CN110423475A - A kind of preparation method of warm mix low pollution regeneration asphalt - Google Patents
A kind of preparation method of warm mix low pollution regeneration asphalt Download PDFInfo
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- CN110423475A CN110423475A CN201910672766.7A CN201910672766A CN110423475A CN 110423475 A CN110423475 A CN 110423475A CN 201910672766 A CN201910672766 A CN 201910672766A CN 110423475 A CN110423475 A CN 110423475A
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- 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
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- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
- C08L2207/22—Recycled asphalt
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The invention discloses a kind of preparation methods of warm mix low pollution regeneration asphalt, including following raw material and its weight fraction: old asphalt mixture is 30-40 mass parts；New pitch is 25-35 mass parts；5-7 mass parts of regenerative agent；Thinner is 2-4 mass parts；Plasticiser is 3-6 mass parts；Antiaging agent is 1-2 mass parts；Warm-mixing agent is 5-9 mass parts；Solubilizer is 3-7 mass parts；Complexed surfactant is 2-4 mass parts and composite modifier is 7-11 mass parts.The present invention can effectively reduce mix temperature, avoid the secondary aging of Bituminous concrete surface film, energy-saving and emission-reduction are accomplished simultaneously, when Interface composites modifying agent makes an addition in old asphalt mixture, the Bituminous concrete surface being stripped out rapidly is redistributed in new and old surface of aggregate, wherein specific functional group reacts with the sulfoxide group in Bituminous concrete surface with carbonyl, so that the pavement performance of Bituminous concrete surface film is repaired, realizes recycling for Bituminous concrete surface.
Description
Technical field
The present invention relates to pitch preparation technical field, specially a kind of preparation method of warm mix low pollution regeneration asphalt.
Background technique
China Higher grade highway is mostly based on bituminous pavement, and according to 15 years or 20 years design lifes, the country was big
Part bituminous pavement comes into maintenance peak period, in repair it is frequent with overhaul maintenance.
Currently, there is also the places of some shortcomings for existing warm mix regeneration asphalt, such as；Existing warm mix regeneration asphalt
Mix temperature in preparation process is relatively high, and Bituminous concrete surface film is easy to appear secondary aging, and the degree of pollution is relatively high, and existing
Warm mix regeneration asphalt using when the pavement performance of Bituminous concrete surface film cannot be repaired, reduce old gather materials and bituminous cements
Wrap effect.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation methods of warm mix low pollution regeneration asphalt, solve in background technique
The problem of proposed.
To achieve the above object, the invention provides the following technical scheme: a kind of preparation side of warm mix low pollution regeneration asphalt
Method, including following raw material and its weight fraction: old asphalt mixture is 30-40 mass parts；New pitch is 25-35 mass parts；
5-7 mass parts of regenerative agent；Thinner is 2-4 mass parts；Plasticiser is 3-6 mass parts；Antiaging agent is 1-2 mass parts；
Warm-mixing agent is 5-9 mass parts；Solubilizer is 3-7 mass parts；Complexed surfactant is 2-4 mass parts and composite modifier
For 7-11 mass parts.
As a kind of preferred embodiment of the invention, the preparation method of the warm mix low pollution regeneration asphalt, including
Following raw material and its weight fraction: old asphalt mixture is 30 mass parts；New pitch is 25 mass parts；5 mass parts of regenerative agent；Drop
Stick is 2 mass parts；Plasticiser is 3 mass parts；Antiaging agent is 1 mass parts；Warm-mixing agent is 5 mass parts；Solubilizer is 3 mass
Part and complexed surfactant are 2 mass parts.
As a kind of preferred embodiment of the invention, the preparation method of the warm mix low pollution regeneration asphalt, including
Following raw material and its weight fraction: old asphalt mixture is 30 mass parts；New pitch is 25 mass parts；5 mass parts of regenerative agent；Drop
Stick is 2 mass parts；Plasticiser is 3 mass parts；Antiaging agent is 1 mass parts；Warm-mixing agent is 5 mass parts；Solubilizer is 3 mass
Part；Complexed surfactant is 2 mass parts and composite modifier is 7 mass parts.
