CN105733272B - A kind of anti-aging modifying agent of Thief zone and preparation method thereof - Google Patents
A kind of anti-aging modifying agent of Thief zone and preparation method thereof Download PDFInfo
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Abstract
The present invention is applied to road engineering material field.A kind of anti-aging modifying agent of Thief zone, it is characterised in that it comprising light components, anatonosis component, plasticizing component, appearance and component, anti-aging components, water, SBS components by being prepared, and mass fraction is shared by each raw material：35 45 parts of light components, 46 parts of anatonosis component, 20 25 parts of plasticizing component hold and 45 parts of component, 5 10 parts of anti-aging components, 48 parts of water, 18 25 parts of SBS components.The anti-aging modifying agent of Thief zone of the present invention, which is not only handled by the polarityization of light components, improves its osmosis to aged asphalt, improve regeneration effect, inhibit secondary aging of regeneration asphalt during mix and military service simultaneously, and improves the viscous tough performance of pitch again.Not only its Marshall stability reaches 12KN to ageing-resistant reclaimed asphalt mixture of the present invention, and flexural-tensile strain is obviously improved up to 2568 μ ε, ageing-resistant performance, makes it possible high additive reclaimed asphalt mixture applied to pavement surface structure.
Description
Technical field
The present invention is applied to road engineering material field, and in particular to a kind of anti-aging asphalt surface hot reproduction modification
Agent preparation method and its application (being used to prepare hot recycling mixture).
Background technology
With the development that China's infrastructure in recent decades is advanced by leaps and bounds, the nineties so far large batch of urban road and
Highway builds up between city so that China's kilometer traffic total kilometrage leaps to the first in the world, and national expressway network is built up substantially.
The bituminous paving of domestic early stage making enters successively to be conserved, repairs, overhauling the stage, it is estimated that during national " 13 ", China
The asphalt roads that there will be over total mileage 41% is overhauled, and the discarded asphalt of generation is up to 3,600,000,000 tons,
About 1.57 hundred million tons or so of discarded pitch, if serious environmental pollution and the wasting of resources will be caused by carrying out accumulation or landfill disposal！
The increase of the cost of raw material in short supply for leading to new pitch road surface of domestic petroleum, building stones, and discarded bituminous concrete is made profits again
With can not only weaken the problem of energy shortage, while reducing discarded bituminous concrete accumulation or filling occupied space, prevents
Only the pollution of environment, ecological environment are effectively protected, and meet National Sustainable Development Strategies, therefore, in recent years to drip
The regeneration on green road surface gets the attention and pays much attention to.
Though the cold renewal method used at present increases the utilization rate of discarded asphalt, by discarded bituminous concrete
When black material uses, aged asphalt therein do not re-used, the mechanical property of the regenerated road surface of preparation, pavement performance and
Endurance quality is poor, and Years Of Service is short, is only used for rudimentary highway pavement or base, and the cost recovery again after 3-4 is significantly
It improves, limits its popularization and application.Therefore, hot in-place recycling is favored by more relevant departments, the regenerative agent generally used
It is that can make the softening point and needle of aged asphalt in petroleum by-product, plant tapped oil, industry, life waste oil rich in fragrance point
The partial properties such as in-degree are restored, but the appearance and effect of this regenerative agent and aged asphalt be not notable, in regeneration construction mix process
In, it is vulnerable to the influence volatilization of high temperature, causes regeneration effect poor, while due to ambient heat oxygen, ultraviolet during road surface is on active service
The effect of light etc. makes light components that thermal degradation, oxidation reaction occur, accelerates the aging of regeneration asphalt, seriously affect road surface
Useful life longevity energy.Meanwhile the discarded pitch volume that heated tool butt-welding uses is high, grading is unstable, and different mix conditions keep it mixed
It is different to close material mix grading, causes the mixture prepared to gather materials actual distribution difference, mixture performance is caused to differ greatly, and it is pre-
Phase effect difference is larger, the problems such as stability is insufficient, endurance quality is poor occurs.
Therefore, it is necessary to carry out whole control by regenerative processes such as the designs of preparation and mixture to regenerative agent, to carry
High regeneration effect improves road surface pavement performance and durability.
Invention content
The purpose of the present invention is to provide anti-aging modifying agent of a kind of Thief zone and preparation method thereof, the Thief zone is anti-
Aging modifying agent not only possesses the characteristics of conventional regeneration agent restores pitch colloidal property, also mixes anti-aging components, inhibits mixing
Aging and road surface of the material in regenerative process due to the caused regeneration asphalt of hot oxygen effect are during military service by ultraviolet, hot
The ageing process of oxygen effect.
