CN101348350A - Waste rubber powder composite modified asphalt and preparation thereof - Google Patents
Waste rubber powder composite modified asphalt and preparation thereof Download PDFInfo
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- CN101348350A CN101348350A CNA2008101509418A CN200810150941A CN101348350A CN 101348350 A CN101348350 A CN 101348350A CN A2008101509418 A CNA2008101509418 A CN A2008101509418A CN 200810150941 A CN200810150941 A CN 200810150941A CN 101348350 A CN101348350 A CN 101348350A
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 143
- 239000005060 rubber Substances 0.000 title claims abstract description 143
- 239000000843 powder Substances 0.000 title claims abstract description 136
- 239000002699 waste material Substances 0.000 title claims abstract description 112
- 239000010426 asphalt Substances 0.000 title claims abstract description 105
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- 239000002131 composite material Substances 0.000 title claims description 48
- 230000008961 swelling Effects 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 239000011295 pitch Substances 0.000 claims description 60
- 239000011301 petroleum pitch Substances 0.000 claims description 34
- 239000002994 raw material Substances 0.000 claims description 31
- 239000010920 waste tyre Substances 0.000 claims description 18
- 230000035515 penetration Effects 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 150000001875 compounds Chemical class 0.000 abstract description 5
- 238000012986 modification Methods 0.000 abstract description 5
- 230000004048 modification Effects 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 238000011161 development Methods 0.000 abstract description 3
- 238000004321 preservation Methods 0.000 abstract description 2
- 238000010008 shearing Methods 0.000 abstract description 2
- 206010042674 Swelling Diseases 0.000 abstract 2
- 239000003208 petroleum Substances 0.000 abstract 2
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 238000003860 storage Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 44
- 239000000463 material Substances 0.000 description 19
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 9
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 9
- 238000010276 construction Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 238000011160 research Methods 0.000 description 5
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- 238000013461 design Methods 0.000 description 4
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- 229920003023 plastic Polymers 0.000 description 3
- 239000010454 slate Substances 0.000 description 3
- 229920002725 thermoplastic elastomer Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229920002209 Crumb rubber Polymers 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 2
- 108010025899 gelatin film Proteins 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
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- 238000012430 stability testing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- JLQUFIHWVLZVTJ-UHFFFAOYSA-N carbosulfan Chemical compound CCCCN(CCCC)SN(C)C(=O)OC1=CC=CC2=C1OC(C)(C)C2 JLQUFIHWVLZVTJ-UHFFFAOYSA-N 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- 239000011707 mineral Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000013502 plastic waste Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
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- 229920005989 resin Polymers 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
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- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides a waste rubber powder compound modification asphalt. The asphalt consists of the following components in weight portion: 65 to 95 portions of petroleum asphalt, 5 to 35 portions of rubber powder and 1 to 5 portions of sasobit. The preparation method is as follows: according to the weight ratio, the petroleum asphalt is put in an oven and heated to be melted at a temperature of between 120 and 160 DEG C, the liquid asphalt is put in a shearing machine, the sasobit is added in the asphalt and evenly mixed with the asphalt by stirring, and the waste rubber powder is added, the mixture is heated up to a temperature of between 180 and 220 DEG C and subjected to heat preservation and swelling for 5 to 30 minutes and sheared at a temperature of between 180 and 220 DEG C for 10 to 30 minutes, and put in a storage cylinder for swelling development for 30 to 60 minutes, and the waste rubber powder compound modification asphalt is prepared. The waste rubber powder compound modification asphalt of the invention has the advantages of good comprehensive performance, convenient production, easy control, low production cost, energy conservation and little environmental pollution, and can be applied to the pavement and the curing of an asphalt road.
Description
Technical field
The invention belongs to the material technology field, be specifically related to contain the composite modified asphalt of waste rubber powder and properties-correcting agent.
Background technology
Bituminous material has good pavement performance as a kind of mineral rubber ramming material, and aboundresources, has obtained widespread use on high grade pavement.But because the asphaltene molecule amount is less, wider distribution, its mechanical property is big to temperature sensitivity, and low temperature easily becomes fragile, and high temperature easily trickles, and elasticity and ageing-resistant performance are also relatively poor.On the other hand, along with socioeconomic continuous development, road Traffic Volume is increasing, and axle for vehicle carries more and more heavier, causes occurring on the road surface early diseases such as rut, crack, hole groove, has had a strong impact on the use properties and the comfortable security of driving on road surface.These factors need its performance is improved all to the bituminous demands for higher performance.
