CN102477224A - High-performance composite modified asphalt - Google Patents
High-performance composite modified asphalt Download PDFInfo
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- CN102477224A CN102477224A CN2010105689402A CN201010568940A CN102477224A CN 102477224 A CN102477224 A CN 102477224A CN 2010105689402 A CN2010105689402 A CN 2010105689402A CN 201010568940 A CN201010568940 A CN 201010568940A CN 102477224 A CN102477224 A CN 102477224A
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- 239000010426 asphalt Substances 0.000 title claims abstract description 92
- 239000002131 composite material Substances 0.000 title claims abstract description 20
- 238000003756 stirring Methods 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 238000000151 deposition Methods 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 230000006378 damage Effects 0.000 abstract description 11
- 238000010276 construction Methods 0.000 abstract description 7
- 229920000642 polymer Polymers 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 239000011295 pitch Substances 0.000 description 49
- 239000003795 chemical substances by application Substances 0.000 description 14
- 239000004567 concrete Substances 0.000 description 13
- 239000000843 powder Substances 0.000 description 11
- 239000000126 substance Substances 0.000 description 11
- 239000002344 surface layer Substances 0.000 description 9
- 239000010410 layer Substances 0.000 description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 6
- 238000005336 cracking Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000003245 working effect Effects 0.000 description 6
- 239000011384 asphalt concrete Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 230000003712 anti-aging effect Effects 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 230000001932 seasonal effect Effects 0.000 description 4
- 230000003078 antioxidant effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 101150026213 atpB gene Proteins 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 2
- 229910052919 magnesium silicate Inorganic materials 0.000 description 2
- 235000019792 magnesium silicate Nutrition 0.000 description 2
- 239000000391 magnesium silicate Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000011317 mixed pitch Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011301 petroleum pitch Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011387 rubberized asphalt concrete Substances 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Landscapes
- Road Paving Structures (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The utility model provides a high performance composite modified asphalt, belongs to highway traffic construction field, characterized by: the weight ratio of the lake asphalt to the rubber asphalt or the modified rubber asphalt is 1-2: 4-3; the production process comprises the following steps: a. heating lake asphalt to above 175 ℃; stirring in each tank; b. heating the rubber asphalt or the modified rubber asphalt at 170-185 ℃; c. pumping the added lake asphalt and the rubber asphalt or the modified rubber asphalt into a stirring device according to the proportion, and stirring for 25-50min to obtain a mixture, namely a finished product. The beneficial effects are that: the natural asphalt and the rubber asphalt are used for composite modification. The asphalt has better intermiscibility, improves the service performance of asphalt and asphalt mixture, and has unique superiority compared with polymer modified asphalt. Is a new way and a new method for solving the early damage of the asphalt pavement.
Description
Technical field
The invention belongs to the highway communication construction field.
