CN110396884A - A kind of intelligent bituminous road surface of prefabricated blanket type and preparation method thereof - Google Patents
A kind of intelligent bituminous road surface of prefabricated blanket type and preparation method thereof Download PDFInfo
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- CN110396884A CN110396884A CN201910672084.6A CN201910672084A CN110396884A CN 110396884 A CN110396884 A CN 110396884A CN 201910672084 A CN201910672084 A CN 201910672084A CN 110396884 A CN110396884 A CN 110396884A
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- prefabricated
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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
- E01C5/00—Pavings made of prefabricated single units
- E01C5/12—Pavings made of prefabricated single units made of units with bituminous binders or from bituminous material, e.g. asphalt mats
-
- 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
-
- 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
- C04B2111/50—Flexible or elastic materials
- C04B2111/506—Bendable material
Abstract
The present invention relates to a kind of prefabricated intelligent bituminous road surfaces of blanket type and preparation method thereof, including rollable asphalt concrete layer and at least one intelligent aggregate unit, the intelligent aggregate unit is placed in the rollable asphalt concrete layer in a manner of being embedded in.The present invention provides a kind of blanket type bituminous pavements of pre-buried intelligence sensor unit, realize the quick reparation of bituminous pavement, and by the road surface dynamic response under monitoring Vehicle Load, traffic information is parsed, merging for rapid curing and wisdom traffic technology is realized.
Description
Technical field
The present invention relates to field of road, and in particular to a kind of intelligent bituminous road surface of prefabricated blanket type and its preparation side
Method.
Background technique
Under the overall background developed with the quickening of Urbanization in China and wisdom traffic, urban road carrying is excessive, needs
Want high-frequency road maintenance and repairing.And traditional method for repairing and mending maintenance time is long, cost is high, not only causes serious traffic
Congestion also hinders the realization and development of wisdom traffic.Due to realizing that wisdom traffic needs to install big quantity sensor in the road,
And rough formula pavement construction technique can bring great threat to sensor, gently then influence the acquisition precision of sensor, it is heavy then can
Make sensor failure.
Common road monitoring system can be divided into embedded and non-embedded two major classes.Common road monitoring system can divide
For embedded and non-embedded two major classes.Non-embedded monitoring technology is commonly used in traffic information monitoring, non-embedded monitoring skill
Art, including pneumatic tube, video camera, ultrasonic system, infrared ray and radar system, but non-embedded monitoring can not obtain car weight letter
Breath and the influence vulnerable to weather and artificial destruction.Sensor used by Embedded Monitoring System includes fiber grating strain
It is sensor, ess-strain (piece) sensor, pressure sensor, quartz piezoelectric sensor, displacement sensor, temperature sensor, wet
Spend sensor.These sensors are usually embedded in road, and monitoring data are transferred to acquisition equipment by cable.Due to
The function that the sensor of front end is only used for sensing without data processing and storage, so that a large amount of monitoring data are difficult to locate in real time
Reason, leads to communication blockage and data redundancy.Due to needing to be equipped with high power consumption, high-cost adapter and data acquisition equipment, make
The system of obtaining installation, operation are high with maintenance cost.In addition, these sensors, which are embedded in, destroys the complete of road structure in road surface
Property, with the increase of monitoring duration, the monitoring accuracy of system can be reduced.In addition, most popular application in embedded monitoring technology
For Dynamic Weighing Technology, such as bended plate type dynamic weighing system and piezoelectric type dynamic weighing system.The rigidity of these system road pavements
There is very high requirement with flatness, in use, needing to carry out Pavement Improvement on bituminous pavement, increases construction and maintain into
This.
In recent years, with the development of computer communication technology, Internet technology and sensing technology, having scholar to develop can
MEMS sensor applied to field of road.It is chosen however, MEMS sensor is applied to real road and is monitored there are many
War, it is necessary to consider that the freeze thawing in the short-term effects such as high temperature, humidity, the corrosive environment in construction and real road structure follows
Ring, vehicular load etc. influence for a long time, it is necessary to consider the communication and energy supply problem of sensor.By prefabricating technique, on road
Before face is mated formation, by sensor together with road structure perfect combination, it can not only be passed to avoid caused by rough formula pavement construction
Sensor damage, moreover it is possible to the protection packaging of accurate control sensor installation position and energy communication element.
Currently, China is also seldom to the research of such technology.Rapid curing may be implemented it is urgent to provide one kind and wisdom is handed over
The fusion of logical technology.
