CN109021599A - A kind of regenerative agent and preparation method thereof suitable for aged asphalt - Google Patents
A kind of regenerative agent and preparation method thereof suitable for aged asphalt Download PDFInfo
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- CN109021599A CN109021599A CN201810844696.4A CN201810844696A CN109021599A CN 109021599 A CN109021599 A CN 109021599A CN 201810844696 A CN201810844696 A CN 201810844696A CN 109021599 A CN109021599 A CN 109021599A
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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- H—ELECTRICITY
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- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
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Abstract
The regenerative agent and preparation method thereof that the invention discloses a kind of suitable for aged asphalt, belong to field of road, bitumen regenerant of the present invention is by 10-20 parts of furfural extract oil, 10-15 parts of bisphenol A type epoxy resin, 1-3 parts of glycidyl methacrylate, 1-3 parts of repefral, 1-3 parts of ethyl alcohol, 2-5 parts of cycloaliphatic epoxy resin, 5-10 parts of used oil, 2-5 parts of dibutyl tin dilaurate, 1-3 parts of cyclohexanone, 2-5 parts of epoxy aliphatic acid methyl ester, 1-3 parts of petroleum ether, 1-3 parts of epoxidized soybean oil, the naphthenic base distillate of 1-5 parts of heavy oil and 1-3 part " composition, it is good with high-temperature behavior, low-temperature cracking-resistance is excellent, ageing resistance and the strong feature of weatherability, suitable for large-scale promotion application.
Description
Technical field
The present invention relates to technical field of road engineering more particularly to a kind of regenerative agents and its system suitable for aged asphalt
Preparation Method.
Background technique
After road builds up a period of time, periodic maintenance is needed.The waste residue that road maintenance generates has become road maintenance maximum
Burden, especially pavement asphalt material becomes one of solid pollution source, this is also not permitted in environmental protection.
In consideration of it, how discarded asphalt pavement material to be recycled to the matter of utmost importance for becoming road maintenance.Bituminous pavement
Material by it is discarded be primarily due to pitch temperature, oxygen, illumination, rainwater and the traffic load the effects of under, a system of generation
Physics, the chemical changes such as column volatilization, oxidation, polymerization make the volatilization of lightweight oil cause ageing of asphalt, and road surface generates damage and needs to carry out
Again institute is repaired extremely.Its essential performance is reawaked to the aged asphalt in discarded asphalt pavement material to lay equal stress on newly using i.e. title
For pitch regenerate.Most important namely regenerated dose of material of pitch regeneration.
Publication No. CN 104592772A, publication date are that on May 06th, 2015 Chinese patent literature discloses one kind
Bituminous pavement modifying regenerant, it is characterised in that: its raw material includes the following: 19~65% to change according to mass percent meter
Property aromatic naphtha, 20~55% dibutyl terephthalate, 10~30% liquid petroleum resin, 0.2~1% antioxidant
With 0.5~3% stabilizer；The modified aromatic naphtha is prepared with the following method: will be single shown in aromatic naphtha, structural formula I
Body constitutes reaction system, and metal ion catalyst is added, and reacts 1 hour~8 hours at 130 DEG C~220 DEG C, and modified aromatic hydrocarbons is made
Oil；Wherein: R1Selected from methoxyl group, CH3, ethyl, N (CH3)2, H, ethyoxyl, CH (CH3)2One of.
Publication No. CN 101892069A, publication date are that the Chinese patent literature on November 24th, 2010 discloses one kind
The method for preparing bitumen regenerant, it is characterised in that: be using the mixed solvent of organic solvent or organic solvent and water as extraction
The vacuum distillate of agent, extraction oil and/or catalytic cracked oil pulp to vacuum distillate extracts, and collects raffinate phase and recycles
Extractant obtains the bitumen regenerant；Or extracted with vacuum distillate of the extractant to hydrofinishing, it collects and takes out
Liquid and extractant is recycled out, obtains the bitumen regenerant；Wherein, the organic solvent is selected from following at least one: furfural, benzene
Phenol and N-Methyl pyrrolidone.
There are problems that following two by the prior art of representative of above patent document:
One is the bitumen regenerant high-temperature behavior and low-temperature cracking-resistance that are prepared be not good enough, after asphalt compaction molding
Voidage is higher, and globality is poor with durability, and ageing resistance and weatherability are weaker.