To achieve the above object, the technical solution adopted in the present invention is：A kind of anti-aging modifying agent of Thief zone, feature
It is it by comprising light components, anatonosis component, plasticizing component, appearance and component, anti-aging components, water (deionized water), SBS groups
Divide and be prepared, mass fraction is shared by each raw material：35-45 parts of light components, 4-6 parts of anatonosis component, plasticizing component 20-25
Part, hold and 4-5 parts of component, 5-10 parts of anti-aging components, 4-8 parts of water (deionized water), 18-25 parts of SBS components.
The light components are to subtract third fractional oil (or subtract three line tapped oil), second line of distillation oil, rubber oil or aromatic aldehyde tapped oil
One or more of (arbitrary proportion refers to for mixing in any proportion：The lower limit value of mass percent shared by raw material is big
In 0%, upper limit value is same as below less than 100%).
The anatonosis group is divided into sodium bromide, sodium chloride one or more mix in any proportion.
The plasticizing component is C5 Petropols, nine copolymer resins of light dydrocarbon carbon, phenolic resin, terpene phenol resin, coumarone
Resin, the one or more of of rosin resin mix in any proportion.
The appearance and group are divided into the one or more of double alkyl triamine bi-quaternary ammonium salts or dimethyldioctadecylammonium ammonium chloride
It mixes in any proportion.
The anti-aging components are that anti-ultraviolet ageing component and heat resistanceheat resistant oxygen component mix component again, and wherein anti-ultraviolet ageing agent accounts for
Mass percent is 85~95%, and it is 5~15% that heat resistanceheat resistant oxygen component, which accounts for mass percent,.
The anti-ultraviolet ageing group is divided into DK3 type average wafer thickness and is less than 25nm nanoscale nano imvites；Heat resistanceheat resistant oxygen
Group is divided into heat resistanceheat resistant oxygen agent B225, and heat resistanceheat resistant oxygen agent B225 is：67% (quality) primary antioxidant, 168 (three [2.4- di-tert-butyl-phenyls]
Phosphite ester) and 33% (quality) auxiliary anti-oxidant, 1010 (four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythrites
Ester) compound.
It has been investigated that light components under the action of anatonosis component, occur halogen substitution reaction, make in light components
Aromatic hydrocarbon polarity increases the polarity of light components, it is made to be more easy to penetrate into polar colloid and asphalitine, ensures revival
Fruit；And the appearance and component being added, it can make light components that emulsification benefit occur, significantly improve anti-aging components in light components
Peptizaiton, hold after moisture evaporation and component intercalation can occur with anti-aging components be that component of dissolving each other enters montmorillonite
Interlayer makes interlamellar spacing increase, and carries out organic modification to montmorillonite, further the anti-aging components in regenerative agent is promoted to regenerate
The appearance of pitch and raising regeneration effect.
The above-mentioned anti-aging modifying agent of Thief zone is excellent to the regeneration effect of aged asphalt, improves the durability of regeneration asphalt
Can, significantly extend pavement usage durability, but further to improve regeneration asphalt performance, raw material further include SBS components,
SBS groups are divided into Styrene-Butadiene-Styrene Block Copolymer (SBS), Styrene-Butadiene-Styrene Block Copolymer
(SBS) mass fraction shared by is：18-25 parts.
Research finds that SBS is swollen in modifying agent, forms network cross-linked structure, and light components enter illiteracy with SBS and take off
Between the synusia of soil, montmorillonite layer is made to remove, montmorillonite and SBS and asphaltene molecule segment generate certain intermolecular force and
Many crosslinking points are formed, that is, improves the compatibility between SBS and pitch, further improves the viscous toughness and durability of regeneration asphalt
Energy.
The preparation method of the above-mentioned anti-aging modifying agent of a kind of Thief zone, it is characterised in that include the following steps：
1) it is by mass fraction shared by each raw material：35-45 parts of light components, 4-6 parts of anatonosis component, plasticizing component 20-25
Part, hold and 4-5 parts of component, 5-10 parts of anti-aging components, 4-8 parts of water (deionized water), 18-25 parts of SBS components choose lightweight group
Point, anatonosis component, plasticizing component, appearance and component, anti-aging components, water (deionized water) and SBS components；
2) it will hold and be dissolved in water (deionized water) with component and anti-aging components, and stir to get solution I；
3) light components are heated to 115~120 DEG C, mix anatonosis component, high-speed shearing machine is with 800~1000r/min
Obtain system II；
4) solution I is added in system II, 30~45min is sheared with 1000~2000r/min at 115~120 DEG C, steams
Moisture in hair removal solution, obtains material III；
5) temperature is promoted to 140~145 DEG C, plasticizing component is added in material III, sheared with 2000~3000r/min
15~20min obtains material IV；
6) temperature is promoted to 170~175 DEG C, SBS components is added in material IV, 20 are sheared with 3000~5000r/min
~30min keeps the temperature 15~20min at 130~135 DEG C, obtains the anti-aging modifying agent of Thief zone.
