CN109626873A - A kind of high-termal conductivity asphalt and the pavement structure formed is prepared by it - Google Patents
A kind of high-termal conductivity asphalt and the pavement structure formed is prepared by it Download PDFInfo
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- CN109626873A CN109626873A CN201811642366.3A CN201811642366A CN109626873A CN 109626873 A CN109626873 A CN 109626873A CN 201811642366 A CN201811642366 A CN 201811642366A CN 109626873 A CN109626873 A CN 109626873A
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- Prior art keywords
- asphalt
- termal conductivity
- layer
- pavement structure
- basalt
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Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 30
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000011384 asphalt concrete Substances 0.000 claims abstract description 31
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 24
- -1 boron nitride compound Chemical class 0.000 claims abstract description 17
- 239000004593 Epoxy Substances 0.000 claims abstract description 15
- 229910052582 BN Inorganic materials 0.000 claims abstract description 12
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 11
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 10
- 239000010410 layer Substances 0.000 claims description 60
- 239000002344 surface layer Substances 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 16
- 239000006004 Quartz sand Substances 0.000 claims description 14
- 239000003822 epoxy resin Substances 0.000 claims description 13
- 229920000647 polyepoxide Polymers 0.000 claims description 13
- 239000002994 raw material Substances 0.000 claims description 11
- 239000004925 Acrylic resin Substances 0.000 claims description 8
- 229920000178 Acrylic resin Polymers 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 8
- 229910021389 graphene Inorganic materials 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 4
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 239000002557 mineral fiber Substances 0.000 claims 1
- 239000004576 sand Substances 0.000 claims 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 9
- 239000011707 mineral Substances 0.000 abstract description 9
- 239000000203 mixture Substances 0.000 abstract description 4
- 238000012546 transfer Methods 0.000 abstract description 4
- 239000006087 Silane Coupling Agent Substances 0.000 abstract description 3
- XXBDWLFCJWSEKW-UHFFFAOYSA-N dimethylbenzylamine Chemical compound CN(C)CC1=CC=CC=C1 XXBDWLFCJWSEKW-UHFFFAOYSA-N 0.000 abstract description 3
- VYKXQOYUCMREIS-UHFFFAOYSA-N methylhexahydrophthalic anhydride Chemical compound C1CCCC2C(=O)OC(=O)C21C VYKXQOYUCMREIS-UHFFFAOYSA-N 0.000 abstract description 3
- 239000011295 pitch Substances 0.000 description 12
- 239000004567 concrete Substances 0.000 description 8
- 239000011159 matrix material Substances 0.000 description 7
- 239000011398 Portland cement Substances 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 239000012790 adhesive layer Substances 0.000 description 5
- 238000005485 electric heating Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 4
- 235000011941 Tilia x europaea Nutrition 0.000 description 4
- 239000010881 fly ash Substances 0.000 description 4
- 239000004571 lime Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000013007 heat curing Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000012744 reinforcing agent Substances 0.000 description 3
- 206010039203 Road traffic accident Diseases 0.000 description 2
- 230000002929 anti-fatigue Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 235000011056 potassium acetate Nutrition 0.000 description 1
- 239000005413 snowmelt Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide cements
-
- 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
- E01C11/00—Details of pavings
- E01C11/24—Methods or arrangements for preventing slipperiness or protecting against influences of the weather
- E01C11/26—Permanently installed heating or blowing devices ; Mounting 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
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
-
- 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
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
-
- 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
- C04B2111/90—Electrical properties
- C04B2111/92—Electrically insulating materials
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
The invention belongs to technical field of road engineering, and in particular to a kind of high-termal conductivity asphalt and prepare the pavement structure formed by it.High-termal conductivity asphalt provided by the invention, including bituminous epoxy, modified epoxy, calcium carbonate cladded type hexagonal boron nitride compound particle, nano silica, mineral fibres, gather materials, methyl hexahydrophthalic anhydride, benzyl dimethylamine, silane coupling agent.Between calcium carbonate cladded type hexagonal boron nitride compound particle, nano silica and mineral fibres three collaboration building high thermal conductivity height insulate supply chain network structure so that the mixture prepare the structure to be formed thermal coefficient and system resistivity it is larger.The road surface can quickly transfer heat to the first asphalt concrete layer, and melt road surface in time falls snow, prevent icy on road, guarantee vehicle normal pass；Meanwhile leaky will not occur in the road surface, guarantee the safety of pedestrian and vehicle.
Description
Technical field
The invention belongs to technical field of road engineering, and in particular to a kind of high-termal conductivity asphalt and prepare shape by it
At pavement structure.
