CN109534723A - A kind of preparation method of warm-mixed recycled asphalt mixture - Google Patents
A kind of preparation method of warm-mixed recycled asphalt mixture Download PDFInfo
- Publication number
- CN109534723A CN109534723A CN201811331212.2A CN201811331212A CN109534723A CN 109534723 A CN109534723 A CN 109534723A CN 201811331212 A CN201811331212 A CN 201811331212A CN 109534723 A CN109534723 A CN 109534723A
- Authority
- CN
- China
- Prior art keywords
- warm
- asphalt mixture
- agent
- mixed recycled
- recycled asphalt
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Road Paving Structures (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of preparation methods of warm-mixed recycled asphalt mixture, the production raw material of the warm-mixed recycled asphalt mixture mainly includes old asphalt mixture, new pitch, newly gathers materials and mineral aggregate, and steps are as follows for the preparation method: the first, determining the content of the old grading curve to gather materials and Bituminous concrete surface；The second, matched and the target level of prepared warm-mixed recycled asphalt mixture is matched according to the simple of the old asphalt mixture, determine related proportion；Third prepares compound warm-mixing agent；4th, compound warm mix regenerative agent is prepared；5th, warm-mixed recycled asphalt mixture is prepared；Reclaimed asphalt mixture made from the preparation method has good pavement performance and environmental-protecting performance and cost input is lower.
Description
Technical field
The present invention relates to field of road, in particular to a kind of preparation method of warm-mixed recycled asphalt mixture.
Background technique
The high grade pavement built in recent years is had comparative advantage with bituminous pavement, comprehensive due to traffic loading and natural cause
Cooperation is used, and service life only 10 years or so, that is to say, that every 10~15 years, asphalt concrete pavement just needed to overhaul one
It is secondary.
Applied of Asphalt Pavement Recycle Technique is the old asphalt pavement that will need to overhaul transformation, by digging, recycling, be crushed, sieve
Afterwards, then with regenerative agent, new mineral aggregate, new pitch suitably cooperate, mix and stir into again and meet road construction needs, meet country and industry
The reclaimed asphalt mixture of standard, and it is applied to road construction, a whole set of production technology of surfacing surface layer or base.
Warm-mixed recycled asphalt mixture is a kind of novel " environmental type " asphalt, due to reducing production and applying
Work temperature can reduce the short-term secondary aging of old material in process of production；Simultaneously under the action of viscosity reduction drag reducer, new pitch
High temperature viscosity reduce, mix and stir and be compacted under lower temperature so as to realize.
China's regeneration and the starting of warm mix technology are more late, moreover concentrate on pitch to the research of pitch regeneration techniques both at home and abroad
In the recycling and performance evaluation of ground surface material, the use of regeneration and regenerative agent to old material mostly concentrates on aged asphalt mixture
Hot recycling and cold renewal on, although also achieving many research achievements, during hot recycling, mix temperature is high, and RAP is utilized
Rate is low, not only accelerates the secondary aging of regeneration asphalt, but also energy consumption is high, and the gaseous contamination environment volatilized, cold mixing regeneration is mixed
Though closing, temperature is low, its pavement performance is poor, and the present invention is in view of the above problems, need to be proposed a kind of new solution.
