CN215104370U - Environment-friendly harmless snow-melting asphalt pavement structure - Google Patents
Environment-friendly harmless snow-melting asphalt pavement structure Download PDFInfo
- Publication number
- CN215104370U CN215104370U CN202120825323.XU CN202120825323U CN215104370U CN 215104370 U CN215104370 U CN 215104370U CN 202120825323 U CN202120825323 U CN 202120825323U CN 215104370 U CN215104370 U CN 215104370U
- Authority
- CN
- China
- Prior art keywords
- layer
- snow
- pavement structure
- melting
- asphalt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000002844 melting Methods 0.000 title claims abstract description 48
- 239000010426 asphalt Substances 0.000 title claims abstract description 26
- 239000010410 layer Substances 0.000 claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000002344 surface layer Substances 0.000 claims abstract description 30
- 230000008018 melting Effects 0.000 claims abstract description 24
- 239000011384 asphalt concrete Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000002689 soil Substances 0.000 claims abstract description 5
- 239000004568 cement Substances 0.000 claims abstract description 4
- 239000005413 snowmelt Substances 0.000 claims description 19
- 239000004575 stone Substances 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 231100001261 hazardous Toxicity 0.000 claims 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 12
- 239000011440 grout Substances 0.000 abstract description 6
- 230000006378 damage Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- VSGNNIFQASZAOI-UHFFFAOYSA-L calcium acetate Chemical compound [Ca+2].CC([O-])=O.CC([O-])=O VSGNNIFQASZAOI-UHFFFAOYSA-L 0.000 description 2
- 239000001639 calcium acetate Substances 0.000 description 2
- 229960005147 calcium acetate Drugs 0.000 description 2
- 235000011092 calcium acetate Nutrition 0.000 description 2
- 150000001804 chlorine Chemical class 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- UEGPKNKPLBYCNK-UHFFFAOYSA-L magnesium acetate Chemical compound [Mg+2].CC([O-])=O.CC([O-])=O UEGPKNKPLBYCNK-UHFFFAOYSA-L 0.000 description 2
- 239000011654 magnesium acetate Substances 0.000 description 2
- 235000011285 magnesium acetate Nutrition 0.000 description 2
- 229940069446 magnesium acetate Drugs 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- ZORPJCONVDWMSP-UHFFFAOYSA-J calcium;magnesium;tetraacetate Chemical compound [Mg+2].[Ca+2].CC([O-])=O.CC([O-])=O.CC([O-])=O.CC([O-])=O ZORPJCONVDWMSP-UHFFFAOYSA-J 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Road Paving Structures (AREA)
Abstract
The utility model discloses an environment-friendly harmless snow-melting asphalt pavement structure, which comprises a pavement structure layer and roadside drainage systems arranged on two sides of the pavement structure layer; the pavement structure layer consists of a cement stabilized soil base layer with the thickness of 30-35 cm and 0.8 cm, which are laid from bottom to top in sequence~1.0kg/m2The modified emulsified asphalt permeable layer consists of an AC-25 lower surface layer with the thickness of 8cm, a water sealing and dividing layer, an AC-20 drainage upper surface layer with the thickness of 6cm and a snow melting upper surface layer with the thickness of 4 cm. The utility model discloses to melt snow upper strata and adopt the SBS asphalt concrete of porosity 30~35% and fill the snow-melting grout material in its hole and constitute, adopt macroporous asphalt concrete as the support chassis promptly, will melt snow grout material and fill in the hole of skeleton, it is loose to have avoided the road surface structure that ordinary road surface snow-melting agent component runs off and leads to. The snow-melting agent is slowly released in the snow-melting grouting material, and can meet the design service life of 5-10 years of the conventional pavement.
Description
Technical Field
The utility model relates to a bituminous paving structure among the road engineering especially relates to a snow melt bituminous paving structure that environmental protection is harmless.
Background
The ice and snow problem is faced in the northern area of China in winter every year, and the deicing and snow melting of roads are important problems which puzzle people for a long time. The mechanical snow removal has the problems of easy damage to the road surface or incomplete cleaning and the like, and has limited effect in snow melting and ice melting in winter, so the snow removal by the snow melting agent becomes a very simple, quick and convenient method for snow melting and ice melting in winter. The design idea of adding snow-melting salt as mineral powder into asphalt mixture to construct asphalt snow-melting pavement in the field of road engineering is also receiving more and more extensive attention due to simple and convenient use. However, most of the existing snow-melting agents take industrial salts such as sodium chloride, calcium chloride, magnesium chloride, potassium chloride and the like as main components, and the snow-melting agents have obvious snow-melting effect, but can corrode road surface structures after long-term use, greatly destroy road infrastructure and ecological environment around roads, influence the service life of the road infrastructure and the ecological environment, increase the chlorine content of water sources and soil, influence the normal growth of plants and influence ecological balance. Meanwhile, water after the ice and snow melt is too late to be discharged, and is extremely unfavorable for the driving performance and the safety of a running vehicle.
