CN105255205B - A kind of low-temp recovery asphalt and preparation method thereof - Google Patents
A kind of low-temp recovery asphalt and preparation method thereof Download PDFInfo
- Publication number
- CN105255205B CN105255205B CN201510689898.2A CN201510689898A CN105255205B CN 105255205 B CN105255205 B CN 105255205B CN 201510689898 A CN201510689898 A CN 201510689898A CN 105255205 B CN105255205 B CN 105255205B
- Authority
- CN
- China
- Prior art keywords
- asphalt
- low
- temp recovery
- temp
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 143
- 238000011084 recovery Methods 0.000 title claims abstract description 87
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 54
- 239000011230 binding agent Substances 0.000 claims abstract description 49
- 239000002699 waste material Substances 0.000 claims abstract description 26
- 229920002725 thermoplastic elastomer Polymers 0.000 claims abstract description 16
- 150000001875 compounds Chemical class 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000004094 surface-active agent Substances 0.000 claims abstract description 11
- 125000003118 aryl group Chemical group 0.000 claims abstract description 10
- 230000008929 regeneration Effects 0.000 claims description 19
- 238000011069 regeneration method Methods 0.000 claims description 19
- 230000001172 regenerating effect Effects 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 15
- 238000010276 construction Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 238000004064 recycling Methods 0.000 claims description 8
- 238000013461 design Methods 0.000 claims description 4
- 229920000136 polysorbate Polymers 0.000 claims description 4
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 2
- 239000012298 atmosphere Substances 0.000 claims description 2
- 239000003093 cationic surfactant Substances 0.000 claims description 2
- 238000009833 condensation Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- 230000036541 health Effects 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 claims description 2
- 239000002736 nonionic surfactant Substances 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims description 2
- 125000003011 styrenyl group Chemical class [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims description 2
- 229920001169 thermoplastic Polymers 0.000 claims description 2
- 239000004416 thermosoftening plastic Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 239000002344 surface layer Substances 0.000 abstract description 8
- 239000004575 stone Substances 0.000 abstract description 5
- 239000011295 pitch Substances 0.000 description 63
- 239000003795 chemical substances by application Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 239000000084 colloidal system Substances 0.000 description 6
- 239000011384 asphalt concrete Substances 0.000 description 5
- 230000008595 infiltration Effects 0.000 description 4
- 238000001764 infiltration Methods 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 239000003607 modifier Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000004781 supercooling Methods 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241001504664 Crossocheilus latius Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 239000011294 coal tar pitch Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The present invention relates to a kind of low-temp recovery asphalt and preparation method thereof.Methods described mainly uses low-temp recovery pitch binder, including：60 70 parts of asphalt, 30 40 parts of aromatic naphtha, 13 parts of thermoplastic elastomer (TPE)s, 0.3 0.5 parts of surfactants.The present invention develops the low-temp recovery asphalt prepared using the production of low-temp recovery pitch binder, and one is that waste asphalt mixture can be made to regenerate comprehensively, not merely with building stones resource, and farthest utilizes original aged asphalt resource；Two be the performance that low-temp recovery asphalt has new pitch compound, basic unit, bottom surface layer available for road, plays the maximum value that waste asphalt mixture is recycled.
Description
Technical field
The present invention relates to field of road, and in particular to a kind of low-temp recovery asphalt and preparation method thereof.