Background technology
In recent years, along with building up of high-grade highway net, the volume of traffic had had bigger increase, and owing to developing rapidly of road construction, passenger-cargo freight volume and passenger-cargo volume of the circular flow proportion that transport by road is accomplished increase substantially, and have promoted the quick growth of Chinese national economy.But the consequent is heavily loaded, the overload phenomenon is on the rise; The large percentage of traction engine during particularly the traffic of the trunk lines of national expressways of some outbalances is formed; And the overload phenomenon is very serious; Receive the nature and the artificial factor such as geology, the hydrology, meteorology of seasonal frost region simultaneously, cause bituminous pavement to occur rut prematurely, gather around bag, the early stage damage such as hole groove.Influence use properties, the road-ability of road, and reduce greatly the work-ing life on road surface, cause the road surface service function to descend, influence is operation normally, has increased the input of maintenance costs, causes enormous economic loss, and What is more, harm people's life security.The investigation result that early stage rut damages appears in national high-grade highway under heavy duty, the overload effect, and is startling! The northeast motorway was open to the traffic in 2000, more than 120 hundred million yuan of total investment of engineering, and using design period is 15 years; 3 years have only been spent; Tangible rut appears in many places completely, and what the rut cup depth was maximum reaches 13 centimetres, because extensive heavy duty overload transportation; Have to get into overhaul in 12 years in advance in these highway sections, the financial loss that causes is well imagined.109.93 kilometers of capital pearl section route total lengths are invested 56.6 hundred million yuan, are open to the traffic in April, 2003.Be open to traffic soon, serious rut just occurs.The innermost reaches 80mm, average 20～30mm.Since 2003, Beijing is because the direct economic loss that local function causes reaches 7.6 hundred million, and heavy duty overload phenomenon makes highway get into the overhaul phase in advance; The highway maintenance cost increases greatly; Influenced traffic efficiency, and part highway section rut depth 14cm, had a strong impact on traffic safety.According to factual survey, one of them major cause is the effect of heavy duty, overload car.Through disease on the-spot investigation data analysis to the part motorway; The early stage damage on road surface is main with rut and check crack (be full of cracks) mainly, and rut is the accumulation of each layer of pavement structure tension set, and the tension set of bituminous pavement not only directly influences surface evenness, use properties, road-ability; And reduce greatly work-ing life on road surface; Cause enormous economic loss, What is more, harm people's life security.Therefore, how to solve the road surface and damage in early days, prolong the work-ing life on road surface, prevent that the generation of disease from having become the road construction problem demanding prompt solution.
Receive seasonal freezing influence in addition, make bituminous pavement produce anti-low-temperature cracking, pavement structure does not reach design period in work-ing life, and early stage the damage occur, and its influence factor is more, mainly is the comprehensive action of load, precipitation and temperature.At seasonal frost region, the annual once big freeze-thaw cycle phase in winter (more than 20 ℃), from going into the multigelation circulation that ten water several times will be arranged winter to the beginning of spring, though temperature is not low, the accumulative total effect is very big during this.The researchist shows the transverse crack observation that the North China has built the Expressway Asphalt surface layer; Crack quantity after heavy traffic paving asphalt surface layer, modifying asphalt surface layer and modified asphalt SMA surface layer were open to traffic 3 years; Every kilometer long highway section, the few about 30-40 bar of person in crack, majority is the 40-50 bar.The northeast motorway adopts two-layer SBS modifying asphalt, and the 1 year every kilometer crack that be open to traffic just reaches the 30-40 bar, and visible seasonal frost region is just even more serious.
Existing research shows that the existence of pavement crack makes the structural strength loss on road surface more than 1/3, and fissured maintenance costs occupies larger proportion in the routine servicing of bituminous pavement; During fissured minimizing will be practiced thrift greatly, the routine maintenance expense.If can effectively reduce or prevent fissured generation, avoid the following of rainwater to ooze, reach more than 5 years the work-ing life that can prolong the road surface, will make the structural life-time on road surface be able to prolong simultaneously.The big or middle cycle of repairing of road surface is increased, practice thrift maintenance costs.
For making asphalt concrete pavement have that use properties is durable preferably; Reduce the early stage damage on road surface; Except that there are enough supporting capacitys on the road surface, make the road surface can not produce the structural destruction; Must solve also that the serious rut groove of asphalt concrete pavement itself more issuable early damages, particularly upper layer, early water destroy, bituminous concrete surface layer produces serious low temperature crack, asphalt concrete layer produces fatigue cracking.Therefore, the anti-permanentset ability of the high temperature of bituminous concrete is eager to excel, and the effect repeatedly that makes asphalt concrete layer can bear heavy-duty vehicle is difficult for producing serious rut groove; Also to reduce serious thermal cracking and the fatigue lifetime that increases asphalt concrete layer simultaneously.
Asphalt mainly is made up of mineral aggregate and two big types of materials of pitch.Evidence; The use properties of bituminous concrete and weather resistance depend primarily on bituminous quality, mineral aggregate type and quality, mineral aggregate gradation is formed; Pitch is essential important component in the bituminous concrete, is the most critical factor of decision bituminous concrete physical-chemical property.