Background technique
With the development of the social economy, the step of Process of Urbanization Construction is constantly accelerated, between city and city and city
The route network of communication lines criss-cross, that star sieve is densely covered is built up in inside.Bituminous pavement due to its surfacing, seamless, rub resistance,
Maintenance is convenient, has not only driven a vehicle comfortable but also durable, to become most common high class pavement in road construction.
In the cold time, often there is the accumulated snow of large area and freezes in road surface, and normally travel vehicle is caused to have skidded, lose
Phenomenon is controlled, traffic accident then occurs, therefore, it has to highway be closed to remove ice and snow, seriously affected and had a good transport and communication network, given
People's life brings very big inconvenience.
Currently, the snow melt deicing measure for road surfaces such as highway, airfield runway, bridge and urban road is mainly organic
Tool snow removing, artificial snow removing and deicing salt snow removing.Wherein, snow removal with machine low efficiency；Artificial snow removing large labor intensity, and there is safety
Hidden danger；Deicing salt snow removing is disadvantageous in that the surface friction coefficient after coating covering reduces, and braking distance is elongated, easily sends out
The traffic accidents such as raw defective steering stabilizer, collision, overturning, and corrosion of traditional " villaumite " deicing salt to large-scale public infrastructure
Seriously, the price of the organic deicing salt of potassium acetate is too high, and unsuitable large area uses.
To solve the above problems, Chinese patent literature CN108442208A discloses a kind of road with Thermal conductivity
Face structure, including the roadbed, Soil Lime Flyash Base Course, the Sub-course Asphalt Concrete, face in bituminous concrete from bottom to top set gradually
Layer, heating layer and bituminous concrete upper layer；Wherein, heating layer includes heat-insulated adhesive layer, electric heating film layer and conducting adhesive layer,
Between heat-insulated adhesive layer and conducting adhesive layer, electric heating film layer is heated electric heating film layer by graphene strips conduction,
Bituminous concrete upper layer is transferred heat to, falling on bituminous concrete upper layer can be melted in time and avenge and freeze, guaranteed
Vehicle normal pass.
But the pavement structure has the following problems: when electric heating film layer is powered, cannot ensure conducting adhesive layer and drip
Green concrete upper layer will not leak electricity, once electric leakage can cause serious consequence to pedestrian and vehicle；Allow to overcome electric leakage
Defect is melted since the heat conductivity of asphalt concrete layer is poor using the electric heating film layer in above-mentioned pavement structure
Accumulated snow, working efficiency are low；The thickness of bituminous concrete upper layer is in 4cm or more in above-mentioned pavement structure, and with motor vehicle number
The increase of amount, bituminous concrete upper layer is there are also the trend thickeied, its thermal conduction effect will be worse at that time.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that overcoming existing pavement structure electrical insulating property difference and heat transfer effect
The low defect of rate, thus propose that a kind of good insulation preformance, heat-transfer rate are fast and save the high-termal conductivity asphalt of material and
The pavement structure formed is prepared by it.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
The present invention provides a kind of high-termal conductivity asphalt, the raw material including following parts by weight:
Preferably, the high-termal conductivity asphalt, the modified epoxy is by siloxanes, acrylic resin, poly- inclined
Vinyl fluoride and epoxy resin reaction are prepared.
Preferably, the high-termal conductivity asphalt, the calcium carbonate cladded type hexagonal nanometer boron nitride compound particle
Partial size is 60~80nm；The partial size of the nano silica is 10~20nm.
It is further preferred that the high-termal conductivity asphalt, as mass fraction, the mineral fibres includes with the following group
Point:
It is further preferred that the high-termal conductivity asphalt, described to gather materials including diabase and quartz sand；
Wherein, the mass ratio of the diabase and the quartz sand be (1~1.5): 1, the doleritic partial size be 2~
4mm, the partial size of the quartz sand are 0.15~0.3mm.
It is further preferred that the high-termal conductivity asphalt, further includes mineral fibres and glass fibre.
The present invention also provides the pavement structures being prepared by above-mentioned high-termal conductivity asphalt.
Preferably, the pavement structure, including surface layer, base and the underlayment set gradually from top to bottom, the surface layer is used
In directly bearing traffic load, the base is used to the load that the surface layer is transmitted being diffused into the underlayment；
The surface layer includes the first asphalt concrete layer, heating layer and the second bituminous concrete set gradually from top to bottom
Layer；
First asphalt concrete layer is prepared by above-mentioned high-termal conductivity asphalt.
It is further preferred that the pavement structure, the heating layer includes zine plate and the stone that is fixed on the zine plate
Black alkene item.
