CN102060473A - Manufacture method for plastic compound modified rubber asphalt concrete - Google Patents
Manufacture method for plastic compound modified rubber asphalt concrete Download PDFInfo
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- CN102060473A CN102060473A CN 201010548262 CN201010548262A CN102060473A CN 102060473 A CN102060473 A CN 102060473A CN 201010548262 CN201010548262 CN 201010548262 CN 201010548262 A CN201010548262 A CN 201010548262A CN 102060473 A CN102060473 A CN 102060473A
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- rubber asphalt
- manufacture method
- ethylene
- vinyl acetate
- acetate copolymer
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Abstract
The invention discloses a manufacture method for plastic compound modified rubber asphalt concrete. In the method, aggregate, rubber asphalt, ethylene-vinyl acetate copolymer and polyethylene colloidal particle are utilized as materials, and the method comprises the following steps: mixing the ethylene-vinyl acetate copolymer with the hot-melting rubber asphalt; stirring aggregate preheated to 180DEG C with the polyethylene colloidal particle; and then adding the modified rubber asphalt for stirring to obtain the plastic compound modified rubber asphalt. The above materials are in the following parts by weight: 100 parts of the aggregate and 4.5-5.5 parts of the rubber asphalt; the ethylene-vinyl acetate copolymer accounts for 0.01-0.025 part and the polyethylene colloidal particle accounts for 0.025 part by weight of the rubber asphalt. The plastic compound modified rubber asphalt concrete has higher high-temperature performance and track-resistant capability and can satisfy the road use requirements of areas with high temperature throughout the year and road sections with heavy traffic.
Description
Technical field
The present invention relates to the concrete manufacture method of a kind of plastics composite modified rubber asphalt.
Background technology
Rubber asphalt is with respect to plain asphalt, and high temperature, cryostatic stabilization performance and ageing resistance have all had certain lifting.The road-ability of Rubber-Asphalt Pavement is better, can effectively reduce vibration and noise that the effect of doughnut and road surface produces, is widely used in China's Road construction.
Rubber-Asphalt Pavement also exposes the shortcomings and deficiencies of self in the process of life-time service.Though the high-temperature stability of Rubber-Asphalt Pavement improves,, still can not satisfy the road service requirements to the climate change of different zones.Therefore can extensively lay Rubber-Asphalt Pavement in the northern area of China, and just be difficult to popularization in the high temperature area throughout the year in China south.On the other hand, in the highway section and the serious highway section of overload of heavy traffic, the rutting resistance of Rubber-Asphalt Pavement still can not meet the demands, and occurs rut in various degree easily, influences traffic safety.
Summary of the invention
The present invention adopts the plastics of two kinds of differing temps characteristics that rubber asphalt concrete is carried out modification, is intended to further improve the high-temperature stability and the rutting resistance of rubber asphalt concrete.
Mechanism of modification of the present invention:
1) EVA (ethylene-vinyl acetate copolymer, hereinafter to be referred as EVA) plastics are a kind of thermoplastic resins, temperature of fusion is lower, and is better with the rubber asphalt intermiscibility, characteristics such as ductility under both mixing energies raising rubber asphalt high-temperature stabilities, the low temperature and anti-fatigue performance.
2) PE (polyethylene is hereinafter to be referred as PE) micelle fusing point higher (more than 170 ℃), after temperature was lower than 170 ℃, PE solidified rapidly.The PE micelle is added 180 ℃ of stirrings of gathering materials, PE micelle melted by heat, PE micelle liquation and fine aggregate gluing.
3) when containing the rubber asphalt that injects the EVA modification in the gathering materials of PE, aggregate temperature descends rapidly, and PE solidifies and makes that fine aggregate is glued to form skeleton with coarse aggregate, strengthens the ability that fine aggregate is resisted rutting deformation.In the modified concrete of the present invention, the effect that the EVA rubber modified bitumen plays parcel and the thickness that bonds is gathered materials.Therefore PE and EVA make rubber asphalt concrete form new aggregate jointly, improve the compaction rate between gathering materials, and are improved the rubber asphalt concrete rutting resistance.
The concrete manufacture method of a kind of plastics composite modified rubber asphalt provided by the invention, this method get gather materials, rubber asphalt, EVA (ethylene-vinyl acetate copolymer) and PE (polyethylene) micelle be material; Earlier EVA (ethylene-vinyl acetate copolymer) is mixed with the hot melt rubber asphalt; To be preheated to 180 ℃ gather materials and PE (polyethylene) micelle mix then, the rubber asphalt that adds above-mentioned modification immediately stirs, and obtains the composite modified rubber asphalt concrete of plastics; The ratio of quality and the number of copies of above-mentioned materials is:
Gather materials 100
Rubber asphalt 4.5～5.5
EVA (ethylene-vinyl acetate copolymer) is 0.01～0.025 of a rubber asphalt mass fraction
PE (polyethylene) micelle is 0.025 of a rubber asphalt mass fraction.
