CN105819725A - Plant oil regenerated asphalt mixture and preparation method thereof - Google Patents

Plant oil regenerated asphalt mixture and preparation method thereof Download PDF

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Publication number
CN105819725A
CN105819725A CN201610142849.1A CN201610142849A CN105819725A CN 105819725 A CN105819725 A CN 105819725A CN 201610142849 A CN201610142849 A CN 201610142849A CN 105819725 A CN105819725 A CN 105819725A
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asphalt
component
vegetable oil
plant oil
bitumen regenerant
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CN201610142849.1A
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CN105819725B (en
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索智
孙立军
李好新
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Tongji University
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Tongji University
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/08—Fats; Fatty oils; Ester type waxes; Higher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl group; Oxidised oils or fats
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

Abstract

The invention belongs to the technical field of road engineering materials, and relates to a plant oil regenerated asphalt mixture and a preparation method thereof. The plant oil regenerated asphalt mixture comprises mineral aggregate, recovered mineral aggregate, and plant oil regenerated asphalt. The plant oil regenerated asphalt comprises recovered aged asphalt and a plant oil base asphalt regenerating agent. The light base oil in the plant oil base asphalt regenerating agent is light plant oil, which is obtained by removing impurities from waste edible oil. Compared with the prior art, the regenerated asphalt mixture and preparation method thereof have the advantages of low mixing temperature, long service life, and good pavement performance.

Description

One vegetable oil reclaimed asphalt mixture and preparation method thereof
Technical field
The present invention relates to technical field of road engineering materials, particularly relate to vegetable oil reclaimed asphalt mixture and preparation method thereof.
Background technology
In recent years, asphalt-regenerating and plant waste oil be recycled as a kind of new technique, be increasingly taken seriously.
The regeneration techniques of bituminous paving, be by old asphalt pavement through milling, reclaim, after the pretreating process that sieves, use corresponding regeneration techniques the most again to mix and stir into asphalt with new asphalt pavement material, enable to meet certain pavement performance the Technology with its surfacing again.Traditional Applied of Asphalt Pavement Recycle Technique be mainly bitumen regenerant joined old asphalt mixture and is heated to the high temperature of 150 DEG C-180 DEG C under carry out mixing and stirring regeneration with new Colophonium and mineral aggregate.
At present, plant oil asphalt regeneration techniques receives much concern, in order to the old material ratio being effectively improved in plant oil asphalt regeneration techniques, being badly in need of developing a kind of novel compound warm mix regenerative agent, this realizes pavement material energy-conserving and environment-protective and the initiative technology of reclamation of old material utilization by becoming.
The Chinese invention patent application of Publication No. CN104788975A discloses a kind of bitumen regenerant with modified function and preparation method thereof, it is prepared from by lighter body, modified function component, component stable equilibrium, infiltration enhancement component, dispersed component and fluidised form regulation component, shared by each component, mass fraction is: lighter body 30～60 parts, modified function component 20～35 parts, stable equilibrium component 5～20 parts, infiltration enhancement component 2～15 parts, dispersed component 2～10 parts, fluidised form regulation component 1～10 parts.
The Chinese invention patent application of Publication No. CN102585529A discloses a kind of bitumen regenerant utilizing waste edible oil to prepare and preparation technology thereof, blended formulated by waste edible oil, plasticizer, stabilizer and age resister, each constituent content is by weight percentage: waste edible oil 85%-95%, plasticizer 2%-5%, stabilizer 2%-5%, age resister 1%-5%.But also comprising much impurity in waste edible oil, such as residue in kind etc., and Colophonium can be employed performance by these impurity, as fatigue resistance adversely affects.
Summary of the invention
The purpose of the present invention is contemplated to the problem overcoming above-mentioned prior art to exist, and provides vegetable oil reclaimed asphalt mixture and preparation method thereof.This vegetable oil reclaimed asphalt mixture prepares based on plant oil base bitumen regenerant, plant oil base bitumen regenerant is a kind of composite high-molecular material, can directly, disposably be added in Colophonium or asphalt, realize the regeneration of Colophonium or asphalt, and then the solid waste realizing ground surface material utilizes and the double effects of energy-saving and emission-reduction.This bitumen regenerant can recover the property indices of Colophonium and asphalt effectively.
Plant oil base bitumen regenerant in the present invention can realize the regeneration of aged asphalt and old asphalt mixture; its aspect ratio can reach 40-50%; the utilization rate of old material significantly improves, and then realizes solid waste recycling and reduce the exploitation of new material, preserves the ecological environment.
The purpose of the present invention can be achieved through the following technical solutions:
First aspect: the present invention provides a vegetable oil base bitumen regenerant.
One vegetable oil base bitumen regenerant, including lighter body component, stablizes component and modified component, and wherein, described lighter body is light-weight plant oil, and described light-weight plant oil is preprocessed by waste edible oil, obtains after going the removal of impurity.
Waste edible oil is after high temperature, the phenomenon of light composition volatilization is less likely to occur, but containing many impurity in waste edible oil, such as food debris, the pavement performance of the regeneration efficiency of bitumen regenerant and the Colophonium obtained can be had undesirable effect by these impurity, and after pretreatment, make the impurity in waste edible oil, such as food debris, be removed, it is made to obtain purification, and then make the pavement performance of regeneration asphalt, such as fatigue resistance, it is improved, it is really achieved the regeneration of Colophonium, and asphalt-regenerating efficiency is high.
Preferably, described pretreatment includes centrifugal and/or filters.
In any of the above-described scheme preferably, described centrifugal rotating speed is 8000r/min, and centrifugation time is 10min.
In any of the above-described scheme preferably, described filtration is to be carried out by filter paper or filter screen.
In any of the above-described scheme preferably, the aperture of described filter screen is 0.667mm, and the aperture of filter paper is 90 μm.
In any of the above-described scheme preferably, described plant oil base bitumen regenerant is uniformly dispersed for the most each component, does not isolate the homogeneous complex of lamination.
In any of the above-described scheme preferably, after described plant oil base bitumen regenerant adds in Colophonium, described plant oil base bitumen regenerant is reacted with the crosslinking (hardening) reclaimed between aged asphalt by described component of stablizing, stable spacial framework is formed with described recovery aged asphalt, aged asphalt will be reclaimed wrap up in a network, keep chemical equilibrium, reduce surface tension, prevent light, thermal decomposition or oxidation Decomposition, stop described lighter body component and reclaim the separation of aged asphalt, significantly reduce recovery aged asphalt viscosity, improve processing performance, improve the plasticity of bituminous cements.
In any of the above-described scheme preferably, described component of stablizing includes resin and stearic acid.Resin and stearic acid can crosslink reaction with described recovery aged asphalt, described plant oil base bitumen regenerant is finally made to form the solidfied material of three-dimensional crosslinking structure with described recovery aged asphalt, Stability Analysis of Structures, and macroscopically significantly reducing recovery aged asphalt viscosity, improve processing performance, improve the plasticity of bituminous cements so that reclaim aged asphalt and obtain regeneration.
In any of the above-described scheme preferably, described stablizing in component, resin and stearic mass ratio are 1:1.
But, in order to aged asphalt is peeled off from old compound, need to add substantial amounts of trichloro ethylene, after making aged asphalt regeneration, its viscosity can be more on the low side than new Colophonium, and adds resin in regenerative agent, can increase the viscosity of regeneration asphalt, make its viscosity close to new Colophonium so that the caking property of regeneration asphalt is close to new Colophonium.
In any of the above-described scheme preferably, described resin is Petropols, preferably C5 Petropols or C9 Petropols.
In any of the above-described scheme preferably, described modified component is used for improving further pavement performance and the surface characteristic of regeneration asphalt.
In any of the above-described scheme preferably, described modified component includes white carbon black and/or Calx.Add Calx and/or white carbon black, be conducive to improving fatigue resistance and the water stability of regeneration asphalt, and then improve fatigue resistance and the water stability of reclaimed asphalt mixture.Wherein Calx can be quick lime or Calx, can reach identical effect.
In any of the above-described scheme preferably, the particle diameter of described white carbon black is 10nm.
Under resin and stearic effect, white carbon black or Calx can be uniformly dispersed in described light-weight plant oil, and form homogeneous product with described light-weight plant oil, resin, stearic acid, do not have the phenomenon of laminated segregation.
In order to reach certain effect, those skilled in the art can select other stable component and modified component, as added other stable component and/or modified components, or replace aforementioned stable component and/or modified component, and concrete particle diameter can select according to actual needs or change.
In any of the above-described scheme preferably, in described plant oil base bitumen regenerant, the mass percent of each component is that light-weight plant line of oils is divided into 60-90%, stablizes component 5-20%, modified component 5-20%.
In any of the above-described scheme preferably, in described plant oil base bitumen regenerant, the mass percent of each component is that light-weight plant line of oils is divided into 70-90%, stablizes component 5-15%, modified component 5-15%.
In any of the above-described scheme preferably, in described plant oil base bitumen regenerant, the mass percent of each component is that light-weight plant line of oils is divided into 80-90%, stablizes component 5-10%, modified component 5-10%.
Vegetable oil in described plant oil base bitumen regenerant can make the asphalitine in recovery aged asphalt well be disperseed so that regeneration temperature reduces, and saves the energy, operates safety.
