CN114855549B - 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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- CN114855549B CN114855549B CN202210385651.1A CN202210385651A CN114855549B CN 114855549 B CN114855549 B CN 114855549B CN 202210385651 A CN202210385651 A CN 202210385651A CN 114855549 B CN114855549 B CN 114855549B
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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
-
- 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
-
- 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 application discloses a preparation process of an emulsified asphalt cold-recycling mixture, which comprises the following steps: step 1: crushing, screening and rubbing waste asphalt pavement to prepare an asphalt pavement recycling material; step 2: preparing emulsified asphalt; step 3: and mixing 100 parts of the asphalt pavement recycling material, 5-8 parts of the emulsified asphalt, 8-10 parts of broken stone, 1-2 parts of cement, 5-8 parts of grease and 5-10 parts of water uniformly to obtain the emulsified asphalt cold-recycling mixture. The application also provides an emulsified asphalt cold-recycling mixture. The application improves the adhesiveness of the asphalt pavement recycling material and the emulsified asphalt and improves the road performance of the emulsified asphalt cold-recycling mixture.
Description
Technical Field
The application relates to the technical field of road materials. More particularly, the application relates to an emulsified asphalt cold-recycling mixture and a preparation process thereof.
Background
The emulsified asphalt can regenerate waste asphalt pavement materials for reuse, and has the advantages of saving resources, protecting environment, reducing 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 of the emulsified asphalt and the waste asphalt pavement material.
Disclosure of Invention
The application aims to provide an emulsified asphalt cold-recycling mixture and a preparation process thereof, wherein the adhesiveness between an asphalt pavement recycling material and emulsified asphalt is improved by crushing, screening and friction treatment on waste asphalt pavement, and the road performance of the emulsified asphalt cold-recycling mixture is improved.
To achieve these objects and other advantages and in accordance with the purpose of the application, as embodied and broadly described herein, there is provided a process for preparing an emulsified asphalt cold-recycling mixture, comprising: step 1: crushing, screening and rubbing waste asphalt pavement to prepare an asphalt pavement recycling material; step 2: preparing emulsified asphalt; step 3: and mixing 100 parts of the asphalt pavement recycling material, 5-8 parts of the emulsified asphalt, 8-10 parts of broken stone, 1-2 parts of cement, 5-8 parts of grease and 5-10 parts of water uniformly to obtain the emulsified asphalt cold-recycling mixture.
Further, the waste asphalt pavement is crushed until the average grain diameter is 10-15 mm.
Further, the friction treatment is performed using a friction treatment device for 60 to 120 minutes, the friction treatment device comprising: one end of the roller is provided with a feed inlet which is used for throwing in crushed and screened waste asphalt pavement, and the other end of the roller is provided with a discharge outlet; the plurality of partition plates are arranged on the inner wall of the roller in a spacing ring mode, are arranged along the axial direction of the roller, and form a plurality of strip-shaped channels on the inner wall of the roller; the friction rollers are of solid cylindrical structures, are arranged between the feeding hole and the partition plates, and are provided with protrusions on the surfaces.
Further, the cylinder is inclined, and the position of the feed inlet is higher than the position of the discharge outlet, the outer surface of the cylinder is provided with gear teeth, the gear teeth are meshed with a driving gear, and the driving gear is in power connection with a motor.
Further, the inner diameter of the drum 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 100kg.
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, uniformly stirring, thus obtaining the emulsified asphalt cold-recycling mixture.
According to another aspect of the present application, there is provided a friction treatment device for an emulsified asphalt cold-recycling mixture preparation process, comprising: one end of the roller is provided with a feed inlet which is used for throwing in crushed and screened waste asphalt pavement, and the other end of the roller is provided with a discharge outlet; the plurality of partition plates are arranged on the inner wall of the roller in a spacing ring mode, are arranged along the axial direction of the roller, and form a plurality of strip-shaped channels on the inner wall of the roller; the friction rollers are of solid cylindrical structures, are arranged between the feeding hole and the partition plates, and are provided with bulges on the surfaces; the roller is obliquely arranged, 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, the gear teeth 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 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 100kg.
