CN114855549A - Emulsified asphalt cold-recycling mixture and preparation process thereof - Google Patents
Emulsified asphalt cold-recycling mixture and preparation process thereof Download PDFInfo
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- CN114855549A CN114855549A CN202210385651.1A CN202210385651A CN114855549A CN 114855549 A CN114855549 A CN 114855549A CN 202210385651 A CN202210385651 A CN 202210385651A CN 114855549 A CN114855549 A CN 114855549A
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- 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
- E01C19/02—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 preparing the materials
- E01C19/05—Crushing, pulverising or disintegrating apparatus; Aggregate screening, cleaning, drying or heating apparatus; Dust-collecting arrangements specially adapted therefor
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- 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
- E01C19/02—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 preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1004—Reconditioning or reprocessing bituminous mixtures, e.g. salvaged paving, fresh patching mixtures grown unserviceable; Recycling salvaged bituminous mixtures; Apparatus for the in-plant recycling thereof
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- 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
- E01C19/02—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 preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1059—Controlling the operations; Devices solely for supplying or proportioning the ingredients
- E01C19/1068—Supplying or proportioning the ingredients
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Road Paving Structures (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses a preparation process of an emulsified asphalt cold-recycling mixture, which comprises the following steps: step 1: crushing, screening and rubbing the waste asphalt pavement to prepare an asphalt pavement recycling material; step 2: preparing emulsified asphalt; and step 3: and uniformly mixing 100 parts of the asphalt pavement recycling material, 5-8 parts of emulsified asphalt, 8-10 parts of broken stone, 1-2 parts of cement, 5-8 parts of grease and 5-10 parts of water to obtain the emulsified asphalt cold recycling mixture. The invention also provides the emulsified asphalt cold-recycling mixture. The invention improves the adhesiveness of the asphalt pavement recycled material and the emulsified asphalt and improves the pavement performance of the emulsified asphalt cold-recycling mixture.
Description
Technical Field
The invention relates to the technical field of road materials. More specifically, the invention relates to an emulsified asphalt cold-recycling mixture and a preparation process thereof.
Background
The emulsified asphalt can regenerate the waste asphalt pavement material for recycling, and has the advantages of saving resources, protecting the environment, reducing the construction cost and the like. However, in the prior art, the waste asphalt pavement material, the emulsified asphalt and the new aggregate are directly mixed, and the obtained emulsified asphalt cold recycling mixture has poor performances due to poor adhesion between the emulsified asphalt and the waste asphalt pavement material.
Disclosure of Invention
The invention aims to provide an emulsified asphalt cold-recycling mixture and a preparation process thereof, which improve the adhesion between asphalt pavement recycled materials and emulsified asphalt and improve the pavement performance of the emulsified asphalt cold-recycling mixture by crushing, screening and rubbing waste asphalt pavements.
To achieve these objects and other advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, there is provided a process for preparing an emulsified asphalt cold-recycled mix, comprising: step 1: crushing, screening and rubbing the waste asphalt pavement to prepare an asphalt pavement recycling material; step 2: preparing emulsified asphalt; and step 3: and uniformly mixing 100 parts of the asphalt pavement recycling material, 5-8 parts of emulsified asphalt, 8-10 parts of broken stone, 1-2 parts of cement, 5-8 parts of grease and 5-10 parts of water to obtain the emulsified asphalt cold recycling mixture.
Further, the waste asphalt pavement is crushed to the average particle size of 10-15 mm.
Further, a friction treatment device is used for friction treatment, the friction treatment time is 60-120 minutes, and the friction treatment device comprises: the device comprises a roller, a first conveying device and a second conveying device, wherein one end of the roller is provided with a feeding hole, the feeding hole is used for feeding crushed and screened waste asphalt pavements, and the other end of the roller is provided with a discharging hole; the partition plates are arranged on the inner wall of the roller in a spacing ring mode and are arranged along the axial direction of the roller, and a plurality of strip-shaped channels are formed in the inner wall of the roller; the friction rollers are of solid cylindrical structures and arranged between the feed inlet and the partition plates, and the friction rollers and the partition plates are multiple in surface and are provided with protrusions.
Further, the roller is arranged in an inclined mode, the position of the feeding hole is higher than that of the discharging hole, gear teeth are arranged on the outer surface of the roller and meshed with a driving gear, and the driving gear is in power connection with a motor.
Further, the inner diameter of the roller is 100 cm, the outer diameter of the friction roller is 20 cm, the number of the friction rollers is three, and the mass of each friction roller is 100 kg.