As a kind of preferred embodiment of the invention, the preparation method of the warm mix low pollution regeneration asphalt, preparation
Steps are as follows:
A. above-mentioned raw materials are weighed according to parts by weight；
B. after the completion of step a, then composite modifier is added into old asphalt mixture and is stripped the determining old collection of test
The grading curve of material and the content of Bituminous concrete surface；
C. after the completion of step b, simple according to old asphalt mixture is matched and prepared warm-mixed recycled asphalt mixture
Target level match, the weight ratio of warm mix regeneration asphalt and warm-mixed recycled asphalt mixture is determined, to obtain in warm-mixed asphalt new
The proportion of pitch and compound warm mix regenerative agent；
D. after the completion of step c, melting shearing is carried out after regenerative agent, thinner, plasticiser and antiaging agent are mixed, is obtained
To composite regenerant；
E. after the completion of step d, after warm-mixing agent, solubilizer, complexed surfactant and composite modifier are mixed, then into
Row stirring, obtains compound warm-mixing agent；
F. after the completion of step e, then composite regenerant and compound warm-mixing agent be put into mixer and mixed, mixed
When temperature be 180 DEG C~195 DEG C, incorporation time be 7min~9min, obtain compound warm mix regenerative agent；
G. after the completion of step f, then compound warm mix regenerative agent and composite modifier be added separately to heat in new pitch
Stirring, for heating temperature to 125 DEG C~135 DEG C, mixing time is 45s~65s, and warm mix regeneration asphalt is made.
Temperature when melting shearing as a kind of preferred embodiment of the invention, in the step d is 175 DEG C~185
DEG C, the time of shearing is 5min~8min.
As a kind of preferred embodiment of the invention, temperature when stirring in the step e is 96 DEG C~115 DEG C, is stirred
The time mixed is 5min~10min.
As a kind of preferred embodiment of the invention, the warm-mixing agent is by octadecyl acrylate and styrene-Malaysia
Acid anhydride copolymer is uniformly mixed at room temperature according to the mass ratio of 2:1 and is made.
As a kind of preferred embodiment of the invention, the regenerative agent is aromatic naphtha, and the thinner is tall oil.
As a kind of preferred embodiment of the invention, the antiaging agent is N, N '-DTPD di tolyl p phenylenediamine and anti-
One or both of old agent RD.
As a kind of preferred embodiment of the invention, the plasticiser is one in epoxidized soybean oil and rilanit special
Kind or two kinds.
Compared with prior art, beneficial effects of the present invention are as follows:
The present invention can effectively reduce mix temperature by the increase of composite modifier, avoid the secondary of Bituminous concrete surface film
Aging, while having accomplished energy-saving and emission-reduction, when Interface composites modifying agent makes an addition in old asphalt mixture, it is stripped out rapidly
Bituminous concrete surface is redistributed in new and old surface of aggregate, wherein the sulfoxide group and carbonyl in specific functional group and Bituminous concrete surface occur instead
It answers, the pavement performance of Bituminous concrete surface film is enable to repair, realize recycling for Bituminous concrete surface.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is a kind of flow chart of the preparation method of warm mix low pollution regeneration asphalt of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig. 1, the present invention provides a kind of technical solution: a kind of preparation method of warm mix low pollution regeneration asphalt, packet
Include following raw material and its weight fraction: old asphalt mixture is 30-40 mass parts；New pitch is 25-35 mass parts；Regenerative agent
5-7 mass parts；Thinner is 2-4 mass parts；Plasticiser is 3-6 mass parts；Antiaging agent is 1-2 mass parts；Warm-mixing agent
For 5-9 mass parts；Solubilizer is 3-7 mass parts；Complexed surfactant is 2-4 mass parts and composite modifier is 7-11
Mass parts.
Further, the preparation method of the warm mix low pollution regeneration asphalt, including following raw material and its weight fraction: old
Asphalt is 30 mass parts；New pitch is 25 mass parts；5 mass parts of regenerative agent；Thinner is 2 mass parts；Plasticiser is 3
Mass parts；Antiaging agent is 1 mass parts；Warm-mixing agent is 5 mass parts；Solubilizer is 3 mass parts and complexed surfactant is 2 matter
Measure part.
Further, the preparation method of the warm mix low pollution regeneration asphalt, including following raw material and its weight fraction: old
Asphalt is 30 mass parts；New pitch is 25 mass parts；5 mass parts of regenerative agent；Thinner is 2 mass parts；Plasticiser is 3
Mass parts；Antiaging agent is 1 mass parts；Warm-mixing agent is 5 mass parts；Solubilizer is 3 mass parts；Complexed surfactant is 2 matter
It measures part and composite modifier is 7 mass parts.
Further, the preparation method of the warm mix low pollution regeneration asphalt, preparation step are as follows:
A. above-mentioned raw materials are weighed according to parts by weight；
B. after the completion of step a, then composite modifier is added into old asphalt mixture and is stripped the determining old collection of test
The grading curve of material and the content of Bituminous concrete surface；
C. after the completion of step b, simple according to old asphalt mixture is matched and prepared warm-mixed recycled asphalt mixture
Target level match, the weight ratio of warm mix regeneration asphalt and warm-mixed recycled asphalt mixture is determined, to obtain in warm-mixed asphalt new
The proportion of pitch and compound warm mix regenerative agent；
D. after the completion of step c, melting shearing is carried out after regenerative agent, thinner, plasticiser and antiaging agent are mixed, is obtained
To composite regenerant；
E. after the completion of step d, after warm-mixing agent, solubilizer, complexed surfactant and composite modifier are mixed, then into
Row stirring, obtains compound warm-mixing agent；
F. after the completion of step e, then composite regenerant and compound warm-mixing agent be put into mixer and mixed, mixed
When temperature be 180 DEG C~195 DEG C, incorporation time be 7min~9min, obtain compound warm mix regenerative agent；
G. after the completion of step f, then compound warm mix regenerative agent and composite modifier be added separately to heat in new pitch
Stirring, for heating temperature to 125 DEG C~135 DEG C, mixing time is 45s~65s, and warm mix regeneration asphalt is made.
Further, temperature when melting shearing in the step d is 175 DEG C~185 DEG C, time of shearing be 5min~
8min。
Further, temperature when stirring in the step e is 96 DEG C~115 DEG C, and the time of stirring is 5min~10min.
Further, the warm-mixing agent is the matter by octadecyl acrylate and styrene-copolymer-maleic anhydride according to 2:1
Amount is made than being uniformly mixed at room temperature.
Further, the regenerative agent is aromatic naphtha, and the thinner is tall oil.
Further, the antiaging agent is N, one or both of N '-DTPD di tolyl p phenylenediamine and anti-aging agent RD.
Further, the plasticiser is one or both of epoxidized soybean oil and rilanit special.
Embodiment one
The preparation method of the warm mix low pollution regeneration asphalt, including following raw material and its weight fraction: Bituminous concrete surface is mixed
Closing material is 30 mass parts；New pitch is 25 mass parts；5 mass parts of regenerative agent；Thinner is 2 mass parts；Plasticiser is 3 mass
Part；Antiaging agent is 1 mass parts；Warm-mixing agent is 5 mass parts；Solubilizer is 3 mass parts and complexed surfactant is 2 mass
Part.
Preparation step is as follows:
A. above-mentioned raw materials are weighed according to parts by weight；
B. after the completion of step a, then composite modifier is added into old asphalt mixture and is stripped the determining old collection of test
The grading curve of material and the content of Bituminous concrete surface；
C. after the completion of step b, simple according to old asphalt mixture is matched and prepared warm-mixed recycled asphalt mixture
Target level match, the weight ratio of warm mix regeneration asphalt and warm-mixed recycled asphalt mixture is determined, to obtain in warm-mixed asphalt new
The proportion of pitch and compound warm mix regenerative agent；
D. after the completion of step c, melting shearing is carried out after regenerative agent, thinner, plasticiser and antiaging agent are mixed, is obtained
To composite regenerant；
E. after the completion of step d, after warm-mixing agent, solubilizer, complexed surfactant and composite modifier are mixed, then into
Row stirring, obtains compound warm-mixing agent；
F. after the completion of step e, then composite regenerant and compound warm-mixing agent be put into mixer and mixed, mixed
When temperature be 180 DEG C~195 DEG C, incorporation time be 7min~9min, obtain compound warm mix regenerative agent；
G. after the completion of step f, then compound warm mix regenerative agent and composite modifier be added separately to heat in new pitch
Stirring, for heating temperature to 125 DEG C~135 DEG C, mixing time is 45s~65s, and warm mix regeneration asphalt is made.