Background technology
Highway in China builds rapid, and the high-grade highway total kilometrage that is open to traffic has leapt to second place of the world, and just new with every 3 years
The speed for building 1 × 104km increases.Due to the comprehensive function of traffic loading and natural cause, bituminous paving is by certain time limit
Use, its surface layer is slowly thinning and gradually aging, it may appear that check crack, depression, rut, gather around the various diseases such as bag and progressively expand
Exhibition, has a strong impact on traffic safety.Asphalt concrete pavement, which is typically designed, to be limited to 15 years in year, in fact, usually using the time limit only 10
Year or so, that is to say, that every 10~15 years, asphalt concrete pavement was accomplished by overhauling once.The method for safeguarding processing in the past
Milling exactly is carried out to there is the road surface of disease, then making again, can so cause three major issues：One is to stack occupied ground
And cause environmental pollution；Two be to waste substantial amounts of non-renewable petroleum resources, again needed for making asphalt concrete pavement
A large amount of pitches and building stones us will be made to face huge resource pressure；Three be destruction ecological environment.Therefore, how to dispose annual
Tens million of tons of asphalt concrete pavement waste materials will turn into the problem of must facing and solve.Should using Recycling Old Asphalt Mixture
With technology, asphalt concrete pavement waste material is reused, is the effective way fundamentally solved the above problems.If to waste and old
Asphalt is reclaimed, and is reheated, and adds by experimental analysis and on demand appropriate pitch, regenerative agent and progress of gathering materials
Mix and stir, it is possible to be used for pavement structure as new pitch compound again, so, substantial amounts of raw material can be both saved, so as to save
About natural resources, is preserved the ecological environment, and the use requirement on road surface can be met again.
At present, the cold recycling technology of waste asphalt mixture is mainly using emulsified asphalt or foamed asphalt as cementing
Material, will add a certain amount of cement during waste and old compound regeneration production, be made a return journey by the hydration reaction of cement except in cementitious matter
Moisture, while improving the intensity of regenerating mixture.The original pitch and pitch newly added is useless gives full play to due effect,
What compound intensity was really played an important role is cement.The technical indicator of this regenerating mixture does not reach current specifications pitch
The requirement of compound technical indicator, its regenerating mixture belongs to stabilized with inorganic binder class material, is only used for the basic unit of road.
There is problems with existing useless bituminous mixture cold regeneration emulsified asphalt and foamed asphalt：One is that only make use of useless drip
Building stones in blue or green compound and more valuable pitch resource are not applied；Two be that emulsified asphalt and foamed asphalt regeneration are mixed
Close material and belong to inorganic binder, pavement performance is not so good as asphalt, is only used for the basic unit of road.Therefore emulsified asphalt and bubble
Foam cold asphalt rehabilitation technique just with mineral aggregate, and is worth higher pitch resource and not obtained to waste asphalt mixture
Make full use of, the regeneration to waste asphalt mixture resource is not thorough enough, also with larger exploitation space.
In addition, existing emulsified asphalt cold recycling technology also has complex manufacturing, easily demulsification, construction workability is poor, by force
The problems such as degree rises slow；The problem of foamed asphalt regeneration techniques has half-life short, construction workability difference, this is all this area skill
The technical barrier that art personnel are faced in the cold recycling technology field of waste asphalt mixture.
The content of the invention
In order to solve technical problem present in above-mentioned prior art, the pitch in waste asphalt mixture is made full use of to provide
Source, the useless Asphalt Mixture at Low Temperature regeneration techniques of present invention research and development, by using low-temp recovery pitch binder at 60-80 DEG C
Under the conditions of (compare cold renewal (20-60 DEG C)), the pitch and mineral aggregate of waste asphalt mixture are regenerated comprehensively, and to waste and old drip
Blue or green compound is matched somebody with somebody all of newly gathering materials without addition to adjust level, gives full play to recycling for waste asphalt mixture resource
Value, prepared reclaimed asphalt mixture construction workability is good, and the mixing of low-temp recovery pitch continues 10 hours all with stone roller
Press performance.
Specifically, the present invention relates to following technical scheme：
1st, a kind of low-temp recovery asphalt, it is low-temp recovery pitch binder and waste asphalt mixture is raw material
Be mixed with, low-temp recovery pitch binder percentage by weight be 2.0%-4.0%, the low-temp recovery pitch binder, its
It is made up of the component of following parts by weight：60-70 parts of asphalt, 30-40 parts of aromatic naphtha, 1-3 parts of thermoplastic elastomer (TPE)s, 0.3-
0.5 part of surfactant.