According to another aspect of the application, the application provides an emulsified asphalt cold-recycling mixture, which is prepared by the preparation process of the emulsified asphalt cold-recycling mixture.
The application at least comprises the following beneficial effects:
according to the application, the waste asphalt pavement is crushed, screened and rubbed, so that the ageing layer of the asphalt pavement recycling material is damaged, the interface structure of asphalt pavement recycling material particles is changed, the adhesiveness between the asphalt pavement recycling material particles and emulsified asphalt is improved, the road performance of the emulsified asphalt cold-recycling mixture is improved, the generation of cracks, ruts and other diseases is reduced, and the service life of the pavement is prolonged.
Additional advantages, objects, and features of the application 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 application.
Drawings
FIG. 1 is a schematic view of a friction treatment device according to the present application;
fig. 2 is a schematic view of the structure of the separator and the friction roller of the present application.
Detailed Description
The present application is described in further detail below with reference to the drawings to enable those skilled in the art to practice the application by referring to the description.
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 the 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 particles and emulsified asphalt, and reduce the void ratio; step 2: preparing emulsified asphalt by adopting the prior art; step 3: taking 100 parts of the asphalt pavement recycling material, 5-8 parts of the emulsified asphalt, 8-10 parts of broken stone, 1-2 parts of cement, 5-8 parts of grease and 5-10 parts of water, and uniformly mixing to obtain the emulsified asphalt cold-recycling mixture; optionally, 100 parts of asphalt pavement recycling material, 6 parts of emulsified asphalt, 8 parts of crushed 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 crushing to a smaller particle size, and the particles of the waste asphalt pavement are further reduced during the subsequent friction treatment.
In other embodiments, the friction treatment is performed using a friction treatment device for a time period of 60 to 120 minutes, optionally 90 minutes, the friction treatment device comprising: one end of the roller is provided with a feed inlet which is used for throwing in crushed and screened waste asphalt pavement, and the other end of the roller is provided with a discharge outlet; the plurality of partition plates are arranged on the inner wall of the roller in a spacing ring mode, are arranged along the axial direction of the roller, and form a plurality of strip-shaped channels on the inner wall of the roller; the friction rollers are of solid cylindrical structures, are arranged between the feeding hole and the partition plates, and are provided with bulges on the surfaces; the roller can rotate around the self shaft, the friction roller is arranged in the roller, and when the roller rotates, the friction roller can roll in the roller, so that the surface bulges of the friction roller rub and roll the waste asphalt pavement material to damage the surface ageing layer of the waste asphalt pavement material; the partition plates are arranged along the axial direction of the roller, a plurality of strip-shaped channels are formed by the partition plates at intervals, as shown in fig. 2, waste asphalt pavement materials treated by the friction roller are further extruded into the strip-shaped channels to be rubbed, and then discharged out of the roller; the friction treatment time can be adjusted by setting the rotational speed of the drum.
In other embodiments, the roller is obliquely arranged, the position of the feeding hole is higher than that of the discharging hole, the outer surface of the roller is provided with gear teeth, 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 deviated, so that the waste asphalt pavement material can gradually move from the feeding hole to the discharging hole.
In other embodiments, there are provided optional size and quality parameters of a cylinder, a friction roller, the inner diameter of the cylinder being 100 cm, the outer diameter of the friction roller being 20 cm, the number of friction rollers being three, the mass of each friction roller being 100kg.
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 matrix asphalt to 100-120 ℃, adding SBS, reacting for 3 hours, dissolving an emulsifier with water, mixing with the matrix asphalt modified by SBS, and performing high-speed shearing and emulsification to obtain emulsified asphalt; the emulsifier is cationic quaternary ammonium salt emulsifier.
In other embodiments, in the step 3: taking 100 parts of the asphalt pavement recycling material, adding 5-8 parts of grease, 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, uniformly stirring to obtain the emulsified asphalt cold-recycling mixture; the oil is oleum Terebinthinae.
