CN106398242B - Miberal powder and waste tyre pyrolytic oil and rubber powder production high performance modified bitumen method and its product are recycled using asphalt mixing plant - Google Patents
Miberal powder and waste tyre pyrolytic oil and rubber powder production high performance modified bitumen method and its product are recycled using asphalt mixing plant Download PDFInfo
- Publication number
- CN106398242B CN106398242B CN201610772623.XA CN201610772623A CN106398242B CN 106398242 B CN106398242 B CN 106398242B CN 201610772623 A CN201610772623 A CN 201610772623A CN 106398242 B CN106398242 B CN 106398242B
- Authority
- CN
- China
- Prior art keywords
- powder
- asphalt
- rubber
- high performance
- modified bitumen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- 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
Asphalt mixing plant recycling miberal powder and waste tyre pyrolytic oil and rubber powder production high performance modified bitumen method and its product are utilized the invention discloses a kind of, its each component and weight percent is as follows: asphalt 40~50%, abandoned mine powder 15~20%, waste tire pyrolysis oil 25~30%, Petropols 2~5%, Styrene-Butadiene-Styrene Block Copolymer 4~10%, butadiene-styrene rubber 2~5%；The technique of method provided by the invention is simple, it is easy to accomplish, obtained high performance modified bitumen product is compared with existing conventional modified asphalt material; softening point is substantially improved; low temperature performance well, while viscosity is reduced than rubber asphalt, other asphalt materials can be replaced to be widely used in each grade road surface; while significantly improving Pavement Condition; solid waste is largely used, to save petroleum resources, protects environment; cost is reduced simultaneously, is conducive to wide popularization and application.
Description
Technical field
The invention belongs to pitch preparation technical fields, and in particular to a kind of to utilize asphalt mixing plant recycling miberal powder and damaged tire
Product made from pyrolysis oil and rubber powder production high performance modified bitumen method and implementation this method.
Background technique
Dust can be generated in the production process of rock crushing plant since bituminous concrete produces building stones used, dust adhesion is in stone
Asphalt mixing plant can be transported therewith on material.Asphalt mixing plant during bituminous concrete, need to building stones carry out scraper,
Conveying, heating and mix, dust can emit pollution environment, and mixing station needs to return dust by bag-type dust collector
It receives.Dust fraction after the recovery can be re-added in asphalt, most of not all to be available and discard, and be disposed
Improper meeting land occupation seriously pollutes environment, therefore the processing of abandoned mine powder is always to perplex one of the problem of asphalt mixing plant.But
These abandoned mine powder are since volume is very small, and for partial size substantially all in 0.075mm hereinafter, having good specific surface area, activity is preferable,
It is easy to react with pitch and other materials.These abandoned mine powder have certain intensity simultaneously, are good fillers, can be with
Improve the mechanical property of pitch.Most of all, by with various modified asphalt materials including in process of production SBS and damaged tire
" grafting " reaction occurs for rubber powder etc., is effectively improved the isolation problem of modified pitch.
And with the development of Domestic Automotive Industry, produce more and more waste tires.The processing of existing waste tire
Mode includes tyre rebuilding, is ground into rubber powder production reclaimed rubber.Wherein tyre rebuilding has number limitation, when renovation is to centainly
Number does not allow for being renovated again, can only discard, and is ground into rubber powder, and part rubber powder be used to produce road rubber asphalt.Rubber
Glue pitch has good pavement performance, and the environment protection significance with certain cyclic utilization of waste, is centainly promoted.But rubber
Asphalt viscosity is big, it is necessary to which production and building stones mix and stir construction under the high temperature conditions, and the flue dust of volatilization is larger, smell is heavier, is promoting
Certain resistance is also received in the process.Tire is added to a large amount of furfural oil in process of production, after furfural oil is reacted with rubber
With good performance, by carrying out Pintsch process to waste tire, the grease after original furfural oil is reacted with rubber can be analysed
Out, it is partially used as inferior fuel, calorific value is not high, but discharge is very serious, therefore the country limits its use.