It is preferred that, asphalt is 70# or 90# high-quality pavement pitches.Through testing, pitch binder of the present invention, only
Energy asphalt, unavailable coal tar pitch and bitumen are replaced.
As liquid phase medium environment, there is provided needed for regenerative agent in low-temp recovery pitch binder preparation process for asphalt
Colloid, fragrant part, aged asphalt loses in the useless asphalt of supplement fragrant part and colloid, its consumption is difficult excessively, mistake
Many influences have the regeneration quality of low-temp recovery agent, can not provide good media environment again very little, and influence regeneration asphalt to mix
The adhesive property and pavement performance of material.
It is preferred that, aromatic naphtha is the tapped oil in low solidifying naphthene base lubrication oil subtractive process, and aromatic naphtha condensation point preferably is low
In -15 DEG C, rich in aromatic hydrocarbons, arene content is more than 70%, and 25 DEG C of viscosity are less than 50mm2/ s, flash-point is more than 180 DEG C；It is furthermore preferred that
Aromatic naphtha is normal two wires or the low solidifying tapped oil of atmosphere 3rd side cut.
Inventor has found that aromatic naphtha is the infiltration regenerative agent of low-temp recovery pitch binder, is also what aged asphalt was supplemented
Key component, has infiltration power of regeneration to aged asphalt, and its consumption is more, and the regeneration effect of regenerative agent is better, resulting
The cryogenic property of reclaimed asphalt mixture is better, but consumption is excessive, can influence to regenerate adhesion property, the adhesion strength of binding agent,
The intensity of reclaimed asphalt mixture is caused to decline, high-temperature behavior is poor.
It is preferred that, thermoplastic elastomer (TPE) is styrene series thermoplastic elastomer, including SBS, SBR etc., it is furthermore preferred that thermoplastic
Property elastomer be star-shaped sbs 4303 or linear SBS501 etc..
Thermoplastic elastomer (TPE) is the tackifier of low-temp recovery pitch binder, can improve the bonding of regeneration asphalt binding agent
Intensity, improves the cleavage strength and anti-water damage property of reclaimed asphalt mixture, and improves the high temperatures of reclaimed asphalt mixture
Energy.
It is preferred that, surfactant is nonionic surfactant or cationic surfactant, is preferably this disk S-60,
The mixture of S-80, tween, or span and tween.
Surfactant main function is the stability for improving regenerative agent, prevents regenerative agent precipitated and separated, and can strengthen again
Raw pitch binder and the adhesive property under useless asphalt damping interface, inventor has found, because low-temp recovery temperature exists
60-80 DEG C, useless asphalt moisture can not possibly all evaporate, so to consider moist caking property, dosage of surfactant is too
When few, it is impossible to play damping interface bonding, or adhesion strength is not enough, and the high-temperature behavior of regenerating mixture can be influenceed too much.
It can be flowed under low-temp recovery pitch binder normal temperature (25 DEG C) of the present invention, at design temperature (60-80 DEG C)
Under to aged asphalt have infiltration and softening power, recover aged asphalt viscoelastic property.According to a certain percentage by low-temp recovery
Pitch binder is mixed with the stirring of useless asphalt, the adhesion strength of low-temp recovery asphalt, volume is referred to and is given up
The pavement performance index of old asphalt mixture reaches the technical requirements of new pitch compound.
2nd, a kind of preparation method of low-temp recovery asphalt, comprises the following steps：
(1) by the useless asphalt sieved by design level with mixing after, be heated to 60-80 DEG C and insert to mix and stir in pot；
(2) a certain amount of low-temp recovery pitch binder is weighed according to bitumen aggregate ratio；
(3) produce：Asphalt temperature of being given up in pot is mixed and stirred is maintained at 60-90 DEG C, and stirring makes different screenings in 90 seconds
Useless asphalt is well mixed, and is added low-temp recovery pitch binder and is continued to stir 90 seconds, obtains low-temp recovery pitch and mix
Close material；Or mixed in heat on station or hot recycling equipment, useless asphalt is mixed and stirred 10 seconds under the conditions of 60-90 DEG C, first, then is sprayed into low
Warm regeneration asphalt binding agent, low-temp recovery asphalt can be produced by mixing and stirring 20 seconds.