The application of the anti-aging modifying agent of Thief zone, it is characterised in that it is used to prepare anti-aging reclaimed asphalt mixture, including
Following steps：
1) each component and mass percent are as follows：Reclaimed asphalt mixture RAP-1 (grain size is more than 4.75mm) 20~35%,
Reclaimed asphalt mixture RAP-2 (grain size is less than 4.75mm, is free of 4.75mm) 10~15%, newly gathers materials 40~60%, and miberal powder 7~
15% the above is mass percent (the sum of mass percent shared by each raw material is 100%)；
It mixes outside：New pitch is reclaimed asphalt mixture RAP-1, reclaimed asphalt mixture RAP-2 1 and gross mass of newly gathering materials
3.2~4.0%；
It mixes outside：The addition of the anti-aging modifying agent of Thief zone, the anti-aging modifying agent of Thief zone is reclaimed asphalt mixture
The 8~10% of the aged asphalt content that extraction process in RAP-1 and reclaimed asphalt mixture RAP-2 measures；
2) reclaimed asphalt mixture RAP-1 and reclaimed asphalt mixture RAP-2 are put into premixing in Marshall mix instrument, added
Enter the anti-aging modifying agent mix of Thief zone, sequentially add newly gather materials, new pitch and miberal powder, mix, obtain anti-aging regeneration asphalt
Mixture.
The above-mentioned premixing time is 20~30s, and premixing temperature is 155~165 DEG C；Duration of mixing 60 after above-mentioned each charging
~90s, mix temperature are 170~175 DEG C.
The anti-aging reclaimed asphalt mixture, to reduce outside pitch analysis leakage situation mixed with a certain amount of fiber stabilizer,
Fiber stabilizer is polyester fiber or wood fibre stabilizer, and fiber stabilizer is the 0.3%~0.4% of new aggregate quality, fine
It ties up stabilizer and newly gathers materials, is added together with fiber stabilizer, new pitch and miberal powder.
It is described it is new gather materials for basalt or limestone aggregates, particle diameter distribution is：13.2~16mm, 10~13.2mm, 5~
10mm and Machine-made Sand (＜ 4.75mm).Use 3~4h of preheating at first 190~195 DEG C.
The miberal powder is limestone ground blast furnace slag, and grain size is less than 0.6mm, and the mass percent less than 0.075mm exists
Between 75~100%.
The new pitch is 1-D modified pitch or high-viscosity high-elasticity modified pitch, uses first 160~165 DEG C preheating 3h.Initially
Incorporation is calculated with oil film method, oil film thickness, selects 8~9mm.
Compared with common regenerative agent, feature is the anti-aging modifying agent of Thief zone of the present invention：
(1) anatonosis component is added in light components, halogen substitution reaction occurs, makes the aromatic hydrocarbon polarity in light components
Change, increase the polarity of light components, it is made to be more easy to penetrate into polar colloid and asphalitine, ensures that regeneration effect, incorporation contain
Hold the solution with component (holding mixture) and anti-aging components, so that light components is generated emulsification, to promote anti-aging components uniform
It is dispersed in light components, after moisture evaporation, holds and component (holding mixture) enters nano imvite interlayer, it is changed into property is organic
Property, increase the appearance in nano imvite and light components and effect, when being incorporated into reclaimed asphalt mixture RAP-1 and regeneration asphalt
In mixture RAP-2 when mix, organo montmorillonite intercalation easily in pitch wherein is distributed, and can hinder the heat fortune of asphaltene molecule
It is dynamic, while reflecting the absorption that ultraviolet light reduces light, improve the temperature sensitivity and resistance to UV aging of pitch.Antioxidant
B225 inhibits the organic molecule in pitch under the effect of hot oxygen under the synergistic effect of primary antioxidant 168 and auxiliary anti-oxidant 1010
Degradation and the components transfer process such as oxidation, reduce the loss of light components, be effectively improved the thermal oxidation resistance performance of pitch.Its is resistance to
Ageing properties are largely promoted, and needle penetration, the 10 DEG C of ductilities of regeneration asphalt short-term, after long-term aging test are carried out
Residual ratio respectively reaches 85.9%, 81.7%, and ageing-resistant performance is significantly improved.
(2) Styrene-Butadiene-Styrene Block Copolymer (SBS) mixed anti-aging changes in the Thief zone of the present invention
Property agent in generate swelling, formed network cross-linked structure, while identifying oneself with reclaimed asphalt mixture RAP-1 and regeneration asphalt mixing
After expecting in the aged asphalt in RAP-2, SBS and asphaltene molecule enter between the synusia of montmorillonite, make its limellar stripping, montmorillonite
Certain molecular force is generated between lamella and asphaltene molecule and SBS molecules, improving SBS, montmorillonite and asphaltene molecule will
Compatibility performance, the common toughening double effects for playing organic elastomeric polymer body toughening and inorganic ions, to further carry
The endurance quality of high regeneration asphalt glues tough performance.
