CN106380873A - New reclaimed asphalt and preparation method thereof - Google Patents
New reclaimed asphalt and preparation method thereof Download PDFInfo
- Publication number
- CN106380873A CN106380873A CN201610754810.5A CN201610754810A CN106380873A CN 106380873 A CN106380873 A CN 106380873A CN 201610754810 A CN201610754810 A CN 201610754810A CN 106380873 A CN106380873 A CN 106380873A
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- China
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- parts
- asphalt
- new
- waste
- pitch
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Classifications
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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
- 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
- C08L2205/02—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
Abstract
New reclaimed asphalt and a preparation method thereof relate to the field of a road material. The new reclaimed asphalt is prepared from the following raw materials, by weight part, 30-50 parts of new asphalt, 20-40 parts of waste asphalt, 0.1-0.5 part of a modifier, 10-20 parts of an anti-rut agent, 3-5 parts of a plasticizer and 0.5-1 part of a stabilizing agent. Technical parameters of an original road surface are achieved, and the use ratio of waste asphalt is greatly increased. The use ratio of new asphalt is truly reduced, and the recovery rate of waste asphalt is truly increased. The resources are saved, and the environment is protected.
Description
Technical field
The present invention relates to ground surface material field, more particularly, to a kind of based on waste asphalt material recycle again new again
Raw pitch and preparation method thereof.
Background technology
Highway in China builds especially expressway construction after the development of more than 10 years, and mileage open to traffic has reached km more than 30,000,
According to the pitch expressway surface projected life of 15 years, highways have been enter into the middle and later periods in a large number at present.The whole nation has more than 10% every year
Bituminous paving needs to overhaul, and the discarded object amount of annual Bituminous concrete surface layer reaches 3,000,000 tons, the huge wasting of resources and environment is caused
Severe contamination, it has also become highway industry must in the face of and problem demanding prompt solution.In addition, China's oil resource-constrained, bituminous paving
Regeneration be related to the sustainable development of highway in China cause.
Traditional regenerating waste asphalt reclaims has problems with：
1) in removal process, high to the quality requirements of waste asphalt, waste asphalt accounting is little, is not really achieved waste and old
The purpose that bitumen recovery utilizes.
2) non-deformability is had using the road surface of the waste asphalt recycling poor, ductility and Resisting fractre ability are not
The level on new pitch road surface can be reached.
3) using the waste asphalt recycling in process of deployment, higher to temperature requirement, typically lay in summer, the winter
Season is relatively low because of temperature, and laying quality lowers, thus affecting project progress, increases job costs.
In sum, the present invention is intended to provide a kind of new regenerating waste asphalt proportioning, improve the utilization of waste asphalt
Rate and the quality of regeneration asphalt.
Content of the invention
For solving problem above, a kind of New Regenerated pitch that the present invention provides and preparation method thereof, including regeneration asphalt,
It is to be formulated by the raw material of following parts by weight：30～50 parts of new pitch, 20～40 parts of waste asphalt, modifying agent 0.1～
0.5 part, 10～20 parts of anti-rut agent, 3～5 parts of plasticizer, 0.5～1 part of composition of stabilizer；
Described modifying agent is binder resin, and described binder resin is Petropols；I.e. a kind of by petroleum cracking institute by-product
C5, C9 fraction, a kind of thermoplastic resin through technique productions such as pre-treatment, polymerization, distillations, is molecular weight between 300-3000's
Oligomer；
Described Rut resistance and for six hydration alchlors, waste rubber powder and water, described six hydration alchlors, waste rubber powder
And the weight of water ratio is for 1: 3: 96, described waste rubber powder is the discarded rubber powder of activation, and its fineness is 40 mesh.
Described plasticizer is dibutyl phthalate, dioctyl phthalate or a combination thereof.
Described stabilizer is peroxide diisopropylbenzene (DIPB).