Further, the emulsified asphalt is prepared from the following raw materials in parts by weight: 60-70 parts of matrix asphalt, 2-5 parts of emulsifier, 30-40 parts of water and 2-3 parts of SBS.
Further, in the step 3: and adding 5-8 parts of grease into 100 parts of the asphalt pavement recycling material, uniformly stirring, adding 5-8 parts of emulsified asphalt, 8-10 parts of broken stone and 1-2 parts of cement, uniformly stirring, and finally adding 5-10 parts of water, and uniformly stirring to obtain the emulsified asphalt cold-recycling mixture.
According to another aspect of the present invention, there is provided a friction treatment apparatus for an emulsified asphalt cold-recycling mix preparation process, comprising: the device comprises a roller, a first conveying device and a second conveying device, wherein one end of the roller is provided with a feeding hole, the feeding hole is used for feeding crushed and screened waste asphalt pavements, and the other end of the roller is provided with a discharging hole; the partition plates are arranged on the inner wall of the roller in a spacing ring mode and are arranged along the axial direction of the roller, and a plurality of strip-shaped channels are formed in the inner wall of the roller; the friction rollers are of solid cylindrical structures and are arranged between the feed inlet and the partition plates, and protrusions are arranged on the surfaces of the friction rollers and the partition plates; the roller is obliquely arranged, the position of the feed port is higher than that of the discharge port, gear teeth are arranged on the outer surface of the roller and are meshed with a driving gear, and the driving gear is in power connection with a motor; the inner diameter of the roller is 100 centimeters, the outer diameter of the friction roller is 20 centimeters, the number of the friction rollers is three, and the mass of each friction roller is 100 kg.
According to another aspect of the invention, the invention provides an emulsified asphalt cold-recycling mixture which is prepared by the preparation process of the emulsified asphalt cold-recycling mixture.
The invention at least comprises the following beneficial effects:
the waste asphalt pavement is subjected to crushing, screening and friction treatment, so that an aging layer of the asphalt pavement recycled material is damaged, an interface structure of asphalt pavement recycled material particles is changed, the adhesion of the asphalt pavement recycled material particles and emulsified asphalt is improved, the pavement performance of the emulsified asphalt cold-recycling mixture is improved, the generation of diseases such as cracks and ruts is reduced, and the service life of the pavement is prolonged.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic view of a friction treatment apparatus according to the present invention;
FIG. 2 is a schematic view of the structure of the separator and the rubbing roll according to the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
The embodiment of the application provides a preparation process of an emulsified asphalt cold-recycling mixture, which comprises the following steps: step 1: crushing, screening and rubbing the waste asphalt pavement to prepare an asphalt pavement recycling material, wherein rubbing refers to rubbing the screened waste asphalt pavement material particles to change the surface structure of the waste asphalt pavement material particles, promote the combination of the waste asphalt pavement material particles and emulsified asphalt and reduce the void ratio; step 2: preparing emulsified asphalt by adopting the prior art; and step 3: uniformly mixing 100 parts of the asphalt pavement recycled material, 5-8 parts of emulsified asphalt, 8-10 parts of broken stone, 1-2 parts of cement, 5-8 parts of grease and 5-10 parts of water to obtain the emulsified asphalt cold-recycling mixture; optionally, the asphalt pavement recycling material comprises 100 parts of asphalt pavement recycling material, 6 parts of emulsified asphalt, 8 parts of broken stone, 1 part of cement, 6 parts of grease and 6 parts of water.
In other embodiments, the waste asphalt pavement is crushed to an average particle size of 10-15 mm without being crushed to a smaller particle size, which further reduces the particles of the waste asphalt pavement during the subsequent friction treatment.
In other embodiments, the rubbing treatment is performed for 60 to 120 minutes, optionally 90 minutes, using a rubbing treatment apparatus comprising: the device comprises a roller, a first conveying device and a second conveying device, wherein one end of the roller is provided with a feeding hole, the feeding hole is used for feeding crushed and screened waste asphalt pavements, and the other end of the roller is provided with a discharging hole; the partition plates are arranged on the inner wall of the roller in a spacing ring mode and are arranged along the axial direction of the roller, and a plurality of strip-shaped channels are formed in the inner wall of the roller; the friction rollers are of solid cylindrical structures and are arranged between the feed inlet and the partition plates, and protrusions are arranged on the surfaces of the friction rollers and the partition plates; the roller can rotate around the self axis, the friction roller is arranged in the roller, and when the roller rotates, the friction roller can roll along the inside of the roller, so that the surface bulge of the friction roller can rub and roll the waste asphalt pavement material, and the surface aging layer of the waste asphalt pavement material is damaged; the partition plates are arranged along the axial direction of the roller and are separated into a plurality of strip-shaped channels, referring to fig. 2, the waste asphalt pavement materials processed by the friction roller are further extruded into the strip-shaped channels to be rubbed and then are discharged out of the roller; the friction treatment time can be adjusted by setting the rotation speed of the drum.