Summary of the invention
In view of the deficiencies in the prior art and insufficient, the present invention provides a kind of prefabricated intelligent bituminous road surfaces of blanket type
And preparation method thereof.It realizes the quick reparation of bituminous pavement, and passes through the road surface dynamic response under monitoring Vehicle Load, solution
Traffic information is precipitated.
The purpose of the present invention is to provide a kind of prefabricated intelligent bituminous road surfaces of blanket type, including rollable asphalt concrete layer
With at least one intelligent aggregate unit, the intelligent aggregate unit is placed in the rollable asphalt concrete layer in a manner of being embedded in
In.The present invention provides a kind of " blanket type " bituminous pavement pave-load layer of prefabrication, can roll up as volume carpet after prefabricated
It rises and stacks, and in-site installation Shi Zeru spreads out the same laying construction of carpet, during traditional asphalt pavement maintenance
Heat the processes such as mix, transport, roll and cool down, realize road surface ready coating reparation and rapid open to traffic.In addition, in "
In blanket " bituminous pavement prefabrication process, sensor is embedded in pavement structure in advance, caused by avoiding rough formula pavement construction
Sensor degradation and pavement destruction.The bituminous pavement pave-load layer of insertion sensor will be provided with from perceptional function, can not only perceive road
Telecommunication flow information on face, including speed, car weight, vehicle etc., additionally it is possible to perceive pave-load layer inside configuration state, realize bus or train route letter
The integration prison detection of breath.
Some preferred embodiments according to the present invention, in parts by weight, the rollable asphalt concrete layer include such as
Lower raw material are prepared: 4.5-12 parts of pitches, 80-95 parts of mineral aggregates, 0.6-8 parts of modifying agent and 0.005-0.02 parts of fibers；It is excellent
It is selected as 8-12 parts of pitches, 82-90 parts of mineral aggregates, 5-8 parts of modifying agent and 0.01-0.02 parts of fibers；Wherein, the pitch is matrix drip
Green or SBS modified pitch.
Some preferred embodiments according to the present invention, the nominal maximum particle diameter of the mineral aggregate be 4.75mm, 9.5mm or
13.2mm, preferably 9.5mm；The gradation of the mineral aggregate is 13.2mm100%, 9.5mm 92%-100%, 4.75mm 60%-
70%, 2.36mm 40%-50%, 1.18mm 20%-30%, 0.3mm 10%-15%, 0.15mm 5%-10%,
0.075mm5%-8%.
Some preferred embodiments according to the present invention, the modifying agent include thermoplastic elastomer (TPE) and flow ability modifying agent,
Wherein, the weight ratio of the thermoplastic elastomer (TPE) and the flow ability modifying agent is 28-80:20-72, preferably 50-80:20-50.
Some preferred embodiments according to the present invention, the thermoplastic elastomer (TPE) is in SBS, POE, EVA and PO
It is one or more, it is preferably SBS:EVA=60-80:20-40 with weight ratio meter；
And/or it is the resin, wax and softening agent of 25-55:4-12:8-30 that the flow ability modifying agent, which is with weight ratio meter, it is excellent
It is selected as 40-50:4-8:20-30.
Some preferred embodiments according to the present invention, the resin are the Petropols of C5 or C9, preferably C5 petroleum
Resin；And/or the softening agent is selected from naphthenic oil, raffinates oil, rubber oil, tung oil, castor oil, corn oil, soybean oil, vegetable seed
One of oil, linseed oil, sunflower oil and palm oil are a variety of；Preferably naphthenic oil；And/or the wax be husky rope wax and/
Or PE wax, preferably PE wax.
Some preferred embodiments according to the present invention, the mineral aggregate include coarse aggregate, fine aggregate and miberal powder；Wherein, institute
Stating coarse aggregate is basalt and/or diabase；The fine aggregate is limestone；The miberal powder is limestone mineral powder；And/or institute
It states fiber and is selected from one of lignin fibre, polyester fiber and basalt fibre or a variety of.
Some preferred embodiments according to the present invention, the length of every rollable asphalt concrete layer of volume are 10m-200m,
Width is 0.1m-3.75m, with a thickness of 25mm-50mm；Preferably, length 10m-50m, width 1m-3.75m, with a thickness of
30mm-40mm。
Some preferred embodiments according to the present invention, the intelligent aggregate unit are cylindrical square or rectangular
Shape shape, preferably cylindrical, a diameter of 50-80mm, a height of 20-50mm.