Present invention additionally comprises a kind of method of New Regenerated pitch providing and preparation method thereof, including step：
First six are hydrated to stir after alchlor, waste rubber powder and water proportion and make Rut resistance
Agent；Again new pitch and waste asphalt are heated to 130-140 degree, are proportionally added in mixer, mixer rotating speed is adjusted
3000-4000 rev/min processed, after stirring 30-50 minute, modifying agent, plasticizer is added to continue stirring 30 minutes；Mixer is turned
Speed improves to 4000-5000 rev/min, adds anti-rut agent, stabilizer, keeps this rotating speed stirring 30-50 minute, stirring knot
Bundle.Finally, mixture is placed in baking oven, swelling growth 60 minutes at a temperature of 150 degree, you can obtain being applied to road surface again
Raw pitch.
Beneficial effects of the present invention：1st, adopt the road surface of asphalt paving of the present invention, compared to former waste asphalt pavement
Non-deformability increases, and bituminous paving ductility increases, and cracking resistance cutting capacity increases, and substantially prolongs pavement life.2nd, exist
In conventional road surfacing work, temperature influence is larger, constructs generally in the case that summer temp is higher, and winter lays road
Face does not often reach requirement, and road surface is fragile, and pitch of the present invention temperature influence in process of deployment is little, improves operating efficiency.
3rd, great advantage of the present invention is to considerably increase the utilization rate of waste asphalt while realizing original pavement technique parameter,
Truly reduce the usage amount of new pitch, increased the rate of recovery of waste asphalt, saved resource, protect environment.
Specific embodiment
With reference to specific embodiment, the present invention is described in further details.
Prepare anti-rut agent first：By proportioning by six trichloride hydrate aluminium and drinking water mix and blend, then it is slowly added into useless
Old rubber powder, obtains anti-rut agent after mixing.
Embodiment 1
30 parts of new pitch and 20 parts of waste asphalts are heated to 130 degree, are added in mixer, by mixer rotating-speed modulation
3000 revs/min, after stirring 30 minutes, 0.1 part of modifying agent, 3 parts of plasticizer is added to continue stirring 30 minutes；By mixer
Rotating speed improves to 4000 revs/min, adds 10 parts of anti-rut agents, 0.5 part of stabilizer, keeps this rotating speed to stir 30 minutes, stirring
Terminate.Finally, mixture is placed in baking oven, swelling growth 60 minutes at a temperature of 150 degree, you can obtain being applied to road surface
Regeneration asphalt.
Embodiment 2
40 parts of new pitch and 30 parts of waste asphalts are heated to 135 degree, are added in mixer, by mixer rotating-speed modulation
3500 revs/min, after stirring 40 minutes, 0.3 part of modifying agent, 4 parts of plasticizer is added to continue stirring 30 minutes；By mixer
Rotating speed improves to 4500 revs/min, the anti-rut agent of 15 parts of addition, 0.7 part of stabilizer, keeps this rotating speed to stir 40 minutes, stirs
Mix end.Finally, mixture is placed in baking oven, swelling growth 60 minutes at a temperature of 150 degree, you can obtain being applied to road surface
Regeneration asphalt.
Embodiment 3
50 parts of new pitch and 40 parts of waste asphalts are heated to 140 degree, are added in mixer, by mixer rotating-speed modulation
4000 revs/min, after stirring 50 minutes, 0.5 part of modifying agent, 5 parts of plasticizer is added to continue stirring 30 minutes；By mixer
Rotating speed improves to 5000 revs/min, the anti-rut agent of 20 parts of addition, 1 part of stabilizer, keeps this rotating speed to stir 50 minutes, stirring
Terminate.Finally, mixture is placed in baking oven, swelling growth 60 minutes at a temperature of 150 degree, you can obtain being applied to road surface
Regeneration asphalt.
With the cryogenic property of BBR experimental examination regeneration asphalt, BBR result of the test table
As can be seen from the above table, the stiffness of regeneration asphalt diminishes, and M value increases.Regeneration asphalt anti-low-temperature cracking denaturation is described
Can improve.
Test the ductility of regeneration asphalt using bitumen ductility instrument.