Embodiment two
The preparation method of the warm mix low pollution regeneration asphalt, including following raw material and its weight fraction: Bituminous concrete surface is mixed
Closing material is 30 mass parts；New pitch is 25 mass parts；5 mass parts of regenerative agent；Thinner is 2 mass parts；Plasticiser is 3 mass
Part；Antiaging agent is 1 mass parts；Warm-mixing agent is 5 mass parts；Solubilizer is 3 mass parts；Complexed surfactant is 2 mass parts
It is 7 mass parts with composite modifier.
Preparation step is as follows:
A. above-mentioned raw materials are weighed according to parts by weight；
B. after the completion of step a, then composite modifier is added into old asphalt mixture and is stripped the determining old collection of test
The grading curve of material and the content of Bituminous concrete surface；
C. after the completion of step b, simple according to old asphalt mixture is matched and prepared warm-mixed recycled asphalt mixture
Target level match, the weight ratio of warm mix regeneration asphalt and warm-mixed recycled asphalt mixture is determined, to obtain in warm-mixed asphalt new
The proportion of pitch and compound warm mix regenerative agent；
D. after the completion of step c, melting shearing is carried out after regenerative agent, thinner, plasticiser and antiaging agent are mixed, is obtained
To composite regenerant；
E. after the completion of step d, after warm-mixing agent, solubilizer, complexed surfactant and composite modifier are mixed, then into
Row stirring, obtains compound warm-mixing agent；
F. after the completion of step e, then composite regenerant and compound warm-mixing agent be put into mixer and mixed, mixed
When temperature be 180 DEG C~195 DEG C, incorporation time be 7min~9min, obtain compound warm mix regenerative agent；
G. after the completion of step f, then compound warm mix regenerative agent and composite modifier be added separately to heat in new pitch
Stirring, for heating temperature to 125 DEG C~135 DEG C, mixing time is 45s~65s, and warm mix regeneration asphalt is made.
It is as follows that traditional asphalt prepares data parameters table 1:
| Test item | Pollution level | Preparation condition | Repair ability | Stability |
| Parameter index | It is high | It is high | Difference | It is weak |
It is as follows that one pitch of embodiment prepares data parameters table 2:
| Test item | Pollution level | Preparation condition | Repair ability | Stability |
| Parameter index | Generally | It is higher | Well | Generally |
It is as follows that two pitch of embodiment prepares data parameters table 3:
| Test item | Pollution level | Preparation condition | Repair ability | Stability |
| Parameter index | It is low | It is low | By force | By force |
It to sum up states, is obtained referring to the data comparison of table 1, table 2 and table 3, by the increase of composite modifier, can effectively be dropped
Low mix temperature, avoids the secondary aging of Bituminous concrete surface film, while having accomplished energy-saving and emission-reduction, when Interface composites modifying agent makes an addition to
When in old asphalt mixture, the Bituminous concrete surface being stripped out rapidly is redistributed in new and old surface of aggregate, wherein specific functional group
It reacts with the sulfoxide group in Bituminous concrete surface with carbonyl, so that the pavement performance of Bituminous concrete surface film is repaired, realize Bituminous concrete surface
It recycles.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention, for this field skill
For art personnel, it is clear that invention is not limited to the details of the above exemplary embodiments, and without departing substantially from spirit of the invention or
In the case where essential characteristic, the present invention can be realized in other specific forms.Therefore, in all respects, should all incite somebody to action
Embodiment regards exemplary as, and is non-limiting, the scope of the present invention by appended claims rather than on state
Bright restriction, it is intended that including all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention
It is interior.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of preparation method of warm mix low pollution regeneration asphalt, it is characterised in that: including following raw material and its weight fraction: old
Asphalt is 30-40 mass parts；New pitch is 25-35 mass parts；5-7 mass parts of regenerative agent；Thinner is 2-4 matter
Measure part；Plasticiser is 3-6 mass parts；Antiaging agent is 1-2 mass parts；Warm-mixing agent is 5-9 mass parts；Solubilizer is 3-7
Mass parts；Complexed surfactant is 2-4 mass parts and composite modifier is 7-11 mass parts.
2. a kind of preparation method of warm mix low pollution regeneration asphalt according to claim 1, it is characterised in that: including following
Raw material and its weight fraction: old asphalt mixture is 30 mass parts；New pitch is 25 mass parts；5 mass parts of regenerative agent；Thinner
For 2 mass parts；Plasticiser is 3 mass parts；Antiaging agent is 1 mass parts；Warm-mixing agent is 5 mass parts；Solubilizer be 3 mass parts and
Complexed surfactant is 2 mass parts.