With the continuous improvement of the requirements on the pavement performance and the environment, the traditional asphalt pavement of the chlorine salt snow-melting agent is gradually eliminated, so that an environment-friendly and harmless snow-melting asphalt pavement structure is urgently needed to be developed.
Disclosure of Invention
An object of the utility model is to provide a snow melt bituminous pavement structure of environmental protection is harmless.
In order to achieve the above purpose, the utility model can adopt the following technical proposal:
the utility model discloses an environment-friendly harmless snow-melting asphalt pavement structure, which comprises a pavement structure layer and roadside drainage systems arranged on two sides of the pavement structure layer;
the pavement structure layer is composed of a cement stabilized soil base layer with the thickness of 30-35 cm and 0.8-1.0 kg/m, which are laid from bottom to top in sequence2The modified emulsified asphalt permeable layer consists of an AC-25 lower surface layer with the thickness of 8cm, a water sealing and dividing layer, an AC-20 drainage upper surface layer with the thickness of 6cm and a snow melting upper surface layer with the thickness of 4 cm.
The snow melting upper surface layer is composed of SBS asphalt concrete with the porosity of 30-35% and snow melting grouting materials filled in pores of the SBS asphalt concrete.
The water sealing and dividing layer consists of an SBS modified asphalt layer at the bottom and a crushed stone layer spread on the SBS modified asphalt layer.
The roadside drainage system comprises a water collecting ditch, impermeable layers are paved on the inner side wall and the bottom wall of the water collecting ditch, and drainage holes are arranged on the side wall of the water collecting ditch corresponding to the surface layer in the AC-20 drainage at intervals.
The impermeable layer is made of SBS modified emulsified asphalt according to the proportion of 0.8-1.0 kg/m2And spraying.
The utility model discloses compare with current pitch snow melt road surface, its advantage is embodied in:
1. the utility model discloses a snow melt upper surface layer adopts the SBS asphalt concrete of porosity 30~35% and fills the snow melt grout material in its hole and constitute, adopts macroporous asphalt concrete as the support chassis promptly, will melt the snow grout material and fill in the hole of skeleton, and it is loose to have avoided the road surface structure that ordinary road surface snow melt agent component runs off and leads to.
2. The utility model utilizes the surface layer in the drainage to discharge the seepage water melted on the upper surface layer of the snow melt in time, thereby reducing the secondary damage of the pavement structure caused by the accumulated water; meanwhile, the middle surface layer and the lower surface layer are separated by the water sealing separation layer, so that the adverse effect caused by seeper infiltration is thoroughly avoided.
3. The utility model discloses in utilizing the drainage surface course to melt the water that the upper strata of snow melts in time to arrange into the catch basin on road both sides, the catch basin is isolated through the barrier layer with all ring edge borders, prevents effectively that the water that contains the snow melt agent from destroying highway infrastructure and the peripheral ecological environment of highway.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of a portion a of fig. 1.
Detailed Description
The present invention will be described in more detail below with reference to the accompanying drawings so as to facilitate understanding for those skilled in the art. It should be noted that the following embodiments are only preferred examples of the present invention, and do not limit the present invention in any way. Any simple modification, change and equivalent changes made according to the essence of the present invention are all within the protection scope of the technical solution of the present invention.
Environment-friendly harmless snow melt bituminous pavement structure, including road surface structural layer and the roadside drainage system of setting in road surface structural layer both sides, as shown in figure 1. In particular, the method comprises the following steps of,
pavement structureThe layer is composed of a cement stabilized soil base layer 1 with the thickness of 30-35 cm, 0.8-1.0 kg/m and laid from bottom to top in sequence2The modified emulsified asphalt permeable layer 2 consists of an AC-25 lower surface layer 3 with the thickness of 8cm, a water sealing split layer 4, an AC-20 drainage upper surface layer 5 with the thickness of 6cm and a snow melting upper surface layer 6 with the thickness of 4 cm.
The utility model discloses a snow melt upper surface layer 6 comprises SBS asphalt concrete 6.1 of porosity 30~35% and the snow melt grout material 6.2 that fills in its hole, as shown in figure 2, SBS asphalt concrete 6.1 forms the support chassis, and snow melt grout material 6.2 then pours in the hole wherein.
The utility model discloses a snow melt grouting material 6.2 is the solution that water and snow melt agent (can adopt the calcium acetate magnesium snow melt agent of Tianjin xing Wao chemical production, the main component is organic compounds such as calcium acetate and magnesium acetate) were prepared according to 100:15~20, its purpose has stopped the chlorine salt to exist when keeping higher snow melt performance, fundamentally has reduced the harm to the environment, because used industry accessory substances such as carbide slag and secondary recycle's industrial acetic acid in a large number in the raw materials for production of this snow melt agent, manufacturing cost has greatly been reduced, accord with the intensive economic development mode of china and sustainable economic development strategy.