In asphalt highway is built, in order to improve its physical and mechanical property, adopt various modified asphalt mixtures to do surface layer, promptly in pitch incorporating modified dose.Used properties-correcting agent type has multiple, like little earthfill rockfill concrete riprap RCC properties-correcting agent such as carbon black, high-calcium fly asses, and fiber-like properties-correcting agent such as polyester, fibrous magnesium silicate, high polymers class properties-correcting agent such as resin, rubber and the Phosphorus properties-correcting agent of sulphur etc.Certainly these properties-correcting agent are not to be applicable to any condition, and some can improve its rheological, like high polymers class properties-correcting agent and little earthfill rockfill concrete riprap RCC properties-correcting agent, are applicable to the area of the relevant great disparity of high low temperature; Some can increase tensile strength, like fiber-like properties-correcting agent, is applicable to the cryodrying area.All artificial the mixing in proportion of above-mentioned all these properties-correcting agent joined, some toxic effect, and for example wynene, fibrous magnesium silicate etc. are harmful to the health of human body, also unfavorable to the protection of environment certainly.
In recent years, use comparatively generally properties-correcting agent such as SBS at home in the express highway pavement, the use of various fibers is more and more, and the use properties of improving bituminous pavement is played a good role.But, use modified pitch of high polymer; Mix allotment of labor's complicacy of planting, processing units is expensive, and the road surface construction cost of increase is more.Simultaneously, polymkeric substance belongs to Chemicals, and ageing-resistant performance has certain limitation.Because also possibly there is some unexpected difficulty in the existence of polymkeric substance in the old pavement regenerative process.These problems all will have a negative impact to the development of modifying asphalt.
Summary of the invention
The objective of the invention is: a kind of high-performance composite modified asphalt is provided, and it can improve high-temperature stability, low-temperature stability, antifatigue and the aging ability of bituminous pavement, reduces the cost of bituminous pavement.
Technical scheme of the present invention is:
The weight proportion of lake pitch and rubber asphalt (or rubber modified bitumen) is:
1～2∶4～3。
Lake pitch is that Trinida lake pitch (translate a thousand li again and reach lake pitch, be called for short TLA) is foremost in the world natural lake pitch.In the domestic pitch lake in the Trinidad in marine site, Caribbean, the West Indies, contained the natural lake pitch of millions of ton of meter.Lake pitch forms under native state, therefore contains the mineral substance of some amount.The chemical constitution of lake pitch mainly contains bituminous matter, resin and oil content to be formed, and also has the part insolubles.
Rubber asphalt is with the dispersion agent of pitch as rubber powder, with rubber powder and pitch miscible a kind of modifying asphalt of processing under hot conditions of high dosage.The volume of rubber powder (in mix) (weight ratio) that be not less than 15% wherein.Claim asphalt rubber again.
Rubber modified asphalt with pitch as rubber powder, gather the dispersion agent of organic acid anhydride of third ethene (PS) particle and trace, with the rubber powder of high dosage, gather organic acid anhydride and pitch miscible a kind of modifying asphalt of processing under hot conditions of third ethene (PS) particle and trace.Wherein the volume of rubber powder (in mix) (weight ratio) that be not less than 15% gathered 1%～2% (weight ratio) that third ethene (PS) particle is a rubber powder.
The production craft step of this invention is:
A. by the lake pitch melting unit of special use fusing lake pitch and be heated to more than 175 ℃.The lake pitch melting unit; It has two storehouses to constitute: a storehouse is used for the heat fused lake pitch, and a storehouse is used to store the heat fused lake pitch, owing to contain 33%～38% ash content in the lake pitch; So stirring that all must not stop in each jar; And stir shaft must be (horizontal tank) of horizontal direction, lake pitch is rolled up and down, otherwise the ash content in the lake pitch will precipitation separation.To the lake pitch that has melted, if discontinuous stirring, the time of in jar, depositing must not surpass 24h.