The mass ratio of the rubber asphalt concrete that the bituminous pavement AC-16 plastics of making by above-mentioned manufacture method are composite modified is:
Gather materials: rubber asphalt=100: 4.9
Rubber asphalt: EVA (alkene-acetate ethylene copolymer): PE (polyethylene)=1: 0.02: 0.025.
Above-mentioned gathering materials is made up of rubble, sand grains and powder mixing.
Above-mentioned rubber asphalt is processed by bi tumenf orr oad and tyre rubber powder.
Above-mentioned EVA (ethylene-vinyl acetate copolymer) micelle is EVA 5-0.3, EVA ES440 or EVA 9-9.
Above-mentioned PE (polyethylene) micelle is HDPE TR 130UV, HDPE 6007LD or HDPE 5502-03LD.
The explanation of described material:
1. rubber asphalt is mainly processed by bi tumenf orr oad and tyre rubber powder.The selection of bi tumenf orr oad label is according to selections such as road quality classification, weather condition, the volume of traffic.The volume of rubber powder is 15% of an asphalt content.The part of rubber asphalt is with reference to DB 13/T 1013-2009 " scrap tire rubber pitch and compound technological standard ", and index sees Table 1.The rubber asphalt consumption is determined according to Marshall Test.
The technical requirements of table 1 rubber asphalt
| Project | Code requirement |
| Viscosity, 177 ℃, Pa.S | 1.5-3.0 |
| Penetration degree (4 ℃, 100g, 5s) 0.1mm, minimum | 15 |
| Ring and ball softening point, ℃, minimum | 54 |
| Rebound degree, 25 ℃, minimum | 60 |
2. above-mentioned gathering materials is made up of rubble, sand grains and powder, and the aggregate grading that bituminous pavement is commonly used has AC-13, AC-16, AC-20 etc.Aggregate grading requires with reference to JTG D50-2006 " asphalt highway design specifications ".
3.EVA (ethylene-vinyl acetate copolymer) English name ethylene-vinyl acetatecopolymer is called for short EVA, molecular formula: (C
2H
4)
x(C
4H
6O
2)
yMolecular weight: 2000 (on average).The performance perameter of EVA of the present invention such as following table 2:
Table 2 raw material EVA 5-0.3 technical parameter
EVA has introduced Vinyl Acetate Monomer in molecular chain, reduced high-crystallinity, has improved snappiness, has the elasticity as the rubber.EVA and rubber asphalt have binding ability preferably.
4.PE (polyethylene) English name: polyethylene is called for short PE, is a kind of thermoplastic resin that ethene makes through polymerization., have through the linear polymer that radical polymerization forms by vinyl monomer, belong to polymer long-chain fat hydrocarbon with the similar structure of alkane.The present invention selects high density polyethylene(HDPE) for use, its performance perameter such as following table 3:
Table 3 raw material HDPE TR-130UV technical parameter
The key technical indexes contrast before and after the modification of EVA rubber asphalt:
The key technical indexes contrast before and after the modification of table 4EVA rubber asphalt
Illustrate: penetration degree: P25 ℃, 100g, 5s; Softening temperature: TR﹠amp; B; 5 ℃ of ductility D, 5cm/min.
Contrast before and after the table 5 plastics composite modified rubber concrete AC-16C modification
The concrete every performance index of table 6 plastics composite modified rubber
Outstanding advantage of the present invention and unusual effect:
1. adopt the plastics of two kinds of differing temps characteristics, respectively rubber asphalt is carried out modification with gathering materials, mix immediately and stir, draw the composite modified rubber asphalt concrete of a kind of plastics.
2. in rubber asphalt, add EVA (ethylene-vinyl acetate copolymer), have higher flexibility and toughness, intensity height, good characteristics such as fatigue performance.
3. in high temperature gathers materials, add PE (polyethylene), can make the glued and coarse aggregate formation skeleton of fine aggregate, concrete high-temperature stability and rutting resistance are further improved.
4. the present invention satisfies the service requirements in different weather condition area and the heavy highway section of traffic, has good actual application prospect.
Embodiment
Produce at first at the scene in the process of rubber asphalt, according to said ratio EVA is dropped in the hot melt rubber asphalt and mix, dissolve fully and evenly until EVA.
To gather materials is heated to 180 ℃, drops in the stirrer and stirs 10 seconds, and PE is dropped into middle the stirring 20 second time of gathering materials.Injecting the EVA rubber modified bitumen immediately continued to mix and stir 40 seconds.
Drop temperature is controlled at 175 ℃, and the concrete speading temperature is controlled at 160 ℃ during construction, and street roller rolls temperature and is controlled at 130 ℃～150 ℃, and the final pressure temperature is not less than 110 ℃.