It is preferred that, bitumen aggregate ratio is 2.0%-4.0%, and low-temp recovery pitch binder volume is bigger, reclaimed asphalt mixture
Performance is better, and performance is closer to new pitch compound, and volume is too big, i.e., bitumen aggregate ratio is excessive, reclaimed asphalt mixture bellding, simultaneously
Also result in waste；And volume is too small, aged asphalt performance recovery degree does not reach, low-temp recovery asphalt insufficient strength,
Asphalt is fugitive, and the pavement performance of reclaimed asphalt mixture can not meet code requirement.
It is preferred that, further preparation-obtained low-temp recovery asphalt is detected：Using Marshall into
Type method is molded, and forming temperature, in 80 DEG C of healths 24 hours, is pressed at 60-80 DEG C《Standard specification for construction and acceptance of highway asphalt pavement》
F40-2004 technical requirements detect regenerating mixture technical indicator.
The invention has the advantages that：
(1) reclaimed asphalt mixture of the present invention is prepared using low-temp recovery pitch binder, compared to more other
Cold renewal cementitious matter (emulsified asphalt, foamed asphalt), low-temp recovery pitch binder has not stratified, is not demulsified, does not isolate, no
Conglomeration, easily normal temperature (25 DEG C) good fluidity, conveying, can be stored for a long time；With production equipment is simple, simple production process, transport
With it is easy to use the advantages of；Low-temp recovery pitch binder consumption is less, makes low-temp recovery asphalt cost less than emulsification
Asphalt-regenerating mixture；Low-temp recovery pitch binder has good infiltration solvability to aged asphalt rich in fragrance point,
And the colloid of waste asphalt mixture loss and fragrant part are supplemented, aged asphalt is recovered viscoelastic property；Low-temp recovery pitch glues
Knot agent can make the building stones and aged asphalt of waste asphalt mixture all obtain comprehensive regeneration, without the new adjustment level of gathering materials of addition
Match somebody with somebody, so that it may produce reclaimed asphalt mixture, and regeneration temperature is low, energy-conserving and environment-protective.
(2) low-temp recovery bituminous mixture is simple, construction workability is good, utilizes existing hot batching plant or hot recycling
Equipment can be produced, low-temp recovery pitch mixing continue 10 hours all have roll performance.
(3) low-temp recovery performance of asphalt mixture is superior, available for the basic unit of road, bottom surface layer or middle surface layer, waste and old drip
Blue or green compound regeneration value is higher, farthest realizes the resource circulation utilization of waste asphalt mixture.
The present invention develops the low-temp recovery asphalt prepared using the production of low-temp recovery pitch binder, one be can
So that waste asphalt mixture regenerates comprehensively, not merely with building stones resource, and farthest provided using original aged asphalt
Source；Two be the performance that low-temp recovery asphalt has new pitch compound, basic unit, bottom surface layer available for road, is played
The maximum value that waste asphalt mixture is recycled；What is more important, low-temp recovery bitumen technology is waste and old due to make use of
Pitch resource in asphalt, low-temp recovery pitch binder consumption is less, makes low-temp recovery asphalt cost low
In emulsified asphalt regenerating mixture.Therefore, either the comprehensive utilization of resource, the performance of compound, construction workability be still again
Originally, low-temp recovery technique of the present invention all has obvious advantage for generation.
Embodiment
Embodiment 1
1st, low-temp recovery pitch binder preparation flow：Using equipment for production of emulsified bitumen unit (or with Forced Mixing performance
Equipment) production, 70# pitches are first heated to 130-140 DEG C in asphalt tank, it is defeated with 60 parts of flow proportionals by flowmeter
Go out.In solvesso tank, 1 part of SBS modifier, 0.3 part of surfactant are added successively, is sufficiently stirred for 10 minutes, passes through
Flowmeter is exported with 40 parts of flow proportionals, by colloid mill (or Forced Mixing equipment) and pitch ground and mixed, then through supercooling
Mixture is cooled to less than 90 DEG C by equipment, that is, obtains low-temp recovery pitch binder, and technical indicator is shown in Table -1.