Some preferred embodiments according to the present invention, the intelligent aggregate unit is along the rollable asphalt concrete layer
Length direction it is evenly distributed；Preferably, the distance between described intelligent aggregate unit is 200mm-500mm.
Some preferred embodiments according to the present invention, the intelligent aggregate unit include sensing element, power supply component, meter
Calculate element, communication device and set on external package parts.The present invention can be realized road surface vibration using above-mentioned intelligent aggregate unit
The dynamic monitoring with temperature, has resistance to compression, waterproof, low-power consumption, high-precision characteristic, can be realized speed, axle, vehicle, traffic
The monitoring of flow.
Some preferred embodiments according to the present invention, the sensing element include stress strain gauge, acceleration biography
Sensor and Temperature Humidity Sensor include road surface by force information, structural vibration information and temperature and humidity information for perceiving；The power supply
Element uses the piezoelectric energy-storage unit and battery of integrated form, real for converting electric energy for the mechanical energy of vehicular load and storing
Existing unit self-powered, provides electric energy for each component；The computing element uses microprocessor unit, embeds pretreatment and calculates
Method realizes filtering and noise reduction and characteristics extraction to perception data, and realizes that automated communications trigger mechanism is cut with operational mode
The system of changing planes；The communication device uses the self-defining communication protocol of wireless radio frequency circuit technology and low frequency, realizes regional area
Wireless communication, the data of the intelligent aggregate unit are wirelessly transmitted in the receiving device in roadside；The package parts use
Cement-based material, for protecting all kinds of components in the intelligent aggregate unit.In the present invention, the automated communications triggering
Mechanism is based on the considerations of reducing energy consumption, and the communication device in intelligent aggregate unit is not communicated with receiving device in real time, and
It is that signal fluctuation, triggering communication are generated under Vehicle Load when vehicle is by road surface, intelligent aggregate unit sends information
Into receiving device.The operational mode handover mechanism refers to that intelligent aggregate unit has more suspend mode and operation both of which,
It is set for pattern switching according to the time, as in the night, node is in suspend mode, and on daytime, node is in operational mode.
It is a further object of the present invention to provide a kind of preparation method for preparing the intelligent bituminous road surface of prefabricated blanket type,
Include the following steps:
(1) raw material of rollable bituminous concrete are mixed, is stirred evenly, by rolling, form rollable drip
Green concrete layer；
(2) road is embedded in prefabricated rollable asphalt concrete layer with intelligent aggregate unit；
(3) rollable asphalt concrete layer the intelligent bituminous surface layer of prefabricated blanket type is wound into roll up；
(4) the intelligent bituminous road surface of prefabricated blanket type is formed after paving.
Beneficial effects of the present invention at least that: the present invention can not only shorten the pavement maintenance time, alleviate traffic congestion,
It can also be realized simultaneously from perception functional surface technology, realize intelligent road surface.The present invention is broken through on material and technique, is ground
High-performance cementitious matter processed, and blanket type bituminous pavement prefabricating technique is combined, develop pre-buried intelligence sensor unit and its data solution
Analyse algorithm.The quick Intellisense repaired with traffic information for realizing bituminous pavement, is greatly alleviated and is brought due to road maintenance
Traffic congestion, realize that wisdom traffic improves traffic transportation efficiency, also mentioned for exploitation high-quality, high-performance and specific function road surface
For technology platform.Moreover, the present invention develop have perceptional function, execute function, the road intelligence of computing function and communication function
Can sensor unit and pre-buried technique, can test evaluation sensor unit sensitivity, durability and energy consumption.The road surface of exploitation is dynamic
Force-responsive analytical algorithm parses the road surface dynamic response signal under Vehicle Load, obtains environment, traffic, road structure shape
State information.
Detailed description of the invention
Fig. 1 is the prefabricated intelligent bituminous road surface sectional view of blanket type provided by the embodiment of the present invention；
Appended drawing reference: 1- intelligent aggregate unit, 2- cutting optimal.
Specific embodiment
Following embodiment further illustrates the contents of the present invention, but should not be construed as limiting the invention.Without departing substantially from
In the case where spirit of that invention and essence, to modifications or substitutions made by the method for the present invention, step or condition, the present invention is belonged to
Range.
Unless otherwise specified, the conventional means that technological means used in embodiment is well known to those skilled in the art,
Material therefor is commercial product.