Summary of the invention
The object of the present invention is to provide a kind of preparation methods of warm-mixed recycled asphalt mixture, which is characterized in that the temperature
The production raw material for mixing reclaimed asphalt mixture mainly includes old asphalt mixture, new pitch, newly gathers materials and mineral aggregate, the new pitch
For modified pitch or asphalt, the preparation method the following steps are included:
(1), old asphalt mixture is obtained, the content that test determines the old grading curve to gather materials and Bituminous concrete surface is stripped to it；
(2), matched and the target level of prepared warm-mixed recycled asphalt mixture is matched according to the simple of the old asphalt mixture, really
The weight ratio of fixed the warm mix regeneration asphalt and the warm-mixed recycled asphalt mixture, newly drips in the warm-mixed asphalt to obtain
The proportion of green and compound warm mix regenerative agent and prepare that the warm mix mixture needs newly gather materials and the Bituminous concrete surface mixture
Mass ratio；
(3), prepare compound warm-mixing agent: compound warm-mixing agent, stirring temperature is made in stirring after surfactant and warm-mixing agent are mixed
Degree is 125 DEG C~140 DEG C, and mixing time is 7min~12min, and the warm-mixing agent is Sasobit, and the surfactant is
DATH5 additive, the dosage of compound warm-mixing agent are 8%~18% of Bituminous concrete surface quality described in step (2), the Sasobit
Warm-mixing agent volume is the 1%~3% of Warm-Mix Bitumen Mixture；
(4), prepare compound warm mix regenerative agent: into the compound warm-mixing agent of step (1) be added aromatic naphtha regenerative agent, SAK modifying agent,
Polyacrylonitrile fibre stabilizer, LTR thinner and age resister, which stir evenly, is made compound warm mix regenerative agent, whipping temp
180 DEG C~190 DEG C, melting time 6min-10min, age resister is one or both of RD or PB-2, the compound temperature
It is 30%~40% that the mass content for mixing aromatic naphtha regenerative agent in regenerative agent, which is the mass content of 60%~70%, LTR thinner,
The mass content of age resister is 1.5%~2%, and the mass content of polyacrylonitrile fibre stabilizer is 2%~3%；SAK is modified
The mass content of agent is 2%~3%；
(5), warm-mixed recycled asphalt mixture is prepared, detailed process is as follows:
51, it prepares warm mix regeneration asphalt: compound warm mix regenerative agent obtained in step (4) is added to heating stirring in new pitch
Warm mix regeneration asphalt is made, for heating temperature to 160~180 DEG C, mixing time is 50s~70s, the dosage of compound warm mix regenerative agent
It is the 10%~32% of Bituminous concrete surface quality；
52, heating is described newly gathers materials to 180~200 DEG C；
53, mixed for warm mix regeneration asphalt according to dosage is added in the old asphalt mixture and the mineral aggregate under (4) resulting room temperature
Close 20%~30% active carbon of material；
54, will be heated in mixture and step 52 that step 53 obtains it is resulting newly gather materials stir evenly, after by institute in step 51
Warm mix regeneration asphalt is obtained to be added thereto and stir evenly.
Finally, the warm mix regenerating mixture is equably paved on road surface, using dual-steel wheel road roller and rubber tire
Road roller respectively rolls 3~4 times, molding.
With prior art tank wall, the invention has the advantages that: first to old asphalt mixture carry out it is secondary
Heating, but directly launch and participate in mixing and stirring into virgin material, it avoids heating caused Marshall stability, flow valuve and vehicle well
The variation of rut；Second can be such that the softening point of pitch significantly improves using Sasobit warm-mixing agent, and anti-rut behavior improves, due to
It causes pitch anti-aging property to be deteriorated, and compensates for this defect using age resister, makes the globality of reclaimed asphalt mixture
Superior state can be in；Third stabilizer can be played to pitch toughening, thickening, and enhancing enhances rubber cement to the bond stress gathered materials
Shearing resistance tensile capacity；4th, the addition of active carbon can adsorb the toxic gas of whipping process, reduce human body soakage, improve
Environmentally friendly degree.
Specific embodiment
As described below is only the preferred embodiment of the present invention, and protection scope is not limited merely to the embodiment, all to belong to
Protection scope of the present invention should belong in technical solution under thinking of the present invention.Simultaneously it should be pointed out that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Embodiment 1:(1) old asphalt mixture is obtained, it is stripped test to it and determines the old grading curve to gather materials and old
The content of pitch；
(2), matched and the target level of prepared warm-mixed recycled asphalt mixture is matched according to the simple of the old asphalt mixture, really
The weight ratio of fixed the warm mix regeneration asphalt and the warm-mixed recycled asphalt mixture, newly drips in the warm-mixed asphalt to obtain
The proportion of green and compound warm mix regenerative agent and prepare that the warm mix mixture needs newly gather materials and the Bituminous concrete surface mixture
Mass ratio；
(3), prepare compound warm-mixing agent: compound warm-mixing agent, stirring temperature is made in stirring after surfactant and warm-mixing agent are mixed
Degree is 125 DEG C, mixing time 7min, and the warm-mixing agent is Sasobit, and the surfactant is DAT H5 additive, multiple
The dosage for closing warm-mixing agent is 8% of Bituminous concrete surface quality described in step (2), and the Sasobit warm-mixing agent volume is warm-mixed asphalt
The 1% of mixture；
(4), prepare compound warm mix regenerative agent: into the compound warm-mixing agent of step (1) be added aromatic naphtha regenerative agent, SAK modifying agent,
Polyacrylonitrile fibre stabilizer, LTR thinner and age resister, which stir evenly, is made compound warm mix regenerative agent, whipping temp
180 DEG C, melting time 6min, age resister RD, the mass content of aromatic naphtha regenerative agent in the compound warm mix regenerative agent
Mass content for 60%, LTR thinner is 30%, and the mass content of age resister is 1.5%, polyacrylonitrile fibre stabilizer
Mass content be 2%；The mass content of SAK modifying agent is 2%；
(5), warm-mixed recycled asphalt mixture is prepared, detailed process is as follows:
51, it prepares warm mix regeneration asphalt: compound warm mix regenerative agent obtained in step (4) is added to heating stirring in new pitch
Warm mix regeneration asphalt is made, for heating temperature to 160 DEG C, mixing time 50s, the dosage of compound warm mix regenerative agent is Bituminous concrete surface matter
The 10% of amount；
52, heating is described newly gathers materials to 180 DEG C；
53, mixed for warm mix regeneration asphalt according to dosage is added in the old asphalt mixture and the mineral aggregate under (4) resulting room temperature
Close 20% active carbon of material；
54, will be heated in mixture and step 52 that step 53 obtains it is resulting newly gather materials stir evenly, after by institute in step 51
Warm mix regeneration asphalt is obtained to be added thereto and stir evenly.