Preferably, the pavement structure, second asphalt concrete layer include the raw material of following parts by weight:
It is further preferred that by mass percentage, the basalt include: 9.5~16mm basalt 57%, 4.75~
9.5mm basalt 39%, 2.36~4.75mm basalt 4%.
Technical solution of the present invention has the advantages that
1. high-termal conductivity asphalt provided by the invention, including bituminous epoxy, modified epoxy, calcium carbonate cladding
Type hexagonal boron nitride compound particle nano silica, mineral fibres, gathers materials, methyl hexahydrophthalic anhydride, benzyl dimethylamine, silane
Coupling agent.
Calcium carbonate cladded type hexagonal boron nitride compound particle of the present invention is total by chemistry by spherical calcium carbonate
Valence link is coated on hexagonal boron nitride, can reduce interface resistance, but also with higher electrical insulating property；By calcium carbonate cladded type six
Square boron nitride compound particle cooperates with building high thermal conductivity height insulation supply chain network structure between nano silica, mineral fibres three,
It is expanded after adsorbing bituminous epoxy to three-dimensional again, while guaranteeing plane higher heat-conductivity, also can guarantee higher method
Phase thermal conductivity, so that the mixture prepares the thermal coefficient for the system to be formed more than 3.25W/ (mK), system resistivity exists
9.3×1013Ω or more.Meanwhile bituminous epoxy has stronger anti-pressure ability, non-deformability, anti-fatigue ability and anti-invades
Corrosion energy, under methyl hexahydrophthalic anhydride, benzyl dimethylamine, silane coupling agent effect, so that hyperbranched reticular structure is formed, so that
The road surface formed is prepared by the mixture and has superior intensity, heat conductivity and electrical insulating property.
2. high-termal conductivity asphalt provided by the invention is added polyamide and further increases electrical insulating property
Energy.
3. the pavement structure provided by the invention being prepared by high-termal conductivity asphalt, can be quickly by heat
It is transmitted to the first asphalt concrete layer, melt road surface in time falls snow, prevents icy on road, guarantee vehicle normal pass；Meanwhile
The road surface will not generate leaky, it is ensured that the safety of pedestrian and vehicle.
4. the pavement structure provided by the invention being prepared by high-termal conductivity asphalt, the second asphalt concrete layer
Raw material including following parts by weight: matrix pitch, polyethylene-epoxy curing agent copolymer, epoxy resin, epoxy resin are solid
Agent, basalt, the layer have good heat-blocking action, prevent heat caused by heating layer from reaching base and underlayment.
Specific embodiment
Purpose, technical solution and main points to facilitate the understanding of the present invention, embodiments of the present invention will be made below into
One step detailed description.The present invention can be implemented with many different forms, and should not be construed as being limited to reality set forth herein
Apply example.On the contrary, this embodiment is provided, so that the present invention will be thorough and complete, and will design of the invention is abundant
Those skilled in the art are communicated to, the present invention will only be defined by the appended claims.
Embodiment 1
The present embodiment provides a kind of pavement structures, including surface layer, base and the underlayment set gradually from top to bottom, surface layer
For directly bearing traffic load, base is used to the load that surface layer is transmitted being diffused into underlayment；Surface layer is by from top to bottom successively
The first asphalt concrete layer, heating layer and the second asphalt concrete layer being arranged are constituted.
Wherein, the first asphalt concrete layer is prepared by high-termal conductivity asphalt, high-termal conductivity pitch mixing
Material includes the raw material of following parts by weight:
Above-mentioned modified epoxy is prepared by the reaction of siloxanes, acrylic resin, Kynoar and epoxy resin,
Preparation method includes the following steps:
(1) siloxanes, acrylic resin, Kynoar and epoxy resin (molar ratio 1:2.5:1:1.5) is taken to add to
To open mill, 3h is stirred at 150 DEG C；
(2) after the temperature of open mill is cooled to 40~50 DEG C, catalyst is added, is uniformly mixing to obtain rubber compound；
(3) rubber compound for preparing step (2) heat cure 30min at pressure 5MPa, 150 DEG C of temperature, is prepared and changes
Property epoxy resin.
Use the modified epoxy of above-mentioned preparation method preparation anti-pressure ability, non-deformability, anti-fatigue ability with
And erosion-resisting characteristics is better than conventional other modified epoxies.