Embodiment 1
1) rollable bituminous concrete raw material are mixed
1-A) prepare modifying agent
It stocks up by following weight proportion:
It is added to after above-mentioned raw materials are mixed in double screw extruder and carries out melting mixing, then extruding pelletization, obtain grain
The particulate matter of diameter < 3mm, as modifying agent.
Wherein, the melting temperature is 120-160 DEG C.
Styrene-butadiene-styrene elastomer in the present embodiment selects the SBS 1301 of Yueyang petrochemical industry；Second
Alkene-octene copolymer elastomer selects Dupont EVA250；The C of Choice of Resin Lanzhou Petrochemical5Petropols；Wax selects Yangzhou
The technical grade PE wax of rowland new material Co., Ltd；The KN4010 naphthenic oil of softening agent selection Kelamayi oil plant.
1-B) prepare raw material according to following weight:
Modifying agent 8 gathers materials and filler 82
10 polyester fiber 0.02 of Esso matrix pitch
In the embodiment of the present invention, gather materials and be made of coarse aggregate and fine aggregate, coarse aggregate selects basalt；Fine aggregate selects stone
Limestone；Fillers selection limestone mineral powder.
Wherein, the nominal maximum particle diameter gathered materials is 9.5mm, is gathered materials as shown in table 1 below with the gradation of filler:
1 mineral aggregate gradation table of table
| Sieve pore (mm) | 13.5 | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.3 | 0.15 | 0.075 |
| Percent of pass (%) | 100 | 96 | 65 | 45 | 25 | 15 | 12 | 7 | 5 |
1-C) under agitation, modifying agent is mixed with gathering materials for preheating, is stirred evenly, form the first mixed material；
Wherein, whipping temp is 165 DEG C, mixing time 25s.
Liquid Esso matrix pitch 1-D) is added into the first mixed material, stirs evenly, forms the second mixed material；Its
In, whipping temp is 165 DEG C, mixing time 50s.
Fiber 1-E) is added into the second mixed material, stirs evenly, forms third mixed material；Wherein, whipping temp
It is 165 DEG C, mixing time 50s.
Filler 1-F) is added into third mixed material, stir evenly to get.Wherein, whipping temp is 165 DEG C, stirring
Time is 85s.
2) road intelligent aggregate unit is prepared
Road is pcb board with intelligent aggregate unit core component, equipped with MEMS acceleration transducer on pcb board
(ADXL103), AD analog-digital converter (AD7689), microprocessor (STM32L151) and wireless communication module (APC340, are penetrated
The chip of frequency IC:SX1278).In addition, being equipped with lithium ion battery is the component power supply on pcb board, using stacking-type piezoelectric patches
The pavement construction machinery energy under Vehicle Load is acquired with energy collection circuit, electric energy is converted by mechanical energy and is filled for lithium ion battery
Electricity.The geomery of intelligent aggregate should be such that intelligent aggregate unit is embedded in rollable asphalt concrete layer, not influence concrete layer
Curling.
3) prefabricated bituminous concrete topping volume and pre-buried road intelligent aggregate unit are prepared
Rollable bituminous concrete prepared by step 1) 3-A) is subjected to the processing that paves；Wherein, the temperature of processing of paving is
140℃；
It 3-B) is marked on tiled rollable asphalt concrete pavement volume, determines the pre-buried position of intelligent aggregate unit
It sets；
3-C) intelligent aggregate unit prepared by step 2) is laid to designated position, outside is sealed using cement-based material
Dress.
3-D) pave on prefabricated bituminous concrete topping volume rollable bituminous concrete, successively carries out first pressing, multiple pressure, final pressure
Processing obtains the rollable asphalt concrete layer embedded with intelligent aggregate unit；Wherein, the temperature of first pressing is 130 DEG C；The temperature pressed again
Degree is 110 DEG C；The temperature of final pressure is 50 DEG C.
Rollable asphalt concrete layer 3-E) is crimped by processing using dedicated coiled up device, obtains prefabricated bituminous coagulation
Native surface layer volume.Wherein, the temperature of curling is 10 DEG C, and the speed of curling is 0.5m/min.