Finally, the warm mix regenerating mixture is equably paved on road surface, using dual-steel wheel road roller and rubber tire
Road roller respectively rolls 3 times, molding.
The target level of the asphalt of 1 embodiment 1 of table preparation is matched
The simple of asphalt is matched in 2 embodiment 1 of table
Embodiment 2 and the difference of embodiment 1 are that age resister is PB-2.
Embodiment 3 and the difference of embodiment 1 are that age resister is both RD and PB-2.
The difference of embodiment 4 and embodiment 3 is that the dosage of Sasobit warm-mixing agent is 2%.
Embodiment 5 and the difference of embodiment 1 are that polyacrylonitrile fibre stabilizing agent dosage is 2.2%.
Embodiment 6 and the difference of embodiment 1 are that polyacrylonitrile fibre stabilizing agent dosage is 2.4%.
Embodiment 7 and the difference of embodiment 1 are that polyacrylonitrile fibre stabilizing agent dosage is 2.6%.
Embodiment 8 and embodiment 3, which are distinguished, is that the dosage of Sasobit warm-mixing agent is 2.5%.
Embodiment 9 and embodiment 3, which are distinguished, is that the dosage of Sasobit warm-mixing agent is 3%.
Embodiment 10 is the difference from embodiment 1 is that the dosage of active carbon is 23%.
Embodiment 11 is the difference from embodiment 1 is that the dosage of active carbon is 26%.
Embodiment 12 is the difference from embodiment 1 is that the dosage of active carbon is 30%
Dynamic stability reflects the high temperature rutting resistance of asphalt, and the numerical value of the index shows more greatly asphalt
Rutting resistance is stronger, and the difference in embodiment 4,8,9 is that the dosage of Sasobit warm-mixing agent is different, and Sasobit warm-mixing agent is used
Amount is bigger, and rutting resistance is bigger；Main contrast's embodiment 1,10,11,12, it can be seen that active carbon to a certain extent can be with
Effective adsorptive pitch distributes toxic gas, reduces the amount of road pedestrian sucking mouth and nose, improves pitch environment-friendly type；Show this hair
It is bright that active carbon ingredient and compound warm-mixing agent are added during preparing warm-mixed recycled asphalt mixture, old asphalt mixture can be made
Pavement performance be restored to and newly mix the level of asphalt, improve pitch environmental-protecting performance and pavement performance.