(3) ageing-resistant reclaimed asphalt mixture of the invention is mixed to discarded pitch compared with common reclaimed asphalt mixture
It closes material and carries out stepping processing, and suitably increase coarse aggregate (RAP-1) volume of RAP, control fine aggregate incorporation, make its grading model
It encloses and meets the requirement of SMA-16 gradings, while the total volumes of RAP being made to reach 50%, improve regeneration rate.It is mixed to improve regeneration asphalt
Material endurance quality is closed, oil film thickness is significantly improved, while mixing basis weight of fiber and ensureing the percent of pass of 0.075mm 9-10%
Between, the problems such as increasing structure pitch content in mixture, reduce analysis leakage and the bellding of mixture.The regeneration asphalt of preparation mixes
The Marshall stability of material reaches 13.5KN, leakage analysis losing 0.06%, and dynamic stability reaches 4829 times/mm, freeze-thaw split intensity
Than reaching 91.6%, the immersion residual stability for carrying out the asphalt after aging reaches 89.7%, has preferable height
Warm nature energy and ageing-resistant performance, indices are satisfied by technical requirement, meet high grade pavement face layer asphalt
It can require, expand reclaimed asphalt mixture application range, improve regeneration rate, beneficial to the further development of regeneration techniques.
The beneficial effects of the invention are as follows：The anti-aging modifying agent of the Thief zone not only possesses conventional regeneration asphalt
The regenerative agent that uses restores the characteristics of pitch colloidal property, also mixes anti-aging components, inhibit mixture in regenerative process by
The ageing process that the aging of regeneration asphalt caused by hot oxygen acts on and road surface are acted on during military service by ultraviolet, hot oxygen.
The anti-aging modifying agent of Thief zone of the present invention, which is not only handled by the polarityization of light components, improves it to aging drip
Green osmosis improves regeneration effect, while inhibiting secondary aging of reclaimed asphalt mixture during mix and military service,
And the viscous tough performance of pitch is improved again.Not only its Marshall stability reaches ageing-resistant reclaimed asphalt mixture of the present invention
12KN, flexural-tensile strain are obviously improved up to 2568 μ ε, ageing-resistant performance, and high additive reclaimed asphalt mixture is made to be applied to road
Face surface layer structure is possibly realized.
Specific implementation mode
Embodiment 1
A kind of anti-aging modifying agent of Thief zone, mass fraction shared by each raw material are：35 parts of light components, 4 parts of anatonosis component,
25 parts of plasticizing component holds and 4 parts of component, 10 parts of anti-aging components, 4 parts of deionized water, 18 parts of SBS components.The light components
To subtract third fractional oil (or subtract three line tapped oil), the anatonosis group is divided into sodium bromide, and the plasticizer is C5 Petropols, described
Hold and group is divided into dimethyldioctadecylammonium ammonium chloride, nano imvite and heat resistanceheat resistant oxygen agent B225 matter in the age resister component
It is 95% to measure percentage:5%, SBS group are divided into Styrene-Butadiene-Styrene Block Copolymer (SBS, same as below).
A kind of preparation method of the above-mentioned anti-aging modifying agent of Thief zone, includes the following steps：
1) above-mentioned, selection raw material is pressed；
2) it will hold and be dissolved in deionized water with component and anti-aging components, and stir to get solution I；
3) light components are heated to 115 DEG C, mix anatonosis component, high-speed shearing machine obtains system II with 800r/min；
4) solution I is added in system II, 45min is sheared with 1000r/min at 120 DEG C, in evaporative removal solution
Moisture obtains material III；
5) temperature is promoted to 145 DEG C, plasticizing component is added in material III, material is obtained with 2000r/min shearings 20min
Ⅳ；
6) temperature is promoted to 175 DEG C, SBS components is added in material IV, 20min is sheared with 5000r/min, at 135 DEG C
Lower heat preservation 20min obtains the anti-aging modifying agent of Thief zone.
Embodiment 2
A kind of anti-aging modifying agent of Thief zone, mass fraction shared by each raw material are：35 parts of light components, 5 parts of anatonosis component,
20 parts of plasticizing component holds and 5 parts of component, 7 parts of anti-aging components, 8 parts of deionized water, 20 parts of SBS components.The light components are
Subtract third fractional oil (or subtract three line tapped oil), the anatonosis group is divided into sodium bromide, and the plasticizer is C5 Petropols, the appearance
It is divided into dimethyldioctadecylammonium ammonium chloride with group, nano imvite and heat resistanceheat resistant oxygen agent B225 mass in the age resister component
Percentage is 90:10,
A kind of preparation method of the above-mentioned anti-aging modifying agent of Thief zone, includes the following steps：
1) above-mentioned, selection raw material is pressed；
2) it will hold and be dissolved in deionized water with component and anti-aging components, and stir to get solution I；
3) light components are heated to 120 DEG C, mix anatonosis component, high-speed shearing machine obtains system II with 800r/min；
4) solution I is added in system II, 30min is sheared with 2000r/min at 120 DEG C, in evaporative removal solution
Moisture obtains material III；
5) temperature is promoted to 145 DEG C, plasticizing component is added in material III, material is obtained with 2000r/min shearings 20min
Ⅳ；
6) temperature is promoted to 170 DEG C, SBS components is added in material IV, 20min is sheared with 5000r/min, 130~
15min is kept the temperature at 135 DEG C, obtains the anti-aging modifying agent of Thief zone.