B. with rubber asphalt (or rubber modified bitumen) heating, temperature is at 170 ℃～185 ℃;
C. with added lake pitch and rubber asphalt (or rubber modified bitumen) in proportion, pump into respectively in the asphalt tank with whipping device and stir 25-50min, the mixture that mixes that obtains is finished product.Should continue to stir confession when depositing and use, the finished product temperature is not less than 170 ℃, and the finished product that mixes pumps into asphalt tank and supplies the bituminous concrete amalgamator to use.
This high performance modified bitumen has HV, high softening-point, and under the prerequisite of carrying out good proportioning design, asphalt has certain high temperature stability, can improve the ability of the anti-rutting deformation of bituminous concrete pavement high temperature and heavily loaded traffic.Improved the anti-low-temperature cracking ability under cold district and the heavy load; Make that pitch is anti-aging, antioxidant property improves; Have the excellent elasticity restorability, have the ability of higher fatigue resistance and opposing reflection crack, help prolongs life; Have good energy-conserving and environment-protective performance, can reduce the pollution that produces in the polymer modifiers production process.
High performance modified bitumen of the present invention can replace modifying asphalt such as SBS to mix the hot-mix asphalt mixture of types such as system SMA, AC, ATB, ARHM, OGFC, ATPB, AM, is used for the surface layer down of going up of making road engineering.
The invention has the beneficial effects as follows:
Adopt rock asphalt and rubber asphalt to carry out composite modified.It is had preferably mix, improve the use properties of pitch and asphalt, compare, have advantageous meliority with polymer modified asphalt.Be to solve an early stage new approach and the new method of damaging of bituminous pavement.
Lake pitch be oil under natural special conditions, oxidized, the product that aggregates into.Lake pitch is foremost in the world rock asphalt.In the domestic pitch lake in the Trinidad in marine site, Caribbean, the West Indies, contained the natural lake pitch of millions of ton of meter, be a kind of material of natural formation, chemical constitution mainly contains bituminous matter, resin and oil content to be formed, and also has the part insolubles.He itself is a pitch, rather than synthetic Chemicals, and its physics and chemical property and petroleum pitch are in full accord; Rubber asphalt (or rubber modified bitumen) also is a kind of than the isostatic modifying asphalt; Be that junked tire is processed into the modifying asphalt that is generated with the alloying reaction under certain condition of common matrix pitch behind the rubber powder of certain fineness; Because some good pavement performances that himself had; Both have good mixing property, and mixed pitch has obtained following improvement aspect use properties.
1. the penetration degree of composite modified asphalt reduces; Softening temperature raises, and viscosity increases, and has good high and low temperature performance; Because HV, the high softening-point of composite asphalt; Under the prerequisite of carrying out good proportioning design, asphalt has certain high temperature stability, the ability of anti-rutting deformation in the time of can improving bituminous concrete pavement high temperature.Research shows that the breaking strain of composite modified asphalt low-temperature bending is bigger 1.5～3 times than matrix pitch, and promptly under coldcondition, the flexibility of composite modified asphalt is superior to matrix pitch, and the anti-low-temperature cracking ability strengthens.
2. anti-aging, antioxidant property improves, and doughnut has just added certain inhibitor, anti UV agent etc. in process of production, therefore has good anti-aging and resistance of oxidation through composite modified asphaltic binder,
3. composite modified asphalt has the excellent elasticity restorability, because the existence of rubber powder granule, and rubber powder granule has the better elastic recovery performance; Therefore the pitch elastic recovery properties behind rubber powder modified is good, and the distortion that the road surface produces under loading action can recover rapidly through the back at load; Staying residual set will be very little; Both helped prolongs life, elasticity increase simultaneously also strengthens the mill resistance of surface layer, improves the safety performance of road.
