agent and viscosity modifier, the weight percent of each component is: matrix pitch 65-74 ﹪, using rubber powder of waste tire 18-26 ﹪, reaction forming agent content is the 3-8 ﹪ of matrix pitch weight, and viscosity adjustment agent content is the 2-8 ﹪ of matrix pitch weight.Preparation method is: slowly add using rubber powder of waste tire when matrix pitch being heated to 160 DEG C in matrix pitch intensification tank, be rapidly heated to 185 DEG C, high speed shear adds reaction forming agent after half an hour and viscosity modifier breeds one hour, namely obtains modification low-viscosity rubber asphalt.Present invention reduces rubber asphalt viscosity, improve stability at high temperature of asphalt mixture and workability, stable storing, and preparation method is simple.
Description
Technical field:
The present invention relates to pavement construction material technical field, relate in particular to a kind of rubber modified bitumen and preparation method thereof.
Background technology:
Economy develops rapidly in recent years, newly-built a large amount of motorway, and consequent junked tire gets more and more, and junked tire is stacked and occupied a large amount of spaces and have glue stink, becomes the important component part of current noxious waste pollution.Rubber asphalt is a kind of modifying asphalt agglutinate of efficient, energy-saving and environmental protection, but the research application through decades finds, in use there are some drawbacks in traditional rubber pitch, its construction workability and storage stability poor, and in construction process, environmental pollution is more serious.Reaction forming agent and viscosity modifier composite modified rubber asphalt are a kind of novel rubber asphalts, add in Sasobit and Poly Propylene Wax to rubber asphalt through series reaction, after high speed shear, fully stir and breed the modified rubber asphalt cement formed after a hour.Research is thought, rubber modified bitumen has ageing resistance and anti-fatigue performance, the effect that prolonging service life of pavement, delayed reflex crack, reduction noise etc. are outstanding, and preparation technology's simple and flexible, construction workability is good, and hot storage stability is good, be applicable to various types of bituminous coat project, its popularization is imperative, has responded National Sustainable Development Strategies, is the another direction of current Modified Bitumen Pavement development.
Summary of the invention:
The object of the present invention is to provide a kind of modification low-viscosity rubber asphalt and preparation method thereof, rubber modified bitumen material is the type material of energy-conserving and environment-protective, production technique of the present invention is simple, economic value added is high, its indices all meets the technological standard of rubber asphalt, softening temperature >=58 DEG C, 40<25 DEG C of penetration degree <80, recovery of elasticity >=55 ﹪, 2.0Pa.s < kinematic viscosity < 4.0Pa.s.
Object of the present invention is achieved through the following technical solutions:
A kind of modification low-viscosity rubber asphalt, be made up of matrix pitch, using rubber powder of waste tire, Sha Suobi Depew asphalt modifier and Poly Propylene Wax, the weight percent of each component is: matrix pitch 65-74 ﹪, using rubber powder of waste tire 18-26 ﹪, Sha Suobi Depew asphalt modification agent content is the 3-8 ﹪ of matrix pitch weight, and Poly Propylene Wax content is the 2-8 ﹪ of matrix pitch weight.
Preferred as technique scheme, described matrix pitch is that Korea S import 70# heavily hands over matrix pitch.
Preferred as technique scheme, described using rubber powder of waste tire is 40-80 order oblique radial-ply tyre rubber powder.
Preferred as technique scheme, described Poly Propylene Wax fusing point is 120 DEG C-160 DEG C.
A kind of modification low-viscosity rubber asphalt preparation method of the present invention slowly adds using rubber powder of waste tire when being and matrix pitch being heated to 160 DEG C in matrix pitch intensification tank, adopt device for quickly elevating temperature, in 5 minutes, mixture temperature is risen to 185 DEG C, high speed shear adds the Sha Suobi Depew asphalt modifier that measures after half an hour and Poly Propylene Wax breeds one hour, namely obtains modification low-viscosity rubber asphalt.
Accompanying drawing illustrates:
Below in conjunction with accompanying drawing, the present invention is described further:
Fig. 1 is production technological process of the present invention.
Embodiment:
In order to deepen the understanding of the present invention, below in conjunction with embodiment, the invention will be further described, and this embodiment only for explaining the present invention, does not form limiting the scope of the present invention.
Embodiment 1: in matrix pitch intensification tank by weight percent be 69% Korea S import 70# slowly add the 40-80 order oblique radial-ply tyre rubber powder that weight percent is 23% when heavily handing over matrix pitch to be heated to 160 DEG C, adopt device for quickly elevating temperature, in 5 minutes, mixture temperature is risen to 185 DEG C, the Poly Propylene Wax of high speed shear adds matrix pitch weight 5% Sasobit (Sha Suobi Depew) asphalt modifier and matrix pitch weight 6.6% after half an hour breeds one hour, namely obtains modification low-viscosity rubber asphalt.
Embodiment 2: in matrix pitch intensification tank by weight percent be 72% Korea S import 70# slowly add the 40-80 order oblique radial-ply tyre rubber powder that weight percent is 23% when heavily handing over matrix pitch to be heated to 160 DEG C, adopt device for quickly elevating temperature, in 5 minutes, mixture temperature is risen to 185 DEG C, the Poly Propylene Wax of high speed shear adds matrix pitch weight 4% Sasobit (Sha Suobi Depew) asphalt modifier and matrix pitch weight 3% after half an hour breeds one hour, namely obtains modification low-viscosity rubber asphalt.