Embodiment 3
A kind of anti-aging modifying agent of Thief zone, mass fraction shared by each raw material are：35 parts of light components, 6 parts of anatonosis component,
20 parts of plasticizing component holds and 4 parts of component, 5 parts of anti-aging components, 5 parts of deionized water, 25 parts of SBS components.The light components are
Subtract third fractional oil (or subtract three line tapped oil), the anatonosis group is divided into sodium bromide, and the plasticizer is C5 Petropols, the increasing
Solvent is acrylamide, and the modifying agent is SBS, and the antioxidant is organo montmorillonite and heat resistanceheat resistant oxygen agent B225 mass percentages
Than being 90:10,
A kind of preparation method of the above-mentioned anti-aging modifying agent of Thief zone, includes the following steps：
1) above-mentioned, selection raw material is pressed；
2) it will hold and be dissolved in deionized water with component and anti-aging components, and stir to get solution I；
3) light components are heated to 120 DEG C, mix anatonosis component, high-speed shearing machine obtains system II with 1000r/min；
4) solution I is added in system II, 45min is sheared with 1000r/min at 120 DEG C, in evaporative removal solution
Moisture obtains material III；
5) temperature is promoted to 140 DEG C, plasticizing component is added in material III, shearing 15~20min with 2000r/min obtains
Material IV；
6) temperature is promoted to 175 DEG C, SBS components is added in material IV, 30min is sheared with 4500r/min, 130~
20min is kept the temperature at 135 DEG C, obtains the anti-aging modifying agent of Thief zone.
Embodiment 4
Weighing 45 parts of light components, 4 parts of anatonosis component, 20 parts of plasticizing component holds and 4 parts of component, 5 parts of anti-aging components,
4 parts of deionized water, 18 parts of SBS components.The light components are to subtract third fractional oil (or subtract three line tapped oil), the anatonosis component
For sodium bromide, the plasticizer is C5 Petropols, and the appearance and group are divided into dimethyldioctadecylammonium ammonium chloride, described anti-ageing
Nano imvite and heat resistanceheat resistant oxygen agent B225 mass percents are 85 in agent component:15,
A kind of preparation method of the above-mentioned anti-aging modifying agent of Thief zone, includes the following steps：
1) above-mentioned, selection raw material is pressed；
2) it will hold and be dissolved in deionized water with component and anti-aging components, and stir to get solution I；
3) light components are heated to 120 DEG C, mix anatonosis component, high-speed shearing machine obtains system II with 1000r/min；
4) solution I is added in system II, 30min is sheared with 2000r/min at 115 DEG C, in evaporative removal solution
Moisture obtains material III；
5) temperature is promoted to 145 DEG C, plasticizing component is added in material III, material is obtained with 2500r/min shearings 15min
Ⅳ；
6) temperature is promoted to 170 DEG C, SBS components is added in material IV, 20min is sheared with 3000r/min, at 130 DEG C
Lower heat preservation 15min obtains the anti-aging modifying agent of Thief zone.
The viscosity of the prepared anti-aging modifying agent of Thief zone in embodiment：
The viscosity index of the anti-aging modifying agent of 1 Thief zone of table
The anti-aging modifying agent of Thief zone in embodiment is in the study on the modification of aged asphalt performance, incorporation is regeneration
The 8% of the aged asphalt quality extracted in asphalt RAP-1 and reclaimed asphalt mixture RAP-2, test result is such as
Following table：
2 anti-aging regeneration asphalt performance indicator of table
Ageing of asphalt, hard constituents increase, and light components, sticky ingredient are reduced, by above-mentioned anti-aging regeneration asphalt
Performance data it is found that regeneration asphalt not only softening point, needle penetration, ductility restore, and with gather materials adhesion property, ageing resistance
And viscous toughness be improved significantly, this is because the anti-ultraviolet ageing and thermo oxidative aging component in anti-aging modifying agent are to again
Component migration, volatilization etc. of the raw pitch under hot oxygen, ultraviolet effect have apparent inhibiting effect, hence it is evident that improve the anti-of regeneration asphalt
Aging ability improves the endurance quality of regeneration asphalt；Lead between organic nano imvite and asphaltene molecule, SBS molecules simultaneously
The effect for crossing molecular force makes regeneration asphalt System forming cross-linked network, improves the intensity of colloform texture and glues tough performance.