In other embodiments, the roller is arranged obliquely, the position of the feed port is higher than that of the discharge port, gear teeth are arranged on the outer surface of the roller, the gear teeth are meshed with a driving gear, and the driving gear is in power connection with a motor; optionally, the inclination angle of the roller is 10-20 degrees, and the position of the feeding hole is inclined upwards, so that the waste asphalt pavement materials can gradually move from the feeding hole to the discharging hole.
In other embodiments, size and mass parameters of an optional drum with an inner diameter of 100 cm, an outer diameter of 20 cm, three rubbing rollers each with a mass of 100kg, and rubbing rollers are provided.
In other embodiments, the emulsified asphalt is prepared from the following raw materials in parts by weight: 60-70 parts of matrix asphalt, 2-5 parts of emulsifier, 30-40 parts of water and 2-3 parts of SBS; firstly, heating base asphalt to 100-120 ℃, adding SBS, reacting for 3 hours, dissolving emulsifier with water, mixing with SBS modified base asphalt, and shearing and emulsifying at high speed to obtain emulsified asphalt; the emulsifier is cationic quaternary ammonium salt emulsifier.
In other embodiments, in step 3: adding 5-8 parts of grease into 100 parts of the asphalt pavement recycling material, uniformly stirring, adding 5-8 parts of emulsified asphalt, 8-10 parts of broken stone and 1-2 parts of cement, uniformly stirring, and finally adding 5-10 parts of water, and uniformly stirring to obtain the emulsified asphalt cold-recycling mixture; the oil can be selected from turpentine.
As shown in FIGS. 1-2, the embodiment of the present application provides a friction treatment device for an emulsified asphalt cold-recycling mixture preparation process, comprising: the friction treatment device includes: the device comprises a roller 1, wherein one end of the roller 1 is provided with a feeding hole 101, the feeding hole 101 is used for feeding crushed and screened waste asphalt pavements, and the other end of the roller 1 is provided with a discharging hole; the partition plates 2 are annularly arranged on the inner wall of the roller 1 at intervals and are arranged along the axial direction of the roller 1, and a plurality of strip-shaped channels are formed on the inner wall of the roller 1; the friction rollers 3 are of solid cylindrical structures and are arranged between the feed inlet 101 and the partition plates 2, and protrusions are arranged on the surfaces of the friction rollers 3 and the partition plates 2; the roller 1 is obliquely arranged, the position of the feed port 101 is higher than that of the discharge port, gear teeth 102 are arranged on the outer surface of the roller 1, the gear teeth 102 are meshed with a driving gear, and the driving gear is in power connection with a motor; the inclination angle of the roller 1 is 15 degrees; the inner diameter of the roller 1 is 100 cm, the outer diameter of the friction roller 3 is 20 cm, the number of the friction rollers 3 is three, and the mass of each friction roller 3 is 100 kg.
The embodiment of the application also provides the emulsified asphalt cold-recycling mixture which is prepared by the preparation process of the emulsified asphalt cold-recycling mixture.
The following examples are given by way of illustration.
Example 1:
the preparation process of the emulsified asphalt cold-recycling mixture comprises the following steps: step 1: crushing, screening and rubbing the waste asphalt pavement to obtain an asphalt pavement recycling material, wherein the waste asphalt pavement is crushed to an average particle size of 10-15 mm; step 2: preparing emulsified asphalt by adopting the prior art; and step 3: adding 8 parts of grease into 100 parts of the asphalt pavement recycling material, uniformly stirring, adding 8 parts of emulsified asphalt, 10 parts of broken stone and 2 parts of cement, uniformly stirring, and finally adding 10 parts of water, and uniformly stirring to obtain the emulsified asphalt cold-recycling mixture; the oil can be selected from turpentine; the average particle size of the crushed stone is 10-30 mm;
performing a rubbing treatment for 120 minutes using a rubbing treatment apparatus including: the device comprises a roller, a first conveying device and a second conveying device, wherein one end of the roller is provided with a feeding hole, the feeding hole is used for feeding crushed and screened waste asphalt pavements, and the other end of the roller is provided with a discharging hole; the partition plates are arranged on the inner wall of the roller in a spacing ring mode and are arranged along the axial direction of the roller, and a plurality of strip-shaped channels are formed in the inner wall of the roller; the friction rollers are of solid cylindrical structures and are arranged between the feed inlet and the partition plates, and protrusions are arranged on the surfaces of the friction rollers and the partition plates; the roller is obliquely arranged, the position of the feed port is higher than that of the discharge port, gear teeth are arranged on the outer surface of the roller and are meshed with a driving gear, and the driving gear is in power connection with a motor; the inclination angle of the roller is 15 degrees; the inner diameter of the roller is 100 centimeters, the outer diameter of the friction roller is 20 centimeters, the number of the friction rollers is three, and the mass of each friction roller is 100 kg.