Embodiment 3: in matrix pitch intensification tank by weight percent be 73% Korea S import 70# slowly add the 40-80 order oblique radial-ply tyre rubber powder that weight percent is 23% when heavily handing over matrix pitch to be heated to 160 DEG C, adopt device for quickly elevating temperature, in 5 minutes, mixture temperature is risen to 185 DEG C, the Poly Propylene Wax of high speed shear adds matrix pitch weight 3% Sasobit (Sha Suobi Depew) asphalt modifier and matrix pitch weight 2.5% after half an hour breeds one hour, namely obtains modification low-viscosity rubber asphalt.Index is in table 1.
Table 1
| Formulating of recipe | 25 DEG C of penetration degrees | Softening temperature | Recovery of elasticity | 177 DEG C of viscosity |
| (0.1mm) | (℃) | (％) | (pa.s) | |
| 69%70# matrix+23% rubber powder | 54 | 63 | 75 | 1.6 |
| 72%70# matrix+23% rubber powder | 50 | 68 | 83 | 2.3 |
| 73%70# matrix+23% rubber powder | 49 | 72 | 84 | 2.8 |
Adopt the modified rubber asphalt mixture of asphalt content 5.4%, make high-temperature rutting test, low-temperature bending test, indirect tensile test on frozen-thaw and residual stability test-results respectively as table 2.
Table 2
According to the every experimental result in table, illustrate that the properties of modified rubber asphalt mixture all can meet technical requirements.
Claims (6)
1. a modification low-viscosity rubber asphalt, it is characterized in that: be made up of matrix pitch, using rubber powder of waste tire, Sha Suobi Depew asphalt modifier and Poly Propylene Wax, the weight percent of each component is: matrix pitch 65-74 ﹪, using rubber powder of waste tire 18-26 ﹪, Sha Suobi Depew asphalt modification agent content is the 3-8 ﹪ of matrix pitch weight, and Poly Propylene Wax content is the 2-8 ﹪ of matrix pitch weight.
2. the modification low-viscosity rubber asphalt according to claims 1, is characterized in that: described matrix pitch is that Korea S import 70# heavily hands over matrix pitch.
3. the modification low-viscosity rubber asphalt according to claims 1, is characterized in that: described using rubber powder of waste tire is 40-80 order oblique radial-ply tyre rubber powder.
4. the modification low-viscosity rubber asphalt according to claims 1, is characterized in that: described Poly Propylene Wax fusing point is 120 DEG C-160 DEG C.
5. a kind of modification low-viscosity rubber asphalt preparation method according to claim 1, it is characterized in that: when matrix pitch being heated to 160 DEG C in matrix pitch intensification tank, slowly add using rubber powder of waste tire, adopt device for quickly elevating temperature, in 5 minutes, mixture temperature is risen to 185 DEG C, high speed shear adds the Sha Suobi Depew asphalt modifier that measures after half an hour and Poly Propylene Wax breeds one hour, namely obtains modification low-viscosity rubber asphalt.
6. the modification low-viscosity rubber asphalt preparation method according to claims 4, is characterized in that: described matrix pitch is that Korea S import 70# heavily hands over matrix pitch.
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| CN103468005B true CN103468005B (en) | 2015-09-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105885693B (en) * | 2016-03-14 | 2018-05-11 | 北京东方雨虹防水技术股份有限公司 | A kind of uncured rubber asphalt waterproof coating and preparation method thereof, composite of water-proof coiled material |
| CN113444372A (en) * | 2020-03-25 | 2021-09-28 | 白山市乾途科技有限公司 | Low-doping-amount waste tire crumb rubber asphalt and production method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205390A (en) * | 2006-12-21 | 2008-06-25 | 上海群康沥青科技有限公司 | Compound modified rubber asphalt |
| CN101348350A (en) * | 2008-09-12 | 2009-01-21 | 陕西长大博源公路养护科技有限公司 | Waste rubber powder composite modified asphalt and preparation thereof |
| 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 |
| WO2012061579A1 (en) * | 2010-11-03 | 2012-05-10 | Saudi Arabian Oil Company | Sulfur modified asphalt for warm mix applications |
-
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- 2013-07-09 CN CN201310288672.2A patent/CN103468005B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205390A (en) * | 2006-12-21 | 2008-06-25 | 上海群康沥青科技有限公司 | Compound modified rubber asphalt |
| CN101348350A (en) * | 2008-09-12 | 2009-01-21 | 陕西长大博源公路养护科技有限公司 | Waste rubber powder composite modified asphalt and preparation thereof |
| 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 |
| WO2012061579A1 (en) * | 2010-11-03 | 2012-05-10 | Saudi Arabian Oil Company | Sulfur modified asphalt for warm mix applications |
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Effective date of registration: 20190923 Address after: 312044 Lanting Street Industrial Park, Keqiao District, Shaoxing City, Zhejiang Province (Jinjiadian Village, West Bank Jincun) Patentee after: Zhejiang Lanting Construction Group Co., Ltd. Address before: 312044 Lanting Pavilion Industrial Zone, Shaoxing County, Zhejiang City, Shaoxing Province, Zhejiang Lanting Pavilion hi tech Limited by Share Ltd Patentee before: Yang Lin Jiang |
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Effective date of registration: 20200416 Address after: 2 / F, building 3, biweekly resettlement community (phase I), Huashe street, Keqiao District, Shaoxing City, Zhejiang Province Patentee after: Shaoxing Keqiao District Liheng New Material Co., Ltd Address before: 312044 Lanting Street Industrial Park, Keqiao District, Shaoxing City, Zhejiang Province (Jinjiadian Village, West Bank Jincun) Patentee before: Zhejiang Lanting Construction Group Co., Ltd. |
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