Claims (6)
1. concrete manufacture method of plastics composite modified rubber asphalt is characterized in that: get gather materials, rubber asphalt, ethylene-vinyl acetate copolymer and polyethylene micelle be material; Earlier ethylene-vinyl acetate copolymer is mixed with the hot melt rubber asphalt; To be preheated to 180 ℃ gather materials and polyethylene micelle mix then, the rubber asphalt that adds above-mentioned modification immediately stirs, and obtains plastics composite modified rubber asphalt concrete; The mass fraction of above-mentioned materials is:
Gather materials 100
Rubber asphalt 4.5～5.5
Ethylene-vinyl acetate copolymer is 0.01～0.025 of a rubber asphalt mass fraction
The polyethylene micelle is 0.025 of a rubber asphalt mass fraction.
2. by the described manufacture method of claim 1, it is characterized in that: the mass ratio of the rubber asphalt concrete that the bituminous pavement AC-16 plastics of making by above-mentioned manufacture method are composite modified is:
Gather materials: rubber asphalt=100: 4.9
Rubber asphalt: ethylene-vinyl acetate copolymer: polyethylene=1: 0.02: 0.025.
3. by the described manufacture method of claim 1, it is characterized in that: above-mentioned gathering materials is made up of rubble, sand grains and powder mixing.
4. by the described manufacture method of claim 1, it is characterized in that: above-mentioned rubber asphalt is processed by bi tumenf orr oad and tyre rubber powder.
5. by the described manufacture method of claim 1, it is characterized in that: above-mentioned ethylene-vinyl acetate copolymer micelle is EVA 5-0.3, EVA ES440 or EVA 9-9.
6. by the described manufacture method of claim 1, it is characterized in that: above-mentioned polyethylene micelle is HDPE TR-130UV, HDPE 6007LD or HDPE 5502-03LD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010548262 CN102060473A (en) | 2010-11-16 | 2010-11-16 | Manufacture method for plastic compound modified rubber asphalt concrete |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010548262 CN102060473A (en) | 2010-11-16 | 2010-11-16 | Manufacture method for plastic compound modified rubber asphalt concrete |
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| CN102060473A true CN102060473A (en) | 2011-05-18 |
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| CN 201010548262 Pending CN102060473A (en) | 2010-11-16 | 2010-11-16 | Manufacture method for plastic compound modified rubber asphalt concrete |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103708771A (en) * | 2013-12-10 | 2014-04-09 | 柳州博泽科技有限公司 | Composite modified rubber asphalt mixture and preparation method thereof |
| CN110593035A (en) * | 2019-09-12 | 2019-12-20 | 广州搏弈园林绿化有限公司 | Garden road construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005232344A (en) * | 2004-02-20 | 2005-09-02 | Toda Kogyo Corp | Resin composition for pavement, asphalt composition for pavement and method for producing asphalt composition for pavement |
| CN101117443A (en) * | 2006-08-04 | 2008-02-06 | 深圳市海川实业股份有限公司 | Modified asphalt material and preparation method thereof |
| CN101298376A (en) * | 2008-04-24 | 2008-11-05 | 长安大学 | Composite asphalt concrete CAC for normal temperature mixing road and production method thereof |
| CN101445338A (en) * | 2008-11-27 | 2009-06-03 | 武汉理工大学 | Method for producing wet-mixing, skid-resistance and noise-reduction asphalt road surface material |
| CN101746994A (en) * | 2008-12-17 | 2010-06-23 | 交通部公路科学研究院 | Small particle size gap gradation compact-type low-noise rubber asphalt concrete |
-
2010
- 2010-11-16 CN CN 201010548262 patent/CN102060473A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005232344A (en) * | 2004-02-20 | 2005-09-02 | Toda Kogyo Corp | Resin composition for pavement, asphalt composition for pavement and method for producing asphalt composition for pavement |
| CN101117443A (en) * | 2006-08-04 | 2008-02-06 | 深圳市海川实业股份有限公司 | Modified asphalt material and preparation method thereof |
| CN101298376A (en) * | 2008-04-24 | 2008-11-05 | 长安大学 | Composite asphalt concrete CAC for normal temperature mixing road and production method thereof |
| CN101445338A (en) * | 2008-11-27 | 2009-06-03 | 武汉理工大学 | Method for producing wet-mixing, skid-resistance and noise-reduction asphalt road surface material |
| CN101746994A (en) * | 2008-12-17 | 2010-06-23 | 交通部公路科学研究院 | Small particle size gap gradation compact-type low-noise rubber asphalt concrete |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103708771A (en) * | 2013-12-10 | 2014-04-09 | 柳州博泽科技有限公司 | Composite modified rubber asphalt mixture and preparation method thereof |
| CN110593035A (en) * | 2019-09-12 | 2019-12-20 | 广州搏弈园林绿化有限公司 | Garden road construction method |
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Application publication date: 20110518 |