Summary of the invention
In view of the above-mentioned deficiencies, one of the object of the invention is, it is simple to provide a kind of technique, it is easy to accomplish, it can be replaced
Its asphalt material is widely used in each grade road surface, while significantly improving Pavement Condition, largely uses solid waste
Object protects environment to save petroleum resources, while reducing the utilization asphalt mixing plant recycling miberal powder and waste tyre pyrolytic of cost
Oil and rubber powder produce high performance modified bitumen method；
The object of the invention also resides in, and it is above-mentioned oily using asphalt mixing plant recycling miberal powder and waste tyre pyrolytic to provide a kind of implementation
And product made from rubber powder production high performance modified bitumen method.The product can replace other asphalt materials to be widely used in each grade
In road surface, while significantly improving Pavement Condition, solid waste is largely used, to save petroleum resources, is protected
Environment, production cost are low.
To achieve the above object, the technical solution provided by the present invention is:
It is a kind of to produce high performance modified bitumen method using asphalt mixing plant recycling miberal powder and waste tyre pyrolytic oil and rubber powder,
Itself the following steps are included:
(1) preparing material: each component and weight percent of raw material are as follows:
(2) heating mixing: waste tire pyrolysis oil is heated to 140~160 DEG C or more, then gradually adds butadiene-styrene rubber
Enter into waste tire pyrolysis oil, Styrene-Butadiene-Styrene Block Copolymer, and continuous heating stirring is then added；
(3) when temperature to be heated rises to 170~190 DEG C, asphalt, Petropols and abandoned mine powder are sequentially added, wait stir
After mixing uniformly, high performance modified bitumen product is made.
As an improvement of the present invention, styrene-fourth is added after butadiene-styrene rubber is completely dissolved in the step (2)
Styrene block copolymer.
As an improvement of the present invention, the step (3) specifically includes the following steps: temperature to be heated rise to 170~
At 190 DEG C, asphalt is added, is continuing temperature control stirring 10~Petropols are added after forty minutes, then persistently stirring 10~
50 minutes, be eventually adding abandoned mine powder stirring stirring 5~after forty minutes, high performance modified bitumen product is made.
As an improvement of the present invention, the Petropols are C5 Petropols.
As an improvement of the present invention, the abandoned mine powder is mistake of the highway asphalt mixing station in production asphalt
By the abandoned mine powder of bag-type dust recycling in journey, abandoned mine powder particles partial size less than 200 mesh content 95% or more, and can only adopt
The recycling miberal powder generated during heating building stones conveying mix with gas burner heating roller.
As an improvement of the present invention, the waste tire pyrolysis oil is that the above truck of diameter 900mm is waste and old
Tire passes through whole liquids that high temperature pyrolysis process generates.
A kind of implementation is above-mentioned high-performance modified using asphalt mixing plant recycling miberal powder and waste tyre pyrolytic oil and rubber powder production
Product made from pitch method, each component and weight percent it is as follows:
The invention has the benefit that the technique of method provided by the invention is simple, it is easy to accomplish, it is a certain amount of by being added
Waste tire pyrolysis oil greatly improve the cryogenic property of pitch, while reducing its viscosity, improve use condition, it is obtained
Compared with existing conventional modified asphalt material, softening point is substantially improved high performance modified bitumen product, low temperature performance well, glues simultaneously
Degree is reduced than rubber asphalt, other asphalt materials can be replaced to be widely used in each grade road surface, significantly improved pavement usage
While energy, solid waste is largely used, to save petroleum resources, environment is protected, while reducing cost, conducive to pushing away extensively
Wide application.
Below with reference to embodiment, the invention will be further described.
Specific embodiment
Embodiment 1: it is provided in this embodiment it is a kind of using asphalt mixing plant recycling miberal powder and waste tyre pyrolytic oil and rubber powder
Produce high performance modified bitumen method comprising following steps:
(1) preparing material: each component and weight percent of raw material are as follows: asphalt 40%, abandoned mine powder 15% are waste and old
Tire pyrolysis oil 30%, Petropols 5%, Styrene-Butadiene-Styrene Block Copolymer (SBS) 5%, butadiene-styrene rubber
5%；
(2) heating mixing: waste tire pyrolysis oil is heated to 140~160 DEG C or more, then gradually adds butadiene-styrene rubber
Enter into waste tire pyrolysis oil, Styrene-Butadiene-Styrene Block Copolymer, and continuous heating stirring is then added；Compared with
Good, Styrene-Butadiene-Styrene Block Copolymer is added after butadiene-styrene rubber is completely dissolved in the step (2).