The snow-melting agent is slowly released in the snow-melting grouting material, and can meet the design service life of 5-10 years of the conventional pavement.
The prepared snow-melting grouting material 6.2 has an initial flow value of 20-30 s, so that the snow-melting grouting material can only flow into the pores of the SBS asphalt concrete 6.1 with the porosity of 30-35% but cannot flow into the AC-20 drainage upper surface layer 5 with the lower porosity (the porosity of the AC-20 SBS asphalt concrete is 10-15%).
The construction process of the snow melting upper surface layer 6 comprises the following steps: firstly, paving SBS asphalt concrete 6.1 with the thickness not less than 4cm on an AC-20 drainage surface layer 5, controlling the porosity of an asphalt concrete material to be 30-35% in paving, and maintaining for later use; and then pouring the prepared snow-melting grouting material 6.2 into the SBS asphalt concrete 6.1, scraping surface laitance by using a brush after grouting is full to enable an asphalt concrete structure to appear on the surface, and opening traffic after curing.
The utility model discloses a seal water and cut apart layer 4 by the SBS modified asphalt layer of bottom anda crushed stone layer spread on the asphalt, wherein the spraying amount of SBS modified asphalt is 1.5-2.0 kg/m2The amount of the crushed stone is 4.0-5.0 kg/m2. The water sealing and separating layer 4 can effectively isolate the snow melting water from permeating into the lower layer 3 of the AC-25, and thoroughly avoids the damage to the road caused by seeping of the accumulated water.
The roadside drainage system of the utility model is a water collecting ditch 7 (a movable grid cover plate 7.1 can be arranged on the water collecting ditch 7 to facilitate the cleaning of the water collecting ditch 7), and drain holes 7.2 are arranged on the side wall of the water collecting ditch corresponding to the position of the AC-20 drainage middle surface layer 5 at intervals, so that the water energy melted by the snow melting upper surface layer 6 can be discharged into the water collecting ditches 7 at the two sides of the road in time; to ensure the drainage effect, the height of the drainage hole 7.2 is slightly lower than that of the AC-20 drainage upper layer 5.
An impermeable layer 7.3 is laid on the inner side wall and the bottom wall of the water collecting ditch 7, and the impermeable layer 7.3 is made of SBS modified emulsified asphalt according to the proportion of 0.8-1.0 kg/m2The snow-melting water is sprayed to isolate the water collecting ditch from the surrounding environment, and the snow-melting water flowing into the water collecting ditch 7 is prevented from damaging the infrastructure of the road and the ecological environment around the road.
In winter, when snow is accumulated on the road, the snow melting grouting material 6.2 of the snow melting upper surface layer 6 releases compounds such as calcium acetate, magnesium acetate and the like to melt the snow in time, part of the melted snow water flows to the water collecting ditches 7 on two sides along the road surface, and part of the melted snow water seeps downwards into the drainage upper surface layer 5; the water sealing separation layer 4 can prevent the snow-melting water from further seeping downwards, and the drainage surface layer 5 can guide the snow-melting water to flow into the water collecting channel 7 through the drainage hole 7.2 due to the larger porosity. The anti-seepage layers 7.3 laid on the side walls and the bottom walls of the water collecting ditches can effectively prevent the snow melting water in the water collecting ditches 7 from permeating into the ecological environment around the highway.
Claims (5)
1. The utility model provides a snow melt bituminous pavement structure that environmental protection is harmless which characterized in that: comprises a pavement structure layer and roadside drainage systems arranged on two sides of the pavement structure layer;
the pavement structure layer is composed of a cement stabilized soil base layer with the thickness of 30-35 cm and 0.8-1.0 kg/m, which are laid from bottom to top in sequence2The modified emulsified asphalt permeable layer comprises an AC-25 lower surface layer with the thickness of 8cm, a water sealing split layer, an AC-20 drainage upper surface layer with the thickness of 6cm and a water sealing split layer with the thickness of 4cmA snow melting upper surface layer.
2. The environmentally friendly, non-hazardous snow melting asphalt pavement structure of claim 1, wherein: the snow melting upper surface layer is composed of SBS asphalt concrete with the porosity of 30-35% and snow melting grouting materials filled in pores of the SBS asphalt concrete.
3. The environmentally friendly, non-hazardous snow melting asphalt pavement structure of claim 1, wherein: the water sealing and dividing layer consists of an SBS modified asphalt layer at the bottom and a crushed stone layer spread on the SBS modified asphalt layer.