Light-weight plant is oily, stablize component and modified component according to above mass percent proportioning, the bitumen regenerant obtained, there is high recovery aged asphalt regeneration efficiency, and the performance of regeneration asphalt well can be improved, and then the performance of reclaimed asphalt mixture is improved.If the mass percent of light-weight plant oil is more than 90%, the described content stablizing component and/or modified component can be caused on the low side, and the stability of described bitumen regenerant is had undesirable effect, and/or, the modified performance of regeneration asphalt can not well be improved；And if the content of described light-weight plant oil ingredient is less than 60%, can cause described bitumen regenerant regeneration asphalt when, the asphalitine reclaiming aged asphalt can not well scatter, and reduces regeneration efficiency, reduces the utilization rate of old compound, reduces cost performance.
The plant oil base bitumen regenerant (i.e. a first aspect of the present invention) of the present invention, nontoxic, pollution-free, non-corrosiveness, can stable existence, the phenomenon of isolation layering will not be produced, raw material is common, it is readily available, cheap, and it is good to the regeneration effect reclaiming aged asphalt, regeneration efficiency is high, environmentally friendly, there is important economic implications and social meaning simultaneously, the Colophonium of the bitumen regenerant regeneration of the present invention, pavement performance, especially fatigue resistance and water stability, it is improved, and then improve the pavement performance of reclaimed asphalt mixture, extend Road Service Life.
The bitumen regenerant of the present invention, use waste edible oil treated light-weight plant oil as substrate, due to waste edible oil, frying fried through high temperature etc., volatile component therein does not exists, and the temperature often higher than Colophonium of waste edible oil experience is commonly used and is mixed and stirred temperature, this make reclaim aged asphalt regeneration during, prepare compound during, described light-weight plant oil will not volatilize, reduce regeneration asphalt premature ageing, and then make the life of reclaimed asphalt mixture, and regeneration efficiency is high.
The plant oil base bitumen regenerant of the present invention, moreover it is possible to reduction recovery aged asphalt mixes and stirs temperature and can be reduced to 110 DEG C, reduces operational hazards, saves the energy.
Second aspect: the present invention also provides for the preparation method of a vegetable oil base bitumen regenerant.
The preparation method of plant oil base bitumen regenerant, comprises the following steps:
(1) with waste edible oil as raw material, pretreatment, isolated light-weight plant oil ingredient are carried out；
(2) weigh appropriate described light-weight plant oil ingredient, and uniformly mix with stable component and modified component；
(3), after ageing at normal temperatures, described plant oil base bitumen regenerant is i.e. obtained.
Bitumen regenerant preparation method prepared by the present invention, can increase the content of light component in Colophonium, reduces asphalt content, effectively reduces pitch viscosity, recovers asphalt performance.
Described light-weight plant oil ingredient with described stablize component and modified component mix and stir after formation composite, described composite is plant oil base bitumen regenerant.
Preferably, described pretreatment includes centrifugal and/or filters.
In any of the above-described scheme preferably, described centrifugal rotating speed is 8000r/min, and centrifugation time is 10min.
In any of the above-described scheme preferably, described filtration is to be carried out by filter paper or filter screen.
In any of the above-described scheme preferably, the aperture of described filter screen is 0.667mm, and the aperture of filter paper is 90 μm.
In any of the above-described scheme preferably, described centrifugal and/or filtration uses filter centrifugal to be centrifuged filtering, and can realize being centrifuged and filter a step and complete, simple to operation.
In any of the above-described scheme preferably, described waste edible oil is before being centrifuged, filtering, first waste edible oil is carried out precipitation, to obtain more preferable waste edible oil pretreating effect, impurity in the light-weight plant oil obtained is less, and the plant oil base bitumen regenerant prepared is higher to the regeneration efficiency reclaiming aged asphalt.
In any of the above-described scheme preferably, described precipitation is carried out 48～72 hours, preferably 48 hours, 60 hours or 72 hours.
In any of the above-described scheme preferably, described component of stablizing includes resin and stearic acid.
In any of the above-described scheme preferably, described stablizing in component, resin and stearic mass ratio are 1:1.
In any of the above-described scheme preferably, before described resin is oily with described light-weight plant and described modified component mixes, first makes it melt, form fluid, in order to and described light-weight plant oil and modified component uniformly mix.
In any of the above-described scheme preferably, described resin is Petropols, more preferably C5 Petropols or C9 Petropols.
In any of the above-described scheme preferably, described modified component includes white carbon black and/or Calx.Add Calx or white carbon black, be conducive to improving fatigue resistance and the water stability of regeneration asphalt, and then heighten fatigue resistance and the water stability of reclaimed asphalt mixture.Wherein Calx can be quick lime or Calx, can reach identical effect.
In any of the above-described scheme preferably, the particle diameter of described white carbon black is 10nm.
In any of the above-described scheme preferably, described light-weight plant oil ingredient is 2-5h, more preferably 3-4h with the digestion time of stablized component and modified component.
The present invention proves through lot of experiments, and in the digestion time of 2-5h, especially 3-4h, three kinds of materials can be sufficiently mixed uniformly.
In any of the above-described scheme preferably, in described plant oil base bitumen regenerant, the mass percent of each component is, light-weight plant oil ingredient 60-90% stablizes component 5-20%, modified component 5-20%.
In any of the above-described scheme preferably, in described plant oil base bitumen regenerant, the mass percent of each component is, light-weight plant oil ingredient 70-90% stablizes component 5-15%, modified component 5-15%.
In any of the above-described scheme preferably, in described plant oil base bitumen regenerant, the mass percent of each component is that light-weight plant line of oils is divided into 80-90%, stablizes component 5-10%, modified component 5-10%.
Light-weight plant is oily, stablize component and modified component according to above mass percent proportioning, the bitumen regenerant obtained, there is high recovery aged asphalt regeneration efficiency, and the performance of regeneration asphalt well can be improved, and then the performance of reclaimed asphalt mixture is improved.If the mass percent of light-weight plant oil is more than 90%, the described content stablizing component and/or modified component can be caused on the low side, and the stability of described bitumen regenerant is had undesirable effect, and/or, the modified performance of regeneration asphalt can not well be improved；And if the content of described light-weight plant oil ingredient is less than 60%, can cause described bitumen regenerant regeneration asphalt when, the asphalitine reclaiming aged asphalt can not well scatter, and reduces regeneration efficiency, reduces the utilization rate of old compound, reduces cost performance.
Plant oil base bitumen regenerant described in first aspect present invention has the advantage that
Described plant oil base bitumen regenerant is high to the regeneration efficiency reclaiming aged asphalt, when its addition is reclaim aged asphalt 0.06 times, can meet the regeneration reclaiming aged asphalt, and consumption is few.
Preparation method described in second aspect present invention, using vegetable oil as primary raw material, effectively solves the recycling problem of plant waste oil；Make Bituminous concrete surface be re-used, reach the purpose of energy-saving and emission-reduction and twice laid；Easy and simple to handle, with low cost, it is easy to implement.
Bitumen regenerant prepared by the preparation method described in second aspect present invention, make reclaim aged asphalt regeneration during, prepare compound during, described light-weight plant oil will not volatilize, reduce regeneration asphalt premature ageing, and then make the life of reclaimed asphalt mixture, and regeneration efficiency is high, moreover it is possible to reduces and reclaims aged asphalt and mix and stir temperature and can be reduced to 110 DEG C, reduce operational hazards, save the energy.
The plant oil base bitumen regenerant Colophonium of first aspect present invention is preferably prepared by the preparation method described in second aspect, but also as limiting, say, that the plant oil base bitumen regenerant of first aspect prepares also by other method.
The third aspect: the present invention also provides for a vegetable oil regeneration asphalt.
One vegetable oil regeneration asphalt, for a kind of composite, described vegetable oil regeneration asphalt includes reclaiming aged asphalt and plant oil base bitumen regenerant, described plant oil base bitumen regenerant includes lighter body component, stablizes component and modified component, wherein, described lighter body is light-weight plant oil, and described light-weight plant oil is preprocessed by waste edible oil, obtains after going the removal of impurity.
Waste edible oil is after high temperature, the phenomenon of light composition volatilization will not be susceptible to, but containing many impurity in waste edible oil, such as food debris, the pavement performance of the regeneration efficiency of bitumen regenerant and the Colophonium obtained can be had undesirable effect by these impurity, and after pretreatment, make the impurity in waste edible oil, such as food debris, be removed, it is made to obtain purification, and then make the pavement performance of regeneration asphalt, such as fatigue resistance, it is improved, it is really achieved the regeneration of Colophonium, and asphalt-regenerating efficiency is high.
Preferably, described pretreatment includes centrifugal and/or filters.
In any of the above-described scheme preferably, described centrifugal rotating speed is 8000r/min, and centrifugation time is 10min.
In any of the above-described scheme preferably, described filtration is to be carried out by filter paper or filter screen.
In any of the above-described scheme preferably, the aperture of described filter screen is 0.667mm, and the aperture of filter paper is 90 μm.
In any of the above-described scheme preferably, described centrifugal and/or filtration uses filter centrifugal to be centrifuged filtering, and can realize being centrifuged and filter a step and complete, simple to operation.
In any of the above-described scheme preferably, described plant oil base bitumen regenerant is uniformly dispersed for the most each component, does not isolate the homogeneous complex of lamination.
In any of the above-described scheme preferably, after described plant oil base bitumen regenerant adds in Colophonium, described plant oil base bitumen regenerant is reacted with the crosslinking (hardening) reclaimed between aged asphalt by described component of stablizing, stable spacial framework is formed with described recovery aged asphalt, aged asphalt will be reclaimed wrap up in a network, keep chemical equilibrium, reduce surface tension, prevent light, thermal decomposition or oxidation Decomposition, stop described lighter body component and reclaim the separation of aged asphalt, significantly reduce recovery aged asphalt viscosity, improve processing performance, improve the plasticity of bituminous cements.