The application of the anti-aging modifying agent of Thief zone obtained in above-described embodiment 1-4：
The discarded asphalt (or reclaimed asphalt mixture) of application is Hubei Province's Jingzhu Highway In Dawu section milling
Discarded asphalt, the actual grating after screening are as follows：
Table 3 discards asphalt actual grating
By the control of 0.075mm sieve pore percent of pass in the grading curve and reclaimed asphalt mixture to mixture, and carry
The volume of high RAP-1 is designed, and anti-aging reclaimed asphalt mixture (or durability reclaimed asphalt mixture) is by 35%
RAP-1,15% RAP-2,15% new gather materials (13.2~16mm of particle diameter distribution), 25% it is new gather materials (particle diameter distribution 10~
13.2mm) and 10% miberal powder composition, be mass percent above.Component also includes simultaneously：It is outer to mix new 0.4% (matter of gathering materials
Amount) polyester fiber, the different-grain diameter newly gathers materials for basalt aggregate, and the miberal powder is limestone ground blast furnace slag.
The asphalt content of above-mentioned anti-aging reclaimed asphalt mixture (or durability reclaimed asphalt mixture) passes through oil film
Method is calculated, and oil film thickness selects 9mm, then required outer new pitch of mixing is reclaimed asphalt mixture RAP-1, regeneration asphalt mixing
Expect the 4.0% of RAP-2 1 and gross mass of newly gathering materials.The new pitch is high-viscosity high-elasticity modified pitch.
Outer to mix the anti-aging modifying agent of Thief zone, the addition of the anti-aging modifying agent of Thief zone is reclaimed asphalt mixture RAP-
8% of aged asphalt quality in 1 and reclaimed asphalt mixture RAP-2.
The preparation of ageing-resistant reclaimed asphalt mixture：By reclaimed asphalt mixture RAP-1 and reclaimed asphalt mixture RAP-2
Be put into premixing in Marshall mix instrument, the anti-aging modifying agent mix of Thief zone be added, sequentially add newly gather materials, fiber stabilizer
(i.e. polyester fiber), new pitch and miberal powder, mix obtain anti-aging reclaimed asphalt mixture.
The preparation method, preheating time of newly gathering materials are 4h, and new pitch preheating time is 3h, and it is pre- to discard asphalt
The hot time is that institute is 20s the premixing time, and premixing temperature is 155 DEG C, institute duration of mixing 90s, and mix temperature is 170 DEG C.
Using corresponding standard test method, performance measurement, knot are carried out to the anti-aging reclaimed asphalt mixture of the present invention
Fruit is as shown in the table：
The performance indicator of 4 anti-aging reclaimed asphalt mixture of table
Found out by above-mentioned data, stepping screening is carried out to discarded asphalt, and control fine aggregate volume, improve rough set
Material is mixed than making the Marshall stability of anti-aging reclaimed asphalt mixture be obviously improved, by maximum flexural-tensile strain value it is found that pitch
The crack resistance at low-temperature of mixture reaches improvement, shows that the regeneration effect of the anti-aging modifying agent of Thief zone of the present invention is excellent.
Even if anti-aging reclaimed asphalt mixture oil film thickness is larger, bitumen content is higher, but due to the incorporation of fiber and
The effect of fine aggregate keeps the leakage analysis losing of reclaimed asphalt mixture smaller, meets road surface requirement.Horse after degradation has a rest
You stablize residual than can be seen that the incorporation of pitch recycling modifier makes mixture ageing-resistant performance with maximum curved drawing residual ratio
It is significantly improved, the incorporation that the present invention passes through anti-aging components in the control of grading, the incorporation of fiber and recycling modifier
So that the ageing-resistant performance of reclaimed asphalt mixture is significantly improved, while RAP volumes being made to reach the items in the case of 50%
Performance meets requirement of the high class pavement to performance of asphalt mixture, further expands the application range of reclaimed asphalt mixture.
Embodiment 5
It is essentially identical with one kind in embodiment 1-4, the difference is that：
The light components are second line of distillation oil.
The anatonosis group is divided into sodium chloride.
The plasticizing component is nine copolymer resins of light dydrocarbon carbon.
The appearance and group are divided into double alkyl triamine bi-quaternary ammonium salts.
The anti-aging components are that anti-ultraviolet ageing component and heat resistanceheat resistant oxygen component mix component again, and wherein anti-ultraviolet ageing agent accounts for
Mass percent is 85%, and it is 15% that heat resistanceheat resistant oxygen component, which accounts for mass percent,.
The anti-ultraviolet ageing group is divided into DK3 type average wafer thickness and is less than 25nm nanoscale nano imvites；Heat resistanceheat resistant oxygen
Group is divided into heat resistanceheat resistant oxygen agent B225, be 67% (quality) primary antioxidant 168 (three [2.4- di-tert-butyl-phenyls] phosphite esters) and
The compounding of 33% (quality) auxiliary anti-oxidant 1010 (four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters)
Object.