(3) when temperature to be heated rises to 170~190 DEG C, asphalt, Petropols and abandoned mine powder are sequentially added, wait stir
After mixing uniformly, high performance modified bitumen product is made.Preferably, the step (3) is specifically includes the following steps: temperature to be heated
When rising to 170~190 DEG C, asphalt is added, is continuing temperature control stirring 10~Petropols are added after forty minutes, is then continuing
Stirring 10~50 minutes, be eventually adding abandoned mine powder stirring stirring 5~after forty minutes, high performance modified bitumen product is made.
Preferably, the Petropols are C5 Petropols.The abandoned mine powder is that highway asphalt mixing station is dripped in production
During green mixture by bag-type dust recycling abandoned mine powder, abandoned mine powder particles partial size less than 200 mesh content 95%
More than, and the recycling miberal powder that can only be generated during heating building stones conveying mix using gas burner heating roller.It is described
Waste tire pyrolysis oil be the above truck waste tire of diameter 900mm pass through high temperature pyrolysis process generate whole liquid
Substance.
A kind of implementation is above-mentioned high-performance modified using asphalt mixing plant recycling miberal powder and waste tyre pyrolytic oil and rubber powder production
Product made from pitch method, each component and weight percent it is as follows: asphalt 40%, abandoned mine powder 15%, waste and old wheel
Tire pyrolysis oil 30%, Petropols 5%, Styrene-Butadiene-Styrene Block Copolymer (SBS) 5%, butadiene-styrene rubber 5%.
High performance modified bitumen side is produced using asphalt mixing plant recycling miberal powder and waste tyre pyrolytic oil and rubber powder through above-mentioned
High performance modified bitumen product index made from method are as follows:
| Project | Unit | Test result | Test method |
| 25 DEG C of needle penetration | 0.1mm | 129 | T0604 |
| 5 DEG C of ductilities | cm | 73.5 | T0605 |
| Softening point (R & B) | ℃ | 84.3 | T0606 |
| Elasticity is restored | % | 69.2 | T0662 |
| Bu Shi rotary viscosity (180 DEG C) | Pa·s | 3.5 | T0611 |
Embodiment 2, it is provided in this embodiment it is a kind of using asphalt mixing plant recycling miberal powder and waste tyre pyrolytic oil and rubber powder
High performance modified bitumen method and its product are produced, component and making step are substantially the same manner as Example 1, and difference exists
In each component and its weight percent of raw material are as follows: asphalt 50%, abandoned mine powder 15%, waste tire pyrolysis oil 25%,
Petropols 2%, Styrene-Butadiene-Styrene Block Copolymer (SBS) 4%, butadiene-styrene rubber 4%.
High performance modified bitumen side is produced using asphalt mixing plant recycling miberal powder and waste tyre pyrolytic oil and rubber powder through above-mentioned
High performance modified bitumen product index made from method are as follows:
| Project | Unit | Test result | Test method |
| 25 DEG C of needle penetration | 0.1mm | 99.6 | T0604 |
| 5 DEG C of ductilities | cm | 44.8 | T0605 |
| Softening point (R & B) | ℃ | 89.3 | T0606 |
| Elasticity is restored | % | 56.2 | T0662 |
| Bu Shi rotary viscosity (180 DEG C) | Pa·s | 2.5 | T0611 |
Embodiment 3, it is provided in this embodiment it is a kind of using asphalt mixing plant recycling miberal powder and waste tyre pyrolytic oil and rubber powder
High performance modified bitumen method and its product are produced, component and making step are substantially the same manner as Example 1, and difference exists
In each component and its weight percent of raw material are as follows: asphalt 45%, abandoned mine powder 16%, waste tire pyrolysis oil 26%,
Petropols 4%, Styrene-Butadiene-Styrene Block Copolymer (SBS) 7%, butadiene-styrene rubber 2%.