In any of the above-described scheme preferably, described component of stablizing includes resin and stearic acid.Resin and stearic acid can crosslink reaction with described recovery aged asphalt, described plant oil base bitumen regenerant is finally made to form the solidfied material of three-dimensional crosslinking structure with described recovery aged asphalt, Stability Analysis of Structures, and macroscopically significantly reducing recovery aged asphalt viscosity, improve processing performance, improve the plasticity of bituminous cements so that reclaim aged asphalt and obtain regeneration.
In any of the above-described scheme preferably, described stablizing in component, resin and stearic mass ratio are 1:1.
But, in order to aged asphalt is peeled off from old compound, need to add substantial amounts of trichloro ethylene, after making aged asphalt regeneration, its viscosity can be more on the low side than new Colophonium, and adds resin in regenerative agent, can increase the viscosity of regeneration asphalt, make its viscosity close to new Colophonium so that the caking property of regeneration asphalt is close to new Colophonium.
In any of the above-described scheme preferably, described resin is Petropols, more preferably C5 Petropols or C9 Petropols.
In any of the above-described scheme preferably, described modified component is used for improving further pavement performance and the surface characteristic of regeneration asphalt.
In any of the above-described scheme preferably, described modified component includes white carbon black and/or Calx.Add Calx or white carbon black, be conducive to improving fatigue resistance and the water stability of regeneration asphalt, and then improve fatigue resistance and the water stability of reclaimed asphalt mixture.Wherein Calx can be quick lime or Calx, can reach identical effect.
In any of the above-described scheme preferably, the particle diameter of described white carbon black is 10nm.
Under resin and stearic effect, white carbon black or Calx can be uniformly dispersed in described light-weight plant oil, and form homogeneous product with described light-weight plant oil, resin, stearic acid, do not have the phenomenon of laminated segregation.
In order to reach certain effect, those skilled in the art can select other stable component and modified component, as added other stable component and/or modified components, or replace aforementioned stable component and/or modified component, and concrete particle diameter can select according to actual needs or change.
In any of the above-described scheme preferably, in described plant oil base bitumen regenerant, the mass percent of each component is that light-weight plant line of oils is divided into 60-90%, stablizes component 5-20%, modified component 5-20%.
In any of the above-described scheme preferably, in described plant oil base bitumen regenerant, the mass percent of each component is that light-weight plant line of oils is divided into 70-90%, stablizes component 5-15%, modified component 5-15%.
In any of the above-described scheme preferably, in described plant oil base bitumen regenerant, the mass percent of each component is that light-weight plant line of oils is divided into 80-90%, stablizes component 5-10%, modified component 5-10%.
In any of the above-described scheme preferably, in described vegetable oil regeneration asphalt, the mass percent of each component is, reclaims aged asphalt 90-94%, plant oil base bitumen regenerant 6-10%.
In any of the above-described scheme preferably, aged asphalt 91-93%, plant oil base bitumen regenerant 7-9% are reclaimed.
In any of the above-described scheme preferably, aged asphalt 92%, plant oil base bitumen regenerant 8% are reclaimed.
Due to the plant oil base bitumen regenerant of first aspect present invention, its regeneration efficiency is high, when adding reclaim aged asphalt quality 0.06 times, i.e. can get good regeneration effect.
The vegetable oil regeneration asphalt of the present invention, nontoxic, pollution-free, raw material is common, cheap, environmentally friendly, can preferably recover the properties of Colophonium, reach the purpose of energy-saving and emission-reduction simultaneously.This vegetable oil regeneration asphalt can be widely used for the regions such as urban road, street, airport, harbour and mine.
The 3rd described vegetable oil regeneration asphalt of the present invention, regeneration efficiency is high, and old compound utilization rate is high; turn waste into wealth, and the performance of regeneration asphalt is close to new Colophonium, even identical with new Colophonium; can be good at being applicable to road, and, compared to new Colophonium; light-weight plant oil ingredient therein is not easy volatilization; regeneration asphalt is difficult to aging so that road occupation time lengthening, saves the energy; protection environment, cost performance is high.
Fourth aspect, the present invention also provides for the preparation method of a kind of above-mentioned vegetable oil regeneration asphalt, comprises the following steps:
(1) old asphalt mixture use the mode of extraction device extracting receive aged asphalt；
(2) it is heated to mixing and stirring temperature by recovery aged asphalt；
(3) add to plant oil base bitumen regenerant to have been heated to mix and stir in the recovery aged asphalt of temperature and mix and stir；
(4) mixture reclaiming aged asphalt and plant oil base bitumen regenerant after mixing and stirring is put in baking oven and is grown.
Preferably, described recovery aged asphalt is 110-160 DEG C with the temperature of mixing and stirring of plant oil base bitumen regenerant.It is further preferred that mix and stir temperature to be 130-150 DEG C.Due to the regenerative agent of the present invention, recovery aged asphalt is heated to 110 DEG C, asphalitine therein can be made to soften, become fluid state, it is simple to mix and stir with plant oil base bitumen regenerant.
In any of the above-described scheme preferably, described recovery aged asphalt is 5-60min with the mixing time of plant oil base bitumen regenerant.Preferably, the mixing time is 20-40min.
In any of the above-described scheme preferably, described recovery aged asphalt is 110 DEG C-160 DEG C with the developmental temperature of plant oil base bitumen regenerant.After recovery aged asphalt and plant oil base bitumen regenerant are mixed and stirred, it is incubated further, it is ensured that Colophonium mass-energy scatter well so that the favorable regeneration effect of Colophonium.
In any of the above-described scheme preferably, described recovery aged asphalt is 30-60min with the development time of plant oil base bitumen regenerant.
In any of the above-described scheme preferably, described recovery aged asphalt is shear agitation with the mixing method of plant oil base bitumen regenerant, and stir speed (S.S.) is 2000-10000r/min.Using boxshear apparatus to carry out at a high speed to mix and stir, stir speed (S.S.) is preferably 4000-6000r/min.
In any of the above-described scheme preferably, in described vegetable oil regeneration asphalt, the mass percent of each component is, reclaims aged asphalt 90-94%, plant oil base bitumen regenerant 6-10%.It may further be preferable that reclaim aged asphalt 91-93%, plant oil base bitumen regenerant 7-9%.It is further preferred that reclaim aged asphalt 92%, plant oil base bitumen regenerant 8%.
In any of the above-described scheme preferably, the preparation method of described plant oil base bitumen regenerant, comprise the following steps:
(1) with waste edible oil as raw material, pretreatment, isolated light-weight plant oil ingredient are carried out；
(2) weigh appropriate described light-weight plant oil ingredient, and uniformly mix with stable component and modified component；
(3), after ageing at normal temperatures, described plant oil base bitumen regenerant is i.e. obtained.
Bitumen regenerant preparation method prepared by the present invention, can increase the content of light component in Colophonium, reduces asphalt content, effectively reduces pitch viscosity, recovers asphalt performance.
Described light-weight plant oil ingredient forms composite after mixing and stirring with stablized component and modified component, and described composite is plant oil base bitumen regenerant.
In any of the above-described scheme preferably, described pretreatment includes centrifugal and/or filters.
In any of the above-described scheme preferably, described centrifugal rotating speed is 8000r/min, and centrifugation time is 10min.
In any of the above-described scheme preferably, described filtration is to be carried out by filter paper or filter screen.
In any of the above-described scheme preferably, the aperture of described filter screen is 0.667mm, and the aperture of filter paper is 90 μm.
In any of the above-described scheme preferably, described centrifugal and/or filtration uses filter centrifugal to be centrifuged filtering, and can realize being centrifuged and filter a step and complete, simple to operation.
In any of the above-described scheme preferably, described waste edible oil is before being centrifuged, filtering, first waste edible oil is carried out precipitation, to obtain more preferable waste edible oil pretreating effect, impurity in the light-weight plant oil obtained is less, and the plant oil base bitumen regenerant prepared is higher to the regeneration efficiency reclaiming aged asphalt.
In any of the above-described scheme preferably, described precipitation carries out 48 hours.
In any of the above-described scheme preferably, described precipitation carries out 60 hours.
In any of the above-described scheme preferably, described precipitation carries out 72 hours.
In any of the above-described scheme preferably, described component of stablizing includes resin and stearic acid.
In any of the above-described scheme preferably, before described resin is oily with described light-weight plant and described modified component mixes, first makes it melt, form fluid, in order to and described light-weight plant oil and modified component uniformly mix.
In any of the above-described scheme preferably, described resin is Petropols.
In any of the above-described scheme preferably, described resin is C5 Petropols.
In any of the above-described scheme preferably, described resin is C9 Petropols.
In any of the above-described scheme preferably, described modified component includes white carbon black and/or Calx.Add Calx or white carbon black, be conducive to improving fatigue resistance and the water stability of regeneration asphalt, and then heighten fatigue resistance and the water stability of reclaimed asphalt mixture.Wherein Calx can be quick lime or Calx, can reach identical effect.
In any of the above-described scheme preferably, the particle diameter of described white carbon black is 10nm.
In any of the above-described scheme preferably, described light-weight plant oil ingredient is 2-5h with the digestion time of stablized component and modified component.
In any of the above-described scheme preferably, described light-weight plant oil ingredient is 3-4h with the digestion time of stablized component and modified component.
The present invention proves through lot of experiments, and in the digestion time of 2-5h, three kinds of materials can be sufficiently mixed uniformly.Preferably, digestion time is 3-4h.
