CN1229105A - Modified asphalt compounded with waste plastic and waste rubber - Google Patents
Modified asphalt compounded with waste plastic and waste rubber Download PDFInfo
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- CN1229105A CN1229105A CN 99112656 CN99112656A CN1229105A CN 1229105 A CN1229105 A CN 1229105A CN 99112656 CN99112656 CN 99112656 CN 99112656 A CN99112656 A CN 99112656A CN 1229105 A CN1229105 A CN 1229105A
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- waste
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- asphalt
- modified asphalt
- polyethylene
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Abstract
A modified asphalt used for road and bridge engineerings is prepared from waste rubber powder, coal tar, activating agent, polyethylene, polypropylene and asphalt through screening waste plastics, heating asphalt while stirring, addition of waste rubber powder, coal tar, activating agent and polyethylene, high-speed stirring, addition of polypropylene and low-speed stirring for 30 min. The pavement of said modified asphat features high strength, long service life and not being destroyed in summer and winter.
Description
The present invention relates to a kind of material on making bridge floor road surface in the traffic road and bridge engineering.
What at present, the material on making bridge floor road surface solved always in the domestic and international traffic road and bridge engineering is not ideal.The bridge floor laying of roadway needs a large amount of modifying asphalts, but the basic overwhelming majority of crude oil in China is paraffinic base and intermediate base, pitch wax content with these crude refinings is higher, cause the road surface of pitch making softer summer, easily form and push, gather around destructions such as bag, rut, winter is easy to crack, develops into check crack, be full of cracks, disease such as loose gradually.Surface water is penetrated on roadbase and the roadbed by the crack in addition, and the intensity of roadbase such as roadbed is reduced, and the too early generation in road surface destroys, and has influenced the work-ing life on road surface, also rolls up the maintenance expense simultaneously.
The measure of asphalt modification mainly is the method for admixture properties-correcting agent, the kind of properties-correcting agent is a lot, that usually adopts has a waste Crumb rubber; styrene-butadiene rubber(SBR); chloroprene rubber; vinylbenzene-divinyl---styrene block copolymer; ethene---acetate ethylene copolymer; polyethylene; polypropylene etc.; what use as the Beijing Internation Airport is polyethylene; the chloroprene rubber composite modified asphalt; overhead bridge floor vinylbenzene---divinyl---the styrenic block copolymer modification pitch of Hongqiao Airport, Shanghai and part, the modifying asphalt of the data introduction that abroad can retrieve---divinyl---styrene block copolymer that is vinylbenzene; ethene---acetate ethylene copolymer; styrene-butadiene rubber(SBR); polyethylene etc.The major cause that above-mentioned modifying asphalt does not have large-scale popularization to use is, the firstth, in the properties-correcting agent, remove rubber powder and belong to utilization of waste material, outside price is low, all the other are industrial chemicals, cost an arm and a leg, limited applying of they, the cost that therefore reduces properties-correcting agent is the key that modifying asphalt is able to popularization and application.The secondth, the screening of reclaiming plastic waste is another key subject, in the plastic waste that reclaims new LDPE (film grade) is arranged, high density polyethylene(HDPE) is arranged, polyvinyl chloride, polystyrene are arranged, polypropylene, what be suitable for modifying asphalt has new LDPE (film grade), high density polyethylene(HDPE), a polypropylene.Therefore develop a kind of plastic waste, the waste rubber composite modified asphalt material is the new problem of scientific research anxious to be solved both at home and abroad always.
Purpose of the present invention just provides a kind of technology of conceiving science novelty, the corresponding separating plastic chips method of employing, selecting rationally to be suitable for modifying asphalt, uses unique formula, improves the pitch physical and mechanical property, improve the bridge floor pavement strength, increased the functional quality and the life-span on bridge floor road surface, make summer the bridge floor road surface do not form push gather around that the hired car rut destroys, do not produce check crack chap loose disease, the plastic waste that has reduced the maintenance expense on bridge floor road surface, waste rubber composite modified asphalt winter.