The partial size of above-mentioned calcium carbonate cladded type hexagonal nanometer boron nitride compound particle is 70nm；
The partial size of above-mentioned nano silica is 15nm；
Above-mentioned mineral fibres includes following components (as mass fraction):
Above-mentioned to gather materials including diabase and quartz sand, the mass ratio of diabase and quartz sand is 1.25:1, doleritic grain
Diameter is 3mm, and the partial size of quartz sand is 0.225mm.
First asphalt concrete layer with a thickness of 2cm.
Heating layer includes zine plate and the graphene strips for being fixed on zine plate, and graphene strips are connected with electrode cable.
Heating layer with a thickness of 2cm.
Second asphalt concrete layer includes the raw material of following parts by weight:
Wherein, above-mentioned matrix pitch is No. 70 matrix pitches；By mass percentage, above-mentioned basalt include: 9.5~
16mm basalt 57%, 4.75~9.5mm basalt 39%, 2.36~4.75mm basalt 4%.
Second asphalt concrete layer with a thickness of 8cm.
Base includes cement stabilized macadam, reinforcing agent, portland cement, mass ratio 47%:1%:52%；The thickness of base
Degree is 15cm.
Underlayment includes lime, flyash, portland cement, mass ratio 40%:39%:21%；The thickness of underlayment
For 6cm.
Embodiment 2
The present embodiment provides a kind of pavement structures, including surface layer, base and the underlayment set gradually from top to bottom, surface layer
For directly bearing traffic load, base is used to the load that surface layer is transmitted being diffused into underlayment；Surface layer is by from top to bottom successively
The first asphalt concrete layer, heating layer and the second asphalt concrete layer being arranged are constituted.
Wherein, the first asphalt concrete layer is prepared by high-termal conductivity asphalt, high-termal conductivity pitch mixing
Material includes the raw material of following parts by weight:
Above-mentioned modified epoxy is reacted by siloxanes, acrylic resin, Kynoar and epoxy resin to be made, system
Preparation Method the following steps are included:
(1) siloxanes, acrylic resin, Kynoar and epoxy resin (molar ratio 1:1.5:1.5:1.0) is taken to add
To open mill is arrived, 2h is stirred at 160 DEG C；
(2) after the temperature of open mill is cooled to 50 DEG C, catalyst is added, is uniformly mixing to obtain rubber compound；
(3) rubber compound for preparing step (2) heat cure 20min at pressure 15MPa, 130 DEG C of temperature, is prepared and changes
Property epoxy resin.
The partial size of above-mentioned calcium carbonate cladded type hexagonal nanometer boron nitride compound particle is 80nm；
The partial size of above-mentioned nano silica is 10nm；
Above-mentioned mineral fibres includes following components (as mass fraction):
Above-mentioned to gather materials including diabase and quartz sand, the mass ratio of diabase and quartz sand is 1:1, and doleritic partial size is
4mm, the partial size of quartz sand are 0.15mm.
First asphalt concrete layer with a thickness of 1.5cm.
Heating layer includes zine plate and the graphene strips for being fixed on zine plate, and graphene strips are connected with electrode cable.
Heating layer with a thickness of 2cm.
Second asphalt concrete layer includes the raw material of following parts by weight:
Wherein, above-mentioned matrix pitch is No. 90 matrix pitches；By mass percentage, above-mentioned basalt include: 9.5~
16mm basalt 57%, 4.75~9.5mm basalt 39%, 2.36~4.75mm basalt 4%.
Second asphalt concrete layer with a thickness of 8cm.
Base includes cement stabilized macadam, reinforcing agent, portland cement, mass ratio 55%:3%:42%；The thickness of base
Degree is 15cm.
Underlayment includes lime, flyash, portland cement, mass ratio 35%:50%:15%；The thickness of underlayment
For 6cm.
Embodiment 3
The present embodiment provides a kind of pavement structures, including surface layer, base and the underlayment set gradually from top to bottom, surface layer
For directly bearing traffic load, base is used to the load that surface layer is transmitted being diffused into underlayment；Surface layer is by from top to bottom successively
The first asphalt concrete layer, heating layer and the second asphalt concrete layer being arranged are constituted.
Wherein, the first asphalt concrete layer is prepared by high-termal conductivity asphalt, high-termal conductivity pitch mixing
Material includes the raw material of following parts by weight:
Above-mentioned modified epoxy is prepared by the reaction of siloxanes, acrylic resin, Kynoar and epoxy resin,
Preparation method includes the following steps:
(1) siloxanes, acrylic resin, Kynoar and epoxy resin (molar ratio 1:2.0:1.5:1.0) is taken to add
To open mill is arrived, 4h is stirred at 140 DEG C；
(2) after the temperature of open mill is cooled to 45 DEG C, catalyst is added, is uniformly mixing to obtain rubber compound；
(3) rubber compound for preparing step (2) heat cure 40min at pressure 10MPa, 140 DEG C of temperature, is prepared and changes
Property epoxy resin.