4. composite modified asphalt mixture has the ability of higher fatigue resistance and opposing reflection crack, and the road surface thickness of use composite modified asphalt making can be than plain asphalt attenuate 1/3, and under the same terms, cold cracking can reduce 1/4～1/2.
5. use composite modified asphalt to build OGFC (open gradation antiskid wearing layer) and have good dewatering and noise reduction effect and high-temperature stability, high friction coefficient and Lu Biao construction depth are arranged simultaneously,, can reduce by 3 to 5 decibels of noises so have good cling property.
6. composite modified asphalt also has an outstanding advantage that polymkeric substance is incomparable, and there is not any problem in the regenerated using that Here it is after old pavement reaches work-ing life, needn't worry the technical barriers such as regeneration difficulty as polymkeric substance such as SBS.
Composite modified asphalt utilizes rock asphalt and recycles junked tire, comprehensive utilization refuse; Not only can increase substantially the pavement performance of bituminous pavement; Prolong service life of road surface, reduce the road construction cost, and play the effect of polluting, economizing on resources, fully utilize a large amount of junks of administering; Meet national environmental protection policy and the requirement of developing a circular economy, building a conservation-minded society, the concrete practice of implementing the strategy of sustainable development and implement scientific view of development especially.Have tangible economic and social benefit, therefore applying high-performance composite modified asphalt has crucial meaning.
Embodiment 1
(1). by the fusing of the lake pitch melting unit of special use and be heated to more than 175 ℃.The lake pitch melting unit; It has two storehouses to constitute: a storehouse is used for the heat fused lake pitch, and a storehouse is used to store the heat fused lake pitch, owing to contain 33%～38% ash content in the lake pitch; So stirring that all must not stop in each jar; And stir shaft must be (horizontal tank) of horizontal direction, lake pitch is rolled up and down, otherwise the ash content in the lake pitch will precipitation separation.To the lake pitch that has melted, if discontinuous stirring, the time of in jar, depositing must not surpass 24h.
(2). with rubber asphalt (or rubber modified bitumen) heating, temperature is at 170 ℃～185 ℃;
(3). with added lake pitch 1250kg and rubber asphalt (or rubber modified bitumen) 3750kg, pump into respectively in the asphalt tank with whipping device and stir 25-50min, the mixture that mixes that obtains is finished product.Should continue to stir confession when depositing and use, the finished product temperature is not less than 170 ℃, and the finished product that mixes pumps into asphalt tank and supplies the bituminous concrete amalgamator to use.
This high performance modified bitumen has HV, high softening-point, and under the prerequisite of carrying out good proportioning design, asphalt has certain high temperature stability, can improve the ability of the anti-rutting deformation of bituminous concrete pavement high temperature and heavily loaded traffic.Improved the anti-low-temperature cracking ability under cold district and the heavy load; Make that pitch is anti-aging, antioxidant property improves; Have the excellent elasticity restorability, have the ability of higher fatigue resistance and opposing reflection crack, help prolongs life; Have good energy-conserving and environment-protective performance, can reduce the pollution that produces in the polymer modifiers production process.
High performance modified bitumen of the present invention can replace modifying asphalt such as SBS to mix the hot-mix asphalt mixture of types such as system SMA, AC, ATB, ARHM, OGFC, ATPB, AM, is used for the surface layer down of going up of making road engineering.
Embodiment 2
Other step is identical with embodiment 1; Be with added lake pitch 1800kg and rubber asphalt (or rubber modified bitumen) 3000kg in (3); Pump into respectively in the asphalt tank with whipping device and stir 25-50min, the mixture that mixes that obtains is finished product.