High performance modified bitumen side is produced using asphalt mixing plant recycling miberal powder and waste tyre pyrolytic oil and rubber powder through above-mentioned
High performance modified bitumen product index made from method are as follows:
| Project | Unit | Test result | Test method |
| 25 DEG C of needle penetration | 0.1mm | 89.6 | T0604 |
| 5 DEG C of ductilities | cm | 75.8 | T0605 |
| Softening point (R & B) | ℃ | 90.3 | T0606 |
| Elasticity is restored | % | 67.6 | T0662 |
| Bu Shi rotary viscosity (180 DEG C) | Pa·s | 2.6 | T0611 |
Embodiment 4, it is provided in this embodiment it is a kind of using asphalt mixing plant recycling miberal powder and waste tyre pyrolytic oil and rubber powder
High performance modified bitumen method and its product are produced, component and making step are substantially the same manner as Example 1, and difference exists
In each component and its weight percent of raw material are as follows: asphalt 40%, abandoned mine powder 15%, waste tire pyrolysis oil 30%,
Petropols 2%, Styrene-Butadiene-Styrene Block Copolymer (SBS) 10%, butadiene-styrene rubber 3%.
High performance modified bitumen side is produced using asphalt mixing plant recycling miberal powder and waste tyre pyrolytic oil and rubber powder through above-mentioned
High performance modified bitumen product index made from method are as follows:
| Project | Unit | Test result | Test method |
| 25 DEG C of needle penetration | 0.1mm | 110 | T0604 |
| 5 DEG C of ductilities | cm | 84 | T0605 |
| Softening point (R & B) | ℃ | 92 | T0606 |
| Elasticity is restored | % | 51 | T0662 |
| Bu Shi rotary viscosity (180 DEG C) | Pa·s | 2.5 | T0611 |
Embodiment 5, it is provided in this embodiment it is a kind of using asphalt mixing plant recycling miberal powder and waste tyre pyrolytic oil and rubber powder
High performance modified bitumen method and its product are produced, component and making step are substantially the same manner as Example 1, and difference exists
In each component and its weight percent of raw material are as follows: asphalt 42%, abandoned mine powder 20%, waste tire pyrolysis oil 26%,
Petropols 3%, Styrene-Butadiene-Styrene Block Copolymer (SBS) 6%, butadiene-styrene rubber 3%.
In general, high performance modified bitumen product made from method provided by the invention and existing conventional modified pitch material
Material is compared, and (conventional modified pitch includes Sbs, rubber asphalt, and softening point is generally between 60-70 DEG C) is substantially improved in softening point,
Cryogenic property greatly improves (conventional modified pitch includes Sbs, rubber asphalt, and ductility is approximately less than 40cm), while viscosity compares rubber
Glue pitch reduces.Specifically, the performance parameter of high performance modified bitumen product of the present invention is as follows:
In addition, in other embodiments when carrying out the selection of each component ratio, it can be within the above range according to reality
It needs to select, to obtain the product of different specific performance features.
Above-described embodiment is only the preferable embodiment of the present invention, and the present invention cannot enumerate out whole embodiment party
Formula, all technical solutions using one of above-described embodiment, or the equivalent variations done according to above-described embodiment are protected in the present invention
It protects in range.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and is modified.Therefore, the invention is not limited to the specific embodiments disclosed and described above, to of the invention
Some modifications and changes should also be as falling into the scope of the claims of the present invention.In addition, although being used in this specification
Some specific terms, these terms are merely for convenience of description, does not limit the present invention in any way, using with its
Other pitch methods and product, all fall in the scope of protection of the present invention obtained from same or similar method and component.
Claims (6)
1. a kind of produce high performance modified bitumen method using asphalt mixing plant recycling miberal powder and waste tyre pyrolytic oil and rubber powder,
It is characterized in that comprising following steps:
(1) preparing material: each component and weight percent of raw material are as follows:
(2) heating mixing: waste tire pyrolysis oil is heated to 140~160 DEG C or more, is then added gradually to butadiene-styrene rubber
In waste tire pyrolysis oil, Styrene-Butadiene-Styrene Block Copolymer, and continuous heating stirring is then added；
(3) when temperature to be heated rises to 170~190 DEG C, asphalt, Petropols and abandoned mine powder are sequentially added, it is to be mixed equal
After even, high performance modified bitumen product is made；
The abandoned mine powder is highway asphalt mixing station giving up by bag-type dust recycling during producing asphalt
Miberal powder, abandoned mine powder particles partial size less than 200 mesh content 95% or more, and can only using gas burner heating roller add
The recycling miberal powder generated during hot building stones conveying mix.