The low-temp recovery pitch binder technical indicator of table -1
From table 1, regenerative agent kinematic viscosity at 25 DEG C is 2200mm2/ s, with preferable mobility, all fingers
Mark all meets technical requirements.
2nd, low-temp recovery asphalt is prepared with above-mentioned low-temp recovery pitch binder, its parts by weight composition is 2.0 parts
Regeneration asphalt binding agent, remaining is the useless asphalts of RAP.
It is at least more than two grades standby that old material RAP, which need to be sieved, and the particle more than design maximum particle diameter should again be sieved after broken
Divide and utilize.Disintegrating apparatus need to meet the cementitious matter opened between mineral aggregate particle and bond, but avoid the broken requirement of mineral aggregate as far as possible.
Sieve for two grades when, it is proposed that demarcated with 9.5mm.Sieve for 3 grades when, it is proposed that demarcated with 4.75mm and 9.5mm.Useless asphalt
RAP detection projects are shown in Table -2
The RAP of table -2 detection projects and quality requirement
3rd, in accordance with China《Standard specification for construction and acceptance of highway asphalt pavement》F40-2004, with the low-temp recovery pitch of above-mentioned preparation
Binding agent is cementitious matter, and waste asphalt mixture sieve is divided into three gears：0~5mm accounts for 22%, and 5~10mm accounts for 33%, 10~
20mm accounts for 45%.Using continuous dense bitumen compound AC-20 as asphalt type, code requirement F40-2004 requirements
The gradation composition of marshall' mechanic characteristic value designing asphalt mixture, the technological property of low-temp recovery asphalt is shown in Table -3.
The low-temp recovery pitch mixing of table -3 AC-20 expects technical indicator
All technical indicators of low-temp recovery asphalt are all met it can be seen from table -3《Asphalt highway is constructed
Technical specification》F40-2004 technical requirements, are completely suitable for basic unit and the bottom surface layer of road.
Embodiment 2
1st, low-temp recovery pitch binder preparation flow：Using equipment for production of emulsified bitumen unit (or with Forced Mixing performance
Equipment) production, 70# pitches are first heated to 130-140 DEG C in asphalt tank, it is defeated with 65 parts of flow proportionals by flowmeter
Go out.In solvesso tank, 2 parts of SBS modifiers, 0.4 part of surfactant are added successively, is sufficiently stirred for 10 minutes, passes through
Flowmeter is exported with 35 parts of flow proportionals, by colloid mill (or Forced Mixing equipment) and pitch ground and mixed, then through supercooling
Mixture is cooled to less than 90 DEG C by equipment, that is, obtains low-temp recovery pitch binder, and technical indicator is shown in Table -4.
The low-temp recovery pitch binder technical indicator of table -4
From table -4, regenerative agent kinematic viscosity at 25 DEG C is 2785mm2/ s, with preferable mobility, owns
Index all meets technical requirements.
2nd, low-temp recovery asphalt is prepared with above-mentioned low-temp recovery pitch binder, its parts by weight composition is 3.0 parts
Regeneration asphalt binding agent, remaining is the useless asphalts of RAP, is classified by third gear：0~5mm accounts for 22%, and 5~10mm accounts for 33%, 10
~20mm accounts for 45%, and technical indicator is shown in Table -5.
The low-temp recovery pitch mixing of table -5 AC-20 expects technical indicator
Pitch and SBS dosage are bigger it can be seen from table -5, and low-temp recovery asphalt technical indicator is better, and
All technical indicators of low-temp recovery asphalt are all met《Standard specification for construction and acceptance of highway asphalt pavement》F40-2004 technologies will
Ask, be completely suitable for basic unit and the bottom surface layer of road.