Claims (9)
1. a kind of preparation method of warm-mixed recycled asphalt mixture, which is characterized in that the system of the warm-mixed recycled asphalt mixture
Make raw material mainly include old asphalt mixture, new pitch, newly gather materials with mineral aggregate the following steps are included:
(1), old asphalt mixture is obtained, the content that test determines the old grading curve to gather materials and Bituminous concrete surface is stripped to it；
(2), matched and the target level of prepared warm-mixed recycled asphalt mixture is matched according to the simple of the old asphalt mixture, really
The weight ratio of fixed the warm mix regeneration asphalt and the warm-mixed recycled asphalt mixture, newly drips in the warm-mixed asphalt to obtain
The proportion of green and compound warm mix regenerative agent and prepare that the warm mix mixture needs newly gather materials and the Bituminous concrete surface mixture
Mass ratio；
(3), prepare compound warm-mixing agent: compound warm-mixing agent, stirring temperature is made in stirring after surfactant and warm-mixing agent are mixed
Degree is 125 DEG C~140 DEG C, and mixing time is 7min~12min；
(4), it prepares compound warm mix regenerative agent: regenerative agent, modifying agent, stabilizer, drop being added into the compound warm-mixing agent of step (1)
Stick and age resister, which stir evenly, is made compound warm mix regenerative agent, and whipping temp is 180 DEG C~190 DEG C, and the melting time is
6min-10min；
(5), warm-mixed recycled asphalt mixture is prepared, detailed process is as follows:
51, it prepares warm mix regeneration asphalt: compound warm mix regenerative agent obtained in step (4) is added to heating stirring in new pitch
Warm mix regeneration asphalt is made, for heating temperature to 160~180 DEG C, mixing time is 50s~70s；
52, heating is described newly gathers materials to 180~200 DEG C；
53, active carbon is added according in the old asphalt mixture and the mineral aggregate under (4) resulting room temperature；
54, will be heated in mixture and step 52 that step 53 obtains it is resulting newly gather materials stir evenly, after by institute in step 51
Warm mix regeneration asphalt is obtained to be added thereto and stir evenly.
2. a kind of preparation method of warm-mixed recycled asphalt mixture according to claim 1, which is characterized in that the activity
The dosage of charcoal is the 20%~30% of warm-mixed recycled asphalt mixture.
3. a kind of preparation method of warm-mixed recycled asphalt mixture according to claim 1, which is characterized in that the step
(3) warm-mixing agent is Sasobi, and the surfactant is DAT H5 additive.
4. a kind of preparation method of warm-mixed recycled asphalt mixture according to claim 1, which is characterized in that step (4)
In the regenerative agent be aromatic naphtha, the modifying agent be SAK, age resister be one or both of RD or PB-2；It is described
Stabilizer is polyacrylonitrile fibre；The thinner is LTR.
5. a kind of preparation method of warm-mixed recycled asphalt mixture according to claim 4, which is characterized in that described compound
The dosage of warm-mixing agent is 8%~18% of Bituminous concrete surface quality described in step (2).
6. a kind of preparation method of warm-mixed recycled asphalt mixture according to claim 1, which is characterized in that step (4)
Described in compound warm mix regenerative agent the mass content of regenerative agent be 60%~70%, the mass content of thinner is 30%~40%,
The mass content of age resister is 1.5%~2%, and the mass content of stabilizer is 2%~3%, the mass content of modifying agent is 2%~
3%。
7. a kind of preparation method of warm-mixed recycled asphalt mixture according to claim 1, which is characterized in that step (5)
Described in compound warm mix regenerative agent dosage be Bituminous concrete surface quality 10%~32%.
8. a kind of preparation method of warm-mixed recycled asphalt mixture according to claim 1, which is characterized in that described
Sasobit warm-mixing agent volume is the 1%~3% of Warm-Mix Bitumen Mixture.