The object of the present invention is achieved like this: its formula for a product is shoddy 6-9%, coal tar 3-5%, activator 0.1-0.15%, polyethylene 4-6%, polypropylene 0.3-0.85%, pitch 80-87%.Its preparation technology is, plastic waste is carried out artificial screening, carries out two-stage then and pulverizes, enter that flotation cell cleans and flotation, carry out wash cycles, send into extruding-desiccation machine then by product pump, send into drying pipeline behind the extrusion dehydration, enter the weigher metering after the oven dry, the pack of metering back is standby.When the preparation modifying asphalt, at first pitch is dropped into agitator and measure simultaneously, pitch is heated, when pitch reaches 150 ℃, add shoddy, keep 160 ℃ of temperature, add coal tar and activator simultaneously, add polyethylene after half an hour, at this moment agitator carries out high-speed stirring, is warmed up to 185 ℃ after half an hour, adds polypropylene, reduce stirring velocity, restir half an hour modifying asphalt.Main points of the present invention are its formula for a product and blending process.Its principle of work is, in preparation modifying asphalt process, plastic waste can improve the high-temperature behavior of modifying asphalt, improve pitch softening point, enhancing modified pitch, concrete intensity are unlikely and cause the summer road surface softer, destructions such as bag, rut are pushed, are gathered around in formation, waste rubber can improve the low-temperature performance of modifying asphalt, improves cryogenic ductility, the unlikely check crack that causes the road surface in winter, be full of cracks, disease such as loose.
Embodiments of the invention are as follows:
Plastic waste is carried out artificial screening, carry out two-stage then and pulverize, enter that flotation cell cleans and flotation, carry out wash cycles by product pump, send into extruding-desiccation machine then, send into drying pipeline behind the extrusion dehydration, enter the weigher metering after the oven dry, the pack of metering back is standby.When the preparation modifying asphalt, at first 830 kilograms of input agitators of pitch are measured simultaneously, pitch is heated, when pitch reaches 150 ℃, add 70 kilograms of shoddies, keep 160 ℃ of temperature, add 1.5 kilograms in 40 kilograms in coal tar and activator simultaneously, add 50 kilograms of polyethylene after half an hour, at this moment agitator carries out high-speed stirring, be warmed up to 185 ℃ after half an hour, add 8.5 kilograms of polypropylene, reduce stirring velocity restir half an hour modifying asphalt.
Waste plastics, scrap rubber composite modified asphalt compared with prior art have design science novelty, preparation Technology rationally, improve the bridge floor pavement strength, increase the bridge floor pavement quality and do not cause in life-span, winter in the summer of making The pavement destruction disease, reduce the advantage such as bridge floor pavement maintenance maintenance costs, will be widely used in traffic road and bridge In the engineering.
Claims (2)
1, a kind of plastic waste, waste rubber composite modified asphalt is characterized in that: its formula for a product is shoddy 6-9%, coal tar 3-5%, activator 0.1-0.15%, polyethylene 4-6%, polypropylene 0.3-0.85%, pitch 80-87%.