Embodiment 3
1st, low-temp recovery pitch binder preparation flow：Using equipment for production of emulsified bitumen unit (or with Forced Mixing performance
Equipment) production, 70# pitches are first heated to 130-140 DEG C in asphalt tank, it is defeated with 70 parts of flow proportionals by flowmeter
Go out.In solvesso tank, 3 parts of SBS modifiers, 0.5 part of surfactant are added successively, is sufficiently stirred for 10 minutes, passes through
Flowmeter is exported with 30 parts of flow proportionals, by colloid mill (or Forced Mixing equipment) and pitch ground and mixed, then through supercooling
Mixture is cooled to less than 90 DEG C by equipment, that is, obtains low-temp recovery pitch binder, and technical indicator is shown in Table -6.
The low-temp recovery pitch binder technical indicator of table -6
From table -6, regenerative agent kinematic viscosity at 25 DEG C is 3650mm2/ s, with preferable mobility, owns
Index all meets technical requirements.
2nd, low-temp recovery asphalt is prepared with above-mentioned low-temp recovery pitch binder, its parts by weight composition is 4.0 parts
Regeneration asphalt binding agent, remaining is that RAP gives up asphalt by third gear classification：0~5mm accounts for 22%, and 5~10mm accounts for 33%, 10
~20mm accounts for 45%, and technical indicator is shown in Table -7.
The low-temp recovery pitch mixing of table -7 AC-20 expects technical indicator
Pitch and SBS dosage are bigger it can be seen from table -7, and low-temp recovery asphalt technical indicator is better, and
All technical indicators of low-temp recovery asphalt are all met《Standard specification for construction and acceptance of highway asphalt pavement》F40-2004 technologies will
Ask, be completely suitable for basic unit and the bottom surface layer of road.
Claims (8)
1. a kind of low-temp recovery asphalt, it is that low-temp recovery pitch binder and waste asphalt mixture mix for raw material
Prepare, it is characterised in that percentage by weight shared by low-temp recovery pitch binder is 2.0%-4.0%, the low-temp recovery drip
Blue or green binding agent its be made up of the component of following parts by weight：60-70 parts of asphalt, 30-40 parts of aromatic naphtha, 1-3 parts of thermoplastic elastomehcs
Property body, 0.3-0.5 parts of surfactants；
The aromatic naphtha is the tapped oil in low solidifying naphthene base lubrication oil subtractive process, and the condensation point of the aromatic naphtha is less than -15 DEG C,
Arene content is more than 70%, and 25 DEG C of viscosity are less than 50mm2/s, and flash-point is more than 180 DEG C；
The thermoplastic elastomer (TPE) is styrene series thermoplastic elastomer；
The surfactant is cationic surfactant or nonionic surfactant.
2. low-temp recovery asphalt according to claim 1, it is characterised in that asphalt is 70# or 90# high-quality
Road asphalt.
3. low-temp recovery asphalt according to claim 1, it is characterised in that aromatic naphtha is normal two wires or atmosphere 3rd side cut
Low solidifying tapped oil.
4. low-temp recovery asphalt according to claim 1, it is characterised in that thermoplastic elastomer (TPE) be SBS or
SBR。
5. low-temp recovery asphalt according to claim 1, it is characterised in that thermoplastic elastomer (TPE) is star-like
SBS4303 or linear SBS501.
6. low-temp recovery asphalt according to claim 1, it is characterised in that surfactant is this disk S-60,
The mixture of S-80, tween, or span and tween.