3. a kind of preparation method of warm mix low pollution regeneration asphalt according to claim 1, it is characterised in that: including following
Raw material and its weight fraction: old asphalt mixture is 30 mass parts；New pitch is 25 mass parts；5 mass parts of regenerative agent；Thinner
For 2 mass parts；Plasticiser is 3 mass parts；Antiaging agent is 1 mass parts；Warm-mixing agent is 5 mass parts；Solubilizer is 3 mass parts；
Complexed surfactant is 2 mass parts and composite modifier is 7 mass parts.
4. a kind of preparation method of warm mix low pollution regeneration asphalt according to claim 1, it is characterised in that: preparation step
It is as follows:
A. above-mentioned raw materials are weighed according to parts by weight；
B. after the completion of step a, then into old asphalt mixture composite modifier is added and is stripped test and determine old gather materials
The content of grading curve and Bituminous concrete surface；
C. after the completion of step b, according to the simple mesh with prepared warm-mixed recycled asphalt mixture of old asphalt mixture
Gradation is marked, the weight ratio of warm mix regeneration asphalt and warm-mixed recycled asphalt mixture is determined, to obtain new pitch in warm-mixed asphalt
With the proportion of compound warm mix regenerative agent；
D. after the completion of step c, melting shearing is carried out after regenerative agent, thinner, plasticiser and antiaging agent are mixed, is answered
Close regenerative agent；
E. it after the completion of step d, after warm-mixing agent, solubilizer, complexed surfactant and composite modifier are mixed, then is stirred
It mixes, obtains compound warm-mixing agent；
F. after the completion of step e, then composite regenerant and compound warm-mixing agent be put into mixer and mixed, when mixing
Temperature is 180 DEG C~195 DEG C, and incorporation time is 7min~9min, obtains compound warm mix regenerative agent；
G. after the completion of step f, then compound warm mix regenerative agent and composite modifier be added separately to heating stirring in new pitch,
For heating temperature to 125 DEG C~135 DEG C, mixing time is 45s~65s, and warm mix regeneration asphalt is made.
5. a kind of preparation method of warm mix low pollution regeneration asphalt according to claim 4, it is characterised in that: the step
Temperature when melting shearing in d is 175 DEG C~185 DEG C, and the time of shearing is 5min~8min.
6. a kind of preparation method of warm mix low pollution regeneration asphalt according to claim 4, it is characterised in that: the step
Temperature when stirring in e is 96 DEG C~115 DEG C, and the time of stirring is 5min~10min.
7. a kind of preparation method of warm mix low pollution regeneration asphalt according to claim 1, it is characterised in that: the warm mix
Agent is to be uniformly mixed to be made at room temperature according to the mass ratio of 2:1 by octadecyl acrylate and styrene-copolymer-maleic anhydride.
8. a kind of preparation method of warm mix low pollution regeneration asphalt according to claim 1, it is characterised in that: the regeneration
Agent is aromatic naphtha, and the thinner is tall oil.
9. a kind of preparation method of warm mix low pollution regeneration asphalt according to claim 1, it is characterised in that: described anti-old
Agent is N, one or both of N '-DTPD di tolyl p phenylenediamine and anti-aging agent RD.
10. a kind of preparation method of warm mix low pollution regeneration asphalt according to claim 1, it is characterised in that: the modeling
Agent is one or both of epoxidized soybean oil and rilanit special.
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| CN201910672766.7A CN110423475A (en) | 2019-07-24 | 2019-07-24 | A kind of preparation method of warm mix low pollution regeneration asphalt |
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| CN201910672766.7A CN110423475A (en) | 2019-07-24 | 2019-07-24 | A kind of preparation method of warm mix low pollution regeneration asphalt |
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| CN115418109A (en) * | 2022-10-12 | 2022-12-02 | 广西兴尚市政工程有限公司 | Regenerated asphalt pavement and preparation method thereof |
| CN115637052A (en) * | 2022-08-16 | 2023-01-24 | 招商局重庆交通科研设计院有限公司 | Warm-mixed regenerant for in-situ heat regeneration and preparation method thereof |
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Application publication date: 20191108 |