As can be seen from the above table, the extension value of regeneration asphalt becomes big, illustrates that regeneration asphalt ductility improves.
The above, be only presently preferred embodiments of the present invention, not the present invention is done with any pro forma restriction, appoints
What any is simply repaiied according to what the technical spirit of the present invention made to above example without departing from technical solution of the present invention content
Change, equivalent variations and modification, all still fall within the range of technical solution of the present invention.
Claims (5)
1. a kind of New Regenerated pitch it is characterised in that：It is to be formulated by the raw material of following parts by weight：New pitch 30～
50 parts, 20～40 parts of waste asphalt, 0.1～0.5 part of modifying agent, 10～20 parts of anti-rut agent, 3～5 parts of plasticizer, stabilizer
0.5～1 part of composition.
2. New Regenerated pitch according to claim 1 it is characterised in that：Described modifying agent is binder resin, described viscous
Resin is Petropols, i.e. a kind of C5, C9 fraction by petroleum cracking institute by-product, through the life of the techniques such as pre-treatment, polymerization, distillation
A kind of thermoplastic resin producing, is the oligomer between 300-3000 for the molecular weight.
3. New Regenerated pitch according to claim 1 it is characterised in that：Described Rut resistance and for six hydration three oxidation
Aluminium, waste rubber powder and water, described six hydration alchlors, the weight ratio of waste rubber powder and water for 1: 3: 96, described waste rubber powder
For the discarded rubber powder of activation, its fineness is 40 mesh.
4. New Regenerated pitch according to claim 1 it is characterised in that：Described plasticizer is phthalic acid two fourth
Ester, dioctyl phthalate or a combination thereof；Described stabilizer is peroxide diisopropylbenzene (DIPB).
5. a kind of preparation method of New Regenerated pitch, including step：
First, six are hydrated to stir after alchlor, waste rubber powder and water proportion and make anti-rut agent；
Again, new pitch and waste asphalt are heated to 130-140 degree, are proportionally added in mixer, by mixer rotating speed
3000-4000 rev/min of modulation, after stirring 30-50 minute, adds modifying agent, plasticizer to continue stirring 30 minutes；By mixer
Rotating speed improves to 4000-5000 rev/min, adds anti-rut agent, stabilizer, keeps this rotating speed stirring 30-50 minute, stirring knot
Bundle；
Finally, mixture is placed in baking oven, swelling growth 60 minutes at a temperature of 150 degree, you can obtain being applied to road surface
Regeneration asphalt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610754810.5A CN106380873A (en) | 2016-08-30 | 2016-08-30 | New reclaimed asphalt and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610754810.5A CN106380873A (en) | 2016-08-30 | 2016-08-30 | New reclaimed asphalt and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106380873A true CN106380873A (en) | 2017-02-08 |
Family
ID=57917583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610754810.5A Pending CN106380873A (en) | 2016-08-30 | 2016-08-30 | New reclaimed asphalt and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN106380873A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110964336A (en) * | 2019-11-29 | 2020-04-07 | 东莞广泰公路材料科技有限公司 | Recycled asphalt mixture |
| CN112456865A (en) * | 2021-01-23 | 2021-03-09 | 天津市公路工程总公司 | High-rutting-resistance large-proportion recycled asphalt mixture and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106189288A (en) * | 2016-07-01 | 2016-12-07 | 河南九环保科技股份有限公司 | A kind of New Regenerated Colophonium and preparation method thereof |
-
2016
- 2016-08-30 CN CN201610754810.5A patent/CN106380873A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106189288A (en) * | 2016-07-01 | 2016-12-07 | 河南九环保科技股份有限公司 | A kind of New Regenerated Colophonium and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110964336A (en) * | 2019-11-29 | 2020-04-07 | 东莞广泰公路材料科技有限公司 | Recycled asphalt mixture |
| CN112456865A (en) * | 2021-01-23 | 2021-03-09 | 天津市公路工程总公司 | High-rutting-resistance large-proportion recycled asphalt mixture and preparation method thereof |
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Application publication date: 20170208 |
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