The performance of the acquired anti-aging modifying agent of Thief zone is close with corresponding embodiment (including its application).
Embodiment 6
It is essentially identical with one kind in embodiment 1-4, the difference is that：
The light components are rubber oil.
The anatonosis group is divided into sodium chloride.
The plasticizing component is phenolic resin.
The appearance and group are divided into double alkyl triamine bi-quaternary ammonium salts.
The anti-aging components are that anti-ultraviolet ageing component and heat resistanceheat resistant oxygen component mix component again, and wherein anti-ultraviolet ageing agent accounts for
Mass percent is 95%, and it is 5% that heat resistanceheat resistant oxygen component, which accounts for mass percent,.
The anti-ultraviolet ageing group is divided into DK3 type average wafer thickness and is less than 25nm nanoscale nano imvites；Heat resistanceheat resistant oxygen
Group is divided into heat resistanceheat resistant oxygen agent B225, be 67% (quality) primary antioxidant 168 (three [2.4- di-tert-butyl-phenyls] phosphite esters) and
The compounding of 33% (quality) auxiliary anti-oxidant 1010 (four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters)
Object.
The performance of the acquired anti-aging modifying agent of Thief zone is close with corresponding embodiment (including its application).
Embodiment 7
It is essentially identical with one kind in embodiment 1-4, the difference is that：
The light components are rubber oil and aromatic aldehyde tapped oil, and the quality of rubber oil and aromatic aldehyde tapped oil respectively accounts for 1/2.
The anatonosis group is divided into sodium bromide and sodium chloride, and the quality of sodium bromide and sodium chloride respectively accounts for 1/2.
The plasticizing component is terpene phenol resin, coumarone indene resin and rosin resin, and quality respectively accounts for 1/3.
The appearance and group are divided into double alkyl triamine bi-quaternary ammonium salts and dimethyldioctadecylammonium ammonium chloride, quality respectively account for 1/
2。
The anti-aging components are that anti-ultraviolet ageing component and heat resistanceheat resistant oxygen component mix component again, and wherein anti-ultraviolet ageing agent accounts for
Mass percent is 92%, and it is 8% that heat resistanceheat resistant oxygen component, which accounts for mass percent,.
The anti-ultraviolet ageing group is divided into DK3 type average wafer thickness and is less than 25nm nanoscale nano imvites；Heat resistanceheat resistant oxygen
Group is divided into heat resistanceheat resistant oxygen agent B225, be 67% (quality) primary antioxidant 168 (three [2.4- di-tert-butyl-phenyls] phosphite esters) and
The compounding of 33% (quality) auxiliary anti-oxidant 1010 (four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters)
Object.
The performance of the acquired anti-aging modifying agent of Thief zone is close with corresponding embodiment (including its application).
Bound, section value and the technological parameter of each raw material and each raw material of the present invention cited by the present invention
Bound, the section value of (such as temperature, time) can realize the present invention, embodiment numerous to list herein.
Claims (9)
1. a kind of anti-aging modifying agent of Thief zone, it is characterised in that it is by including light components, anatonosis component, plasticizing component, appearance
It is prepared with component, anti-aging components, water, SBS components, mass fraction is shared by each raw material：35-45 parts of light components increase
4-6 parts of component is oozed, 20-25 parts of plasticizing component holds and 4-5 parts of component, 5-10 parts of anti-aging components, 4-8 parts of water, SBS components 18-
25 parts；
The light components are to subtract one or more of third fractional oil, second line of distillation oil, rubber oil or aromatic aldehyde tapped oil by arbitrary ratio
Example mixing；
The anatonosis group is divided into sodium bromide, the one or more of sodium chloride mix in any proportion；
The plasticizing component be C5 Petropols, nine copolymer resins of light dydrocarbon carbon, phenolic resin, terpene phenol resin, coumarone indene resin,
The one or more of rosin resin mix in any proportion；
The appearance and group are divided into dimethyldioctadecylammonium ammonium chloride；
The anti-aging components are that anti-ultraviolet ageing component and heat resistanceheat resistant oxygen component mix component again, and wherein anti-ultraviolet ageing agent component accounts for
Mass percent is 85~95%, and it is 5~15% that heat resistanceheat resistant oxygen component, which accounts for mass percent,；
The anti-ultraviolet ageing group is divided into DK3 type average wafer thickness and is less than 25nm nano imvites；Heat resistanceheat resistant oxygen group is divided into heat resistanceheat resistant
Oxygen agent B225, heat resistanceheat resistant oxygen agent B225 are：The compound of 67 mass % irgasfos 168s and 33 mass % antioxidant 1010s.
2. the anti-aging modifying agent of a kind of Thief zone according to claim 1, it is characterised in that：The SBS groups are divided into benzene second
Alkene-butadiene-styrene block copolymer SBS.