4. The environmentally friendly, non-hazardous snow melting asphalt pavement structure of claim 1, wherein: the roadside drainage system comprises a water collecting ditch, drain holes are formed in the side wall of the water collecting ditch corresponding to the surface layer position in AC-20 drainage at intervals, and impermeable layers are paved on the inner side wall and the bottom wall of the water collecting ditch.
5. The environmentally friendly, non-hazardous snow melting asphalt pavement structure of claim 1, wherein: the impermeable layer is made of SBS modified emulsified asphalt according to the proportion of 0.8-1.0 kg/m2And spraying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120825323.XU CN215104370U (en) | 2021-04-21 | 2021-04-21 | Environment-friendly harmless snow-melting asphalt pavement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120825323.XU CN215104370U (en) | 2021-04-21 | 2021-04-21 | Environment-friendly harmless snow-melting asphalt pavement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215104370U true CN215104370U (en) | 2021-12-10 |
Family
ID=79267471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120825323.XU Active CN215104370U (en) | 2021-04-21 | 2021-04-21 | Environment-friendly harmless snow-melting asphalt pavement structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215104370U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114622453A (en) * | 2022-03-30 | 2022-06-14 | 南京兴佑交通科技有限公司 | Recyclable grouting composite ice and snow melting asphalt pavement and paving method thereof |
| CN114703714A (en) * | 2022-03-24 | 2022-07-05 | 东南大学 | Self-supplementing salt-storage ice-snow-melting asphalt concrete pavement structure based on concentration gradient |
-
2021
- 2021-04-21 CN CN202120825323.XU patent/CN215104370U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114703714A (en) * | 2022-03-24 | 2022-07-05 | 东南大学 | Self-supplementing salt-storage ice-snow-melting asphalt concrete pavement structure based on concentration gradient |
| CN114703714B (en) * | 2022-03-24 | 2023-11-28 | 东南大学 | Self-supplementing salt-accumulating ice-snow-melting asphalt concrete pavement structure based on concentration gradient |
| CN114622453A (en) * | 2022-03-30 | 2022-06-14 | 南京兴佑交通科技有限公司 | Recyclable grouting composite ice and snow melting asphalt pavement and paving method thereof |
| CN114622453B (en) * | 2022-03-30 | 2024-03-05 | 南京兴佑交通科技有限公司 | Recyclable grouting composite ice and snow melting asphalt pavement and paving method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215104370U (en) | Environment-friendly harmless snow-melting asphalt pavement structure | |
| CN206052536U (en) | Asphalt bridge floor with discharge structure and bridge | |
| CN108301280B (en) | Permeable pavement structure | |
| CN207259888U (en) | A kind of sponge urban road sinking greenbelt | |
| CN208266622U (en) | A kind of sponge non-watertight road edge stone and sponge urban road structural system | |
| CN108532406A (en) | Can rapid construction high-bearing capacity pervious surface and laying method | |
| CN219604073U (en) | Rubber asphalt pavement structure for inhibiting pavement icing | |
| CN208748462U (en) | Can rapid construction high-bearing capacity pervious surface | |
| CN207793792U (en) | A kind of road surface permeable pavement structure | |
| CN207228080U (en) | Irrigation and drainage integrated channel | |
| CN214245208U (en) | Permeable sidewalk pavement structure with drainage channel | |
| CN214116117U (en) | Sponge city permeable pavement | |
| CN213114874U (en) | Urban road partition belt drainage structure | |
| CN210826986U (en) | Municipal administration road surface structure | |
| CN209924091U (en) | Rectangular side ditch structure for reducing roadbed water level and discharging road surface | |
| CN202492799U (en) | Waterproof and drainage structure for bridge pavement layer | |
| CN108191331B (en) | Hollow kerb capable of cleaning and permeating water and bearing runoff | |
| CN208250846U (en) | Surface drainage | |
| CN206521804U (en) | Excavation section drainage system | |
| CN221218360U (en) | Sponge urban road structure | |
| CN110700034A (en) | Novel distributed permeable pavement and paving method | |
| CN219568504U (en) | Highway roadbed structure in strong saline soil area | |
| CN220224798U (en) | Roadbed filling structure | |
| CN216074595U (en) | Pavement structure based on kerbstone permeates water | |
| CN219653431U (en) | Water permeable brick |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 450046 No.9 Zeyu street, Zhengdong New District, Zhengzhou City, Henan Province Patentee after: Henan Zhonggong Design and Research Institute Group Co.,Ltd. Country or region after: China Patentee after: CHINA CONSTRUCTION SEVENTH ENGINEERING DIVISION Corp.,Ltd. Address before: 450046 No.9 Zeyu street, Zhengdong New District, Zhengzhou City, Henan Province Patentee before: HENAN PROVINCIAL COMMUNICATIONS PLANNING & DESIGN INSTITUTE Co.,Ltd. Country or region before: China Patentee before: CHINA CONSTRUCTION SEVENTH ENGINEERING DIVISION Corp.,Ltd. |