The second is entire preparation process severe reaction conditions, finished product long processing time, storage stability is poor, industrializing implementation
Complexity, high production cost, low yield.
Summary of the invention
The present invention in order to overcome the defects of the prior art described above, provides a kind of bitumen regenerant and preparation method thereof, this hair
The bright bitumen regenerant being prepared, high-temperature behavior is good, and low-temperature cracking-resistance is excellent, and ageing resistance and weatherability are strong；It is entire anti-
Answer mild condition, yield high, it is easy to accomplish industrialized production.
The present invention is achieved through the following technical solutions:
A kind of regenerative agent suitable for aged asphalt, which is characterized in that be composed of the following parts by weight:
The furfural extract oil is 16 parts, bisphenol A type epoxy resin is 12 parts, glycidyl methacrylate is 2 parts,
Repefral is 2 parts, ethyl alcohol is 2 parts, cycloaliphatic epoxy resin is 3 parts, used oil is 9 parts, two fourth of tin dilaurate
Ji Xi is 3 parts, cyclohexanone is 2 parts, epoxy aliphatic acid methyl ester is 3 parts, petroleum ether is 2 parts, epoxidized soybean oil is 2 parts, heavy oil 3
Part, naphthenic base distillate are 2 parts.
A kind of regenerative agent preparation method suitable for aged asphalt, which is characterized in that be successively made of following processing step:
A, it chooses the furfural extract oil of formula ratio and used oil is put into reaction kettle and is mixed and heated to 45 DEG C, then add
The repefral and ethyl alcohol of formula ratio are simultaneously stirred to react 2.5 hours at 80 DEG C, are cooled to 25 DEG C, are added formula
The cyclohexanone of amount simultaneously stirs 1 hour, obtains mixture；
B, the heavy oil and petroleum ether of formula ratio are added into the mixture of step a, is warming up to 75 DEG C, filters dehydration；Again plus
Enter the bisphenol A type epoxy resin and cycloaliphatic epoxy resin of formula ratio, stirs 15 minutes；
C, naphthenic base distillate and epoxidized soybean oil are added, the weight ratio of naphthenic base distillate and epoxidized soybean oil is 2:
1；
D, glycidyl methacrylate, dibutyl tin dilaurate and the epoxyfatty acid first of formula ratio are eventually adding
Ester insulated and stirred 15 minutes, is down to room temperature under the conditions of 110 DEG C of temperatures up to bitumen regenerant.
In the step a, it is the cycle oil using heavy oil as raw material that the normal pressure boiling range of naphthenic base distillate, which is 550 DEG C,
What slurry was evaporated under reduced pressure.
In the step a, furfural extract oil is after extracting in petroleum vacuum distillate and to be removed furfural by furfural and obtained
, arene content 85%, flash-point is 220 DEG C.
In the step b, heavy oil is the heavy oil rich in colloid, and the mass content of colloid is 80%, filters the time of dehydration
It is 30 minutes.
In the step d, the weight of glycidyl methacrylate, dibutyl tin dilaurate and epoxy aliphatic acid methyl ester
Amount is than being 1:2:2, and mixing speed control is at 115 revs/min.
A kind of preparation method of regeneration asphalt, which is characterized in that be successively made of following processing step:
No. 90 pitches and No. 110 pitches are that 3:4 mixing is broken, then carries out screening acquisition partial size and be by step 1 by weight
The mix asphalt of 5mm；
The mix asphalt that partial size is 5mm is put into bituminous pitch storing tank, adds flyash and foamed asphalt, fine coal by step 2
The weight ratio of ash and foamed asphalt is 3:1, is uniformly mixed；
Step 3, by bitumen regenerant and water addition bituminous pitch storing tank, the weight ratio of bitumen regenerant and mix asphalt is
0.9:1 is heated to 165 DEG C, is kept for 165 DEG C of constant temperature, stirs 75 minutes, cooling up to regeneration asphalt.