2. according to claim 1 produce high-performance using asphalt mixing plant recycling miberal powder and waste tyre pyrolytic oil and rubber powder
Modified pitch method, which is characterized in that add styrene-butadiene-after butadiene-styrene rubber is completely dissolved in the step (2)
Styrene block copolymer.
3. according to claim 1 produce high-performance using asphalt mixing plant recycling miberal powder and waste tyre pyrolytic oil and rubber powder
Modified pitch method, which is characterized in that the step (3) is specifically includes the following steps: temperature to be heated rises to 170~190 DEG C
When, asphalt is added, is continuing temperature control stirring 10~Petropols are added after forty minutes, is then persistently stirring 10~50 points
Clock, be eventually adding abandoned mine powder stirring stirring 5~after forty minutes, high performance modified bitumen product is made.
4. utilization asphalt mixing plant recycling miberal powder and waste tyre pyrolytic oil and rubber powder according to claim 1 to 3
Produce high performance modified bitumen method, which is characterized in that the Petropols are C5 Petropols.
5. utilization asphalt mixing plant recycling miberal powder and waste tyre pyrolytic oil and rubber powder according to claim 1 to 3
Produce high performance modified bitumen method, which is characterized in that the waste tire pyrolysis oil is the above truck of diameter 900mm
Waste tire passes through whole liquids that high temperature pyrolysis process generates.
6. raw using asphalt mixing plant recycling miberal powder and waste tyre pyrolytic oil and rubber powder described in a kind of one of implementation claim 1-5
Produce product made from high performance modified bitumen method, which is characterized in that its each component and weight percent is as follows:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610772623.XA CN106398242B (en) | 2016-08-30 | 2016-08-30 | Miberal powder and waste tyre pyrolytic oil and rubber powder production high performance modified bitumen method and its product are recycled using asphalt mixing plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610772623.XA CN106398242B (en) | 2016-08-30 | 2016-08-30 | Miberal powder and waste tyre pyrolytic oil and rubber powder production high performance modified bitumen method and its product are recycled using asphalt mixing plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106398242A CN106398242A (en) | 2017-02-15 |
| CN106398242B true CN106398242B (en) | 2019-01-15 |
Family
ID=58003330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610772623.XA Active CN106398242B (en) | 2016-08-30 | 2016-08-30 | Miberal powder and waste tyre pyrolytic oil and rubber powder production high performance modified bitumen method and its product are recycled using asphalt mixing plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106398242B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106967300A (en) * | 2017-04-21 | 2017-07-21 | 常州市鼎升环保科技有限公司 | A kind of method that bitumen regenerant is prepared based on waste tire |
| CN107163597A (en) * | 2017-06-28 | 2017-09-15 | 山东华特知新化工有限公司 | A kind of modified pitch, preparation method and application |
| CN110700033A (en) * | 2019-09-06 | 2020-01-17 | 北京中天路业科技有限公司 | Method for preparing durable asphalt concrete old material regeneration additive by utilizing waste tire rubber powder |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1597784A (en) * | 2004-08-13 | 2005-03-23 | 上海佛乐科技有限公司 | Modified asphalt and preparation process thereof |
| CN101735627A (en) * | 2010-01-11 | 2010-06-16 | 山东高速建设材料有限公司 | Waterproof material and preparation method thereof |
| CN102732279A (en) * | 2011-04-12 | 2012-10-17 | 华东理工大学 | Application of residual oil of waste tire pyrolysis oil in preparing and modifying road asphalt |
| CN103113047A (en) * | 2013-03-19 | 2013-05-22 | 陕西美通路面材料科技有限公司 | Technology for recycling recycled asphalt concrete |
| CN103408956A (en) * | 2013-08-16 | 2013-11-27 | 周乃承 | High-performance modified asphalt and preparation method thereof |
| CN104527154A (en) * | 2014-11-15 | 2015-04-22 | 昆明豫云通信技术有限公司 | A modified asphalt waterproof coiled material and a manufacturing method thereof |