The emulsified asphalt is prepared from the following raw materials in parts by weight: 70 parts of matrix asphalt, 5 parts of emulsifier, 40 parts of water and 3 parts of SBS.
Example 2:
the preparation process of the emulsified asphalt cold-recycling mixture comprises the following steps: step 1: crushing, screening and rubbing the waste asphalt pavement to obtain an asphalt pavement recycling material, wherein the waste asphalt pavement is crushed to an average particle size of 10-15 mm; step 2: preparing emulsified asphalt by adopting the prior art; and step 3: adding 5-8 parts of grease into 100 parts of the asphalt pavement recycling material, uniformly stirring, adding 5 parts of emulsified asphalt, 8 parts of broken stone and 1 part of cement, uniformly stirring, and finally adding 5-10 parts of water, and uniformly stirring to obtain the emulsified asphalt cold-recycling mixture; the oil can be selected from turpentine; the average particle size of the crushed stone is 10-30 mm;
rubbing treatment was performed for 60 minutes using a rubbing treatment apparatus having the same structure as in example 1;
the emulsified asphalt is prepared from the following raw materials in parts by weight: 60 parts of matrix asphalt, 2 parts of emulsifier, 30 parts of water and 2 parts of SBS.
Example 3:
the preparation process of the cold recycled emulsified asphalt mixture comprises the following steps: step 1: crushing, screening and rubbing the waste asphalt pavement to obtain an asphalt pavement recycling material, wherein the waste asphalt pavement is crushed to an average particle size of 10-15 mm; step 2: preparing emulsified asphalt by adopting the prior art; and step 3: adding 6 parts of grease into 100 parts of the asphalt pavement recycling material, uniformly stirring, adding 6 parts of emulsified asphalt, 8 parts of broken stone and 1 part of cement, uniformly stirring, adding 6 parts of water, and uniformly stirring to obtain the emulsified asphalt cold-recycling mixture; the oil is turpentine; the average particle size of the crushed stone is 10-30 mm;
performing a rubbing treatment for 90 minutes using a rubbing treatment apparatus having the same structure as in example 1;
the emulsified asphalt is prepared from the following raw materials in parts by weight: 65 parts of matrix asphalt, 4 parts of emulsifier, 35 parts of water and 3 parts of SBS.
Comparative example 1:
the waste asphalt pavement is broken to have an average particle size of 5-10 mm without friction treatment, and the rest parameters and preparation process are the same as those in example 3.
Comparative example 2:
in the step 3, the asphalt pavement recycling material, grease, emulsified asphalt, crushed stone and cement are directly mixed and stirred, and other parameters and preparation processes are the same as those in the example 3.
And (3) testing:
and (3) taking the emulsified asphalt cold-recycling mixture obtained in the examples 1-3 and the comparative examples 1-2, preparing a test piece according to the test procedure of JTG E20-2011 road engineering asphalt and asphalt mixture, and detecting each property of the test piece.
Table 1 shows the void ratios of the test pieces of each example and comparative example
Table 2 shows the cleavage strength of each of the test pieces of examples and comparative examples
| Item | Cleavage Strength/MPa at 15 ℃ |
| Example 1 | 0.75 |
| Example 2 | 0.74 |
| Example 3 | 0.75 |
| Comparative example 1 | 0.49 |
| Comparative example 2 | 0.58 |
As can be seen from tables 1 and 2, compared with examples 1-3, the void ratio of the test piece of comparative examples 1-2 is obviously higher, and the splitting strength is lower, which indicates that the friction treatment and friction treatment device can change the surface structure of the asphalt pavement recycling material, improve the cohesiveness of the asphalt pavement recycling material and emulsified asphalt, further reduce the void ratio and improve the splitting strength.