Beneficial effects of the present invention are mainly manifested in following aspect:
One, of the invention, " furfural extract oil is 10-20 parts, bisphenol A type epoxy resin is 10-15 parts, methacrylic acid contracting
Water glyceride is 1-3 parts, repefral is 1-3 parts, ethyl alcohol is 1-3 parts, cycloaliphatic epoxy resin is 2-5 parts, useless
Machine oil is 5-10 parts, dibutyl tin dilaurate is 2-5 parts, cyclohexanone is 1-3 parts, epoxy aliphatic acid methyl ester is 2-5 parts, petroleum
Ether is 1-3 parts, epoxidized soybean oil is 1-3 parts, heavy oil is 1-5 parts, naphthenic base distillate is 1-3 parts " constitute bitumen regenerant,
The molecular structure of bisphenol A type epoxy resin in formula determines that it has good thermosetting property, can be with a variety of curing agent, catalysis
Agent and additive form the excellent solidfied material of multiple performance, good manufacturability；Do not generate small molecule volatile matter when solidification substantially, it can
Low pressure molding；Solidfied material has very high intensity and adhesive strength, and has higher corrosion resistance；Cooperate furfural extract oil, to old
Changing pitch has good dissolution and emollescence, makes dissolved aged asphalt fill part slight void, the aging drip of softening
Blueness is also convenient for being compacted, and increases globality, enhances durability；It is double that the intramolecular of glycidyl methacrylate had both contained carbon carbon
Key, and contain epoxy group, the synthesis of high molecular material can be widely used for, good reactive diluent and stabilization can be played
The effect of agent；Repefral has very strong solvent plasticizer as a kind of, can be with multi cellulose resin, rubber
Glue, vinylite mix, and have good film forming, adherence and waterproofness；Solvent of the ethyl alcohol as reaction, can make to participate in
The good dissolution of organic matter and inorganic matter of reaction increases contact area, improves reaction rate；Cycloaliphatic epoxy resin, solidification
Material structure afterwards is close, has excellent thermal stability and weatherability, and impact strength is high, and electrical insulating property is good；Tin dilaurate two
Butyl tin is a kind of good plasticizer and catalyst, has excellent lubricity and weatherability；Cyclohexanone is a kind of good
Organic synthesis raw material and solvent；Epoxy aliphatic acid methyl ester can significantly improve the physical property of product as a kind of environment-friendly plasticizer
With extension ageing time, also there is good lubricity, compatibility and dispersibility；Petroleum ether is former for organic synthesis and chemical industry
Material, is good organic solvent；Epoxidized soybean oil has excellent thermal stability and photostability；Heavy oil is that crude oil extracts vapour
Remaining mink cell focus after oil, diesel oil, molecular weight is big, viscosity is high；Naphthenic base distillate good can be adjusted as viscosity-controlling agent
Save the viscosity of pitch；Using this specific components and proportion, the physicochemical property of each component can be given full play to, each component is mutually assisted
Same-action makes the good high-temperature behavior of bitumen regenerant and excellent low-temperature cracking-resistance, ageing resistance and weatherability obtained
By force, it is suitable for the regenerated large-scale application of pitch.
Two, of the invention, " furfural extract oil is 16 parts, bisphenol A type epoxy resin is 12 parts, methyl propenoic acid glycidyl
Ester is 2 parts, repefral is 2 parts, ethyl alcohol is 2 parts, cycloaliphatic epoxy resin is 3 parts, used oil is 9 parts, February
Dilaurylate is 3 parts, cyclohexanone is 2 parts, epoxy aliphatic acid methyl ester is 3 parts, petroleum ether is 2 parts, epoxidized soybean oil 2
Part, heavy oil are 3 parts, naphthenic base distillate is 2 parts ", the bitumen regenerant constituted using this specific proportion can be protruded effectively
High-temperature behavior, low-temperature cracking-resistance, ageing resistance and weatherability, each characteristic relative equilibrium reach an optimum balance effect.