Definition according to China's " asphalt highway construction technique normalizing " (JTG F40-2004), modifying asphalt is meant additives (properties-correcting agent) such as admixture rubber, resin, high molecular polymer, rock asphalt, levigated rubber powder or other materials, and the performance that makes pitch or asphalt is improved and the asphaltic binder made.Properties-correcting agent is meant in pitch or asphalt and adds organic or inorganic material natural or synthetic, melting, is dispersed in the pitch, improves or improve the material of bituminous pavement property.According to the difference of properties-correcting agent, modifying asphalt can be divided into: thermoplastic elastomer class modifying asphalt, as the SBS modifying asphalt; The rubber-like modifying asphalt is as the SBR modifying asphalt; The resene modifying asphalt is as the PE modifying asphalt.
In order to alleviate the pressure of the environment and the energy, walk the road of Sustainable development, the seminar at contriver place comes modifying asphalt with waste and scrap as properties-correcting agent, wherein adopts the research of waste old powder-modified asphalt more, and has obtained remarkable progress.According to the definition of the ASTM D6144-97 of American Society Testing and Materials standard, rubber asphalt is that the rubber powder of content more than 15% (on 180 ℃) under the condition of high temperature reacts the modifying asphalt consolidating material that obtains with molten the expanding of pitch.Rubber powder with asphalt high-temperature thorough mixing state under absorb the pitch light component and molten expanding, form the very high gel-film of asphalt content at particle surface simultaneously.The molten back rubber powder volume that expands reaches the nearly 40% of agglutinate, and the rubber powder particle connects by gel-film, forms the system of the very big semi-solid state external phase of viscosity.Waste rubber powder can improve bituminous crack resistance at low-temperature, ageing resistance effectively, can strengthen the cling property of bituminous pavement, and has the function that reduces noise preferably.
Discover that using rubber powder of waste tire has the good effect of improving to the bituminous crack resistance at low-temperature, and high-temperature behavior is improved DeGrain.In order to improve the bituminous over-all properties, the seminar at contriver place is compound with waste rubber powder and other properties-correcting agent, improves the bituminous high temperature performance.Patent publication No. is the patent of invention of CN1313566C, a kind of waste Crumb rubber modified asphalt and preparation method thereof is disclosed, this method is to be under 150～200 ℃ in temperature, mixing waste tire rubber powder, thermoplastic elastomer and the stablizer of different-grain diameter that will be by 60 mesh sieves join in the basic asphalt by a certain percentage, handle through specific equipments such as high-shear or colloidal mills, be prepared into asphaltic products. with good preservation stability, high temperature performance.Although this waste tire rubber and thermoplastic elastomer (SBS or SBR) compound material can improve the bituminous high temperature performance effectively, but also come with some shortcomings: the one, because waste rubber powder and polymkeric substance are under hot conditions, pitch all had very strong viscosifying action, increased the viscosity of modifying asphalt greatly, production, pumping and the transportation of modifying asphalt caused difficulty; The 2nd, because modifying asphalt viscosity is big,, only be 1%～6% so the addition content of waste rubber powder is limited, unfavorable to the low-temperature performance that reduces production costs, alleviates environmental pressure, increase modifying asphalt; The 3rd, the modification temperature height of polymkeric substance SBS or SBR, time are long, have not only quickened the bituminous degree of aging, and have increased production cost.
Patent publication No. is the patent of invention of CN101104739A, discloses a kind of rubber powder modified asphalt and working method thereof, and this method is proportionally mixed matrix pitch, rubber powder, first linking agent, thinner and second linking agent etc., prepares modifying asphalt.This method is by adding thinner, patent CN1313566C waste rubber powder and the excessive problem of polymer composite modified asphalt viscosity have been solved, but because the material of employing solvent oil, furfural extract oil and the contour aromaticity content of vacuum distillate is as thinner, changed the bituminous component, increase bituminous lightweight oil content, damaged the bituminous high-temperature behavior.
Patent publication No. is the preparation method that CN101200597A discloses a kind of solid refuse composite modified asphalt, this method is mainly with waste Crumb rubber and plastic waste composite modified asphalt, not only increase the bituminous high temperature performance, and reduced product cost, alleviated environmental stress.The technical problem underlying that this method exists: the one, under hot conditions, rubber powder and plastics are joined in the pitch, can increase bituminous viscosity greatly, production, pumping, transportation modified bitumen product have difficulties; The 2nd, rubber powder and plastics are junk all, and there is difficulty in quality control; The 3rd, the production temperature height of product, time are long, and ageing of asphalt is serious.