3. a kind of preparation method of the anti-aging modifying agent of Thief zone as described in claim 1, it is characterised in that including walking as follows
Suddenly：
1) it is by mass fraction shared by each raw material：35-45 parts of light components, 4-6 parts of anatonosis component, 20-25 parts of plasticizing component hold
With 4-5 parts of component, 5-10 parts of anti-aging components, 4-8 parts of water, 18-25 parts of SBS components, selection light components, anatonosis component, increasing
Mould component, appearance and component, anti-aging components, water and SBS components；
2) appearance and component and anti-aging components is soluble in water, stir to get solution I；
3) light components are heated to 115~120 DEG C, mix anatonosis component, high-speed shearing machine is sheared with 800~1000r/min
Obtain system II；
4) solution I is added in system II, 30~45min is sheared with 1000~2000r/min at 115~120 DEG C, evaporation is gone
Except the moisture in solution, material III is obtained；
5) temperature is promoted to 140~145 DEG C, plasticizing component is added in material III, with 2000~3000r/min shearing 15~
20min obtains material IV；
6) temperature is promoted to 170~175 DEG C, SBS components is added in material IV, with 3000~5000r/min shearings 20~
30min keeps the temperature 15~20min at 130~135 DEG C, obtains the anti-aging modifying agent of Thief zone.
4. the application of the anti-aging modifying agent of Thief zone as described in claim 1, it is characterised in that be used to prepare anti-aging regeneration
Asphalt includes the following steps：
1) each component and mass percent are as follows：Reclaimed asphalt mixture RAP-1 20~35%, reclaimed asphalt mixture RAP-
210~15%, newly gather materials 40~60%, miberal powder 7~15%；The grain size of reclaimed asphalt mixture RAP-1 is more than 4.75mm；Regeneration
The grain size of asphalt RAP-2 is less than 4.75mm；
It mixes outside：New pitch be reclaimed asphalt mixture RAP-1, reclaimed asphalt mixture RAP-2 and new gross mass of gathering materials 3.2~
4.0%；
It mixes outside：The anti-aging modifying agent of Thief zone, the addition of the anti-aging modifying agent of Thief zone be reclaimed asphalt mixture RAP-1 and
The 8~10% of the aged asphalt content that extraction process in reclaimed asphalt mixture RAP-2 measures；
2) reclaimed asphalt mixture RAP-1 and reclaimed asphalt mixture RAP-2 are put into premixing in Marshall mix instrument, are added high
Permeate anti-aging modifying agent mix, sequentially add newly gather materials, new pitch and miberal powder, mix, obtain anti-aging regeneration asphalt mixing
Material.
5. the application of the anti-aging modifying agent of Thief zone according to claim 4, it is characterised in that：The premixing time be 20~
30s, premixing temperature are 155~165 DEG C；60~90s of duration of mixing after charging every time, mix temperature are 170~175 DEG C.
6. the application of the anti-aging modifying agent of Thief zone according to claim 4, it is characterised in that：The anti-aging regeneration drip
Green mixture China and foreign countries are mixed with fiber stabilizer, and fiber stabilizer is polyester fiber or wood fibre stabilizer, fiber stabilizer are
The 0.3%~0.4% of new aggregate quality, fiber stabilizer is in newly gathering materials, be added between new pitch.
7. the application of the anti-aging modifying agent of Thief zone according to claim 4, it is characterised in that：It is described newly to gather materials for the Black Warrior
Rock or limestone aggregates, particle diameter distribution are：13.2~16mm, 10~13.2mm, 5~10mm；Using at first 190~195 DEG C
Preheat 3~4h.
8. the application of the anti-aging modifying agent of Thief zone according to claim 4, it is characterised in that：The miberal powder is limestone
Ground blast furnace slag, grain size is less than 0.6mm, and the mass percent less than 0.075mm is between 75~100%.
9. the application of the anti-aging modifying agent of Thief zone according to claim 4, it is characterised in that：The new pitch is 1-D
Modified pitch or high-viscosity high-elasticity modified pitch use first 160~165 DEG C preheating 3h.
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| CN110724431B (en) * | 2019-10-22 | 2021-06-01 | 厦门闽路通建设工程有限公司 | Road marking paint and preparation method thereof |
| CN110746787B (en) * | 2019-11-05 | 2021-11-05 | 长安大学 | Anti-aging penetration type asphalt regenerant and preparation method thereof |
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| CN114538828A (en) * | 2022-03-01 | 2022-05-27 | 江苏新越沥青产业研发有限公司 | Asphalt mixture for heavy traffic and preparation method thereof |
| CN114836003A (en) * | 2022-04-28 | 2022-08-02 | 江阴市沪澄绝缘材料有限公司 | Phenolic resin cotton cloth laminated board for automobile and preparation method thereof |
| CN115521628B (en) * | 2022-10-25 | 2024-01-30 | 湖北工业大学 | Multi-layer grafted aging-resistant reclaimed asphalt, and preparation method and application thereof |
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