Three, of the invention, " a, the furfural extract oil of selection formula ratio and used oil are put into reaction kettle and are mixed and heated to 45
DEG C, it then adds the repefral of formula ratio and ethyl alcohol and is stirred to react at 80 DEG C 2.5 hours, be cooled to 25
DEG C, it adds the cyclohexanone of formula ratio and stirs 1 hour, obtain mixture；B, formula ratio is added into the mixture of step a
Heavy oil and petroleum ether are warming up to 75 DEG C, filter dehydration；Add bisphenol A type epoxy resin and the alicyclic epoxy tree of formula ratio
Rouge stirs 15 minutes；C, naphthenic base distillate and epoxidized soybean oil, the weight of naphthenic base distillate and epoxidized soybean oil are added
Than for 2:1；D, glycidyl methacrylate, dibutyl tin dilaurate and the epoxyfatty acid first of formula ratio are eventually adding
Ester insulated and stirred 15 minutes, is down to room temperature under the conditions of 110 DEG C of temperatures up to bitumen regenerant ", by largely managing
By derivation and practical application, the bitumen regenerant being prepared using this special process, high-temperature behavior is good, low-temperature cracking-resistance
Excellent, ageing resistance and weatherability are strong；And entirely reaction condition is mild, yield is high, it is easy to accomplish industrialized production.
Four, of the invention, in step a, it is the catalysis using heavy oil as raw material that the normal pressure boiling range of naphthenic base distillate, which is 550 DEG C,
Cracking slurry oil is evaporated under reduced pressure, and using the naphthenic base distillate of this specific boiling range, can maximumlly improve it
Viscosity regulating power, to meet the level demand of different pitches.
Five, of the invention, in step a, furfural extract oil is after extracting in petroleum vacuum distillate and to remove chaff by furfural
What aldehyde obtained, arene content 85%, flash-point is 220 DEG C, can enhance its dissolution and emollescence, make dissolved aging
Pitch is sufficient filling with slight void, enhances the globality and durability of pitch.
Six, of the invention, in step b, heavy oil is the heavy oil rich in colloid, and the mass content of colloid is 80%, filters dehydration
Time be 30 minutes, heavy oil have larger molecular weight, can be improved its viscosity, the toughness of pitch can be effectively improved.
Seven, of the invention, in step d, glycidyl methacrylate, dibutyl tin dilaurate and epoxyfatty acid first
The weight ratio of ester is 1:2:2, and mixing speed is controlled at 115 revs/min, and the Glycidyl methacrylate using this specific proportion is sweet
Grease, dibutyl tin dilaurate and epoxy aliphatic acid methyl ester can be fully infiltrated between polymer molecular chain, weaken pitch
Interaction force between strand, increases the locomitivity of asphaltene molecule chain, so that the low-temperature ductility of aged asphalt is improved, and
It can guarantee the balance of regeneration asphalt colloidal dispersion in pitch；Specifically by mixing speed control at 115 revs/min,
It ensures under low-temperature ductility and colloidal dispersion balance, can effectively shorten the reaction time, improve yield.
Eight, of the invention, " No. 90 pitches and No. 110 pitches are that 3:4 mixing is broken, then is sieved by step 1 by weight
Separately win partial size be 5mm mix asphalt；The mix asphalt that partial size is 5mm is put into bituminous pitch storing tank, adds powder by step 2
The weight ratio of coal ash and foamed asphalt, flyash and foamed asphalt is 3:1, is uniformly mixed；Step 3, by bitumen regenerant
With water addition bituminous pitch storing tank, the weight ratio of bitumen regenerant and mix asphalt is 0.9:1, is heated to 165 DEG C, keeps constant temperature
It 165 DEG C, stirs 75 minutes, cooling up to regeneration asphalt ", the regeneration asphalt as made from this 3 step, preparation process equipment investment
Few, processing step is terse, and finished product process time is short, stable in physicochemical property, and storage stability is good, and site operation is convenient, regeneration drip
Blueness can strongly penetrate into road surface, molding fastly, adapt to high-grade highway overhaul reconstruction large-scale promotion application, and the feature of environmental protection is good.
Specific embodiment
Embodiment 1
A kind of regenerative agent suitable for aged asphalt, is composed of the following parts by weight:
Embodiment 2
A kind of regenerative agent suitable for aged asphalt, is composed of the following parts by weight:
" furfural extract oil is 16 parts, bisphenol A type epoxy resin is 12 parts, glycidyl methacrylate is 2 parts, adjacent
Rutgers are 2 parts, ethyl alcohol is 2 parts, cycloaliphatic epoxy resin is 3 parts, used oil is 9 parts, di lauric dibutyl
Tin is 3 parts, cyclohexanone is 2 parts, epoxy aliphatic acid methyl ester is 3 parts, petroleum ether is 2 parts, epoxidized soybean oil is 2 parts, heavy oil 3
Part, naphthenic base distillate be 2 parts ", using it is this it is specific proportion constitute bitumen regenerant, can effectively protrude high-temperature behavior,
Low-temperature cracking-resistance, ageing resistance and weatherability, each characteristic relative equilibrium reach an optimum balance effect.