As shown in fig. 1 to 2, an embodiment of the present application provides a friction treatment device for an emulsified asphalt cold-recycling mixture preparation process, comprising: the friction processing device includes: one end of the roller 1 is provided with a feed inlet 101, the feed inlet 101 is used for throwing crushed and screened waste asphalt pavement, and the other end of the roller 1 is provided with a discharge outlet; a plurality of partition boards 2, wherein the partition boards 2 are arranged on the inner wall of the roller 1 in a spacing and annular manner, are arranged along the axial direction of the roller 1, and form a plurality of strip-shaped channels on the inner wall of the roller 1; the friction rollers 3 are in a solid cylindrical structure, are arranged between the feeding hole 101 and the partition plates 2, and are provided with bulges on the surfaces of the friction rollers 3 and the partition plates 2; the roller 1 is obliquely arranged, the position of the feeding hole 101 is higher than that of the discharging hole, 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 100kg.
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 is a description of specific examples.
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 prepare an asphalt pavement recycling material, wherein the waste asphalt pavement is crushed until the average grain diameter is 10-15 mm; step 2: preparing emulsified asphalt by adopting the prior art; step 3: taking 100 parts of the asphalt pavement recycling material, adding 8 parts of grease, 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, uniformly stirring to obtain the emulsified asphalt cold-recycling mixture; the oil is turpentine; the average grain diameter of the crushed stone is 10-30 mm;
friction treatment was performed using a friction treatment device for 120 minutes, the friction treatment device comprising: one end of the roller is provided with a feed inlet which is used for throwing in crushed and screened waste asphalt pavement, and the other end of the roller is provided with a discharge outlet; the plurality of partition plates are arranged on the inner wall of the roller in a spacing ring mode, are arranged along the axial direction of the roller, and form a plurality of strip-shaped channels on the inner wall of the roller; the friction rollers are of solid cylindrical structures, are arranged between the feeding hole and the partition plates, and are provided with bulges on the surfaces; the roller is obliquely arranged, 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, the gear teeth 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 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 100kg.
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 prepare an asphalt pavement recycling material, wherein the waste asphalt pavement is crushed until the average grain diameter is 10-15 mm; step 2: preparing emulsified asphalt by adopting the prior art; step 3: taking 100 parts of the asphalt pavement recycling material, adding 5-8 parts of grease, 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, uniformly stirring to obtain the emulsified asphalt cold-recycling mixture; the oil is turpentine; the average grain diameter of the crushed stone is 10-30 mm;
the friction treatment was performed using a friction treatment device having the same structure as in example 1 for 60 minutes;
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 emulsified asphalt cold-recycling mixture comprises the following steps: step 1: crushing, screening and rubbing the waste asphalt pavement to prepare an asphalt pavement recycling material, wherein the waste asphalt pavement is crushed until the average grain diameter is 10-15 mm; step 2: preparing emulsified asphalt by adopting the prior art; 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, and finally adding 6 parts of water, uniformly stirring to obtain the emulsified asphalt cold-recycling mixture; the oil is turpentine; the average grain diameter of the crushed stone is 10-30 mm;
the friction treatment was performed using a friction treatment device having the same structure as in example 1 for 90 minutes;
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 friction treatment was not performed, and the waste asphalt pavement was crushed to an average particle size of 5 to 10 mm, and the remaining parameters and preparation process were the same as in example 3.
Comparative example 2:
in the step 3, the asphalt pavement recycling material, grease, emulsified asphalt, broken stone and cement are directly mixed and stirred, and the rest parameters and the preparation process are the same as those of the example 3.
And (3) testing:
taking the emulsified asphalt cold-recycling mixtures obtained in examples 1-3 and comparative examples 1-2, preparing test pieces according to JTG E20-2011 highway engineering asphalt and asphalt mixture test procedures, and detecting each performance of the test pieces.