Among the preparation method of disclosed waste rubber powder composite modified asphalt, additive is more in the above-mentioned patent, as thinner, linking agent etc., causes the too complicated of production technique.
Summary of the invention
Technical problem to be solved by this invention is to overcome the shortcoming that above-mentioned waste rubber powder composite modified asphalt exists, provide a kind of over-all properties good, produce convenient, be easy to control, production cost is low, save energy, the little waste rubber powder composite modified asphalt product of environmental pollution.
The technical scheme that solves the problems of the technologies described above employing is to be made by the following weight parts proportion raw material:
65～95 parts in petroleum pitch
5～35 parts of waste rubber powders
1～5 part of Sha Suobide
Above-mentioned petroleum pitch is a kind of in vacuum residuum, straight-run pitch, oxidized bitumen, the mediation pitch, and petroleum pitch is 70～150 25 ℃ penetration degree, 0.1mm; Waste rubber powder is commercially available various waste rubber powder, is produced by the permanently happy reclaimed rubber in Xi'an Products Co., Ltd, and the Sha Suobide English name is Sasobit, is produced by German SCHUMANN company, and Chongqing San Chang material of construction company limited sells on a commission basis.
Preparing raw material preferred weight part proportioning of the present invention is:
70～90 parts in petroleum pitch
10～30 parts of waste rubber powders
2～4 parts of Sha Suobide
Preparing raw material optimum weight part proportioning of the present invention is:
85 parts in petroleum pitch
15 parts of waste rubber powders
3 parts of Sha Suobide
The fineness of the waste rubber powder in proportioning raw materials of the present invention is 20～80 orders.
Waste rubber powder in proportioning raw materials of the present invention is preferably using rubber powder of waste tire.
The main effect of the waste rubber powder in the proportioning of the present invention is by the lightweight oil content in the high temperature swelling absorption petroleum pitch, the waste rubber powder particle volume expands, in petroleum pitch, form the successive elastomerics, help petroleum pitch opposing low temperature convergent force, increase the crack resistance at low-temperature of petroleum pitch.Sha Suobide is the polyolefins macromolecule modifier, and modulus is higher, and fusing point is 115 ℃, and it mainly acts on is the high-temperature behavior that increases the high-temperature modulus of petroleum pitch and improved petroleum pitch, increases the volume of waste rubber powder.
The preparation method of above-mentioned waste rubber powder composite modified asphalt is as follows:
By above-mentioned weight proportion petroleum pitch is put into baking oven internal heating to 120～160 and ℃ make its fusing, liquid bitumen joins in the shears, Sha Suobide joins in the pitch, mix, add waste rubber powder again, continue to be warming up to 180～220 ℃, insulation swelling 5～30 minutes, sheared 10～30 minutes for 180～220 ℃, put into the hold tank swelling and grew 30～60 minutes, be prepared into waste rubber powder composite modified asphalt.
Contain waste rubber powder in the proportioning raw materials of the present invention, the main raw material of waste rubber powder is a junked tire, solved the problem of environmental pollution of junked tire, contain natural rubber, synthetic rubber and minor amounts of additives in the waste rubber powder, use the bituminous pavement of making of the present invention, improve crack resistance at low-temperature, elastic recovery properties and the cling property on road surface, reduced the noise pollution that vehicle travels.Waste rubber powder composite modified asphalt of the present invention have over-all properties good, produce convenient, be easy to that control, production cost are low, advantage such as save energy, environmental pollution are little, can in the making of asphalt roads and maintenance, promote the use of.
Embodiment
The present invention is described in more detail below in conjunction with embodiment, but the invention is not restricted to these embodiment.
Embodiment 1
To produce waste rubber powder composite modified asphalt 100kg is example, and used raw material and proportioning thereof are as follows:
Straight-run pitch 82.53kg
Waste rubber powder 14.56kg
Sha Suobide 2.91kg
Straight-run pitch is 70～150 (in 0.1mm) 25 ℃ penetration degree; The fineness of using rubber powder of waste tire is 60 orders, is produced by the permanently happy reclaimed rubber in Xi'an Products Co., Ltd.The Sha Suobide English name is Sasobit, is produced by German SCHUMANN company, and Chongqing San Chang material of construction company limited sells on a commission basis, and the waste rubber powder of present embodiment also can adopt waste and old footwear rubber powder.
Its preparation method is as follows:
By above-mentioned weight proportion straight-run pitch is put into baking oven internal heating to 120～160 and ℃ make its fusing, liquid bitumen joins in the shears, Sha Suobide joins in the pitch, mix, add waste rubber powder again, continue to be warming up to 200 ℃, insulation swelling 20 minutes, sheared 20 minutes for 200 ℃, put into the hold tank swelling and grew 40 minutes, be prepared into waste rubber powder composite modified asphalt.
In the raw materials used proportioning of present embodiment, the weight part of each component is:
85 parts of straight-run pitches
15 parts of waste rubber powders
3 parts of Sha Suobide
Embodiment 2
To produce waste rubber powder composite modified asphalt 100kg is example, and used raw material and proportioning thereof are as follows:
Straight-run pitch 91.55kg
Waste rubber powder 7.04kg
Sha Suobide 1.41kg
Straight-run pitch is 70～150 (in 0.1mm) 25 ℃ penetration degree; The fineness of junked tire levigated rubber powder is 20 orders, is produced by the permanently happy reclaimed rubber in Xi'an Products Co., Ltd.The Sha Suobide English name is Sasobit, is produced by German SCHUMANN company, and Chongqing San Chang material of construction company limited sells on a commission basis.。
Its preparation method is as follows:
By above-mentioned weight proportion straight-run pitch is put into baking oven internal heating to 120～160 and ℃ make its fusing, liquid bitumen joins in the shears, Sha Suobide joins in the pitch, mix, add waste rubber powder again, continue to be warming up to 180 ℃, insulation swelling 5 minutes, sheared 30 minutes for 180 ℃, put into the hold tank swelling and grew 30 minutes, be prepared into waste rubber powder composite modified asphalt.
In the raw materials used proportioning of present embodiment, the weight part of each component is:
65 parts of straight-run pitches
5 parts of waste rubber powders
1 part of Sha Suobide
Embodiment 3
To produce waste rubber powder composite modified asphalt 100kg is example, and used raw material and proportioning thereof are as follows:
Straight-run pitch 70.37kg
Waste rubber powder 25.93kg
Sha Suobide 3.70kg
Straight-run pitch is 70～150 (in 0.1mm) 25 ℃ penetration degree; The fineness of using rubber powder of waste tire is 80 orders, is produced by the permanently happy reclaimed rubber in Xi'an Products Co., Ltd.The Sha Suobide English name is Sasobit, is produced by German SCHUMANN company, and Chongqing San Chang material of construction company limited sells on a commission basis.
Its preparation method is as follows:
By above-mentioned weight proportion straight-run pitch is put into baking oven internal heating to 120～160 and ℃ make its fusing, liquid bitumen joins in the shears, Sha Suobide joins in the pitch, mix, add waste rubber powder again, continue to be warming up to 220 ℃, insulation swelling 30 minutes, sheared 10 minutes for 220 ℃, put into the hold tank swelling and grew 60 minutes, be prepared into waste rubber powder composite modified asphalt.
In the raw materials used proportioning of present embodiment, the weight part of each component is:
95 parts of straight-run pitches
35 parts of waste rubber powders
5 parts of Sha Suobide
Embodiment 4
To produce waste rubber powder composite modified asphalt 100kg is example, and used raw material and proportioning thereof are as follows:
Straight-run pitch 61.91kg
Waste rubber powder 33.33kg
Sha Suobide 4.76kg
The penetration degree of straight-run pitch, the fineness of using rubber powder of waste tire are identical with embodiment 1.
Its preparation method is identical with embodiment 1.
In the raw materials used proportioning of present embodiment, the weight part of each component is:
65 parts of straight-run pitches
35 parts of waste rubber powders
5 parts of Sha Suobide
Embodiment 5
To produce waste rubber powder composite modified asphalt 100kg is example, and used raw material and proportioning thereof are as follows:
Straight-run pitch 90.48kg
Waste rubber powder 4.76kg
Sha Suobide 4.76kg
The penetration degree of straight-run pitch, the fineness of using rubber powder of waste tire are identical with embodiment 1.
Its preparation method is identical with embodiment 1.
In the raw materials used proportioning of present embodiment, the weight part of each component is:
95 parts of straight-run pitches
5 parts of waste rubber powders
5 parts of Sha Suobide
Embodiment 6
To produce waste rubber powder composite modified asphalt 100kg is example, and used raw material and proportioning thereof are as follows:
Straight-run pitch 72.52kg
Waste rubber powder 26.72kg
Sha Suobide 0.76kg
The penetration degree of straight-run pitch, the fineness of using rubber powder of waste tire are identical with embodiment 1.
Its preparation method is identical with embodiment 1.
In the raw materials used proportioning of present embodiment, the weight part of each component is:
95 parts of straight-run pitches
35 parts of waste rubber powders
1 part of Sha Suobide
Embodiment 7
To produce waste rubber powder composite modified asphalt 100kg is example, and used raw material and proportioning thereof are as follows:
Straight-run pitch 86.66kg
Waste rubber powder 6.67kg
Sha Suobide 6.67kg
The penetration degree of straight-run pitch, the fineness of using rubber powder of waste tire are identical with embodiment 1.
Its preparation method is identical with embodiment 1.
In the raw materials used proportioning of present embodiment, the weight part of each component is:
65 parts of straight-run pitches
5 parts of waste rubber powders
5 parts of Sha Suobide
Embodiment 8
To produce waste rubber powder composite modified asphalt 100kg is example, and used raw material and proportioning thereof are as follows:
Straight-run pitch 64.36kg
Waste rubber powder 34.65kg
Sha Suobide 0.99kg
The penetration degree of straight-run pitch, the fineness of using rubber powder of waste tire are identical with embodiment 1.
Its preparation method is identical with embodiment 1.
In the raw materials used proportioning of present embodiment, the weight part of each component is:
65 parts of straight-run pitches
35 parts of waste rubber powders
1 part of Sha Suobide
Embodiment 9
To produce waste rubber powder composite modified asphalt 100kg is example, and used raw material and proportioning thereof are as follows:
Straight-run pitch 94.06kg
Waste rubber powder 4.95kg
Sha Suobide 0.99kg
The penetration degree of straight-run pitch, the fineness of using rubber powder of waste tire are identical with embodiment 1.
Its preparation method is identical with embodiment 1.
In the raw materials used proportioning of present embodiment, the weight part of each component is:
95 parts of straight-run pitches
5 parts of waste rubber powders
1 part of Sha Suobide
Embodiment 10
To produce waste rubber powder composite modified asphalt 100kg is example, and used raw material and proportioning thereof are as follows:
In above embodiment 1～9, used straight-run pitch is replaced with vacuum residuum, consumption is identical with straight-run pitch, the penetration degree of vacuum residuum is identical with respective embodiments, the consumption of using rubber powder of waste tire and fineness are identical with respective embodiments, and the consumption of Sha Suobide is identical with respective embodiments.
Its preparation method is identical with respective embodiments.
Embodiment 11
To produce waste rubber powder composite modified asphalt 100kg is example, and used raw material and proportioning thereof are as follows:
In above embodiment 1～9, used straight-run pitch is replaced with oxidized bitumen, consumption is identical with straight-run pitch, the penetration degree of oxidized bitumen is identical with respective embodiments, the consumption of using rubber powder of waste tire and fineness are identical with respective embodiments, and the consumption of Sha Suobide is identical with respective embodiments.
Its preparation method is identical with respective embodiments.
Embodiment 12
To produce waste rubber powder composite modified asphalt 100kg is example, and used raw material and proportioning thereof are as follows:
In above embodiment 1～9, used straight-run pitch is with being in harmonious proportion the pitch replacement, consumption is identical with straight-run pitch, the penetration of bitumens that is in harmonious proportion is identical with respective embodiments, the consumption of using rubber powder of waste tire and fineness are identical with respective embodiments, and the consumption of Sha Suobide is identical with respective embodiments.
Its preparation method is identical with respective embodiments.
For determining products material proportioning of the present invention and best preparation method, the contriver has carried out a large amount of research trials, and various test situation are as follows.
Plant and instrument: testing laboratory's high-speed shearing machine, model are SA II-450, and Shanghai Suo Xiang electromechanical equipment Manufacturing Co., Ltd makes; Penetration test device, model are SYD-2801E, and Shanghai Changji Geological Instrument Co., Ltd. produces; Full-automatic bituminous softening-point test device, model is SYD-280G, Shanghai Changji Geological Instrument Co., Ltd. produces; Pitch expansion test device, model are SYD-4508G, and Shanghai Changji Geological Instrument Co., Ltd. produces; Pitch recovery of elasticity determinator, model are HCR-680, and sea, Henan kerr instrument instruments and meters company limited produces; Multi-functional circulation water bath with thermostatic control, model are HWY-10, and Shanghai Changji Geological Instrument Co., Ltd. produces; Cryogenic thermostat water-bath, model are HWY-1, and Shanghai Changji Geological Instrument Co., Ltd. produces; Universal electric furnace, big Yongxing Instr Ltd. of Beijing section produces.
1, material modified performance impact to petroleum pitch
Test method: 75 parts in petroleum pitch, 20 parts of waste rubber powders (WPE), respectively 5 parts of styrene-butadiene-styrene (SBS), new LDPE (film grade) (LPE), Sha Suobide, petroleum pitch adopts No. 90 petroleum pitch in the East Sea, the waste old powder fineness is 60 orders, produced by Sichuan Lv Yuan Science and Technology Ltd., styrene-butadiene-styrene is produced waste rubber powder by Yanshan Petrochemical company and is produced by plastics company limited of Nantong Hang Seng; New LDPE (film grade), trade name are 2426H, and company limited produces by the trade of Shanghai gold, and the Sha Suobide English name is Sasobit, are produced by German SCHUMANN company, and Chongqing San Chang material of construction company limited sells on a commission basis.By preparation method of the present invention, be prepared into waste rubber powder composite modified asphalt respectively, be designated as WR+SBS, WR+WPE, WR+LPE, WR+sasobit respectively.Every index of the waste rubber powder composite modified asphalt by testing the preparation of different proportionings is selected material modified.
Test method is undertaken by the relevant rules of the ministerial standard JTJ 052-2000 of the Ministry of Communications " highway engineering pitch and asphalt testing regulation ".Test-results sees Table 1.
Table 1 different composite material modification bituminous performance
| Test subject | Petroleum pitch | WR+SBS | WR+WPE | WR+LPE | WR+sasobit |
| Softening temperature (℃) | 45.5 | 64 | 58 | 62 | 69.5 |
| 25 ℃ of pins go into (100g, 5s, 0.1mm) | 94 | 72 | 74 | 73 | 70 |
| 5 ℃ of ductilities (cm) | 6 | 12 | 9 | 10 | 13 |
| Elastic restoration ratio (%) | 25 | 78 | 60 | 63 | 84 |
By table 1 as seen, every performance index of several composite modified asphalts all are better than unmodified bituminous performance.Waste rubber powder+sasobit composite modified asphalt softening temperature is the highest, penetration degree is minimum, illustrate that high-temperature behavior is best, waste rubber powder+sasobit composite modified asphalt ductility, elastic restoration ratio maximum, illustrate that low-temperature performance is best, secondly being waste rubber powder+styrene-butadiene-styrene composite modified asphalt, is material modified so the present invention selects waste rubber powder+sasobit.
2, determine best proportioning test of the present invention
In order to determine the best proportioning of the present invention, the contriver is a variable with petroleum pitch, waste rubber powder, Sha Suobide, has designed orthogonal test, and test design sees Table 2.
Table 2 proportioning orthogonal test 1 design table of the present invention
| The parameter level | Petroleum pitch | Waste rubber powder | Sha Suobide |
| Level 1 | 65 | 5 | 1 |
| Level 2 | 80 | 20 | 3 |
| Level 3 | 95 | 35 | 5 |
Be prepared into different composite modified asphalts by preparation method of the present invention, petroleum pitch adopts No. 90 pitches in the East Sea, and waste rubber powder adopts using rubber powder of waste tire, and fineness is 60 orders.Test method is undertaken by the relevant rules of the ministerial standard JTJ052-2000 of the Ministry of Communications " highway engineering pitch and asphalt testing regulation ", tests softening temperature, penetration degree, ductility and elastic restoration ratio respectively.Test-results sees Table 3.
Table 3 orthogonal test 1 test-results of the present invention
| Test | Petroleum pitch | Waste rubber powder | Sha Suobide | Softening temperature (℃) | 25 ℃ of pins go into (100g, 5s, 0.1mm) | 5 ℃ of ductilities (cm) | Elastic restoration ratio (%) |
| 1 | 65 | 5 | 1 | 54.0 | 83 | 10 | 78 |
| 2 | 65 | 20 | 3 | 70.5 | 75 | 8 | 85 |
| 3 | 65 | 35 | 5 | 65.0 | 72 | 8 | 83 |
| 4 | 80 | 20 | 3 | 75.0 | 66 | 15 | 90 |
| 5 | 80 | 35 | 5 | 65.5 | 69 | 7 | 84 |
| 6 | 80 | 5 | 1 | 53.5 | 80 | 9 | 73 |
| 7 | 95 | 5 | 5 | 62.0 | 68 | 6 | 70 |
| 8 | 95 | 20 | 1 | 49.5 | 70 | 12 | 76 |
| 9 | 95 | 35 | 3 | 56.0 | 74 | 11 | 80 |
By table 3 as seen, test the every better performances of modifying asphalt of 4 correspondences, in order further to determine optimum formula of the present invention, design orthogonal test 2 sees Table 4.Test-results sees Table 5.
Table 4 proportioning orthogonal test 2 design tables of the present invention
| The parameter level | Petroleum pitch | Waste rubber powder | Sha Suobide |
| Level 1 | 70 | 10 | 2 |
| Level 2 | 85 | 15 | 3 |
| Level 3 | 90 | 30 | 4 |
Table 5 orthogonal test 2 test-results of the present invention
| Test | Petroleum pitch | Waste rubber powder | Sha Suobide | Softening temperature (℃) | 25 ℃ of pins go into (100g, 5s, 0.1mm) | 5 ℃ of ductilities (cm) | Elastic restoration ratio (%) |
| 1 | 70 | 10 | 2 | 56.0 | 80 | 11 | 80 |
| 2 | 70 | 15 | 3 | 71.0 | 77 | 8 | 84 |
| 3 | 70 | 30 | 4 | 63.0 | 75 | 9 | 85 |
| 4 | 85 | 15 | 3 | 77.5 | 68 | 16 | 92 |
| 5 | 85 | 30 | 4 | 67.0 | 67 | 8 | 82 |
| 6 | 85 | 10 | 2 | 54.5 | 78 | 9 | 76 |
| 7 | 90 | 10 | 4 | 60.5 | 66 | 7 | 70 |
| 8 | 90 | 15 | 2 | 53.5 | 72 | 10 | 82 |
| 9 | 90 | 30 | 3 | 67.0 | 74 | 9 | 84 |
As shown in Table 5, under test 4 conditions, promptly the petroleum pitch weight part be 85 parts, waste rubber powder be 15 parts, when Sha Suobide is 3 parts, the every performance of the modifying asphalt of preparation is best.
Can draw from orthogonal test 1 and orthogonal test 2, the weight part proportioning of waste rubber powder composite modified asphalt of the present invention is:
65～95 parts in petroleum pitch
5～35 parts of waste rubber powders
1～5 part of Sha Suobide
Waste rubber powder composite modified asphalt optimum weight part proportioning of the present invention:
85 parts in petroleum pitch
15 parts of waste rubber powders
3 parts of Sha Suobide
In order to verify beneficial effect of the present invention, the contriver has carried out simultaneous test according to the waste rubber powder composite modified asphalt of the embodiment of the invention 1 proportioning preparation and the pavement performance of unmodified petroleum pitch.Various test situation are as follows:
Testing installation: electric oven, model are DGF-4A, are produced by Tianjin Tai Site Instr Ltd.; Mixing apparatus, model are ZJB-20C, by modern mental faculties in quescent slate arrow observation and control technology Research Institute test; The rut test piece shaper, model QCX-4 is by modern mental faculties in quescent slate arrow observation and control technology Research Institute; The wheel tracking test instrument, model QCZ-2 is by modern mental faculties in quescent slate arrow observation and control technology Research Institute; The test specimen cutting facility; CMT5504 micro computer control electronic universal tester, model is CMT5504, is developed by the Shenzhen Sans Material Detection Co., Ltd; The automatic compaction test apparatus of marshal piece, model DZG-3 is developed by Xian Highway Inst.; The Marshall stability test instrument, model AMS-C is developed by Xian Highway Inst..
Test mainly comprises high-temperature stability, low-temperature cracking-resistance and the water stability testing of asphalt, and the thimble test of asphalt adopts wheel tracking test, and the test parameter index is the dynamic stability of asphalt; The low-temperature performance of asphalt adopts low-temperature bending test, and the test parameter index is breaking strain; The water stability testing of asphalt adopts immersion Marshall Test and freeze thawing split test, and the test parameter index is residual stability and retained strength ratio.Test method is undertaken by the relevant rules of the ministerial standard JTJ 052-2000 of the Ministry of Communications " highway engineering pitch and asphalt testing regulation ".Test-results detects the related request of index by the logical ministerial standard JTG F40-2004 of portion " asphalt highway construction technique normalizing " of traffic.Test-results sees Table 6.
Table 6 waste rubber powder composite modified asphalt proof test of the present invention result
By table 6 as seen, dynamic stability, breaking strain, residual stability and the retained strength of the asphalt of waste rubber powder composite modified asphalt of the present invention preparation is than all than the excellent performance of the asphalt of unmodified petroleum pitch preparation, satisfy the related request of the logical ministerial standard JTG F40-2004 of portion " asphalt highway construction technique normalizing " of traffic, illustrate that product of the present invention has good pavement performance.