Following table 1 be the application regenerative agent respectively with Publication No. CN that the prior art is represented in background technique
The performance pair of the bitumen regenerant of the bituminous pavement modifying regenerant and Publication No. CN 101892069A of 104592772A
Than.
Table 1
As known from Table 1: the application bitumen regenerant is either from high-temperature behavior, low-temperature cracking-resistance or ageing resistance
With bitumen regenerant disclosed in CN 104592772A and CN 101892069A is significantly better than that in weatherability；And embodiment 2 this
The bitumen regenerant that kind specific components are constituted, high-temperature behavior, low-temperature cracking-resistance, ageing resistance and weatherability have reached one
Optimum balance and be optimal.
Embodiment 3
A kind of regenerative agent suitable for aged asphalt, is composed of the following parts by weight:
Embodiment 4
A kind of regenerative agent preparation method suitable for aged asphalt, is successively made of following processing step:
A, it chooses the furfural extract oil of formula ratio and used oil is put into reaction kettle and is mixed and heated to 45 DEG C, then add
The repefral and ethyl alcohol of formula ratio are simultaneously stirred to react 2.5 hours at 80 DEG C, are cooled to 25 DEG C, are added formula
The cyclohexanone of amount simultaneously stirs 1 hour, obtains mixture；
B, the heavy oil and petroleum ether of formula ratio are added into the mixture of step a, is warming up to 75 DEG C, filters dehydration；Again plus
Enter the bisphenol A type epoxy resin and cycloaliphatic epoxy resin of formula ratio, stirs 15 minutes；
C, naphthenic base distillate and epoxidized soybean oil are added, the weight ratio of naphthenic base distillate and epoxidized soybean oil is 2:
1；
D, glycidyl methacrylate, dibutyl tin dilaurate and the epoxyfatty acid first of formula ratio are eventually adding
Ester insulated and stirred 15 minutes, is down to room temperature under the conditions of 110 DEG C of temperatures up to bitumen regenerant.
" a, the furfural extract oil of selection formula ratio and used oil are put into reaction kettle and are mixed and heated to 45 DEG C, then add again
Enter the repefral of formula ratio and ethyl alcohol and be stirred to react at 80 DEG C 2.5 hours, is cooled to 25 DEG C, adds and match
The cyclohexanone just measured simultaneously stirs 1 hour, obtains mixture；B, the heavy oil and petroleum of formula ratio are added into the mixture of step a
Ether is warming up to 75 DEG C, filters dehydration；The bisphenol A type epoxy resin and cycloaliphatic epoxy resin of formula ratio are added, stirs 15 points
Clock；C, naphthenic base distillate and epoxidized soybean oil are added, the weight ratio of naphthenic base distillate and epoxidized soybean oil is 2:1；d,
It is eventually adding glycidyl methacrylate, dibutyl tin dilaurate and the epoxy aliphatic acid methyl ester of formula ratio, at 110 DEG C
Under the conditions of temperature, insulated and stirred 15 minutes, room temperature is down to up to bitumen regenerant ", by a large amount of theory deduction and reality
Application is trampled, the bitumen regenerant being prepared using this special process, high-temperature behavior is good, and low-temperature cracking-resistance is excellent, anti-aging
Ability and weatherability are strong；And entirely reaction condition is mild, yield is high, it is easy to accomplish industrialized production.
Embodiment 5
A kind of regenerative agent preparation method suitable for aged asphalt, is successively made of following processing step:
A, it chooses the furfural extract oil of formula ratio and used oil is put into reaction kettle and is mixed and heated to 45 DEG C, then add
The repefral and ethyl alcohol of formula ratio are simultaneously stirred to react 2.5 hours at 80 DEG C, are cooled to 25 DEG C, are added formula
The cyclohexanone of amount simultaneously stirs 1 hour, obtains mixture；
B, the heavy oil and petroleum ether of formula ratio are added into the mixture of step a, is warming up to 75 DEG C, filters dehydration；Again plus
Enter the bisphenol A type epoxy resin and cycloaliphatic epoxy resin of formula ratio, stirs 15 minutes；
C, naphthenic base distillate and epoxidized soybean oil are added, the weight ratio of naphthenic base distillate and epoxidized soybean oil is 2:
1；
D, glycidyl methacrylate, dibutyl tin dilaurate and the epoxyfatty acid first of formula ratio are eventually adding
Ester insulated and stirred 15 minutes, is down to room temperature under the conditions of 110 DEG C of temperatures up to bitumen regenerant.