9. a kind of preparation method of warm-mixed recycled asphalt mixture according to claim 1, which is characterized in that will be described
Warm mix regenerating mixture equably paves on road surface, is respectively rolled 3~4 times using dual-steel wheel road roller and pneumatic-tired rollers, at
Type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811331212.2A CN109534723A (en) | 2018-11-09 | 2018-11-09 | A kind of preparation method of warm-mixed recycled asphalt mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811331212.2A CN109534723A (en) | 2018-11-09 | 2018-11-09 | A kind of preparation method of warm-mixed recycled asphalt mixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109534723A true CN109534723A (en) | 2019-03-29 |
Family
ID=65846657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811331212.2A Pending CN109534723A (en) | 2018-11-09 | 2018-11-09 | A kind of preparation method of warm-mixed recycled asphalt mixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109534723A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110423475A (en) * | 2019-07-24 | 2019-11-08 | 中交三公局第一工程有限公司 | A kind of preparation method of warm mix low pollution regeneration asphalt |
| CN111003970A (en) * | 2019-12-25 | 2020-04-14 | 上海浦兴路桥建设工程有限公司 | Preparation method of drainage warm-mix recycled asphalt mixture |
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104211325A (en) * | 2014-08-25 | 2014-12-17 | 北京太和洁源科技发展有限公司 | Asphalt concrete |
| CN105293996A (en) * | 2015-11-27 | 2016-02-03 | 长安大学 | Warm-mixing recycled asphalt mixture preparation method |
| KR20160087125A (en) * | 2015-01-13 | 2016-07-21 | 김종문 | The manufacture method of the heat recycled asphalt mixture used recycled oil |
| CN105859175A (en) * | 2016-04-21 | 2016-08-17 | 天津市公路工程总公司 | Plant-mixed warm regenerated asphalt mixture of large-proportion RAP material |
| CN106145777A (en) * | 2016-06-29 | 2016-11-23 | 广州新粤交通技术有限公司 | Warm-mixed recycled asphalt mixture and preparation method thereof |
-
2018
- 2018-11-09 CN CN201811331212.2A patent/CN109534723A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104211325A (en) * | 2014-08-25 | 2014-12-17 | 北京太和洁源科技发展有限公司 | Asphalt concrete |
| KR20160087125A (en) * | 2015-01-13 | 2016-07-21 | 김종문 | The manufacture method of the heat recycled asphalt mixture used recycled oil |
| CN105293996A (en) * | 2015-11-27 | 2016-02-03 | 长安大学 | Warm-mixing recycled asphalt mixture preparation method |
| CN105859175A (en) * | 2016-04-21 | 2016-08-17 | 天津市公路工程总公司 | Plant-mixed warm regenerated asphalt mixture of large-proportion RAP material |
| CN106145777A (en) * | 2016-06-29 | 2016-11-23 | 广州新粤交通技术有限公司 | Warm-mixed recycled asphalt mixture and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110423475A (en) * | 2019-07-24 | 2019-11-08 | 中交三公局第一工程有限公司 | A kind of preparation method of warm mix low pollution regeneration asphalt |
| CN111003970A (en) * | 2019-12-25 | 2020-04-14 | 上海浦兴路桥建设工程有限公司 | Preparation method of drainage warm-mix recycled asphalt mixture |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105293996B (en) | A kind of preparation method of warm-mixed recycled asphalt mixture | |
| CN106145777B (en) | Warm-mixed recycled asphalt mixture and preparation method thereof | |
| CN105236831B (en) | A kind of aged asphalt regenerative agent, reclaimed asphalt mixture and preparation method thereof | |
| CN108003639B (en) | Maintenance construction method for asphalt pavement cementation wearing course | |
| CN106830767B (en) | A kind of bituminous paving check crack punishment regeneration sealing material and preparation method thereof | |
| CN105408280A (en) | Room-temperature circulation asphalt composition and road paving method using the same | |
| CN113698139B (en) | High-doping-amount RAP plant-mixed hot-recycling modified asphalt mixture and preparation method thereof | |
| CN109534723A (en) | A kind of preparation method of warm-mixed recycled asphalt mixture | |
| CN101235209A (en) | Asphalt pavement conditioning curing agent and preparation method thereof | |
| CN101851890A (en) | Fiber bitumen macadam seal coat method | |
| CN102153874A (en) | Composite modified asphalt and preparation method thereof | |
| CN104058638B (en) | A kind of asphalt | |
| CN108221560A (en) | The construction technology on rubber powder modified asphalt road surface | |
| CN104003661B (en) | A kind of permeable reclaimed asphalt mixture pavior brick and preparation method thereof | |
| CN104072023A (en) | Pavement made from asphalt mixture | |
| CN105255205B (en) | A kind of low-temp recovery asphalt and preparation method thereof | |
| CN104594151B (en) | Water drainage anti-cracking type cold-recycling pavement structure | |
| CN106242378A (en) | Hot in-plant reclaimed asphalt mixture and preparation method thereof | |
| CN104072024A (en) | Preparation process of asphalt mixture | |
| CN107501967A (en) | Asphalt modifier, preparation method and the asphalt containing it | |
| CN106948235A (en) | A kind of bituminous paving interlayer construction method | |
| CN103570279A (en) | Material for rapidly and effectively repairing pits in bituminous pavement and preparation method of material | |
| CN109761540A (en) | A kind of superthin layer pitch mixing material, preparation method and application method | |
| Al-Rubaie et al. | Assessment the performance of asphalt mixtures modified with waste tire rubber at high temperatures | |
| CN112252108B (en) | Road construction method for in-situ cold recycling of asphalt pavement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190329 |