Claims (7)
1, a kind of waste rubber powder composite modified asphalt is characterized in that it is to be made by the following weight parts proportion raw material:
65～95 parts in petroleum pitch
5～35 parts of waste rubber powders
1～5 part of Sha Suobide
Above-mentioned petroleum pitch is a kind of in vacuum residuum, straight-run pitch, oxidized bitumen, the mediation pitch, and petroleum pitch is 70～150 25 ℃ penetration degree, 0.1mm.
2,, it is characterized in that wherein making by following raw material and weight part proportioning thereof according to the described waste rubber powder composite modified asphalt of claim 1:
70～90 parts in petroleum pitch
10～30 parts of waste rubber powders
2～4 parts of Sha Suobide.
3,, it is characterized in that wherein making by following raw material and weight part proportioning thereof according to the described waste rubber powder composite modified asphalt of claim 1:
85 parts in petroleum pitch
15 parts of waste rubber powders
3 parts of Sha Suobide.
4, according to claim 1 or 2 or 3 described waste rubber powder composite modified asphalts, it is characterized in that: the fineness of said waste rubber powder is 20～80 orders.
5, according to claim 1 or 2 or 3 described waste rubber powder composite modified asphalts, it is characterized in that: said waste rubber powder is a using rubber powder of waste tire.
6, according to the described waste rubber powder composite modified asphalt of claim 4, it is characterized in that: said waste rubber powder is a using rubber powder of waste tire.
7, a kind of preparation method of claim 1 waste rubber powder composite modified asphalt is characterized in that the step of this method is as follows:
By above-mentioned weight proportion petroleum pitch is put into baking oven internal heating to 120～160 and ℃ make its fusing, liquid bitumen joins in the shears, Sha Suobide joins in the pitch, mix, add waste rubber powder again, continue to be warming up to 180～220 ℃, insulation swelling 5～30 minutes, sheared 10～30 minutes for 180～220 ℃, put into the hold tank swelling and grew 30～60 minutes, be prepared into waste rubber powder composite modified asphalt.
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| CN102002246A (en) * | 2010-11-26 | 2011-04-06 | 重庆交大道路桥技术研究有限公司 | Low-viscosity rubber asphalt pavement material and pavement construction method thereof |
| CN101851426B (en) * | 2010-05-13 | 2012-05-23 | 重庆中交道桥科技有限公司 | High-strength asphalt modifier for cast asphalt concrete and preparation method thereof |
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| CN101851426B (en) * | 2010-05-13 | 2012-05-23 | 重庆中交道桥科技有限公司 | High-strength asphalt modifier for cast asphalt concrete and preparation method thereof |
| CN102002246A (en) * | 2010-11-26 | 2011-04-06 | 重庆交大道路桥技术研究有限公司 | Low-viscosity rubber asphalt pavement material and pavement construction method thereof |
| CN103468005A (en) * | 2013-07-09 | 2013-12-25 | 杨林江 | Modified low-viscosity rubber asphalt and preparation method thereof |
| CN103468005B (en) * | 2013-07-09 | 2015-09-23 | 杨林江 | A kind of modification low-viscosity rubber asphalt and preparation method thereof |
| CN106221253A (en) * | 2016-08-29 | 2016-12-14 | 四川知行路桥集团有限公司 | A kind of production technology of waste and old rubber modified asphalt regeneration |
| CN106497101A (en) * | 2016-10-19 | 2017-03-15 | 杨人凤 | A kind of low-viscosity rubber asphalt |
| CN106673503A (en) * | 2016-12-30 | 2017-05-17 | 山东公路技师学院 | Composite modified asphalt mixture for steel bridge and preparation method of composite modified asphalt mixture |
| CN106673503B (en) * | 2016-12-30 | 2018-06-15 | 长安大学 | A kind of Steel Bridge Deck composite modified asphalt mixture and preparation method thereof |
| CN113201226A (en) * | 2021-05-25 | 2021-08-03 | 山东交通学院 | Modified asphalt mixed with waste engine oil residues and waste rubber and preparation method thereof |
| CN115368746A (en) * | 2022-07-13 | 2022-11-22 | 广西交建工程检测咨询有限公司 | Stable environment-friendly rubber asphalt and preparation method thereof |
| CN119060553A (en) * | 2024-10-30 | 2024-12-03 | 南京工业大学 | A kind of warm mix modified rubber asphalt and preparation method thereof |
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Application publication date: 20090121 |