In the step a, it is the cycle oil using heavy oil as raw material that the normal pressure boiling range of naphthenic base distillate, which is 550 DEG C,
What slurry was evaporated under reduced pressure.
In the step a, furfural extract oil is after extracting in petroleum vacuum distillate and to be removed furfural by furfural and obtained
, arene content 85%, flash-point is 220 DEG C.
In step a, the normal pressure boiling range of naphthenic base distillate is 550 DEG C, be using heavy oil as the catalytic cracked oil pulp of raw material into
Row vacuum distillation obtains, and using the naphthenic base distillate of this specific boiling range, can maximumlly improve its viscosity and adjust energy
Power, to meet the level demand of different pitches.
In step a, furfural extract oil be by furfural from petroleum vacuum distillate extract after and remove what furfural obtained,
Arene content is 85%, and flash-point is 220 DEG C, can enhance its dissolution and emollescence, fill out dissolved aged asphalt sufficiently
Slight void is filled, the globality and durability of pitch are enhanced.
Embodiment 6
A kind of regenerative agent preparation method suitable for aged asphalt, is successively made of following processing step:
A, it chooses the furfural extract oil of formula ratio and used oil is put into reaction kettle and is mixed and heated to 45 DEG C, then add
The repefral and ethyl alcohol of formula ratio are simultaneously stirred to react 2.5 hours at 80 DEG C, are cooled to 25 DEG C, are added formula
The cyclohexanone of amount simultaneously stirs 1 hour, obtains mixture；
B, the heavy oil and petroleum ether of formula ratio are added into the mixture of step a, is warming up to 75 DEG C, filters dehydration；Again plus
Enter the bisphenol A type epoxy resin and cycloaliphatic epoxy resin of formula ratio, stirs 15 minutes；
C, naphthenic base distillate and epoxidized soybean oil are added, the weight ratio of naphthenic base distillate and epoxidized soybean oil is 2:
1；
D, glycidyl methacrylate, dibutyl tin dilaurate and the epoxyfatty acid first of formula ratio are eventually adding
Ester insulated and stirred 15 minutes, is down to room temperature under the conditions of 110 DEG C of temperatures up to bitumen regenerant.
In the step a, it is the cycle oil using heavy oil as raw material that the normal pressure boiling range of naphthenic base distillate, which is 550 DEG C,
What slurry was evaporated under reduced pressure.
In the step a, furfural extract oil is after extracting in petroleum vacuum distillate and to be removed furfural by furfural and obtained
, arene content 85%, flash-point is 220 DEG C.
In the step b, heavy oil is the heavy oil rich in colloid, and the mass content of colloid is 80%, filters the time of dehydration
It is 30 minutes.
In the step d, the weight of glycidyl methacrylate, dibutyl tin dilaurate and epoxy aliphatic acid methyl ester
Amount is than being 1:2:2, and mixing speed control is at 115 revs/min.
In step b, heavy oil is the heavy oil rich in colloid, and the mass content of colloid is 80%, and the time for filtering dehydration is 30
Minute, heavy oil has larger molecular weight, can be improved its viscosity, can be effectively improved the toughness of pitch.
In step d, the weight ratio of glycidyl methacrylate, dibutyl tin dilaurate and epoxy aliphatic acid methyl ester
For 1:2:2, mixing speed is controlled at 115 revs/min, using the glycidyl methacrylate of this specific proportion, February
Dilaurylate and epoxy aliphatic acid methyl ester can be fully infiltrated between polymer molecular chain, weaken asphaltene molecule chain it
Between interaction force, increase the locomitivity of asphaltene molecule chain, to improve the low-temperature ductility of aged asphalt, and be used in pitch
In can guarantee the balance of regeneration asphalt colloidal dispersion；Specifically mixing speed is controlled at 115 revs/min, is ensureing low temperature
Under ductility and colloidal dispersion balance, the reaction time can be effectively shortened, improve yield.