The partial size of above-mentioned calcium carbonate cladded type hexagonal nanometer boron nitride compound particle is 60nm；
The partial size of above-mentioned nano silica is 20nm；
Above-mentioned mineral fibres includes following components (as mass fraction):
Above-mentioned to gather materials including diabase and quartz sand, the mass ratio of diabase and quartz sand is 1.5:1, doleritic partial size
For 2mm, the partial size of quartz sand is 0.3mm.
First asphalt concrete layer with a thickness of 2.5cm.
Heating layer includes zine plate and the graphene strips for being fixed on zine plate, and graphene strips are connected with electrode cable.
Heating layer with a thickness of 2cm.
Second asphalt concrete layer includes the raw material of following parts by weight:
Wherein, above-mentioned matrix pitch is No. 70 matrix pitches；By mass percentage, above-mentioned basalt include: 9.5~
16mm basalt 57%, 4.75~9.5mm basalt 39%, 2.36~4.75mm basalt 4%.
Second asphalt concrete layer with a thickness of 8cm.
Base includes cement stabilized macadam, reinforcing agent, portland cement, mass ratio 40%:2%:58%；The thickness of base
Degree is 15cm.
Underlayment includes lime, flyash, portland cement, mass ratio 45%:35%:20%；The thickness of underlayment
For 6cm.
Test case 1
Pyroconductivity and system resistivity measurement are carried out with high-termal conductivity asphalt prepared by embodiment 1-3, is tied
Fruit is as shown in table 1:
The pyroconductivity and system resistivity of 1 high-termal conductivity asphalt of table
| Pyroconductivity (W/ (mK)) | System resistivity (1013Ω) | |
| Embodiment 1 | 3.38 | 9.5 |
| Embodiment 2 | 3.40 | 9.8 |
| Embodiment 3 | 3.25 | 9.3 |
It is learnt by table 1, by the way that modified epoxy, calcium carbonate cladded type hexagonal boron nitride are added in modified epoxy pitch
Compound particle, nano silica can assign mixture excellent thermally conductive, insulation performance；It is mixed using this high-termal conductivity pitch
Expect the pavement structure being prepared, can quickly transfer heat to the first asphalt concrete layer, melts falling for road surface in time
Snow prevents icy on road, guarantee vehicle normal pass；Meanwhile the road surface will not generate leaky, it is ensured that Hang Renhe
The safety of vehicle.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of high-termal conductivity asphalt, which is characterized in that the raw material including following parts by weight:
2. high-termal conductivity asphalt according to claim 1, which is characterized in that the modified epoxy is by silicon oxygen
Alkane, acrylic resin, Kynoar and epoxy resin reaction are prepared.
3. high-termal conductivity asphalt according to claim 1 or 2, which is characterized in that the calcium carbonate cladded type six
The partial size of square boron nitride nanometer compound particle is 60~80nm；The partial size of the nano silica is 10~20nm.
4. high-termal conductivity asphalt according to claim 3, which is characterized in that as mass fraction, the mineral
Fiber includes following components:
5. high-termal conductivity asphalt according to claim 4, which is characterized in that described to gather materials including diabase and stone
Sand；
Wherein, the mass ratio of the diabase and the quartz sand is (1~1.5): 1, the doleritic partial size is 2~4mm,
The partial size of the quartz sand is 0.15~0.3mm.
6. high-termal conductivity asphalt according to claim 5, which is characterized in that further include polyamide and glass
Fiber.
7. a kind of pavement structure, which is characterized in that including surface layer, base and the underlayment set gradually from top to bottom, the face
Layer is used to the load that the surface layer is transmitted being diffused into the underlayment for directly bearing traffic load, the base；
The surface layer includes the first asphalt concrete layer, heating layer and the second asphalt concrete layer set gradually from top to bottom；
First asphalt concrete layer is prepared by any high-termal conductivity asphalt of claim 1-6.
8. pavement structure according to claim 7, which is characterized in that the heating layer includes zine plate and is fixed on institute
State the graphene strips on zine plate.
9. pavement structure according to claim 7 or 8, which is characterized in that second asphalt concrete layer includes following
The raw material of parts by weight:
10. pavement structure according to claim 9, which is characterized in that by mass percentage, the basalt includes:
9.5~16mm basalt 57%, 4.75~9.5mm basalt 39%, 2.36~4.75mm basalt 4%.
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