3-F) by prefabricated bituminous concrete topping roll up be packaged, In Shade storage, and cover tarpaulin, waterproof cloth etc. in case
With.Every volume prefabricated bituminous concrete topping rolls up long 10m, wide 1m, thick 30mm in the present embodiment.As shown in Figure 1 the present embodiment provides
The intelligent bituminous road surface section of prefabricated blanket type, intelligent aggregate 1 be embedded in cutting optimal 2 be rollable asphalt concrete layer.The intelligence
Energy aggregate unit is cylinder, and a diameter of 50mm, a height of 20mm, the direction high along intelligent aggregate unit described in its is embedded in and can roll up
In bent asphalt concrete layer.The intelligent aggregate unit is evenly distributed along the length direction of the rollable asphalt concrete layer；
The distance between described intelligent aggregate unit is 200mm.
Embodiment 2
Except pitch is changed to SBS modified pitch, different from embodiment 1, other methods are same as Example 1.
Embodiment 3
Except gradation is nominal maximum aggregate size 4.75mm (mineral aggregate gradation is as shown in table 2), other methods different from embodiment 1
It is same as Example 1.
2 mineral aggregate gradation table of table
| Sieve pore (mm) | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.3 | 0.15 | 0.075 |
| Percent of pass (%) | 100 | 75 | 55 | 35 | 25 | 18 | 12 | 7 |
Comparative example 1
Using 70# matrix pitch, AC-13 gradation carries out mixture molding, and digging in-situ carries out pre-buried road with intelligent bone
Material unit.
Experimental example 1
By the asphalt prepared in comparative example 1 and embodiment 1-3 according to " highway engineering pitch and asphalt try
Test regulation (JTG E20-2011) " method be prepared into test specimen, be tested for the property, test result is shown in Table 3.Acquire data such as table
Shown in 4 and 5.
3 the performance test results of table
4 speed of table and wheelbase monitoring (comparative example 1)
5 speed of table and wheelbase monitoring (embodiment)
Measurement result shows: compared with comparative example, the performance of prefabricated blanket type asphalt prepared by the present invention is significant
Improve: peak load can achieve 5350N；Dynamic stability reaches 5769 times/mm；Marshall stability reaches 17.4kN.Intelligence
Aggregate unit compression strength is fully able to bear the load of actual vehicle up to 67.54Mpa.Intelligent aggregate unit can realize vehicle
The monitoring of speed and wheelbase, calculated value and measured value coincide substantially, and error is can be controlled within 4% in conventional road surface, and pre-
In standard bituminous pavement, due to the raising of construction precision, error is can be controlled within 2%.Rollable fiber prepared by the present invention
Asphalt has good fatigue resistance, heat-resisting quantity, deformation resistance.Intelligent aggregate unit can be according to different practical need
It asks and is customized, packaging method is able to bear the vehicular load of real road, and precision improves 50%.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of intelligent bituminous road surface of prefabricated blanket type, which is characterized in that including rollable asphalt concrete layer and at least one
Intelligent aggregate unit, the intelligent aggregate unit are placed in the rollable asphalt concrete layer in a manner of being embedded in.
2. the intelligent bituminous road surface of prefabricated blanket type according to claim 1, which is characterized in that in parts by weight, it is described can
Crimping asphalt concrete layer includes that following raw material are prepared: 4.5-12 parts of pitches, 80-95 parts of mineral aggregates, 0.6-8 parts of modifying agent
With 0.005-0.02 parts of fibers；Preferably 8-12 parts of pitch, 82-90 parts of mineral aggregates, 5-8 parts of modifying agent and 0.01-0.02 parts of fibers；
Wherein, the pitch is matrix pitch or SBS modified pitch.
3. the intelligent bituminous road surface of prefabricated blanket type according to claim 2, which is characterized in that the nominal of the mineral aggregate is maximum
Partial size is 4.75mm, 9.5mm or 13.2mm, preferably 9.5mm；The gradation of the mineral aggregate is 13.2mm 100%, 9.5mm
92%-100%, 4.75mm 60%-70%, 2.36mm 40%-50%, 1.18mm 20%-30%, 0.3mm 10%-
15%, 0.15mm 5%-10%, 0.075mm 5%-8%.