The vegetable oil regeneration asphalt preparation method of the present invention, the vegetable oil regeneration asphalt obtained, performance is close to new Colophonium; even identical with new Colophonium; can be good at being applicable to road, and, compared to new Colophonium; light-weight plant oil ingredient therein is not easy volatilization; regeneration asphalt is difficult to aging so that road occupation time lengthening, saves the energy; protection environment, cost performance is high.
5th aspect, the present invention also provides for a vegetable oil reclaimed asphalt mixture.
One vegetable oil reclaimed asphalt mixture, for composite, described vegetable oil reclaimed asphalt mixture includes mineral aggregate, reclaims mineral aggregate and vegetable oil regeneration asphalt, described vegetable oil regeneration asphalt includes reclaiming aged asphalt and plant oil base bitumen regenerant, described plant oil base bitumen regenerant includes lighter body component, stablizes component and modified component, and wherein, described lighter body is light-weight plant oil, described light-weight plant oil is preprocessed by waste edible oil, obtains after going the removal of impurity.
Waste edible oil is after high temperature, the phenomenon of light composition volatilization will not be susceptible to, but containing many impurity in waste edible oil, such as food debris, the pavement performance of the regeneration efficiency of bitumen regenerant and the Colophonium obtained can be had undesirable effect by these impurity, and after pretreatment, make the impurity in waste edible oil, such as food debris, be removed, it is made to obtain purification, and then make the pavement performance of regeneration asphalt, such as fatigue resistance, it is improved, it is really achieved the regeneration of Colophonium, and asphalt-regenerating efficiency is high.
Preferably, described pretreatment includes centrifugal and/or filters.
In any of the above-described scheme preferably, described centrifugal rotating speed is 8000r/min, and centrifugation time is 10min.
In any of the above-described scheme preferably, described filtration is to be carried out by filter paper or filter screen.
In any of the above-described scheme preferably, the aperture of described filter screen is 0.667mm, and the aperture of filter paper is 90 μm.
In any of the above-described scheme preferably, described plant oil base bitumen regenerant is uniformly dispersed for the most each component, does not isolate the homogeneous complex of lamination.
In any of the above-described scheme preferably, after described plant oil base bitumen regenerant adds in Colophonium, described plant oil base bitumen regenerant is reacted with the crosslinking (hardening) reclaimed between aged asphalt by described component of stablizing, stable spacial framework is formed with described recovery aged asphalt, aged asphalt will be reclaimed wrap up in a network, keep chemical equilibrium, reduce surface tension, prevent light, thermal decomposition or oxidation Decomposition, stop described lighter body component and reclaim the separation of aged asphalt, significantly reduce recovery aged asphalt viscosity, improve processing performance, improve the plasticity of bituminous cements.
In any of the above-described scheme preferably, described component of stablizing includes resin and stearic acid.Resin and stearic acid can crosslink reaction with described recovery aged asphalt, described plant oil base bitumen regenerant is finally made to form the solidfied material of three-dimensional crosslinking structure with described recovery aged asphalt, Stability Analysis of Structures, and macroscopically significantly reducing recovery aged asphalt viscosity, improve processing performance, improve the plasticity of bituminous cements so that reclaim aged asphalt and obtain regeneration.
In any of the above-described scheme preferably, described stablizing in component, resin and stearic mass ratio are 1:1.
But, in order to aged asphalt is peeled off from old compound, need to add substantial amounts of trichloro ethylene, after making aged asphalt regeneration, it adheres to can be more on the low side than new Colophonium, and adds resin in regenerative agent, can increase the viscosity of regeneration asphalt, make its viscosity close to new Colophonium so that the caking property of regeneration asphalt is close to new Colophonium.
In any of the above-described scheme preferably, described resin is Petropols.
In any of the above-described scheme preferably, described resin is C5 Petropols.
In any of the above-described scheme preferably, described resin is C9 Petropols.
In any of the above-described scheme preferably, described modified component is used for improving further pavement performance and the surface characteristic of regeneration asphalt.
In any of the above-described scheme preferably, described modified component includes white carbon black and/or Calx.Add Calx or white carbon black, be conducive to improving fatigue resistance and the water stability of regeneration asphalt, and then heighten fatigue resistance and the water stability of reclaimed asphalt mixture.Wherein Calx can be quick lime or Calx, can reach identical effect.
In any of the above-described scheme preferably, the particle diameter of described white carbon black is 10nm.
Under resin and stearic effect, white carbon black or Calx can be uniformly dispersed in described light-weight plant oil, and form homogeneous product with described light-weight plant oil, resin, stearic acid, do not have the phenomenon of laminated segregation.
In order to reach certain effect, those skilled in the art can select other stable component and modified component, as added other stable component and/or modified components, or replace aforementioned stable component and/or modified component, and concrete particle diameter can select according to actual needs or change.
In any of the above-described scheme preferably, in described plant oil base bitumen regenerant, the mass percent of each component is that light-weight plant line of oils is divided into 60-90%, stablizes component 5-20%, modified component 5-20%.
In any of the above-described scheme preferably, in described plant oil base bitumen regenerant, the mass percent of each component is that light-weight plant line of oils is divided into 70-90%, stablizes component 5-15%, modified component 5-15%.
In any of the above-described scheme preferably, in described plant oil base bitumen regenerant, the mass percent of each component is that light-weight plant line of oils is divided into 80-90%, stablizes component 5-10%, modified component 5-10%.
In any of the above-described scheme preferably, in described vegetable oil regeneration asphalt, the mass percent of each component is, reclaims aged asphalt 90-94%, plant oil base bitumen regenerant 6-10%.Preferably, aged asphalt 91-93%, plant oil base bitumen regenerant 7-9% are reclaimed.It is further preferred that reclaim aged asphalt 92%, plant oil base bitumen regenerant 8%.
In any of the above-described scheme preferably, in described vegetable oil reclaimed asphalt mixture, the mass percent of each component is, mineral aggregate 40-60%, reclaims mineral aggregate 35-45%, vegetable oil regeneration asphalt 5-15%.
In any of the above-described scheme preferably, described mineral aggregate is alkali aggregate.
In any of the above-described scheme preferably, described mineral aggregate is basalt and/or diabase.
In any of the above-described scheme preferably, the particle diameter of described mineral aggregate is 26.5-37.5mm, 19.0-26.5mm, 16.0-19.0mm, 13.2-16.0mm, 4.75-9.5mm, 0.15-2.36mm and 0-0.075mm.
In any of the above-described scheme preferably, in described mineral aggregate, the mass percent of each particle diameter mineral aggregate is, particle diameter 26.5-37.5mm is 0-10%, particle diameter 19.0-26.5mm is 0-10%, particle diameter 16.0-19.0mm is 0-20%, particle diameter 13.2-16.0mm is 0-20%, particle diameter 4.75-9.5mm is 15-50%, particle diameter 0.15-2.36mm is 40-70%, particle diameter 0-0.075mm is 10-15%.
The grating of described mineral aggregate meets the requirement of " standard specification for construction and acceptance of highway asphalt pavement " (JTGE20-2011), and disclosure satisfy that the construction requirements of asphalt highway upper, middle and lower surface layer.
The functional effect of the vegetable oil reclaimed asphalt mixture of the present invention is good, pollute little, low cost, vegetable oil regeneration asphalt mixes and stirs with recovery mineral aggregate, new mineral aggregate, and the reclaimed asphalt mixture thus prepared also has good surface characteristic possessing good pavement performance while.
The vegetable oil reclaimed asphalt mixture of the present invention, regeneration asphalt therein is difficult to aging so that described vegetable oil reclaimed asphalt mixture uses time lengthening, saves the energy, protects environment, and cost performance is high.
Plant oil base bitumen regenerant adds Calx or white carbon black, is conducive to improving fatigue resistance and the water stability of vegetable oil regeneration asphalt, and then heightens fatigue resistance and the water stability of reclaimed asphalt mixture.
Plant oil base bitumen regenerant prepared by the preparation method of the present invention, make reclaim aged asphalt regeneration during, prepare compound during, described light-weight plant oil will not volatilize, reduce regeneration asphalt premature ageing, and then make the life of reclaimed asphalt mixture, and regeneration efficiency is high, moreover it is possible to reduces and reclaims aged asphalt and mix and stir temperature and can be reduced to 110 DEG C, reduce operational hazards, save the energy.
6th aspect, the present invention also provides for the preparation method of a kind of above-mentioned vegetable oil reclaimed asphalt mixture.
The preparation method of above-mentioned vegetable oil reclaimed asphalt mixture, comprises the following steps:
(1) new mineral aggregate and old mineral aggregate are mixed and stirred；
(2) vegetable oil regeneration asphalt is mixed and stirred with new mineral aggregate, recovery mineral aggregate；
Described vegetable oil regeneration asphalt includes reclaiming aged asphalt and plant oil base bitumen regenerant；
Described plant oil base bitumen regenerant is light-weight plant oil ingredient, stablizes component and modified component, and wherein, described lighter body is light-weight plant oil, and described light-weight plant oil is preprocessed by waste edible oil, obtains after going the removal of impurity.
Preferably, the preparation method of described vegetable oil regeneration asphalt, comprise the following steps:
(1) old asphalt mixture use the mode of extraction device extracting receive aged asphalt；
(2) it is heated to mixing and stirring temperature by recovery aged asphalt；
(3) add to plant oil base bitumen regenerant to have been heated to mix and stir in the recovery aged asphalt of temperature and mix and stir；
(4) mixture reclaiming aged asphalt and plant oil base bitumen regenerant after mixing and stirring is put in baking oven and is grown.