7. the preparation method of the low-temp recovery asphalt described in claim any one of 1-6, comprises the following steps：
(1) by the useless asphalt sieved by design level with mixing after, be heated to 60-80 DEG C and insert to mix and stir in pot；
(2) a certain amount of low-temp recovery pitch binder is weighed according to bitumen aggregate ratio 2.0%-4.0%；
(3) produce：Asphalt temperature of being given up in pot is mixed and stirred is maintained at 60-80 DEG C, and stirring makes the useless drip of different screenings for 90 seconds
Blue or green compound is well mixed, and is added low-temp recovery pitch binder and is continued to stir 90 seconds, obtains low-temp recovery asphalt；
Or
Mixed in heat on station or hot recycling equipment, useless asphalt is mixed and stirred 10 seconds under the conditions of 60-80 DEG C, first, then sprays into low temperature
Regeneration asphalt binding agent, low-temp recovery asphalt can be produced by mixing and stirring 20 seconds.
8. method according to claim 7, it is characterised in that carried out to preparation-obtained low-temp recovery asphalt
Detection：It is molded using Mashell molding method, forming temperature, in 80 DEG C of healths 24 hours, is pressed at 60-80 DEG C《Highway asphalt road
Surface construction technical specification》F40-2004 technical requirements detect regenerating mixture technical indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510689898.2A CN105255205B (en) | 2015-10-21 | 2015-10-21 | A kind of low-temp recovery asphalt and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510689898.2A CN105255205B (en) | 2015-10-21 | 2015-10-21 | A kind of low-temp recovery asphalt and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105255205A CN105255205A (en) | 2016-01-20 |
| CN105255205B true CN105255205B (en) | 2017-08-25 |
Family
ID=55095159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510689898.2A Active CN105255205B (en) | 2015-10-21 | 2015-10-21 | A kind of low-temp recovery asphalt and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105255205B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105693143B (en) * | 2016-02-04 | 2017-12-05 | 武汉市市政建设集团有限公司 | High solids content is modified the method that mid temperature pitch prepares City Road Maintenance material |
| CN106007491B (en) * | 2016-06-23 | 2018-04-24 | 四川国星高分子树脂有限公司 | Normal-temperature regeneration asphalt and preparation method thereof |
| KR101672823B1 (en) * | 2016-08-02 | 2016-11-04 | 주식회사 한수도로산업 | Modified nonvolatile cold asphalt binder and recycled asphalt mixture using thereof |
| CN108485523B (en) * | 2018-03-12 | 2020-05-19 | 中交第一公路勘察设计研究院有限公司 | Microwave rapid heating promoter for asphalt pavement and preparation method and use method thereof |
| CN109232974B (en) * | 2018-08-15 | 2021-08-17 | 合肥孚成活性材料技术开发有限公司 | Normal-temperature regenerant for recycled asphalt pavement materials |
| CN110194612B (en) * | 2019-03-26 | 2021-11-30 | 东南大学 | Recycled asphalt concrete material capable of guaranteeing low-temperature performance and design method thereof |
| CN112142369A (en) * | 2020-08-27 | 2020-12-29 | 江苏现代路桥有限责任公司 | Production process of recycled asphalt mixture |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101848969A (en) * | 2007-09-07 | 2010-09-29 | Alm控股公司 | Warm mix asphalt binder compositions containing lubricating additives |
| CN101948622A (en) * | 2010-09-21 | 2011-01-19 | 东南大学 | Eco-friendly asphalt regenerant and preparation method thereof |
| CN103436038A (en) * | 2013-07-16 | 2013-12-11 | 交通运输部公路科学研究所 | Waste and old road asphalt regenerating agent and preparation method thereof |
| CN104177850A (en) * | 2014-08-26 | 2014-12-03 | 北京建筑大学 | Composite warm-mixing regenerant and preparation method thereof |
| CN104194358A (en) * | 2014-08-26 | 2014-12-10 | 北京建筑大学 | Warm-mixing regenerated asphalt and preparation method thereof |
| CN104211326A (en) * | 2014-08-26 | 2014-12-17 | 北京建筑大学 | Regenerated warm mix asphalt mixture and preparation method thereof |
-
2015