Following table 2 be the application regenerative agent preparation method respectively with Publication No. CN that the prior art is represented in background technique
The preparation method of the bituminous pavement modifying regenerant of 104592772A and the bitumen regenerant of Publication No. CN 101892069A
Preparation method comparison.
Table 2
As known from Table 2: the preparation method of the application bitumen regenerant is either from reaction condition, yield, or industrialization
From the point of view of production, it is superior to the bitumen regenerant preparation method of CN 104592772A and CN 101892069A；And embodiment 6 is this
The preparation method of special process has reached optimum efficiency from reaction condition, yield and industrialized production.
Embodiment 7
A kind of preparation method of regeneration asphalt, is successively made of following processing step:
No. 90 pitches and No. 110 pitches are that 3:4 mixing is broken, then carries out screening acquisition partial size and be by step 1 by weight
The mix asphalt of 5mm；
The mix asphalt that partial size is 5mm is put into bituminous pitch storing tank, adds flyash and foamed asphalt, fine coal by step 2
The weight ratio of ash and foamed asphalt is 3:1, is uniformly mixed；
Step 3, by bitumen regenerant and water addition bituminous pitch storing tank, the weight ratio of bitumen regenerant and mix asphalt is
0.9:1 is heated to 165 DEG C, is kept for 165 DEG C of constant temperature, stirs 75 minutes, cooling up to regeneration asphalt.
" No. 90 pitches and No. 110 pitches are that 3:4 mixing is broken, then carries out screening and obtain partial size by step 1 by weight
For the mix asphalt of 5mm；The mix asphalt that partial size is 5mm is put into bituminous pitch storing tank, adds flyash and foam by step 2
The weight ratio of pitch, flyash and foamed asphalt is 3:1, is uniformly mixed；Drip is added in bitumen regenerant and water by step 3
The weight ratio of green holding vessel, bitumen regenerant and mix asphalt is 0.9:1, is heated to 165 DEG C, is kept for 165 DEG C of constant temperature, stirring 75
Minute, it is cooling up to regeneration asphalt ", the regeneration asphalt as made from this 3 step, preparation process equipment investment is few, processing step letter
Practice, finished product process time is short, stable in physicochemical property, and storage stability is good, and site operation is convenient, and regeneration asphalt can strongly penetrate into road
Face, molding are fast, adapt to high-grade highway overhaul reconstruction large-scale promotion application, and the feature of environmental protection is good.
Claims (8)
1. a kind of regenerative agent suitable for aged asphalt, which is characterized in that be composed of the following parts by weight:
2. a kind of regenerative agent suitable for aged asphalt according to claim 1, it is characterised in that: the furfural extract oil
For 16 parts, bisphenol A type epoxy resin be 12 parts, glycidyl methacrylate is 2 parts, repefral is 2 parts,
Ethyl alcohol is 2 parts, cycloaliphatic epoxy resin is 3 parts, used oil is 9 parts, dibutyl tin dilaurate is 3 parts, cyclohexanone is 2 parts,
Epoxy aliphatic acid methyl ester is 3 parts, petroleum ether is 2 parts, epoxidized soybean oil is 2 parts, heavy oil is 3 parts, naphthenic base distillate is 2 parts.
3. a kind of regenerative agent preparation method suitable for aged asphalt according to claim 1, which is characterized in that successively by
Following processing step composition:
A, it chooses the furfural extract oil of formula ratio and used oil is put into reaction kettle and is mixed and heated to 45 DEG C, then add formula
The repefral and ethyl alcohol of amount are simultaneously stirred to react 2.5 hours at 80 DEG C, are cooled to 25 DEG C, are added formula ratio
Cyclohexanone simultaneously stirs 1 hour, obtains mixture；
B, the heavy oil and petroleum ether of formula ratio are added into the mixture of step a, is warming up to 75 DEG C, filters dehydration；It adds and matches
The bisphenol A type epoxy resin and cycloaliphatic epoxy resin just measured stir 15 minutes；
C, naphthenic base distillate and epoxidized soybean oil are added, the weight ratio of naphthenic base distillate and epoxidized soybean oil is 2:1；
D, it is eventually adding glycidyl methacrylate, dibutyl tin dilaurate and the epoxy aliphatic acid methyl ester of formula ratio,
Under the conditions of 110 DEG C of temperatures, insulated and stirred 15 minutes, room temperature is down to up to bitumen regenerant.