Preferably, described recovery aged asphalt is 110-160 DEG C with the temperature of mixing and stirring of plant oil base bitumen regenerant.It is further preferred that mix and stir temperature to be 130-150 DEG C.Due to the regenerative agent of the present invention, recovery aged asphalt is heated to 110 DEG C, asphalitine therein can be made to soften, become fluid state, it is simple to mix and stir with plant oil base bitumen regenerant.
In any of the above-described scheme preferably, described recovery aged asphalt is 5-60min with the mixing time of plant oil base bitumen regenerant.Preferably, the mixing time is 20-40min.
In any of the above-described scheme preferably, described recovery aged asphalt is 110 DEG C-160 DEG C with the developmental temperature of plant oil base bitumen regenerant.After recovery aged asphalt and plant oil base bitumen regenerant are mixed and stirred, it is incubated further, it is ensured that Colophonium mass-energy scatter well so that the favorable regeneration effect of Colophonium.
In any of the above-described scheme preferably, described recovery aged asphalt is 30-60min with the development time of plant oil base bitumen regenerant.
In any of the above-described scheme preferably, described recovery aged asphalt is shear agitation with the mixing method of plant oil base bitumen regenerant, and stir speed (S.S.) is 2000-10000r/min.Using boxshear apparatus to carry out at a high speed to mix and stir, stir speed (S.S.) is preferably 4000-6000r/min.
In any of the above-described scheme preferably, in described vegetable oil regeneration asphalt, the mass percent of each component is, reclaims aged asphalt 90-94%, plant oil base bitumen regenerant 6-10%.Preferably, aged asphalt 91-93%, plant oil base bitumen regenerant 7-9% are reclaimed.It is further preferred that reclaim aged asphalt 92%, plant oil base bitumen regenerant 8%.
In any of the above-described scheme preferably, the preparation method of described plant oil base bitumen regenerant, comprise the following steps:
(1) with waste edible oil as raw material, pretreatment, isolated light-weight plant oil ingredient are carried out；
(2) weigh appropriate described light-weight plant oil ingredient, and uniformly mix with stable component and modified component；
(3), after ageing at normal temperatures, described plant oil base bitumen regenerant is i.e. obtained.
Bitumen regenerant preparation method prepared by the present invention, can increase the content of light component in Colophonium, reduces asphalt content, effectively reduces pitch viscosity, recovers asphalt performance.
Described light-weight plant oil ingredient forms composite after mixing and stirring with stablized component and modified component, and described composite is plant oil base bitumen regenerant.
In any of the above-described scheme preferably, described pretreatment includes centrifugal and/or filters.
In any of the above-described scheme preferably, described centrifugal rotating speed is 8000r/min, and centrifugation time is 10min.
In any of the above-described scheme preferably, described filtration is to be carried out by filter paper or filter screen.
In any of the above-described scheme preferably, the aperture of described filter screen is 0.667mm, and the aperture of filter paper is 90 μm.
In any of the above-described scheme preferably, described centrifugal and/or filtration uses filter centrifugal to be centrifuged filtering, and can realize being centrifuged and filter a step and complete, simple to operation.
In any of the above-described scheme preferably, described waste edible oil is before being centrifuged, filtering, first waste edible oil is carried out precipitation, to obtain more preferable waste edible oil pretreating effect, impurity in the light-weight plant oil obtained is less, and the plant oil base bitumen regenerant prepared is higher to the regeneration efficiency reclaiming aged asphalt.
In any of the above-described scheme preferably, described precipitation carries out 48 hours.
In any of the above-described scheme preferably, described precipitation carries out 60 hours.
In any of the above-described scheme preferably, described precipitation carries out 72 hours.
In any of the above-described scheme preferably, described component of stablizing includes resin and stearic acid.
In any of the above-described scheme preferably, described stablizing in component, resin and stearic mass ratio are 1:1.
In any of the above-described scheme preferably, before described resin is oily with described light-weight plant and described modified component mixes, first makes it melt, form fluid, in order to and described light-weight plant oil and modified component uniformly mix.
In any of the above-described scheme preferably, described resin is Petropols.
In any of the above-described scheme preferably, described resin is C5 Petropols.
In any of the above-described scheme preferably, described resin is C9 Petropols.
In any of the above-described scheme preferably, described modified component includes white carbon black and/or Calx.Add Calx or white carbon black, be conducive to improving fatigue resistance and the water stability of regeneration asphalt, and then heighten fatigue resistance and the water stability of reclaimed asphalt mixture.Wherein Calx can be quick lime or Calx, can reach identical effect.
In any of the above-described scheme preferably, the particle diameter of described white carbon black is 10nm.
In any of the above-described scheme preferably, described light-weight plant oil ingredient is 2-5h with the digestion time of stablized component and modified component.
In any of the above-described scheme preferably, described light-weight plant oil ingredient is 3-4h with the digestion time of stablized component and modified component.
The present invention proves through lot of experiments, and in the digestion time of 2-5h, three kinds of materials can be sufficiently mixed uniformly.Preferably, digestion time is 3-4h.
In any of the above-described scheme preferably, described mineral aggregate is 120-170 DEG C with the temperature of mixing and stirring of vegetable oil regeneration asphalt.
In any of the above-described scheme preferably, mix and stir temperature and be 140-150 DEG C.
In any of the above-described scheme preferably, described mineral aggregate is 50-120s with the mixing time of vegetable oil regeneration asphalt.Preferably, the mixing time is 80-100s.
The preparation method of the vegetable oil reclaimed asphalt mixture of the present invention, by being directly appended to plant oil base bitumen regenerant reclaim in aged asphalt, it is prepared as vegetable oil regeneration asphalt, again this vegetable oil regeneration asphalt is directly appended in the mineral aggregate of certain grating, forming vegetable oil reclaimed asphalt mixture, this preparation method is simple, and cost control is good, reach the effect of energy-saving and emission-reduction, and this vegetable oil reclaimed asphalt mixture has good pavement performance.
Accompanying drawing explanation
Fig. 1 is the stability result of the plant oil base bitumen regenerant in embodiment 1.1-1.13.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1.1
One vegetable oil base bitumen regenerant, by light-weight plant oil ingredient, stablize component, modified component is composited, wherein said light-weight plant oil is the filtrate obtained after being centrifuged, filtering by waste edible oil, during being centrifuged and filtering, described centrifugal filtration can use filter centrifugal, described for 8000r/min, centrifugation time is 10min.Described filtration is by filter paper or filter screen, and the aperture of filter screen is 0.667mm, and the aperture of filter paper is 90 μm.
Described plant oil base bitumen regenerant is uniformly dispersed for the most each component, does not isolate the homogeneous mixture of lamination.
In this example, stablizing component is C5 Petropols and stearic acid, and C5 Petropols form fluid through fusing in advance, in order to mixs homogeneously with described light-weight plant oil and modified component energy, is beneficial to prepare homogeneous plant oil base bitumen regenerant.
In this example, modified component is white carbon black.The particle diameter of described white carbon black is 10nm.
In the plant oil base bitumen regenerant of the present embodiment, the mass percent of light-weight plant oil ingredient is 60%, and the mass percent stablizing component is 20%, and C5 Petropols and stearic acid respectively account for 10%, and the mass percent of white carbon black is 20%.
Reclaiming as a example by aged asphalt by 10000g, the preparation method of above-mentioned plant oil base bitumen regenerant is as follows:
1) with waste edible oil as raw material, first precipitation 48 hours, use filter centrifugal to be centrifuged waste edible oil filtering, centrifugal rotating speed is 8000r/min, and centrifugation time is 10min, isolated light-weight plant oil ingredient；
2) weigh described light-weight plant oil, and the described light-weight plant oil ingredient weighed is poured in container, stablize component with described and modified component mixes, can select to be sequentially added into stable component and modified component；
3) it is aged 2 hours at normal temperatures, i.e. obtains described plant oil base bitumen regenerant.
The plant oil base bitumen regenerant that need to prepare is reclaim aged asphalt 0.06 times, i.e. 600g.In plant oil base bitumen regenerant, the mass percent of light-weight plant oil ingredient is 60%, i.e. 360g；The mass percent stablizing component is 20%, i.e. 120g (C5 Petropols 60g, stearic acid 60g), the mass percent of anti-strip component is 20%, i.e. 120g.
Embodiment 1.2
One vegetable oil base bitumen regenerant, substantially the same manner as Example 1, except for the difference that, in the plant oil base bitumen regenerant of the present embodiment, the mass percent of light-weight plant oil ingredient is 70%, and the mass percent stablizing component is 15%, and the mass percent of anti-strip component is 15%.
In the preparation process of described plant oil base bitumen regenerant, reclaiming as a example by aged asphalt by 10000g equally, the plant oil base bitumen regenerant that need to prepare is reclaim aged asphalt 0.07 times, i.e. 700g.In plant oil base bitumen regenerant, the mass percent of light-weight plant oil ingredient is 70%, i.e. 490g；The mass percent stablizing component is 15%, i.e. 105g (stearic acid and each 52.5g of C5 Petropols), the mass percent of white carbon black (as modified component, also serve as anti-strip component) is 15%, i.e. 105g.
In the present embodiment, light oil component, the digestion time that mixes and stirs stablizing component and modified component are 3h, waste edible oil elder generation precipitation 60 hours.
Embodiment 1.3
One vegetable oil base bitumen regenerant, substantially the same manner as Example 1, except for the difference that, in the plant oil base bitumen regenerant of the present embodiment, the mass percent of light-weight plant oil ingredient is 80%, and the mass percent stablizing component is 10%, and the mass percent of anti-strip component is 10%.
In the preparation process of described plant oil base bitumen regenerant, reclaiming as a example by aged asphalt by 10000g equally, the plant oil base bitumen regenerant that need to prepare is reclaim aged asphalt 0.08 times, i.e. 800g.In plant oil base bitumen regenerant, the mass percent of light-weight plant oil ingredient is 80%, i.e. 640g；The mass percent stablizing component is 10%, i.e. 180g (C5 Petropols and each 90g of stearic acid), the mass percent of white carbon black is 10%, i.e. 180g.
In the present embodiment, light oil component, the digestion time that mixes and stirs stablizing component and modified component are 4h, waste edible oil elder generation precipitation 72 hours.
Embodiment 1.4
One vegetable oil base bitumen regenerant, substantially the same manner as Example 1, except for the difference that, in the plant oil base bitumen regenerant of the present embodiment, the mass percent of light-weight plant oil ingredient is 90%, and the mass percent stablizing component is 5%, and the mass percent of anti-strip component is 5%.
In the preparation process of described plant oil base bitumen regenerant, equally, reclaiming as a example by aged asphalt by 10000g, the plant oil base bitumen regenerant that need to prepare is reclaim aged asphalt 0.09 times, i.e. 900g.In plant oil base bitumen regenerant, the mass percent of light-weight plant oil ingredient is 90%, i.e. 810g；The mass percent stablizing component is 5%, i.e. 45g (C5 Petropols and each 22.5g of stearic acid), the mass percent of white carbon black is 5%, i.e. 45g.
In the present embodiment, light oil component, the digestion time that mixes and stirs stablizing component and modified component are 5h.
Embodiment 1.5
One vegetable oil base bitumen regenerant, essentially identical with above-described embodiment, except for the difference that, described modified component is Calx.Calx can be quick lime or Calx.
The preparation method of described plant oil base bitumen regenerant can be selected for identical method.
Embodiment 1.6
One vegetable oil base bitumen regenerant, essentially identical with above-described embodiment, except for the difference that, described modified component is white carbon black and Calx, and white carbon black is identical with the addition of Calx.Calx can be quick lime or Calx.
The preparation method of described plant oil base bitumen regenerant can be selected for identical method.
Embodiment 1.7
One vegetable oil base bitumen regenerant, essentially identical with above-described embodiment, except for the difference that, to stablize in component, stearic acid accounts for 60%, C5 Petropols 40%.
The preparation method of described plant oil base bitumen regenerant can be selected for identical method.
Embodiment 1.8
One vegetable oil base bitumen regenerant, essentially identical with above-described embodiment, except for the difference that, stablizing component is stearic acid.
The preparation method of described plant oil base bitumen regenerant can be selected for identical method.
Embodiment 1.9
One vegetable oil base bitumen regenerant, essentially identical with above-described embodiment, except for the difference that, stablize component C5 Petropols.
The preparation method of described plant oil base bitumen regenerant can be selected for identical method.
Embodiment 1.10
One vegetable oil base bitumen regenerant, essentially identical with above-described embodiment, except for the difference that, stablize component C9 Petropols.
The preparation method of described plant oil base bitumen regenerant can be selected for identical method.
Embodiment 1.11
One vegetable oil base bitumen regenerant, essentially identical with above-described embodiment, except for the difference that, the preparation of described plant oil base bitumen regenerant is without precipitation.
Embodiment 1.12
One vegetable oil base bitumen regenerant, essentially identical with above-described embodiment, except for the difference that, the preparation of described plant oil base bitumen regenerant is without centrifugal filtration.
Embodiment 1.13
One vegetable oil base bitumen regenerant, essentially identical with above-described embodiment, except for the difference that, the preparation of described plant oil base bitumen regenerant is without ageing.
Embodiment 2.1
One vegetable oil regeneration asphalt, for composite, described vegetable oil regeneration asphalt includes reclaiming aged asphalt and plant oil base bitumen regenerant.Light-weight plant oil 80% in described plant oil base bitumen regenerant, stablize component 10%, modified component 10%.
As a example by preparation 10000g vegetable oil regeneration asphalt, the mass percent that need to reclaim aged asphalt is 94%, i.e. 9400g, and need to prepare plant oil base bitumen regenerant mass percent is 6%, i.e. 600g.During preparation plant oil base bitumen regenerant, need light-weight plant oil ingredient 480g, stablize component 60g (C5 Petropols and each 30g of stearic acid), modified component (white carbon black, particle diameter is 10nm) 60g.
The preparation method of above-mentioned vegetable oil regeneration asphalt is as follows:
(1) from old asphalt mixture, in the way of extracting, aged asphalt is reclaimed；
(2) it is heated to mixing and stirring temperature by recovery aged asphalt；
(3) add to plant oil base bitumen regenerant to have been heated to mix and stir in the recovery aged asphalt of temperature and mix and stir；
(4) mixture reclaiming aged asphalt and plant oil base bitumen regenerant after mixing and stirring is put in baking oven and is grown.
Reclaim aged asphalt and plant oil base bitumen regenerant mix and stir temperature be 115 DEG C, the mixing time be 50min；The developmental temperature reclaiming aged asphalt and plant oil base bitumen regenerant is 115 DEG C, and development time is 30min.Using boxshear apparatus to carry out at a high speed to mix and stir, stir speed (S.S.) is 4000r/min.
Embodiment 2.2
One vegetable oil regeneration asphalt, essentially identical with embodiment 2.1, except for the difference that, equally, as a example by preparing 10000g vegetable oil regeneration asphalt, the mass percent that need to reclaim aged asphalt is 93%, i.e. 9300g, need to prepare plant oil base bitumen regenerant mass percent is 7%, i.e. 700g.During preparation plant oil base bitumen regenerant, need light-weight plant oil ingredient 560g, stablize component 70g (C5 Petropols and each 35g of stearic acid), modified component (white carbon black, particle diameter is 10nm) 70g.
The preparation method of above-mentioned vegetable oil regeneration asphalt is as follows:
(1) from old asphalt mixture, in the way of extracting, aged asphalt is reclaimed；
(2) it is heated to mixing and stirring temperature by recovery aged asphalt；
(3) add to plant oil base bitumen regenerant to have been heated to mix and stir in the recovery aged asphalt of temperature and mix and stir；
(4) mixture reclaiming aged asphalt and plant oil base bitumen regenerant after mixing and stirring is put in baking oven and is grown.
Reclaim aged asphalt and plant oil base bitumen regenerant mix and stir temperature be 130 DEG C, the mixing time be 60min；The developmental temperature reclaiming aged asphalt and plant oil base bitumen regenerant is 130 DEG C, and development time is 40min.Using boxshear apparatus to carry out at a high speed to mix and stir, stir speed (S.S.) is 4000r/min.
Embodiment 2.3
One vegetable oil regeneration asphalt, essentially identical with embodiment 2.1, except for the difference that, equally as a example by preparation 10000g vegetable oil regeneration asphalt, the mass percent that need to reclaim aged asphalt is 92%, i.e. 9200g, need to prepare plant oil base bitumen regenerant mass percent is 8%, i.e. 800g.During preparation plant oil base bitumen regenerant, need light-weight plant oil ingredient 640g, stablize component 80g (C5 Petropols and each 35g of stearic acid), modified component (white carbon black, particle diameter is 10nm) 80g.
The preparation method of above-mentioned vegetable oil regeneration asphalt is as follows:
(1) from old asphalt mixture, in the way of extracting, aged asphalt is reclaimed；
(2) it is heated to mixing and stirring temperature by recovery aged asphalt；
(3) add to plant oil base bitumen regenerant to have been heated to mix and stir in the recovery aged asphalt of temperature and mix and stir；
(4) mixture reclaiming aged asphalt and plant oil base bitumen regenerant after mixing and stirring is put in baking oven and is grown.
Reclaim aged asphalt and plant oil base bitumen regenerant mix and stir temperature be 145 DEG C, the mixing time be 70min；The developmental temperature reclaiming aged asphalt and plant oil base bitumen regenerant is 145 DEG C, and development time is 50min.Using boxshear apparatus to carry out at a high speed to mix and stir, stir speed (S.S.) is 4000r/min.
Embodiment 2.4
One vegetable oil regeneration asphalt, essentially identical with embodiment 2.1, except for the difference that, equally as a example by preparation 10000g vegetable oil regeneration asphalt, the mass percent that need to reclaim aged asphalt is 91%, i.e. 9100g, need to prepare plant oil base bitumen regenerant mass percent is 9%, i.e. 900g.During preparation plant oil base bitumen regenerant, need light-weight plant oil ingredient 720g, stablize component 90g (C5 Petropols and each 35g of stearic acid), modified component (white carbon black, particle diameter is 10nm) 90g.
The preparation method of above-mentioned vegetable oil regeneration asphalt is as follows:
(1) from old asphalt mixture, in the way of extracting, aged asphalt is reclaimed；
(2) it is heated to mixing and stirring temperature by recovery aged asphalt；
(3) add to plant oil base bitumen regenerant to have been heated to mix and stir in the recovery aged asphalt of temperature and mix and stir；
(4) mixture reclaiming aged asphalt and plant oil base bitumen regenerant after mixing and stirring is put in baking oven and is grown.
Reclaim aged asphalt and plant oil base bitumen regenerant mix and stir temperature be 160 DEG C, the mixing time be 80min；The developmental temperature reclaiming aged asphalt and plant oil base bitumen regenerant is 160 DEG C, and development time is 60min.Using boxshear apparatus to carry out at a high speed to mix and stir, stir speed (S.S.) is 4000r/min.
Embodiment 2.5
One vegetable oil regeneration asphalt, unlike embodiment 2.1, light-weight plant oil 90% in plant oil base bitumen regenerant, stablizes component 5%, modified component 5%.
When preparing described vegetable oil regeneration asphalt, the temperature of mixing and stirring reclaiming aged asphalt and plant oil base bitumen regenerant is 110 DEG C, and the mixing time is 60min；The developmental temperature reclaiming aged asphalt and plant oil base bitumen regenerant is 110 DEG C, and development time is 30min.Using boxshear apparatus to carry out at a high speed to mix and stir, stir speed (S.S.) is 4000r/min.
Embodiment 2.6
One vegetable oil regeneration asphalt, unlike embodiment 2.1, light-weight plant oil 70% in plant oil base bitumen regenerant, stablizes component 15%, modified component 15%.
When preparing described vegetable oil regeneration asphalt, the temperature of mixing and stirring reclaiming aged asphalt and plant oil base bitumen regenerant is 120 DEG C, and the mixing time is 60min；The developmental temperature reclaiming aged asphalt and plant oil base bitumen regenerant is 120 DEG C, and development time is 30min.Using boxshear apparatus to carry out at a high speed to mix and stir, stir speed (S.S.) is 4000r/min.
Embodiment 2.7
One vegetable oil regeneration asphalt, unlike embodiment 2.1, light-weight plant oil 60% in plant oil base bitumen regenerant, stablizes component 20%, modified component 20%.
When preparing described vegetable oil regeneration asphalt, the temperature of mixing and stirring reclaiming aged asphalt and plant oil base bitumen regenerant is 150 DEG C, and the mixing time is 60min；The developmental temperature reclaiming aged asphalt and plant oil base bitumen regenerant is 110 DEG C, and development time is 30min.Using boxshear apparatus to carry out at a high speed to mix and stir, stir speed (S.S.) is 4000r/min.
Embodiment 2.8
One vegetable oil regeneration asphalt and preparation method thereof, essentially identical with above-described embodiment, except for the difference that, described modified component is Calx.
Embodiment 2.9
One vegetable oil regeneration asphalt and preparation method thereof, essentially identical with above-described embodiment, except for the difference that, described modified component is white carbon black and Calx, and white carbon black is identical with the addition of Calx.
Embodiment 2.10
One vegetable oil regeneration asphalt and preparation method thereof, essentially identical with above-described embodiment, except for the difference that, to stablize in component, stearic acid accounts for 60%, C5 Petropols 40%.
Embodiment 2.11
One vegetable oil regeneration asphalt and preparation method thereof, essentially identical with above-described embodiment, except for the difference that, stablizing component is stearic acid.
Embodiment 2.12
One vegetable oil regeneration asphalt and preparation method thereof, essentially identical with above-described embodiment, except for the difference that, stablize component C5 Petropols.
Embodiment 2.13
One vegetable oil regeneration asphalt and preparation method thereof, essentially identical with above-described embodiment, except for the difference that, stablizing component is C9 Petropols.
Embodiment 3.1
One vegetable oil reclaimed asphalt mixture, for composite, described vegetable oil reclaimed asphalt mixture includes new mineral aggregate, reclaims mineral aggregate and vegetable oil regeneration asphalt.Described vegetable oil regeneration asphalt and preparation method thereof is the one in embodiment 2.1-2.13, including reclaiming aged asphalt and plant oil base bitumen regenerant.Described plant oil base bitumen regenerant and preparation method thereof, for a kind of in embodiment 1.1-1.10, including light oil component, stablizes component and modified component.
In the present embodiment, mineral aggregate is basalt.
In described mineral aggregate, the mass percent of each particle diameter mineral aggregate is, particle diameter 26.5-37.5mm is 0-10%, particle diameter 19.0-26.5mm is 0-10%, particle diameter 16.0-19.0mm is 0-20%, particle diameter 13.2-16.0mm is 0-20%, particle diameter 4.75-9.5mm is 15-50%, particle diameter 0.15-2.36mm is 40-70%, particle diameter 0-0.075mm is 10-15%.
As a example by preparation 10000g vegetable oil reclaimed asphalt mixture, the mass percent needing new mineral aggregate is 60%, i.e. 6000g；The mass percent that need to reclaim mineral aggregate is 35%, i.e. 3500g；The mass percent that need to prepare vegetable oil regeneration asphalt is 5%, i.e. 500g.
The preparation method of above-mentioned vegetable oil reclaimed asphalt mixture is as follows:
(1) new mineral aggregate and old mineral aggregate are mixed and stirred in proportion；
(2) vegetable oil regeneration asphalt is mixed and stirred certain time the most at a certain temperature with new mineral aggregate, recovery mineral aggregate.
Mineral aggregate, the temperature of mixing and stirring of vegetable oil regeneration asphalt are 130 DEG C, and the mixing time is 90s.
Embodiment 3.2
One vegetable oil reclaimed asphalt mixture, essentially identical with embodiment 3.1, except for the difference that, in the present embodiment, mineral aggregate is basalt.
As a example by preparation 10000g vegetable oil reclaimed asphalt mixture, the mass percent needing new mineral aggregate is 50%, i.e. 5000g；The mass percent that need to reclaim mineral aggregate is 40%, i.e. 4000g；The mass percent that need to prepare vegetable oil regeneration asphalt is 10%, i.e. 1000g.
The preparation method of above-mentioned vegetable oil reclaimed asphalt mixture is identical with embodiment 3.1
Embodiment 3.3
One vegetable oil reclaimed asphalt mixture, essentially identical with embodiment 3.1, except for the difference that, in the present embodiment, mineral aggregate is basalt.
As a example by preparation 10000g vegetable oil reclaimed asphalt mixture, the mass percent needing new mineral aggregate is 40%, i.e. 4000g；The mass percent that need to reclaim mineral aggregate is 45%, i.e. 4500g；The mass percent that need to prepare vegetable oil regeneration asphalt is 15%, i.e. 1500g.
The preparation method of above-mentioned vegetable oil reclaimed asphalt mixture is identical with embodiment 3.1.
Embodiment 3.4
One vegetable oil reclaimed asphalt mixture, unlike the embodiments above, mineral aggregate is 120 DEG C with the temperature of mixing and stirring of vegetable oil regeneration asphalt, and the mixing time is 120s.
Embodiment 3.5
One vegetable oil reclaimed asphalt mixture, unlike the embodiments above, mineral aggregate is 140 DEG C with the temperature of mixing and stirring of vegetable oil regeneration asphalt, and the mixing time is 100s.
Embodiment 3.6
One vegetable oil reclaimed asphalt mixture, unlike the embodiments above, mineral aggregate is 150 DEG C with the temperature of mixing and stirring of vegetable oil regeneration asphalt, and the mixing time is 80s.
Embodiment 3.7
One vegetable oil reclaimed asphalt mixture, unlike the embodiments above, mineral aggregate is 170 DEG C with the temperature of mixing and stirring of vegetable oil regeneration asphalt, and the mixing time is 50s.
Embodiment 3.8
One vegetable oil reclaimed asphalt mixture, unlike the embodiments above, the regenerative agent used is the vegetable oil without precipitation.
Embodiment 3.9
One vegetable oil reclaimed asphalt mixture, unlike the embodiments above, the regenerative agent used is the vegetable oil without centrifugal filtration.
Embodiment 3.10
One vegetable oil reclaimed asphalt mixture, unlike the embodiments above, the regenerative agent used is the vegetable oil without ageing.
The performance test results of the plant oil base bitumen regenerant prepared by embodiment 1.1 to embodiment 1.13 is as shown in table 1.
The performance test results of table 1 plant oil base bitumen regenerant
The stability result of the plant oil base bitumen regenerant in embodiment 1.1-1.13, as it is shown in figure 1, from figure 1 it appears that the stability of vegetable oil regenerative agent is the best, can stably preserve, does not haves the phenomenon of isolation layering.
According to " highway engineering Colophonium and Asphalt Mixture Experiment code " (JTJE20-2011), the vegetable oil regeneration asphalt prepared by embodiment 2.1 to embodiment 2.13 being carried out the performance tests such as needle penetration, ductility, softening point, viscosity, test result is as shown in table 2.
The performance test results of table 2 vegetable oil regeneration asphalt
From Table 2, it can be seen that the vegetable oil regeneration asphalt of the plant oil base bitumen regenerant regeneration of the present invention, its various aspects of performance is all the most close with new Colophonium, illustrates, reclaims aged asphalt regeneration effect the best.And the fatigue resistance of vegetable oil regeneration asphalt and water stability are significantly larger than new Colophonium, illustrating that the fatigue resistance of vegetable oil regeneration asphalt and water stability are not worse than new Colophonium, be difficult to aging, service life is long.
On the other hand, during regeneration asphalt, the addition of plant oil base bitumen regenerant is considerably less, even less than the 10% of vegetable oil regeneration asphalt, illustrates that plant oil base bitumen regenerant is the highest to the regeneration efficiency reclaiming aged asphalt, and cost performance is the highest.
Vegetable oil reclaimed asphalt mixture prepared by embodiment 3.1 to embodiment 3.7 carries out high temperature dynamic stability, anti-low-temperature cracking and freeze-thaw split test, and test result is as shown in table 3.From the point of view of test result, the high temperature stability performance of vegetable oil reclaimed asphalt mixture, crack resistance at low-temperature and water stability can be recovered effectively.