The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the emulsified asphalt cold-recycled mix and the preparation process of the present invention will be apparent to those skilled in the art.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (9)
1. The preparation process of the emulsified asphalt cold-recycling mixture is characterized by comprising the following steps of:
step 1: crushing, screening and rubbing the waste asphalt pavement to prepare an asphalt pavement recycling material;
step 2: preparing emulsified asphalt;
and step 3: and uniformly mixing 100 parts of the asphalt pavement recycling material, 5-8 parts of emulsified asphalt, 8-10 parts of broken stone, 1-2 parts of cement, 5-8 parts of grease and 5-10 parts of water to obtain the emulsified asphalt cold recycling mixture.
2. The preparation process of the emulsified asphalt cold-recycling mixture according to claim 1, wherein the waste asphalt pavement is crushed to an average particle size of 10-15 mm.
3. The preparation process of the emulsified asphalt cold-recycling mixture according to claim 1, wherein a friction treatment device is used for friction treatment, the friction treatment time is 60-120 minutes, and the friction treatment device comprises:
one end of the roller is provided with a feeding hole, the feeding hole is used for feeding crushed and screened waste asphalt pavements, and the other end of the roller is provided with a discharging hole;
the partition plates are arranged on the inner wall of the roller in a spacing ring mode and are arranged along the axial direction of the roller, and a plurality of strip-shaped channels are formed in the inner wall of the roller;
the friction rollers are of solid cylindrical structures and arranged between the feed inlet and the partition plates, and the friction rollers and the partition plates are multiple in surface and are provided with protrusions.
4. The process for preparing the emulsified asphalt cold-recycling mixture as claimed in claim 3, wherein the roller is arranged obliquely, the position of the feed inlet is higher than that of the discharge outlet, gear teeth are arranged on the outer surface of the roller, the gear teeth are meshed with a driving gear, and the driving gear is in power connection with a motor.
5. The process for preparing an emulsified asphalt cold-recycling mix according to claim 3, wherein the inner diameter of the drum is 100 cm, the outer diameter of the rubbing roll is 20 cm, the number of the rubbing rolls is three, and the mass of each rubbing roll is 100 kg.
6. The process for preparing the emulsified asphalt cold recycled mixture according to claim 3, wherein the emulsified asphalt is prepared from the following raw materials in parts by weight:
60-70 parts of matrix asphalt, 2-5 parts of emulsifier, 30-40 parts of water and 2-3 parts of SBS.
7. The process for preparing an emulsified asphalt cold-recycling mix according to claim 3, wherein in the step 3: and adding 5-8 parts of grease into 100 parts of the asphalt pavement recycling material, uniformly stirring, adding 5-8 parts of emulsified asphalt, 8-10 parts of broken stone and 1-2 parts of cement, uniformly stirring, and finally adding 5-10 parts of water, and uniformly stirring to obtain the emulsified asphalt cold-recycling mixture.
8. A friction treatment device for the emulsified asphalt cold-recycling mixture preparation process according to any one of claims 1 to 7, characterized by comprising: the device comprises a roller, a first conveying device and a second conveying device, wherein one end of the roller is provided with a feeding hole, the feeding hole is used for feeding crushed and screened waste asphalt pavements, and the other end of the roller is provided with a discharging hole; the partition plates are arranged on the inner wall of the roller in a spacing ring mode and are arranged along the axial direction of the roller, and a plurality of strip-shaped channels are formed in the inner wall of the roller; the friction rollers are of solid cylindrical structures and are arranged between the feed inlet and the partition plates, and protrusions are arranged on the surfaces of the friction rollers and the partition plates; the roller is obliquely arranged, the position of the feed port is higher than that of the discharge port, gear teeth are arranged on the outer surface of the roller and are meshed with a driving gear, and the driving gear is in power connection with a motor; the inner diameter of the roller is 100 centimeters, the outer diameter of the friction roller is 20 centimeters, the number of the friction rollers is three, and the mass of each friction roller is 100 kg.
9. The emulsified asphalt cold-recycling mixture is characterized by being prepared by the preparation process of the emulsified asphalt cold-recycling mixture according to any one of claims 1 to 7.
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| CN212820193U (en) * | 2020-07-23 | 2021-03-30 | 四川聚信银丰实业有限公司 | Use crushing roller in pitch breaker |
| CN213467945U (en) * | 2020-08-06 | 2021-06-18 | 邯郸市卓然再生资源科技有限公司 | Waste asphalt mixture crushing equipment |
| CN112248302A (en) * | 2020-09-15 | 2021-01-22 | 福建省铁拓机械股份有限公司 | Refrigeration type regeneration refined separation asphalt system and production process thereof |
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