4. a kind of regenerative agent preparation method suitable for aged asphalt according to claim 3, it is characterised in that: the step
In rapid a, the normal pressure boiling range of naphthenic base distillate, which is 550 DEG C, to be evaporated under reduced pressure by the catalytic cracked oil pulp of raw material of heavy oil
It obtains.
5. a kind of regenerative agent preparation method suitable for aged asphalt according to claim 3, it is characterised in that: the step
In rapid a, furfural extract oil is after extracting in petroleum vacuum distillate and to remove what furfural obtained by furfural, and arene content is
85%, flash-point is 220 DEG C.
6. a kind of regenerative agent preparation method suitable for aged asphalt according to claim 3, it is characterised in that: the step
In rapid b, heavy oil is the heavy oil rich in colloid, and the mass content of colloid is 80%, and the time for filtering dehydration is 30 minutes.
7. a kind of regenerative agent preparation method suitable for aged asphalt according to claim 3, it is characterised in that: the step
In rapid d, the weight ratio of glycidyl methacrylate, dibutyl tin dilaurate and epoxy aliphatic acid methyl ester is 1:2:2, is stirred
Speed control is mixed at 115 revs/min.
8. a kind of preparation method of regeneration asphalt according to claim 1, which is characterized in that successively by following processing step
Composition:
No. 90 pitches and No. 110 pitches are that 3:4 mixing is broken, then carries out screening to obtain partial size being 5mm by step 1 by weight
Mix asphalt；
The mix asphalt that partial size is 5mm is put into bituminous pitch storing tank, adds flyash and foamed asphalt by step 2, flyash and
The weight ratio of foamed asphalt is 3:1, is uniformly mixed；
Step 3, by bitumen regenerant and water addition bituminous pitch storing tank, the weight ratio of bitumen regenerant and mix asphalt is 0.9:1,
165 DEG C are heated to, is kept for 165 DEG C of constant temperature, is stirred 75 minutes, it is cooling up to regeneration asphalt.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111454577A (en) * | 2020-06-02 | 2020-07-28 | 四川正洁科技有限责任公司 | Hot asphalt recycling agent and preparation method thereof |
| CN112521759A (en) * | 2020-11-17 | 2021-03-19 | 山东京博石油化工有限公司 | Special composite plasticizer for waterproof coiled material, and preparation method and application thereof |
| CN113337134A (en) * | 2021-05-25 | 2021-09-03 | 山东交通学院 | Modified asphalt compatilizer and preparation method thereof |
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| CN107629472A (en) * | 2017-10-10 | 2018-01-26 | 周荣 | A kind of osmosis type bitumen regenerant and preparation method thereof |
| CN107828222A (en) * | 2017-11-13 | 2018-03-23 | 甘肃畅陇公路养护技术研究院有限公司 | A kind of bitumen regenerant and its preparation method and application |
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- 2018-07-27 CN CN201810844696.4A patent/CN109021599A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107629472A (en) * | 2017-10-10 | 2018-01-26 | 周荣 | A kind of osmosis type bitumen regenerant and preparation method thereof |
| CN107828222A (en) * | 2017-11-13 | 2018-03-23 | 甘肃畅陇公路养护技术研究院有限公司 | A kind of bitumen regenerant and its preparation method and application |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111454577A (en) * | 2020-06-02 | 2020-07-28 | 四川正洁科技有限责任公司 | Hot asphalt recycling agent and preparation method thereof |
| CN112521759A (en) * | 2020-11-17 | 2021-03-19 | 山东京博石油化工有限公司 | Special composite plasticizer for waterproof coiled material, and preparation method and application thereof |
| CN113337134A (en) * | 2021-05-25 | 2021-09-03 | 山东交通学院 | Modified asphalt compatilizer and preparation method thereof |
| CN113337134B (en) * | 2021-05-25 | 2022-04-01 | 山东交通学院 | Modified asphalt compatilizer and preparation method thereof |
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