| CN105176109A (en) * | 2015-08-30 | 2015-12-23 | 常州市鼎日环保科技有限公司 | Preparation method for modified asphalt mixture by using desulfurization slag |
-
2016
- 2016-08-30 CN CN201610772623.XA patent/CN106398242B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1597784A (en) * | 2004-08-13 | 2005-03-23 | 上海佛乐科技有限公司 | Modified asphalt and preparation process thereof |
| CN101735627A (en) * | 2010-01-11 | 2010-06-16 | 山东高速建设材料有限公司 | Waterproof material and preparation method thereof |
| CN102732279A (en) * | 2011-04-12 | 2012-10-17 | 华东理工大学 | Application of residual oil of waste tire pyrolysis oil in preparing and modifying road asphalt |
| CN103113047A (en) * | 2013-03-19 | 2013-05-22 | 陕西美通路面材料科技有限公司 | Technology for recycling recycled asphalt concrete |
| CN103408956A (en) * | 2013-08-16 | 2013-11-27 | 周乃承 | High-performance modified asphalt and preparation method thereof |
| CN104527154A (en) * | 2014-11-15 | 2015-04-22 | 昆明豫云通信技术有限公司 | A modified asphalt waterproof coiled material and a manufacturing method thereof |
| CN105176109A (en) * | 2015-08-30 | 2015-12-23 | 常州市鼎日环保科技有限公司 | Preparation method for modified asphalt mixture by using desulfurization slag |
Non-Patent Citations (3)
| Title |
|---|
| 回收废料用于沥青道路铺筑的研究与展望;高惠 等;《公路交通技术》;20120430(第2期);第31-36页 |
| 废轮胎热解油重质馏分制备的道路沥青老化性能研究;孙冬雪 等;《燃料化学学报》;20110531;第39卷(第5期);第396-400页 |
| 掺加废旧轮胎热解油的聚合物改性沥青性能研究;张跃峰;《交通标准化》;20140731;第42卷(第13期);第115-120页 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106398242A (en) | 2017-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105293996B (en) | A kind of preparation method of warm-mixed recycled asphalt mixture | |
| CN102786257B (en) | Plant-mixed thermally-modified asphalt regenerated mix and preparation method thereof | |
| CN100372891C (en) | Method for preparing modified asphalt mixture using waste and old tyre and hybrid method | |
| CN106202651A (en) | A kind of Optimization Design of heat regeneration asphalt mixture mineral aggregate gradation | |
| CN113698139B (en) | High-doping-amount RAP plant-mixed hot-recycling modified asphalt mixture and preparation method thereof | |
| CN104031397B (en) | A kind of regeneration epoxy asphalt road surface and preparation method thereof | |
| CN106398242B (en) | Miberal powder and waste tyre pyrolytic oil and rubber powder production high performance modified bitumen method and its product are recycled using asphalt mixing plant | |
| CN104844072A (en) | Preparation method of plant-mixed hot recycled asphalt mixture | |
| CN103556560A (en) | Preparation method of high-performance warm-mix regenerated asphalt mixture | |
| CN101973726A (en) | Porous pavement partially taking steel slag as coarse aggregate | |
| CN109608093B (en) | A kind of Recycled Asphalt Pavement and preparation method thereof | |
| CN103420643B (en) | A kind of preparation method of regeneration aggregate bituminous concrete and the application in bituminous pavement | |
| CN104119032A (en) | A regenerating method of an SBS asphalt mixture with a high RAP mixing amount | |
| CN104164817A (en) | Design method of hot recycled asphalt mixture with high RAP proportion | |
| CN106242378A (en) | Hot in-plant reclaimed asphalt mixture and preparation method thereof | |
| CN111747683A (en) | Hot-mix-in-plant asphalt mixture and preparation method thereof | |
| CN107501967A (en) | Asphalt modifier, preparation method and the asphalt containing it | |
| CN110331637A (en) | The fine sorting reuse method of road milling asphalt waste | |
| CN104403333A (en) | Modified asphalt cement particle, preparation method and applications thereof | |
| CN114920497A (en) | Harmless utilization method of oil shale slag and dry distillation drilling oil scrap slag | |
| CN109021595A (en) | A kind of hot recycling steel slag asphalt mixture | |
| CN103396669B (en) | Microwave desulfurization cracking rubber powder of waste tire composite modified asphalt and preparation method thereof | |
| CN107759137A (en) | A kind of preparation method of mechanical foaming pitch warm mix regenerating mixture | |
| CN104140223A (en) | Direct addition type activation rubber asphalt mixture and preparing method thereof | |
| CN103803859B (en) | A kind of response type rubber asphalt close-graded concrete and method of design thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |