CN111021180A - Pavement structure for snow melting and ice melting and use method - Google Patents
Pavement structure for snow melting and ice melting and use method Download PDFInfo
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- CN111021180A CN111021180A CN201911399161.1A CN201911399161A CN111021180A CN 111021180 A CN111021180 A CN 111021180A CN 201911399161 A CN201911399161 A CN 201911399161A CN 111021180 A CN111021180 A CN 111021180A
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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
- 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
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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
- 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
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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
- 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
- E01C11/265—Embedded electrical heating elements ; Mounting thereof
Abstract
The invention discloses a pavement paving structure for melting snow and ice and a use method thereof, belonging to the technical field of melting snow and ice on a pavement, comprising a heat insulation layer, an electric conduction bonding layer, a waterproof bonding heat conduction layer and an abrasion layer which are arranged from bottom to top in sequence; the lower part of the conductive bonding layer is provided with a heat insulation layer which can effectively reduce the downward transfer of heat generated by the conductive bonding layer, so that the heat loss and the loss are reduced, the waterproof layer is arranged on the waterproof bonding heat conduction layer on the premise of ensuring heat conduction, the water leakage is prevented due to water infiltration, the conductive electrode has a good conductive effect, and the pavement snow and ice melting can be effectively guaranteed. The road surface snow and ice melting system has wide applicability, can realize snow and ice melting of road surfaces of multiple occasions in time in winter ice and snow weather, is green and environment-friendly, ensures smoothness of roads and driving safety, and can effectively relieve low-temperature cracking of asphalt road surfaces.
Description
Technical Field
The invention belongs to the technical field of snow melting and deicing of road surfaces, and relates to a road surface paving structure for snow melting and deicing and a using method thereof.
Background
In winter, the snow on the pavement and the bridge deck is frozen, so that the anti-skid capacity of the pavement is seriously reduced, and the traffic safety of the pavement is seriously influenced, therefore, how to timely and efficiently remove the snow on the pavement has important significance for guaranteeing the traffic safety and the traffic capacity of the pavement in winter. The traditional methods for removing ice and snow on the road surface, such as manual cleaning, mechanical removing, ice salt spreading and the like, have hysteresis, influence on road traffic capacity, influence on road use performance and bring environmental problems; an environment-friendly and sustainable active electrothermal ice and snow melting technology represented by pre-buried heating cables, conductive grids and conductive asphalt concrete becomes a research focus and a main development direction, and a large number of researchers have developed related researches on the technology at present.
The technology of pre-burying the heating cable and the conductive grid is that the heating cable or the conductive grid with an insulating layer and the like are laid in a pavement structure, and the heating cable or the conductive grid is electrified to generate heat energy to melt ice and snow. The conductive asphalt concrete realizes the transformation from an insulator to a conductor by doping conductive substances such as graphite, conductive fibers, conductive aggregates and the like into a pavement material, so that the conductive asphalt concrete realizes the snow melting and ice melting functions by electrifying and heating, has obvious pressure-sensitive characteristics and induction heating performance, can realize self-diagnosis and self-healing of a structure and enhance the fatigue resistance of an asphalt mixture, and has been widely researched at present. Meanwhile, the pre-buried heating cable, the conductive grid, the conductive asphalt concrete and the like are only suitable for newly-built roads and are not suitable for snow melting and ice melting after the existing roads are maintained and repaired.
Therefore, in order to melt snow and ice on road surfaces in multiple occasions, provide a new research direction for the snow and ice melting technology of new roads and existing roads, and achieve snow and ice melting of roads in a green, environment-friendly, sustainable and effective manner, it is necessary to provide a conductive bonding system which can be used for snow and ice melting of new roads and existing roads.
Disclosure of Invention
In order to overcome the disadvantages of the prior art, the present invention provides a pavement structure for melting snow and ice and a method for manufacturing the same, which solves the problem that the existing snow and ice melting method can only be used for newly-built roads and can not be used for existing roads.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
the invention discloses a pavement paving structure for melting snow and ice, which comprises a heat insulation layer, an electric conduction bonding layer, a waterproof bonding heat conduction layer and a wearing layer which are sequentially paved on a pavement from bottom to top, wherein a conductive electrode electrically connected with an external power supply is arranged in the electric conduction bonding layer.
Preferably, the heat insulation layer is prepared from 78-82 parts of bonding materials and 18-22 parts of heat insulation fillers in parts by weight; the conductive bonding layer is prepared from 89-93 parts of bonding materials, 3-5 parts of a powder conductive filler layer and 4-6 parts of carbon fibers; the waterproof bonding heat conduction layer is prepared from 95-97 bonding materials and 3-5 parts of heat conduction fillers.
Preferably, the length of the carbon fiber is 6-10 mm.
Preferably, the bonding material is any one of aqueous epoxy modified emulsified asphalt, aqueous polyurethane epoxy modified emulsified asphalt, aqueous acrylic epoxy resin modified emulsified asphalt, SBS modified emulsified asphalt, rubber powder modified emulsified asphalt, aqueous epoxy resin and aqueous acrylic resin.
Preferably, the heat insulation filler is hollow glass microspheres, floating beads or diatomite.
Preferably, the powder conductive filler and the powder heat conductive filler are the same and are prepared from any one or more of graphite, graphene and carbon nanotubes.
Preferably, the conducting electrodes are provided in a plurality and are arranged at a spacing of 1 m.
Further preferably, the conductive electrode is a copper sheet electrode.
Preferably, the wearing course is a preventive curing seal or asphalt concrete.
The invention discloses a use method of the pavement paving structure, and the spreading amount of the heat insulation layer 2 is 0.3-0.4 kg/m2The amount of the conductive adhesive layer 3 is 0.5 to 0.6kg/m2The amount of the waterproof adhesive heat-conducting layer 4 is 0.3-0.4 kg/m2And (4) paving.
Compared with the prior art, the invention has the following beneficial effects:
the invention discloses a pavement paving structure for snow and ice melting, which is characterized in that a heat insulation layer, an electric conduction bonding layer, a waterproof bonding heat conduction layer and an abrasion layer are sequentially paved from bottom to top, the heat insulation layer is arranged at the lower part of the electric conduction bonding layer and can effectively reduce downward transfer of heat generated by the electric conduction bonding layer and reduce heat loss and loss, so that more heat is transferred to a road surface to realize the snow and ice melting of the pavement, the waterproof bonding heat conduction layer is arranged at the upper part of the electric conduction bonding layer, the waterproof layer is arranged on the premise of ensuring heat conduction to prevent water from permeating and leaking electricity, the abrasion layer at the uppermost layer can prolong the service life of the system, the practicability is enhanced, the electric conduction electrode has a good electric conduction effect, and the snow and ice melting of the pavement. The road surface snow melting and deicing system can be suitable for newly built asphalt road surfaces, old cement concrete road surfaces additionally paved with asphalt concrete road surfaces and bridge deck paved with asphalt concrete road surfaces, has wide applicability, can realize the melting of snow and ice of road surfaces in multiple occasions in time in winter ice and snow weather, is green, environment-friendly and sustainable, does not need to interrupt traffic, and ensures the smoothness of roads and the driving safety; meanwhile, the low-temperature cracking of the asphalt pavement can be effectively relieved.
Furthermore, modified emulsified asphalt such as waterborne epoxy modified emulsified asphalt has great stickness, can improve cohesiveness between each layer, can prevent the road surface fracture at low temperature, can improve the flexibility and the elasticity on road surface simultaneously, improves the practicality of this structure of mating formation.
Furthermore, the heat insulation effect of heat insulation materials such as hollow glass beads is good, and heat in the pavement structure can be effectively prevented from being transferred to the pavement; graphite and graphite alkene have electrically conductive and heat conductivility simultaneously, improve the electrically conductive and heat conduction efficiency of device, and then improve snow melt deicing efficiency.
Furthermore, the conductive electrodes are uniformly laid in the conductive adhesive layer, so that the conductive effect can be further enhanced, and the snow and ice melting effect of the road surface can be improved; the conductive electrode is a copper sheet electrode, so that the cost can be saved.
Further, the wearing layer adopts the open sealing layer or the asphalt concrete with lower cost and better wear resistance, so that the practicability of the pavement structure can be improved, and the service life of the pavement structure can be prolonged.
The invention discloses a use method of the pavement paving structure, the heat loss can be prevented by filling the heat-insulating filler, the conductive bonding layer is prepared by mixing the bonding material, the powder conductive filler and the carbon fiber, the conductivity and the heating power of the conductive bonding layer are effectively ensured, and the snow melting and the ice melting of the pavement are uniformly realized. The upper portion of the electric conduction bonding layer is provided with a waterproof bonding heat conduction layer, waterproof bonding filler and heat conduction filler are added, the heat conduction coefficient is effectively improved, the electric conduction bonding layer is protected from water damage, and meanwhile the heat is improved, and the road surface snow melting and ice melting are effectively achieved to the road surface transmission efficiency.
Drawings
FIG. 1 is a schematic structural view of a pavement structure for melting snow and ice according to the present invention;
FIG. 2 is a partial enlarged view;
wherein: 1-lower bearing layer, 2-thermal insulation layer, 3-electric conduction adhesive layer, 4-waterproof adhesive heat conduction layer, 5-wearing layer, 6-thermal insulation filler, 7-electric conduction electrode, 8-powder electric conduction filler, 9-carbon fiber and 10-heat conduction filler.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1, a pavement paving structure for melting snow and ice comprises a heat insulation layer 2, an electric conduction adhesive layer 3, a waterproof adhesive heat conduction layer 4 and a wearing layer 5 which are sequentially paved on a pavement from bottom to top, wherein a conductive electrode 7 electrically connected with an external power supply is arranged in the electric conduction adhesive layer 3; a plurality of conductive electrodes 7 are arranged at a spacing of 1 m; the heat insulation layer 2 is prepared from 78-82 parts of bonding materials and 18-22 parts of heat insulation filler 6; the conductive bonding layer 3 is prepared from 89-93 parts of bonding materials, 3-5 parts of a powder conductive filler layer 8 and 4-6 parts of carbon fibers 9; the waterproof bonding heat conduction layer 4 is prepared from 95-97 parts of waterproof bonding material and 3-5 parts of heat conduction filler 10; the bonding material is any one of waterborne epoxy modified emulsified asphalt, waterborne polyurethane epoxy modified emulsified asphalt, waterborne acrylic epoxy resin modified emulsified asphalt, SBS modified emulsified asphalt, rubber powder modified emulsified asphalt, waterborne epoxy resin and waterborne acrylic resin; the heat insulation filler 6 is hollow glass micro-beadsDolomite or diatomaceous earth; the waterproof bonding material is a mixture of waterproof paint and a bonding material, and the powder conductive filler 8 and the heat conductive filler 10 are the same and are prepared from any one or more of graphite, graphene and carbon nano tubes; the spreading amount of the heat-insulating layer 2 is generally 0.3-0.4 kg/m2The amount of the conductive adhesive layer 3 is generally 0.5 to 0.6kg/m2The amount of the waterproof adhesive heat-conductive layer 4 is generally 0.3 to 0.4kg/m2(ii) a The length of the carbon fiber 9 is 6-10 mm; the wearing layer 5 is a preventive maintenance seal such as a Kapu seal or asphalt concrete.
Example 1
Referring to fig. 1, the invention discloses a pavement structure for snow melting and deicing, which comprises a heat insulation layer 2, an electric conduction adhesion layer 3, a waterproof adhesion heat conduction layer 4 and a wearing layer 5 which are arranged on a lower bearing layer 1 from bottom to top in sequence; wherein the heat insulating layer 2 is added with heat insulating filler 6, the conductive adhesive layer 3 is added with powder conductive filler 8 and carbon fiber 9, the conductive adhesive layer 3 is distributed with conductive electrodes 7, the waterproof adhesive heat-conducting layer 4 is added with heat conductive filler 10, and the lower bearing layer 1 is an old asphalt concrete pavement;
the heat-insulating layer 2 is prepared from water-based epoxy modified emulsified asphalt and hollow glass beads, and the spreading amount of the heat-insulating layer 2 is 0.4kg/m2Wherein, the hollow glass bead is 22 parts as the heat insulation filler, and the water-based epoxy modified emulsified asphalt bonding material is 78 parts as the bonding material;
the conductive adhesive layer 3 is prepared from water-based epoxy modified emulsified asphalt, graphene powder and carbon fibers 9, and the spreading amount of the conductive adhesive layer 3 is 0.5kg/m2The composite material comprises 4 parts of graphene powder serving as a conductive filler, 5 parts of carbon fibers and 91 parts of waterborne epoxy modified emulsified asphalt serving as a bonding material, wherein the length of the carbon fibers is 8 mm;
the conductive bonding layer 3 is also provided with conductive electrodes 7 in parallel along the driving direction, the conductive electrodes 7 are copper sheets, and the arrangement distance is 1 m;
the waterproof bonding heat conduction layer 4 is prepared from BMP waterproof coating, waterborne epoxy modified emulsified asphalt and graphite, and the spreading amount of the waterproof bonding heat conduction layer 4 is 0.3kg/m2Wherein the graphite is used as a heat-conducting filler 4 parts and is used as a bonding material96 parts of waterborne epoxy modified emulsified asphalt; the wearing layer 5 adopts a common seal layer.
After the paving structure is assembled, the conductive electrode 7 is connected with an external power supply, and snow melting and ice melting are started.
Example 2
The contents are the same as those of example 1 except for the following.
The heat insulation layer 2 is prepared by mixing 80 parts of waterborne polyurethane epoxy modified emulsified asphalt and 20 parts of hollow glass beads, and the spreading amount is 0.4kg/m2(ii) a The conductive adhesive layer 3 is prepared by mixing 89 parts of waterborne polyurethane epoxy modified emulsified asphalt, 5 parts of graphite and 6 parts of carbon fiber, and the spreading amount is 0.5kg/m2(ii) a The waterproof bonding heat conduction layer 4 is prepared by mixing 95 parts of waterborne polyurethane epoxy modified emulsified asphalt and 5 parts of graphite, and the spreading amount is 0.4kg/m2(ii) a The carbon fiber length is 8 mm.
Example 3
The contents are the same as those of example 1 except for the following.
The heat insulation layer 2 is prepared by mixing 82 parts of water-based epoxy resin and 18 parts of diatomite, and the spreading amount is 0.3kg/m2(ii) a The conductive adhesive layer 3 is prepared by mixing 93 parts of water-based acrylic resin, 3 parts of carbon nano tubes and 4 parts of carbon fibers, and the spreading amount is 0.6kg/m2(ii) a The waterproof bonding heat conduction layer 4 is prepared by mixing 95 parts of water-based epoxy resin and 5 parts of carbon nano tubes, and the spreading amount is 0.3kg/m2(ii) a The carbon fiber length is 6 mm.
Example 4
The contents are the same as those of example 1 except for the following.
The heat insulation layer 2 is prepared by mixing 81 parts of SBS modified emulsified asphalt and 19 parts of floating beads, and the spreading amount is 0.3kg/m2(ii) a The conductive adhesive layer 3 is prepared by mixing 90 parts of water-based acrylic resin, 5 parts of graphene and 5 parts of carbon fiber, and the spreading amount is 0.6kg/m2(ii) a The waterproof bonding heat conduction layer 4 is prepared by mixing 97 parts of water-based acrylic resin and 3 parts of graphene, and the spreading amount is 0.3kg/m2(ii) a The carbon fiber length is 10 mm.
The paving structure of the embodiment 1 is paved on the old asphalt concrete simulation pavement layer, the formed test piece is placed in a refrigerator at the temperature of-5 ℃, a 36V external power supply is connected, and the heating effect of the pavement surface is shown in the following table:
the paving structure of the embodiment 1 is paved on the cement soil bridge deck simulation layer, the formed test piece is placed in a refrigerator at the temperature of-5 ℃, a 36V external power supply is connected, and the heating effect of the road surface is shown in the following table:
the surface temperature reaches above 0 ℃, and the ice and snow melting can be realized, and the comparative analysis result shows that the pavement structure disclosed by the invention has a good heating effect and can realize a good snow and ice melting effect. The road surface snow melting and ice melting structure can be used for newly-built asphalt road surfaces, old cement concrete road surfaces, old asphalt road surfaces, preventive maintenance sealing layers and bridge deck pavement asphalt concrete road surfaces.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a road surface pavement structure for snow melt ice which characterized in that includes thermal-protective layer (2), electrically conductive adhesive layer (3), waterproof adhesive heat-conducting layer (4) and wearing and tearing layer (5) of laying in proper order on road surface from bottom to top, wherein is provided with in electrically conductive adhesive layer (3) with external power supply electric connection's electrically conductive electrode (7).
2. The pavement structure for melting snow and ice according to claim 1, wherein the heat insulation layer (2) is prepared from 78-82 parts by weight of bonding material and 18-22 parts by weight of heat insulation filler (6); the conductive bonding layer (3) is prepared from 89-93 parts of bonding material, 3-5 parts of powder conductive filler layer (8) and 4-6 parts of carbon fiber (9); the waterproof bonding heat conduction layer (4) is prepared from 95-97 bonding materials and 3-5 parts of heat conduction fillers (10).
3. A pavement structure for melting snow and ice according to claim 2, wherein the length of the carbon fibers (9) is 6 to 10 mm.
4. The pavement structure for melting snow and ice as claimed in claim 2, wherein the bonding material is any one of aqueous epoxy modified emulsified asphalt, aqueous polyurethane epoxy modified emulsified asphalt, aqueous acrylic epoxy resin modified emulsified asphalt, SBS modified emulsified asphalt, rubber powder modified emulsified asphalt, aqueous epoxy resin and aqueous acrylic resin.
5. The pavement structure for melting snow and ice according to claim 2, wherein the thermal insulation filler (6) is hollow glass beads, floating beads or diatomaceous earth.
6. The pavement structure for melting snow and ice according to claim 2, wherein the powder electric conductive filler (8) and the heat conductive filler (10) are the same and are prepared from any one or more of graphite, graphene and carbon nanotubes.
7. The pavement structure for melting snow and ice according to claim 1, wherein the conductive electrodes (7) are provided in plural at a pitch of 1 m.
8. The pavement structure for melting snow and ice according to claim 7, wherein the conductive electrode (7) is a copper sheet electrode.
9. A pavement structure for melting snow and ice according to claim 1, wherein the wearing course (5) is a preventive curing cover or asphalt concrete.
10. Use of a pavement structure for snow and ice melting according to any of claims 1 to 9, characterized in that the spreading amount of the thermal insulation layer (2) is 0.3 to 0.4kg/m2The amount of the conductive adhesive layer (3) is 0.5 to 0.6kg/m2The amount of the water-proof adhesive heat-conducting layer (4) is 0.3-0.4 kg/m2And (4) paving.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112212913A (en) * | 2020-09-14 | 2021-01-12 | 吉林大学 | Road active ice and snow melting intelligent monitoring system and method |
| CN112878133A (en) * | 2021-01-18 | 2021-06-01 | 哈尔滨学院 | Self-snow-melting pavement structure based on graphene |
| CN114150547A (en) * | 2021-06-10 | 2022-03-08 | 西南交通大学 | Directional heat transfer pavement applied to ice and snow melting in airport and control method thereof |
| CN114855547A (en) * | 2022-05-06 | 2022-08-05 | 中国建筑第八工程局有限公司 | Snow-melting pavement structure and construction method thereof |
| WO2022183634A1 (en) * | 2021-03-04 | 2022-09-09 | 长安大学 | Bridge deck asphalt pavement structure capable of actively resisting ice and snow |
| CN115418907A (en) * | 2022-08-24 | 2022-12-02 | 连云港科创工程质量检测有限公司 | Heat self-healing asphalt pavement structure and heat self-healing method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115418907A (en) * | 2022-08-24 | 2022-12-02 | 连云港科创工程质量检测有限公司 | Heat self-healing asphalt pavement structure and heat self-healing method thereof |
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