The pavement performance test result of table 3 vegetable oil reclaimed asphalt mixture
As can be seen from Table 3, the serviceability of vegetable oil reclaimed asphalt mixture is all much better than the compound of new Colophonium preparation, especially fatigue resistance and water stability, illustrate that the vegetable oil regeneration asphalt of the plant oil base bitumen regenerant regeneration of the present invention is favorably improved the pavement performance of reclaimed asphalt mixture, especially fatigue resistance and water stability.
Waste edible oil (without the waste vegetable oil of centrifugal filtration), the light-weight plant oil obtained through centrifugal filtration and mineral oil (aromatic naphtha, furfural oil) the bitumen regenerant regeneration efficiency that single-factor variable prepares, the ageing resistance of regeneration asphalt, fatigue resistance, water stability contrast are as shown in table 4.
Table 4 is through centrifugal filtration, without the regeneration effect of centrifugal filtration vegetable oil Yu mineral oil
From table 4, it can be seen that, the bitumen regenerant (the plant oil base bitumen regenerant that the present invention provides) that the light-weight plant oil obtained through centrifugal filtration prepares is significantly larger than other two kinds to the rate of producing effects again reclaiming aged asphalt, and ageing resistance, fatigue resistance and water stability are far better than other two kinds.
Stablizing component is resin, stearic acid, resin and stearic acid, by the contrast to regenerative agent uniformity, adds resin and stearic acid, and the uniformity of the plant oil base bitumen regenerant obtained is best.
Waste edible oil without precipitation directly with stablize component, modified component mixes, waste edible oil elder generation precipitation is that stable component, modified component mix for more than 48 hours, to the plant oil base bitumen regenerant obtained regeneration heroic lovers, fatigue resistance, water stability correction data as shown in table 4.
As can be known from Table 4, after waste edible oil precipitation 48, then the light-weight plant oil that centrifugal filtration obtains is more conducive to the uniform, stable of described plant oil base bitumen regenerant, and regeneration efficiency is higher, and the fatigue resistance of regeneration asphalt, water stability are more preferable.
Those skilled in the art are understood that, vegetable oil regeneration asphalt of the present invention and preparation method thereof includes summary of the invention and the combination in any of detailed description of the invention part of the invention described above description, does not has each scheme these combinations constituted to describe one by one as space is limited and for making description simple and clear.All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, should be included within the scope of the present invention.

Claims (23)

1. a vegetable oil reclaimed asphalt mixture, it is characterized in that, including mineral aggregate, reclaim mineral aggregate and vegetable oil regeneration asphalt, described vegetable oil regeneration asphalt includes reclaiming aged asphalt and plant oil base bitumen regenerant, described plant oil base bitumen regenerant includes lighter body component, stablizes component and modified component, described lighter body is light-weight plant oil, and described light-weight plant oil is preprocessed by waste edible oil, obtains after going the removal of impurity.
A vegetable oil reclaimed asphalt mixture the most according to claim 1, it is characterised in that described pretreatment includes centrifugal and/or filters.
A vegetable oil reclaimed asphalt mixture the most according to claim 1, it is characterised in that described component of stablizing includes resin and stearic acid.
A vegetable oil reclaimed asphalt mixture the most according to claim 3, it is characterised in that described stablize in component, resin and stearic mass ratio are 1:1.
A vegetable oil reclaimed asphalt mixture the most according to claim 1, it is characterised in that described resin is Petropols.
A vegetable oil reclaimed asphalt mixture the most according to claim 1, it is characterised in that described modified component includes white carbon black and/or Calx.
A vegetable oil reclaimed asphalt mixture the most according to claim 1, it is characterised in that in described plant oil base bitumen regenerant, the mass percent of each component is that light-weight plant line of oils is divided into 60-90%, stablizes component 5-20%, modified component 5-20%；
Being preferably, light-weight plant line of oils is divided into 70-90%, stablizes component 5-15%, modified component 5-15%；
More preferably, light-weight plant line of oils is divided into 80-90%, stablizes component 5-10%, modified component 5-10%.
A vegetable oil reclaimed asphalt mixture the most according to claim 1, it is characterised in that in described vegetable oil regeneration asphalt, the mass percent of each component is, reclaims aged asphalt 90-94%, plant oil base bitumen regenerant 6-10%；
It is preferably, reclaims aged asphalt 91-93%, plant oil base bitumen regenerant 7-9%；
More preferably, aged asphalt 92%, plant oil base bitumen regenerant 8% are reclaimed.
A vegetable oil reclaimed asphalt mixture the most according to claim 1, it is characterized in that, in described vegetable oil reclaimed asphalt mixture, the mass percent of each component is, mineral aggregate 40-60%, reclaim mineral aggregate 35-45%, vegetable oil regeneration asphalt 5-15%.
A vegetable oil reclaimed asphalt mixture the most according to claim 1, it is characterised in that described mineral aggregate or recovery mineral aggregate are basalt and/or diabase.
11. vegetable oil reclaimed asphalt mixtures according to claim 1, it is characterized in that, in described mineral aggregate or recovery mineral aggregate, the mass percent of each particle diameter mineral aggregate is that particle diameter 26.5-37.5mm is 0-10%, particle diameter 19.0-26.5mm is 0-10%, particle diameter 16.0-19.0mm is 0-20%, particle diameter 13.2-16.0mm is 0-20%, particle diameter 4.75-9.5mm is 15-50%, particle diameter 0.15-2.36mm is 40-70%, particle diameter 0-0.075mm is 10-15%.
The preparation method of 12. 1 vegetable oil reclaimed asphalt mixtures, it is characterised in that comprise the following steps:
(1) new mineral aggregate and recovery mineral aggregate are mixed and stirred；
(2) vegetable oil regeneration asphalt is mixed and stirred with new mineral aggregate, recovery mineral aggregate, obtain vegetable oil reclaimed asphalt mixture；
Described vegetable oil regeneration asphalt includes reclaiming aged asphalt and plant oil base bitumen regenerant；
Described plant oil base bitumen regenerant is light-weight plant oil ingredient, stablizes component and modified component, and described lighter body is light-weight plant oil, and described light-weight plant oil is preprocessed by waste edible oil, obtains after going the removal of impurity.
The preparation method of 13. vegetable oil reclaimed asphalt mixtures according to claim 12, it is characterised in that the preparation method of described vegetable oil regeneration asphalt, comprises the following steps:
(1) old asphalt mixture use the mode of extraction device extracting receive aged asphalt；
(2) it is heated to mixing and stirring temperature by recovery aged asphalt；
(3) add to plant oil base bitumen regenerant to have been heated to mix and stir in the recovery aged asphalt of temperature and mix and stir；
(4) mixture reclaiming aged asphalt and plant oil base bitumen regenerant after mixing and stirring is put in baking oven and is grown.
The preparation method of 14. vegetable oil reclaimed asphalt mixtures according to claim 13, it is characterised in that described recovery aged asphalt is 110-160 DEG C with the temperature of mixing and stirring of plant oil base bitumen regenerant, and the mixing time is 20-40min.
The preparation method of 15. vegetable oil reclaimed asphalt mixtures according to claim 13, it is characterised in that described recovery aged asphalt is 110 DEG C-160 DEG C with the developmental temperature of plant oil base bitumen regenerant, and development time is 30-60min.
The preparation method of 16. vegetable oil reclaimed asphalt mixtures according to claim 13, it is characterised in that in described vegetable oil regeneration asphalt, the mass percent of each component is, reclaims aged asphalt 90-94%, plant oil base bitumen regenerant 6-10%；
It is preferably, reclaims aged asphalt 91-93%, plant oil base bitumen regenerant 7-9%；
More preferably, aged asphalt 92%, plant oil base bitumen regenerant 8% are reclaimed.
The preparation method of 17. vegetable oil reclaimed asphalt mixtures according to claim 12, it is characterised in that the preparation method of described plant oil base bitumen regenerant, comprises the following steps:
(1) with waste edible oil as raw material, it is centrifuged or filters, isolated light-weight plant oil ingredient；
(2) weigh appropriate described light-weight plant oil ingredient, and uniformly mix with stable component and modified component；
(3), after ageing at normal temperatures, described plant oil base bitumen regenerant is i.e. obtained.
The preparation method of 18. vegetable oil reclaimed asphalt mixtures according to claim 17, it is characterised in that before described resin is oily with described light-weight plant and described modified component mixes, first makes it melt, form fluid.
The preparation method of 19. vegetable oil reclaimed asphalt mixtures according to claim 17, it is characterised in that described light-weight plant oil ingredient is 2-5h, preferably 3-4h with the digestion time of stablized component and modified component.
The preparation method of 20. vegetable oil reclaimed asphalt mixtures according to claim 12, it is characterised in that described component of stablizing includes that resin and stearic acid, resin and stearic mass ratio are 1:1.
The preparation method of 21. vegetable oil reclaimed asphalt mixtures according to claim 12, it is characterised in that described resin is Petropols.
The preparation method of 22. vegetable oil reclaimed asphalt mixtures according to claim 12, it is characterised in that described modified component includes white carbon black and/or Calx.
The preparation method of 23. vegetable oil reclaimed asphalt mixtures according to claim 12, it is characterized in that, in described plant oil base bitumen regenerant, the mass percent of each component is that light-weight plant line of oils is divided into 60-90%, stablizes component 5-20%, modified component 5-20%；
Being preferably, light-weight plant line of oils is divided into 70-90%, stablizes component 5-15%, modified component 5-15%；
More preferably, light-weight plant line of oils is divided into 80-90%, stablizes component 5-10%, modified component 5-10%.
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