- 2015-10-21 CN CN201510689898.2A patent/CN105255205B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101848969A (en) * | 2007-09-07 | 2010-09-29 | Alm控股公司 | Warm mix asphalt binder compositions containing lubricating additives |
| CN101948622A (en) * | 2010-09-21 | 2011-01-19 | 东南大学 | Eco-friendly asphalt regenerant and preparation method thereof |
| CN103436038A (en) * | 2013-07-16 | 2013-12-11 | 交通运输部公路科学研究所 | Waste and old road asphalt regenerating agent and preparation method thereof |
| CN104177850A (en) * | 2014-08-26 | 2014-12-03 | 北京建筑大学 | Composite warm-mixing regenerant and preparation method thereof |
| CN104194358A (en) * | 2014-08-26 | 2014-12-10 | 北京建筑大学 | Warm-mixing regenerated asphalt and preparation method thereof |
| CN104211326A (en) * | 2014-08-26 | 2014-12-17 | 北京建筑大学 | Regenerated warm mix asphalt mixture and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105255205A (en) | 2016-01-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105255205B (en) | A kind of low-temp recovery asphalt and preparation method thereof | |
| CN100577736C (en) | Asphalt pavement conditioning curing agent and preparation method thereof | |
| JP6474085B2 (en) | Novel asphalt binder additive composition and method of use | |
| CN101768914B (en) | Pavement structure for structure transfer and performance recovery of semi-rigid base asphalt pavement | |
| CN105199407B (en) | A kind of low-temp recovery pitch binder and its application | |
| CN103452025A (en) | Method for quickly repairing and maintaining expressway pavement | |
| CN103468006A (en) | Material for waste asphalt regeneration pavement and preparation method of material | |
| CN102618046A (en) | SBS (styrene-butadiene-styrene) modified regenerant, preparation method thereof and asphalt regeneration method | |
| CN105586819B (en) | A kind of bituminous paving stress reflexion crack patching material and method for repairing and mending | |
| CN111902487A (en) | Sterol-containing asphalt emulsion surface treatment | |
| RU2649345C2 (en) | Methods for reducing asphalt pavement thickness, increasing aggregate-to-aggregate contact of asphalt paving materials, and improving low temperature cracking performance of asphalt paving materials | |
| CN104594151B (en) | Water drainage anti-cracking type cold-recycling pavement structure | |
| CN104119032A (en) | A regenerating method of an SBS asphalt mixture with a high RAP mixing amount | |
| CN103254652A (en) | Method for carrying out cold-recycling on waste asphalt mixture by taking aromatic oil as recycling agent | |
| CN104058638A (en) | Bituminous mixture | |
| CN101736675B (en) | Forming method of cold regeneration upper substrates on damaged pavement and cold regeneration material combined structure | |
| CN104652212A (en) | Improved construction method of old cement concrete pavement | |
| CN102924936A (en) | Bituminous cold reclaiming agent and application of bituminous cold reclaiming agent in cold reclaiming of bituminous concrete | |
| CN104072024A (en) | Preparation process of asphalt mixture | |
| CN109021595A (en) | A kind of hot recycling steel slag asphalt mixture | |
| CN101824176A (en) | Asphalt heat recycling modifier | |
| CN102795807A (en) | High-definition asphalt pavement waste regeneration technology | |
| CN101817985B (en) | Modified asphalt regeneration agent as well as preparation method and application thereof | |
| CN114075053B (en) | Ultrathin overlay mixture for preventive maintenance of asphalt pavement, preparation method and additive | |
| CN109534723A (en) | A kind of preparation method of warm-mixed recycled asphalt mixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231025 Address after: No. 91-1, Nongyi Operation Area, Dananban Farm, Dananban Town, Zhangpu County, Zhangzhou City, Fujian Province, 363200 Patentee after: Lufeng Shangke (Fujian) New Materials Co.,Ltd. Address before: Room 602, Unit 3, Building 5, Yiheyuan, Jianda Garden Community, Fengqi Road, Licheng District, Jinan City, Shandong Province, 250101 Patentee before: Wang Lizhi |
|
| TR01 | Transfer of patent right |