2, plastic waste according to claim 1, waste rubber composite modified asphalt, it is characterized in that: the preparation technology of said plastic waste, waste rubber composite modified asphalt is, plastic waste is carried out artificial screening, carry out two-stage then and pulverize, enter that flotation cell cleans and flotation, carry out wash cycles by product pump, send into extruding-desiccation machine then, send into drying pipeline behind the extrusion dehydration, enter the weigher metering after the oven dry, the pack of metering back is standby.When the preparation modifying asphalt, at first pitch is dropped into agitator and measure simultaneously, pitch is heated, when pitch reaches 150 ℃, add shoddy, keep 160 ℃ of temperature, add coal tar and activator simultaneously, add polyethylene after half an hour, at this moment agitator carries out high-speed stirring, is warmed up to 185 ℃ after half an hour, adds polypropylene, reduce stirring velocity, restir half an hour modifying asphalt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99112656 CN1229105A (en) | 1999-01-28 | 1999-01-28 | Modified asphalt compounded with waste plastic and waste rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99112656 CN1229105A (en) | 1999-01-28 | 1999-01-28 | Modified asphalt compounded with waste plastic and waste rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1229105A true CN1229105A (en) | 1999-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99112656 Pending CN1229105A (en) | 1999-01-28 | 1999-01-28 | Modified asphalt compounded with waste plastic and waste rubber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1229105A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392019C (en) * | 2006-02-27 | 2008-06-04 | 广州金邦橡胶沥青有限公司 | Method for producing mixed material contg. modified rubber asphalt by using dry method combined with wet method |
| CN101054451B (en) * | 2007-05-22 | 2010-05-26 | 杨林江 | Artificial asphalt for pavement and preparation method thereof |
| CN101451016B (en) * | 2007-12-07 | 2011-02-02 | 北京化工大学 | Asphalt mixture anti-rutting additive agent and use method thereof |
| CN102020860A (en) * | 2010-11-11 | 2011-04-20 | 华南理工大学 | Preparation method of rubber and plastic compound modified asphalt with stable heat storage |
| CN101705003B (en) * | 2009-11-26 | 2011-05-04 | 济南开发区星火科学技术研究院 | Coal tar pitch for high-grade roads |
| CN1847318B (en) * | 2005-04-06 | 2011-10-05 | 许政道 | Compositions and manufacturing methods of bitumen modifiers having complex functionality |
| CN101089049B (en) * | 2006-06-13 | 2012-07-25 | 上海蜜荣科电气数字集成有限责任公司 | Waste rubber tyre powder modified asphalt and its preparation process |
| CN104693821A (en) * | 2015-02-16 | 2015-06-10 | 北京路德永泰环保科技有限公司 | Bituminous mixture using DVS (direct vat set) high-adhesion modifier and preparation method thereof |
| CN107057384A (en) * | 2017-05-05 | 2017-08-18 | 安徽世界村新材料有限公司 | A kind of shoddy composite modified asphalt and preparation method thereof |
| CN110682478A (en) * | 2019-11-11 | 2020-01-14 | 上海市市政规划设计研究院有限公司 | Method for grading and directly casting modified asphalt mixture for building solid waste plastic, related modified asphalt mixture and application |
-
1999
- 1999-01-28 CN CN 99112656 patent/CN1229105A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847318B (en) * | 2005-04-06 | 2011-10-05 | 许政道 | Compositions and manufacturing methods of bitumen modifiers having complex functionality |
| CN100392019C (en) * | 2006-02-27 | 2008-06-04 | 广州金邦橡胶沥青有限公司 | Method for producing mixed material contg. modified rubber asphalt by using dry method combined with wet method |
| CN101089049B (en) * | 2006-06-13 | 2012-07-25 | 上海蜜荣科电气数字集成有限责任公司 | Waste rubber tyre powder modified asphalt and its preparation process |
| CN101054451B (en) * | 2007-05-22 | 2010-05-26 | 杨林江 | Artificial asphalt for pavement and preparation method thereof |
| CN101451016B (en) * | 2007-12-07 | 2011-02-02 | 北京化工大学 | Asphalt mixture anti-rutting additive agent and use method thereof |
| CN101705003B (en) * | 2009-11-26 | 2011-05-04 | 济南开发区星火科学技术研究院 | Coal tar pitch for high-grade roads |
| CN102020860A (en) * | 2010-11-11 | 2011-04-20 | 华南理工大学 | Preparation method of rubber and plastic compound modified asphalt with stable heat storage |
| CN102020860B (en) * | 2010-11-11 | 2013-04-17 | 华南理工大学 | Preparation method of rubber and plastic compound modified asphalt with stable heat storage |
| CN104693821A (en) * | 2015-02-16 | 2015-06-10 | 北京路德永泰环保科技有限公司 | Bituminous mixture using DVS (direct vat set) high-adhesion modifier and preparation method thereof |
| CN107057384A (en) * | 2017-05-05 | 2017-08-18 | 安徽世界村新材料有限公司 | A kind of shoddy composite modified asphalt and preparation method thereof |
| CN110682478A (en) * | 2019-11-11 | 2020-01-14 | 上海市市政规划设计研究院有限公司 | Method for grading and directly casting modified asphalt mixture for building solid waste plastic, related modified asphalt mixture and application |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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