Table 1 shows void fractions of test pieces of examples and comparative examples
Table 2 shows the cleavage strength of the test pieces of each of the examples and comparative examples
| Project | 15 ℃ cleavage strength/MPa |
| 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, the test pieces of comparative examples 1 to 2 have significantly higher void ratios and lower splitting strengths than those of examples 1 to 3, indicating that the friction treatment and friction treatment device of the present application can change the surface structure of the asphalt pavement recycling material, promote adhesion with emulsified asphalt, and thus reduce void ratios and promote splitting strengths.
The number of equipment and the scale of processing described herein are intended to simplify the description of the present application. The use, modification and variation of the emulsified asphalt cold-recycling mixture and the preparation process of the present application will be apparent to those skilled in the art.
Although embodiments of the present application have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the application would be readily apparent to those skilled in the art, and accordingly, the application is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (7)
1. The preparation process of the emulsified asphalt cold-recycling mixture is characterized by comprising the following steps:
step 1: crushing, screening and rubbing waste asphalt pavement to prepare an asphalt pavement recycling material;
step 2: preparing emulsified asphalt;
step 3: taking 100 parts of the asphalt pavement recycling material, 5-8 parts of the emulsified asphalt, 8-10 parts of broken stone, 1-2 parts of cement, 5-8 parts of grease and 5-10 parts of water, and uniformly mixing to obtain the emulsified asphalt cold-recycling mixture;
crushing the waste asphalt pavement until the average grain diameter is 10-15 mm;
friction treatment is carried out by using a friction treatment device, the friction treatment time is 60-120 minutes, and the friction treatment device comprises:
one end of the roller is provided with a feed inlet which is used for throwing in crushed and screened waste asphalt pavement, and the other end of the roller is provided with a discharge outlet;
the plurality of partition plates are arranged on the inner wall of the roller in a spacing ring mode, are arranged along the axial direction of the roller, and form a plurality of strip-shaped channels on the inner wall of the roller;
the friction rollers are of solid cylindrical structures, are arranged between the feeding hole and the partition plates, and are provided with protrusions on the surfaces.
2. The process for preparing the emulsified asphalt cold-recycling mixture as set forth in claim 1, wherein the drum is disposed obliquely, and the position of the feed inlet is higher than the position of the discharge outlet, and the drum is provided with gear teeth on the outer surface, the gear teeth being engaged with a driving gear, and the driving gear being in power connection with a motor.
3. The process for preparing an emulsified asphalt cold-recycling mixture as set forth in claim 1, wherein the inner diameter of said drum is 100 cm, the outer diameter of said friction roller is 20 cm, the number of said friction rollers is three, and the mass of each of said friction rollers is 100kg.
4. The process for preparing an emulsified asphalt cold-recycling mixture according to claim 1, 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.
5. The process for preparing an emulsified asphalt cold-recycling mixture as set forth in claim 1, wherein in said 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, uniformly stirring, thus obtaining the emulsified asphalt cold-recycling mixture.
6. A friction treatment device for use in the process for producing an emulsified asphalt cold recycling mixture according to any one of claims 1 to 5, comprising: one end of the roller is provided with a feed inlet which is used for throwing in crushed and screened waste asphalt pavement, and the other end of the roller is provided with a discharge outlet; the plurality of partition plates are arranged on the inner wall of the roller in a spacing ring mode, are arranged along the axial direction of the roller, and form a plurality of strip-shaped channels on the inner wall of the roller; the friction rollers are of solid cylindrical structures, are arranged between the feeding hole and the partition plates, and are provided with bulges on the surfaces; the roller is obliquely arranged, 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, the gear teeth 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 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 100kg.
7. The emulsified asphalt cold-recycling mixture is characterized by being prepared by the preparation process of the emulsified asphalt cold-recycling mixture as set forth in any one of claims 1 to 6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210385651.1A CN114855549B (en) | 2022-04-13 | 2022-04-13 | Emulsified asphalt cold-recycling mixture and preparation process thereof |
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| CN202210385651.1A CN114855549B (en) | 2022-04-13 | 2022-04-13 | Emulsified asphalt cold-recycling mixture and preparation process thereof |
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| CN114855549A (en) | 2022-08-05 |
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