4. the intelligent bituminous road surface of prefabricated blanket type according to claim 2, which is characterized in that the modifying agent includes thermoplastic
Property elastomer and flow ability modifying agent, wherein the weight ratio of the thermoplastic elastomer (TPE) and the flow ability modifying agent is 28-80:20-
72, preferably 50-80:20-50；
Preferably, the thermoplastic elastomer (TPE) is selected from one of SBS, POE, EVA and PO or a variety of, preferably with weight ratio meter
For SBS:EVA=60-80:20-40；
And/or it is the resin, wax and softening agent of 25-55:4-12:8-30 that the flow ability modifying agent, which is with weight ratio meter, preferably
40-50:4-8:20-30。
5. the intelligent bituminous road surface of prefabricated blanket type according to claim 4, which is characterized in that the resin is C5's or C9
Petropols, preferably C5 Petropols；And/or the softening agent is selected from naphthenic oil, raffinates oil, rubber oil, tung oil, castor-oil plant
One of oil, corn oil, soybean oil, rapeseed oil, linseed oil, sunflower oil and palm oil are a variety of；Preferably naphthenic oil；
And/or the wax is husky rope wax and/or PE wax, preferably PE wax.
6. the prefabricated intelligent bituminous road surface of blanket type according to any one of claim 2-5, which is characterized in that the mineral aggregate
Including coarse aggregate, fine aggregate and miberal powder；Wherein, the coarse aggregate is basalt and/or diabase；The fine aggregate is lime
Rock；The miberal powder is limestone mineral powder；And/or the fiber is in lignin fibre, polyester fiber and basalt fibre
It is one or more.
7. the intelligent bituminous road surface of prefabricated blanket type according to claim 1 to 6, which is characterized in that every volume can be rolled up
The length of bent asphalt concrete layer is 10m-200m, width 0.1m-3.75m, with a thickness of 25mm-50mm；Preferably, length is
10m-50m, width 1m-3.75m, with a thickness of 30mm-40mm；
And/or the intelligent aggregate unit is cylindrical or square or rectangular, preferably cylindrical, a diameter of 50-
80mm, a height of 20-50mm；
And/or the intelligent aggregate unit is evenly distributed along the length direction of the rollable asphalt concrete layer；Preferably,
The distance between described intelligent aggregate unit is 200mm-500mm.
8. the prefabricated intelligent bituminous road surface of blanket type described in any one of -7 according to claim 1, which is characterized in that the intelligence
Aggregate unit includes sensing element, power supply component, computing element, communication device and the package parts set on outside.
9. the intelligent bituminous road surface of prefabricated blanket type according to claim 8, which is characterized in that the sensing element includes answering
Stress-strain sensor, acceleration transducer and Temperature Humidity Sensor include road surface by force information, structural vibration information for perceiving
With temperature and humidity information；
The power supply component uses the piezoelectric energy-storage unit and battery of integrated form, for converting electricity for the mechanical energy of vehicular load
It can and store, realize unit self-powered, provide electric energy for each component；
The computing element uses microprocessor unit, embeds Preprocessing Algorithm, realize to the filtering and noise reduction of perception data and
Characteristics extraction, and realize automated communications trigger mechanism and operational mode handover mechanism；
The communication device uses the self-defining communication protocol of wireless radio frequency circuit technology and low frequency, realizes the wireless of regional area
Communication, the data of the intelligent aggregate unit are wirelessly transmitted in the receiving device in roadside；
The package parts use cement-based material, for protecting all kinds of components in the intelligent aggregate unit.
10. a kind of preparation method for preparing the prefabricated intelligent bituminous road surface of blanket type as claimed in any one of claims 1-9 wherein,
It is characterized in that, includes the following steps:
(1) raw material of rollable bituminous concrete are mixed, is stirred evenly, by rolling, it is mixed to form rollable pitch
Solidifying soil layer；
(2) road is embedded in prefabricated rollable asphalt concrete layer with intelligent aggregate unit；
(3) rollable asphalt concrete layer the intelligent bituminous surface layer of prefabricated blanket type is wound into roll up；
(4) the intelligent bituminous road surface of prefabricated blanket type is formed after paving.
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| CN110656560A (en) * | 2019-11-05 | 2020-01-07 | 长安大学 | Intelligent aggregate for monitoring motion state of aggregate in real time and application method thereof |
| CN111236011A (en) * | 2020-01-23 | 2020-06-05 | 同济大学 | Road surface compaction quality monitoring system based on intelligent aggregate |
| CN111893835A (en) * | 2020-07-30 | 2020-11-06 | 长安大学 | Assembled intelligent perception road surface structure and system based on piezoelectric effect |
| CN113026472A (en) * | 2021-03-05 | 2021-06-25 | 长安大学 | Intelligent cement concrete pavement structure based on piezoelectric effect and paving method thereof |
| CN115259774A (en) * | 2022-07-29 | 2022-11-01 | 武汉理工大学 | Mineralization-based self-sensing building skin and preparation method and application thereof |
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