Claims (2)
1. high-performance composite modified asphalt is characterized in that:
The weight proportion of lake pitch and rubber asphalt or rubber modified bitumen is
1～2∶4～3。
2. a kind of high-performance composite modified asphalt according to claim 1, its production craft step is:
A. by the lake pitch melting unit of special use fusing lake pitch and be heated to more than 175 ℃; In each jar, stir, and stir shaft must be horizontal direction that if discontinuous stirring, the time of in jar, depositing must not surpass 24h;
B. with rubber asphalt or rubber modified bitumen heating, temperature is at 170 ℃～185 ℃;
C. with added lake pitch and rubber asphalt or rubber modified bitumen in proportion, pump into respectively in the asphalt tank with whipping device and stir 25-50min, the mixture that mixes that obtains is finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105689402A CN102477224A (en) | 2010-12-02 | 2010-12-02 | High-performance composite modified asphalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105689402A CN102477224A (en) | 2010-12-02 | 2010-12-02 | High-performance composite modified asphalt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102477224A true CN102477224A (en) | 2012-05-30 |
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| CN2010105689402A Pending CN102477224A (en) | 2010-12-02 | 2010-12-02 | High-performance composite modified asphalt |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103497521A (en) * | 2013-09-18 | 2014-01-08 | 交通运输部公路科学研究所 | Vegetable oil modified asphalt composite and preparation method thereof |
| CN104448860A (en) * | 2014-11-30 | 2015-03-25 | 梁子兰 | Modification method of natural rubber-polyvinyl chloride petroleum asphalt |
| CN104496285A (en) * | 2014-12-29 | 2015-04-08 | 北京市道路工程质量监督站 | Rubber asphalt ultra-thin wearing layer mixture and rubber asphalt ultra-thin wearing layer with effects of reducing noise and increasing skid resistance |
| CN109374871A (en) * | 2018-10-10 | 2019-02-22 | 驻马店市公路工程开发有限公司 | A kind of bituminous composite modified test method |
| CN109440567A (en) * | 2018-09-07 | 2019-03-08 | 重庆建工住宅建设有限公司 | A kind of penetrated asphalt pavement construction method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101717586A (en) * | 2009-11-27 | 2010-06-02 | 长安大学 | Concentrated composition of waste rubber composite modified pitch and preparation and use method |
-
2010
- 2010-12-02 CN CN2010105689402A patent/CN102477224A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101717586A (en) * | 2009-11-27 | 2010-06-02 | 长安大学 | Concentrated composition of waste rubber composite modified pitch and preparation and use method |
Non-Patent Citations (4)
| Title |
|---|
| 《市政技术》 20051130 丁建平 湖沥青在北京道路改造工程中的应用 1-2 第23卷, 第6期 * |
| MAHARAJ ET AL: "The influence of recycled tyre rubber on the rheological properties of trinidad lake asphalt and trinidad petroleum bitumen", 《INTERNATIONAL JOURNAL OF APPLIED CHEMISTRY》 * |
| 丁建平: "湖沥青在北京道路改造工程中的应用", 《市政技术》 * |
| 杨军等: "《聚合物改性沥青》", 31 December 2007 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103497521A (en) * | 2013-09-18 | 2014-01-08 | 交通运输部公路科学研究所 | Vegetable oil modified asphalt composite and preparation method thereof |
| CN104448860A (en) * | 2014-11-30 | 2015-03-25 | 梁子兰 | Modification method of natural rubber-polyvinyl chloride petroleum asphalt |
| CN104496285A (en) * | 2014-12-29 | 2015-04-08 | 北京市道路工程质量监督站 | Rubber asphalt ultra-thin wearing layer mixture and rubber asphalt ultra-thin wearing layer with effects of reducing noise and increasing skid resistance |
| CN104496285B (en) * | 2014-12-29 | 2016-10-26 | 北京市道路工程质量监督站 | A kind of rubber asphalt ultra-thin wearing layer compound and there is the rubber asphalt ultra-thin wearing layer of noise reduction antiskid |
| CN109440567A (en) * | 2018-09-07 | 2019-03-08 | 重庆建工住宅建设有限公司 | A kind of penetrated asphalt pavement construction method |
| CN109374871A (en) * | 2018-10-10 | 2019-02-22 | 驻马店市公路工程开发有限公司 | A kind of bituminous composite modified test method |
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Application publication date: 20120530 |